Forming process of high light transmittance foamed elastic material

Abstract

The invention discloses a forming process of a high light transmittance foamed elastic material. The forming process includes the following steps: (1) a to-be-foamed body is placed in a reaction kettle, supercritical gas is added to the reaction kettle, and the pressure in the reaction kettle is 10-60 Mpa; (2) the to-be-foamed body is made to saturate in the reaction kettle for a period of time until the to-be-foamed body is in the gas saturation state; and (3) an autoclave is subjected to pressure relief at the pressure relief speed of 0.1-1 Mpa / s, the gas in the to-be-foamed body in the gassaturation state is released gradually, and the high light transmittance foamed elastic material with forming holes at the diameter range of 0.1-3 mm. Compared with the prior art, the foamed elastic material obtained by the forming process has good light transmittance, and thus has widespread application in shoe sole lamplight function design.

Description

technical field [0001] The invention relates to the field of foamed elastic materials for shoe soles, in particular to a molding process of a highly light-transmitting foamed elastic material. Background technique [0002] At present, in the field of shoe soles, foamed elastic materials have been widely used as the core shock-absorbing layer of insoles. Various foamed elastic materials are basically formed by chemical foaming or physical foaming. Based on its unique characteristics, the mode is being welcomed by the market. The physical foaming process generally includes placing the foamed body in a high-pressure reactor, adding carbon dioxide or nitrogen into the high-pressure reactor, and then Keep the reactor at a higher temperature, and the pressure of the reactor is generally controlled at 10-50Mpa. In such an environment, let the foam to be expanded be saturated for 0.5-10h, so that carbon dioxide or nitrogen and other gases can be released at high pressure. The state...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a molding process of high light transmittance foamed elastic material to solve the problem that the foamed elastic material formed in the prior art has poor light transmittance and cannot meet the lighting design requirements