In a year when manufacturing supply chains have been hit hard, another shortage is making productive life harder for manufacturers and consumers: plas…
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…
Foaming system to determine: 141B’s or cyclopentane’s. The range of water volume/physical foaming agent volume is scheduled to 2, first ma…
What are the odorless or low-flavor polyurethane catalysts that improve the pre-foaming speed? Amine catalysts DABCO 33LVR A-33 33% Dipropylene glycol…
What does dmaee mean? DMAEE is the abbreviation for dimethylaminoethoxyethanol. DMAEE is a chemical substance with the molecular formula C6H15NO2. DMA…