We all know that PE sheet is a kind of engineering plastic sheet, which can be applied in many industries. In order to better ensure its application performance, we need to pay special attention to the choice of raw materials when making pe sheet. So what are the particulars in choosing raw materials?
In the general market, the raw materials for engineering plastic plates are mainly polyethylene, polypropylene, polyamide, polytetrafluoroethylene, ABS plastic, polyoxymethylene, polycarbonate, etc., but most of them will use polyethylene. The better polyethylene is ultra high molecular weight polyethylene. This material has a molecular chain length 10-20 times that of high density polyethylene. Longer molecular chains (higher molecular weight) give it higher toughness and resistance. Abrasive and stress crack resistance, as it is a type of polyethylene.
Part of the reason why it is so popular is because of the good chemical properties of its PE sheet. The chemical properties of the PE sheet determine its popularity. So what kind of chemical characteristics does the PE board have? Let's take a look at the chemical characteristics of the PE board! The melting point of the PE board is about 130 ℃ and the density is absolutely. 941 "" 0.960 It has excellent heat resistance and hunger resistance, good chemical stability, high rigidity and toughness, good mechanical strength, dielectric function, resistance to stress cracking, and good coagulation. 2200260C Big data suggest that the range of condensation measurements is between 2000250C.
Very good electrical function, especially the high dielectric strength makes it very practical to be used in walkie-talkie wires. It has excellent resistance to charge trapping at normal temperature and even at a high temperature of 40F.
The characteristics of PE sheet are high-quality and resistant to a large number of careers and light industrial chemicals. The aggregate does not absorb moisture and coexists. It is waterproof and steam resistant and can be used for packaging HDPE.
PE sheet: English name High Density Polyethylene, Chinese: polyethylene sheet, PE sheet is a kind of high crystallinity, non-polar thermoplastic resin. The appearance of the original HDPE is milky white, and it is translucent to a certain extent in the thin section. Has excellent resistance to most domestic and industrial chemicals. Certain types of chemicals cause chemical corrosion: for example, corrosive oxidants (concentrated nitric acid), aromatic hydrocarbons (xylene), and halogenated hydrocarbons (carbon tetrachloride). The polymer is non-hygroscopic and has good water vapor resistance, making it suitable for packaging applications. HDPE has very good electrical properties, especially its high dielectric strength, which makes it suitable for wire and cable. Medium to high molecular weight grades have excellent impact resistance, even at room temperature and even at low temperatures of -40F. The unique characteristics of the various grades of HDPE are the proper combination of four basic variables: density, molecular weight, molecular weight distribution, and additives. Different catalysts are used to produce custom special performance polymers. These variables are combined to produce HDPE grades for different uses; the best balance of performance is achieved. Has good chemical stability, can resist most acids, alkalis, organic solutions and hot water erosion, good electrical insulation.