CN113384472A - 一种皮肤防晒材料 - Google Patents
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Abstract
本发明公开了一种皮肤防晒材料,具体制备工艺如下:(1)将六亚甲基二异氰酸酯和十二烷基硫酸钠和聚乙二醇在35‑45℃下搅拌得到六亚甲基二异氰酸酯聚合物;(2)向步骤(1)的混合液中加入钨酸钠,随后滴加三乙醇胺,190‑200℃下反应,得到核壳球状的六亚甲基二异氰酸酯聚合物‑WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳;将步骤(2)的复合材料分散于去离子水中,随后加入三氨丙基三乙氧基硅烷和乙酸,40‑50℃下混合搅拌;随后加入Ce盐和三乙醇胺以及氧化石墨炔,190‑200℃下反应,得到六亚甲基二异氰酸酯聚合物‑WO3‑CeO2/石墨炔。
Description
技术领域
本发明属于防晒材料制备技术领域。
背景技术
近年来,随着臭氧层被破坏,紫外辐射对人体的危害变得不容忽视。人体皮肤长期暴露于紫外线辐射中会导致多种不良反应,比如晒伤、皮肤老化甚至皮肤癌症,而且,皮肤暴露在紫外线下会增加自由基从而损伤gDNA、导致免疫抑制细胞因子。在皮肤上涂抹具有抗紫外线功能的防晒霜能够使得皮肤免受损伤,目前,市面上常见的防晒剂包括防晒剂、防晒乳、防晒霜等。
防晒剂主要为无机氧化物,其防晒机理为通过反射或散射紫外线从而对皮肤起保护作用。加入防晒剂到防晒及护肤产品中可以保护细胞及免疫系统。现有技术中使用物理防晒的主要原料有TiO2、ZnO、WO3等,但是其面临诸多技术问题,例如无机颗粒的尺寸过大防晒性能过低;无机颗粒尺寸太小后虽然防晒性能好,但是容易导致堵塞毛囊,并且涂抹较厚不利于人体散热降温。
发明内容
本发明的目的是为了克服现有技术中物理防晒剂粒径无法有效控制,且涂抹较厚不利于皮肤的散热和降温,使用舒适感差的问题,提供一种防晒霜及其制备方法,其中防晒剂采用核壳球状防晒粒子,防晒剂对紫外线具有良好的反射性能,并且在人体表面构建辐射散热的通道,有利于皮肤的散热和降温。
一种皮肤防晒材料,其特征在于所述防晒液中包括六亚甲基二异氰酸酯聚合物-WO3-CeO2/石墨炔,具体制备工艺如下:
(1)将六亚甲基二异氰酸酯和十二烷基硫酸钠和聚乙二醇在35-45℃下搅拌得到六亚甲基二异氰酸酯聚合物;
(2)向步骤(1)的混合液中加入钨酸钠,随后滴加三乙醇胺,190-200℃下反应,得到核壳球状的六亚甲基二异氰酸酯聚合物-WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳;
(3)将步骤(2)的复合材料洗涤,分散于去离子水中,随后加入三氨丙基三乙氧基硅烷和乙酸,40-50℃下混合搅拌;随后加入Ce盐和三乙醇胺以及氧化石墨炔,190-200℃下反应,得到六亚甲基二异氰酸酯-WO3-CeO2/石墨炔。
优选的,步骤(2)、(3)反应时间为5-8h;
优选的,六亚甲基二异氰酸酯和十二烷基硫酸钠质量比为1:(0.3-0.5);
优选的,步骤(1)中的搅拌时间为1-2h。
有益效果:
本发明通过六亚甲基二异氰酸酯聚合物表面负载WO3,WO3分散于六亚甲基二异氰酸酯聚合物外部,提高其分散性,从而保证紫外吸收性能;(2)通过在WO3、CeO2引入三乙醇胺,有利于纳米级别的包覆,避免颗粒的迅速长大;(3)三氨丙基三乙氧基硅烷、乙酸有利于WO3上形成-NH2-、-COOH,其与最外壳层的CeO2以及石墨炔上残余的含氧官能团形成氢键,提高了CeO2以及石墨炔的分散稳定性,避免了因粒子团聚;(4)核壳结构防晒剂,通过三层核壳的多次反射和辐射,能够有效地降温,形成人体辐射散热通道,最外层的石墨炔加强了散热性;具有选择性纳米孔道,与其他碳材料,如石墨烯等相比,更有利于紫外光反射和辐射,有效地降低皮肤表面温度。WO3、CeO2组合使用获得广谱防晒功能。
附图说明
图1实施例1的防晒剂的SEM图。
具体实施方式
实施例1
(1)将18mg的六亚甲基二异氰酸酯和7mg的十二烷基硫酸钠和4mg的聚乙二醇在35-45℃下搅拌1h;
(2)向步骤(1)的混合液中加入2mmol钨酸钠,随后滴加三乙醇胺8mg,190℃下反应,得到核壳结构的六亚甲基二异氰酸酯聚合物-WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳;
(3)将步骤(3)的复合材料洗涤,分散于30ml去离子水中,随后加入2mg三氨丙基三乙氧基硅烷和2mg乙酸,40℃下混合搅拌1h;随后加入1mmol的硝酸铈和2mg三乙醇胺以及50mg的氧化石墨炔,190℃下反应,得到六亚甲基二异氰酸酯聚合物-WO3-CeO2/石墨炔。
对比例1
(1)将18mg的六亚甲基二异氰酸酯和7mg的十二烷基硫酸钠和4mg的聚乙二醇在35-45℃下搅拌1h;
(2)向步骤(1)的混合液中加入2mmol钨酸钠,随后滴加三乙醇胺8mg,190℃下反应,得到核壳结构的六亚甲基二异氰酸酯聚合物-WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳。
对比例2
将1mmol的硝酸铈和2mg三乙醇胺以及50mg的氧化石墨炔分散于30ml水中,190℃下反应,得到CeO2/石墨炔。
