Polyurethane Samples Research Articles

Addition of aceh bentonite in an effort to improve the heat resistance properties of polyurethane-based paint coatings

Polyurethane is a polymer compound whose main chain constituent is urethane group (-NHCOO-). Polyurethanes can be mixed with other polymers or other fillers in an effort to enhance and improve the properties of the single polymer. Metal coating materials are needed for metal materials that have properties resistant to heat thermal condition and corrosion that can damage the structure,. The priority and novelty of this research is to utilize the natural bentonite which is very potential in the local area to fill polyurethane-based coating paint in order to improve its properties. This research looked at the effect of mixing Polyurethane with Bentonite filler obtained from Nisam, North Aceh which has been modified with CTAB and AgNO3 surfactants. The sample formulation used is polyurethane and polyurethane with North Aceh Bentonite variations of 1.5, 2.5, and 3.5%. Characterization with the addition of Bentonite produces polymers that have good thermal stability capabilities. The addition of Bentonite filler into polyurethane polymer can affect the mechanical properties of the material. The Polyurethane/Bentonite composite sample has better thermal resistance, where in pure Polyurethane, the initial weight reduction of the pure Polyurethane sample is 50-150 ℃, the decomposition of pure Polyurethane is at 385 ℃. For Polyurethane/Bentonite 98.5:1.5% w/w nanocomposite, the initial weight reduction is 150-300 ℃, decomposition at 416 ℃. For Polyurethane/Bentonite 97.5:2.5 w/w, the initial weight reduction is 150-250 ℃ and decomposition at 430 ℃. Polyurethane/Bentonite 96.5:3.5 w/w initial weight reduction is also at 200-300 ℃ and decomposition at 458 ℃.

Improved Anticorrosion Properties of Polyurethane Nanocomposites by Ti3C2Tx MXene/Functionalized Carbon Nanotubes for Corrosion Protection Coatings

The corrosion protection of MXene-based composite coatings is challenging due to the relatively low dispersion of MXene in organic coatings. In this work, waterborne polyurethane (WPU) composites containing hybrid nanoadditives of Ti3C2Tx MXene and functionalized carbon nanotubes (CNTs) were fabricated. The thermal stability, surface hydrophobicity, surface roughness, and mechanical properties of the nanocomposites containing MXene or MXene/CNT hybrid additives were studied. Electrochemical methods, including electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization scans, were utilized to evaluate the anticorrosion properties of the nanocomposite coatings when applied to copper substrates. The polyurethane sample with 0.95 wt % Ti3C2Tx MXene and 0.05 wt % CNTs showed the lowest corrosion rate of 2.1 × 10–3 μm year–1. Additionally, the EIS results revealed that the corrosion resistance of WPU/MXene coatings significantly increased by adding 0.05 wt % CNTs. The mechanism of the improved anticorrosion performance of the WPU/MXene/CNT composite coating is illustrated. Moreover, the importance of optimizing the concentration of the CNTs is discussed to obtain better corrosion protection. The polyurethane nanocomposite coatings reported in this work present great potential as corrosion protection coatings for metals and other surfaces.

Development of amylopectin based polyurethanes for sustained drug release studies

In this research work, the crosslinked structure of polyurethane has been exploited for sustained drug delivery. Polyurethane composites have been prepared by the reaction of isophorone diisocyanate (IPDI) and polycaprolactone diol (PCL), which were further extended by varying the mole ratios of amylopectin (AMP) and 1,4-butane diol (1,4-BDO) chain extenders. The progress and completion of the reaction of polyurethane (PU) were confirmed using Fourier Transform infrared (FTIR) and nuclear magnetic resonance (1H NMR) spectroscopic techniques. Gel permeation chromatography (GPC) analysis showed that the molecular weights of prepared polymers were increased with the addition of amylopectin into the PU matrix. The molecular weight of AS-4 (Mw ≈ 99,367) was found threefold as compared to amylopectin-free PU (Mw ≈ 37,968). Thermal degradation analysis was done using thermal gravimetric analysis (TGA) and inferred that AS-5 showed stability up to 600 °C which was the maximum among all PUs because AMP has a large number of –OH units for linking with prepolymer resulting in a more cross-linked structure which improved the thermal stability of the AS-5 sample. The samples prepared with AMP showed less drug release (<53 %) as compared to the PU sample prepared without AMP (AS-1).

