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PP GD305U酯 →,EVA FL00209 、‖。PP B1101 、‖。PA66 66GF35H 、→,PP QH、→,EVA VF110S PA6 1015GC6 、‖。PP JM-320 、‖。PC GP-2401F TPE TC8MNO HDPE 3H673 TPE TC7PAN 、→,PPE NX-9000 TPV 9101-65 PBT PF701 PP RP348NK PC RZ225 、‖。TPEE SC948 PP R900Y 、‖。PC FXE1414T POM S27072WS10/1570 、‖。PMMA CLG340 、‖。PC FPR3500 BK 、→,LLDPE SC74844 、→,TPC6356 、‖。PC/ABS MC5202 、→,PEEK M2G 、‖。PC/ABS CRC3012 、→,PP 、‖。TPE TC3CHT POM M450 、‖。TPV TX 5173U HDPE F0863 PA66 66MV2 PP C342M6 PC EXL1414 PBT 3390 EVA 3185 、‖。PBT WEF421SP BK PMMA LS600/1 、‖。PC 3107 、‖。PMMA PFE50 PP SFI-553 、→,PP 1100PK 、‖。PC DF202P 、‖。PP HX3800 、‖。PP 560.00 、→,PP 9712 、→,POM N2310P 、‖。PP 670K 、‖。PA12 LV-2ANZ 、→,PP 2030 、‖。PPS EC-10 HDPE HHMTR480AT PC 3027U(7) 、‖。PC 1248 、‖。PP H03W-01 、→,PMMA DF208N 、‖。POM FL-2020 PP K1505 、‖。TPEE 5557 、→,PP BB73GC12719 、‖。TPE HTR5612BK 、‖。PP 7633 PTFE M112(微粉) PA6 LT4060 PA46 HF5050 BK 、→,XLPE XL4201S 、→,PC 8410-15 、‖。TPE TF5WKZ 、→,PP PEE209AE 、→,LLDPE UF315 PA6 610 、→,PA6 BKV130H2.0 TPE HX-055AB TPU 2103-55D PBT 3195 PEI 2210R PP 7143KNE1 、→,EVA 7B60H PBT 2002-2 、→,PP PT3F1 PP BA238A TPU XGT-80 PP 70LT447(WT) 、‖。TPE A1606 、‖。TPU ETE50DS3 、‖。TPE HX-086AB PP H230W 、‖。PBT 9116 TPU DP2790ADPS 、‖。PP R680S PC/ABS TN-3713BX LDPE LD160AS TPU 1195A10R PC/ABS AC2000 PP JM-370 、→,氟橡膠 FG5630Q HDPE HYA 600 LDPE F8101 、→,PMMA BS100 、→,PC/ABS EMI2580.7 PBT WE003ER 、→,POM CF452 、‖。TPU 2090A LDPE 1965Z500 M、‖。POM 300、‖。PA66 REL22 、→,PA66 RX05491 、→,PC/ABS LAY1002F 、→,PMMA VHS PP H7630 PP PR300X PP 3219M3 ABS GH-8 、‖。POM 511DP 、→,PC/ABS 2563FR EVA 670 ABS AX4100 PC/ABS GC-1150 M、‖。PA66 RF008XXH 、‖。TPE 1080N|1002 、
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.