科思创PC 9425

科思创PC 9425---Polycarbonate PC is also a kind of material used for laptop shell. Its raw material is petroleum. After being processed by polyester chip factory, it becomes polyester chip particles, and then processed by plastic factory to become finished products. From the practical point of view, its heat dissipation performance is better than ABS plastic, and the heat dispersion is more uniform. Fujitsu is one of the most remarkable materials used in many models, and the whole shell is made of this material. Whether from the surface or from the feeling of touch, pc-gf - ා material feels like metal. If there is no logo in the laptop, you may think it is alloy if you don't observe it carefully from the outside surface.

科思创PC 9425物性：

Physical performance - Rating - unit system - Test Method
Density (23 ° C) 1.34 g/cm 3 ISO 1183
Apparent density 1 0.64 g/cm 3 ISO 60
Melt flow rate (melt flow rate) (300 ° c/1.2 kg) 6.0 g/10 min ISO 1133
Volume flow rate of dissolution (MVR) (300 ° c/1.2 kg) 5.00 cm 3 /10min ISO 1133
Shrinkage
Vertical flow direction 0.30 to 0.50% ISO 2577
Flow direction 0.30 to 0.50% ISO 2577
Vertical flow direction: 2.00 mm 2 0.45% ISO 294-4
Flow direction: 2.00 mm 3 0.35% ISO 294-4
Water absorption ISO 62
Saturated, 23 ° C 0.24% ISO 62
Balance, 23 ° C, 50% RH 0.10% ISO 62
Hardness rating unit system test method
Ball pressure hardness 148 MPa ISO 2039-1

目前世界聚碳酸酯工业发展呈现两大特点，一是生产更趋集中和垄断，德国拜耳公司、美国GE化学公司、道化学公司及13本帝人公司四大公司的生产能力占世界总生产能力的80％左右，其中通用电气、拜耳、陶氏化学和日本帝人公司，其装置能力分别占2000年世界总生产能力的35%、31%、9%和9%。这几大公司控制着世界聚碳酸酯的生产技术，主宰着世界聚碳酸酯市场。