1. what is sprayed rigid polyurethane? sprayed rigid polyurethane is a new type of waterproof and thermal insulation material made of polymer by mixin…
there are many types of catalysts for polyurethane, with different catalytic activities and effects. in the production of polyurethane products, it is…
kinetics of the reaction of hydroxyl compounds with isocyanates – d(-nco)/dt = k0 × (-nco) × (-oh) k1 is the forward reaction rate for the compl…
rigid foam leveling agent (hereinafter referred to as “silicone oil”) model selection and dosage definition is of great importance, it is …
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…
in a year when manufacturing supply chains have been hit hard, another shortage is making productive life harder for manufacturers and consumers: plas…
the greenhouse gas carbon dioxide (co2) is the end product of many chemical reactions, and its excessive emission will aggravate the global average te…
in the 1980s and 1990s, there were as many as 1,000 small and medium-sized ammonia plants, equivalent to almost one ammonia plant in every county in t…
catalyst market research catalyst industry status analysis catalyst technology is one of the key technologies in industrial production and daily life,…
the greenhouse gas carbon dioxide (co2) is the end product of many chemical reactions, and its excessive emission will aggravate the global average te…
how to get rid of formaldehyde at present, the common formaldehyde removal products on the market are physical adsorption, photocatalyst, stron…