pp board manufacturer: PP board softening temperature introduction

PP sheet is a semi-crystalline material. It is harder than PE and has better combustion points. Because homopolymer PP is very brittle at temperatures above 0 ° C, many commercially available PP boards are random copolymers with 1% to 4% ethylene content or high ethylene clamp forms. Copolymer. Copolymer PP sheet has lower thermal deformation temperature, transparency, low gloss, low rigidity, but has stronger impact strength. The strength of PP sheet increases with the increase of ethylene content. With 20% glass fiber reinforced, in addition to maintaining the original excellent performance, strength and stiffness than pp increased by 1 times, and has good heat resistance, temperature impact resistance and kitchen resistance and arc resistance. PP board manufacturers are especially suitable for chemical fiber, chlor-alkali, petroleum, dyes, food, light industry, metallurgy, sewage treatment and other fields.

The softening temperature of PP plate is 150 degrees Celsius. Due to the high finish, this material has surface stiffness and scratch resistance. The independent MFR range of PP sheet is 40. PP sheets with lower MFR have good impact resistance but lower tensile strength. For materials with the same MFR, the strength of copolymer type is higher than that of homopolymer type. The shrinkage plug of the pp board is high due to the knotting problem. And the directional uniformity of shrinkage is much better than that of materials such as PEHD. Add 30% glass additive to reduce shrinkage. Both homopolymer and copolymer p- sheet have excellent resistance to moisture, acid and alkali corrosion and solubility. However, it has no resistance to aromatic solvent, chlorinated hydrocarbon solvent, and pp sheet is not oxidation resistant at high temperatures such as PE.

What should we pay attention to when buying PP sheets

After years of development, pp sheet has been very mature. Because of its many advantages such as high hardness and high ignition point, it has become a material used in all walks of life. Different priorities should be considered when purchasing PP boards for different purposes. Only comprehensive consideration of different factors, can choose to meet the requirements of industrial production PP board. Next, we will introduce the PP board to pay attention to matters.

First, before choosing a pp board, you should have a clear understanding of the purpose of the pp board. pp boards now have many uses, most of which are used in the manufacture of some display boards, containers, protective devices and some building and decorative materials. Generally, PP boards used to manufacture exhibition boards and containers require smooth surfaces and high permeability. The PP panel used in the protection device has higher requirements, and its ignition point and melting point must meet certain requirements. In addition, when buying pp board, we should also pay attention to the qualifications of pp board manufacturers and whether we can provide after-sales service. After-sales service is a very important consideration.