Application of PE foam on packaging
DATE：2019/11/1 8:48:43 / READ： / SOURCE：This station
Application of PE foam on packaging
1 For foaming ratios greater than 5, it is mainly used for cushioning shockproof cushion materials for precision instruments, valuables, fragile items, export ceramics, handicrafts, etc., and can also be molded into foam products of various packaging shapes, such as: Egg turnover boxes, packaging liners for various foods, trays, etc.;
2 PE foam with a low expansion ratio of less than 5, the relative density is close to that of wood, the surface can be made into a hard skin layer, and the wood can be made into various light-packing boxes, commodity turnover boxes, calcium-plastic corrugated boxes, calcium plastics. Crate, etc.
3 High-foam plastic sheets can also be vacuum-molded at 150 ° C to make various food boxes, fast food lunch boxes, etc.
4 Harder PE sheets with a foaming ratio of 10 to 15 can be vacuum-blipped into poultry egg trays and boxes for precision instruments, optical instruments, televisions, electronic computers, glass, ceramic utensils, handicrafts, etc. package.
The performance of the high foamed polyethylene calcium plastic extruded sheet with a foaming ratio of 6 to 10 times is as follows:
Density: 0.16 ~ 0.20g / cm3, size: 1900mm × 820mm, thickness 40mm, water absorption: 0.66% ~ 1.2%, thermal conductivity: 0.052 ~ 0.64W / m · ° C, compressive strength: 0.56 ~ 0.7MPa, stretching Strength: 0.73 to 0.95 MPa, impact strength: 0.29 to 0.4 MPa.
After tempering forty-three days at -19 ° C, the tensile strength was 1.25 MPa, a closed cell material.
The CaCO3 powder is added to the PE particles by mechanical foaming, and the film is biaxially stretched in a high elastic state after film formation, and a low foaming plastic film can be produced. The low foaming PE film can be used for pillow candy packaging, especially It is a high-grade lactose-type pillow packaging, surface or reverse printing. After filling, the two ends and the middle are heat-sealed into a pillow pattern.
1 For foaming ratios greater than 5, it is mainly used for cushioning shockproof cushion materials for precision instruments, valuables, fragile items, export ceramics, handicrafts, etc., and can also be molded into foam products of various packaging shapes, such as: Egg turnover boxes, packaging liners for various foods, trays, etc.;
2 PE foam with a low expansion ratio of less than 5, the relative density is close to that of wood, the surface can be made into a hard skin layer, and the wood can be made into various light-packing boxes, commodity turnover boxes, calcium-plastic corrugated boxes, calcium plastics. Crate, etc.
3 High-foam plastic sheets can also be vacuum-molded at 150 ° C to make various food boxes, fast food lunch boxes, etc.
4 Harder PE sheets with a foaming ratio of 10 to 15 can be vacuum-blipped into poultry egg trays and boxes for precision instruments, optical instruments, televisions, electronic computers, glass, ceramic utensils, handicrafts, etc. package.
The performance of the high foamed polyethylene calcium plastic extruded sheet with a foaming ratio of 6 to 10 times is as follows:
Density: 0.16 ~ 0.20g / cm3, size: 1900mm × 820mm, thickness 40mm, water absorption: 0.66% ~ 1.2%, thermal conductivity: 0.052 ~ 0.64W / m · ° C, compressive strength: 0.56 ~ 0.7MPa, stretching Strength: 0.73 to 0.95 MPa, impact strength: 0.29 to 0.4 MPa.
After tempering forty-three days at -19 ° C, the tensile strength was 1.25 MPa, a closed cell material.
The CaCO3 powder is added to the PE particles by mechanical foaming, and the film is biaxially stretched in a high elastic state after film formation, and a low foaming plastic film can be produced. The low foaming PE film can be used for pillow candy packaging, especially It is a high-grade lactose-type pillow packaging, surface or reverse printing. After filling, the two ends and the middle are heat-sealed into a pillow pattern.
Author：admin