Bioactive Composite Material Based on Polyurethane with Isoniazid

An urgent task is the development of new implantation materials with a prolonged medicinal effect for the treatment of the extrapulmonary form of tuberculosis. The purpose of this investigation was to obtain an implantation material based on mesh polyurethane with the anti-tuberculosis drug isoniazid, to study the drug release of isoniazid from the polymer, to study the biodegradation of such materials, as well as to analyze cellular reactions to their implantation in the body of experimental animals. According to the results of the study of the dynamics of the release of isoniazid from the structure of mesh polyurethane, it was shown that a little more than 44% of isoniazid was released from the polymer matrix during the 389 days of the study. At the same time, in the first 3 days, a shock dose of the anti-tuberculosis drug was released – more than 18%, which can be important for reducing the pathological process at the location of the implant. When studying the biodegradation of the obtained materials, it was established that there was a redistribution of supramolecular structures, in which the type of these structures remained unchanged, but the size of the globular particles changed. In the model environments, the organization of large, possibly hydrophobic, destruction fragments into large globular formations probably took place, which was reflected in the increase of some physical and mechanical indicators. During implantation, the polymer material was subjected to cellular resorption due to the activity of phagocytic fragments, as well as mechanical loads, which contributed to the removal of destruction products from the mass of the polymer and led to a decrease in the main physical and mechanical parameters. According to the results of the implantation test by histological methods, it was established that around the samples of polyurethane with isoniazid a rather pronounced and long-lasting (up to 1 month) reaction of the type of aseptic inflammation was observed. At the same time, the cellular composition of the connective tissue capsule indicated a fairly good tolerability of the polymer material with prolonged release of isoniazid. It is shown that the obtained bioactive composite material based on polyurethane with isoniazid can be a promising implant material for the treatment of bone and joint tuberculosis.

The Performance and Distribution of Polyurethane-Modified Asphalt That Exhibits Different Molecular Weights

To analyze the effect of polyol on polyurethane (PU)-modified asphalt, three different soft segments of polyurethane were synthesized, and we utilized the reaction of MDI (diphenylmethane diisocyanate) with PU650, PU1000, and PU1400. With respect to molecular weight, the effect of polyol on the performance of modified asphalt was analyzed, and the asphalt was modified by using three different polyurethanes. To analyze the PU samples, the Fourier transform infrared spectroscopy (FTIR) tests and gel permeation chromatography (GPC) tests were selected; by contrast, to analyze the rheological properties and modification mechanism of asphalt, the dynamic rheology test (DSR), low-temperature bending creep test (BBR), multi-stress repetitive creep test (MSCR), FTIR, and differential scanning calorimetry (DSC) were selected. The results indicate that the molecular weight of polyol affects the molecular structure of polyurethane, the distribution of soft and hard segments, the content of soft segments, and the distribution of asphaltene in asphalt; thus, the asphalt modification effect occurs differently. The storage stability and high-temperature stability of the polyurethane-modified asphalts that were synthesized using three different polyols (i.e., polyols that exhibit different molecular weights) did not differ considerably, and the PU1400-modified asphalt exhibited the best low-temperature performance.

