CN109016735A - Sbs改性沥青防水卷材 - Google Patents
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Abstract
本发明涉及一种SBS改性沥青防水卷材,以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维50‑60份、超细玻璃纤维30‑40份、丝瓜络纤维3‑5份、聚酯纤维10‑15份。通过采用玻纤丝瓜络聚酯毡为增强体,本发明的SBS改性沥青防水卷材本具有高的扯断伸长率,同时具有良好稳定性、抗老化性、防水性、耐化学性、耐候性和较好的机械强度、较小的线膨胀系数等。
Description
技术领域
本发明涉及一种SBS改性沥青防水卷材,属于防水材料领域。
背景技术
SBS改性沥青防水卷材是指以聚酯毡或玻纤毡为胎基,以苯乙烯-丁二烯-苯乙烯(SBS)共聚热塑性弹性体改性沥青为涂盖料,两面覆以聚乙烯膜、细砂或矿物粒料而制成的改性沥青防水卷材。产品特点:⑴具有优良的耐高低温性能;⑵可形成高强度防水层,耐穿刺、耐割伤、耐撕裂、耐疲劳;⑶具有优良的延伸性和较强的抗基层变形能力;⑷低温性能优异。胎体材料是聚合物沥青防水卷材的骨架,它使卷材具有—定形状、强度和韧性,从而保证了卷材在施工过程中的铺设性和防水层的抗裂性,起到工程防水的作用。胎体材料的优劣直接影响到聚合物沥青防水卷材的防水效果。聚合物沥青防水卷材所用的胎体材料(或称胎基)主要有玻纤毡、聚酯毡、玻纤增强聚酯毡、聚酯毡与玻纤网格布复合毡等。玻纤毡具有孔隙大、浸渍快、不燃、耐微生物腐蚀、耐化学介质侵蚀、耐热及绝缘性能好,与沥青有良好的兼容性、尺寸稳定好,不仅很容易被沥青浸透,而且具有防水性能好及价格低等优点,可用来生产聚合物沥青防水卷材和聚合物沥青油毡瓦。玻纤毡是开放式网状结构,空隙率高,对聚合物沥青吸附性和浸透性能好,在生产中简化了浸渍工序。玻纤毡的缺点是较低的机械强度、抗疲劳强度和抗冲击强度,仅能适应较低冲击的场合。聚酯胎为无纺织物,由聚酯短纤维或聚酯连续纤维制成,是一种比较坚韧的合成纤维胎体,具有良好的耐热性、延伸性和抗冲击性,具有较高的抗拉强度和撕裂强度,耐酸、耐碱、耐微生物浸蚀,亲油性较好,能充分地被聚合物沥青所浸润,产生较强的吸附和胶粘力,形成良好的致密性,而且不存在经纬结构,在乎面上各向同性,可消除生产过程中造成的纵向应力,后期收缩性小,是缺点是尺寸稳定性差。聚酯玻纤复合胎体是由玻纤毡和聚酯胎两种胎体组合起来表现出各自性能的胎体,尺寸稳定性提高。但是复合胎体制得的聚合物沥青防水卷材的弹性明显小于聚酯胎聚合物沥青防水卷材,且与沥青的融合性能也不是很好。
发明内容
本发明涉及一种SBS改性沥青防水卷材,解决了现有以聚酯玻纤复合胎体为主的防水卷材弹性小、且与沥青的融合性能不好等问题。
为解决上述技术问题,本发明采用的技术方案为:
一种SBS改性沥青防水卷材,以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维50-60份、超细玻璃纤维30-40份、丝瓜络纤维3-5份、聚酯纤维10-15份。
进一步,本发明的一种优选方案为:所述的高硅氧玻璃纤维的纤维长度为2~4mm、直径为11~14μm;所述的超细玻璃纤维的纤维长度为2~4mm、直径为1~3μm;所述的聚酯纤维的直径为6-8μm,纤维长度为4-6mm。
进一步,本发明的一种优选方案为:所述的丝瓜络纤维的长度为2-4mm,其制备方法为:将干丝瓜络在浓度为2%的NaOH以及100℃条件下煮沸100min,待溶液温度降至70~80℃之后,加入浓度为5的H2O2,继续加热0.5h,保持温度为70~80℃,之后过滤,用蒸馏水充分洗涤滤渣至中性,干燥后,切成2-4mm的长度,即得丝瓜络纤维。
进一步,本发明的一种优选方案为:所述的玻纤丝瓜络聚酯毡的制备方法为先将玻璃纤维、丝瓜络纤维和聚酯纤维均匀分散到分散液中形成浆料,将浆料进行上浆成形,接着用粘结剂进行浸胶,最后烘干、收卷切边制成。
进一步,本发明的一种优选方案为:所述的分散液按照重量百分比,由5%羟丙基甲基纤维素、1%膨润土、3%阳离子表面活性剂1631、2%玻璃纤维用KLD-101S消泡剂和89%水组成。
进一步,本发明的一种优选方案为:所述的粘结剂按照重量百分比,由10%阳离子丙烯酸乳液、70%脲醛树脂和20%的水组成。
