Binder, crystal-refined injection molding feed and preparation method of crystal-refined injection molding feed

The invention discloses a binder, a crystal-refined injection molding feed and a preparation method of the crystal-refined injection molding feed, and the binder comprises the following components in percentage by weight: 74-94.5 wt.% of polyformaldehyde; % of a nucleating agent, 2-5% of a crystallization inhibitor, 1-5% of a surface wetting agent, 1-8% of a micro-crosslinking olefin high polymer, 0.1-1% of a composite antioxidant, and 0.1-7% of a grafted compatibilizer; 0.1 to 3 wt.% of an interface improver; and 0.1-4 wt.% of a lubricant. The invention also provides a crystal-refined injection molding feed adopting the binder and a preparation method of the crystal-refined injection molding feed. The injection molding feeding green body stage is full in mold filling, free of gaps, small in shrinkage rate and small in deformation, and the yield and production benefits of products are greatly improved. 本发明公开了一种粘结剂、结晶细化的注塑成型喂料及其制备方法，所述粘结剂按重量百分比计，包括以下组分：共聚甲醛74-94.5wt.％；成核剂1-2wt.％，结晶抑制剂2-5wt.％，表面润湿剂1-5wt.％，微交联化烯