CN105801933A - 一种膨胀纳米微球填充橡胶止水带的制备方法 - Google Patents

一种膨胀纳米微球填充橡胶止水带的制备方法 Download PDF

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CN105801933A
CN105801933A CN201610267281.6A CN201610267281A CN105801933A CN 105801933 A CN105801933 A CN 105801933A CN 201610267281 A CN201610267281 A CN 201610267281A CN 105801933 A CN105801933 A CN 105801933A
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袁春华
盛海丰
高玉刚
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Abstract

本发明公开了一种膨胀纳米微球填充橡胶止水带的制备方法,属于橡胶止水带制备技术领域。本发明取环己烷与失水山梨糖醇脂肪酸酯混合,与丙烯腈单体、乳酸等物质水浴加热,滴加过硫酸钾溶液和无水乙醇,抽滤得滤饼,经洗涤干燥碾磨过筛得膨胀纳米微球备用,取丁腈橡胶、纳米碳酸钙等物质混合密炼制得改性熔融橡胶,涂覆于玻璃板上,得改性橡胶膜,将备用的膨胀纳米微球喷覆于改性橡胶膜上,固化后再将改性熔融橡胶涂覆于改性橡胶表面,固化后剪裁收卷制得橡胶止水带。本发明的有益效果是:本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂、脱落,无二次漏水现象;防水效果好,使用寿命长。