本发明的有益效果:
本发明通过采用玻纤丝瓜络聚酯毡为增强体,玻纤丝瓜络聚酯毡采用玻璃纤维、丝瓜络纤维和聚酯纤维为主制备所得,丝瓜络纤维具有独特的多孔性物理结构和亲水亲油的两性化学结构及优良的机械强度和弹性。增加丝瓜络纤维可以有效的在玻璃纤维和聚酯纤维之间起到桥连作用,使得玻璃纤维和聚酯纤维结合更好,并且使得制备的胎体整体上与沥青的亲和度更好,与沥青具有更好地结合,而且丝瓜络纤维具有良好的机械性能,可以使所得的胎体的弹性好。
通过采用玻纤丝瓜络聚酯毡为增强体,本发明的SBS改性沥青防水卷材本具有高的扯断伸长率,同时具有良好稳定性、抗老化性、防水性、耐化学性、耐候性和较好的机械强度、较小的线膨胀系数等。
具体实施方式
下面将结合本发明实施例,对本发明的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
以下实施例中所用的SBS改性沥青采用上海万照精细化工有限公司的产品,矿物颗粒采用磨细膨胀珍珠岩粉。
增强体厚度为1.5mm、矿物颗粒层1.6mm、聚乙烯膜1mm、改性沥青胶料层0.8mm。
实施例1
一种SBS改性沥青防水卷材,以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维50份、超细玻璃纤维40份、丝瓜络纤维3份、聚酯纤维13份。
高硅氧玻璃纤维的纤维长度为2~4mm、直径为11~14μm;所述的超细玻璃纤维的纤维长度为2~4mm、直径为1~3μm;所述的聚酯纤维的直径为6-8μm,纤维长度为4-6mm。
丝瓜络纤维的长度为2-4mm,其制备方法为:将干丝瓜络在浓度为2%的NaOH以及100℃条件下煮沸100min,待溶液温度降至70~80℃之后,加入浓度为5%的H2O2,继续加热0.5h,保持温度为70~80℃,之后过滤,用蒸馏水充分洗涤滤渣至中性,干燥后,切成2-4mm的长度,即得丝瓜络纤维。
玻纤丝瓜络聚酯毡的制备方法为先将玻璃纤维、丝瓜络纤维和聚酯纤维均匀分散到分散液中形成浆料,将浆料进行上浆成形,接着用粘结剂进行浸胶,最后烘干、收卷切边制成;所述的分散液按照重量百分比,由5%羟丙基甲基纤维素、1%膨润土、3%阳离子表面活性剂1631、2%玻璃纤维用KLD-101S消泡剂和89%水组成;所述的粘结剂按照重量百分比,由10%阳离子丙烯酸乳液、70%脲醛树脂和20%的水组成。
SBS改性沥青防水卷材的制备方法:将SBS改性沥青泵入生产线前端浸槽,将胎基层在生产线上展开并导入浸槽,浸渍SBS改性沥青,并用厚度控制辊进行厚度控制,分别在胎基层的上表面形成上聚合物改性沥青层,在上聚合物改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;经冷却设备冷却后、计长、切边、收卷、包装得到成品。
实施例2
一种SBS改性沥青防水卷材,以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维55份、超细玻璃纤维35份、丝瓜络纤维4份、聚酯纤维10份。
高硅氧玻璃纤维的纤维长度为2~4mm、直径为11~14μm;所述的超细玻璃纤维的纤维长度为2~4mm、直径为1~3μm;所述的聚酯纤维的直径为6-8μm,纤维长度为4-6mm。
丝瓜络纤维的长度为2-4mm,其制备方法为:将干丝瓜络在浓度为2%的NaOH以及100℃条件下煮沸100min,待溶液温度降至70~80℃之后,加入浓度为5的H2O2,继续加热0.5h,保持温度为70~80℃,之后过滤,用蒸馏水充分洗涤滤渣至中性,干燥后,切成2-4mm的长度,即得丝瓜络纤维。
玻纤丝瓜络聚酯毡的制备方法为先将玻璃纤维、丝瓜络纤维和聚酯纤维均匀分散到分散液中形成浆料,将浆料进行上浆成形,接着用粘结剂进行浸胶,最后烘干、收卷切边制成;所述的分散液按照重量百分比,由5%羟丙基甲基纤维素、1%膨润土、3%阳离子表面活性剂1631、2%玻璃纤维用KLD-101S消泡剂和89%水组成;所述的粘结剂按照重量百分比,由10%阳离子丙烯酸乳液、70%脲醛树脂和20%的水组成。
SBS改性沥青防水卷材的制备方法:将SBS改性沥青泵入生产线前端浸槽,将胎基层在生产线上展开并导入浸槽,浸渍SBS改性沥青,并用厚度控制辊进行厚度控制,分别在胎基层的上表面形成上聚合物改性沥青层,在上聚合物改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;经冷却设备冷却后、计长、切边、收卷、包装得到成品。
