CN109266045A - 一种氟修饰疏水纳米球及其制备方法 - Google Patents

一种氟修饰疏水纳米球及其制备方法 Download PDF

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CN109266045A
CN109266045A CN201810758119.3A CN201810758119A CN109266045A CN 109266045 A CN109266045 A CN 109266045A CN 201810758119 A CN201810758119 A CN 201810758119A CN 109266045 A CN109266045 A CN 109266045A
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章麒
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Tongcheng Xin Rui Construction Engineering Co Ltd
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Abstract

本发明公开了一种氟修饰疏水纳米球,它是由下述重量份的原料组成的:1H,1H,2H,2H‑全氟癸基三乙氧基硅烷1‑2、饱和十八碳酰胺1‑2、均苯四酸二酐25‑30、正硅酸乙酯100‑140、过硫酸钠0.4‑0.6、对甲基苯磺酸0.1‑0.2,本发明在引发剂作用下聚合,得到含氟聚合物溶液,之后将其在酰胺水溶液中水解,干燥得到纳米球,本发明的纳米球具有很好的表面疏水性能。

Description

一种氟修饰疏水纳米球及其制备方法
技术领域
本发明属于材料领域,具体涉及一种氟修饰疏水纳米球及其制备方法。
背景技术
纳米二氧化硅是一种无机化工材料,俗称白炭黑,由于是超细纳米级,尺寸范围在1-100nm,因此具有许多独特的性质,如具有对抗紫外线的光学性能,能提高其他材料抗老化、强度和耐化学性能。用途非常广泛。纳米级二氧化硅为无定形白色粉末,无毒、无味、无污染,微结构为球形,呈絮状和网状的准颗粒结构,分子式和结构式为SiO2,不溶于水;纳米二氧化硅的用途分非常广泛,一般添加重量在0.5-2%,个别产品体系可到10%以上。对产品性能体现的关键是:充分分散到体系当中,因此,如何改善其表面活性,增强其添加的分散性能,是目前研究的重点,同时,进一步改善其表面疏水性能,对于增强纳米材料的品质也很重要。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种氟修饰疏水纳米球及其制备方法。
为实现上述目的,本发明采用以下技术方案:
一种氟修饰疏水纳米球,它是由下述重量份的原料组成的:
1H,1H,2H,2H-全氟癸基三乙氧基硅烷1-2、饱和十八碳酰胺1-2、均苯四酸二酐25-30、正硅酸乙酯100-140、过硫酸钠0.4-0.6、对甲基苯磺酸0.1-0.2。
一种氟修饰疏水纳米球的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到其重量15-20倍的去离子水中,搅拌均匀;
(2)取1H,1H,2H,2H-全氟癸基三乙氧基硅烷,加入到其重量5-7倍的无水乙醇中,搅拌均匀,升高温度为55-60℃,保温搅拌10-20分钟,加入正硅酸乙酯,超声1-2小时,得含氟溶液;
(3)取均苯四酸二酐,加入到上述含氟溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为60-70℃,加入上述过硫酸钠水溶液,保温搅拌3-4小时,出料冷却,得含氟聚合物溶液;
(4)取饱和十八碳酰胺,加入到其重量25-30倍的去离子水中,搅拌均匀,得酰胺水溶液;
(5)取上述含氟聚合物溶液,加入到酰胺水溶液中,搅拌反应4-5小时,加入对甲基苯磺酸,升高温度为90-95℃,保温搅拌1-2小时,抽滤,将滤饼水洗,真空50-55℃下干燥1-2小时,冷却至常温,即得所述氟修饰疏水纳米球。
本发明的优点:
本发明采用1H,1H,2H,2H-全氟癸基三乙氧基硅烷处理正硅酸乙酯,然后以均苯四酸二酐为单体,以含氟溶液为反应溶剂,在引发剂作用下聚合,得到含氟聚合物溶液,之后将其在酰胺水溶液中水解,干燥得到纳米球,本发明的纳米球具有很好的表面疏水性能。
具体实施方式
实施例1
一种氟修饰疏水纳米球,它是由下述重量份的原料组成的:
1H,1H,2H,2H-全氟癸基三乙氧基硅烷1、饱和十八碳酰胺1、均苯四酸二酐25、正硅酸乙酯100、过硫酸钠0.4、对甲基苯磺酸0.1。
一种氟修饰疏水纳米球的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到其重量15倍的去离子水中,搅拌均匀;
(2)取1H,1H,2H,2H-全氟癸基三乙氧基硅烷,加入到其重量5倍的无水乙醇中,搅拌均匀,升高温度为55℃,保温搅拌10分钟,加入正硅酸乙酯,超声1小时,得含氟溶液;
(3)取均苯四酸二酐,加入到上述含氟溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为60℃,加入上述过硫酸钠水溶液,保温搅拌3小时,出料冷却,得含氟聚合物溶液;
(4)取饱和十八碳酰胺,加入到其重量25倍的去离子水中,搅拌均匀,得酰胺水溶液;
(5)取上述含氟聚合物溶液,加入到酰胺水溶液中,搅拌反应4小时,加入对甲基苯磺酸,升高温度为90℃,保温搅拌1小时,抽滤,将滤饼水洗,真空50℃下干燥1小时,冷却至常温,即得所述氟修饰疏水纳米球。
实施例2
一种氟修饰疏水纳米球,它是由下述重量份的原料组成的:
1H,1H,2H,2H-全氟癸基三乙氧基硅烷2、饱和十八碳酰胺2、均苯四酸二酐30、正硅酸乙酯140、过硫酸钠0.6、对甲基苯磺酸0.2。
一种氟修饰疏水纳米球的制备方法,包括以下步骤:
(1)取过硫酸钠,加入到其重量20倍的去离子水中,搅拌均匀;
(2)取1H,1H,2H,2H-全氟癸基三乙氧基硅烷,加入到其重量7倍的无水乙醇中,搅拌均匀,升高温度为60℃,保温搅拌20分钟,加入正硅酸乙酯,超声2小时,得含氟溶液;
(3)取均苯四酸二酐,加入到上述含氟溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为70℃,加入上述过硫酸钠水溶液,保温搅拌4小时,出料冷却,得含氟聚合物溶液;
(4)取饱和十八碳酰胺,加入到其重量25-30倍的去离子水中,搅拌均匀,得酰胺水溶液;
(5)取上述含氟聚合物溶液,加入到酰胺水溶液中,搅拌反应5小时,加入对甲基苯磺酸,升高温度为95℃,保温搅拌2小时,抽滤,将滤饼水洗,真空55℃下干燥2小时,冷却至常温,即得所述氟修饰疏水纳米球。
性能测试:
经测试,本发明氟修饰疏水纳米球的滚动接触角小于10°,疏水性高。

