CN108250912A - 一种韧性耐老化路面防滑材料及施工方法 - Google Patents
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Abstract
本发明涉及一种韧性耐老化路面防滑材料及施工方法,属于道路施工技术领域,包括从下往上依次设置的质量百分比为3‑5%的粘接底涂层、83‑94%的弹性耐磨层、3‑12%的防滑骨料层;其中,粘接底涂层包括质量百分比为75%的双酚A型环氧树脂、25%的乙二胺加成改性脂肪胺;弹性耐磨层包含质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺固化剂3:1比例混合物、0.05%的2,4‑二羟基二苯甲酮及阻胺类光稳定剂的2:1混合物、8%的橡胶颗粒、36.95%的石英粉;防滑骨料层包含质量比为27%单组份聚脲涂料、73%聚甲醛塑料颗粒。结合特殊的施工方法,本发明具备耐老化、防滑性能优异、与路面粘结性能优异、耐污、防水、耐酸碱、环保、施工便捷等优点。
Description
技术领域
本发明涉及道路施工技术领域,尤其涉及一种韧性耐老化路面防滑材料及施工方法。
背景技术
道路抗滑性能不足是威胁交通安全的主要原因之一,尤其在连续陡坡、急弯道尤其是湿滑的陡坡山道,常有因道路防滑性能不佳造成的车辆滑脱以及由于车辆的连续制动进而制动失效造成的严重事故发生。目前常见的道路防滑铺装材料主要有改性沥青、乳化沥青、环氧树脂等有机聚合物防滑路面层等。以上抗滑涂层对轮胎的摩阻力主要依赖铺设材料本身或表层防滑骨料,防滑层破损和防滑层污染极易导致防滑层失效。其中改性沥青高温性能、与老旧路面粘接性能差,在使用过程中极易出现脱落现象,且对路面标高提高明显;环氧树脂系列防滑材料粘接性能优异、抗渗性能好但耐候性差,受紫外线及气候影响易出现脆性破坏,老化脱落现象。且以上路面防滑材料抗滑涂层均为刚性涂层,几乎不发生形变,对轮胎的摩阻力主要依赖铺设材料本身或表层防滑骨料,防滑机制单一、受重压冲击易断裂、抗滑层破损、老化脱落和环境污染等因素都会使铺设材料的抗滑性能都会大幅下降甚至消失。
如中国专利申请号为:CN201320039564.7的实用新型公布了一种防滑路面,包括树脂基层和镶嵌于所述树脂基层中用于提高硬度与增加摩擦的骨料,通过采用彩色的所述骨料,镶嵌于所述树脂基层中,从而使所述防滑路面呈现出颜色,具有指示的功能。该实用新型的硬度较高,耐压,但是缺乏耐候性,受紫外线和气候的影响较大。
又如中国专利申请号为:CN201610838275.1的发明公布了一种耐磨防滑路面制品及其制备方法,涉及建筑材料领域。该路面制品包括面层和底层,所述面层的原料组分包括电炉滚筒渣集料、水泥;底层的原料组分的组成为水泥、转炉滚筒渣集料、石粉、外加剂。本发明采用电炉滚筒渣、转炉滚筒渣、石屑工业废弃物作为原材料制备路面制品,所得路面制品在保持质量的同时,增加了耐磨、防滑的功能,提升了制品使用寿命和道路安全性能,并且有效利用了工业废弃物。但是其耐磨层缺乏韧性,且易破损脱落。
发明内容
本发明的目的是针对现有技术的不足,提供一种韧性耐老化路面防滑材料及施工方法,改善现有刚性防滑层受重压冲击易断裂,防滑层易破损、防滑性能受环境污染影响大等缺点,提高防滑层长期运行的可靠性。
