゜PC/ABS宁波台化AC3108***

品牌：进口 产品规格：齐全 产地：广东东莞市 包装说明： CAS/标准: 运输说明：








゜ PC/ABS 宁波台化 AC3108***The glass transition temperature (Tg) is only related to the structure of the molecular chain segment, and has little relationship with the molecular weight. The viscosity temperature (Tf) is the temperature at which the macromolecule starts to move. It is related to the molecular weight. The larger the molecular weight is, the higher the Tf is. Therefore, it is necessary to reduce the molecular weight of the resin properly for some processing (such as injection molding). According to the size of molecular weight, the domestic suspension polyvinyl chloride resin is divided into 1-7 stages, the larger the serial number, the smaller the molecular weight. XJ-4 (XS-4) to XJ-7 (XS-7) type resin is used for the manufacture of cardboard tubes, etc., other types of low molecular weight of the resin is larger, because the Tf is high, need a large number of plasticizer Tf decreased, so it is often used in the manufacture of soft products. The polyvinyl chloride whose average ゜ PC/ABS 宁波台化 AC3108***polymerization degree is less than 1000 is called polyvinyl chloride with low polymerization degree, which has better processability. Plasticizer can be added less during processing, so that products will not accelerate aging due to migration of plasticizer. Low poly degree PVC products have good transparency, widely used in building materials, food and drug packaging materials, and instead of plexiglass
5.PVC general soft products
The extruder can be extruded into hose, cable, wire, etc., and the injection molding machine is used for various moulds. 7. PVC parapet and floor
At present, the total demand for modified plastics in China is about 5 million tons, accounting for about 10% of the total plastic consumption, and its proportion is far below the world's average. Compared with the developed countries, there is a big gap between the per capita plastic consumption in China and the developed countries in the world. In order to realize the rapid and steady development ofChina's modified plastics industry, innovation technology is the key point for the future development.650
The chemical industry analysts believe that China modified plastics industry overall level of development is not very high, generally small scale of production enterprises in the industry, primary products market out of many, the intermediate product quality is not stable enough, the lack of features of advanced products, far can not meet the needs of the social economic development in china. As an important part of the field of new chemical materials, the modified plastic has been one of the key scientific and technological fields developed by the state. China's various policies will further promote the development of the plastic industry. The automobile and household electrical appliances industry is the hot spot of the development of the modified plastic, which accounts for more than 50% of the two.
Plastics have been used in the automotive industry for more than 50 years. With the development of the light and energy saving direction of the automobile, the material has put forward higher requirements. Because 1kg plastics can replace the heavier materials such as 2-3kg steel, the car weight can be reduced by 10% and the fuel consumption can be reduced by 6%-8%. So the increase of the amount of modified plastic in the car can reduce the cost and weight of the vehicle, and achieve the effect of energy saving. The different amount of plastic used in the passenger car and the commercial vehicle is different. The demand for modified PP, PC alloy and modified ABS last year was about 114.63, 15.13 and 149 thousand and 700 tons, respectively. The market of the modified plastics used in China's household electrical appliances is mainly occupied by foreign enterprises, and the domestic modified plastics enterprises have a market share of less than 1/3. Because the products of domestic enterprises are mostly limited to low technology content and low standard level, so the ability of developing areas with high performance demand is obviously insufficient.
According to the market analysis and Investment Value Research Report of China's modified plastics industry in the past 2009-2012 years, with the improvement of people's living standard and the improvement of technological means, "plastic replacing steel" and "replacing wood with plastic" will become a trend in China. As the fastest growing and developing potential sub class industry in plastic processing industry, the modified plastics industry is expected to grow more than 10% of the total market demand in the next 5 years.
1.PVC plastic generation of steel materials
Through the research on the modification of PVC technology, with foreign advanced technology and internal plastic additives, so as to ensure the mechanical and electrical properties of PVC steel, improve the flame retardant performance, so that the product has high strength, corrosion resistance, flame retardant, good insulation performance and light weight, convenient construction and other advantages in. The electrical wiring system can completely replace the steel tube General PVC identification methods are generally summed up in the following three categories, namely:
(1) identification of combustion method: