Wood-plastic composite material preparation method
A wood-plastic composite material and wood powder technology, which is applied in the field of wood-plastic composite materials, can solve the problems of low mechanical properties, achieve good UV resistance, improve weather resistance, and prolong service life.
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Embodiment 1
[0020] A preparation method of a wood-plastic composite material, the steps are as follows:
[0021] (1) Pretreatment of wood powder: wood powder (70 mesh), epoxy resin, curing agent, accelerator, reactive diluent, and inert diluent according to the mass ratio of 15:100:60:0.08:6:10 Mix evenly, and cure at 60 °C for 10 h to obtain pretreated wood powder; among them, the epoxy resin is epoxy resin E51, the curing agent is methyl tetrahydrophthalic anhydride, the accelerator is organic urea UR300, The active diluent is AGE, and the inert diluent is absolute ethanol;
[0022] (2) Pretreated wood powder, resin PP, hollow glass microspheres (60 mesh), coupling agent MAPP, lubricant PE wax, and ultraviolet absorber UV-360 according to the mass ratio of 35:30:25:3: 4:3 mixed uniformly for 60 min; among them, the hollow glass microspheres need to be surface treated with coupling agent KH-560 before use: the hollow glass microspheres are immersed in the coupling agent KH-560 for 12 h,...
Embodiment 2
[0026] A preparation method of a wood-plastic composite material, the steps are as follows:
[0027] (1) Pretreatment of wood powder: wood powder (70 mesh), epoxy resin, curing agent, accelerator, active diluent, and inert diluent according to the mass ratio of 20:100:90:2:10:15 Mix evenly, and cure at 80 °C for 8 h to obtain pretreated wood powder; among them, the epoxy resin is epoxy resin E44, the curing agent is methyl hexahydrophthalic anhydride, the accelerator is organic urea UR500, The active diluent is AGE, and the inert diluent is acetone;
[0028] (2), the pretreated wood powder, resin HDPE, hollow glass microspheres (80 mesh), coupling agent MAPE, lubricant PE wax, ultraviolet absorber UV-360 according to the mass ratio of 40:35:20:4: 3:3 mixed evenly for 45 minutes; among them, the hollow glass microspheres need to be surface-treated with coupling agent KH-560 before use, and the hollow glass microspheres are immersed in the coupling agent KH-560 for 16 hours, th...
Embodiment 3
[0032] A preparation method of a wood-plastic composite material, the steps are as follows:
[0033] (1) Pretreatment of wood powder: wood powder (120 mesh), epoxy resin, curing agent, accelerator, reactive diluent, and inert diluent according to the mass ratio of 8:100:120:3:12:12 Mix evenly, and cure at 100 °C for 10 h to obtain pretreated wood powder; among them, the epoxy resin is epoxy resin E51, the curing agent is dodecenyl succinic anhydride, the accelerator is DMP-30, and the reactive diluent is 501, and the inert diluent is butanone;
[0034] (2), the pretreated wood powder, resin PP, hollow glass microspheres (100 mesh), coupling agent MAPP, lubricant PE wax, ultraviolet absorber UV-360 according to the mass ratio of 20:25:25:3: Mix 3:4 evenly for 30 minutes; among them, the hollow glass microspheres need to be surface-treated with coupling agent KH-560 before use, and the hollow glass microspheres are immersed in the coupling agent KH-560 for 24 h, then washed and...
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