Mechanical properties of foamed polyurethane solidified ballasted track

Foamed Polyurethane Solidified Ballasted Track (FPSBT), an innovative railway track, is formed by solidifying ballast bed with foamed polyurethane. Compared with the traditional Discrete Ballasted Track (DBT), FPSBT does not require regular maintenance such as tamping and cleaning. However, limited studies exist on the mechanical properties of FPSBT. In this study, Laboratory experiments are conducted on polyurethane samples to investigate the effects of polyurethane density on the mechanical properties of FPSBT. Furthermore, the performance of DBT and FPSBT with different polyurethane densities are compared, and the recommended polyurethane density is obtained. FPSBT exhibited negligible accumulation of deformation under cyclic loads, indicating excellent performance of FPSBT owing to the anti-deformation properties of polyurethane. Further, a track load vehicle test is conducted. FPSBT exhibited better load-transmitting ability than DBT. Finally, the construction and application of FPSBT in China are introduced. This study is expected to contribute to realizing a more extensive application of FPSBT.

Positive Control(s) in Polyurethane Condom-Lubricant Compatibility Testing

Abstract Despite the proliferation of over-the-counter (OTC) personal lubricants (PLs) in the last two decades, to date, no known positive control has been identified to assess the compatibility of these PLs with polyurethane (PU) condoms. In the absence of suitable positive controls, PU condom compatibility with OTC PLs is assessed using a method built for testing compatibility of latex condoms with PLs. Herein, we attempt to identify a safe-to-handle positive control(s) for determining PU condom-lubricant compatibility. At room temperature (RmT), swelling of and induced stress in PU condom sample coupons were studied at various strain rates after discrete applications of a few ingredients common in commercial PLs. Additionally, stress reduction at a constant stretch was measured at 37°C. At low strain rates, changes in the induced stress and stress-to-strain ratio were detectable because of ingredients, e.g., hydroxy-terminated poly(dimethyl siloxane) of viscosity 25 cSt that caused substantial swelling of the condom materials at RmT, indicating prospective positive controls. At 37 °C, the percent stress reduction in PU samples under constant stretch was significant, with a few PL ingredients that did not significantly swell the PU material at RmT. Ingredients that enable significant stress reduction can serve as positive controls in PU condom-lubricant compatibility testing using the tensile method, provided the strain rate is comparable to the rate of condom-lubricant interaction, as evidenced by swelling study. At RmT, absence of swelling and insignificant changes in tensile properties at high strain rates do not guarantee the absence of interactions. Instead of testing mineral oil on latex condoms, manufacturers may now use a PU condom-specific positive control, when testing compatibility of PU condoms with OTC PLs.

Colorless, Transparent, and High-Performance Polyurethane with Intrinsic Ultraviolet Resistance and Its Anti-UV Mechanism

Polyurethane (PU) is a widely used polymer material that will age under prolonged exposure to ultraviolet (UV) light, shortening the service life. Several methods have been used to prepare the anti-UV PU, including adding nonreactive anti-UV additives, functional fillers, and biological antioxidant molecules. However, the nonreactive anti-UV additives may migrate during long-term use, the functional fillers may damage the mechanical properties and seriously reduce the light transmittance of the sample, and the biological antioxidant molecules will inevitably color the sample. To solve these problems, in this work, a benzotriazole UV absorber (Chiguard R-455) was introduced into the PU molecular chains by in situ polymerization to prepare the nonmigrating intrinsic anti-UV PU sample with high performance and colorless transparency. The anti-UV PU samples exhibit light transmittance of over 88% in the visible range and superior mechanical properties with tensile strength higher than 65 MPa and elongation at break higher than 900%. After 24 h UV irradiation (200 W, 365 nm), the tensile strength and elongation at break of pure PU sample are significantly reduced to only 8.9 and 15.8% of the original one, respectively. On the contrary, the addition of Chiguard R-455 will endow the PU sample with excellent anti-UV performance. After 24 h UV irradiation, the tensile strength (67.2 ± 1.6 MPa) and elongation at break (917.4 ± 30.0%) of PU-0.5% (the content of Chiguard R-455 is only 0.5 wt %) have changed little compared with the sample without irradiation (67.4 ± 3.5 MPa and 919.4 ± 26.5%). Additionally, the anti-UV mechanism of the PU sample is systematically studied. This work provides a feasible method for preparing colorless, transparent, high-performance, nonmigrating intrinsic UV-shielding PU samples, which can be used as a UV light-shielding material in various fields with visible and aesthetic requirements, such as protection fields and wearable products.

