CN109097159A - 一种润滑纳米球及其制备方法 - Google Patents
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Abstract
本发明公开了一种润滑纳米球,它是由下述重量份的原料组成的:石墨粉74‑80、对羟基苯甲酸1‑2、甲基丙烯酸甲酯30‑40、丙烯酸10‑12、过硫酸铵0.7‑1、二硫化钼1‑2、三羟甲基丙烷2‑4、磷酸二氢铝3‑5、对甲基苯磺酸0.1‑0.2,本发明以甲基丙烯酸甲酯、丙烯酸为共混单体,得到酸化聚酯溶液,之后通过活化石墨烯与酸化聚酯共混,以对甲基苯磺酸为催化剂,促进三羟甲基丙烷与酸的酯化,从而提高了成品材料的表面润滑性能。
Description
技术领域
本发明属于材料领域,具体涉及一种润滑纳米球及其制备方法。
背景技术
石墨粉质软,黑灰色,有油腻感,可污染纸张。硬度为1-2,沿垂直方向随杂质的增加其硬度可增至3-5,比重为1.9-2.3。在隔绝氧气条件下,其熔点在3000℃以上,是最耐温的矿物之一。常温下石墨粉的化学性质比较稳定,不溶于水、稀酸、稀碱和有机溶剂;材料具有耐高温导电性能,可做耐火材料,导电材料,耐磨润滑材料;然而石墨粉经常会用于与各种有机聚合物复合,其表面活性低,从而影响成品复合材料的稳定性,因此,如何对其有机化改性,同时又不会降低其自身的润滑性能,就显得十分必要。
发明内容
本发明的目的在于针对现有技术的缺陷和不足,提供一种润滑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:
一种润滑纳米球,它是由下述重量份的原料组成的:
石墨粉74-80、对羟基苯甲酸1-2、甲基丙烯酸甲酯30-40、丙烯酸10-12、过硫酸铵0.7-1、二硫化钼1-2、三羟甲基丙烷2-4、磷酸二氢铝3-5、对甲基苯磺酸0.1-0.2。
一种润滑纳米球的制备方法,包括以下步骤:
(1)取过硫酸铵,加入到其重量20-30倍的去离子水中,搅拌均匀;
(2)取三羟甲基丙烷,加入到其重量40-50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,加入石墨粉,超声1-2小时,得活化石墨溶液;
(3)取磷酸二氢铝、二硫化钼混合,加入到混合料重量38-40倍的去离子水中,加入对羟基苯甲酸,在50-55℃下保温10-30分钟,得酸化分散液;
(4)取甲基丙烯酸甲酯、丙烯酸混合,加入到上述酸化分散液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为65-70℃,加入上述过硫酸铵水溶液,保温搅拌3-4小时,出料冷却,得聚酯乳液;
(5)取上述聚酯乳液,与活化石墨溶液混合,升高温度为110-120℃,加入对甲基苯磺酸,保温搅拌1-2小时,出料,加入剩余各原料,搅拌至常温,抽滤,将滤饼水洗,真空50-55℃下干燥1-2小时,冷却至常温,即得所述润滑纳米球。
本发明的优点:
本发明采用三羟甲基丙烷处理石墨烯,然后采用对羟基苯甲酸水溶液处理磷酸二氢铝、二硫化钼,以该酸溶液为反应溶剂,以甲基丙烯酸甲酯、丙烯酸为共混单体,得到酸化聚酯溶液,之后通过活化石墨烯与酸化聚酯共混,以对甲基苯磺酸为催化剂,促进三羟甲基丙烷与酸的酯化,从而提高了成品材料的表面润滑性能。
具体实施方式
实施例1
一种润滑纳米球,它是由下述重量份的原料组成的:
石墨粉74、对羟基苯甲酸1、甲基丙烯酸甲酯30、丙烯酸10、过硫酸铵0.7、二硫化钼1、三羟甲基丙烷2、磷酸二氢铝3、对甲基苯磺酸0.1。
一种润滑纳米球的制备方法,包括以下步骤:
(1)取过硫酸铵,加入到其重量20倍的去离子水中,搅拌均匀;
(2)取三羟甲基丙烷,加入到其重量40-50倍的无水乙醇中,搅拌均匀,升高温度为55℃,保温搅拌10分钟,加入石墨粉,超声1小时,得活化石墨溶液;
(3)取磷酸二氢铝、二硫化钼混合,加入到混合料重量38倍的去离子水中,加入对羟基苯甲酸,在50℃下保温10分钟,得酸化分散液;
(4)取甲基丙烯酸甲酯、丙烯酸混合,加入到上述酸化分散液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为65-70℃,加入上述过硫酸铵水溶液,保温搅拌3-4小时,出料冷却,得聚酯乳液;
