CN101407387A - 二阶反应型防水粘结材料 - Google Patents

二阶反应型防水粘结材料 Download PDF

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CN101407387A
CN101407387A CNA2008102329766A CN200810232976A CN101407387A CN 101407387 A CN101407387 A CN 101407387A CN A2008102329766 A CNA2008102329766 A CN A2008102329766A CN 200810232976 A CN200810232976 A CN 200810232976A CN 101407387 A CN101407387 A CN 101407387A
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刘艳
许颖
李伟
邵强
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CHONGQING POFUN TRAFFIC TECHNOLOGY CO., LTD.
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CHONGQING CHINA-COMMUNICATION TECHNOLOGY Co Ltd
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Abstract

本发明提供了一种二阶反应型防水粘结材料,该材料采用丁苯橡胶0.2~1.8、苯乙烯-丁二烯-苯乙烯三嵌段共聚物2.75~4.25、古马隆树脂13.75~15.45、70号的基质沥青22.6~25.6、二甲苯17.85~21.3、乙酸丁酯23~27,在高温下搅拌反应制得,本发明防水粘结性能好、施工方便、经济、耐久。由于其优良的防水粘结性能使应用更加的广泛,适用于水泥混凝土桥面、陡坡路段、钢桥面铺装沥青层间粘结层、复合式路面、隧道路面以及特殊建筑的防水粘结。