Activated carbons with high micropore volume obtained from polyurethane foams for enhanced CO2 adsorption

Microporous activated carbons with remarkably high CO2 uptake have been synthesized using polyurethane (PU) commercial foams as precursors. The PU samples were pyrolyzed at different temperatures in N2 atmosphere and chemically activated with KOH. Adsorption isotherms at 0 °C and 25 °C and immersion calorimetry were applied to provide a deeper knowledge about the most relevant factors implied in CO2 capture process explaining, hence, the values of adsorption obtained. CO2 adsorption uptakes reached values of 7.4 mmol/g at 0 °C, 5.0 mmol/g at 25 °C and 2.7 mmol/g at 50 °C. The remarkably high values of CO2 uptake are closely related with the BET specific surface area of the carbon foams but also with the high volume of narrow micropores all the samples present a high volume of micropores (between 0.59 and 0.71 cm3/g) as also confirmed by immersion calorimetry.

Surrounding water vapor induced diffusion and physisorption of water within thermoplastic polyurethane TPU samples: A critical analysis of DVS data

In this paper, dynamic vapor sorption (DVS) experiments on thermoplastic polyurethane (TPU) samples are presented. Experiments were conducted at different constant temperatures – at 15, 25, and 35 degrees C – giving access to the sorption isotherm showing almost no temperature dependency. As the specimens were prepared with a defined geometry (disc’ with different thicknesses from 600 to 1600 μm and a diameter of 30 mm), the recorded mass history in response to a quasi-instantaneous change of the sample-enclosing humidity was employed to backcalculate diffusivity in narrow ranges for the prescribed externally assigned relative humidities, with a step-wise increase (or decrease) of ten percent. The backcalculated diffusion coefficients show dependency on (i) the temperature what is well described in Arrhenius plots and (ii) the relative humidity range. The influence of sample thickness is marginal, indicating that the surface resistance to mass transfer, as quantified by the Biot number, is negligible when interpreting DVS data presented in this paper. Furthermore, the order of magnitude of the backcalculated diffusion coefficients and their temperature dependency in terms of the associated activation energies is discussed, depending on whether the physi-sorbed water content within the polymer network or the (externally) assigned water vapor content is employed as potential/state variable for the mathematical description of the diffusion process (gradients of the state variable represent the driving force of the diffusion process). When water vapor content is employed, the slope of the sorption isotherm has to be considered in the diffusion analysis.

Catalyst-free synthesis of low-temperature thermally actuated shape memory polyurethanes with modified biobased plasticizers.

Recent years have seen research into developing specific application-based materials with particular components. Bio-based polyurethanes (PUs) with self-tightening effect through shape recovery at low temperature have been designed from sesame oil-based plasticizer (HSSO). Without using a catalyst, the produced plasticizer was used to create PU samples. In contrast, orcein-based PU has been created both with and without HSSO. The prepared samples have been analyzed through instrumental as well as chemical analyses for surface chemistry, thermal stability and morphology. The gel content and water absorption capacity of HSSO based PU samples has been observed to be 99.27% and 14.94%, respectively. Shape memory study of the PU samples revealed that HSSO-based PU showed fast shape recovery at 60 °C with shape recovery rate (R r) and shape fixing rate (R f) of 94.44% and 5%, respectively, in 150 seconds, whereas at 36 °C the sample showed 85% R r in 15 minutes with 93.1196 N force and 52.78% R r without force. Low-temperature thermal actuation and high water uptake highlight the prepared samples as suitable candidates for self-tightening structures in textile and biomedical fields.