(5)取上述聚酯乳液,与活化石墨溶液混合,升高温度为110℃,加入对甲基苯磺酸,保温搅拌1小时,出料,加入剩余各原料,搅拌至常温,抽滤,将滤饼水洗,真空50℃下干燥1小时,冷却至常温,即得所述润滑纳米球。
实施例2
一种润滑纳米球,它是由下述重量份的原料组成的:
石墨粉80、对羟基苯甲酸2、甲基丙烯酸甲酯40、丙烯酸12、过硫酸铵1、二硫化钼2、三羟甲基丙烷4、磷酸二氢铝3、对甲基苯磺酸0.2。
一种润滑纳米球的制备方法,包括以下步骤:
(1)取过硫酸铵,加入到其重量30倍的去离子水中,搅拌均匀;
(2)取三羟甲基丙烷,加入到其重量50倍的无水乙醇中,搅拌均匀,升高温度为60℃,保温搅拌20分钟,加入石墨粉,超声2小时,得活化石墨溶液;
(3)取磷酸二氢铝、二硫化钼混合,加入到混合料重量40倍的去离子水中,加入对羟基苯甲酸,在55℃下保温30分钟,得酸化分散液;
(4)取甲基丙烯酸甲酯、丙烯酸混合,加入到上述酸化分散液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为70℃,加入上述过硫酸铵水溶液,保温搅拌4小时,出料冷却,得聚酯乳液;
(5)取上述聚酯乳液,与活化石墨溶液混合,升高温度为120℃,加入对甲基苯磺酸,保温搅拌2小时,出料,加入剩余各原料,搅拌至常温,抽滤,将滤饼水洗,真空55℃下干燥2小时,冷却至常温,即得所述润滑纳米球。
性能测试:
缺口冲击强度(kJ/m2)为13-14、阿克隆磨耗cm3/1.61km为0.007-0.008。
Claims (2)
1.一种润滑纳米球,其特征在于,它是由下述重量份的原料组成的:
石墨粉74-80、对羟基苯甲酸1-2、甲基丙烯酸甲酯30-40、丙烯酸10-12、过硫酸铵0.7-1、二硫化钼1-2、三羟甲基丙烷2-4、磷酸二氢铝3-5、对甲基苯磺酸0.1-0.2。
2.一种如权利要求1所述润滑纳米球的制备方法,其特征在于,包括以下步骤:
(1)取过硫酸铵,加入到其重量20-30倍的去离子水中,搅拌均匀;
(2)取三羟甲基丙烷,加入到其重量40-50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,加入石墨粉,超声1-2小时,得活化石墨溶液;
(3)取磷酸二氢铝、二硫化钼混合,加入到混合料重量38-40倍的去离子水中,加入对羟基苯甲酸,在50-55℃下保温10-30分钟,得酸化分散液;
(4)取甲基丙烯酸甲酯、丙烯酸混合,加入到上述酸化分散液中,搅拌均匀,送入到反应釜中,通入氮气,调节反应釜温度为65-70℃,加入上述过硫酸铵水溶液,保温搅拌3-4小时,出料冷却,得聚酯乳液;
(5)取上述聚酯乳液,与活化石墨溶液混合,升高温度为110-120℃,加入对甲基苯磺酸,保温搅拌1-2小时,出料,加入剩余各原料,搅拌至常温,抽滤,将滤饼水洗,真空50-55℃下干燥1-2小时,冷却至常温,即得所述润滑纳米球。
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CN104130735A (zh) * | 2014-07-22 | 2014-11-05 | 深圳市华星光电技术有限公司 | 石墨烯球导电胶的制备方法及该石墨烯球导电胶 |
CN105622832A (zh) * | 2016-02-19 | 2016-06-01 | 成都新柯力化工科技有限公司 | 一种涂料用石墨烯微球的制备方法 |
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CN104130735A (zh) * | 2014-07-22 | 2014-11-05 | 深圳市华星光电技术有限公司 | 石墨烯球导电胶的制备方法及该石墨烯球导电胶 |
CN105622832A (zh) * | 2016-02-19 | 2016-06-01 | 成都新柯力化工科技有限公司 | 一种涂料用石墨烯微球的制备方法 |
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Application publication date: 20181228 |
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RJ01 | Rejection of invention patent application after publication |