一种韧性耐老化路面防滑材料,包括从下往上依次设置的质量百分比为3-5%的粘接底涂层、83-94%的弹性耐磨层、3-12%的防滑骨料层;其中,粘接底涂层包括质量百分比为75%的双酚A型环氧树脂、25%的乙二胺加成改性脂肪胺;弹性耐磨层包含质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺3:1比例混合物、0.05%的2,4-二羟基二苯甲酮及阻胺类光稳定剂的2:1混合物、8%的橡胶颗粒、36.95%的石英粉;防滑骨料层包含质量比为27%单组份聚脲涂料、73%聚甲醛塑料颗粒。
进一步地,双酚A型环氧树脂能够采用双酚F型树脂、多缩水甘油醚环氧树脂的一种或双酚A型环氧树脂、双酚F型树脂、多缩水甘油醚环氧树脂任意比例混合物代替。
进一步地,所述端羧基丁腈橡胶改性环氧树脂能够采用聚氨酯改性环氧树脂、多缩水甘油醚环氧树脂的一种或端羧基丁腈橡胶改性环氧树脂、聚氨酯改性环氧树脂、多缩水甘油醚环氧树脂任意比例混合物代替;所述橡胶颗粒为改性的邵氏硬度大于60的废旧轮胎胎面胶,经表面处理而成的粒径1-3mm颗粒;所述石英粉能够采用粉煤灰、钛白粉、滑石粉、白炭黑中的一种或多种任意比例混合物代替。
进一步地,所述单组份聚脲涂料能够用端羧基丁腈橡胶改性环氧、改性聚醚胺和乙二胺加成改性脂肪胺组成的混合物、聚氨酯改性环氧、改性聚醚胺和乙二胺加成改性脂肪胺组成的混合物的任意一种代替。
进一步地,所述聚甲醛塑料颗粒能够用尼龙颗粒、ABS塑料中的一种或混合颗粒代替;所述聚甲醛塑料颗粒粒径为1-3mm、洛氏硬度大于100R、断裂强度大于300kg/cm2。
一种韧性耐老化路面防滑材料的施工方法,包括如下步骤:
步骤1:用路面切割机对施工区域基础路面进行切割,槽深度为2-3mm,采用路面研磨机对切割区域进行打磨,打磨深度为2mm;除去灰尘,清洁切割区域;
步骤2:以3:1的比例将双酚A型环氧树脂、乙二胺加成改性脂肪胺充分搅匀形成界面粘结剂,用羊毛滚筒或毛刷在处理好的混凝土基面上涂刷,形成粘接底涂层,涂覆率为0.2-0.3kg/m2,保持涂刷均匀,施工温度保持高于5℃;20分钟后,进行下一道施工程序;
步骤3:将质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺3:1比例混合物、0.05%的2,4-二羟基二苯甲酮及阻胺类光稳定剂的2:1比例混合物、8%的橡胶颗粒、36.95%的石英粉,混合均匀,摊铺于上述粘接底涂层上,形成弹性耐磨层,厚度4-6mm,施工温度保持高于5℃,弹性耐磨层边角与路基接触部分用抹刀平滑衔接,施工完成30分钟后进行下一道施工;
步骤4:将27%的聚脲涂料与73%的聚甲醛塑料颗粒拌合均匀,均匀摊铺于弹性耐磨层上,厚度2-3mm,用抹刀轻度挤压,使塑料颗粒部分镶嵌于弹性耐磨层。
进一步的,所述步骤3中弹性耐磨层的橡胶颗粒做表面处理,将橡胶颗粒置于5%稀盐酸搅拌清洗2h后烘干,加入到溶解有硅烷偶联剂的二氯甲烷溶液中搅拌10min后取出烘干。
本发明的有益效果是:
1、该新型路面防滑材料采用改性橡胶颗粒和树脂增韧改性提高了材料的粘弹性。
