PVC wood-plastic foam board and preparation method thereof
A wood-plastic foaming and PVC resin technology, applied in the field of PVC wood-plastic foaming sheet and its preparation, can solve the problems of low hardness, low mechanical strength, poor impact resistance, etc. The effect of the scarcity of wood resources
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Embodiment 1
[0028] This embodiment relates to a PVC wood-plastic foam board, including the following raw materials in parts by weight: 20 parts of PVC resin, 8 parts of polypropylene, 15 parts of bamboo powder, 6 parts of modified kaolin, 10 parts of waste ceramic powder, vitrified 5 parts of microbeads, 3 parts of ammonium polyphosphate, 2 parts of alumina, 2 parts of fumed silica, 1 part of ultraviolet absorber, 2 parts of sodium bicarbonate, 2 parts of lubricant, 1 part of impact modifier, composite stabilizer 2 parts of agent, 1 part of coupling agent, 2 parts of foaming agent.
[0029] Wherein, the preparation method of described modified kaolin comprises the following steps:
[0030] (1) Prepare the following raw materials in parts by weight: 30 parts of kaolin, 50 parts of 10% sodium hydroxide solution, 5 parts of rosin powder, and 3 parts of carboxymethyl cellulose;
[0031] (2) Soak the kaolin in a 10% sodium hydroxide solution for 3 hours, then adjust the pH to neutral;
[003...
Embodiment 2
[0043] This embodiment relates to a PVC wood-plastic foam board, including the following raw materials in parts by weight: 30 parts of PVC resin, 17 parts of polypropylene, 22 parts of bamboo powder, 14 parts of modified kaolin, 20 parts of waste ceramic powder, vitrified 10 parts of microbeads, 6 parts of ammonium polyphosphate, 5 parts of alumina, 3 parts of fumed silica, 2 parts of ultraviolet absorber, 4 parts of sodium bicarbonate, 3 parts of lubricant, 2 parts of impact modifier, composite stabilizer 3 parts of agent, 4 parts of coupling agent, 5 parts of foaming agent.
[0044] Wherein, the preparation method of described modified kaolin comprises the following steps:
[0045] (1) Prepare the following raw materials in parts by weight: 30 parts of kaolin, 50 parts of 15% sodium hydroxide solution, 5 parts of rosin powder, and 3 parts of carboxymethyl cellulose;
[0046] (2) Soak the kaolin in a 15% sodium hydroxide solution for 4 hours, then adjust the pH to neutral; ...
Embodiment 3
[0058] This embodiment relates to a PVC wood-plastic foam board, including the following raw materials in parts by weight: 22 parts of PVC resin, 11 parts of polypropylene, 18 parts of bamboo powder, 8 parts of modified kaolin, 13 parts of waste ceramic powder, vitrified 6 parts of microbeads, 4 parts of ammonium polyphosphate, 3 parts of alumina, 2.3 parts of fumed silica, 1.3 parts of ultraviolet absorber, 2.6 parts of sodium bicarbonate, 2.4 parts of lubricant, 1.3 parts of impact modifier, composite stabilizer 2.1 parts of agent, 2 parts of coupling agent and 3 parts of foaming agent.
[0059] Wherein, the preparation method of described modified kaolin comprises the following steps:
[0060] (1) Prepare the following raw materials in parts by weight: 30 parts of kaolin, 50 parts of 11% sodium hydroxide solution, 5 parts of rosin powder, and 3 parts of carboxymethyl cellulose;
[0061] (2) Put the kaolin into 11% sodium hydroxide solution and soak for 3.2 hours, then adju...
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