H-MMT投料时刻、投料比对PF树脂胶粘剂性能的影响
|
摘要
对MMT(蒙脱土)进行酸化处理制备H-MMT,再将H-MMT以原位聚合的方式分阶段、分份量投入PF(酚醛)树脂合成体系,制备了H-MMT改性PF树脂胶粘剂,考察H-MMT投料时刻、投料比对胶粘剂性能的影响。研究结果表明:胶粘剂的游离甲醛含量、游离酚含量、固化时间随H-MMT投料比的增加呈先降后升的趋势,投料时刻对胶粘剂性能影响较大;第二阶段、1%投料比改性的PF树脂胶粘剂游离甲醛、游离酚含量分别为0.102%和1.24%,固化时间为423 s,综合性能良好;改性胶粘剂中蒙脱土片层可能以剥离或剥离与插层共存的状态分散在树脂体系中;H-MMT改性的PF树脂胶粘剂为高邻位结构树脂,树脂中含有大量的亚甲基和亚甲基醚键基团。
The acidification treatment of montmorillonite(H-MMT)was first carried out,and then the H-MMT modified phenol-formaldehyde(PF)resin adhesives were prepared by in-situ polymerization by adding H-MMT in stages and in portions into the PF resin synthesis system. The effects of feeding time and feeding ratio of H-MMT on performance of PF resin adhesives were investigated. The research results showed that the free formaldehyde content,free phenol content and curing time of the adhesive decreased firstly and then increased with the increasing of H-MMT feeding ratio,and the feeding time had significant influence on the performance of the adhesive. The second stage and the 1% feeding ratio of modified PF resin adhesive had good comprehensive performance,of which the free formaldehyde and free phenol content were 0.102% and 1.24% respectively,and the curing time was 423 s. The montmorillonite layer in the modified adhesive might be dispersed in the resin system in thestate of peeling or peeling and intercalation. The H-MMT modified PF resin adhesive was a highly ortho-structuredresin containing a large amount of methylene and methylene ether bond groups.
The acidification treatment of montmorillonite(H-MMT)was first carried out,and then the H-MMT modified phenol-formaldehyde(PF)resin adhesives were prepared by in-situ polymerization by adding H-MMT in stages and in portions into the PF resin synthesis system. The effects of feeding time and feeding ratio of H-MMT on performance of PF resin adhesives were investigated. The research results showed that the free formaldehyde content,free phenol content and curing time of the adhesive decreased firstly and then increased with the increasing of H-MMT feeding ratio,and the feeding time had significant influence on the performance of the adhesive. The second stage and the 1% feeding ratio of modified PF resin adhesive had good comprehensive performance,of which the free formaldehyde and free phenol content were 0.102% and 1.24% respectively,and the curing time was 423 s. The montmorillonite layer in the modified adhesive might be dispersed in the resin system in thestate of peeling or peeling and intercalation. The H-MMT modified PF resin adhesive was a highly ortho-structuredresin containing a large amount of methylene and methylene ether bond groups.
引文
[1]王春鹏,赵临五.酚醛树脂胶粘剂的改性[J].林产化学与工业,1999,19(2):77-82.
[2]QIAO W,LI S,GUO G,et al.Synthesis and characterization of phenol-formaldehyde resin using enzymatic hydrolysis lignin[J].Journal of Industrial and Engineering Chemistry,2015,21(1):1417-1422.
[3]顾继友.我国木材胶粘剂的开发与研究进展[J].林产工业,2017,44(1):6-9;19.
[4]ZHANG W,MA Y,XU Y,et al.Lignocellulosic ethanol residue-based lignin-phenol-formaldehyde resin adhesive[J].International Journal of Adhesion and Adhesives,2013,40:11-18.
[5]郭江山,曾秋梅,王淑华,等.插层聚合线性酚醛树脂/有机改性蒙脱土纳米复合材料的研究[J].北京化工大学学报,2001,28(2):34-36.
[6]王雅珍,张银银,刘晓辉,等.酚醛树脂纳米复合材料的研究进展[J].化学与黏合,2016,38(2):130-133.
[7]杜官本,雷洪,赵伟刚,等.尿素用量对苯酚-尿素-甲醛共缩聚树脂的影响[J].北京林业大学学报,2009,31(2):122-127.
