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Development trends for antiseptic adhesive sheet

Guo Linkage 2015-01-07 11:27:02


Have been widely used, sodium o-phenylphenol, pentachlorophenol sodium, in an amount of 3% of the solid content of the adhesive. However, due to the presence of sodium pentachlorophenol adverse effects on humans and the environment, the preservative has been included in the prohibited range. Hydroxybenzoic acid esters are relatively mild fungicide. Chloride, methyl isothiazoline, tributyl kiosks oxide, dimethyl phenol, etc. is also effective fungicides.

Development trends preservative for wood adhesives are: ① from highly toxic to low toxicity, non-toxic transition, such as sodium pentachlorophenol has been hydroxybenzoic acid esters, such as new industrial preservative BIT alternative trend; ② from organic solvents Type to inorganic, water-soluble type of transition, many environmental soft heavy metal salts such as salt Ag, Zn salt and other protein-based wood adhesive can be used to play a preservative effect, have the effect of improving the water resistance; ③ The transition from chemically resistant to biological corrosion. In natural products, chitosan is manufactured composite wood preservatives good material