陕西科技大学学报(自然科学版)
陝西科技大學學報(自然科學版)
협서과기대학학보(자연과학판)
JOURNAL OF SHAANXI UNIVERSITY OF SCIENCE & TECHNOLOGY
2015年
4期
7-12
,共6页
聚乙烯醇/水解胶原蛋白/苯乙烯/丙烯酸丁酯%四元共聚%改性%施胶
聚乙烯醇/水解膠原蛋白/苯乙烯/丙烯痠丁酯%四元共聚%改性%施膠
취을희순/수해효원단백/분을희/병희산정지%사원공취%개성%시효
PVA/HC/ST/BA%quaternary copolymerization%modify%surface sizing
采用聚乙烯醇(PVA)、水解胶原蛋白(HC)、苯乙烯(ST)和丙烯酸丁酯(BA)等四种单体共聚合成了一种造纸用表面施胶剂.通过单因素优化实验,以合成施胶剂对瓦楞原纸施胶后性能作为参考指标,确定了施胶剂的最佳合成条件.结果表明:当水解胶原蛋白与单体的质量比为1∶1.25(4∶5)、引发剂的用量为单体的4%(质量比)、单体中的丙烯酸丁酯和苯乙烯的比例为1:3、反应时间为3.5小时等时,合成施胶剂对纸张性能的提高最为明显.将合成的四元共聚施胶剂与其它胶液复配施胶,其结果显示:当四元共聚施胶剂单独施胶,以及其与淀粉复配后施胶时,纸张的抗张指数分别增大25.51%和25.45%;四元共聚施胶剂单独施胶以及其与淀粉复配施胶等对纸张的环压指数分别提高54.53%和54.33%,较淀粉与苯丙乳液复配施胶的效果(62.78%)稍弱;四元共聚施胶剂与苯丙乳液复配施胶、淀粉与苯丙复配施胶等对纸张的抗水性分别提高74.42%和68.61%.
採用聚乙烯醇(PVA)、水解膠原蛋白(HC)、苯乙烯(ST)和丙烯痠丁酯(BA)等四種單體共聚閤成瞭一種造紙用錶麵施膠劑.通過單因素優化實驗,以閤成施膠劑對瓦楞原紙施膠後性能作為參攷指標,確定瞭施膠劑的最佳閤成條件.結果錶明:噹水解膠原蛋白與單體的質量比為1∶1.25(4∶5)、引髮劑的用量為單體的4%(質量比)、單體中的丙烯痠丁酯和苯乙烯的比例為1:3、反應時間為3.5小時等時,閤成施膠劑對紙張性能的提高最為明顯.將閤成的四元共聚施膠劑與其它膠液複配施膠,其結果顯示:噹四元共聚施膠劑單獨施膠,以及其與澱粉複配後施膠時,紙張的抗張指數分彆增大25.51%和25.45%;四元共聚施膠劑單獨施膠以及其與澱粉複配施膠等對紙張的環壓指數分彆提高54.53%和54.33%,較澱粉與苯丙乳液複配施膠的效果(62.78%)稍弱;四元共聚施膠劑與苯丙乳液複配施膠、澱粉與苯丙複配施膠等對紙張的抗水性分彆提高74.42%和68.61%.
채용취을희순(PVA)、수해효원단백(HC)、분을희(ST)화병희산정지(BA)등사충단체공취합성료일충조지용표면시효제.통과단인소우화실험,이합성시효제대와릉원지시효후성능작위삼고지표,학정료시효제적최가합성조건.결과표명:당수해효원단백여단체적질량비위1∶1.25(4∶5)、인발제적용량위단체적4%(질량비)、단체중적병희산정지화분을희적비례위1:3、반응시간위3.5소시등시,합성시효제대지장성능적제고최위명현.장합성적사원공취시효제여기타효액복배시효,기결과현시:당사원공취시효제단독시효,이급기여정분복배후시효시,지장적항장지수분별증대25.51%화25.45%;사원공취시효제단독시효이급기여정분복배시효등대지장적배압지수분별제고54.53%화54.33%,교정분여분병유액복배시효적효과(62.78%)초약;사원공취시효제여분병유액복배시효、정분여분병복배시효등대지장적항수성분별제고74.42%화68.61%.
In this paper ,a kind of surface sizing agent for paper was copolymerized by using polyvinyl alcohol(PVA ) ,hydrolyzed collagen (HC ) ,styrene (ST )and butyl acrylate (BA ) . Make the performance of sized corrugated paper as the reference index ,the optimal synthesis conditions of synthetic sizing agent were determined by single factor optimization experi‐ment .The result shows that when the mass ratio of hydrolyzed collagen and monomer was 1∶1 .25 ,the dosage of initiator was 4% of the monomer ,the mass ratio of BA and ST was 1∶3 ,the reaction time was 3 .5 hours ,the best performance improvement of the sized paper was obtained .Surface sizing on paper was concluded with the synthetic quaternary sizing agent and other sizing agent ,it indicates that sizing with quaternary sizing agent ,and sizing with quaternary sizing agent and starch ,the tensile index of paper respectively increase 25 .51%and 25 .45% ;the paper′s ring crush index respectively increase 54 .53% and 54 .33% ,but the effect is still weaker than 62 .78% which sizing with starch and propyl benzene latex ;sizing with quaternary sizing agent and propyl benzene latex or starch and propyl benzene latex can increase the w ater‐resistance 74 .42% and 68 .61% respectively .