[8]KHAN M A,ASHRAF S M.Studies on thermal characterization of lignin substituted phenol formaldehyde resin as wood adhesives[J].Journal of Thermal Analysis and Calorimetry,2007,89(3):993-1000.
[9]曹明,雷洪,杜官本.蒙脱土对脲醛树脂性能的影响[J].中国胶粘剂,2013,22(1):1-4.
[10]MAY M,WANG H M,AKID R.Effects of the addition of inorganic nanoparticles on the adhesive strength of a hybrid sol-gel epoxy system[J].International Journal of Adhesion and Adhesives,2010,30(6):505-512.
[11]于晓芳,王喜明.有机蒙脱土改性脲醛树脂胶粘剂制备及结构表征[J].高分子学报,2014(9):1286-1291.
[12]VEIGEL S,MüLLER U,KECKES J,et al.Cellulose nanofibrils as filler for adhesives:Effect on specific fracture energy of solid wood-adhesive bonds[J].Cellulose,2011,18(5):1227-1237.
[13]马素云,朱正吼,刘晓勤,等.酸化处理对蒙脱土插层反应的影响及性能表征[J].功能材料,2011,42(11):2001-2004.
[14]高良军.柱撑酸化蒙脱土催化合成丙烯酸正丁酯的研究[J].浙江海洋学院学报,2014,33(5):473-477.
[15]KABOORANI A,RIEDL B.Effects of adding nano-clay on performance of polyvinyl acetate(PVA)as a wood adhesive[J].Composites Part A:Applied Science and Manufacturing,2011,42(8):1031-1039.
[2]QIAO W,LI S,GUO G,et al.Synthesis and characterization of phenol-formaldehyde resin using enzymatic hydrolysis lignin[J].Journal of Industrial and Engineering Chemistry,2015,21(1):1417-1422.
[3]顾继友.我国木材胶粘剂的开发与研究进展[J].林产工业,2017,44(1):6-9;19.
[4]ZHANG W,MA Y,XU Y,et al.Lignocellulosic ethanol residue-based lignin-phenol-formaldehyde resin adhesive[J].International Journal of Adhesion and Adhesives,2013,40:11-18.
[5]郭江山,曾秋梅,王淑华,等.插层聚合线性酚醛树脂/有机改性蒙脱土纳米复合材料的研究[J].北京化工大学学报,2001,28(2):34-36.
[6]王雅珍,张银银,刘晓辉,等.酚醛树脂纳米复合材料的研究进展[J].化学与黏合,2016,38(2):130-133.
[7]杜官本,雷洪,赵伟刚,等.尿素用量对苯酚-尿素-甲醛共缩聚树脂的影响[J].北京林业大学学报,2009,31(2):122-127.
[8]KHAN M A,ASHRAF S M.Studies on thermal characterization of lignin substituted phenol formaldehyde resin as wood adhesives[J].Journal of Thermal Analysis and Calorimetry,2007,89(3):993-1000.
[9]曹明,雷洪,杜官本.蒙脱土对脲醛树脂性能的影响[J].中国胶粘剂,2013,22(1):1-4.
[10]MAY M,WANG H M,AKID R.Effects of the addition of inorganic nanoparticles on the adhesive strength of a hybrid sol-gel epoxy system[J].International Journal of Adhesion and Adhesives,2010,30(6):505-512.
[11]于晓芳,王喜明.有机蒙脱土改性脲醛树脂胶粘剂制备及结构表征[J].高分子学报,2014(9):1286-1291.
[12]VEIGEL S,MüLLER U,KECKES J,et al.Cellulose nanofibrils as filler for adhesives:Effect on specific fracture energy of solid wood-adhesive bonds[J].Cellulose,2011,18(5):1227-1237.
[13]马素云,朱正吼,刘晓勤,等.酸化处理对蒙脱土插层反应的影响及性能表征[J].功能材料,2011,42(11):2001-2004.
[14]高良军.柱撑酸化蒙脱土催化合成丙烯酸正丁酯的研究[J].浙江海洋学院学报,2014,33(5):473-477.
[15]KABOORANI A,RIEDL B.Effects of adding nano-clay on performance of polyvinyl acetate(PVA)as a wood adhesive[J].Composites Part A:Applied Science and Manufacturing,2011,42(8):1031-1039.