CN106188854A - 一种载银沸石增强抗菌增强塑胶用铝颜料 - Google Patents

一种载银沸石增强抗菌增强塑胶用铝颜料 Download PDF

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CN106188854A
CN106188854A CN201610594820.7A CN201610594820A CN106188854A CN 106188854 A CN106188854 A CN 106188854A CN 201610594820 A CN201610594820 A CN 201610594820A CN 106188854 A CN106188854 A CN 106188854A
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zeolite
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carrying silver
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董前年
周涛
徐曈曈
徐俊军
朱双单
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HEFEI SUNRISE ALUMINIUM PIGMENTS Co Ltd
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Abstract

本发明公开了一种载银沸石增强抗菌增强塑胶用铝颜料，由下列重量份的原料制成：片状铝粉70‑75、甲基丙烯酰氧基丙基三甲氧基硅烷14‑15、无水乙醇适量、三羟甲基丙烷三丙烯酸酯28‑30、丙烯酸1‑1‑1.2、偶氮二异丁腈0.09‑0.1、聚乙烯吡咯烷酮1.75‑1.9、硬脂酸甘油酯3‑4、聚丙烯19‑20、松节油0.5‑0.6、沸石粉5‑6、0.1mol/L的硝酸银溶液50‑60、0.05mol/L的硝酸溶液适量、去离子水适量。本发明通过一定的工艺步骤将银离子负载在沸石孔隙中，然后通过与聚丙烯混料，能够提高分散性，而且具有持久的抗菌性，非常适合制造食品级或者医用塑胶件，安全无毒。

