木橡复合层积材的工艺优化及性能研究
发布时间：2018-07-14 22:26
【摘要】：为拓展木质复合材料的应用领域,解决铁路轨枕等工程领域对高性能新材料的需求,研制开发了木橡复合层积材(LLVR)。选取杨木单板(W)和氯丙橡胶、丁腈橡胶、天然橡胶3种橡胶片(R),采用W-R界面胶合工艺、偶联剂优化W-R胶合界面、W-R层间结构优化三步骤研究木橡复合层积材的最优制备工艺与结构。通过分层施胶工艺(异氰酸酯PAPI用于木材-橡胶间胶合;酚醛树脂PF用于杨木单板间胶合)获得了制造LLVR的较优工艺:橡胶优选氯丙橡胶、PAPI和PF施胶量分别为80和200 g/m2,偶联剂KH69添加量9%(基于PAPI树脂质量)。采用该工艺试制了5种结构的九层LLVR,并研究了横向压缩和耐老化性能。结果表明:在未采取任何耐久性处理条件下,LLVR具有优异的力学性能、尺寸稳定性和较好的耐老化性能,可考虑用于铁路轨枕等工程材料领域;推荐采用表层橡胶包覆的层积结构。
[Abstract]:In order to expand the application field of wood composite material and solve the demand of high performance new material in railway sleeper engineering field, the wood rubber composite laminate (LLVR) was developed. Three kinds of rubber sheets (R), such as poplar veneer (W), chloropropylene-butadiene rubber, nitrile rubber and natural rubber, were selected, and W-R interfacial bonding process was used. Optimization of W-R interlaminar structure by coupling agent the optimum preparation technology and structure of wood and rubber composite laminates were studied. The laminated sizing process (isocyanate PAPI) was used to glue between wood and rubber. The optimum process of manufacturing LLVR by PF was obtained. The sizing amounts of PAPI and PF were 80 and 200 g / m ~ 2, respectively, and the addition amount of coupling agent KH69 was 9% (based on the quality of PAPI resin). Nine layers of LLVRs with five structures were prepared by this process, and the transverse compression and aging resistance were studied. The results show that LLVR has excellent mechanical properties, dimensional stability and good aging resistance without any durability treatment. It can be used in engineering materials such as railway sleeper. The layer structure of rubber coating is recommended.
【作者单位】： 南京林业大学;浙江省德华兔宝宝装饰新材研究院;江苏德华兔宝宝装饰新材有限公司企业研究生工作站;
【基金】：江苏省科技厅2015年现代农业计划(BE2015315) 浙江省湖州市“南太湖精英计划”项目([2015]4号)
【分类号】：TB332;TS652
本文编号：2123155
[Abstract]:In order to expand the application field of wood composite material and solve the demand of high performance new material in railway sleeper engineering field, the wood rubber composite laminate (LLVR) was developed. Three kinds of rubber sheets (R), such as poplar veneer (W), chloropropylene-butadiene rubber, nitrile rubber and natural rubber, were selected, and W-R interfacial bonding process was used. Optimization of W-R interlaminar structure by coupling agent the optimum preparation technology and structure of wood and rubber composite laminates were studied. The laminated sizing process (isocyanate PAPI) was used to glue between wood and rubber. The optimum process of manufacturing LLVR by PF was obtained. The sizing amounts of PAPI and PF were 80 and 200 g / m ~ 2, respectively, and the addition amount of coupling agent KH69 was 9% (based on the quality of PAPI resin). Nine layers of LLVRs with five structures were prepared by this process, and the transverse compression and aging resistance were studied. The results show that LLVR has excellent mechanical properties, dimensional stability and good aging resistance without any durability treatment. It can be used in engineering materials such as railway sleeper. The layer structure of rubber coating is recommended.
【作者单位】： 南京林业大学;浙江省德华兔宝宝装饰新材研究院;江苏德华兔宝宝装饰新材有限公司企业研究生工作站;
【基金】：江苏省科技厅2015年现代农业计划(BE2015315) 浙江省湖州市“南太湖精英计划”项目([2015]4号)
【分类号】：TB332;TS652
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