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.
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。
SABIC is the world's leading diversified chemical company, headquartered in Riyadh, Saudi Arabia. SABIC has manufacturing facilities all over the world, including the Americas, Europe, the Middle East and the Asia Pacific region. Its products cover chemicals, general and high performance plastics, agricultural nutrients and steel. SABIC has operations in more than 50 countries around the world, with about 33000 employees, and has set up innovation centers in five key regions, namely, the United States, Europe, the Middle East, Southeast Asia and Northeast Asia, with abundant scientific research resources
PC电性能: 聚碳酸酯的分子极性小、玻璃化转变温度高、 吸水性低,因此具有优良的电绝缘性能,接近或相对于向来被认为电绝缘性能优良的PET。聚碳酸酯的电绝缘性与温度、湿度、电场频率和制品厚度密切相关。
PC electrical properties: polycarbonate has low molecular polarity, high glass transition temperature and low water absorption, so it has excellent electrical insulation performance, which is close to or relative to pet which has been considered as excellent electrical insulation performance. The electrical insulation of polycarbonate is closely related to temperature, humidity, electric field frequency and product thickness.
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**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
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