Description

一种载银沸石增强抗菌增强塑胶用铝颜料
技术领域
本发明涉及颜料技术领域，尤其涉及一种载银沸石增强抗菌增强塑胶用铝颜料。
背景技术
铝颜料又称铝银浆、铝银粉、片状铝粉，它具有平滑且极薄的鳞片状结构，是应用最多的金属效应颜料之一。铝颜料具备良好的防腐性能，还能反射可见光，具有银白色的金属光泽，同时随着角度的不同反射的光的强度也在变化，所以铝颜料具有很好的装饰效果；铝颜料也能反射红外光和紫外光，因而还具有保温性能和延缓涂层以及橡胶和塑料老化的作用。随着国家和社会关注程度的提高，低碳与环保的话题已不再是一个概念，而是已转化为实实在在的行动。随着材料和模具工艺的发展，免喷涂成为改性塑料发展的新趋势，树脂直接注塑成零件即可满足哑光、高光或者闪烁珠光等生产厂家要求的效果。免去了喷漆的工艺，就免去了对环境的伤害，而且大大降低了制造成本。家电、汽车、电子产品行业塑料件的涂装一般是通过工人手工来完成的，随着消费水平和物价的提高，在家电产品利润急剧降低的同时，工资大幅上涨，用工成本的上升已成为企业难以承担但是又必须承担的包袱。制备具有珠光效果、金属质感的塑料材料直接用于家电塑料外观件的加工成型可减少环境污染、提高产品外观档次、降低产品成本，提高产品竞争力。所以制备直接用于树脂注塑的铝颜料显得尤为重要，铝颜料在塑料行业中的应用越来越受到推崇。
专利《一种条状铝颜料及其制备方法》中通过将普通铝颜料进行清洗压滤然后与高分子聚合物以及助剂进行挤出，得到条状的铝颜料，所制得铝颜料在塑料中易分散，无粉尘，通用性好，塑料成型时可大大减少流痕，解决了铝颜料在树脂中不好分散的难题，但是树脂与铝颜料以及助剂是经过高温熔化再双螺杆或单螺杆挤出，由于挤出或注塑时温度都较高，高温下铝颜料容易变色或氧化，从而使工件表面金属色变暗，这就需要通过改性提高铝粉的热稳定性，降低铝颜料的腐蚀性。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种载银沸石增强抗菌增强塑胶用铝颜料。
本发明是通过以下技术方案实现的：
一种载银沸石增强抗菌增强塑胶用铝颜料，由下列重量份的原料制成：片状铝粉70-75、甲基丙烯酰氧基丙基三甲氧基硅烷14-15、无水乙醇适量、三羟甲基丙烷三丙烯酸酯28-30、丙烯酸1-1-1.2、偶氮二异丁腈0.09-0.1、聚乙烯吡咯烷酮1.75-1.9、硬脂酸甘油酯3-4、聚丙烯19-20、松节油0.5-0.6、沸石粉5-6、0.1mol/L的硝酸银溶液50-60、0.05mol/L的硝酸溶液适量、去离子水适量。
所述一种载银沸石增强抗菌增强塑胶用铝颜料，由以下具体步骤制成：
（1）将甲基丙烯酰氧基丙基三甲氧基硅烷溶4-5倍量的无水乙醇中，然后加入片状铝粉，加热至55-60℃，反应1-1.5小时后用无水乙醇洗涤数次，真空干燥得到偶联改性铝粉；
（2）将偶联改性铝粉中加入2-3倍量的无水乙醇，放入反应釜中，边搅拌边加入三羟甲基丙烷三丙烯酸酯、丙烯酸以及溶于等量无水乙醇的聚乙烯吡咯烷酮，氮气保护下加热至70-80℃，然后恒温滴加偶氮二异丁腈，然后升至85℃反应30-40分钟，待反应结束后再继续搅拌50-60分钟，自然冷却，离心分离，得到滤饼，最后将滤饼放入旋转蒸发器中蒸发掉无水乙醇，得到接枝铝粉；
（3）将沸石粉研磨，过200目筛然后加入到0.1mol/L的硝酸银溶液中，搅拌分散均匀后用0.05mol/L的硝酸溶液调节pH至6-8，加热至60-70℃，以300-400转/分的速度搅拌2-3小时，冷却后减压抽滤，用去离子水洗涤2-3次，最后将滤饼在100-110℃烘箱中干燥2-3小时，得到载银沸石粉抗菌剂；将聚丙烯加入混炼机中加热熔融，然后加入上述载银沸石粉抗菌剂，混炼均匀后加入松节油，保持转速80-100转/分，密闭状态下动态硫化6-7分钟，冷却后出料，破碎，得到改性助剂；
（4）将步骤（2）得到的接枝铝粉与步骤（3）得到的改性助剂混合，继续加入其余剩余成分，放入双螺杆挤出机中挤出形成长3-5mm、直径为1-2mm的圆柱体，控制挤出温度为90-120℃，最后在50-60℃下真空干燥5-6小时即得。
本发明的优点是：本发明首先通过甲基丙烯酰氧基丙基三甲氧基硅烷对片状铝粉进行偶联，使得片状铝粉表面转变为亲油性，使之与油性单体更好地相溶，以便在颗粒表面进行原位聚合反应，然后通过原位溶液聚合将三羟甲基丙烷三丙烯酸酯包覆在片状铝粉表面，包覆层薄而均匀，起到了增大粒子间排斥力的作用，相当于分散剂的作用，提高了铝粉的分散性能，同时能够阻隔铝粉与空气、水分直接接触，进一步提高了铝粉的耐腐蚀性能以及保持铝粉的活性，同时包覆后的铝粉热稳定性得到了很大的提高。
本发明通过一定的工艺步骤将银离子负载在沸石孔隙中，然后通过与聚丙烯混料，能够提高分散性，而且具有持久的抗菌性，非常适合制造食品级或者医用塑胶件，安全无毒，有利于改善日常生活工作环境。
具体实施方式
一种载银沸石增强抗菌增强塑胶用铝颜料，由下列重量份（公斤）的原料制成：片状铝粉70、甲基丙烯酰氧基丙基三甲氧基硅烷14、无水乙醇适量、三羟甲基丙烷三丙烯酸酯28、丙烯酸1、偶氮二异丁腈0.09、聚乙烯吡咯烷酮1.75、硬脂酸甘油酯3、聚丙烯19、松节油0.5、沸石粉5、0.1mol/L的硝酸银溶液50、0.05mol/L的硝酸溶液适量、去离子水适量。
所述一种载银沸石增强抗菌增强塑胶用铝颜料，由以下具体步骤制成：
（1）将甲基丙烯酰氧基丙基三甲氧基硅烷溶4倍量的无水乙醇中，然后加入片状铝粉，加热至55℃，反应1小时后用无水乙醇洗涤数次，真空干燥得到偶联改性铝粉；
（2）将偶联改性铝粉中加入2倍量的无水乙醇，放入反应釜中，边搅拌边加入三羟甲基丙烷三丙烯酸酯、丙烯酸以及溶于等量无水乙醇的聚乙烯吡咯烷酮，氮气保护下加热至70℃，然后恒温滴加偶氮二异丁腈，然后升至85℃反应30分钟，待反应结束后再继续搅拌50分钟，自然冷却，离心分离，得到滤饼，最后将滤饼放入旋转蒸发器中蒸发掉无水乙醇，得到接枝铝粉；
（3）将沸石粉研磨，过200目筛然后加入到0.1mol/L的硝酸银溶液中，搅拌分散均匀后用0.05mol/L的硝酸溶液调节pH至6，加热至60℃，以300转/分的速度搅拌2小时，冷却后减压抽滤，用去离子水洗涤2次，最后将滤饼在100℃烘箱中干燥2小时，得到载银沸石粉抗菌剂；将聚丙烯加入混炼机中加热熔融，然后加入上述载银沸石粉抗菌剂，混炼均匀后加入松节油，保持转速80转/分，密闭状态下动态硫化6分钟，冷却后出料，破碎，得到改性助剂；
（4）将步骤（2）得到的接枝铝粉与步骤（3）得到的改性助剂混合，继续加入其余剩余成分，放入双螺杆挤出机中挤出形成长3mm、直径为1mm的圆柱体，控制挤出温度为120℃，最后在50℃下真空干燥5小时即得。
经过试验，本发明产品表面光滑、无杂质、无色点色斑，耐温大于250℃，在塑料或橡胶产品中的分散性佳，用其制成的免喷涂注塑件表面平整、无流痕、容易脱模。

