描述
聚对苯二甲酸丁酯PBT芯片
产品：聚对苯二甲酸丁酯PBT芯片
颜色：天然颗粒和黑色
包装：25kg/袋
聚对苯二甲酸丁二醇酯PBT芯片
产品细节
改性PBT（聚叔丁基二酯）因其优异的阻燃性、高耐热性、易加工成型、耐有机溶剂性好而广泛应用于电子电器、家用电器、汽车等领域。“电力安全卫士”。PBT的分子结构如图所示。它可以从分子结构上进行研磨。PBT大分子具有线性结构和规则结构。在重复结构单元中存在难以移动的苯环和极性酯基。形成共轭体系，连接分子骨架，错开分子链的柔韧性、溶解性和吸水性。极性酯基和羰基的存在增加了分子间作用力，使分子更紧密，并增强了分子链的刚性。在高温下，酯基容易转化和断裂，从而影响聚合物的性能。结构单元中也有4个非极性亚甲基-（CH2），比PET高2，分子链的柔性增加，分裂更规则，因此材料的结晶能力比PET高。它快速且易于处理
关于聚对苯二甲酸丁二醇酯PBT芯片，请随时与我们联系 Product : Polybutyl Terephthalate PBT Chips Color : Natural granules & Black ColorPolybutyl Terephthalate PBT Chips
Package : 25kgs/bag
Polybutyl Terephthalate PBT Chips
Product Details
Modified PBT (poly-tert-butyl diester) is widely used in electronic appliances, home appliances, automobiles and other fields because of its excellent flame retardancy, high heat resistance, easy processing and molding, and good resistance to organic solvents. “Guardian” of electricity safety.The molecular structure of PBT is shown in the figure. It can be ground from the molecular structure. PBT macromolecules have linear structure and regular structure. There are difficult to move benzene rings and polar ester groups in the repeating structural units. A conjugated system is formed, which connects the molecular skeleton and staggers the flexibility, solubility and water absorption of the molecular chain. The presence of polar ester groups and carbonyl groups increases the intermolecular forces, makes the molecules closer together, and strengthens the rigidity of the molecular chain. At high temperatures, the ester group can be easily transformed and broken, thereby affecting the performance of the polymer. There are also 4 non-polar methylene groups-(CH2)-in the structural unit, 2 more than PET, the flexibility of the molecular chain is increased, and the division is more regular, so the crystallization ability of the material is higher than that of PET. It is fast and easy to process.
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