对比例3
(1)将18mg的六亚甲基二异氰酸酯和7mg的十二烷基硫酸钠和4mg的聚乙二醇在35-45℃下搅拌1h;
(2)向步骤(1)的混合液中加入2mmol钨酸钠,随后滴加三乙醇胺8mg,190℃下反应,得到核壳结构的六亚甲基二异氰酸酯聚合物-WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳;
(3)将步骤(3)的复合材料洗涤,分散于30ml去离子水中,随后加入2mg三氨丙基三乙氧基硅烷和2mg乙酸,40℃下混合搅拌1h;随后加入1mmol的硝酸铈和2mg三乙醇胺,190℃下反应,得到六亚甲基二异氰酸酯聚合物-WO3-CeO2。
SPF | PA | |
实施例1 | 38.9 | 19.7 |
对比例1 | 37.1 | 12.1 |
对比例2 | 35.3 | 14.8 |
对比例3 | 36.0 | 13.4 |
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求等同物限定。
Claims (4)
1.一种皮肤防晒材料,其特征在于所述防晒材料中包括六亚甲基二异氰酸酯聚合物-WO3-CeO2/石墨炔,具体制备工艺如下:
(1)将六亚甲基二异氰酸酯和十二烷基硫酸钠和聚乙二醇在35-45℃下搅拌得到六亚甲基二异氰酸酯聚合物;
(2)向步骤(1)的混合液中加入钨酸钠,随后滴加三乙醇胺,190-200℃下反应,得到核壳球状的,粒径为500-1000nm的六亚甲基二异氰酸酯聚合物-WO3复合材料,其中核为六亚甲基二异氰酸酯聚合物,WO3为壳;
(3)将步骤(2)的复合材料洗涤,分散于去离子水中,随后加入三氨丙基三乙氧基硅烷和乙酸,40-50℃下混合搅拌;随后加入Ce盐和三乙醇胺以及氧化石墨炔,190-200℃下反应,得到六亚甲基二异氰酸酯-WO3-CeO2/石墨炔。
2.根据权利要求1所述的皮肤防晒材料,步骤(2)、(3)反应时间为5-8h。
3.根据权利要求1所述的皮肤防晒材料,六亚甲基二异氰酸酯和十二烷基硫酸钠质量比为1:(0.3-0.5)。
4.根据权利要求1所述的皮肤防晒材料,步骤(1)中的搅拌时间为1-2h。
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CN105016962A (zh) * | 2015-06-23 | 2015-11-04 | 上海师范大学 | 一种石墨炔的制备方法 |
CN107857869A (zh) * | 2017-11-27 | 2018-03-30 | 上海金狮化工有限公司 | 水性聚氨酯及其制备方法和应用 |
CN108175716A (zh) * | 2016-12-08 | 2018-06-19 | 万华化学集团股份有限公司 | 聚氨酯空心微球的制备方法和包含它的光防护化妆品组合物 |
CN108524309A (zh) * | 2018-07-17 | 2018-09-14 | 赵宏伟 | 一种具有防水性的防晒化妆品及制备方法 |
CN109337161A (zh) * | 2018-09-17 | 2019-02-15 | 成都新柯力化工科技有限公司 | 一种由核壳结构改善分散的石墨烯阻燃母料及制备方法 |
CN110613633A (zh) * | 2018-06-19 | 2019-12-27 | 上海万华科聚化工科技发展有限公司 | 一种水性聚氨酯分散体及其制备方法以及防晒化妆品组合物 |
CN111544336A (zh) * | 2020-05-21 | 2020-08-18 | 长沙蓝姿生物科技有限公司 | 一种防晒霜及其制备方法 |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105016962A (zh) * | 2015-06-23 | 2015-11-04 | 上海师范大学 | 一种石墨炔的制备方法 |
CN108175716A (zh) * | 2016-12-08 | 2018-06-19 | 万华化学集团股份有限公司 | 聚氨酯空心微球的制备方法和包含它的光防护化妆品组合物 |
CN107857869A (zh) * | 2017-11-27 | 2018-03-30 | 上海金狮化工有限公司 | 水性聚氨酯及其制备方法和应用 |
CN110613633A (zh) * | 2018-06-19 | 2019-12-27 | 上海万华科聚化工科技发展有限公司 | 一种水性聚氨酯分散体及其制备方法以及防晒化妆品组合物 |
CN108524309A (zh) * | 2018-07-17 | 2018-09-14 | 赵宏伟 | 一种具有防水性的防晒化妆品及制备方法 |
CN109337161A (zh) * | 2018-09-17 | 2019-02-15 | 成都新柯力化工科技有限公司 | 一种由核壳结构改善分散的石墨烯阻燃母料及制备方法 |
CN111544336A (zh) * | 2020-05-21 | 2020-08-18 | 长沙蓝姿生物科技有限公司 | 一种防晒霜及其制备方法 |
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