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TPU PU64DJ∮TPU PU64DJ ‖。PA6 1015B 、→,PP 4944CWZ PPO N300X PA6 8351HS BK 、‖。PP 3052 、‖。PC DFL32P 、→,PPO PX9406-4518(白色) PA66 6210GC 、→,PC/ABS GX70 、→,EPDM G5455 、‖。PC ML-5206ZLS 、‖。PA66 KDE1010 、‖。TPU 2103-90AEFH PBT 5010G-15 BK 、‖。PA6 F130-B 、‖。PP 5720WZ 、→,PA66 91G60 PC/ABS 5001 、‖。PC 8600-7 PMMA DF22 7H 、→,PC/PET EXXX0047 PPS FZ-2100E1035 、→,PEI 2410EPR PC 3262R HDPE DFDC-7525 HDPE JPEHJ221 、→,EVA D3021 、‖。PC 、→,TPV K2000BS 、‖。POM KFL32L PA6 KN133G15HS 、→,PP X4323/3S63 TPU 95A1 、‖。PC/ABS CP8930 HDPE HD5070EA 、→,TPEE S9001 、→,TPEE 5553FG TPU B60AWHTSG 、→,PC/ABS F-101 、‖。POM GC210 、‖。PBT KP515FLBL 、‖。TPE TA7AAA ACS GW180 、‖。TPE TA6TAA PEI EL-4030 PC EF-1050 BK POE LC565 、‖。TPU DP85786A 、‖。PP 7652 COP 1420R 、‖。AS DG-、‖。PP 5707N 、→,TPO 3675 、‖。PP ST861 、→,UHMWPE L2000 、→,氟橡膠 FC2176Z 、‖。PA66 RZ006 、→,LDPE LDF260JG PP 6501A HDPE MP90C PP R1510 POM/PTFE KFX-1002 、‖。TPU UH-71DU20 、→,TPU DP6088A 、‖。PA6T E430NK-T5 BK 、→,LDPE F2200 、‖。PP F603 、‖。PMMA RPControl 7D009 、‖。PP 7530 ABS GP-22 、‖。ABS VE-0860SE ABS HH PA6 V230H3.0 、→,PP 578N 、→,LLDPE M24300 PC XHT2141 BK1C141 PP MF0049I 、‖。PBT 2107G30 PP 1244 、‖。PA66 S223-D 、→,PA66 A3401 、‖。PP MFB71L TPE TF3AAE PP P755JM ASA WE8500 、‖。PPS 758 PC PZ513 PA66 HTNFR52G30NHF 、‖。TPV 9101-55 TPEE KP3363 、→,PP 8620 、‖。PBT 1100-211XG 、‖。 12.5-3.5 PBT B0620FC BK PA6 KN133G20HIBK 、‖。POM H4320PRO 、→,EPDM 2340A 、→,EVA V10H534 、‖。PBT RXW03018 BK PC/、→,LDPE 622A 、‖。PA6 FE270086 、→,EVA 1807G PA6 6GF30HIWIT 、→,TPEE H2040B 、→,PA66 X218V50 PMMA AR PC LUX9616G 、‖。TPE GS6000 、
PP Electrical properties
It has high dielectric coefficient and can be used to make insulating products of electric appliances with the rise of temperature. Its breakdown voltage is also very high, suitable for use as electrical accessories. It has good resistance to voltage and arc resistance, but it has high static electricity, and it is easy to be aged with copper.
Weatherability
Polypropylene is sensitive to ultraviolet light. Adding Zinc Oxide, two propionic acid, two propionic acid, cinnamate, carbon black or similar milk filler can improve its aging resistance.
Calculation of the reference value of hydrophobic parameter (XlogP): 3.32, number 03, number of hydrogen bond donor: hydrogen bond acceptor: 34, number: 15, the chemical bond rotation tautomer number: 6, topological polar molecular surface area (TPSA): 29.5 to avoid strong oxidizing agent, chlorine, Potassium Permanganate closed, cool and dry place save, to ensure good ventilation.