Claims (2)

1.一种氟修饰疏水纳米球,其特征在于,它是由下述重量份的原料组成的:
1H,1H,2H,2H-全氟癸基三乙氧基硅烷1-2、饱和十八碳酰胺1-2、均苯四酸二酐25-30、正硅酸乙酯100-140、过硫酸钠0.4-0.6、对甲基苯磺酸0.1-0.2。
2.一种如权利要求1所述氟修饰疏水纳米球的制备方法,其特征在于,包括以下步骤:
(1)取过硫酸钠,加入到其重量15-20倍的去离子水中,搅拌均匀;
(2)取1H,1H,2H,2H-全氟癸基三乙氧基硅烷,加入到其重量5-7倍的无水乙醇中,搅拌均匀,升高温度为55-60℃,保温搅拌10-20分钟,加入正硅酸乙酯,超声1-2小时,得含氟溶液;
(3)取均苯四酸二酐,加入到上述含氟溶液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为60-70℃,加入上述过硫酸钠水溶液,保温搅拌3-4小时,出料冷却,得含氟聚合物溶液;
(4)取饱和十八碳酰胺,加入到其重量25-30倍的去离子水中,搅拌均匀,得酰胺水溶液;
(5)取上述含氟聚合物溶液,加入到酰胺水溶液中,搅拌反应4-5小时,加入对甲基苯磺酸,升高温度为90-95℃,保温搅拌1-2小时,抽滤,将滤饼水洗,真空50-55℃下干燥1-2小时,冷却至常温,即得所述氟修饰疏水纳米球。
CN201810758119.3A 2018-07-11 2018-07-11 一种氟修饰疏水纳米球及其制备方法 Pending CN109266045A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116676807A (zh) * 2023-05-17 2023-09-01 中国人民大学 一种纸张脱酸分散液及其制备方法和应用

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107474591A (zh) * 2017-06-26 2017-12-15 江阴市天邦涂料股份有限公司 超疏水纳米涂料及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107474591A (zh) * 2017-06-26 2017-12-15 江阴市天邦涂料股份有限公司 超疏水纳米涂料及其制备方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116676807A (zh) * 2023-05-17 2023-09-01 中国人民大学 一种纸张脱酸分散液及其制备方法和应用

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