Description

二阶反应型防水粘结材料
技术领域
本发明涉及防水粘结材料,特别涉及一种反应型防水粘结材料。
背景技术
目前市场上常用的防水粘结材料主要为沥青基类材料,类型主要有水溶型防水粘结材料、溶剂型防水粘结材料以及反应型防水粘结材料。其中水溶型和溶剂型的材料防水性能、粘结性能及耐久性能较差;反应型材料在防水性能和粘结性及耐久性上得到较大的提高,如环氧粘结剂,耐久性大约在15年以上,但是造价较高,施工不方便,并且主要用于钢桥面的防水粘结以及有特殊需求的水泥混凝土桥梁。
发明内容
本发明的目的是提高一种防水粘结性能好、施工方便、经济、耐久的二阶反应型防水粘结材料,具体技术方案如下:
一种二阶反应型防水粘结材料,其特征是按下述方法制备:
(1)、按下述重量份数称取各种组分备用:丁苯橡胶0.2~1.8、苯乙烯-丁二烯-苯乙烯三嵌段共聚物2.75~4.25、  古马隆树脂13.75~15.45、70号基质沥青22.6~25.6、二甲苯17.85~21.3、乙酸丁酯23~27;其中所述丁苯橡胶中结合苯乙烯含量是22.5~24.5%,拉伸强度≥22 Mpa,扯断伸长率≥400%;所述苯乙烯-丁二烯-苯乙烯三嵌段共聚物的结构类型是线型,S/B比值是30/70;所述古马隆树脂软化点:80~90℃,水分含量小于0.3%;所述70号基质沥青针入度:60~80,软化点:43~46℃,15℃延度≥40,闪点≥230℃;所述二甲苯每100mL蒸发残留物≤5mg;所述乙酸丁酯水分含量小于0.1%,蒸发残留≤0.002%;
(2)、将苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂、丁苯橡胶投入反应釜中,分别用泵抽入二甲苯和乙酸丁酯,搅拌、加热升温至70~90℃,搅拌3~5小时,搅拌速度是80~130转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,按所述重量用泵送入反应釜中,控制反应温度为80~90℃,搅拌1~3小时,搅拌速度是80~130转/分钟,待其自然冷却即可。
在冬季气温较低的情况下,可以在步骤(3)中待温度冷却至65℃时加入重量份数是9.85~11.25的乙酸乙酯搅拌混匀,这样可以提高成膜速度。所述乙酸乙酯水分含量应≤0.1,蒸发残留≤0.001%,外观看是透明的液体,无悬浮杂质。
为了缩短步骤(2)的反应时间,先将丁苯橡胶和二甲苯按重量比1∶6的比例投入反应釜,加热升温至80℃,搅拌溶解反应7小时制成丁苯橡胶浓缩液备用。在制备本发明材料时,直接取丁苯橡胶浓缩液,与苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)、古马隆树脂混合搅拌混匀,加热升温至70~90℃,搅拌时间缩短到1~2小时,搅拌速度是80~130转/分钟。丁苯橡胶和二甲苯各自的总含量不发生变化,按1∶6的比例取样后剩余的二甲苯仍然在步骤(2)中用泵抽入反应釜。
其中步骤(1)所述丁苯橡胶最好采用的型号是1502。
其中步骤(1)苯乙烯-丁二烯-苯乙烯三嵌段共聚物(SBS)最好采用的型号是791-H。
本发明可采用人工涂布和喷洒两种方式进行。
(1)人工涂布
施工前,将其倒入适当大小的容器中,轻微搅拌3~5min,由操作人员用滚筒将其均匀地涂布于水泥混凝土或其它处置基面上,应注意尽量滚涂均匀。一般推荐采用该方式。
(2)喷洒施工
面积不大时,可人工手持喷枪施工,由操作人员手持喷枪,均匀地涂布。面积较大时,也可采用沥青洒布车进行洒布,但需严格控制洒布量,洒布需均匀。值得注意的是采用喷洒施工时,洒布完后要及时清洗管道,以免堵塞管道,同时注意使用大桶时必须搅拌均匀,以防止空气倾入。
为达到良好的施工效果,本发明需分两次实施,常温下第一次和第二次实施之间的时间间隔应在4~8小时,待第二次施工结束后12小时,即可进行沥青层的施工。
本发明二阶反应型防水粘结材料外观是黑色粘稠液体,其中含有渗透性材料,这些渗透性材料可以渗透到水泥混凝土毛细孔5mm~15mm深度,充分与水泥混凝土中碱物质与气体产生固化反应,不仅可以起到修复水泥混凝土微缺陷的作用,还可以堵塞渗水孔,起到良好的防水效果,渗透基体同时与界面防水粘结层形成钉子效应,显著提高粘结、剪切强度。
其内还含有石油基活性反应物质,充分接触空气中的O2、SO2等活性气体即发生共聚性物理化学反应即一阶反应,生成一定强度的弹性胶质材料,使防水粘结层本身形成初步的内聚力,可以有效抵抗防水粘结层的脱层、起皮以及车辆碾破,同时使防水粘结层不会完全固化反应,否则容易导致与面层沥青混凝土难以粘结。初步固化的防水粘结层在高温(高于100℃)沥青混凝土的作用下会产生微溶化分布,在碾压作用下骨料大颗粒嵌入防水粘结层中,此时发生二阶反应形成均匀分布的剪力键;同时,高温加速二阶反应的快速进行,生成弹塑性的防水粘结层,内聚力进一步提高,可以抵抗自身的剪切破坏,避免热沥青铺装过程中对防水粘结层的刺破作用,使面层沥青混凝土与水泥混凝土之间形成良好的防水粘结层,弹塑性防水粘结基面具有比沥青混凝土路面更持久的耐久性,可以提高建筑结构的耐久性与安全性。剪切力、粘结力同时达到1.0Mpa以上,甚至达到或接近热拌沥青混凝土内聚力大小。
