TPU 58661部 →，PA12 285F 、‖。PA66 CM3006G45 、→，LLDPE D350 PP 66M10T PC DF002 HDPE 50100 、‖。PP HG385MO 、‖。TPE TF5BNB 、‖。TPV 123-50 、‖。PA6 K224-G6-FC PP C40H451 、‖。PP HJ646 、‖。PC/ABS CX1440 、→，LDPE N2106 EVA N1006HB 、→，PBT 5810G40 、→，TPU C98A 、‖。POM F40 LDPE C600V PP RB709CF 、‖。TPU C90A PA/MXD6 1022H BK(2) 、‖。PC 1303AH-10 PP HJ700 、→，PP 1010 、→，EMA 18MG02 TPE 8291-80TB 、‖。PC G-3110PH 、‖。PC HCG2530HG 、‖。PP 120SLP-2 、‖。PC/ABS CX7240 、‖。TPU D91F88 、‖。PC/ABS TN-7581 、→，PA6 PB321I6 POM KS002E EVA 1328 、‖。TPV 241-80W236 、→，EMA 14MG02 、‖。 MV02514 HDPE LH503 PA6 PX06004 PA66 A4H 、‖。PC K-30/T10 、‖。PP 6145O 、→，LDPE NA324244 PC SR3108FM PP 30ARW PP HA748L PBT X7384 、→，PP HA802H 、‖。PP R360Y 、→，PP BH3720 、‖。PA66 75104A PP P2613GN PBT 412 PC DX03571 PP T710-25 PBT 7307 GY PA66 KN333G15SIBL 、→，POM M140 IXEF 1032 PBT GF50 、‖。TPE TC4MGZ PP K7005 PA66 FE15004 、→，PES 1400A-200Z PC/ABS C7410 PC LF0335 MBS M711 PP HP500P HDPE HI2081 、‖。PP NRD6-589 、‖。PA46 F11 PA12 3030JI8 PP 671K TPEE P-90B TPU 460A PETG 60-2008 ABS H701 POMTR-20-CF2001 PC DE002P PC LD7890 PA66 RV00AESC PP FTP3130 、‖。PPE G702-GX07602 、‖。POM H320 PP SM-546 HDPE H6017 LDPE N2215 PA6 K224-LG6/E 、‖。TPV HX-064AB PBT 295 PC/ABS TN-3715 BX 、‖。PP J704LB 、→，LLDPE SP2020 PBT D202G30 PA6 P1000EI3 PTFE CD145E PP BJ350 、‖。PMMA 45 、‖。PBT TE5000GU 、→，EVA ML20 、‖。PC PC-110 、→，PC/PET EL703 、‖。PA6 P1000J5 、‖。PP BJ550 PC ML3485 PA66 RV00AEU PC MX1021FD 、‖。PC/ABS TN-7000F PP N12N-00 、→，PBT 1500N PBT HR5315HFS 、→，PVDF 2800-20 、→，PP 4712E1 、→，PA6 BKV30H2.0 PBT 2300-GV3/30 、‖。PA12 LV-30HFWABK 、‖。TPE MC715R4 、‖。TPU 1298AU K(Q)膠 PB-5900 、‖。PP 1330 COC 6013F-04 、‖。TPE 7080B|8901 、→，PES RTP1403 、‖。PC BFL2200 、‖。TPE HX-5140UA PBT 3316 TPV X4750B 、→，EPDM 1705 PC H2001R TPU 85ABU TPU UT-98AU10 、‖。PA66 AF219V30 、→，PC FL920 、‖。PPE-14526-31 PC/ABS T90MF 20 PA66 1003-2 PA66 10B40 、 LLDPE The production of LLDPE begins with the transition metal catalyst, especially the type of Ziegler (Ziegler)?or?PHILPS Phillips. A new process based on the catalyst for the cyclic olefin metal derivatives is another option for LLDPE production. The actual polymerization can be carried out in the solution and gas phase reactor. Both LDPE and LLDPE have excellent rheological?or?melt fluidity. LLDPE has smaller shear sensitivity because it has a narrow molecular weight distribution and a short branched chain. During the shear process (for example, extrusion), LLDPE maintains a greater viscosity, and thus is difficult to be processed than the same melting index of LDPE. In extrusion, the lower shear stress of LLDPE makes the stress relaxation of polymer chains faster, and the sensitivity of physical property to the change of blow up ratio is reduced. In the melt extension, LLDPE usually has lower viscosity at various strain rates. That is to say, it will not strain hardening as the LDPE is stretched. The increase in the deformation rate of polyethylene (.LDPE) shows an astonishing increase in viscosity, which is caused by molecular chain entanglement. This phenomenon is not observed in LLDPE, because the lack of long branched chains in LLDPE makes the polymer not entangled. This performance is very important for the application of thin films, because the LLDPE thin films are easy to make thin films under high strength and toughness. Classification /LLDPE LLDPE Atlas According to the type of copolymerized monomers, LLDPE is mainly divided into 3 kinds of copolymers: C4 (butene -1), C6 (hexene -1) and C8 (octene -1). Among them, butylene copolymer is the largest LLDPE resin in the world, while hexene copolymer is the fastest growing LLDPE variety at present. In the LLDPE resin, the typical dosage of the copolymerized monomer is 5% to 10%, with an average amount of about 7%. The metallocene based LLDPE plastic body (mLLDPE) has more than 3 times the average content of the average copolymerized monomer of the traditional LLDPE. Figure 1 shows that the world is 10 years since their 3 monomers yield of LLDPE. At the end of 1984, the co carbon company introduced the production of hexene copolymerized