The definition of the PP material

PP(PP toilet seat) is made of polypropylene, which is a non-toxic, odorless and tasteless milky white high crystalline polymer with a density of only 0.5% 90 -- "0.91g/cm3 is one of the lightest varieties of all plastics. It is particularly stable to water. Its water absorption in water is only 0.01% and its molecular weight is about 80000-150000. It has good formability, but due to its large shrinkage (1% ~ 2.5%). Thick wall products are easy to sag. It is difficult to meet the requirements for some parts with high dimensional accuracy, and the surface luster of the products is good.

Polypropylene(PP toilet seat), a plastic, is a linear polymer with high density, no side chain and high crystallization, which has excellent comprehensive properties. Common products: basin, barrel, furniture, film, woven bag, bottle cap, automobile bumper, etc.

PP plastic, Chemical name: Polypropylene English Name: Polypropylene (abbreviated as PP) specific gravity: 0.9-0.91g/cm3 molding shrinkage: 1.0-2.5% molding temperature: 160-220 ℃. PP is a crystalline polymer, and its comprehensive properties are better than those of PE. PP products are light in weight, good in toughness and good in chemical resistance. PP has the disadvantages of low dimensional accuracy, insufficient rigidity and poor weather resistance. It has post shrinkage phenomenon, and is easy to age, become brittle and deform after demoulding. In daily life , the commonly used fresh-keeping box is made of PP material.