CN106758313A - 一种功能型热熔改性沥青防水卷材及其制备方法 - Google Patents

一种功能型热熔改性沥青防水卷材及其制备方法 Download PDF

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CN106758313A
CN106758313A CN201611102169.3A CN201611102169A CN106758313A CN 106758313 A CN106758313 A CN 106758313A CN 201611102169 A CN201611102169 A CN 201611102169A CN 106758313 A CN106758313 A CN 106758313A
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罗伟新
刘金景
吴士玮
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Wuhu Lie Beef Hill Building Energy Saving Material Co Ltd
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Abstract

一种功能型热熔改性沥青防水卷材及其制备方法,所述防水卷材由上表面涂盖料、聚酯胎、下表面涂盖料组成,其中,所述上表面改性沥青料包含以下质量分数的原料制成,石油沥青55~60%、软化剂6~10%、SBS改性剂10~15%、石油树脂2~7%、抗老化剂2~6%、填料10~20%,炭黑0~2份;所述下表面改性沥青料由以下质量份数的原料制成,石油沥青56~63%、软化剂8~10%、SBS改性剂10~14%、石油树脂3~6%、沥青降粘剂3~6%、填料8~15%。本发明还包括功能型热熔改性沥青防水卷材的制备方法。本发明之功能型热熔防水卷材具有良好的耐高低温型性、耐候性、耐穿刺、耐撕裂、耐久性,并且与外层水泥砂浆及各种粘结材料具有优异的粘结力。

