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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…
2019 MDI whole industry chain big events 1 In 2019, the global economy is running weak, and the Organization for Economic Cooperation and Development …
On November 26-27, China Polyurethanes Industry Association (PUIA) Auxiliaries Branch held the Polyurethane Auxiliaries Application Technology Confere…
One, the hard foam combination material need to calculate things is the ratio of black and white materials (weight ratio) is not reasonable, another f…
In the process of polyurethane foam preparation, the role of catalysts is mainly to regulate the speed of foaming and gelation reactions to make them …
Kinetics of the reaction of hydroxyl compounds with isocyanates -d(-NCO)/dt=K0×(-NCO)×(-OH) K1 is the forward reaction rate for the complex formation …
1. Introduction Catalysts are chemicals that can change the rate of chemical reactions. Catalysts used in polyurethane synthesis can be broadly classi…
On November 26-27, China Polyurethanes Industry Association (PUIA) Auxiliaries Branch held the Polyurethane Auxiliaries Application Technology Confere…
2019 MDI whole industry chain big events 1 In 2019, the global economy is running weak, and the Organization for Economic Cooperation and Development …
Polyurethane flexible foam, refers to the soft polyurethane foam, is a kind of flexible polyurethane foam with certain elasticity, it is the largest a…
1、 Basic reaction and data The formation of polyurethane soft foam includes 2 basic reactions: foaming reaction and polymerization reaction (also call…
First, the most important thing to calculate in the hard foam combination is the ratio of black and white materials (weight ratio) is reasonable, anot…
