Abstract
The mixtures containing polypropylene are used in the industrial sector as material for bags, chairs, household items, and can even be used in cell phone batteries. The interest in creating this material is due to its low density compared to more common materials such as iron and ceramic, in addition to its good corrosion resistance and reasonable mechanical properties in environments without high temperature and pressure. In order to diversify the mechanical and viscous properties, different types of polymers were used, such as lactic polyacid, which has beneficial properties for recycling such as degradation. It is a challenge to control the right proportion and use additives and plasticizers to control the desired properties. The methods used to measure the properties of polypropylene and polylactic acid mixtures with different types of additives, compatibilizers and plasticizers were DMA, TGA, tensile, DSC and rheology tests following ASTM standards. The results were promising, observing different mechanical and viscosity properties for the PP/PLA/PP-g-MA/D mixture in different proportions. Thus concluding that the different products have varied application in the industry.
Highlights
The preparation of polymer blends, that is, polymer blends, becomes an increasing challenge due to the difficulty of compatibility between polymers
It can be observed that there was a decrease in the modulus of elasticity for materials with the plasticizer, which may cause the good flexibility of the material
For the values of Tan δ, it can be said that the material suffered a decrease in the glass transition temperature, proving the plasticizing effect, increasing the flexibility of the chain, whereas the PP/PLA and PP/PLA/PP-g-MA mixtures obtained the higher values of Tan δ, as causes the effect of the bonds between PP-g-MA Drapex and PLA, making the material with stronger bonds and less flexible (INSTRUMENTALS, 2018)
Summary
The preparation of polymer blends, that is, polymer blends, becomes an increasing challenge due to the difficulty of compatibility between polymers. According to Utracki (1989) compatibilization depends on the crystal structure, chemical bond, configuration, phases present, among others. For Groeninckx (2006), multiphase mixture materials are strongly dependent on two parameters: interface control and morphology control. According to Utracki (1989), polymeric mixtures constitute about 36% by weight of total polymer consumption. There are many related benefits such as: (i) Provide materials with desired properties at the lowest price; (ii) Understand and improve engineering performance; (iii) Improve specific properties such as impact resistance or solvent resistance; (iv) Provide alternatives for recycling and other means of reuse. Being able to benefit the manufacturer in; (i) improved processability, a uniform product and scrap reduction; (ii) Rapid changes in formulation; (iii) Plant flexibility and high productivity; www.nucleodoconhecimento.com.br
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