Thermal desorption gas chromatography-mass spectrometry for investigating the thermal degradation of polyurethanes.

Thermal Desorption Gas Chromatography-Mass Spectrometry (TD-GC-MS) was used to investigate the thermal degradation of two different polyurethanes (PUs). PU samples were heated at different heating rates and the desorbed products were collected in a cold injection system and thereafter submitted to GC-MS. The prospects and limitations of the detection and quantification of semi-volatile degradation products were investigated. Temperature dependent PU depolymerization was observed at temperatures above 200 °C, proved by an increased release of 1,4-butanediol and methylene diphenyl diisocyanate (MDI) representing the main building blocks of both polymers. Their release was monitored quantitatively based on external calibration with authentic compounds. Size Exclusion Chromatography (SEC) of the residues obtained after thermal desorption confirmed the initial competitive degradation mechanism indicating an equilibrium of crosslinking and depolymerization as previously suggested. Matrix-Assisted Laser Desorption Ionization (MALDI) mass spectrometry of SEC fractions of thermally degraded PUs provided additional hints on the degradation mechanism.

Моделирование использования АСМ при исследовании полиуретановых образцов с карбонизированной поверхностью

One of the most important characteristics of polyurethane endoprostheses used in modern medical practice is the quality of their surface. As a rule, such products are coated with a special carbon-ized nanolayer to improve biocompatibility with living tissue. In terms of mechanical properties, these layers are not as flexible as polyurethane and are prone to brittle microdamage. Therefore, a reliable determination of the presence and distribution of microcracks in the nanocarbon layer on the surface of an endoprosthesis is an important factor for assessing the biocompatibility and pos-sible injury to living tissues in the contact zone. The article presents the results of computer simu-lation of an AFM probe contact interaction with polyurethane samples having a carbonized nano-coating. The main goal of the study was to find an answer to the question whether it is possible to determine the presence of microdamages in polyurethane hidden under a carbonized coating using atomic force microscopy, and to classify them. Obviously, their presence can significantly aggra-vate the damaging effect of surface cracks on living biological tissue during the deformation of an endoprosthesis. Three cases of local microdamages that can occur in such samples are considered: a) there is a vertical crack in the carbon nanolayer, no damage in polyurethane; b) a cohesive dam-age of polyurethane (a vertical crack) was added to the vertical crack in the nanolayer; c) an adhe-sive delamination between the layer and polyurethane (a horizontal crack) was added to the verti-cal crack in the nanolayer. Computer modeling has shown that using atomic force microscopy, it is possible to quite accurately determine the presence of microcracks in the surface carbon nanolayer, while microdamages of the polyurethane itself, hidden under it, have a much weaker effect on nanoindentation.

Development of a Hydrophobic Carbon Sponge Nanocomposite for Oil Spill Cleanup

Oil leaks (or spills) into the aquatic environment are considered a natural disaster and a severe environmental problem for the entire planet. Samples of polyurethane (PU) composites were prepared with high specific surface area carbon nanotubes (CNT) to investigate crude oil sorption. Scanning electron microscopy (SEM), Fourier-transform infrared spectroscopy (FT-IR), density measurements, and mechanical compression tests were used to characterize the polyurethane-carbon PU-CNT prepared samples. The spongy composites exhibited good mechanical behavior and a contact angle of up to 119°. The oleophilic character resulted in increased hydrophobicity, a homogeneous oil distribution inside the sponge, and a sorption capacity in a water/oil mixture of 41.82 g/g. Stress-strain curves of the prepared samples showed the good mechanical properties of the sponge, which maintained its stability after more than six sorption desorption cycles. The CNT-PU composites may prove very effective in solving oil pollution problems.