LLDPE, followed by Exxon, Mobil and other companies. Dow Chemical (Dow Chemical Company) almost used octylene as comonomer in its low pressure solution process, and NOVA Canada (Nova chemical) also used octylene in most of the pressure solution process. The copolymerization of octyl LLDPE resin has a little good strength, tearing resistance and processing property, but the properties of hexene copolymerization and octyl copolymers have little difference. Hexene LLDPE resin manufacturers including ExxonMobil Chemical (Exxon Mobil chemical company), Eastman Chemical (Eastman Chem Co), Equistar (star company) and Chevron Phillips (Chevron Phillips chemical company) etc.. In addition, Dow Chemical (Dow Chemical Company), Basell (Basel), Innovene (Samsung, Total, innoven) (Samsung Total (micro-blog), etc.) also produce 1-hexene LLDPE. Compared with the commonly used butene copolymers, the LLDPE produced by hexene and octene as copolymerized monomers has better performance. The largest use of LLDPE resin in film production, with a long chain alpha olefin (such as cyclohexene, 1-octene) as comonomer production of LLDPE resin and film products in the tensile strength, impact strength, tearing strength, penetration resistance, environmental stress cracking resistance and many other aspects are better than by butene as comonomer to produce LLDPE resin. Since 1990s, PE manufacturers and users in foreign countries tend to replace butylene with hexene and octene. It is reported that using octene as comonomer, the performance of resin is not necessarily better than that of hexene copolymerization, and the price is more expensive. Therefore, the trend of using LLDPE abroad to replace butene is more obvious. Because there is no large-scale production of hexene and octene in China, and the import price is more expensive, the LLDPE resin currently used in China is mainly used as butene as comonomer. Some enterprises in China used the LLDPE as the monomer of the comonomer when they introduced the production plant, but they had to give up because of the production of no hexene in China, and only imported a small amount of hexene when driving. Most of the high grade LLDPE imported from China are such products. It is expected that in the future, there will be a greater increase in the demand for LLDPE with 1- hexene as a monomer. Performance /LLDPE Cold tolerance of LLDPE, the relationship between catalytic temperature and melt flow rate of LLDPE brittle temperature than LDPE, HDPE are low, which indicates that the resistance to low temperature. Physical and mechanical properties MDPE molecular structure In the main chain of MDPE molecule, there are 20 methyl branched chains?or?13 ethyl branched chains on the average of every 1000 carbon atoms, and their performance depends on the number and length of branched chain. Copolymerization can increase the link chain between small crystals of its crystal Performance characteristics and parameters MDPE is characterized by long term retention of resistance to environmental stress and strength. The relative density of MDPE is 0.926-0.953, the crystallinity of 70%-80%, the average molecular weight is 200 thousand, the tensile strength is 8-24 MPa, elongation at break of 50%-60%, the melting temperature of 126-135 DEG C, the melt flow rate of 0.1-35 g /10 minutes, the heat deformation temperature of 49-74 DEG C (0.46 MPa). Processing technology It is divided into three kinds: high pressure method, low pressure method and medium pressure method. High pressure method is used to produce LDPE. This method has been developed very early. Polyethylene produced by this method accounts for about 2/3 of the total output of polyethylene. However, with the development of production technology and catalyst, its growth rate has lagged behind the low pressure method. The low pressure method includes slurry method, solution method and gas phase method for its application. Slurry method is mainly used to produce HDPE, while solution method and gas phase method can not only produce HDPE