Foamed plastic pad as well as preparation method and production line

Abstract

The invention relates to the field of foamed plastic technology, and more specifically relates to a foamed plastic pad as well as a preparation method and a production line. The foamed plastic pad is prepared by the following raw materials in percentages by weight: 5-25% of an ethylene-vinyl acetate copolymer, 30-70% of polyethylene, 20-50% of calcium carbonate, 1-3% of a cross-linking agent, 3-5% of an auxiliary agent, and 1-3% of a toner. Compared with prior art, the foamed plastic pad has a higher specific gravity, and has better skid resistance; the pad is odorless and provides better comfortability; the pad has better rebound resilience and a certain buffer effect. The invention also provides a preparation method of the foamed plastic pad, and compared with the prior art, on one hand, calcium carbonate is introduced into the formula in order to increase specific gravity of the foamed plastic pad; on the other hand, raw materials are mixed uniformly with stirring, a whole sheet material is rolled, continuous foaming technology is used for foaming the whole sheet material, so that continuous foaming of the foamed plastic pad with high specific gravity and high efficiency production are realized.

Description

technical field [0001] The invention relates to the technical field of foam plastics, in particular to a foam pad, a preparation method and a production line thereof. Background technique [0002] Foam plastic is a kind of polymer material formed by dispersing a large number of gas micropores in solid plastic. It has the characteristics of light weight, heat insulation, sound absorption, shock absorption, etc., and its dielectric performance is better than that of matrix resin. It has a wide range of uses. There are many types of foam plastics, including polystyrene foam (EPS), rigid polyurethane foam (PUR), polyethylene foam (PE), phenolic foam (PF), urea formaldehyde cast-in-place foam (UF), etc. [0003] Among them, polyethylene foam (PE) hardly absorbs water and is almost impermeable to water vapor, and it will not be affected by moisture when used in a humid environment for a long time, while the performance of EPS, PUR, PF and UF in this respect cannot be compared with...

AI Technical Summary

Problems solved by technology

[0007] One of the purposes of the present invention is to provide a foam pad for the deficiencies in the prior art, which solves the problem that the existing foam pad is easy to slide due to its light weight and the problem that the existing foam pad releases irritating gas and lacks comfort

[0008] The second object of the present invention is to provide a method for preparing a foam pad in view of the deficiencies in the prior art, which solves the problems of non-continuous foaming and uneven foaming in the existing method and the foam pad is easy to slide due to its light weight The problem

[0009] The third object of the present invention is to provide a production line for foam pads to solve the problems of low efficiency and poor product quality in the existing foam pad production line.

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