CN107057613A - 一种具有自粘性发泡胶的汽车地毯材料制备方法 - Google Patents
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Abstract
本发明涉及一种具有自粘性发泡胶的汽车地毯材料制备方法,属于高分子材料技术领域。本发明以丙烯酸酯为主要原料,经过高分子共混改性后加入物理发泡剂和改性纳米纤维素制成具有自粘性的发泡地毯材料背胶,该胶涂覆在无纺纤维地毯或棉纺地毯材料上,经过烘干后即可获得具有自粘性的地毯制品。该地毯材料无低分子挥发物,环保,无毒,低密度,同时具有一定自粘性,可与汽车内部底面紧密贴合,使用过程中不会发生移位现象,使用方便。
Description
技术领域
本发明涉及一种具有自粘性发泡胶的汽车地毯材料制备方法,属于高分子材料技术领域。
背景技术
随着我国汽车工业的快速发展,汽车内饰件中地毯材料的用量也越来越大。目前汽车地毯材料主要有PVC材质地毯,PET针刺地毯,EVA复合地毯,PA簇绒地毯等。其中PVC材质地毯由于在高温下会有增塑剂等有毒有害物质挥发出来,不符合车内空气质量标准。目前市面所售地毯在使用过程会出现地毯移位,尤其驾驶员脚下地毯的移位,会产生汽车驾驶方面的安全隐患。目前汽车材料减重是一个重要发展方向,汽车地毯材料作为内饰材料中的一种,也有减重方面的性能需求,将发泡技术用于地毯材料减重是一项非常可行的技术。
然而,目前发泡技术如PVC、EVA的发泡剂还是以化学发泡剂为主,这些化学发泡剂在使用过程中由于分解不完全会产生残余。在汽车密闭空间内残余的发泡剂在高温条件下同样会挥发出来,对人体健康产生伤害。所以,有必要开发一种能新型地毯材料,这种材料对汽车底面具有一定的吸附能力,在使用过程中不易发生移位,而且方便打理,可反复用水冲洗该地毯,水分挥发干净后可继续使用;同时是一种发泡材料,有利于汽车的整体减重;所采用的发泡剂应为环保发泡剂,发泡之后不产生残余,不会对车内空气产生二次污染。
发明内容
本发明解决的技术问题是:目前车用地毯背胶无自粘性,所用发泡材料采用化学方式发泡,残余化学发泡剂会产生车内空气二次污染。
为了解决上述技术问题,本发明提出的技术方案是:一种具有自粘性发泡胶的汽车地毯材料制备方法,包括如下步骤:
(1)在所做制备的丙烯酸乳液中加入天然橡胶乳液,改性纳米纤维素水溶液,其中天然橡胶乳液所占混合溶液重量比为5%-15%,改性纳米纤维素水溶液所占混合溶液重量比为1%-5%,搅拌均匀,配成混合溶液;所述改性纳米纤维素为采用化学机械法生产的纳米纤维素微纤CNF水溶溶液,其直径小于100纳米,加入0.5%月桂酰谷氨酸将CNF改性处理;
(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;
(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,经过高温80℃-100℃烘干,即得到具有自粘性、物理法发泡背胶的地毯材料;
所述丙烯酸乳液的制备步骤如下:
(1)乳液剂的溶解,在反应釜中25℃下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;
(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;
(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
优选的,所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚优选的,钠含0.2%体系保护的离心法浓缩胶乳。
优选的,所述压缩机通入压缩空气即工业生产中常用压缩机。
优选的,所述无纺纤维地毯或棉纺地毯材料可市场购买,烘干工艺可在烘箱中完成,也可以在连续式输送带上完成,能将乳液中水分去除的烘干条件即可。
本发明的有益效果:本发明的地毯材料用于汽车脚垫等方面可有效防止脚垫的滑动移位,减少安全隐患,同时选用物理发泡方法,无化学发泡剂残留,不会对车内空气造成二次污染。
本发明以丙烯酸酯为主要原料,经过高分子共混改性后加入物理发泡剂制成具有自粘性的发泡地毯材料背胶,该胶涂覆在无纺纤维地毯或棉纺地毯材料上,经过烘干处理,即可获得具有自粘性的地毯制品。该地毯材料无低分子挥发物,环保,无毒,低密度,同时具有一定自粘性,可与汽车内部底面紧密贴合,使用过程中不会发生移位现象,使用方便。
具体实施方式
实施例1
先采用乳液法合成丙烯酸酯乳液:具体步骤为(1)乳液剂的溶解,在反应釜中常温下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚钠含0.2%体系保护的离心法浓缩胶乳。
选用化学机械法制备的纳米纤维素微纤水溶液,其直径小于100纳米,添加0.5%的月桂酰谷氨酸作为改性剂,通过机械搅拌均匀,即可获得改性的纳米纤维素溶液。所述无纺纤维地毯或棉纺地毯材料可市场购买,烘干工艺可在烘箱中完成,也可以在连续式输送带上完成,能将乳液中水分去除的烘干条件即可。
自粘性物理发泡地毯的制备:(1)在所做制备的丙烯酸乳液中加入15%的天然橡胶乳液,5%的改性纳米纤维素溶液,然后搅拌均匀,配成混合溶液;(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,在烘箱中经过高温100℃烘干,即得到具有高回弹性、高自粘性、物理法发泡制成背胶的地毯材料。
