How many years can silicone oil keep in stock? Silicone oil, used as a waterproof additive in gypsum board production, is stable chemistry and therefore does not have an official shelf life. In general, the shelf life is a minimum of 12 months when the material is kept in the original container [...]
Adding silicone fluid is efficient to improve the water-resistance of gypsum plasterboard. As the water repellent agent methyl hydrogen silicone fluid added into the gypsum, the polysiloxane with -Si-O-Si main molecular chain and organic molecular side chain will combine with -OH molecular chain in gypsum raw material, to form a low tension [...]
Organic Chemical Material: Silicone DMC from the year 2019 compared to 2020 in the above chart. Looking back at the main trend of DMC in 2019, the market is still suppressed first and then increased. The price fluctuations throughout the year were noticeable and soaring, and emergency stops are the norm. [...]
Abstract: According to the actual situation there are poor adaptability between water reducing agents and gypsum in the production of plaster board, three types of water-reducing agent are chosen in this subject: lignin, naphthalene and polycarboxylate. Based on the requirements of the production process，effects of three different types of water-reducing agent on setting time, [...]
Introduction Gypsum building material has excellent fire resistance, air permeability and sound absorption property. The excellent appearance of white color and smooth structure is good for decoration, combined with lightweight and relatively low prices, and gypsum building materials were developing very rapidly in recent years. Currently, the gypsum building material is mainly [...]
