PET material modification method-film supplier

by:POLYVA     2021-12-08
Filling modification of PET is one of the most direct and effective ways to use inorganic components that are completely different from the properties of the polymer matrix to comprehensively improve the performance of the material. Nano-particle modified PET At present, the research of using nano-particles to modify PET composite materials has been very mature. Ke et al. modified PET with layered clay, and obtained PET/clay nanocomposite by intercalation polymerization. The results of the study show that when the clay content is 5wt%, the thermal deformation temperature of the composite material is increased by about 20℃~50℃ than that of pure PET; and the modulus of the composite material is increased by about 2 times compared with that of PET. Compared with nano-particles, glass fiber modified PET has outstanding advantages in cost and controllability. Therefore, it is widely used to fill modified polymer materials. The blending modification of PET will form a polymer with new properties by melt blending two or more polymers including PET in an appropriate ratio under certain conditions such as temperature and shear stress. Alloy or blend. The compatibility between polymers is the key to the preparation of such polymers. Polyolefin-modified PET PET and PE have obvious differences in chemical structure and are not compatible. From the study of simple binary blending of the two, it is found that to improve the impact performance of PET through polymer blending modification, the compatibility of the two must be improved through compatibilization. In the blending system of HDPE and PET, the impact strength of adding EVA and EAA system is improved. By blending PET and PP, the alloy formed has the advantages of both at the same time, which improves the performance. For example, PET can improve the heat resistance of PP, and PP can reduce the sensitivity of PET to moisture. In the absence of a compatibilizer, when PET and PP are blended, the combination of the two-phase interface is weak and the mechanical properties are also poor. Polyester modified PETPBT is a new type of engineering plastic that developed rapidly in the 1970s. Its mechanical properties are better than PET, and it has good toughness and can be molded, but its heat resistance and fluidity It is not as good as PET, and the price is higher. According to a report by Teijin, adding 0.5% talc as a nucleating agent to the blend of the two, the resulting blend has good impact resistance and low molding shrinkage. Elastomer toughened and modified PETABS is one of the most widely used polymers at present. It not only has good toughness, but also has better comprehensive properties than HIPS. Blending PET and ABS can improve the impact strength of PET. In the study, it was found that the relative molecular mass of PET in the blend is very sensitive to the processing temperature, and the hydrolysis of the PET chain is related to heat and residual catalyst impurities in the ABS. The reduction of the relative molecular weight of PET will cause a huge loss of impact performance and ultimate elongation, and has no effect on modulus and bending strength. It is a company specializing in the production of PET film with multiple functions, such as: transparent PET film, milky white PET film, release PET film, supply of PET motor film, etc. With a wide variety of products, affordable prices, and environmental protection, we provide customers with excellent quality and service based on the service tenet of excellence in production, honesty and trustworthiness in distribution, and warm and thoughtful service. Interested parties welcome to inquire! Contact: Wen Feng 13728425799
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