Low-density timber-imitation polyurethane resin for shoes
A polyurethane shoe and low-density technology, which is applied in the field of shoe resin, can solve the problems of broken products due to poor strength, easy shrinkage and deformation of products, and narrow foaming range. wide range of effects
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[0036] The present invention is mainly a three-component polyurethane shoe resin. The A component is a polyester polyol containing hydroxyl (OH) groups, the B component is a prepolymer containing isocyanate (NCO) groups, and the C component It is an ethylene glycol solution containing triethylenediamine. When in use, add the C component to the A component, mix it uniformly, as a component, and then chemically react with the B component. After high-speed mixing by a low-pressure shoe foaming machine, it is injected into the mold for one-time injection molding.
[0037] The molding processing condition of low-density wood-like polyurethane shoe resin is to add the C component to the A component to form the mixed component of the A component.
[0038] (1) Manual foaming, weigh 100 parts of component A and 145-155 parts of component B, and pour into the mold cavity for foaming under strong stirring at 2500r / min.
[0039] (2) Mechanical operation: the mixed components are added to the ...
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