Modifying agent used for strengthening dimensional stability of compound wax emulsion of quick-growing wood
A dimensional stability and composite wax technology, applied in wood treatment, impregnated wood, wood impregnation, etc., can solve the problems of reduced water absorption, affecting fast-growing wood, etc., and achieve improved flexural elastic modulus, good dimensional stability, and reduced hygroscopic effect
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[0013] A compound wax emulsion used for fast-growing wood to enhance the dimensional stability modifier, prepared from the following raw materials in parts by weight (kg): formaldehyde 3, urea 2, hexamethylenetetramine 1.5, maleic anhydride 0.02 , an appropriate amount of acetic acid, an appropriate amount of ammonia water, an appropriate amount of deionized water, dimethylol dihydroxyethylene urea 20 with a solid content of 42wt%, magnesium chloride hexahydrate 1.5, silica sol 10, paraffin wax 3, microcrystalline wax 2, fatty alcohol polyoxyethylene Ether 3, polyvinyl alcohol 2.
[0014] Described a kind of compound wax emulsion that is used for fast-growing wood strengthens the modifying agent of dimensional stability, is made by following concrete steps:
[0015] (1) Put formaldehyde, urea, and hexamethylenetetramine into the reaction kettle, add maleic anhydride, heat until completely dissolved while stirring, add 1.5 times the total amount of deionized water, heat to 70°C...
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