Characteristics and Basic knowledge of plastics(PVC foam board)

Characteristics and Basic knowledge of plastics(PVC foam board):
PP material: PP material also name poly c dilute, appearance is white translucent shaped, gloss and with oily, hand touch creamy sense, System quality soft has different degree of can bending sexual, percussion horny sound, forming Shi General set temperature for 180 ℃ ~230 ℃, easy combustion, PP material in other several plastic in the, toughness good, heat sexual poor, hot expansion coefficient large, liquidity strong, coloring performance more stability, while, it of moisture absorption small, forming process in the, as does not by outside rain of wet, Not drying will not affect products in advance of surface gloss, if contact with the copper will promote spoilage, because of its density, texture and soft, so easy to scratch.
1, the melting temperature: Crystal plastic from solid to the melting temperature.
2, temperature: it refers to non-Crystal plastic melt from the beginning of the total needed to melt the highest temperature.
3, heat distortion temperature: minimum temperature of plastic deformation of products started to happen. For crystals, heat-resistant temperature and heat distortion temperature difference of 10 ° c or so, for non-Crystal key, heat-resistant temperature and heat distortion temperature difference is large.
4, shrinkage: shrinkage rate is, expressed as a percentage.

Basic knowledge about plastics:
1. Plastics: organic synthetic resin (polymer materials) as the main ingredient, joining other additives consisting of artificial materials. These additives include fillers, lubricants, plasticizers, antistatic agents, stabilizers, antioxidants, flame retardants, colorants, etc.
2. Classification of plastics:
By purpose: conventional plastics and engineering plastics.
Common plastics: PP, PE, AS, PVC foam board;
Engineering Plastics: ABS, PC, POM, NYLON, the Republic PBT, PPS.