本发明的有益效果是:本发明防水粘结性能好、施工方便、经济、耐久。采用人工涂布、喷洒或机械喷洒施工,施工方便、快捷;在生产成本上比环氧粘结剂低10倍。由于其优良的防水粘结性能使应用更加的广泛,适用于水泥混凝土桥面、陡坡路段、钢桥面铺装沥青层间粘结层、复合式路面、隧道路面以及特殊建筑的防水粘结。
具体实施例(共5例)
实施例1
(1)、按下述重量(千克)称取符合条件的各种组分备用:型号是1502的丁苯橡胶1.8,型号是791-H的苯乙烯-丁二烯-苯乙烯三嵌段共聚物4.25,古马隆树脂15.45,70号基质沥青25.6,二甲苯21.3,乙酸丁酯27;
(2)、将苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂、丁苯橡胶投入反应釜中,分别用泵抽入二甲苯和乙酸丁酯,搅拌、加热升温至90℃,搅拌5小时,搅拌速度是130转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,用泵送入反应釜中,控制反应温度为80℃,搅拌3小时,搅拌速度是130转/分钟,待其自然冷却即可。
实施例2
(1)、按下述重量(千克)称取符合条件的各种组分备用:丁苯橡胶0.2,苯乙烯-丁二烯-苯乙烯三嵌段共聚物2.75,古马隆树脂13.75,70号基质沥青22.6,二甲苯17.85,乙酸丁酯23;
(2)、将苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂、丁苯橡胶投入反应釜中,分别用泵抽入二甲苯和乙酸丁酯,搅拌、加热升温至70℃,搅拌3小时,搅拌速度是80转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,用泵送入反应釜中,控制反应温度为90℃,搅拌3小时,搅拌速度是80转/分钟,待其自然冷却至65℃时加入重量是9.85千克的乙酸乙酯,搅拌、混匀、冷却即可。
实施例3
(1)、按下述重量(千克)称取符合条件的各种组分备用:丁苯橡胶1.0、苯乙烯-丁二烯-苯乙烯三嵌段共聚物3.5、古马隆树脂14.5、70号基质沥青23.5、二甲苯20、乙酸丁酯25;
(2)、将苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂、丁苯橡胶投入反应釜中,分别用泵抽入二甲苯和乙酸丁酯,搅拌、加热升温至80℃,搅拌4小时,搅拌速度是100转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,用泵送入反应釜中,控制反应温度为85℃,搅拌2小时,搅拌速度是100转/分钟,待其自然冷却待其自然冷却至65℃时加入重量是11.25千克的乙酸乙酯搅拌混匀即可。
实施例4
(1)、按下述重量(千克)称取符合条件的各种组分备用:丁苯橡胶1.5,苯乙烯-丁二烯-苯乙烯三嵌段共聚物3.2古,马隆树脂15,70号基质沥青24,二甲苯20,乙酸丁酯24;
(2)、先将丁苯橡胶和二甲苯按重量比1∶6的比例(即丁苯橡胶1.5千克,二甲苯9千克)投入反应釜,加热升温至80℃,搅拌溶解反应7小时制成丁苯橡胶浓缩液后再加入苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂,分别用泵抽入剩余的二甲苯和乙酸丁酯,加热升温至85℃,搅拌1小时,搅拌速度是90转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,按所述重量用泵送入反应釜中,控制反应温度为86℃,搅拌2小时,搅拌速度是100转/分钟,待其自然冷却待其自然冷却至65℃时加入重量是11.25千克的乙酸乙酯搅拌混匀即可。
实施例5
(1)、按下述重量(千克)称取符合条件的各种组分备用:丁苯橡胶1.2,苯乙烯-丁二烯-苯乙烯三嵌段共聚物4.0、古马隆树脂15.25、70号基质沥青25.0、二甲苯20.5、乙酸丁酯25.5;
(2)、先将丁苯橡胶和二甲苯按重量比1∶6的比例(即丁苯橡胶1.2千克,二甲苯7.2千克)投入反应釜,加热升温至80℃,搅拌溶解反应7小时制成丁苯橡胶浓缩液后再加入苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂,分别用泵抽入剩余的二甲苯和乙酸丁酯,加热升温至80℃,搅拌1小时,搅拌速度是90转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,用泵送入反应釜中,控制反应温度为84℃,搅拌3小时,搅拌速度是130转/分钟,待其自然冷却即可。