Preparation of polyurethane coating formulation based on dihydropyridine derivatives as an insecticide and antifungal additives for surface coating applications

Pyridine derivatives are prepared and evaluated before being incorporated into polyurethane coating formulations to create antifungal and insecticidal coating compositions. Different analyses, including Fourier transform infrared (FTIR), mass, proton nuclear magnetic resonance (1HNMR), and carbon-13 nuclear magnetic resonance (13C NMR) spectra, were used to confirm the synthesized compounds. The material has been coated using a polyurethane coating mixture. Gloss, scratch resistance, flexibility, and adhesion are some of the coating attributes investigated; mechanical capabilities include impact resistance and shore hardness, and physicochemical properties such as chemical resistance of coated polyurethane (PU) samples are also investigated. PU coatings were applied to substrates to measure coating properties. The mechanical properties of the PU cast films were measured. The results of the experiments revealed that all PU coatings based on dihydropyridine derivatives had good scratch resistance which varied from > 1.5 to > 2 kg. While reducing gloss value varied from 65 to 85, there is no effect of the prepared compounds in the other mechanical test. These PU coatings have excellent chemical resistance except the alkali resistance as evidenced by their physicochemical properties. The observed antifungal and insecticide activities indicated that dry wood coated with PU based on dihydropyridine derivatives is promising for resistance to these insects and fungi, in comparison with the paint as blank. The results revealed that the inhibition zones diameter by compound 2 were 25.1 ± 0.69, 23.2 ± 0.94, 20.16 ± 0.62, 20 ± 0.80, and 18 ± 0.81 mm against A. terreus, A. niger, A. flavus, C. albicans, and A. fumigatus, respectively, whereas the inhibition zones (IZ) diameter by compound 3 were 22.56 ± 0.30, 21.03 ± 0.49, 21.03 ± 0.61, 21 ± 0.66, and 20 ± 0.78 mm versus A. niger, A. fumigatus A. flavus, C. albicans, and A. terreus, respectively. The ordering activity against insects increased as the dose concentration of the pyridine derivatives was increased.

Corrosion resistance of polyurethane grouting material in landfill site

Landfill has been a common way to deal with municipal solid waste. It is critical to prevent the leakage of landfill leachate with corrosivity and biotoxicity in landfill sites. Non-aqueous reacting polyurethane grouting material has been demonstrated to have excellent water-barrier performance. This study aimed to verify the feasibility of non-aqueous reacting polyurethane grouting material application to landfills. The corrosion resistance of the grouting material was investigated using laboratory immersion tests with 14 chemical solvents. The corrosion resistance was evaluated based on the weight gain rate of polyurethane samples and their microscopic damage. The test results show that the polyurethane grouting material showed good resistance to acids (sulfuric acid, nitric acid and propionic acid), salt solutions (calcium chloride, ferric chloride, zinc sulfate and lead acetate) and landfill leachate. However, methyl phenol could lead to chemical degradation. Hydrochloric acid, gasoline and ammonia may cause minor damage to polyurethane. The results are expected to provide reference for evaluating the chemical corrosion resistance of polyurethane grouting materials in landfill sites.

Study on the new polyurethane material suitable for foaming in water

Two-component polyurethane has been widely used in various types of engineering. In this work, polyurethane samples with different foaming ratios were obtained by adjusting the ratio of each component and foaming in water. By studying the morphology and mechanical properties of these specimens, the polyurethane with foaming ratio of 16 was selected as the most suitable polyurethane for foaming in water, and the mechanical properties of this material were deeply studied. The results show that the compressive, tensile and bending strengths of polyurethane increase with the increase of density and decrease with the increase of soaking time. In addition, compared with the force along the growth direction, when the polyurethane specimens are subjected to the force orthogonal to the growth direction, their compressive strength decrease, while their tensile strength and bending strength increase.