2、通过防滑材料承压形变增大与轮胎的接触面积提高路面的阻尼性能和耐重压破坏性能,从而进一步增强该材料的抗滑能力和耐久性。
3、特殊的组分配比使所述防滑材料具备耐老化、防滑性能优异、与路面粘结性能优异、耐沾污、防水、耐酸碱、环保、施工便捷等优点。
附图说明
图1为所述韧性耐老化路面防滑材料的整体结构示意图。
图中:1-基础路面、2-粘接底涂层、3-弹性耐磨层、4-防滑骨料层。
具体实施方式
下面结合说明书附图对本发明做进一步说明。
实施例1
所述韧性耐老化路面防滑材料包括从下往上依次设置的3%的粘接底涂层2、85%的弹性耐磨层3、12%的防滑骨料层4。
粘接底涂层2组分包括:底涂粘接剂A组分:质量比为65%的环氧树脂、10%的1,4-丁二醇二缩水甘油醚;底涂粘接剂B:25%的乙二胺加成改性脂肪胺。
弹性耐磨层3组分包括,质量比为35%的弹性树脂:端羧基丁腈橡胶改性环氧树脂,20%的增韧固化剂:聚醚胺和乙二胺加成改性脂肪胺3:1比例混合物,0.05%的耐老化助剂:紫外线吸收剂:2,4-二羟基二苯甲酮及光稳定剂:阻胺类光稳定剂,2:1比例混合物,8%的增韧填料:改性橡胶颗粒,26.7%粒径为30-50μm的石英粉、1%的钛白粉或金红石、8.95%的滑石粉、0.3%的白炭黑。
防滑骨料层4组分包括:27%的单组份聚脲涂料和73%的聚甲醛塑料颗粒。
一种韧性耐老化路面防滑材料的施工方法,包括如下步骤:
步骤1:用路面切割机对施工区域基础路面进行切割,槽深度为2-3mm,采用路面研磨机对切割区域进行打磨,打磨深度为2mm;除去灰尘,清洁切割区域;
步骤2:以3:1的比例将双酚A型环氧树脂、乙二胺加成改性脂肪胺充分搅匀形成界面粘结剂,用羊毛滚筒或毛刷在处理好的混凝土基面上涂刷,形成粘接底涂层,涂覆率为0.2-0.3kg/m2,保持涂刷均匀,施工温度保持高于5℃;20分钟后,进行下一道施工程序;
步骤3:将质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺3:1比例混合物、0.05%的2,4-二羟基二苯甲酮及阻胺类光稳定剂的2:1比例混合物、8%的橡胶颗粒、36.95%的石英粉,混合均匀,摊铺于上述粘接底涂层上,形成弹性耐磨层,厚度4-6mm,施工温度保持高于5℃,弹性耐磨层边角与路基接触部分用抹刀平滑衔接,施工完成30分钟后进行下一道施工;
步骤4:将27%的聚脲涂料与73%的聚甲醛塑料颗粒拌合均匀,均匀摊铺于弹性耐磨层上,厚度2-3mm,用抹刀轻度挤压,使塑料颗粒部分镶嵌于弹性耐磨层。
进一步的,所述步骤3中弹性耐磨层的橡胶颗粒做表面处理,将橡胶颗粒置于5%稀盐酸搅拌清洗2h后烘干,加入到溶解有硅烷偶联剂的二氯甲烷溶液中搅拌10min后取出烘干。
实施例路面防滑材料的主要性能
本发明并不限于上述实施方式,在不背离本发明的实质内容的情况下,本领域技术人员可以想到的任何变形、改进、替换均落入本发明的保护范围。
Claims (7)
