What is the material of PP
Polypropylene, a kind of plastic, is a high density, no side chain, high crystallization of linear polymer, with excellent comprehensive properties.
Common products: basin, bucket, furniture, film, woven bag, bottle cap, bumper, etc.
pp plastic, chemical name :Polypropylene English name :Polypropylene (pp for short) specific gravity :0.9-0.91 grams/cubic centimeter forming shrinkage rate :1.0-2.5% molding temperature: 160-220℃PP is a crystalline polymer, PP's comprehensive performance is better than PE material.
PP products light weight, good toughness, good chemical resistance.
The disadvantages of PP: low dimensional accuracy, insufficient rigidity, poor weather resistance, it has a shrinkage phenomenon, after demoulding, easy aging, brittle, easy deformation.
In daily life, the commonly used plastic crisper is made of PP material.
Is PP material toxic?
PP resin itself is non-toxic, generally its blown products (bottles, bags, film, etc.) are basically non-toxic.
But its injection, extrusion, molding plastic products (basin, box, frame, etc.), there are a lot of fillers, pigments, plasticizers, anti-aging agents and other chemical components, the content is often more than PP itself, not easily considered non-toxic.
Generally allowed to dress up food PP products, there are national inspection standards, but also dare not deny some smuggled products, so it is recommended that you go to some mall website shopping, such as the website specializing in household goods is more assured.