Characterization Of Carboxymethyl Cellulose Research Articles

Development and characterization of pomegranate peel extract-infused carboxymethyl cellulose composite films for functional, sustainable food packaging

Our study explores the development and characterization of carboxymethyl cellulose (CMC)-based composite films integrated with clay particles and pomegranate peel extract (PE), aiming to inspire the films with natural antimicrobial and antioxidant properties for potential applications in food packaging. We conducted a comprehensive examination of the mechanical, barrier, surface, and degradation properties of these composite films, considering the impacts of incorporating clay particles and PE on their overall performance. Our findings reveal that the inclusion of clay particles enhances the mechanical strength and barrier properties of the films, while PE contributes to antioxidant and antibacterial effects. Namely, after the integration of 3 wt% clay, the tensile strength exhibited a remarkable increase of approximately 300%, accompanied by a notable reduction of 60% in water vapor permeability and 30% in oxygen transmission rate. Furthermore, the integration of PE into CMC films promoted antibacterial activity against 2 g-positive bacterial species, Staphylococcus aureus and Listeria monocytogenes. Additionally, we conducted a life cycle assessment (LCA) to quantify the cradle-to-gate environmental impacts of the developed bio-based active films. When normalized to the functional properties of the films, including mechanical and barrier performance, we observed significant benefits, with reductions of up to 59% after the concurrent incorporation of PE and clay nanosheets. Overall, our study underscores the potential of CMC-based composite films augmented with PE as a promising solution for sustainable food packaging, offering enhanced functionality while reducing environmental impact and increasing food safety.

Synthesis and Characterization of Carboxymethyl Cellulose (CMC) from Palm Leaf Fronds (Borassus Flabellifer)

Palm frond fibers are one of the wastes that are underutilized by society and have a cellulose content of 54.27% so they have the potential to be made into carboxymethyl cellulose (CMC). This research was conducted to determine the process of synthesizing CMC from palm frond fibers and the characteristics of CMC from palm frond fibers. The methods used in this research are synthesis and characterization. The CMC synthesis process consists of alkalization and carboxymethylation processes. Characteristics of palm frond fiber CMC include yield, color, pH and FITR test. The results showed that the CMC characteristics of palm leaf fiber produced a yield of 90%, pH 6.83 and a grayish white color. FTIR CMC results from palm leaf fiber show the -OH group in the absorption area of 3331.36 cm-1, C-H in the absorption area of 2891.5 cm-1, and the -COC- group in the absorption area of 1000-1300 cm-1. Keywords: Palm Frond Fiber, Carboxymethyl Cellulose (CMC), Cellulose, Color

Synthesis and characterization of carboxymethyl cellulose from pine needles for biomedical and regenerative medicine applications

______________________________________________________________________________________Carboxymethyl cellulose (CMC) is one of the most widely used components of hydrogel for biomedical applications as its precursor cellulose is the most abundant biological macromolecule on the Earth. Recent years have seen a remarkable increase in CMC synthesis from various plant sources. In the present study we have utilised cheer pine needles (Pinus spp.) due to its abundance and easy availability in Himalayan regions across India. The cellulose was extracted from pine needles. Then, the etherification process was used to prepare CMC from pine needle cellulose, with sodium hydroxide and monochloroacetic acid (MCA). CMC yield, degree of substitution, water retention capacity, oil retention capacity, ash content, and CMC content were determined by comparing obtained CMC to standard CMC. The purity of the synthesised CMC is represented by CMC content. The prepared CMC had a purity of 10 % and a yield of 110 %. The degree of substitution, water retention capacity, and oil retention capacity were all determined to be 0.02, 8.4 g/g, and 4g/g, respectively. The ash content of the synthesised CMC was calculated to be 6 %. The majority of characteristics were either equivalent to commercial CMC or superior to it therefore the synthesised product can be used as a potential component to fabricate biomaterials for biomedical applications.

