1. the most important thing to calculate in the rigid foam composite material is whether the ratio of black and white materials (weight ratio) is reas…

recently, i have often received calls from friends in the industry from all over the country asking about various technical problems that arise in the…

in the era of saving money, the price of polyether continues to rise. i have the honor to witness the transformation of hard foam products from huge p…

1. water distribution ratio water: amine: silicone oil = 100: 7: 35 the amine is a-33 or a38, which can be imported or domestically produced. the sili…

sponge is a porous material with good water absorption and can be used to clean items. commonly used sponges are made from wood cellulose fibers or fo…

silicon oil usually refers to linear polysiloxane that remains liquid at room temperature. it is a type of silicone product with many varieties and a …

during the foaming process, if the hardness of the hard foam is not enough, how to increase the hardness? 01 the lower cost first choice is to add cal…

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during the foaming process, if the hardness of the hard foam is not enough, how to increase the hardness? in this regard, i have collected some soluti…

in the preparation process of polyurethane foam, the main role of the catalyst is to adjust the speed of the foaming reaction and gelation reaction to…

influence of catalysts, the one-step process requires a more active catalyst than the prepolymer process, and a composite catalytic system of organoti…