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| No.7903249
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Information Name: | Supply PVC30 degrees -120 degrees |
Published: | 2010-12-25 |
Validity: | 999 |
Specifications: | 30 degrees -120 degrees |
Quantity: | 0.00 |
Price Description: | Power Conference |
Detailed Product Description: | 1. Is the main component of plastic raw materials plastic raw materials resin 2: is a synthetic polymer resin (polymer) as the main ingredient into a variety of auxiliary materials or additives, at a specific temperature, pressure plasticity and fluidity, can be molded into a certain shape, and under certain conditions, to maintain the same shape of the material. 3. polymers: polymerization process that produces pure materials or polymeric materials, said. Whether natural or synthetic resin co-polymer resins are polymers, referred to as high polymer. 4. Plastic on the electricity, heat, sound insulation has good: electrical insulation, arc resistance, insulation, sound insulation, sound absorption, vibration absorption, noise reduction performance. most of the plastic raw material is extracted from some oil out, the most familiar part of the PC material is extracted from petroleum, PC material, when the existence of a burning gasoline; ABS is extracted from the coal out, ABS, when the burn will exterminate was soot-like ; POM is extracted from natural gas, POM, when the burn will be an extremely foul smell of gas. A. General characteristics of plastic raw materials plastic raw materials, thermal expansion, linear expansion coefficient is much larger than the metal; b. the general stiffness of the plastic material of a magnitude lower than metal; c. The mechanical properties of plastic materials under heat in a long time will be significantly decreased; d . General plastic materials at room temperature and below its long-term yield strength of the force under stress, there will be a permanent deformation; e. damage plastic materials are sensitive to the gap; f. The mechanical properties of plastic materials are usually much lower than the metal, but Some composite materials specific strength and specific modulus than metals, if the product design is reasonable, since it can bring the advantages will be; g. generally enhance the mechanical properties of plastic raw materials of the opposite sex; h. Some plastic materials will absorb moisture, and cause changes in size and performance; i. Some plastic is flammable; j. plastic materials fatigue data is still small, need to be considered according to requirements. Classification of plastic raw materials plastic raw materials in accordance with sub-molecular structure of synthetic resins are thermoplastic and thermosetting plastics points: means for repeatedly heated thermoplastic plastic is still malleable: the main PE / PP / PVC / PS / ABS / PMMA / POM / PC / PA and other common materials. thermosetting plastics mainly refers to the synthesis of heat-curing resin was obtained in plastic, like some plastics and amino phenolic plastic, not commonly used. in accordance with the application of the main points such as the common plastic PE / PP / PVC / PS and other engineering plastics such as ABS / POM / PC / PA several other commonly used . In addition there are special plastic such as high temperature and humidity and corrosion, and other special purpose for the modification of some of the obtained plastic. materials and colors used for 1. Most of the plastic materials can be recycled, but turned plastic ( outlet material) than the average raw material to be brittle, so only mix the new material (raw material) used in conjunction with the largest proportion of not more than 25% of the appropriate standard should be based on the principle of customer requirements. all types of plastic materials with different melting point due to the required , suffered different injection pressures, production must not be confused with 2.. As with the color with the plastic, so plastic raw materials can be divided into: pumping aggregates, color powder, color kinds of materials, as well as the recent increase colored liquid in plastic raw materials. pumping of raw materials is already the pigment particles mixed into the raw materials, plastic materials are coloring each one, so the formation of product color stability even. Toner kinds of materials and colors are the colors kind of material or dye mixture of raw materials use, low cost, and do not store large amounts of non-ferrous materials. but the color instability, is more difficult to control in the production of unity. |
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Copyright © GuangDong ICP No. 10089450, Plastic materials Co., Ltd. of Dongguan City, beetles All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
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You are the 8436 visitor
Copyright © GuangDong ICP No. 10089450, Plastic materials Co., Ltd. of Dongguan City, beetles All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility