Plate, preparation method of plate and use method of plate
A sheet and substrate technology, applied in chemical instruments and methods, applications, household appliances, etc., can solve the problems of high formaldehyde emission and human health damage, achieve low formaldehyde content and volatilization, good environmental protection grade, and not easy to break damage effect
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[0041] The substrate 110 of the embodiment of the present invention is prepared by heating and mixing raw materials, and extruding the heated and mixed raw materials through twin-screw extrusion equipment under high temperature conditions. In this process, polyvinyl chloride is polymerized into polyvinyl chloride copolymer at high temperature according to the mechanism of free radical polymerization.
[0042]The preparation method of the film layer 120 in the embodiment of the present invention is as follows: uniformly mix the raw materials of the film layer 120 to obtain a slurry. The slurry is extruded by a twin-screw extruder and cast into sheets by a die head, and the cast sheets are cooled by casting chill rolls. The cast sheet is sequentially stretched longitudinally and transversely on stretching rollers, and the volatile components are removed. The stretched material is subjected to a setting heat treatment to finally obtain the film layer 120 .
[0043] Through the ...
Embodiment 1
[0073] This embodiment provides a method for preparing a board. The board includes a substrate 110 and an adhesive layer 130 bonded to each other by an adhesive layer 130 .
[0074] The base material 110 is prepared by the following method: weighing raw materials according to the mass ratio of polyvinyl chloride: calcium carbonate: wood: auxiliary additives = 40:20:30:10. Under the temperature condition of 80 degrees Celsius, the raw materials are mixed and stirred to obtain the mixed materials. Under the temperature condition of 200 degrees Celsius, the mixed material is extruded to obtain a plate. Among them, the auxiliary additives include: foaming agent, stabilizer and coupling agent, and the mass ratio of the three is: foaming agent:stabilizer:coupling agent=4:3:3. The foaming agent in this embodiment is an azodicarbonamide foaming agent, the stabilizer is a dibutyltin stabilizer, and the coupling agent is a titanate coupling agent.
[0075] The adhesive layer 130 is p...
Embodiment 2
[0077] This embodiment provides a method for preparing a board. The board includes a substrate 110 and an adhesive layer 130 bonded to each other by an adhesive layer 130 .
[0078]The base material 110 is prepared by the following method: weighing raw materials according to the mass ratio of polyvinyl chloride: calcium carbonate: wood: auxiliary additives = 45:20:25:10. Under the temperature condition of 90 degrees Celsius, the raw materials are mixed and stirred to obtain the mixed materials. Under the temperature condition of 210 degrees Celsius, the mixed material is extruded to obtain a plate. Among them, the auxiliary additives include: foaming agent, stabilizer and coupling agent, and the mass ratio of the three is: foaming agent:stabilizer:coupling agent=4:3:3. The foaming agent in this embodiment is an azodicarbonamide foaming agent, the stabilizer is a dioctyltin stabilizer, and the coupling agent is a silane coupling agent.
[0079] The adhesive layer 130 is prep...
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Abstract
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