描述

非PVC原料颗粒

PVC改性塑料树脂颗粒
中国非PVC工程塑料制造商/供应商，
护目镜用PVC
非PVC原料颗粒这些静脉输液袋的医用级

非PVC原料颗粒

产品详细信息

PVC是一种白色粉末，具有无定形结构。分枝的程度相对较小。相对密度约为1.4。玻璃化转变温度为77-90°C。在170°C左右开始分解。[1]对光和热的稳定性较差。在长时间暴露于阳光下后，它会分解生成氯化氢，并进一步自动催化分解，导致变色，物理和机械性能也会迅速下降。在实际应用中，必须添加稳定剂以提高热稳定性和光稳定性

工业生产的PVC的分子量通常在50000到110000之间，具有较大的多分散性，并且分子量随着聚合温度的降低而增加；在没有固定熔点的情况下，它在80～85℃开始软化，在130℃变为粘弹性，160～180℃开始变为粘性流动状态；具有良好的机械性能，拉伸强度约60MPa，冲击强度5~10kJ/m2；具有优异的介电性能

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Non PVC Raw Material Granules

PVC Modifed Plastic Resin Granules
NON-pvc Engineering Plastic manufacturer / supplier in China,
PVC for goggles.
Non PVC Raw Material Granules Medical Grade Of These Iv Infusion Bags

Non PVC Raw Material Granules

Product Details

PVC is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77-90 ° C. It begins to decompose at about 170 ° C. [1] The stability to light and heat is poor. After prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further automatically catalyze the decomposition, causing discoloration, and the physical and mechanical properties also rapidly decline. In practical applications, stabilizers must be added to improve the stability of heat and light.

The molecular weight of industrially produced PVC is generally in the range of 50,000 to 110,000, with a large polydispersity, and the molecular weight increases with the decrease of the polymerization temperature; without a fixed melting point, it begins to soften at 80 to 85 ° C and becomes viscoelastic at 130 ° C , 160 ~ 180 ℃ began to change to a viscous flow state; has good mechanical properties, tensile strength of about 60MPa, impact strength of 5 ~ 10kJ / m2; has excellent dielectric properties.

PVC used to be the largest general-purpose plastic in the world, and it is widely used. It is widely used in construction materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foam materials, sealing materials, fibers, etc.

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