CN108517094A - 一种耐热双酚a改性聚四氟乙烯膜及其制备方法 - Google Patents
一种耐热双酚a改性聚四氟乙烯膜及其制备方法 Download PDFInfo
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Abstract
本发明公开了一种耐热双酚A改性聚四氟乙烯膜,它是由下述重量份的原料组成的:双酚A6‑10、磷酸三乙酯13‑20、油酸三乙醇胺1‑2、聚四氟乙烯80‑90、叔丁基对二苯酚0.3‑1、环烷酸锂0.1‑0.2、水和硼酸锌2‑4、三羟甲基丙烷3‑5、硅藻土16‑20、甲醇锂0.01‑0.03,本发明以油酸三乙醇胺水溶液为分散剂,实现双酚A酯与硅藻土的有效相容,从而提高成品薄膜的力学稳定性强度和耐热稳定性。
Description
技术领域
本发明属于膜领域,具体涉及一种耐热双酚A改性聚四氟乙烯膜及其制备方法。
背景技术
塑料薄膜是现在人们常见的生活用品,塑料薄膜具有透明性好、阻湿性好、耐热性优良、使用方便、价格便宜等优点被广泛应用于各行各业,目前市场上的塑料薄膜主要以聚乙烯、聚四氟乙烯、聚碳酸酯等塑料薄膜为主,但是有的产品的会出现褶皱、透明度差、厚度不均匀、膜泡鱼眼多等问题,同时,随着人们环保意识的逐渐增强,塑料膜的重复利用率也就越来越高,因此,对于其抗撕裂强度、耐热稳定性,使用安全性等性能的要求也就更高。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种耐热双酚A改性聚四氟乙烯膜及其制备方法。
为实现上述目的,本发明采用以下技术方案:
一种耐热双酚A改性聚四氟乙烯膜,它是由下述重量份的原料组成的:
双酚A6-10、磷酸三乙酯13-20、油酸三乙醇胺1-2、聚四氟乙烯80-90、叔丁基对二苯酚0.3-1、环烷酸锂0.1-0.2、水和硼酸锌2-4、三羟甲基丙烷3-5、硅藻土16-20、甲醇锂0.01-0.03。
一种耐热双酚A改性聚四氟乙烯膜的制备方法,包括以下步骤:
(1)取叔丁基对二苯酚,加入到其重量5-7倍的异丙醇中,搅拌均匀,得异丙醇溶液;
(2)取硅藻土,在700-800℃下煅烧1-2小时,冷却至常温,磨成细粉,加入三羟甲基丙烷,升高温度为50-60℃,保温搅拌100-130分钟,得改性硅藻土;
(3)取油酸三乙醇胺,加入到其重量15-20倍的去离子水中,搅拌均匀,得醇胺水溶液;
(4)取双酚A,加入到上述异丙醇溶液中,搅拌均匀,送入到反应釜中,加入磷酸三乙酯,升高温度为75-80℃,加入甲醇锂,保温搅拌1-2小时,加入环烷酸锂,搅拌至常温,得耐热分散液;
(5)取改性硅藻土,加入到上述耐热分散液中,搅拌均匀,加入到上述醇胺水溶液中,超声20-30分钟,加入水和硼酸锌,搅拌均匀,过滤,将沉淀水洗,常温干燥,得耐热硅藻土;
(6)取上述耐热硅藻土,与剩余各原料混合,搅拌均匀,送入到挤出机中,流延成膜,即得所述耐热双酚A改性聚四氟乙烯膜。
本发明的优点:
本发明首先以硅藻土为原料,通过三羟甲基丙烷处理,能够有效的改善其表面活性,然后以双酚A为原料,与磷酸三乙酯共混,采用甲醇锂为催化剂,经过高温反应,得到耐热的双酚A酯,之后再将其与有机化的硅藻土共混,以油酸三乙醇胺水溶液为分散剂,实现双酚A酯与硅藻土的有效相容,从而提高成品薄膜的力学稳定性强度和耐热稳定性。
具体实施方式
实施例1
一种耐热双酚A改性聚四氟乙烯膜,它是由下述重量份的原料组成的:
双酚A6、磷酸三乙酯13、油酸三乙醇胺1、聚四氟乙烯80、叔丁基对二苯酚0.3、环烷酸锂0.1、水和硼酸锌2、三羟甲基丙烷3、硅藻土16、甲醇锂0.01。