Description

一种功能型热熔改性沥青防水卷材及其制备方法
技术领域
本发明涉及一种改性沥青防水卷材及其制备方法,具体涉及一种功能型热熔改性沥青防水卷材及其制备方法。
背景技术
目前,市场使用的防水卷材大部分为普通改性沥青防水卷材,还没有既易施工又抗老化性好的改性沥青卷材。因此,噩待研发一种在保证防水卷材热熔施工过程中易施工的前提下,还能确保材料具有优异的耐老化型,同时还可延缓防水卷材实际应用过程中的使用寿命的功能型热熔改性沥青防水卷材。
发明内容
本发明所要解决的技术问题是,提供一种功能型热熔改性沥青防水卷材及其制备方法,其下表面改性沥青料易热熔、上表面改性沥青料耐老化,在热熔施工过程中易出油,可节省施工时间和降低施工能耗,且具有良好的耐老化性,材料使用寿命长。
本发明解决其技术问题采用的技术方案是,一种功能型(热熔改性沥青防水卷材,由上表面涂盖料与下表面涂盖料组成,其中,上表面改性沥青料包含以下质量分数的原料制成,石油沥青55~60%、软化剂6~10%、SBS改性剂10~15%、石油树脂2~7%、抗老化剂2~6%、填料10~20%,炭黑0~2份(根据应用的需要添加,以提高其抗老化时间),下表面改性沥青料由以下质量份数的原料制成,石油沥青56~63%、软化剂8~10%、SBS改性剂10~14%、石油树脂3~6%、沥青降粘剂3~6%、填料8~15%。
进一步,所述聚酯胎规格为克重为150~250g/m2,厚度为0.8~1.5mm,所用材料均可根据技术指标的需要从市场上购买到,例如聚酯纺粘无纺布等。
进一步,所述石油沥青为90#或110#重交油石油沥青。
进一步,所述软化剂为环烷油。
进一步,所述改性剂SBS为星型SBS,分子量为20~25万,应用于沥青卷材中可以改善基质沥青自身高温易流淌、低温易脆裂的现象。例如规格为LG411/4402,韩国LG公司和燕山石化生产的星型SBS。
进一步,所述石油树脂为C5石油树脂。
进一步,所述抗老化剂为多聚磷酸(PPA),PPA加入到弹性体改性沥青中,能够与沥青和SBS分子反应,起到交联缔合作用,可以阻止SBS改性剂在基质沥青沥青中的降解,起到抗老化的作用。
进一步,所述沥青降粘剂为海澜降粘剂FHC,该降粘剂具有很好的极性基团,对沥青质具有很好的分散阻聚能力,经该降粘剂分散后的沥青质不再回聚,达到沥青涂盖料流动性好的目的。
进一步,所述填料为400目滑石粉,其形状为白色粉末,主要成分为滑石含水的硅酸镁,其作用可以增加产品形状的稳定,增加沥青材料张力强度和剪切强度,同时还能起到阻隔红外线作用,在沥青中易分散,是一种很好的沥青卷材填充材料。
本发明进一步解决其技术问题采用的技术方案是,一种功能型热熔改性沥青防水卷材的制备方法,包括以下步骤:
(1)将石油沥青、软化剂、SBS改性剂、石油树脂、抗老化剂、填料搅拌混合5~6小时,加热至170~190℃剪切共混,得到上表面涂盖料;
(2)将石油沥青、软化剂、SBS改性剂、石油树脂、沥青降粘剂、填料搅拌混合5~6小时,加热至170~190℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
本发明防水卷材,其长度、厚度等可以根据实际需要合理调整,通常为了销售、运输以及施工的简便,单位防水卷材的宽度为1000mm,防水卷材厚度为3~5mm。
本发明下表面改性沥青料热熔施工效率高、上表面改性沥青料耐老化性能好,使之防水卷材具有良好的耐高低温型性、耐候性、耐穿刺、耐撕裂、耐久性,并且与外层水泥砂浆及各种粘结材料具有优异的粘结力,适用于工业与民用建筑屋面或地下工程,施工简单快捷。
具体实施方式
下面结合实施例对本发明作进一步说明。
实施例1
(1)将90#石油沥青56%、环烷油9%、SBS411改性剂13%、C5石油树脂4%、多聚磷酸(PPA)4%、400目滑石粉14%搅拌混合5~6小时,加热至180℃剪切共混,得到上表面涂盖料;
(2)将90#石油沥青58%、环烷油8%、SBS411改性剂10%、C5石油树脂5%、海澜降粘剂FHC5%、400目滑石粉14%搅拌混合5~6小时,加热至180℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
测试实施例1制备的防水卷材理化特性:在-30℃均无裂缝、开裂等现象,上表面耐高温达到105℃,下表面达到90℃,其拉力不低于800N/50mm,接缝剥离强度不低于2.0N/mm,不透水性在0.3MPa下保持时间不低于60min,上表面人工气候老化指标按相应标准测试30天后,衰减速率明显比常规产品慢,高于GB 18242-2008产品标准要求,下表面涂盖料热熔施工过程中流动性好,粘度仅为50s·s。
实施例2
(1)将90#石油沥青55%、环烷油8%、SBS411改性剂12%、C5石油树脂4%、多聚磷酸(PPA)4%、400目滑石粉17%搅拌混合5~6小时,加热至180℃剪切共混,得到上表面涂盖料;
(2)将90#石油沥青60%、环烷油8%、SBS411改性剂12%、C5石油树脂5%、海澜降粘剂FHC5%、400目滑石粉10%搅拌混合5~6小时,加热至180℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
测试实施例1制备的防水卷材理化特性:在-30℃均无裂缝、开裂等现象,上表面耐高温达到110℃,下表面达到95℃,其拉力不低于1000N/50mm,接缝剥离强度不低于2.5N/mm,不透水性在0.3MPa下保持时间不低于90min,上表面人工气候老化指标按相应标准测试30天后,衰减速率明显比常规产品慢,高于GB 18242-2008产品标准要求,下表面涂盖料热熔施工过程中流动性好,粘度仅为50s·s。
实施例3
(1)将90#石油沥青55%、环烷油9%、SBS4402改性剂14%、C5石油树脂4%、多聚磷酸(PPA)4%、400目滑石粉14%,光稳定剂(2,2,6,6-四甲基哌啶醇)5%搅拌混合5~6小时,加热至180℃剪切共混,得到上表面涂盖料;
(2)将90#石油沥青56%、环烷油8%、SBS4402改性剂10%、C5石油树脂6%、海澜降粘剂FHC5%、400目滑石粉14%搅拌混合5~6小时,加热至180℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
测试实施例3制备的防水卷材理化特性:在-30℃均无裂缝、开裂等现象,上表面耐高温达到105℃,下表面达到95℃,其拉力不低于900N/50mm,接缝剥离强度不低于2.4N/mm,不透水性在0.3MPa下保持时间不低于90min,上表面人工气候老化指标按相应标准测试30天后,衰减速率明显比常规产品慢,高于GB 18242-2008产品标准要求,下表面涂盖料热熔施工过程中流动性好,粘度仅为40s·s。
实施例4
(1)将110#石油沥青57%、环烷油8%、SBS4402改性剂12%、C5石油树脂4%、多聚磷酸(PPA)4%、400目滑石粉15%搅拌混合5~6小时,加热至180℃剪切共混,得到上表面涂盖料;
(2)将110#石油沥青58%、环烷油8%、SBS4402改性剂13%、C5石油树脂6%、海澜降粘剂FHC 5%、400目滑石粉10%搅拌混合5~6小时,加热至180℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
测试实施例4制备的防水卷材理化特性:在-30℃均无裂缝、开裂等现象,上表面耐高温达到110℃,下表面达到95℃,其拉力不低于1000N/50mm,接缝剥离强度不低于2.8N/mm,不透水性在0.3MPa下保持时间不低于120min,上表面人工气候老化指标按相应标准测试30天后,衰减速率明显比常规产品慢,高于GB 18242-2008产品标准要求,下表面涂盖料热熔施工过程中流动性好,粘度仅为30s·s。
实施例5
(1)将90#石油沥青59%、环烷油8%、SBS4402改性剂12%、C5石油树脂4%、多聚磷酸(PPA)4%、400目滑石粉13%,光稳定剂(2,2,6,6-四甲基哌啶醇)4%搅拌混合5~6小时,加热至180℃剪切共混,得到上表面涂盖料;
(2)将90#石油沥青60%、环烷油8%、SBS4402改性剂11%、C5石油树脂6%、海澜降粘剂FHC 6%、400目滑石粉9%搅拌混合5~6小时,加热至180℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材,将基层进行处理后,按相应规范要求进行热熔施工。
测试实施例5制备的防水卷材理化特性:在-30℃均无裂缝、开裂等现象,上表面耐高温达到110℃,下表面达到95℃,其拉力不低于1000N/50mm,接缝剥离强度不低于2.6N/mm,不透水性在0.3MPa下保持时间不低于120min,上表面人工气候老化指标按相应标准测试30天后,衰减速率明显比常规产品慢,高于GB 18242-2008产品标准要求,下表面涂盖料热熔施工过程中流动性好,粘度仅为30s·s。

