CN111073281A - 一种胶化聚苯胺导电薄膜及其制备方法 - Google Patents
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Abstract
本发明公开了一种胶化聚苯胺导电薄膜,它是由下述重量份的原料组成的:过硫酸钠2‑3、二烷基对二苯酚0.7‑1、甲基丙烯酸4‑6、橡胶粉3‑5、对甲基苯磺酸0.1‑0.2、环氧丙醇5‑7、苯胺90‑100、二乙烯三胺2‑4、氧化石墨烯6‑9,本发明采用二乙烯三胺处理氧化石墨烯,再与胶粉改性聚苯胺溶液共混,高温下促进环氧交联,从而实现胶粉、石墨烯在聚苯胺间的分散性能,提高各原料间的相容性,进而提高成品薄膜的力学和导电性能。
Description
技术领域
本发明属于薄膜领域,具体涉及一种胶化聚苯胺导电薄膜及其制备方法。
背景技术
聚苯胺作为导电高分子材料之一,因其化学稳定性好、耐候性佳、原料廉价易得、合成方法简单以及导电性能等,被认为是最具有商业应用价值的结构性导电高分子,在生物传感器、防腐材料、吸波材料等领域有巨大市场需求,但聚苯胺电导率不高以及后期加工处理、稳定性差的问题使其在推广应用上受到较大影响;
目前,随着聚苯胺薄膜的应用越来越广,其使用安全性是目前关注的要点,然而为了更进一步的提高聚苯胺的防火性能,往往在其中引入阻燃无机填料,这样虽然可以在一定程度提高耐火性能,然而由于无机粒子与聚苯胺的相容性差,也会造成成品的稳定性差。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种胶化聚苯胺导电薄膜及其制备方法。
为实现上述目的,本发明采用以下技术方案:
一种胶化聚苯胺导电薄膜,它是由下述重量份的原料组成的:
过硫酸钠2-3、二烷基对二苯酚0.7-1、甲基丙烯酸4-6、橡胶粉3-5、对甲基苯磺酸0.1-0.2、环氧丙醇5-7、苯胺90-100、二乙烯三胺2-4、氧化石墨烯6-9。
一种胶化聚苯胺导电薄膜的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到20-30倍的去离子水中,搅拌均匀;
(2)取二烷基对二苯酚,加入到其重量4-5倍的甲醇中,搅拌均匀,醇分散液;
(3)取甲基丙烯酸、橡胶粉混合,在65-70℃下保温搅拌20-30分钟,得预混胶粉;
(4)取上述预混胶粉,加入到醇分散液中,搅拌均匀,升高温度为90-95℃,加入对甲基苯磺酸,保温搅拌1-2小时,搅拌至常温,得胶粉酯溶液;
(5)取环氧丙醇,加入到上述胶粉酯溶液中,搅拌均匀,送入到不锈钢反应釜中,通入氮气,调节反应釜温度90-100℃,搅拌反应1-2小时,加入甲醇钠,调节反应釜温度为150-160℃,保温搅拌2-3小时,出料,得改性溶液;
(6)取苯胺,加入到上述改性溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为70-75℃,加入过硫酸钠水溶液,搅拌反应4-5小时,出料,得胶粉改性聚苯胺溶液;
(7)取二乙烯三胺、氧化石墨烯混合,加入到混合料重量20-30倍的去离子水中,超声10-20分钟,得石墨烯分散液;
(8)取上述胶粉改性聚苯胺溶液、石墨烯分散液混合,搅拌均匀,涂覆在聚四氟乙烯基底表面上,真空干燥,出料冷却,即得所述胶化聚苯胺导电薄膜。
所述真空干燥的温度为60-70℃,时间为110-130分钟。
本发明的优点:
本发明首先通过甲基丙烯酸与甲醇混合,以橡胶粉为掺杂剂,在对甲基苯磺酸作用下酯化,之后与环氧丙醇共混,以甲醇钠为催化剂进行酯交换反应,得到改性溶液,之后以苯胺为单体,以改性溶液为溶剂,在引发剂作用下聚合,得到胶粉改性聚苯胺溶液,之后采用二乙烯三胺处理氧化石墨烯,再与胶粉改性聚苯胺溶液共混,高温下促进环氧交联,从而实现胶粉、石墨烯在聚苯胺间的分散性能,提高各原料间的相容性,进而提高成品薄膜的力学和导电性能。
具体实施方
实施例1
一种胶化聚苯胺导电薄膜,它是由下述重量份的原料组成的:
过硫酸钠3、二烷基对二苯酚1、甲基丙烯酸6、橡胶粉5、对甲基苯磺酸0.2、环氧丙醇7、苯胺100、二乙烯三胺4、氧化石墨烯9。
一种胶化聚苯胺导电薄膜的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到30倍的去离子水中,搅拌均匀;
(2)取二烷基对二苯酚,加入到其重量5倍的甲醇中,搅拌均匀,醇分散液;
(3)取甲基丙烯酸、橡胶粉混合,在70℃下保温搅拌30分钟,得预混胶粉;
(4)取上述预混胶粉,加入到醇分散液中,搅拌均匀,升高温度为90-95℃,加入对甲基苯磺酸,保温搅拌2小时,搅拌至常温,得胶粉酯溶液;