Characteristic
Non-toxic, tasteless, small density, strength, stiffness, hardness of the hardness is better than low pressure polyethylene, can be used at about 100 degrees C. It has good dielectric property and high frequency insulation and is not affected by humidity, but it becomes brittle at low temperature. It is not wearable and aging. It is suitable for making general mechanical parts, corrosion-resistant parts and insulation parts. Common acid and alkali and other organic solvents, it almost does not work, can be used for utensils.
Polypropylene has many excellent properties:
1. The relative density is small. It is only 0.89-0.91. It is one of the lightest varieties in plastic.
2, good mechanical properties, in addition to the impact resistance, other mechanical properties are better than polyethylene, good molding performance.
3, with high heat resistance, the continuous use temperature of up to 110-120 degrees.
4, good chemical properties, almost no water, and the vast majority of chemical drugs do not react.
5, pure texture, non-toxic.
6. The electrical insulation is good.
7. The transparency of polypropylene products is better than that of high density polyethylene.
It has many advantages, but also has shortcomings.
1. The cold resistance of the products is poor, and the low temperature impact strength is low.
2, products are vulnerable to light, heat and oxygen in the use of aging.
3. The pigmentation is not good.
4, easy to burn.
5, poor toughness, high degree of static electricity, dyeability, printing and poor adhesion.
The branched chain atoms of the random polypropylene are irregularly distributed on both sides of the main chain. See Figure three
Polypropylene classification chart three
EVA Increase the impact resistance of ethylene propylene rubber, EPDM, POE, EVA, SBS
Improve transparency LDPE, ethylene propylene rubber, POE
Improvement of pigmented polyamide, polyurethane, polyacrylamide, polyacrylate, polyester, polyvinylidene chloride, polyvinylidene two
Improving gas tightness (gas barrier) polyamide and polyvinylidene chloride two
Improved antistatic polyvinyl alcohol
In the blending modification, we must pay attention to the compatibility between different polymers. When the two polymers with poor compatibility are mixed, third components which are compatible with the two polymers often are called compatibilizer. Such as polypropylene and nylon -6 compatibility is poor, single * machinery force can not mix the two evenly, then add a little like has been grafted with maleic anhydride two polypropylene, maleic anhydride and nylon two because -6 amide groups can occur chemical reaction, it can greatly improve the compatibility of -6 nylon and polypropylene.
In the blending modification, we must notice that only when the heterogeneous system is formed, and the two polymers can be evenly dispersed, can we achieve the desired modification effect.
EBS Packaging materials in plastic products occupy an extremely important position, according to statistics, the world's plastic for packaging accounts for about 35% of the total plastic consumption. The development of packaging plastics in China has been developing rapidly. The output increased from 190 thousand T in 1980 to 4 million 650 thousand T in 2003. It is expected to exceed 5 million 500 thousand T in 2005, over 6 million T in 2010, and more than 6 million 500 thousand T in 2015, accounting for about 13% of the total national packaging output.
Polypropylene film
From the point of view of the product, the packaging film accounts for more than 50% of the total amount of the packaging plastic. The biaxially oriented polypropylene (BOPP) film is one of the largest consumption areas of PP resin in China. In 2003, 86 BOPP production enterprises (123 production lines) were produced in China. The total production capacity is 1 million 400 thousand t/a, and 2 million t/a (138 production lines) in 2004. The output will exceed 1 million T. Domestic enterprises focus on improving product competitiveness, and have introduced a number of advanced BOPP production equipment. The width of the film is 8.3m, and the line speed is as high as 400~500m/min. According to China's existing BOPP film production capacity conversion, the annual demand for PP resin of nearly 2 million T, with high speed, so it should be extended PP special material, good transparency in the development of BOPP films, including attention, ethylene propylene copolymer used in supporting, in order to adapt to the introduction of new equipment of BOPP films.
industrial production
Chinese industry
China polypropylene industrial production began in 1970s, after 30 years of development, has been basically formed and process the production of a variety of solvent, liquid phase bulk gas phase method, batch liquid bulk polymerization and gas phase method, large and small production scale production pattern of coexistence. China's large polypropylene production equipment is mainly imported technology, and the medium and small polypropylene production equipment are mainly made by domestic technology.