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[Application Number] CN201710100213.5 [Application Date] 2017-02-23
[Publication Number] CN106928588A [Publication Date] 2017-07-07
[Applicant] Suzhou Nabeton Environmental Technology Co., Ltd. [Address] No. 999, Zhujiang South Road, Mudu Town, Wuzhong District, Suzhou City, Jiangsu Province, 215000, China
[Inventor] Pan Minghua
[Patent Agency] Beijing Huizhisheng Intellectual Property Agency (General Partnership) 11346 [Agent] Wei Xiuli
[Country/Province Code] 32
[Abstract] This invention provides a high-toughness heat-shrinkable engineered wood panel and its preparation method. The preparation method is as follows: (1) Prepare modified silicon nitride; (2) Mix PVC resin, calcium-zinc stabilizer, dioctyl phthalate, UV absorber #UV#327, and color powder in a high-speed mixer, then add kaolin, modified silicon nitride, 4,4'-diaminodiphenylmethane, sodium alcohol ether carboxylate, and Artemisia argyi seed gum, mix again, and then cool and discharge the material; (4) Use an open mill to process the above uniformly mixed material, forming triangular lumps and pulling during the process, and finally thinning the sheet; (5) Press the sheet under high temperature and pressure using a pressure forming machine, hold the pressure, cool, and then press again to obtain the engineered wood panel. The high-toughness heat-shrinkable engineered wood panel of this invention has good dimensional stability and high bending strength.
[Claim 1] A method for preparing a high-toughness, heat-shrinkable artificial board, characterized by comprising the following steps: (1) adding β# silicon nitride submicron particles to a mixed solution of ethanol and isopropanol, wherein the mass ratio of ethanol to isopropanol is 1:3, dispersing evenly at a rotation speed of 1000-1500 r/min, then placing it in a constant temperature water bath at 60-80℃, adding a titanate coupling agent, stirring for 1-4 hours, then letting it stand for 24 hours, washing and drying, wherein the titanate coupling agent is: β #Silicon nitride submicron particles: The mass ratio of the mixed solution is 3#5:100#120:500#600 to obtain modified silicon nitride; (2) Weigh the following components by weight: PVC 90#130 parts, kaolin 50#70 parts, modified silicon nitride 20#40 parts, dioctyl phthalate #25#45 parts, calcium zinc stabilizer 0.2#0.6 parts, ultraviolet absorber #UV#327 0.1#0.6 parts, color powder 1#4 parts, 4, 4'# Diaminodiphenylmethane 0.02# 0.06 parts, sodium alcohol ether carboxylate 2# 9 parts, Artemisia argyi seed gum 10# 15 parts; #(3) Mix PVC resin, calcium zinc stabilizer, dioctyl phthalate, UV absorber #UV#327, and color powder in a high-speed mixer for 8# 18# min, add kaolin, modified silicon nitride, 4,4'# diaminodiphenylmethane, sodium alcohol ether carboxylate, and Artemisia argyi seed gum, then mix for 3# 8# min, at 80 (4) The above-mentioned uniformly mixed material is milled for 8#15#min using an open mill, with the front roller temperature at 160#165℃ and the rear roller temperature at 155#160℃. During the milling process, triangular bundles are formed and traction is performed, and finally thin sheets are produced. (5) At a temperature of 130#145℃ and a pressure of 6#MPa, sheets are pressed using a pressure forming machine. After holding the pressure for 45#min, the sheet is cooled to 70℃, and then the pressure is increased to 12MPa. After cold pressing for 10#min, artificial boards are obtained.