SABIC, founded in 1976, is the third largest chemical enterprise in the world. As the "exclusive technology gathering place" within SABIC group, special materials division is committed to developing advanced technology, solving industry challenges, and promoting global changes in transportation, communication, work and life.
Due to the non crystallinity of polycarbonate, the packing between molecules is not compact enough. The organic solvents of aromatic hydrocarbon and chlorinated hydrocarbon can make it swell or dissolve, which is easy to cause solvent cracking. The alkali resistance is poor.
沙特基础工业公司 (SABIC)是全球的多元化化工企业,总部位于沙特利雅得。SABIC的制造遍布全球,包括美洲、欧洲、中东和亚太地区,产品涵盖化学品、通用以及高性能塑料,农业营养素和钢铁。 SABIC业务遍及全球逾50个国家,拥有约3.3万名员工, 并且在美国、欧洲、中东、东南亚和东北亚这5个关键区域设立创新中心,拥有丰富的科研资源
PC's aging resistance and flame resistance polycarbonate also have good thermal aging properties. If the film is heated in air for a long time, its performance changes little. Polycarbonate is combustible, the flame is light yellow and black smoke; the oxygen index is only 25%, and it will self extinguish when leaving the flame. Generally, halide, antimony trioxide, magnesium hydroxide, phosphoric acid and red phosphorus are added to improve the flame retardancy.
PC耐老化性和耐燃性 聚碳酸酯的耐热老化性能也相当好,若将其薄膜放置空气中长时间加热,其性能变化很小。聚碳酸酯是可燃的,火焰呈淡、冒黑烟;氧指数仅25%,离开火焰自熄。一般加入卤化物、三氧化二锑、氢氧化镁、磷酸和红磷等改性提高阻燃性。
尽管PC具有许多优能,然而由于PC分子链的高刚性和大的空间阻位使其具有较高的熔体粘度,因此加工困难,易开裂,耐溶剂性和耐磨损性较差,因此对PC改性研究成为PC应用研究重要的课题,目前聚合物合金化成为PC改性重要途径,国外已有大量性能优良PC合金投入市场,随着PC合金材料的研究不断进展,PC的应用范围不断扩大,
PC开发前景的应用领域,宽波透光的光学器械,作为一种透明性能良好的工程塑料,PC作为光盘基材在全球大量使用, 不仅可以制备CD、VCD、DVD光盘,还可以适用于高密度记录光盘的基材, PC片材特别适宜于制作眼镜镜片,在PC分子链中引入硅氧基团,可以提高其硬度及耐擦伤性。PC作为高折射率塑料,用于制作耐高温光学纤维的芯材