实施例3
一种SBS改性沥青防水卷材,以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维60份、超细玻璃纤维30份、丝瓜络纤维5份、聚酯纤维15份。
高硅氧玻璃纤维的纤维长度为2~4mm、直径为11~14μm;所述的超细玻璃纤维的纤维长度为2~4mm、直径为1~3μm;所述的聚酯纤维的直径为6-8μm,纤维长度为4-6mm。
丝瓜络纤维的长度为2-4mm,其制备方法为:将干丝瓜络在浓度为2%的NaOH以及100℃条件下煮沸100min,待溶液温度降至70~80℃之后,加入浓度为5的H2O2,继续加热0.5h,保持温度为70~80℃,之后过滤,用蒸馏水充分洗涤滤渣至中性,干燥后,切成2-4mm的长度,即得丝瓜络纤维。
玻纤丝瓜络聚酯毡的制备方法为先将玻璃纤维、丝瓜络纤维和聚酯纤维均匀分散到分散液中形成浆料,将浆料进行上浆成形,接着用粘结剂进行浸胶,最后烘干、收卷切边制成;所述的分散液按照重量百分比,由5%羟丙基甲基纤维素、1%膨润土、3%阳离子表面活性剂1631、2%玻璃纤维用KLD-101S消泡剂和89%水组成;所述的粘结剂按照重量百分比,由10%阳离子丙烯酸乳液、70%脲醛树脂和20%的水组成。
SBS改性沥青防水卷材的制备方法:将SBS改性沥青泵入生产线前端浸槽,将胎基层在生产线上展开并导入浸槽,浸渍SBS改性沥青,并用厚度控制辊进行厚度控制,分别在胎基层的上表面形成上聚合物改性沥青层,在上聚合物改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;经冷却设备冷却后、计长、切边、收卷、包装得到成品。
对比例1
与实施例1基本相同,不同点在于:以玻纤增强聚酯毡为增强体;所述的玻纤增强聚酯毡,按照重量份计,包括高硅氧玻璃纤维52份、超细玻璃纤维37份、聚酯纤维10份。
按照,《GB18242-2008弹性体改性沥青防水卷材》测定产品的性能,具体见下表。
由上表可知,本发明的SBS改性沥青防水卷材性能优良,可以广泛的应用于房屋、路面等防水领域。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (6)
1.一种SBS改性沥青防水卷材,其特征在于:以玻纤丝瓜络聚酯毡为增强体,所述增强体上面涂覆SBS改性沥青层,所述SBS改性沥青层上表面覆矿物颗粒层,所述增强体下面涂覆聚乙烯膜;所述的玻纤丝瓜络聚酯毡,按照重量份计,包括高硅氧玻璃纤维50-60份、超细玻璃纤维30-40份、丝瓜络纤维3-5份、聚酯纤维10-15份。
2.根据权利要求1所述的一种SBS改性沥青防水卷材,其特征在于:所述的高硅氧玻璃纤维的纤维长度为2~4mm、直径为11~14μm;所述的超细玻璃纤维的纤维长度为2~4mm、直径为1~3μm;所述的聚酯纤维的直径为6-8μm,纤维长度为4-6mm。
3.根据权利要求1所述的一种SBS改性沥青防水卷材,其特征在于:所述的丝瓜络纤维的长度为2-4mm,其制备方法为:将干丝瓜络在浓度为2%的NaOH以及100℃条件下煮沸100min,待溶液温度降至70~80 ℃之后,加入浓度为5的H2O2,继续加热0.5h,保持温度为70~80℃,之后过滤,用蒸馏水充分洗涤滤渣至中性,干燥后,切成2-4mm的长度,即得丝瓜络纤维。
4.根据权利要求1所述的一种SBS改性沥青防水卷材,其特征在于:所述的玻纤丝瓜络聚酯毡的制备方法为先将玻璃纤维、丝瓜络纤维和聚酯纤维均匀分散到分散液中形成浆料,将浆料进行上浆成形,接着用粘结剂进行浸胶,最后烘干、收卷切边制成。
5.根据权利要求4所述的一种SBS改性沥青防水卷材,其特征在于:所述的分散液按照重量百分比,由5%羟丙基甲基纤维素、1%膨润土、3%阳离子表面活性剂1631、2%玻璃纤维用KLD-101S消泡剂和89%水组成。
6.根据权利要求4所述的一种SBS改性沥青防水卷材,其特征在于:所述的粘结剂按照重量百分比,由10%阳离子丙烯酸乳液、70%脲醛树脂和20%的水组成。
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