What are the raw materials needed for making plastics?
Plastic has good insulation for electricity, heat and sound: electrical insulation, arc resistance, heat preservation, sound insulation, sound absorption, vibration absorption, noise elimination, and excellent performancePlastic raw materials are extracted from some oil in the part of PC is most familiar with the material extracted from the oil, the PC material has a gasoline burning time; ABS is made from coal, ABS will show when soot like burn out; POM extraction from natural gas, POM will have a very smelly smell of gas when burned.
1. the main component of plastic raw material is resin2: plastic raw material is made of polymer synthetic resin (polymer) as the main ingredients penetrate various auxiliary materials or additives, in particular temperature, has the plasticity and fluidity under pressure, can be molded into shape and maintain the same shape of material under certain conditions.3. polymer: the pure or polymeric material produced by the polymerization process. Both natural and synthetic resins are polymers, polymers, or polymers4. plastic has good insulation for electricity, heat and sound: electrical insulation, arc resistance, insulation, sound insulation, sound absorption, vibration absorption, noise reduction, and outstanding performance
Classification of plastic raw materialsPlastic raw materials according to the molecular structure of synthetic resin mainly divided into thermoplastic and thermosetting plastics: for thermoplastic plastic refers to the repeated heating still has the plasticity of plastic: mainly PE/PP/PVC/PS/ABS/PMMA/POM/PC/PA as raw materials. The thermoset plastic mainly refers to a combination of heating and hardening the resin of plastic, like some phenolic and amino plastic plastic is not commonly used.In accordance with the scope of application of the main points of general plastics such as PE/PP/PVC/PS, engineering plastics such as ABS/POM/PC/PA etc. several commonly used. In addition, there are some special plastics such as high temperature and humidity resistance and corrosion resistance and other special purposes and modified prepared plastic.
Characteristics of general plastic raw materialsA. plastic raw material expands when heated, and the coefficient of linear expansion is much larger than that of metal;B. the rigidity of general plastic material is lower than that of metal;The mechanical properties of C. plastic material will decrease obviously when heated for a long time;D. general plastic raw material at normal temperature and below its yield stress, long-term stress, will appear permanent deformation;E. plastic material is sensitive to notch damage;The mechanical properties of F. plastic raw materials are usually much lower than those of metals, but the specific strength and specific modulus of composite materials are higher than those of metals. If the products are designed reasonably, they will be more advantageous;G. generally strengthen the mechanical properties of plastic raw materials, is the opposite sex;H. some plastic materials absorb moisture and cause changes in size and properties;I. some plastics are flammable;The fatigue data of J. plastic raw materials are very few and need to be considered according to their use