Synthesis and characterization of carboxymethyl cellulose from pineapple leaf and kenaf core biomass: a comparative study of new raw materials

Synthesis and characterization of carboxymethyl cellulose from pineapple leaf and kenaf core biomass: a comparative study of new raw materials

Synthesis and characterization of carboxymethyl cellulose with high degree substitution from Vietnamese pineapple leaf waste

In this work, cellulose was successfully extracted from pineapple leaf waste by 0.75 M NaOH at 90oC and 5 M HNO3 at 70oC for 1.5 h and 5 h, respectively. The obtained cellulose fibres, with average diameters of 150-300 nm, were converted to carboxymethyl cellulose (CMC) by esterification. The pure cellulose was soaked in a solution mixture of isopropanol and NaOH for 2 h. It was then reacted with chloroacetic acid (MCA) at 60oC for 1.5 h. The optimum conditions for carboxymethylation were found to be 5 g cellulose, 1.5 g MCA, and 15 ml 16% w/v NaOH. The obtained CMC had a high degree of substitution (DS) of 2.3. The properties of CMC were determined.

Preparation and Characterization of Chitosan-Gelatin-Glycerol Biocomposite for Primary Wound Dressing

Rice straw is one of material containing cellulose to produce Carboxymethyl Cellulose (CMC). CMC is a non toxic polysaccharide that produces from cellulose that widely used in the pharmaceutical, food, textile, detergent, and cosmetic products industries. There are two stages usually use to produce CMC which are mercerization and esterification processes. Rice straw waste is one of the materials to produce CMC, it has a cellulose content of 37.7%, hemi-cellulose 21.99%, and lignin 16.62 %. BPS Aceh shown that the total rice harvested area was 310.01 hectares, with a total production of 1.71 million tons, and rice produced at 982.57 thousand ton. This study aims to reduce waste and environmental pollution caused by rice straw and collects information of rice straw as a basic material to produce of carboxymethyl cellulose and to increase the economic value of rice straw. The effects of various wieght parameters sodium monochloroacetate on chemical properties of CMC that produce from rice straw were investigated in this research. Rice straw was collected from a rice field in Nisam, North Aceh. The research conducted by synthesizing 5 grams rice straw for 5.5 hours using NaOH and Sodium Monochloroacetate solutions. With variations weight of sodium monochloroacetate are 5,6,7,8 and 9 grams. The characterization of CMC was carried out by Fourier Transform Infrared (FTIR), CMC yield, DS, Viscosity, water content, pH. The result shows that addition of sodium monochloroacetate was significant factors influence the chemical properties on CMC. The CMC that produced in this study achieved to National Indonesia Standard (SNI).

Synthesis Carboxyl Methyl Cellulose (CMC) from Rice Straw (Oryza Sativa L.) Waste

Rice straw is one of material containing cellulose to produce Carboxymethyl Cellulose (CMC). CMC is a non toxic polysaccharide that produces from cellulose that widely used in the pharmaceutical, food, textile, detergent, and cosmetic products industries. There are two stages usually use to produce CMC which are mercerization and esterification processes. Rice straw waste is one of the materials to produce CMC, it has a cellulose content of 37.7%, hemi-cellulose 21.99%, and lignin 16.62 %. BPS Aceh shown that the total rice harvested area was 310.01 hectares, with a total production of 1.71 million tons, and rice produced at 982.57 thousand ton. This study aims to reduce waste and environmental pollution caused by rice straw and collects information of rice straw as a basic material to produce of carboxymethyl cellulose and to increase the economic value of rice straw. The effects of various wieght parameters sodium monochloroacetate on chemical properties of CMC that produce from rice straw were investigated in this research. Rice straw was collected from a rice field in Nisam, North Aceh. The research conducted by synthesizing 5 grams rice straw for 5.5 hours using NaOH and Sodium Monochloroacetate solutions. With variations weight of sodium monochloroacetate are 5,6,7,8 and 9 grams. The characterization of CMC was carried out by Fourier Transform Infrared (FTIR), CMC yield, DS, Viscosity, water content, pH. The result shows that addition of sodium monochloroacetate was significant factors influence the chemical properties on CMC. The CMC that produced in this study achieved to National Indonesia Standard (SNI).

Synthesis and Characterization of Carboxymethyl Cellulose from Eichhornia crassipes and Pennisetum purpureum as Potential Source of Sustainable Drilling Mud Additives

Cellulose extracted from Eichhornia crassipe (Water hyacinth) and Pennisetum purpureum (elephant grass) yielded 21.88% and 31.39% respectively. Cellulose extracted was used to synthesize carboxymethyl cellulose (CMC) under heterogeneous condition with ethanol as the supporting medium. Effect of concentration of sodium hydroxide (NaOH) on the modification of cellulose to yield CMC was investigated. It was observed that percentage CMC yield increased with increase in NaOH concentration. Comparative studies of the two biomass samples through physico-chemical analyses in terms of degree of substitution (DS), water absorption capacity, water loss, pH, conductivity and analytical characterization using SEM-EDX, FT-IR and EDXRF spectroscopy of the extracted cellulose and synthesized CMC were done. The DS of CMC obtained by alkalization reaction of cellulose from E. crassipe and P. purpureum with monochloroacetic acid was in the range of 0.54-0.75 which showed that it is highly soluble. Fourier Transform-Infrared (FT-IR) spectrophotometer showed changes of functional group from cellulose to CMC. The absorption at 3283 cm-1 and 3320 cm-1 as observed in E. crassipe and P. purpureum spectra showed OH vibration of polymeric compounds. The presence of bands at 1592 cm-1 and 1417 cm-1 in E. crassipe spectrum and bands at 1566 cm-1 and 1410 cm-1 observed in P. purpureum spectrum showed the presence of –COO group as a result of carboxymethylation reaction on cellulose during modification process. EDXRF was applied for quality control and product development due to the unavailability of the elemental composition of elephant grass and water hyacinth in the literature. The morphology and elemental compositions on the surface of the biomass were analyzed by SEM-EDX and among the chemical elements detected were C, O, Na, Mg, Al, S, Cl, K, Ca, Fe Si and Zr which confirms the elements identified with EDXRF spectroscopy. XRF spectra show high peaks at Fe, K and Sn for untreated P. purpureum samples and high peaks at Ca, Fe and Sr for untreated E. crassipe fiber. Both samples are rich in Iron (Fe). Samples were free from some toxic elements such as Pb, As, Hg, V and Ni which makes them safe for use as novel raw materials for industrial applications. Also very low concentration of Sulphur in the samples, make them safe to be considered as additives in drilling mud formulation.

Characterization of Carboxymethyl Cellulose (CMC) Synthesized from Microcellulose of Cassava Peel

In this study, carboxymethyl cellulose (CMC) was synthesized from the cellulose of cassava peel using alkalization and etherification reaction, and it was subsequently characterized with various techniques. Microcellulose was obtained by hydrolyzing a;-cellulose from cassava peel using H2SO4 with concentrations of 45%, 47%, and 49%. The experimental results indicate that the varying concentrations of acid affect the particle size of the cellulose, with 49% H2SO4 solution producing a cellulose with particle size of around 0.45-2.42 �m and relative percentage of 11.3% according to PSA analysis. Other analyses conducted included determination of substitution degrees, DTG/DTA/TGA, FTIR, SEM, and XRD. The value of the substitution degree was determined at 0.27. TGA decomposition thermograms at a temperature of 150oC-320oC of 19.60 % indicate CMC compounds. DTA thermograms show that these CMC compounds have endothermic properties at 140oC and exothermic properties at 260oC. FTIR spectra show the presence of absorption band at wave number 1605 cm-1, which is a characteristic absorption of carbonyl group bound to cellulose. The results of SEM analysis indicate that the CMC has a tenuous surface morphology, and the XRD diffractograms are marked by the presence of weak peak at 2e = 20o, implying the existence of CMC as mostly amorphous.

English

Cellulose is the most abundant biomass in nature with properties that have enabled its application in different industrial processes. Its derivative, sodium carboxymethyl cellulose serves as an additive in food and non-food products such as desserts, detergents, paints etc. In this study, carboxymethyl cellulose (CMC) was synthesized from cellulose isolated from three ligno-cellulosic biomass, Tithonia diversifolia stalk (TDS), Musa parasidiaca stem (MPS) and unripe peel of Musa parasidiaca fruit (MPP). The isolation of cellulose was done by soda pulping and bleached using sodium hypochlorite, hydrogen peroxide, sodium hydroxide sequencing, followed by synthesis and purification of CMC. The physicochemical properties of the plant samples, isolated cellulose and bleached pulps including the synthesized CMC were determined. The effects of various processing stages on the properties of the cellulose and synthesized CMC were revealed in the study. CMC yield ranged from 62.57, 41.37 and 33.21% and the degree of substitution ranged from 0.33, 0.28 and 0.17 for TDS, MPS and MPP respectively. Further characterization of CMC using Fourier Transform Infrared (FTIR) confirmed the presence of major expected peaks that showed differences in terms of carboxymethyl substitution as compared to that of commercial CMC. The study revealed the potential of these plants for production of industrial grade CMC. Key words: Lignocellulosic biomass, cellulose, carboxymethyl cellulose, soda pulping, bleaching, etherification, Tithonia diversifolia, Musa paradisiaca.

