PP K1215 / PP 3602 PPS C-220SGPC/8210-10ASA/WG1800PC 241R-111ETFE EC-6519(粉)PP MFXL-4036HSPA66/21ZPCˉML4506PP R300HPCˉ3022IR(T)PP MD000PA12 TR55LZTPU 65AKPC L-1225YPC DE004ERPPMMA/MG100PC EXL1414PPˉRX3700PPˉPD0101PC/ADX1016RTPV 111-64PA6/BG-25SPC GS3010SR-9001 EAA美国陶氏3004PA11/BMV PP韩华道达尔BJ730 BKTPEˉ302PMMA ZK-M/ZK-5LCP 3400-G-430TPE SJ5400TPE BT-3055DPBT LW685FRPP/EPS30RPBT 419 PA66法国罗地亚A218V20PBT HR5315HFSTPV 4775B40TPEˉS2002PBT中文名称聚对苯二甲酸丁酯，简称饱和聚酯，系高结晶性热可塑性塑料。
PBT Chinese name is butylbutylene terephthalate, which is called saturated polyester, and is of high crystallinity thermoplastics.
优点：1、机械性质安定抗张强度与抗张模量和尼龙相似；2、系数小有自润性；3、吸水率低；4、电气性质优良；5、尺寸安定性良好；6、耐性、耐油性。用途：1、电子电器：无熔线断电器、电磁开关、驰返变压器、家电把手、连接器、外壳等；2、汽车：车门把手、杆、分电盘盖、挡泥板、导线护壳、轮圈盖等；3、工业零件：OA风扇、键盘、钓具卷线器、零件、灯罩等。
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EVA 1、***含量在5%以下的EVA，其主要产品是薄膜、电线电缆、LDPE改性剂、胶粘剂等；2、***含量在5%~10%的EVA产品为弹性薄膜等；3、***含量在20~28%的EVA，主要用于热熔粘合剂和涂层制品；EVA是由LLDPE（线性低密度聚）和醋酸（VA）共聚而成。
EVA 1, EVA with ethylene acetate content below 5%, its main products are film, wire and cable, LDPE modifier, adhesive and so on; 2, ethylene acetate content in 5%~10% EVA product is elastic film, 3, ethylene acetate content in 20~28% EVA, mainly used in hot melt adhesives and coating products; EVA is from LLDPE (linear low density) Polythene) and acetic acid (VA) copolymerization.
LLDPE也是通过化学改性得来的。它是在聚合中引入丁烯、、辛烯等少量的a-烯烃类单体而形成的共聚物。它具有与HDPE类似的分子构型，但了密度和结晶度。LLDPE有良好的耐应力开裂性，其机械性能也优于LDPE，因此，其应用范围也相应地扩大了。而氯化聚（CPE）也是化学改性的产物。
LLDPE is also chemically modified. It is a copolymer formed in ethylene polymerization by introducing a ***all amount of a- olefin monomers, such as butene, hexene and octene. It has a molecular configuration similar to HDPE, but reduces the density and crystallinity. LLDPE has good resistance to environmental stress cracking, and its mechanical properties are superior to LDPE. Therefore, its application scope has expanded correspondingly. Chlorinated polyethylene (CPE) is also a product of chemical modification.
HDPE通过氯化后的产物。氯（CL）部分取代HDPE分子中的氢（H），使分子受到结晶性，从而使它更，并有一定的弹性。它不仅可以用挤出或注塑等加工成CPE制品，广泛用于建筑、电器等方面，而且CPE本身成为一种优良的改性剂，可以通过物理共混的PE材料的阻燃性和PVC材料的抗冲击性。
HDPE passes the product after chlorination. Chlorine (CL) partially replaces the hydrogen (H) in the HDPE molecule, causing the molecules to be destroyed by crystallization, it softer and more flexible. It can not only be processed into CPE products by extrusion or injection molding, but also widely used in c***truction and electrical appliances, and CPE itself becomes a fine modifier. It can improve the flame retardancy of PE materials and the impact resistance of PVC materials by physical blending.