Claims (10)

1.一种功能型热熔改性沥青防水卷材,其特征在于,由上表面涂盖料、聚酯胎、下表面涂盖料组成,其中,所述上表面改性沥青料包含以下质量分数的原料制成,石油沥青55~60%、软化剂6~10%、SBS改性剂10~15%、石油树脂2~7%、抗老化剂2~6%、填料10~20%,炭黑0~2份;所述下表面改性沥青料由以下质量份数的原料制成,石油沥青56~63%、软化剂8~10%、SBS改性剂10~14%、石油树脂3~6%、沥青降粘剂3~6%、填料8~15%。
2.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述聚酯胎规格为克重为150~250g/m2,厚度为0.8~1.5mm的聚酯纺粘无纺布。
3.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述石油沥青为90#或110#重交油石油沥青。
4.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述软化剂为环烷油。
5.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述改性剂SBS为星型SBS,分子量为20~25万。
6.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述石油树脂为C5石油树脂。
7.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述抗老化剂为多聚磷酸。
8.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述沥青降粘剂为海澜降粘剂FHC。
9.根据权利要求1所述的功能型热熔改性沥青防水卷材,其特征在于,所述填料为400目滑石粉。
10.一种如权利要求1~9之一所述的功能型热熔改性沥青防水卷材的制备方法,其特征在于,包括以下步骤:
(1)将石油沥青、软化剂、SBS改性剂、石油树脂、抗老化剂、填料搅拌混合5~6小时,加热至170~190℃剪切共混,得到上表面涂盖料;
(2)将石油沥青、软化剂、SBS改性剂、石油树脂、沥青降粘剂、填料搅拌混合5~6小时,加热至170~190℃剪切共混,得到下表面涂盖料;
(3)分别将制得的上、下表面涂盖料相对应涂覆于聚酯胎中,按相应工艺要求及相应规格制备成改性沥青防水卷材。
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