(5)取环氧丙醇,加入到上述胶粉酯溶液中,搅拌均匀,送入到不锈钢反应釜中,通入氮气,调节反应釜温度100℃,搅拌反应2小时,加入甲醇钠,调节反应釜温度为160℃,保温搅拌3小时,出料,得改性溶液;
(6)取苯胺,加入到上述改性溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为75℃,加入过硫酸钠水溶液,搅拌反应5小时,出料,得胶粉改性聚苯胺溶液;
(7)取二乙烯三胺、氧化石墨烯混合,加入到混合料重量30倍的去离子水中,超声20分钟,得石墨烯分散液;
(8)取上述胶粉改性聚苯胺溶液、石墨烯分散液混合,搅拌均匀,涂覆在聚四氟乙烯基底表面上,真空干燥,出料冷却,即得所述胶化聚苯胺导电薄膜。
实施例2
一种胶化聚苯胺导电薄膜,它是由下述重量份的原料组成的:
过硫酸钠2、二烷基对二苯酚0.7、甲基丙烯酸4、橡胶粉3、对甲基苯磺酸0.1、环氧丙醇5-7、苯胺90、二乙烯三胺2、氧化石墨烯6。
一种胶化聚苯胺导电薄膜的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到20倍的去离子水中,搅拌均匀;
(2)取二烷基对二苯酚,加入到其重量4倍的甲醇中,搅拌均匀,醇分散液;
(3)取甲基丙烯酸、橡胶粉混合,在65℃下保温搅拌20分钟,得预混胶粉;
(4)取上述预混胶粉,加入到醇分散液中,搅拌均匀,升高温度为90℃,加入对甲基苯磺酸,保温搅拌1-2小时,搅拌至常温,得胶粉酯溶液;
(5)取环氧丙醇,加入到上述胶粉酯溶液中,搅拌均匀,送入到不锈钢反应釜中,通入氮气,调节反应釜温度90℃,搅拌反应1小时,加入甲醇钠,调节反应釜温度为150℃,保温搅拌2小时,出料,得改性溶液;
(6)取苯胺,加入到上述改性溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为70℃,加入过硫酸钠水溶液,搅拌反应4小时,出料,得胶粉改性聚苯胺溶液;
(7)取二乙烯三胺、氧化石墨烯混合,加入到混合料重量20倍的去离子水中,超声10分钟,得石墨烯分散液;
(8)取上述胶粉改性聚苯胺溶液、石墨烯分散液混合,搅拌均匀,涂覆在聚四氟乙烯基底表面上,真空干燥,出料冷却,即得所述胶化聚苯胺导电薄膜。
性能测试:
实施例1的胶化聚苯胺导电薄膜:厚度2.0mm;拉伸强度15.5Mpa;电导率采用四探针法进行测试,结果为0.96S/cm;
实施例2的胶化聚苯胺导电薄膜:厚度2.1mm;拉伸强度15.9Mpa;电导率采用四探针法进行测试,结果为0.98S/cm。
Claims (3)
1.一种胶化聚苯胺导电薄膜,其特征在于,它是由下述重量份的原料组成的:
过硫酸钠2-3、二烷基对二苯酚0.7-1、甲基丙烯酸4-6、橡胶粉3-5、对甲基苯磺酸0.1-0.2、环氧丙醇5-7、苯胺90-100、二乙烯三胺2-4、氧化石墨烯6-9。
2.一种如权利要求1所述的胶化聚苯胺导电薄膜的制备方法,其特征在于,包括以下步骤:
(1)取过硫酸钠,加入到20-30倍的去离子水中,搅拌均匀;
(2)取二烷基对二苯酚,加入到其重量4-5倍的甲醇中,搅拌均匀,醇分散液;
(3)取甲基丙烯酸、橡胶粉混合,在65-70℃下保温搅拌20-30分钟,得预混胶粉;
(4)取上述预混胶粉,加入到醇分散液中,搅拌均匀,升高温度为90-95℃,加入对甲基苯磺酸,保温搅拌1-2小时,搅拌至常温,得胶粉酯溶液;
(5)取环氧丙醇,加入到上述胶粉酯溶液中,搅拌均匀,送入到不锈钢反应釜中,通入氮气,调节反应釜温度90-100℃,搅拌反应1-2小时,加入甲醇钠,调节反应釜温度为150-160℃,保温搅拌2-3小时,出料,得改性溶液;
(6)取苯胺,加入到上述改性溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为70-75℃,加入过硫酸钠水溶液,搅拌反应4-5小时,出料,得胶粉改性聚苯胺溶液;
(7)取二乙烯三胺、氧化石墨烯混合,加入到混合料重量20-30倍的去离子水中,超声10-20分钟,得石墨烯分散液;
(8)取上述胶粉改性聚苯胺溶液、石墨烯分散液混合,搅拌均匀,涂覆在聚四氟乙烯基底表面上,真空干燥,出料冷却,即得所述胶化聚苯胺导电薄膜。
3.根据权利要求2所述的一种胶化聚苯胺导电薄膜的制备方法,其特征在于,所述真空干燥的温度为60-70℃,时间为110-130分钟。
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