Preparation and characterization of carboxymethyl cellulose containing quaternized chitosan for potential drug carrier

The objective of this study was to synthesize and characterize cystamine dihydrochloride (CYS) crosslinked carboxymethyl cellulose/quaternized chitosan (CMC/HACC) composite hydrogel film. Firstly, the glycidyl-based quaternary ammonium chitosan derivative (HACC) was synthesized using nucleophilic substitution reaction. Then HACC was analyzed by FTIR, 1HNMR spectra and the composite films at different blending ratio of CMC and HACC were studied by rheology measurement, mechanical and swelling tests. When the composite films were prepared under optimized conditions (CMC: HACC = 7:1), they showed excellent mechanical properties (with improved 93.3% tensile strength and 2.3% elongation at break) and swellability (equilibrium swelling ratio increased 270%) compared to pure CMC film. 5-Fluorouracil (5-FU) was used as drug model which has broad-spectrum anticancer properties. The 5-FU/CMC/HACC composite films showed redox and pH responsive of drug release properties along with well biocompatibility. The in vitro cytotoxicity and cell apoptosis studies showed the drug loaded composite films with obvious toxicity against HepG2 cells especially in the presence of GSH. In addition, CMC/HACC composite films showed good antibacterial against S. aureus and E. coli, while pure CMC film had no antimicrobial activities. It can be concluded that CMC/HACC composite films can be potentially used as targeted drug delivery system.

Preparation and Characterization of Carboxymethyl Cellulose with a High Degree of Substitution from Agricultural Wastes

This paper describes the use of agricultural wastes for the preparation of carboxymethylcellulose (CMC) with a high degree of substitution using two methods: the classic and a microwave-assisted method. A series of CMC samples with degrees of substitution from 0.43 to 2.83 were prepared from cellulose extracted from almond shells, almond stems, and fig stems by a one-step carboxymethylation reaction. The highest degree of substitution was 2.83, which corresponded to CMC from fig stems when butanol was used as a solvent. This CMC was easily dissolved in water and thus would provide many opportunities for diverse applications. The obtained CMCs were characterized using different tools. Different CMC films were prepared using the casting method and were characterized by the determination of their mechanical properties. The obtained results can be considered promising; they demonstrate the potential of using cellulose derivatives for the production of transparent and strong films.

Synthesis and characterization of carboxymethyl cellulose (CMC) from salak-fruit seeds as anode binder for lithium-ion battery

Lithium-ion batteries are most popular battery for applications as portable electrical energy storage. Lithium-ion battery have some advantages compared to other battery such as have large specific energy capacity, light weight and long-life span. One of the components that contribute to the quality of Lithium-ion batteries is the binder material. Carboxymethyl Cellulose (CMC) is one of the most widely used binder materials other than PVDF. CMC can be synthesized from various organic materials such as empty bunches of palm, water hyacinth and salak-fruit seed. In this research, CMC is obtained from waste of salak-fruit seed (Salacca zalacca) and then used as anode binder in lithium-ion battery. The steps of CMC synthesis consist of cellulose isolation from salak-fruit seed, followed by alkalization process, carboxymethylation and finally the purification process. FTIR spectrum of CMC shows the successfully of CMC synthesis, the presence of strong absorption band at 1600 cm-1 and 1438 cm-1 is related to stretching vibration from the carboxyl group (COO-) and carboxyl group as it salts (COO-Na), respectively. The absorption in the region 1321–1400 cm-1 is due to symmetrical deformations of CH2 groups while broad absorption at around 3400 cm-1 is due to the stretching of the hydroxyl groups (-OH). Application CMC as binder of graphite anode with 5wt% CMC shows good surface profile and evenly distributed cavities with conductivity of about 0.815 S/cm.

