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Abstract: The effects of non-butyltin catalysts and monobutyltin catalysts and their dosages on the catalytic esterification reaction activity of poly…
1. Basic reaction The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also called gel re…
1、Polyether As the main raw material, polyether reacts with isocyanate to produce carbamate, which is the skeleton reaction of foam products. In the c…
Bonding of rubber to metal Methods are: hard adhesive method, adhesive method, brass plating method and direct adhesion method. First, the hard adhesi…
Research progress of polyurethane prepolymer Since the release of the new national standard GB36246-2018, after two years of practice, more and more c…
Abstract: The effects of non-butyltin catalysts and monobutyltin catalysts and their dosages on the catalytic esterification reaction activity of poly…
1. Basic reaction The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also called gel re…
1、Polyether As the main raw material, polyether reacts with isocyanate to produce carbamate, which is the skeleton reaction of foam products. In the c…
The main component of polyurethane foam (PU foam) is polyurethane, the raw material is mainly polyisocyanate and polyol, by adding appropriate additiv…
Is silicone oil good or not? I do not know since when, in the hairdressing and hair care industry on the popular concept of “silicone-free”…
“I am not afraid of honest people not being smart, but I am afraid of smart people not being honest”. Coincidentally, the same applies to …