Description

一种膨胀纳米微球填充橡胶止水带的制备方法
技术领域
本发明涉及一种膨胀纳米微球填充橡胶止水带的制备方法,属于橡胶止水带制备技术领域。
背景技术
止水带广泛应用于水利、水电、堤坝涵洞、隧道地铁、人防工事、高层建筑的地下室和停车场等工程中变形缝止水。橡胶止水带则是在浇注混凝土时被预埋在变形缝内,与混凝土连成一体,利用橡胶的高弹性和压缩变形性能,在不同载荷下产生弹性变形,从而发挥紧固密封功能,有效地防止建筑构件漏水、渗水,并起减震和缓冲作用,确保工程建筑构件的使用寿命。橡胶止水带和止水橡皮系以天然橡胶与各种合成橡胶为主要原料,掺加各种助剂及填充料,经塑炼、混炼、压制成型,该止水材料具有良好的弹性,耐磨性、耐老化性和抗撕裂性能,适应变形能力强、防水性能好,温度使用范围为-45℃~+60℃。当温度超过70℃,以及橡胶止水带受强烈的氧化作用或受油类等有机溶剂侵蚀时,均不得使用橡胶止水带。一般常在地下室外墙和后浇带施工时使用。但由于橡胶内部存在许多双键结构,造成了橡胶止水带的抗老化性能差,且随着伸缩缝、结构缝的位移、变形,止水带的撕裂、脱落、变形经常发生,造成了二次漏水,严重缩短了使用物的寿命。
发明内容
本发明所要解决的技术问题:针对橡胶止水带由于橡胶内部存在许多双键结构,造成了橡胶止水带的抗老化性能差,且随着伸缩缝位移、变形,造成了二次漏水,缩短使用物寿命的弊端,提供了一种取环己烷与失水山梨糖醇脂肪酸酯混合,与丙烯腈单体、乳酸等物质水浴加热,滴加过硫酸钾溶液和无水乙醇,抽滤得滤饼,经洗涤干燥碾磨过筛得膨胀纳米微球备用,取丁腈橡胶、纳米碳酸钙等物质混合密炼制得改性熔融橡胶,涂覆于玻璃板上,得改性橡胶膜,将备用的膨胀纳米微球喷覆于改性橡胶膜上,固化后再将改性熔融橡胶涂覆于改性橡胶表面,固化后剪裁收卷制得橡胶止水带的方法。本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂,使用寿命长。
为解决上述技术问题,本发明采用如下所述的技术方案是:
(1)按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合10~15min,制备得乳化环己烷,再按重量份数计,分别称量35~55份制备的乳化环己烷、15~20份丙烯腈单体、10~15份甲基丙烯腈、5~10份双硫代水杨酸和15~20份乳酸置于三口烧瓶中,在45~60℃下水浴加热25~30min;
(2)待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为10~15min,待滴加完成后,继续保温加热3~5h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤3~5次,再在65~80℃下干燥8~10h,随后碾磨并过筛,制备得120~150目膨胀纳米微球,备用;
(3)按重量份数计,分别称量35~55份丁腈橡胶、15~20份天然橡胶、5~10份纳米碳酸钙、2~3份抗氧剂1010、3~7份环氧大豆油和20~25份乙烯-醋酸乙烯酯共聚物置于密炼机中,在150~160℃下密炼10~15min后,将其取出并置于160~180℃下继续搅拌混合1~2h,制备得改性熔融橡胶;
(4)将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将步骤(2)制备的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为3~5MPa,负载量为10g/m2
(5)待喷覆完成后,静置固化1~2h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化1~2h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。
本发明制得的膨胀纳米微球填充橡胶止水带邵氏硬度为58~66H,拉伸强度≥15MPa,扯断伸长率≥386%,在70℃、24h下,压缩永久变形率≤32.1%,在23℃、168h下,压缩永久变形率≤18.5%,撕裂强度≥22kN/m,体积膨胀率≥98%。
本发明与其他方法相比,有益技术效果是:
(1)本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂、脱落,无二次漏水现象;
(2)防水效果好,使用寿命长。
具体实施方式
首先按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合10~15min,制备得乳化环己烷,再按重量份数计,分别称量35~55份制备的乳化环己烷、15~20份丙烯腈单体、10~15份甲基丙烯腈、5~10份双硫代水杨酸和15~20份乳酸置于三口烧瓶中,在45~60℃下水浴加热25~30min;待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为10~15min,待滴加完成后,继续保温加热3~5h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤3~5次,再在65~80℃下干燥8~10h,随后碾磨并过筛,制备得120~150目膨胀纳米微球,备用;再按重量份数计,分别称量35~55份丁腈橡胶、15~20份天然橡胶、5~10份纳米碳酸钙、2~3份抗氧剂1010、3~7份环氧大豆油和20~25份乙烯-醋酸乙烯酯共聚物置于密炼机中,在150~160℃下密炼10~15min后,将其取出并置于160~180℃下继续搅拌混合1~2h,制备得改性熔融橡胶;然后将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将备用的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为3~5MPa,负载量为10g/m2;最后待喷覆完成后,静置固化1~2h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化1~2h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。
实例1
首先按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合10min,制备得乳化环己烷,再按重量份数计,分别称量35份制备的乳化环己烷、20份丙烯腈单体、15份甲基丙烯腈、10份双硫代水杨酸和20份乳酸置于三口烧瓶中,在45℃下水浴加热25min;待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为10min,待滴加完成后,继续保温加热3h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤3次,再在65℃下干燥8h,随后碾磨并过筛,制备得120目膨胀纳米微球,备用;再按重量份数计,分别称量35份丁腈橡胶、20份天然橡胶、10份纳米碳酸钙、3份抗氧剂1010、7份环氧大豆油和25份乙烯-醋酸乙烯酯共聚物置于密炼机中,在150℃下密炼10min后,将其取出并置于160℃下继续搅拌混合1h,制备得改性熔融橡胶;然后将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将备用的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为3MPa,负载量为10g/m2;最后待喷覆完成后,静置固化1h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化1h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂、脱落,无二次漏水现象;防水效果好,使用寿命长;制得的膨胀纳米微球填充橡胶止水带邵氏硬度为58H,拉伸强度为15MPa,扯断伸长率为386%,在70℃、24h下,压缩永久变形率为32.1%,在23℃、168h下,压缩永久变形率为18.5%,撕裂强度为22kN/m,体积膨胀率为98%;热空气老化(70℃,168h):邵氏硬度为9H,拉伸强度为11MPa,扯断伸长率为298%;臭氧老化50×10-6/20%,48h,无龟裂。
实例2
首先按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合13min,制备得乳化环己烷,再按重量份数计,分别称量45份制备的乳化环己烷、18份丙烯腈单体、13份甲基丙烯腈、7份双硫代水杨酸和17份乳酸置于三口烧瓶中,在52℃下水浴加热28min;待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为13min,待滴加完成后,继续保温加热4h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤4次,再在72℃下干燥9h,随后碾磨并过筛,制备得135目膨胀纳米微球,备用;再按重量份数计,分别称量45份丁腈橡胶、18份天然橡胶、7份纳米碳酸钙、3份抗氧剂1010、5份环氧大豆油和23份乙烯-醋酸乙烯酯共聚物置于密炼机中,在155℃下密炼13min后,将其取出并置于170℃下继续搅拌混合2h,制备得改性熔融橡胶;然后将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将备用的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为4MPa,负载量为10g/m2;最后待喷覆完成后,静置固化2h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化2h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂、脱落,无二次漏水现象;防水效果好,使用寿命长;制得的膨胀纳米微球填充橡胶止水带邵氏硬度为62H,拉伸强度19MPa,扯断伸长率391%,在70℃、24h下,压缩永久变形率31.6%,在23℃、168h下,压缩永久变形率18.1%,撕裂强度26kN/m,体积膨胀率100%;热空气老化(70℃,168h):邵氏硬度8H,拉伸强度15MPa,扯断伸长率301%;臭氧老化50×10-6/20%,48h,无龟裂。
实例3
首先按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合15min,制备得乳化环己烷,再按重量份数计,分别称量55份制备的乳化环己烷、15份丙烯腈单体、10份甲基丙烯腈、5份双硫代水杨酸和15份乳酸置于三口烧瓶中,在60℃下水浴加热30min;待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为15min,待滴加完成后,继续保温加热5h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤5次,再在80℃下干燥10h,随后碾磨并过筛,制备得150目膨胀纳米微球,备用;再按重量份数计,分别称量55份丁腈橡胶、15份天然橡胶、5份纳米碳酸钙、2份抗氧剂1010、3份环氧大豆油和20份乙烯-醋酸乙烯酯共聚物置于密炼机中,在160℃下密炼15min后,将其取出并置于180℃下继续搅拌混合2h,制备得改性熔融橡胶;然后将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将备用的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为5MPa,负载量为10g/m2;最后待喷覆完成后,静置固化2h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化2h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。本发明制备步骤简单,所得产品抗老化性能好,不易变形、撕裂、脱落,无二次漏水现象;防水效果好,使用寿命长;制得的膨胀纳米微球填充橡胶止水带邵氏硬度为66H,拉伸强度25MPa,扯断伸长率399%,在70℃、24h下,压缩永久变形率30.1%,在23℃、168h下,压缩永久变形率17.8%,撕裂强度31kN/m,体积膨胀率103%;热空气老化(70℃,168h):邵氏硬度6H,拉伸强度23MPa,扯断伸长率308%;臭氧老化50×10-6/20%,48h,无龟裂。