Synthesis and Characterization of Carboxymethyl Cellulose from Oil Palm Empty Fruit Bunch Stalk Fibres

The current extraction of carboxymethyl cellulose (CMC) from wood has created competition with wood industries. Interest in alternative sources is critical to ensure the sustainable production of CMC. Therefore, the extraction of CMC from oil palm empty fruit bunch (OPEFB) stalk fibres was evaluated. CMC extracted from OPEFB stalk fibres was characterized for chemical composition as well as by spectroscopic, microscopic, physicochemical, and rheological tests. Highest cellulose content was obtained from raw stalk fibres with the least amount of lignin and residual oil as compared to the empty fruit bunch (EFB) and spikelet. The XRD analysis revealed that the native cellulose was transformed into an amorphous phase, as evidenced from the characteristic peaks that had almost disappeared. Likewise, the FTIR analysis showed that major peaks in the lignin and hemicellulose were absent, which enabled the cellulose to be converted to CMC. Microscopy analysis showed notable changes in the fibres’ morphology throughout the extraction process. In addition, X-ray diffraction (XRD), Fourier transform infrared (FTIR), scanning electron microscopy (SEM), physicochemical studies, and rheological tests on extracted CMC showed that there was a significant difference between each phase of the extraction process and this showed that OPEFB stalk fibre was feasible to produce CMC that was comparable to those of commercial CMC.

Synthesis and Characterization of Carboxymethyl Cellulose from Sugarcane Bagasse

Various raw materials including plant biomass, bacteria, algae and the Tunicates (marine animals) have been used to produce cellulose. However, agricultural waste has rarely been utilized for this purpose. In this work, Sugarcane bagasse was used as raw material to produce cellulose. Cellulose was extracted from sugarcane bagasse through the elimination of lignin and hemicellulose. Cellulose was then converted to carboxymethyl cellulose (CMCb) by using sodium monochloroacet (SMCA) and various sodium hydroxide (NaOH) concentrations. Fourier Transform Infrared Spectroscopy (FTIR) was applied to verify the effect of NaOH concentration on this property. The highest viscosity and degree of substitution (DS=0.78) were observed in 30 gr/100 ml NaOH of carboxymethylation. Maximum tensile strength of the films produced at these conditions was 37.34 Mpa. The addition of a various amount of glycerol (1 ml/ 100 ml, 2 ml/ 100 ml, 3 ml/ 100 ml) dramatically decreased the tensile strength. The highest level of water vapor permeability was also observed at the same NaOH concentration. Cellulose can be correctly extracted from sugarcane bagasse and converted to carboxymethyl cellulose. Based on the cellulose of the bagasse characteristic, proper amount of NaOH was found to get a high DS. CMCb has considerable features for application on biodegradable coating materials.

Synthesis and characterization of carboxymethyl cellulose from office waste paper: A greener approach towards waste management

In the present study, functionalization of mixed office waste (MOW) paper has been carried out to synthesize carboxymethyl cellulose, a most widely used product for various applications. MOW was pulped and deinked prior to carboxymethylation. The deinked pulp yield was 80.62±2.0% with 72.30±1.50% deinkability factor. The deinked pulp was converted to CMC by alkalization followed by etherification using NaOH and ClCH2COONa respectively, in an alcoholic medium. Maximum degree of substitution (DS) (1.07) of prepared CMC was achieved at 50°C with 0.094M and 0.108M concentrations of NaOH and ClCH2COONa respectively for 3h reaction time. The rheological characteristics of 1–3% aqueous solution of optimized CMC product showed the non-Newtonian pseudoplastic behavior. Fourier transform infra red (FTIR), nuclear magnetic resonance (NMR) and scanning electron microscope (SEM) study were used to characterize the CMC product.

Synthesis and Characterization of Carboxymethyl Cellulose from Tunisian Vine Stem: Study of Water Absorption and Retention Capacities

The aim of this work was to study the effect of the degree of substitution (DS) and the purity of sodium carboxymethyl cellulose (CMCNa) prepared from Tunisian vine stem on the absorption and retention of water. Vine stem was first delignified using souda-anthraquione, then bleached and finally chemically modified, in order to synthesize different CMCNa derivatives. The carboxymethylation reaction was carried out in presence of NaOH (40 %) and monochloroacetic acid (ClCH2COOH), in n-butanol as a reaction solvent. The obtained CMCNa derivatives were characterized using different tools such as the DS, Fourier transforms IR techniques, CP-MAS 13C-NMR, the exchange capacity as well as the determination of modification reaction yield. The performance of the prepared derivatives in term of absorption capacities and retention capacities was established. The performance of CMCNa derivatives was compared with that achieved by commercial counterparts and it was concluded that the prepared ones exerted higher efficiency.

