〒AES HW500E゜ ‖。PP 、→，PC 2407MAS145 PP JSS-370N 、→，GPPS K-4-L-01 、‖。PA46 TW250F6 BK 、‖。PA6 GP2259AFL HDPE K8800 PP BB412E PC HF3000HG20 HDPE HDKL281A PA9T NT048 BK PC DX92002 PC LQ-2847 HDPE PE F120A PA66 A45L-1 AS 550050 、‖。ASA HRA222 ABS 200 、→，LDPE 1018、→，MDPE M4043UV PP PH-200 TPU DP3055D TPV 4765B40 、‖。PC 243R-111 、‖。PP 4069 PC HFR1900CR010 、‖。PBT B1700 、→，PC 3025U-H HDPE B5845 、→，TPX RTP3040 、‖。PA6 V-115 POM UR304 PP EP300L HDPE HHM5502LW(粉) 、‖。PP HP622J 、→，PVDF FR905 POE 8480 、‖。PC ET3117 、‖。PP -MC-K1 、‖。PPS G531F3 、‖。PBT WF1003 、‖。PMMA SR8500 、‖。PPO GTX918WR TPV UN-7010-80NT 、‖。PA6 JW21 、→，PC CF-1051 、→，PP J-452H POE 8200 、‖。PP R7700 、→，PPS 0220A9 LDPE LD358 、→，LDPE 2017 、→，PA66 ST801A POM KL005 EVA 9F2 PP 1200X 、→，POE NXK91201 、‖。PA66 KN333G30 、‖。PP FH51 PA66 KN333G30BL BK PPO PX1712 、→，PTFE XL PMMA IH830HR 、→，PC LGK4030 PP EP640R 、‖。PC 103R-111 、→，LDPE EB-853/72 、‖。PBT VC108 、→，PBT KP515G30WBL 、→，EVA 53008 PA6 7331J LCP A130-VF2001 、→，PP RP329N PBT T06204XL 、‖。TPE G7670-1 、→，LLDPE M735 PP 7632 、‖。PPX-7110 、→，PC 2800 、‖。PBT 2000 、‖。PC LD7800 TPV 4370BK LDPE R300 、→，TPEE BT-1035D 、→，LDPE 2208 、‖。PMMA HP-202 、‖。PP 9550T30 、‖。PA6 V50H3.0 、‖。PC/ABS FR3008 、→，PC/ABS HR-5009A PBT 5010GN1-15-BK 、→，LLDPE JL210 、→，EEA DPDJ-9169 、‖。PC DFL32P 、‖。TPV 201-55W255 、→，SEPS G1650M 、→，EPDM 3760P ABS HGX-4300 、‖。ABS TR-530F 、→，PP HT320E 、‖。POM MT754 PMMA ZK6HC 、‖。PP 3219M3 PC FXD103R PP K9935 PP RE718CF ABS VW803 、‖。TPU A92E4670 、→，PC/ABS GN5001RFP 、→，TPX DX845 、→，SEBS 3151 HDPE K44-11-128 、→，LDPE HP2023J 、 GPPS(1) slurry method. Polymerization in diluents (such as hexane) is the earliest industrialization and the most productive method so far. (2) liquid phase noumenon method. Polymerization in liquid propylene under the condition of 70 C and 3MPa. (3) gas phase method. Polymerization of propylene under the condition of gaseous state. The latter two methods do not use diluent, the process is short, and the energy consumption is low. Liquid ontology method has shown the advantages of catch up from behind. Molding characteristics (1) physical properties: PP is a non-toxic, tasteless and highly crystalline white polymer. It is one of the lightest varieties of all plastics, and is particularly stable for water. The water absorption of 14h in water is only 0.01%. The molecular weight is about 8~15 million, and its formability is good. However, because of the large shrinkage, the original wall products are easy to sag, the gloss of the product surface is good, and it is easy to color. (2) mechanical properties: PP has high crystallinity and structure, so it has excellent mechanical properties, and its strength, hardness and elasticity are higher than that of high density PE (HDPE). The outstanding feature is bending fatigue resistance (7 * 10^7), opening and closing, bending and bending without damage trace, dry friction coefficient is similar to nylon, but it is not as good as nylon when oil is lubricated. (3) thermal performance: PP has good heat resistance, the melting point is at 164~170 C, and the product can be sterilized at the temperature above 100 degrees C. Under the action of external force, it is not deformed at 150. The embrittlement is -35 C, and the brittleness will occur at lower than -35 C, and the heat resistance is not as good as PE. EMA In recent years, the household electrical appliance industry in China has developed rapidly, with many varieties and large output. In 2003, there were 18 million 500 thousand refrigerators in our country, 42 million air conditioners, 17 million washing machines and 35 million microwave ovens. According to the research consultation report of China's urban family theater market in 2004~2006, it is estimated that the market scale of China's home theater system will reach 6 million 900 thousand in the next 3 years. In addition, a variety of small household appliances also have a huge potential market, which is an excellent business opportunity for the modified PP. Some manufacturers of plastic raw materials in China have developed special materials for washing machines, such as PP 1947 series, K7726 series and so on, and have been welcomed by the manufacturers of washing machines. Therefore, in the next few years, we should strengthen the development of PP special materials for household appliances in order to meet the demand of market change. Plastic pipe In 2003, the total output of plastic pipes in China broke through 1 million 800 thousand T, up 23% from the same period. In the early days, PP pipes were mainly used as agricultural water conveyance pipes. However, due to the early performance of products, there were still some problems (such as poor impact strength and poor aging resistance), and the market could not be opened. With the Shanghai plastic building materials factory the first introduction of foreign advanced technology, the transportation of imported PP-R material production of cold and hot water in the pipe has been recognized by the market, many manufacturers have the construction of PP-R pipe production line, the price from the initial production of 20 thousand ~3 million /t continue to decline, but the share of PP-R pipe material in the plastic pipe market. Is still low. It is reflected that there is a gap between the domestic PP-R materials and the imported materials, and the quality needs to be improved and improved. According to reports, South Korea has developed a new brand of PP-R 112, a high pressure resistant water supply pipe. The pipe produced by this brand can be used for 50 years under the condition of ultra-high pressure of 20 and 11.2MPa. The plastic pipe is one of the application of chemical building materials in China's key products, the Ministry of construction in 2001 had issued "on the strengthening of copolypropylene (PP-R, PP-B) circular pipe production management and application work, asked relevant departments to jointly do a good job from raw materials, processing, quality and material use, installation and other work, to strictly control PP the quality of the pipe materials, in order to do a better job in China PP pipe production, application and promotion work. High permeability material