阻燃PC德国拜耳6557(抗紫外线)PC6557 6557
阻燃PC德国拜耳6557(抗紫外线)PC6557 6557
PC产品的概述
聚碳酸酯英文名称为po1ycarbonte,简称PC(以下简称pc)。它是一类分子链中含有聚碳酸酯结构的高分子化合物以及它为基质而制得的各种材料的总称。按分子结构中所带酯基不同可以分为脂肪族,脂环族,芳香族和脂肪-芳香族等几大类型。并以双酚A型聚碳酸酯为最重要,分子量通常为3-10万。在无特别说明情况下,通常所说的聚碳酸酯都指双酚A型聚碳酸酯及其改性品种。
德国拜耳PC 6557 中粘度易脱模阻燃V-0 查看详情
德国拜耳PC 6555 阻燃V0中粘度 查看详情
德国拜耳PC 6485 阻燃VO 查看详情
德国拜耳PC 6457 阻燃VO 查看详情
德国拜耳PC 6265 阻燃VO 查看详情
德国拜耳PC 6555 阻燃VO 查看详情
德国拜耳PC 6557 阻燃VO 查看详情
作为五大工程塑料中的透明产品,PC是一种非晶体工程材料,具有特别好的抗冲击强度,热稳定性,光泽度,抑制细菌特性,阻燃特性以及抗污染性。PC的缺口冲击强度非常高,并且收缩率很低,一般为0.1%~-0.2%。PC有很好的机械特性,但流动性较差,因此这种材料的注塑过程比较困难。在选用何种品质的PC材料时,要以产品的最终期望为基准。如果塑件要求有较高的抗冲击性,那么久使用低流动率的PC材料,这样可以优化注塑过程。
德国拜耳PC 3103 抗紫外线,高粘度,中高分子量,注射或挤塑成型; 查看详情
德国拜耳PC 3105 抗紫外线,高粘度,中高分子量,注射或挤塑成型; 查看详情
德国拜耳PC 3208 高粘度,高分子量,挤塑成型,耐冲击,FDA认可 查看详情
PC产品的特性
1.物化性能
纯pc树脂是一种无定形,无味,无嗅,***,透明的热塑性聚合物,分子量一般20000~70000范围内,相对密度1.18~1.20,玻璃化温度140~150度,熔程220~230度。聚碳酸酯具有一定的耐化学腐蚀性,耐油性优良。
由于聚碳酸酯的非结晶性,分子间堆砌不够紧密,芳香烃,氧化烃类有机溶剂能使其溶胀或溶解,容易引起溶剂开裂现象。耐碱性较差。
Huayun Plastic Company 2. Mechanical Properties, polycarbonate's mechanical properties are excellent, especially its impact strength and dimensional stability, it can still maintain high mechanical strength in a wide temperature range, its disadvantages are poor fatigue strength and wear resistance, stress cracking is more likely to occur. (1). Impact Strength: The impact strength of polycarbonate is outstanding in general engineering plastics and all thermoplastic engineering plastics, and its value is similar to that of 45% glass fiber reinforced PET. The main factors affecting the impact strength of polycarbonate include molecular weight, notch radius, temperature and additives, etc. . (2). CREEP RESISTANCE: the Creep Resistance of polycarbonate in thermoplastic engineering plastics is quite good, even better than nylon and pom. The size change and cold flow deformation caused by water absorption are very few. This is an important sign of its good dimensional stability. (3). Fatigue strength: Polycarbonate has poor resistance to cyclic stress cycling. (4). Wear Resistance: compared with other engineering plastics, polycarbonate has higher friction Coefficient and poor wear resistance.