1.一种韧性耐老化路面防滑材料,其特征在于,包括从下往上依次设置的质量百分比为3-5%的粘接底涂层、83-94%的弹性耐磨层、3-12%的防滑骨料层;其中,粘接底涂层包括质量百分比为75%的双酚A型环氧树脂、25%的乙二胺加成改性脂肪胺;弹性耐磨层包含质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺固化剂3:1比例混合物、0.05%的2,4-二羟基二苯甲酮及阻胺类光稳定剂的2:1混合物、8%的橡胶颗粒、36.95%的石英粉;防滑骨料层包含质量比为27%单组份聚脲涂料、73%聚甲醛塑料颗粒。
2.根据权利要求1所述的一种韧性耐老化路面防滑材料,其特征在于,所述双酚A型环氧树脂能够采用双酚F型树脂、多缩水甘油醚环氧树脂的一种或双酚A型环氧树脂、双酚F型树脂、多缩水甘油醚环氧树脂任意比例混合物代替。
3.根据权利要求1所述的一种韧性耐老化路面防滑材料,其特征在于,所述端羧基丁腈橡胶改性环氧树脂能够采用聚氨酯改性环氧树脂、多缩水甘油醚环氧树脂的一种或端羧基丁腈橡胶改性环氧树脂、聚氨酯改性环氧树脂、多缩水甘油醚环氧树脂任意比例混合物代替;所述橡胶颗粒为改性的邵氏硬度大于60的废旧轮胎胎面胶,经表面处理而成的粒径1-3mm颗粒;所述石英粉能够采用粉煤灰、钛白粉、滑石粉、白炭黑中的一种或多种任意比例混合物代替。
4.根据权利要求1所述的一种韧性耐老化路面防滑材料,其特征在于,所述单组份聚脲涂料能够用端羧基丁腈橡胶改性环氧、改性聚醚胺和乙二胺加成改性脂肪胺组成的混合物、聚氨酯改性环氧、改性聚醚胺和乙二胺加成改性脂肪胺组成的混合物的任意一种代替。
5.根据权利要求1所述的一种韧性耐老化路面防滑材料,其特征在于,所述聚甲醛塑料颗粒能够用尼龙颗粒、ABS塑料中的一种或混合颗粒代替;所述聚甲醛塑料颗粒粒径为1-3mm、洛氏硬度大于100R、断裂强度大于300kg/cm2。
6.一种韧性耐老化路面防滑材料的施工方法,其特征在于,包括如下步骤:
步骤1:用路面切割机对施工区域基础路面进行切割,槽深度为2-3mm,采用路面研磨机对切割区域进行打磨,打磨深度为2mm;除去灰尘,清洁切割区域;
步骤2:以3:1的比例将双酚A型环氧树脂、乙二胺加成改性脂肪胺充分搅匀形成界面粘结剂,用羊毛滚筒或毛刷在处理好的混凝土基面上涂刷,形成粘接底涂层,涂覆率为0.2-0.3kg/m2,保持涂刷均匀,施工温度保持高于5℃;20分钟后,进行下一道施工程序;
步骤3:将质量百分比为35%的端羧基丁腈橡胶改性环氧树脂、20%的改性聚醚胺和乙二胺加成改性脂肪胺3:1比例混合物、0.05%的2,4-二羟基二苯甲酮及阻胺类光稳定剂的2:1比例混合物、8%的橡胶颗粒、36.95%的石英粉,混合均匀,摊铺于上述粘接底涂层上,形成弹性耐磨层,厚度4-6mm,施工温度保持高于5℃,弹性耐磨层边角与路基接触部分用抹刀平滑衔接,施工完成30分钟后进行下一道施工;
步骤4:将27%的聚脲涂料与73%的聚甲醛塑料颗粒拌合均匀,均匀摊铺于弹性耐磨层上,厚度2-3mm,用抹刀轻度挤压,使塑料颗粒部分镶嵌于弹性耐磨层。
7.根据权利要求6所述的一种韧性耐老化路面防滑材料的施工方法,其特征在于,所述步骤3中弹性耐磨层的橡胶颗粒做表面处理,将橡胶颗粒置于5%稀盐酸搅拌清洗2h后烘干,加入到溶解有硅烷偶联剂的二氯甲烷溶液中搅拌10min后取出烘干。
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