Temperature-resisting anti-aging modified wood-plastic composite board and preparation process thereof
A preparation process and composite board technology, which is applied in the field of wood-plastic board, can solve the problems of PVC-based wood-plastic material strength and toughness decline, PVC-based wood-plastic material expansion and cracking, mechanical properties and temperature resistance, etc., to achieve uniform and sufficient reaction , reduce stress, fully respond to the effect
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Embodiment 1
[0045] 1) Anatase titanium dioxide and potassium carbonate were mixed and ball milled, calcined at 200°C for 5 hours, treated with boiling water for 30 minutes, dried at 60°C for 30 minutes, then pickled with hydrochloric acid, rinsed with deionized water, and dried at 60°C for 2 hours. Titanium dioxide nanofibers were obtained after calcination at 350°C for 5 hours;
[0046] 2) Dilute and dissolve the γ-(2,3-glycidoxy)propyltrimethoxysilane with 5 times the weight of an organic solvent, stir the dry plant cellulose, and spray it into Diluted γ-(2,3-glycidyloxy)propyltrimethoxysilane, then continued to stir for 15 minutes to obtain pretreated plant cellulose;
[0047] 3) Put polyvinyl chloride, chlorinated polyvinyl chloride, and titanium dioxide nanofibers described in step 1) together in a double-roller mill and knead for 3 minutes at a mixing temperature of 110°C, then add 2,6-di tert-butyl-4-methylphenol and ultrafine talcum powder were mixed for 15 minutes to obtain a pr...
Embodiment 2
[0054] 1) Anatase titanium dioxide and potassium carbonate were mixed and ball-milled, calcined at 220°C for 3 hours, treated with boiling water for 25 minutes, dried at 80°C for 25 minutes, then pickled with hydrochloric acid, rinsed with deionized water, and dried at 80°C for 1 hour. Titanium dioxide nanofibers were obtained after calcination at 420°C for 3 hours;
[0055] 2) Dilute and dissolve the maleic anhydride grafted polylactic acid with 5 times the weight of an organic solvent, stir the dry plant cellulose, and spray the diluted maleic anhydride grafted polylactic acid into a mist during the stirring process , then continue to stir for 15min to obtain pretreated plant cellulose;
[0056] 3) Put polyvinyl chloride, chlorinated polyvinyl chloride, and titanium dioxide nanofibers described in step 1) together in a double-roller mill and knead for 5 minutes at a mixing temperature of 80°C, then add 2,6-di tert-butyl-4-methylphenol and ultrafine talcum powder were mixed ...
Embodiment 3
[0063] 1) Anatase titanium dioxide and potassium carbonate were mixed and ball-milled, calcined at 200°C for 4 hours, treated with boiling water for 25 minutes, dried at 70°C for 30 minutes, then pickled with hydrochloric acid, rinsed with deionized water and dried at 70°C for 2 hours. Titanium dioxide nanofibers were obtained after calcination at 400°C for 4 hours;
[0064] 2) Dilute and dissolve the γ-(2,3-glycidoxy)propyltrimethoxysilane with 3 times the weight of an organic solvent, stir the dry plant cellulose, and spray it into The diluted γ-(2,3-glycidyloxy)propyltrimethoxysilane was then stirred for 5 minutes to obtain pretreated plant cellulose;
[0065] 3) Put polyvinyl chloride, chlorinated polyvinyl chloride, and titanium dioxide nanofibers described in step 1) together in a double-roller mill and knead for 5 minutes at a mixing temperature of 80°C, then add 2,6-di tert-butyl-4-methylphenol and superfine talcum powder were mixed for 10 minutes to obtain a prelimin...
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