Composite polyurethane foam comprising graphene, processes for preparing the same use thereof
AssigneeJinan Shengquan Group Share Holding Co., Ltd.
InventorsYilin Tang, Jinzhu Zhang, Wenjie Peng, Shuangcheng Wang, Ding Liu
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Abstract
The present invention relates to a polyurethane foam comprising graphene, wherein the polyurethane foam comprises graphene structure and a non-carbon non-oxygen non-hydrogen element. By choosing a specific composite having a carbon nanostructure, the present invention achieves compounding polyurethane via simply mixing with polyether polyol, and then polymerizing with polyisocyanate, omitting the step of compounding the composite having a carbon nanostructure, having a simple process and seamlessly connecting with existing equipment.
Claims16
A process for preparing a polyurethane foam having a graphene structure and a non-carbon non-oxygen non-hydrogen element comprising elements of Fe, Si and Al, wherein the combined weight of the elements of Fe, Si and Al are in an amount of 0.0018 wt %-0.4 wt % of the polyurethane foam, the process comprising:
- (1) adding into a polyether polyol composition a composite having a carbon nanostructure, an emulsifier, a first catalyst, a foaming agent, and optionally a functional auxiliary, and stirring and mixing homogeneously to obtain a polyether polyol monomer composition;
- (2) adding polyisocyanate into the polyether polyol monomer composition of step (1) and mixing homogeneously to obtain a mixture;
- and
- (3) pouring the mixture in step (2) into a mold for foaming, and curing to obtain a polyurethane foam comprising the the graphene structure;
- wherein the polyether polyol composition has a hydroxyl value of 20-300 mg KOH/g;
- and the polyether polyol composition is a mixture of a polyether having a hydroxyl value of 20-60 mg KOH/g and a polyether having a hydroxyl value of 150-300 mg KOH/g in a mass ratio of 1:(0.1-10).
Dependencies are inferred from the claim text.