PP Y1500广州金发Y1500A熔喷口罩专用料

PP Y1500广州金发Y1500A熔喷口罩专用料

聚丙烯-均聚合物:

供应PP PT182: 主要特性：MFR=0.4特性：可加工性良好，抗撞击性能高， FDA认证，用途：杯子，片材，支架托盘，管道系统，热成型容器；

供应PP 6524: 主要特性：MFR=3.6特性：良好的耐老化性能，耐气候性良好，抗溶解性，耐化学性良好，FDA认证，用途：电器用具，鼓，汽车领域的应用；

聚丙烯-耐冲击共聚合物:

供应PP 7871: 主要特性：MFR=70,FM=10500 特性：射出成型（薄壁射出，汽车车品，家电品）；

供应PP 7633: 主要特性：MFR=2,FM=13100 特性：射出成型，板，管，瓶；

供应PP 7633U: 主要特性：MFR=2,FM=10300 特性：射出成型，板，管，瓶；

供应PP 7633-3: 主要特性：MFR=3,FM=13300 特性：射出成型，板，管，瓶，家具；

供应PP 7533: 主要特性：MFR=5,FM=14600 特性：射出成型（电池盒，汽机车品，家电品）；

供应PP ST031: 主要特性：MFR=15,FM=13600 特性：射出成型（汽机车品，家电品）；

供应PP ST751: 主要特性：MFR=32,FM=10500 特性：射出成型（薄壁射出，汽车车品，家电品）；

PP成型性能

结晶料，吸湿性小，易发生融体破裂，长期与热金属接触易分解. 　　

流动性好，但收缩范围及收缩值大，易发生缩孔.凹痕，变形.

冷却速度快，浇注系统及冷却系统应缓慢散热，并注意控制成型温度.料温低方向方向性明显.低温高压时尤其明显，模具温度低于50度时，塑件不光滑，易产生熔接不良，留痕，90度以上易发生翘曲变形

塑料壁厚须均匀，避免缺胶，尖角，以防应力集中特定条件下容易分解。常见制品：盆、桶、家具、薄膜、编织袋、瓶盖、汽车保险杠等。 　　

Huayun plastic company PP performance and advantages: 1. PP Resin is a white waxy solid with a very low density between 0.89 and 0.92 G / CM3. PP is light in the plastic material except for 4--1-ene (P4MP) . Polypropylene has good comprehensive properties, abundant raw materials, simple production process and low price. PP mechanical properties and polyethylene, its strength, stiffness and hardness are relatively high, good gloss. But it&＃39;s still low in plastic. If you need high strength, you can choose high-crystalline polypropylene or filled, reinforced polypropylene. The impact strength of PP is temperature dependent, and its impact strength is low, especially at low temperature. The impact strength of PP is also related to molecular weight, crystallinity and crystal size. 2. PP has high crystallinity and regular structure, therefore, it has excellent mechanical properties, its strength and hardness, elasticity are higher than Dhpe, but at room temperature and low temperature, because of its high molecular structure, so the impact strength is poor, when the molecular weight increases, the impact strength also increases, but the processing performance becomes worse, polypropylene also has excellent bending fatigue resistance, its products can be bent 106 times at room temperature without damage. 3. PP has good heat resistance, melting point at 164170 degrees, the product can be more than 100 degrees temperature disinfection, in the case of no external force, 150 degrees do not deformation, embrittlement temperature-35 degrees, in less than-35 degrees will occur embrittlement. 4. PP has excellent high-frequency insulation performance, because it almost does not absorb water, insulation performance is not affected by humidity, it has high dielectric, and with the rise of temperature, it can be used to make heating electrical insulation paper products.