Claims (1)

1.一种膨胀纳米微球填充橡胶止水带的制备方法,其特征在于具体制备步骤为:
(1)按质量比1:10,将环己烷与失水山梨糖醇脂肪酸酯搅拌混合,并置于烧杯中搅拌混合10~15min,制备得乳化环己烷,再按重量份数计,分别称量35~55份制备的乳化环己烷、15~20份丙烯腈单体、10~15份甲基丙烯腈、5~10份双硫代水杨酸和15~20份乳酸置于三口烧瓶中,在45~60℃下水浴加热25~30min;
(2)待加热完成后,对其滴加乳化环己烷总质量1/8的质量浓度为20%过硫酸钾溶液,控制滴加时间为10~15min,待滴加完成后,继续保温加热3~5h后,向三口烧瓶中滴加无水乙醇,待滴加至无沉淀产生后,停止滴加并对其抽滤,收集滤饼并用乙酸乙酯洗涤3~5次,再在65~80℃下干燥8~10h,随后碾磨并过筛,制备得120~150目膨胀纳米微球,备用;
(3)按重量份数计,分别称量35~55份丁腈橡胶、15~20份天然橡胶、5~10份纳米碳酸钙、2~3份抗氧剂1010、3~7份环氧大豆油和20~25份乙烯-醋酸乙烯酯共聚物置于密炼机中,在150~160℃下密炼10~15min后,将其取出并置于160~180℃下继续搅拌混合1~2h,制备得改性熔融橡胶;
(4)将上述制得的改性熔融橡胶涂覆至干净的玻璃板上,控制涂覆厚度为0.5mm,制备得改性橡胶膜,随后再用喷枪将步骤(2)制备的膨胀纳米微球喷喷覆至改性橡胶膜上,控制喷枪压强为3~5MPa,负载量为10g/m2
(5)待喷覆完成后,静置固化1~2h,随后再将改性熔融橡胶涂覆至负载膨胀纳米微球的改性橡胶膜表面,控制涂覆厚度为0.5mm,待涂覆完成后,静置固化1~2h后,对其裁剪收卷,即可制备得一种膨胀纳米微球填充橡胶止水带。
CN201610267281.6A 2016-04-27 2016-04-27 一种膨胀纳米微球填充橡胶止水带的制备方法 Withdrawn CN105801933A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110372924A (zh) * 2019-06-12 2019-10-25 李承忠 一种复合橡胶止水带

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110372924A (zh) * 2019-06-12 2019-10-25 李承忠 一种复合橡胶止水带

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