Claims (5)

1、一种二阶反应型防水粘结材料,其特征是按下述方法制备:
(1)、按下述重量份数称取各种组分备用:丁苯橡胶0.2~1.8、苯乙烯-丁二烯-苯乙烯三嵌段共聚物2.75~4.25、古马隆树脂13.75~15.45、70号基质沥青22.6~25.6、二甲苯17.85~21.3、乙酸丁酯23~27;其中所述丁苯橡胶中结合苯乙烯含量是22.5~24.5%,拉伸强度≥22Mpa,扯断伸长率≥400%;所述苯乙烯-丁二烯-苯乙烯三嵌段共聚物的结构类型是线型,S/B比值是30/70;所述古马隆树脂软化点:80~90℃,水分含量小于0.3%;所述70号基质沥青针入度:60~80,软化点:43~46℃,15℃延度≥40,闪点≥230℃;所述二甲苯每100mL蒸发残留物≤5mg;所述乙酸丁酯水分含量小于0.1%,蒸发残留≤0.002%;
(2)、将苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂、丁苯橡胶投入反应釜中,分别用泵抽入二甲苯和乙酸丁酯,搅拌、加热升温至70~90℃,搅拌3~5小时,搅拌速度是80~130转/分钟;
(3)、将70号的基质沥青存储在130℃恒温的储罐中,按所述重量用泵送入反应釜中,控制反应温度为80~90℃,搅拌1~3小时,搅拌速度是80~130转/分钟,待其自然冷却即可。
2、如权利要求1所述的二阶反应型防水粘结材料,其特征是步骤(3)中待温度冷却至65℃时加入重量份数是9.85~11.25的乙酸乙酯搅拌混匀;所述乙酸乙酯水分含量应≤0.1,蒸发残留≤0.001%。
3、如权利要求1所述的二阶反应型防水粘结材料,其特征是先将丁苯橡胶和二甲苯按重量比1∶6的比例投入反应釜,加热升温至80℃,搅拌溶解反应7小时制成丁苯橡胶浓缩液后再加入苯乙烯-丁二烯-苯乙烯三嵌段共聚物、古马隆树脂,分别用泵抽入剩余的二甲苯和乙酸丁酯,加热升温至70~90℃,搅拌1~2小时,搅拌速度是80~130转/分钟,然后进行步骤(3)。
4、如权利要求1所述的二阶反应型防水粘结材料,其特征是步骤(1)丁苯橡胶型号是1502。
5、如权利要求1所述的二阶反应型防水粘结材料,其特征是步骤(1)苯乙烯-丁二烯-苯乙烯三嵌段共聚物的型号是791-H。
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CN102391827A (zh) * 2011-08-12 2012-03-28 重庆中交科技股份有限公司 环保型二阶反应型防水粘结材料及其制备方法
CN109555019A (zh) * 2019-01-10 2019-04-02 广东省路桥建设发展有限公司 多浆型沥青混合料修补钢桥面沥青铺装的方法
CN110117425A (zh) * 2019-05-13 2019-08-13 北京交通大学 一种隧道修复工程用防水涂料

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CN1583915A (zh) * 2004-05-28 2005-02-23 陈伟忠 反应型聚合物水泥防水涂料及其制备方法
CN1264926C (zh) * 2004-10-29 2006-07-19 余建国 Sbs改性沥青高自粘防水卷材及其生产工艺

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CN102391827A (zh) * 2011-08-12 2012-03-28 重庆中交科技股份有限公司 环保型二阶反应型防水粘结材料及其制备方法
CN109555019A (zh) * 2019-01-10 2019-04-02 广东省路桥建设发展有限公司 多浆型沥青混合料修补钢桥面沥青铺装的方法
CN110117425A (zh) * 2019-05-13 2019-08-13 北京交通大学 一种隧道修复工程用防水涂料

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