阀座PBT.3020ΦLCPˉE6808LHFPBTˉ462PPˉ5405EAA/LX4110 PC/ABS 基础创新塑料 EXTC8081TPE TC8FLN PA66基础创新塑料(南沙)RF00AS-BK LCP美国杜邦6130LX-WT010 TPE德国胶宝TC9GPNPP/9422-67728PCˉSP7602POMHI525LPPA/R1035POM 300ASPMMA CLH952PA6ˉPF004EUC LDPE伊朗石化LF0250/KJTPE E1080A POMFW700S PPO 旭化成 540ZPC/ABSCF407TPE KP3547 PC/ABS 上海科思创（拜耳） T88GF30 PP大林HP450CPP D7030EZPOMN115-LDEEA/NUC-6220PPS P-6(粉)PBT TV4241SNPP C600H2 TPU德国亨斯迈85AEPP 5050MTPU 1185A10X PA12 瑞士EMS TRVX-50X9PP 28LLG-202EVA H900BPC 4701-7000PP 12222 PBT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.