Claims (2)

1.一种载银沸石增强抗菌增强塑胶用铝颜料，其特征在于，由下列重量份的原料制成：片状铝粉70-75、甲基丙烯酰氧基丙基三甲氧基硅烷14-15、无水乙醇适量、三羟甲基丙烷三丙烯酸酯28-30、丙烯酸1-1-1.2、偶氮二异丁腈0.09-0.1、聚乙烯吡咯烷酮1.75-1.9、硬脂酸甘油酯3-4、聚丙烯19-20、松节油0.5-0.6、沸石粉5-6、0.1mol/L的硝酸银溶液50-60、0.05mol/L的硝酸溶液适量、去离子水适量。
2.根据权利要求1所述一种载银沸石增强抗菌增强塑胶用铝颜料，其特征在于，由以下具体步骤制成：
（1）将甲基丙烯酰氧基丙基三甲氧基硅烷溶4-5倍量的无水乙醇中，然后加入片状铝粉，加热至55-60℃，反应1-1.5小时后用无水乙醇洗涤数次，真空干燥得到偶联改性铝粉；
（2）将偶联改性铝粉中加入2-3倍量的无水乙醇，放入反应釜中，边搅拌边加入三羟甲基丙烷三丙烯酸酯、丙烯酸以及溶于等量无水乙醇的聚乙烯吡咯烷酮，氮气保护下加热至70-80℃，然后恒温滴加偶氮二异丁腈，然后升至85℃反应30-40分钟，待反应结束后再继续搅拌50-60分钟，自然冷却，离心分离，得到滤饼，最后将滤饼放入旋转蒸发器中蒸发掉无水乙醇，得到接枝铝粉；
（3）将沸石粉研磨，过200目筛然后加入到0.1mol/L的硝酸银溶液中，搅拌分散均匀后用0.05mol/L的硝酸溶液调节pH至6-8，加热至60-70℃，以300-400转/分的速度搅拌2-3小时，冷却后减压抽滤，用去离子水洗涤2-3次，最后将滤饼在100-110℃烘箱中干燥2-3小时，得到载银沸石粉抗菌剂；将聚丙烯加入混炼机中加热熔融，然后加入上述载银沸石粉抗菌剂，混炼均匀后加入松节油，保持转速80-100转/分，密闭状态下动态硫化6-7分钟，冷却后出料，破碎，得到改性助剂；
（4）将步骤（2）得到的接枝铝粉与步骤（3）得到的改性助剂混合，继续加入其余剩余成分，放入双螺杆挤出机中挤出形成长3-5mm、直径为1-2mm的圆柱体，控制挤出温度为90-120℃，最后在50-60℃下真空干燥5-6小时即得。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109011921A (zh) * 2018-09-10 2018-12-18 杭州博大净化设备有限公司 一种空气过滤器用高效空气过滤膜及其制备方法
CN114381144A (zh) * 2022-01-21 2022-04-22 中国科学院兰州化学物理研究所 一种混维凹凸棒石黏土制备聚合物着色补强用铋黄杂化颜料的方法

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CN102604445A (zh) * 2012-02-15 2012-07-25 合肥旭阳铝颜料有限公司 高耐电压击穿性能铝颜料的制备方法

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Publication number Priority date Publication date Assignee Title
CN109011921A (zh) * 2018-09-10 2018-12-18 杭州博大净化设备有限公司 一种空气过滤器用高效空气过滤膜及其制备方法
CN109011921B (zh) * 2018-09-10 2021-01-15 杭州博大净化设备有限公司 一种空气过滤器用高效空气过滤膜及其制备方法
CN114381144A (zh) * 2022-01-21 2022-04-22 中国科学院兰州化学物理研究所 一种混维凹凸棒石黏土制备聚合物着色补强用铋黄杂化颜料的方法

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