实施例2
先采用乳液法合成丙烯酸酯乳液:具体步骤为(1)乳液剂的溶解,在反应釜中常温下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚钠含0.2%体系保护的离心法浓缩胶乳。
选用化学机械法制备的纳米纤维素微纤水溶液,其直径小于100纳米,添加0.5%的月桂酰谷氨酸作为改性剂,通过机械搅拌均匀,即可获得改性的纳米纤维素溶液。
自粘性物理发泡地毯的制备:(1)在所做制备的丙烯酸乳液中加入5%的天然橡胶乳液,5%的改性纳米纤维素溶液,然后搅拌均匀,配成混合溶液;(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,在烘箱中经过高温100℃烘干,即得到具有高回弹性、中等自粘性、物理法发泡制成背胶的地毯材料。
实施例3
先采用乳液法合成丙烯酸酯乳液:具体步骤为(1)乳液剂的溶解,在反应釜中常温下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚钠含0.2%体系保护的离心法浓缩胶乳。
选用化学机械法制备的纳米纤维素微纤水溶液,其直径小于100纳米,添加0.5%的月桂酰谷氨酸作为改性剂,通过机械搅拌均匀,即可获得改性的纳米纤维素溶液。
自粘性物理发泡地毯的制备:(1)在所做制备的丙烯酸乳液中加入15%的天然橡胶乳液,3%的改性纳米纤维素溶液,然后搅拌均匀,配成混合溶液;(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,在烘箱中经过高温100℃烘干,即得到具有中回弹性、高自粘性、物理法发泡制成背胶的地毯材料。
实施例4
先采用乳液法合成丙烯酸酯乳液:具体步骤为(1)乳液剂的溶解,在反应釜中常温下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚钠含0.2%体系保护的离心法浓缩胶乳。
选用化学机械法制备的纳米纤维素微纤水溶液,其直径小于100纳米,添加0.5%的月桂酰谷氨酸作为改性剂,通过机械搅拌均匀,即可获得改性的纳米纤维素溶液。
自粘性物理发泡地毯的制备:(1)在所做制备的丙烯酸乳液中加入15%的天然橡胶乳液,1%的改性纳米纤维素溶液,然后搅拌均匀,配成混合溶液;(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,在烘箱中经过高温100℃烘干,即得到具有低回弹性、高自粘性、物理法发泡制成背胶的地毯材料。对比例
先采用乳液法合成丙烯酸酯乳液:具体步骤为(1)乳液剂的溶解,在反应釜中常温下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
在所做制备的丙烯酸乳液直接均匀涂覆在无纺纤维地毯或棉纺地毯材料上,在烘箱中经过高温100℃烘干,即得只含有丙烯酸酯背胶的地毯材料。
下表1为本发明制成的具有自粘性发泡胶的汽车地毯材料的性能表:
表1
本发明的不局限于上述实施例所述的具体技术方案,凡采用等同替换形成的技术方案均为本发明要求的保护范围。
Claims (4)
1.一种具有自粘性发泡胶的汽车地毯材料制备方法,其特征在于:包括如下步骤:
(1)在所做制备的丙烯酸乳液中加入天然橡胶乳液,改性纳米纤维素水溶液,其中天然橡胶乳液占混合溶液重量比为5%-15%,改性纳米纤维素水溶液占混合溶液重量比为1%-5%,搅拌均匀,配成混合溶液;所述改性纳米纤维素为采用化学机械法生产的纳米纤维素微纤CNF水溶溶液,其直径小于100纳米,加入0.5%月桂酰谷氨酸将CNF改性处理;
(2)在混合溶液中通过空气压缩机,缓慢通入压缩空气,并不断搅拌混合溶液,待混合溶液体积增加1倍时停止通气,停止搅拌,得到预发泡混合溶液;
(3)将预发泡混合溶液均匀涂覆在无纺纤维地毯或棉纺地毯材料上,经过高温80℃-100℃烘干,即得到具有自粘性、物理法发泡背胶的地毯材料;
所述丙烯酸乳液的制备步骤如下:
(1)乳液剂的溶解,在反应釜中25℃下,将壬基酚聚氧乙烯醚、十二烷基苯磺酸钠溶于去离子水中,不断搅拌配成乳化剂溶液;
(2)在乳化剂溶液中加入丙烯酸丁酯、甲基丙烯酸丁酯、甲基丙烯酸单体,快速搅拌均匀,随后开始降低搅拌速度,并逐渐升温到80℃,待溶液反应出现蓝光后,滴加过硫酸铵水溶液,过硫酸铵水溶液滴加完毕后,温度升至85℃,保温2小时后结束反应;
(3)将反应产物降温至30℃,加入氨水调节PH值至中性,即可出料获得丙烯酸乳液。
2.根据权利要求1所述的具有自粘性发泡胶的汽车地毯材料制备方法,其特征在于:所述天然橡胶乳液选用五氯酚钠低氨胶乳LA-SPP,即用氨和五氯酚钠含0.2%体系保护的离心法浓缩胶乳。
3.根据权利要求1所述的具有自粘性发泡胶的汽车地毯材料制备方法,其特征在于:所述压缩机通入压缩空气即工业生产中常用压缩机。
4.根据权利要求1所述的具有自粘性发泡胶的汽车地毯材料制备方法,其特征在于:所述无纺纤维地毯或棉纺地毯材料可市场购买,烘干工艺可在烘箱中完成,也可以在连续式输送带上完成,能将乳液中水分去除的烘干条件即可。
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