CN104441816A - 一种以sebs自粘胶为自粘层的高分子自粘胶膜卷材及其生产方法 - Google Patents
一种以sebs自粘胶为自粘层的高分子自粘胶膜卷材及其生产方法 Download PDFInfo
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Abstract
本发明公开了一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材及其生产方法,所述卷材包括以下组成:高分子层、SEBS自粘胶层、石英砂防粘层和聚乙烯膜搭接边隔离层,所述高分子自粘胶膜卷材的拉伸强度在800N/50mm以上,直角撕裂强度在80N/mm以上,卷材与卷材间的抗剪强度在550N/50mm以上,所述高分子层为聚烯烃类合成高分子防水卷材,所述SEBS自粘胶层是由以下重量份的原料制成:5~10份的SEBS弹性体、25~30份的橡胶、35份的增粘树脂、10份的软化剂、0.3~0.5份的抗氧剂1010和份的光稳定剂770。本发明产品具有施工简便、对施工环境要求低、减少施工时间、节约施工成本的优点,同时又具有抗张强度高、拉伸强度高、防水效果好的优点。
Description
技术领域
本发明涉及一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材及其生产方法,属于建筑防水材料领域。
背景技术
目前,对于大面积的建筑防水施工来说,防水卷材已成为首选材料。传统的沥青基防水卷材或改性沥青防水卷材通常采用热熔法施工,但这种施工方法易受环境因素影响,不能在潮湿或阴雨天气施工;同时,热熔法采用明火施工,存在安全隐患。现如今许多大城市已经禁止用明火施工,这对防水卷材的生产企业提出了更高的要求。此外,施工时,沥青基防水卷材与混凝土结构的粘结强度受基层质量好坏、施工环境和施工技术人员的技能操作等因素影响,不能保证每次施工都达到施工技术规范上的要求,工地经常出现卷材与基层粘结不牢、起鼓、窜水、渗漏等问题,并且增加了施工成本;另外普通卷材施工所需工序多,施工时间长。
发明内容
本发明的目的是提供一种施工简便、对施工环境要求低、减少施工时间、节约施工成本的以SEBS自粘胶为自粘层的高分子自粘胶膜卷材。
本发明的另一目的是提供一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,本发明方法生产的产品具有抗张强度高、拉伸强度高、防水效果好的优点。
为解决以上技术问题,本发明采用以下技术方案:
一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,所述卷材包括以下组成:高分子层、SEBS自粘胶层、石英砂防粘层和聚乙烯膜搭接边隔离层。
以下是对上述技术方案的进一步优化:
所述高分子自粘胶膜卷材的拉伸强度在800N/50mm以上,直角撕裂强度在80N/mm以上,卷材与卷材间的抗剪强度在550N/50mm以上。
所述高分子层为聚烯烃类合成高分子防水卷材。
所述SEBS自粘胶层是由以下重量份的原料制成:5~10份的SEBS弹性体、25~30份的橡胶、35份的增粘树脂、10份的软化剂、0.3~0.5份的抗氧剂1010和份的光稳定剂770。
所述橡胶为丁基橡胶,增粘树脂为萜烯树脂,软化剂为橡胶用环烷油。
所述以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法, 包括以下步骤: SEBS自粘胶的制备、高分子层的制备、SEBS自粘胶层的制备、石英砂防粘层的制备和聚乙烯膜搭接边隔离层的制备。
所述SEBS自粘胶的制备方法为:
将5~10重量份的SEBS弹性体、25~30重量份的丁基(IIR)橡胶、35重量份的萜烯树脂和10重量份的橡胶用环烷油在190~200℃下搅拌2小时,待溶胀、搅拌均匀后,加入0.3~0.5重量份的抗氧剂1010和0.3~0.5重量份的光稳定剂770的混合物,搅拌均匀,得到均匀稳定的粘稠状SEBS自粘胶液体,降温至165~170℃待用。
所述高分子层的制备方法为:
通过挤出机和压延机处理聚烯烃类合成高分子防水卷材处理聚烯烃类合成高分子防水卷材生产匀质高分子卷材,作为高分子层。
所述SEBS自粘胶层的制备方法为:
通过自动涂胶机将SEBS自粘胶均匀涂覆在高分子卷材表面,且自粘胶层厚度在0.25~0.30mm。
所述石英砂防粘层的制备方法为:
将石英砂均匀涂覆在自粘胶层表面,纵向单边留出80~100mm搭接边,搭接边处不覆砂。
所述聚乙烯膜搭接边隔离层的制备方法为:
用聚乙烯隔离膜将搭接边处的自粘胶覆盖,隔离膜宽度为80mm,制得本发明卷材。
本发明产品具有以下优点:
1.该产品可与后浇混凝土形成永久性有机结合,阻止水分在防水卷材与结构混凝土之间窜流;
2.该产品抗张强度高,拉伸强度在800N/50mm以上,直角撕裂强度在80N/mm以上,卷材与卷材间的抗剪强度在550N/50mm以上,表层采用特殊防粘处理,采用预铺反粘施工时,施工人员可长期在其表面站立行走,绑扎钢筋;
3.施工方便,基层经过简单处理后,可直接空铺卷材、绑扎钢筋、浇筑混凝土,与普通防水卷材相比,可缩短三分之一的施工工期;
4.自粘胶层采用对环境友好型的高分子自粘胶,符合环保要求;
5.本发明卷材对施工环境要求低,阴雨天或潮湿环境对施工质量无影响,大大缩短了施工工期和养护期,节约了费用;
6.本发明卷材对基层要求低,与混凝土结构粘结牢固可靠,具有自修复功能;一方面提高了混凝土结构的自防水功能;另一方面,高分子层可有效的防止外部地下水等的透过,防水效果显著。
下面结合附图和具体实施方式对本发明作进一步说明。
附图说明
附图1是本发明实施例中以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的结构示意图。
具体实施方式
实施例1、
1. SEBS自粘胶的制备
将5kg的SEBS弹性体、25kg的丁基(IIR)橡胶、35kg的萜烯树脂和10kg的橡胶用环烷油在190~200℃下搅拌2小时,待溶胀、搅拌均匀后,加入0.3kg的抗氧剂1010和0.3kg的光稳定剂770的混合物,搅拌均匀,得到均匀稳定的粘稠状SEBS自粘胶液体,降温至165~170℃待用。
2.高分子层的制备
通过挤出机和压延机处理聚烯烃类合成高分子防水卷材生产匀质高分子卷材。
3.SEBS自粘胶层的制备
通过自动涂胶机将SEBS自粘胶均匀涂覆在高分子卷材表面,且自粘胶层厚度在0.25mm。
4.石英砂防粘层的制备
将石英砂均匀涂覆在自粘胶层表面,纵向单边留出80mm搭接边,搭接边处不覆砂。
5.聚乙烯膜搭接边隔离层的制备
用聚乙烯隔离膜将搭接边处的自粘胶覆盖,隔离膜宽度为80mm,制得本发明卷材。
实施例2、
1. SEBS自粘胶的制备
将7kg的SEBS弹性体、27kg的丁基(IIR)橡胶、35kg的萜烯树脂和10kg的橡胶用环烷油在190~200℃下搅拌2小时,待溶胀、搅拌均匀后,加入0.4kg的抗氧剂1010和0.4kg的光稳定剂770的混合物,搅拌均匀,得到均匀稳定的粘稠状SEBS自粘胶液体,降温至165~170℃待用。
2.高分子层的制备
通过挤出机和压延机处理聚烯烃类合成高分子防水卷材生产匀质高分子卷材。
3.SEBS自粘胶层的制备
通过自动涂胶机将SEBS自粘胶均匀涂覆在高分子卷材表面,且自粘胶层厚度在0.27mm。
4.石英砂防粘层的制备
将石英砂均匀涂覆在自粘胶层表面,纵向单边留出90mm搭接边,搭接边处不覆砂。
5.聚乙烯膜搭接边隔离层的制备
用聚乙烯隔离膜将搭接边处的自粘胶覆盖,隔离膜宽度为80mm,制得本发明卷材。
实施例3、
1. SEBS自粘胶的制备
将10kg的SEBS弹性体、30kg的丁基(IIR)橡胶、35kg的萜烯树脂和10kg的橡胶用环烷油在190~200℃下搅拌2小时,待溶胀、搅拌均匀后,加入0.3kg的重量比为1:1.2的抗氧剂1010和光稳定剂770的混合物,搅拌均匀,得到均匀稳定的粘稠状SEBS自粘胶液体,降温至165~170℃待用。
2.高分子层的制备
通过挤出机和压延机处理聚烯烃类合成高分子防水卷材生产匀质高分子卷材。
3.SEBS自粘胶层的制备
通过自动涂胶机将SEBS自粘胶均匀涂覆在高分子卷材表面,且自粘胶层厚度为0.30mm。
4.石英砂防粘层的制备
将石英砂均匀涂覆在自粘胶层表面,纵向单边留出100mm搭接边,搭接边处不覆砂。
5.聚乙烯膜搭接边隔离层的制备
用聚乙烯隔离膜将搭接边处的自粘胶覆盖,隔离膜宽度为80mm,制得本发明卷材。
取上述三个实施例所制得的产品进行试验,得出以下数据,见下表:
由上表可知,本发明产品各项性能指标均高于国家指标,尤其是拉伸强度在800N/50mm以上,直角撕裂强度在80N/mm以上,卷材与卷材间的抗剪强度在550N/50mm以上。
本发明卷材施工工序主要包括基层处理、铺设卷材、铺设钢筋、浇筑混凝土四道主要工序;与普通防水卷材施工相比,减少了涂刷底油、铺设保护层等工序,施工简便,大大缩短了施工时间,节约了施工成本。
本发明卷材与结构混凝土满粘,彻底消除了窜水通道,防水效果好。
以上所述为本发明最佳实施方式的举例,其中未详细述及的部分均为本领域普通技术人员的公知常识。本发明的保护范围以权利要求的内容为准,任何基于本发明的技术启示而进行的等效变换,也在本发明的保护范围之内。
Claims (10)
1. 一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,其特征在于: 所述卷材包括以下组成:高分子层、SEBS自粘胶层、石英砂防粘层和聚乙烯膜搭接边隔离层。
2. 如权利要求1所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,其特征在于:所述高分子自粘胶膜卷材的拉伸强度在800N/50mm以上,直角撕裂强度在80N/mm以上,卷材与卷材间的抗剪强度在550N/50mm以上。
3. 如权利要求1所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,其特征在于:所述高分子层为聚烯烃类合成高分子防水卷材。
4. 如权利要求1所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,其特征在于:所述SEBS自粘胶层是由以下重量份的原料制成:5~10份的SEBS弹性体、25~30份的橡胶、35份的增粘树脂、10份的软化剂、0.3~0.5份的抗氧剂1010和份的光稳定剂770。
5. 如权利要求4所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材,其特征在于: 所述橡胶为丁基橡胶,增粘树脂为萜烯树脂,软化剂为橡胶用环烷油。
6. 如权利要求1-5之一所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,其特征在于:所述生产方法包括以下步骤: SEBS自粘胶的制备、高分子层的制备、SEBS自粘胶层的制备、石英砂防粘层的制备和聚乙烯膜搭接边隔离层的制备。
7. 如权利要求6所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,其特征在于:所述SEBS自粘胶的制备方法为:
将5~10重量份的SEBS弹性体、25~30重量份的丁基(IIR)橡胶、35重量份的萜烯树脂和10重量份的橡胶用环烷油在190~200℃下搅拌2小时,待溶胀、搅拌均匀后,加入0.3~0.5重量份的抗氧剂1010和0.3~0.5重量份的光稳定剂770的混合物,搅拌均匀,得到均匀稳定的粘稠状SEBS自粘胶液体,降温至165~170℃待用。
8. 如权利要求6所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,其特征在于:所述高分子层的制备方法为:
通过挤出机和压延机处理聚烯烃类合成高分子防水卷材处理聚烯烃类合成高分子防水卷材生产匀质高分子卷材,作为高分子层。
9. 如权利要求6所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,其特征在于:所述SEBS自粘胶层的制备方法为:
通过自动涂胶机将SEBS自粘胶均匀涂覆在高分子卷材表面,且自粘胶层厚度在0.25~0.30mm。
10. 如权利要求1-5之一所述的一种以SEBS自粘胶为自粘层的高分子自粘胶膜卷材的生产方法,其特征在于:所述石英砂防粘层的制备方法为:
将石英砂均匀涂覆在自粘胶层表面,纵向单边留出80~100mm搭接边,搭接边处不覆砂;
所述聚乙烯膜搭接边隔离层的制备方法为:
用聚乙烯隔离膜将搭接边处的自粘胶覆盖,隔离膜宽度为80mm,制得本发明卷材。
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