| abstract |
PROBLEM TO BE SOLVED: To provide an environmentally friendly odorless foam sole material and a method for manufacturing a sole. SOLUTION: The environment-friendly odorless foam sole material includes 60 to 90 parts of acetate ester starch, 20 to 40 parts of silk fibroin, 10 to 30 parts of polyether polyol, 50 to 80 parts of isocyanate, and 1 to 4 parts of a cross-linking agent. 0.2 to 0.8 parts of water, 5 to 10 parts of nano bamboo fiber, 5 to 10 parts of nano silica, 5 to 10 parts of zinc oxide, 1 to 5 parts of activated carbon, and 1 to 2 parts of silicon carbide. It is made from 0.2 to 0.5 parts of sodium stearate and 0.1 to 0.3 parts of a catalyst. The polyether polyol is a polyether polyol obtained by polymerizing glycerin and ethylene oxide, having a functionality of 2, and having a number average molecular weight of 4000 to 6000. The isocyanate is any one or a mixture of 2,4-diphenylmethane diisocyanate and 4,4-diphenylmethane diisocyanate. [Selection diagram] None |