纳米蒙脱土改性脲醛树脂耐久性研究
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摘要
采用纳米蒙脱土改性脲醛树脂,制备一种高性能环保胶黏剂。研究表明,纳米蒙脱土可以均匀分散于脲醛树脂体系中,形成的弹性体结构,对树脂具有增强、增韧作用;改性后脲醛树脂热稳定性和耐水性显著提高,改善了其在复杂环境下的使用性能;同时,改性后脲醛树脂的静态弹性模量、硬度以及动态储能模量、损耗模量均显著增加。
Developing a kind of high-performance environmental adhesive which composed by a natural nanoclay and ureaformaldehyde adhesive. Results indicated that nanoclay had a good distribution on the adhesive matrix. The good physical filling of nanoclay particles and the elastomer formed during the reaction could offer an obvious reinforcement and toughen effect on the adhesives. The nano-material positively affected the water and heat resistance of UF adhesives, thereby contributing to the functional performance of the adhesive in a complex environment. Furthermore, the static modulus, hardness and dynamic storage modulus and loss modulus of adhesives increased obviously after modification.
Developing a kind of high-performance environmental adhesive which composed by a natural nanoclay and ureaformaldehyde adhesive. Results indicated that nanoclay had a good distribution on the adhesive matrix. The good physical filling of nanoclay particles and the elastomer formed during the reaction could offer an obvious reinforcement and toughen effect on the adhesives. The nano-material positively affected the water and heat resistance of UF adhesives, thereby contributing to the functional performance of the adhesive in a complex environment. Furthermore, the static modulus, hardness and dynamic storage modulus and loss modulus of adhesives increased obviously after modification.
引文
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[4]冯桂双,李长生,唐华,等.悬浮聚合法制备纳米蒙脱土/聚合物(苯乙烯-共聚-二乙烯基苯)复合材料及性能[J].复合材料学报,2010,27(3):36-42.
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[8]陈静,陈红,马军宝,等.纳米蒙脱土改性脲醛树脂制备胶合板研究[J].森林工程,2013,29(6):156-158.
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[12]Wang H.,Zhao T.,Zhi L.,Yan Y.,Yu,Y.Synthesis of novolac/layered silicate nanocomposites by reaction exfoliation using acid-modified montmorillonite[J].Macromol.Rapid.Commun.,2002,23(1):44-48.
[13]Manfredi L.B.,Puglia D.,Tomasucci A.,Kenny J.M.,Vázquez A.Influence of clay modification on the properties of resol nanocomposites[J].Macromol.Mater.Eng.,2008,293(11):878-886.
[14]Zhou X.,Pizzi A.,Du G.The effect of nanoclay on melamine-urea-formaldehyde wood adhesives[J].J Adhes Sci.Techno.,2012,26(10-11):1341-1348.
[15]Moya R.,Rodríguez-Zú?iga A.,Vega-Baudrit J.,álvarez V.Effects of adding nano-clay(montmorillonite)on performance of polyvinyl acetate(PVAc)and ureaformaldehyde(UF)adhesives in Carapa guianensis,a tropical species[J].Int.J.Adhes.Adhes.,2015,59:62-70.
[2]詹先旭,唐周梅,程明娟,等.重组装饰材高频热压工艺的研究[J].林产工业,2018,45(1):19-23.
[3]施晓宏,陆旭晨,庞小仁,等.重组装饰材制备用改性玉米淀粉乳液-脲醛树脂胶[J].木材工业,2017,31(6):46-49.
[4]冯桂双,李长生,唐华,等.悬浮聚合法制备纳米蒙脱土/聚合物(苯乙烯-共聚-二乙烯基苯)复合材料及性能[J].复合材料学报,2010,27(3):36-42.
[5]姜卸宏.微化蒙脱土悬浮液的制备及其处理材性能和表征[D].北京:北京林业大学,2010.
[6]于晓芳,王喜明.纳米蒙脱土改性脲醛树脂胶黏剂的制备与表征[J].高分子学报,2014(9):1286.
[7]何文,张苏京,蒋身学,等.插层处理纳米蒙脱土改性脲醛树脂对胶合性能的影响[J].中国人造板,2012(11):19-21.
[8]陈静,陈红,马军宝,等.纳米蒙脱土改性脲醛树脂制备胶合板研究[J].森林工程,2013,29(6):156-158.
[9]Wang X.,Deng Y.,Wang S.,et al.Characterization of structure and nanomechanical properties of organic montmorillonite reinforced urea-formaldehyde adhesive[J].Spectroscopy and Spectral Analysis,2016,36(6):1680-1684.
[10]Oliver W.C.,Pharr G.An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J].J.Mater.Res.,1992,7(6):1564-83.
[11]Pethica J.B.,Oliver W.C.Mechanical properties of nanometer wolumes of material:use of the elastic response of small area indentation.Thin films-stresses and mechanical properties,MRS Symposium proceeding Vol.130,Materials Research Society,1989,13-23.
[12]Wang H.,Zhao T.,Zhi L.,Yan Y.,Yu,Y.Synthesis of novolac/layered silicate nanocomposites by reaction exfoliation using acid-modified montmorillonite[J].Macromol.Rapid.Commun.,2002,23(1):44-48.
[13]Manfredi L.B.,Puglia D.,Tomasucci A.,Kenny J.M.,Vázquez A.Influence of clay modification on the properties of resol nanocomposites[J].Macromol.Mater.Eng.,2008,293(11):878-886.
[14]Zhou X.,Pizzi A.,Du G.The effect of nanoclay on melamine-urea-formaldehyde wood adhesives[J].J Adhes Sci.Techno.,2012,26(10-11):1341-1348.
[15]Moya R.,Rodríguez-Zú?iga A.,Vega-Baudrit J.,álvarez V.Effects of adding nano-clay(montmorillonite)on performance of polyvinyl acetate(PVAc)and ureaformaldehyde(UF)adhesives in Carapa guianensis,a tropical species[J].Int.J.Adhes.Adhes.,2015,59:62-70.