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Composition and application of two-component polyurethane adhesives

Preface Two-component polyurethane adhesives are usually composed of an isocyanate component (curing agent) containing NCO and a hydroxyl component (m…

Study of catalysts for the synthesis of polyester resins for powder coatings

Abstract: The effects of non-butyltin catalysts and monobutyltin catalysts and their dosages on the catalytic esterification reaction activity of poly…

Polyurethane flexible foam formulation summary and impact factors

1. Basic reaction The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also called gel re…

The influence of various raw materials of polyurethane on soft foam

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…

Study of catalysts for the synthesis of polyester resins for powder coatings

Abstract: The effects of non-butyltin catalysts and monobutyltin catalysts and their dosages on the catalytic esterification reaction activity of poly…

Polyurethane flexible foam formulation summary and impact factors

1. Basic reaction The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also called gel re…

Do you know which are the main raw materials of polyurethane foam?

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…

Do you know which are the main raw materials of polyurethane foam?

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?

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&#8221…

Keeping the catalyst “honest”

“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 …

Summary of various methods to improve the hardness of polyurethane rigid foam

In the process of foaming, if the hard foam is not hard enough, how to improve the hardness? In this regard, I have collected some solutions for your …

Polyurethane foam – various methods to improve the hardness of hard foam

In the process of foaming, if the hardness of the hard foam is not enough, how to improve the hardness? In this regard, I have collected some solution…

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