一种耐热双酚A改性聚四氟乙烯膜的制备方法,包括以下步骤:
(1)取叔丁基对二苯酚,加入到其重量5倍的异丙醇中,搅拌均匀,得异丙醇溶液;
(2)取硅藻土,在800℃下煅烧2小时,冷却至常温,磨成细粉,加入三羟甲基丙烷,升高温度为60℃,保温搅拌130分钟,得改性硅藻土;
(3)取油酸三乙醇胺,加入到其重量20倍的去离子水中,搅拌均匀,得醇胺水溶液;
(4)取双酚A,加入到上述异丙醇溶液中,搅拌均匀,送入到反应釜中,加入磷酸三乙酯,升高温度为80℃,加入甲醇锂,保温搅拌2小时,加入环烷酸锂,搅拌至常温,得耐热分散液;
(5)取改性硅藻土,加入到上述耐热分散液中,搅拌均匀,加入到上述醇胺水溶液中,超声30分钟,加入水和硼酸锌,搅拌均匀,过滤,将沉淀水洗,常温干燥,得耐热硅藻土;
(6)取上述耐热硅藻土,与剩余各原料混合,搅拌均匀,送入到挤出机中,流延成膜,即得所述耐热双酚A改性聚四氟乙烯膜。
实施例2
一种耐热双酚A改性聚四氟乙烯膜,它是由下述重量份的原料组成的:
双酚A10、磷酸三乙酯20、油酸三乙醇胺2、聚四氟乙烯90、叔丁基对二苯酚1、环烷酸锂0.2、水和硼酸锌4、三羟甲基丙烷5、硅藻土16-20、甲醇锂0.03。
一种耐热双酚A改性聚四氟乙烯膜的制备方法,包括以下步骤:
(1)取叔丁基对二苯酚,加入到其重量5-7倍的异丙醇中,搅拌均匀,得异丙醇溶液;
(2)取硅藻土,在700℃下煅烧1小时,冷却至常温,磨成细粉,加入三羟甲基丙烷,升高温度为50℃,保温搅拌100分钟,得改性硅藻土;
(3)取油酸三乙醇胺,加入到其重量15倍的去离子水中,搅拌均匀,得醇胺水溶液;
(4)取双酚A,加入到上述异丙醇溶液中,搅拌均匀,送入到反应釜中,加入磷酸三乙酯,升高温度为75℃,加入甲醇锂,保温搅拌1小时,加入环烷酸锂,搅拌至常温,得耐热分散液;
(5)取改性硅藻土,加入到上述耐热分散液中,搅拌均匀,加入到上述醇胺水溶液中,超声20分钟,加入水和硼酸锌,搅拌均匀,过滤,将沉淀水洗,常温干燥,得耐热硅藻土;
(6)取上述耐热硅藻土,与剩余各原料混合,搅拌均匀,送入到挤出机中,流延成膜,即得所述耐热双酚A改性聚四氟乙烯膜。
Claims (2)
1.一种耐热双酚A改性聚四氟乙烯膜,其特征在于,它是由下述重量份的原料组成的:
双酚A6-10、磷酸三乙酯13-20、油酸三乙醇胺1-2、聚四氟乙烯80-90、叔丁基对二苯酚0.3-1、环烷酸锂0.1-0.2、水和硼酸锌2-4、三羟甲基丙烷3-5、硅藻土16-20、甲醇锂0.01-0.03。
2.一种如权利要求1所述的耐热双酚A改性聚四氟乙烯膜的制备方法,其特征在于,包括以下步骤:
(1)取叔丁基对二苯酚,加入到其重量5-7倍的异丙醇中,搅拌均匀,得异丙醇溶液;
(2)取硅藻土,在700-800℃下煅烧1-2小时,冷却至常温,磨成细粉,加入三羟甲基丙烷,升高温度为50-60℃,保温搅拌100-130分钟,得改性硅藻土;
(3)取油酸三乙醇胺,加入到其重量15-20倍的去离子水中,搅拌均匀,得醇胺水溶液;
(4)取双酚A,加入到上述异丙醇溶液中,搅拌均匀,送入到反应釜中,加入磷酸三乙酯,升高温度为75-80℃,加入甲醇锂,保温搅拌1-2小时,加入环烷酸锂,搅拌至常温,得耐热分散液;
(5)取改性硅藻土,加入到上述耐热分散液中,搅拌均匀,加入到上述醇胺水溶液中,超声20-30分钟,加入水和硼酸锌,搅拌均匀,过滤,将沉淀水洗,常温干燥,得耐热硅藻土;
(6)取上述耐热硅藻土,与剩余各原料混合,搅拌均匀,送入到挤出机中,流延成膜,即得所述耐热双酚A改性聚四氟乙烯膜。
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