Synthesis and Characterization of Carboxymethyl Cellulose (CMC) from Water Hyacinth Using Ethanol-Isobutyl Alcohol Mixture as the Solvents

 Abstract—Water hyacinth, a free-floating aquatic weed originating from South America has become a major floating weed of tropical and subtropical regions of the world. The plant has the tendency to regenerate from seeds and fragment allowing rapid increase in plant population. Water hyacinth is however a fiber that is rich in its cellulosic compounds, which can be derivated into somewhat multifunctional properties. Carboxymethyl Cellulose (CMC) is a derivated cellulose that is used in food products as a thickener agent or non-food products such as detergents, paints, and others. The research has investigated further on how one would synthesize CMC from water hyacinth as well examining the characterization of the CMC samples that is originated from the plant. The production of CMC involves four main processes: the isolation of alpha-cellulose from the water hyacinth and the synthesis by the alkali-catalyzed reaction (alkalization) of cellulose with chloroacetic acid (carboxymethylation) and finally the purification of the CMC itself to remove undesirable compounds. In this research, the variations are comprised of the NaOH added (5 M - 35 M) during alkalization and the ratio of the solvent between isobutanol and ethanol (ratio 80:20, 50:50 and 20:80) thus fifteen samples are obtained. The characterization is based on two testing methods: FTIR and Degree of Substitution (DS). During FTIR test, it is proven that CMC is produced in the experiment. This is verified from the spectrum transmitting 1400 cm-1 1600 cm-1 indicating ether and carboxyl functional group consecutively. On the other hand, the highest DS is obtained in sample CMC-28-10 with a value of 1.76 with the highest purity of 93.24.

Novel Treatment Route for Preparation and Characterization of Carboxymethyl Cellulose

A novel route of partial carboxymethylation, termed pad-dry-pad-cure, was investigated using conventional fabric processing equipment. The effect of process parameters such as concentration of sodium hydroxide, curing time, and concentration of ammonium monochloroacetate on the carboxymethylation content was probed. The treatment was characterized for uniformity by laser scanning confocal microscopy and for changes in fiber cross-sectional geometry by scanning electron microscopy (SEM). Confocal micrographs revealed the occurrence of treatment uniformly across the fiber cross sections, whereas SEM showed the resultant oval cross sections of the treated fibers.

Synthesis and characterization of carboxymethylcellulose and methyl methacrylate graft copolymers

PurposeThe purpose of this paper is to synthesise carboxymethylcellulose and methyl methacrylate graft copolymers (CMC‐g‐PMMA), which is used as an effective additive, for reinforcing the rice‐hull‐cement composite.Design/methodology/approachVarious CMC‐g‐PMMA copolymers were synthesised at different reaction temperatures, pH values of reaction solution and the dosages of monomer and initiator (potassium persulphate). The copolymers were characterised by Fourier transforms infrared (FT‐IR) spectra, thermal analysis (thermogravimetric and differential scanning calorimeter), X‐ray diffractometry (XRD) and scanning electron microscopy.FindingsAn optimal CMC‐g‐PMMA copolymer is obtained. For synthesis of the CMC‐g‐PMMA, the optimal reaction temperature is 80°C and pH value is 9. FT‐IR test of CMC‐g‐PMMA confirmed the existence of a chemical link between carboxymethylcellulose (CMC) and methyl methacrylate (MMA). The content of initiator has little effect on the reaction for synthesising the graft copolymer. Thermal analysis indicates the occurrence of graft reaction in CMC and MMA. XRD test proved that the chains of the graft copolymer can enlarge the proportion of the amorphous regions of CMC. Adding MMA has damage effect on the crystallisation.Research limitations/implicationsSince the results of this paper are obtained from the laboratory experiments, further research should be conducted for evaluating the performances of this copolymer in practical application.Practical implicationsThe mechanical test of the rice‐hull‐cement composite proved that CMC‐g‐PMMA is an effective additive for reinforcing the rice‐hull‐cement composite. The synthesis of CMC‐g‐PMMA provides a new alternative for modifying cellulose derivatives.Originality/valueThe CMC‐g‐PMMA obtained in this paper is a new kind of effective agent. It can reinforce the rice‐hull‐cement composite and expands the application of the composite in building industries.