Introduction of PP Bar Products
With the rapid development of economy and technology, people’s wisdom is becoming more and more serious, playing a more and more role, and all kinds of materials are emerging in all walks of life. PP bar is also a good material widely applied. What is the PP stick?
The PP rod is a semi crystalline material. It is harder than PE and has a higher melting point. Because the PP temperature of homopolymer type is very high when the temperature is above 0 1~4%, it is very brittle. Therefore, many commercial PP materials are irregular copolymer with high ethylene content.
Most of the colors are white and gray. PP bar is a kind of high polymer, propylene monomer is CH2=CH – CH3, by polyaddition reaction of polypropylene, chemical formula can be expressed as n (C3H6), simple structure can be expressed as 〈-CH2-CH(CH3)-〉 n.
The copolymer type PP materials have lower thermal distortion temperature (100), low transparency, low gloss and low rigidity, but have stronger impact strength.
The strength of PP increases with the increase of ethylene content. The softening temperature of VEKA in PP is 150 °C. Because of high crystallinity, the material has good surface stiffness and scratch resistance. There is no environmental stress cracking in PP.
Its characteristics are low density, heat resistance, no deformation, high rigidity, high surface strength, good chemical stability, excellent electrical performance, innocuity, harmlessness, uniform color, smooth surface, convenient installation and maintenance, long service life, easy processing and strong soldering.