Engineered polymer matrix novel biocompatible materials decorated with eucalyptus oil and zinc nitrate with superior mechanical and bone forming abilities

Electrospun scaffolds based on polymer-matrix composites have gained wide attention recently. A novel engineered biocompatible scaffold is manufactured using polyurethane (PU) loaded with eucalyptus oil (EL) and Zinc nitrate (ZnNO3) using the electrospinning technique. Morphological observations revealed the reduced fibre diameter for the PU/EL and PU/EL/ZnNO3 compared to PU. Contact angle studies indicated the increase in hydrophobic behaviour of the PU/EL whereas an increase in wettability for PU/EL/ZnNO3 compared to PU. EL and ZnNO3 presence in the PU matrix enhanced the mechanical strength. Surface topology analysis showed a decrease in the roughness for the PU/EL and PU/EL/ZnNO3 compared to the pristine PU. Both PU/EL and PU/EL/ZnNO3 showed prolonged clotting time and decreased haemolytic percentage compared to the polyurethane as indicated in their anticoagulation studies. In vitro bone mineralisation testing depicted the increase in calcium deposition for the modified PU samples compared to pure polyurethane sample. Hence, PU/EL and PU/EL/ZnNO3 scaffold with superior properties render full avenues for new bone generation.

Industrial Preparation of Self-Lubricating Polyurethane via Direct Fluorination with Gaseous Fluorine.

Fluorination modification is an effective way to improve the friction property of a polymer; however, current preparation of fluorine-containing polymers is limited by the high cost and complex synthesis. Here, an industrial fluorination strategy with gaseous fluorine (F2) to achieve fluorine enrichment on the surface of a polyurethane (PU) sheet was demonstrated. Benefiting from the high reactivity and strong diffusion of F2 gas, the as-prepared PU sample was characterized by the rich fluorinated surface with the slightly fluorinated bulk. As a result, the fluorinated PU combined the excellent mechanical properties of pristine PU with the unique function of the fluorine-containing polymer, where the fluorinated surface may function as a robust lubricating layer, contributing to remarkable promotion of friction property while maintaining the mechanical strength unchanged. The friction coefficient decreased to 0.5 at the dry condition and 0.1 at the wet condition from the initial value of 1 and 0.45 for the pristine PU sample. The surface manipulation via direct fluorination offers great opportunities to tailor the friction property while keeping the mechanical strength unchanged.

In vivo evaluation of skin integration with ventricular assist device drivelines.

Ventricular assist device (VAD) driveline exit site infection is a common complication. 3D scaffolds manufactured with highly homogeneous pores via melt electro-writing (MEW) may generate an improved skin-driveline interface which permits cellular in-growth and creates a barrier to prevent bacterial migration along the driveline tissue tunnel. This study investigated skin integration on segments of Heartmate 3 driveline: smooth polyurethane, velour, and on a custom MEW scaffold in a small animal model. Drivelines with surfaces consisting of smooth polyurethane, velour bonded to smooth polyurethane, and smooth polyurethane with a MEW scaffold sleeve were implanted percutaneously in the dorsum of 42 rats. Each rat was implanted with 2 pieces of driveline of 2 cm in length. Skin integration was assessed after 7 and 14 days. Macroscopically, velour and MEW scaffold surfaces were anchored at the driveline-skin interface while smooth polyurethane samples were not attached. The histology analyses showed epidermal migration throughout the thickness of the velour and MEW scaffold groups. Evident tissue growth around single MEW scaffold fibers resulted in full coverage of the pores, while areas of compacted fibers were apparent in the velour group. Tissue ingrowth was significantly higher in the MEW group compared to the velour group after 7 (p < 0.0001) and 14 days (p < 0.0001). Marsupialization was observed in the smooth polyurethane samples. Mechanical pull-out forces were similar between velour and MEW scaffold groups at 7 and 14 days (p > 0.05). Velour and MEW scaffolds promoted epidermal integration while smooth polyurethane drivelines did not. Fine control of MEW scaffold structure production resulted in full cellular coverage and may reduce driveline infection.