CN109679326A - 一种光学抛光材料 - Google Patents

一种光学抛光材料 Download PDF

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CN109679326A
CN109679326A CN201811475664.8A CN201811475664A CN109679326A CN 109679326 A CN109679326 A CN 109679326A CN 201811475664 A CN201811475664 A CN 201811475664A CN 109679326 A CN109679326 A CN 109679326A
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王杰
郇彦
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Changchun A&z Science Co Ltd
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Abstract

本发明涉及一种光学抛光材料，属于抛光材料技术领域。解决了现有技术中聚氨酯抛光垫偏硬和发脆，缺乏韧性和弹性的技术问题。本发明的光学抛光材料，由聚醚多元醇100重量份、二异氰酸酯100重量份、双酚A型环氧树脂1‑2重量份、短切尼龙纤维3‑5重量份、甲壳素4‑6重量份、硅油2‑3重量份、氯化石蜡2‑3重量份、乙二醇1‑2重量份、马来酸酐接枝聚丙烯10‑15重量份、二甲基环己胺0.5‑1重量份、丙酮2‑4重量份、贝壳粉2‑3重量份、硬脂酸锌2‑3重量份、三(2,4‑二叔丁基苯基)亚磷酸酯1‑2重量份、抗氧剂1010 1‑2重量份、碳化二亚胺0.5‑1重量份和氧化铈4‑8重量份组成。该抛光材料拉伸强度高，回弹性好，耐磨性好，合模性好，不易钝化。

Description

一种光学抛光材料
技术领域
本发明属于抛光材料技术领域，具体涉及一种光学抛光材料。
背景技术
玻璃历史悠久，性质稳定，是历经时间考验的优良材料，不但能够用于装饰，也可在各种光学仪器中发挥重要作用，甚至能够用来帮助建筑节能降噪。玻璃表面不够光滑明净，被应用前都需经过必要的表面抛光，因此就产生抛光材料。
现有技术中，早期使用的抛光材料主要有氧化钛、氧化铁或二氧化硅等；近年来，随着电子信息技术的迅猛发展，透镜、平板玻璃、液晶显示器(LCD)、眼镜、光学元件及陶瓷材料等玻璃基材的需求大大增加，对于抛光材料的精度和抛光速率也提出了更高的要求，氧化铈具有抛光速度快、光洁度好、使用寿命长、不污染环境、且易于从沾着物上除去等优点，因此被认为更适合于玻璃材料的表面抛光，已成为当今适用范围广、用量大、技术含量高的抛光产品。
但是，单一采用稀土作为抛光材料，成本较高，为了解决这一问题，人们将稀土磨粉与高分子材料进行复合生产抛光材料，以降低成本，如在聚氨酯微孔发泡体系中加入氧化铈抛光粉，经发泡、固化制成具有微孔结构的热固型材料，切成片状后得到聚氨酯抛光片，用于光学玻璃抛光。但是，由于这种聚氨酯基体往往偏硬和发脆，缺乏韧性和弹性。在抛光过程中，抛光垫与工件的合模性较差，而且容易产生钝化造成切削率下降。
发明内容
有鉴于此，本发明为解决现有技术中聚氨酯抛光垫偏硬和发脆，缺乏韧性和弹性的技术问题，提供一种光学抛光材料。
本发明解决上述技术问题采取的技术方案如下。
本发明提供一种光学抛光材料，组成及重量份为：
优选的是，所述聚醚多元醇的分子量为100-300，聚醚多元醇为聚醚210、聚醚303或聚醚3010。
优选的是，所述多异氰酸酯为二异氰酸酯。
优选的是，所述环氧树脂为双酚A型环氧树脂。
优选的是，所述短切尼龙纤维的长度为4-10mm。
优选的是，所述扩链剂为乙二醇或乙二胺。
优选的是，所述抗氧剂为受阻胺类抗氧剂或受阻酚类抗氧剂；更优选的，所述抗氧剂为三(2，4-二叔丁基苯酚)亚磷酸酯、四(β-(3,5二叔丁基-4-羟基苯基)丙酸)季戊四醇酯、(3,5-二叔丁基-4-羟基苯基)丙酸十八酯或β-(3,5-二叔丁基-4-羟基苯基)丙酸环己酯。
优选的是，所述热稳定剂为三(2,4-二叔丁基苯基)亚磷酸酯或双(2,4-二叔丁基苯基)季戊四醇二亚磷酸酯。
优选的是，所述发泡剂为丙酮。
优选的是，所述贝壳粉和氧化铈的粒径均为0.5-300μm。
本发明还提供上述光学抛光材料的制备方法,步骤如下：
步骤一、按组成及重量份，称取各组分；
步骤二、将聚醚多元醇、多异氰酸酯、环氧树脂、短切尼龙纤维、甲壳素、硅油、氯化石蜡、扩链剂、马来酸酐接枝聚丙烯、发泡剂、贝壳粉、硬脂酸锌、热稳定剂、抗氧剂、碳化二亚胺和氧化铈搅拌混合均匀，得到第一混合料；
步骤二、将二甲基环己胺加入第一混合料中，搅拌混合均匀，得到第二混合料；
步骤三、将第二混合料倒入模具内压模成型，最后机械切片成型，得到光学抛光材料。
优选的是，所述搅拌速度为500-1000转/分钟。
与现有技术相比，本发明的有益效果为：
本发明的光学抛光材料拉伸强度高，回弹性好，耐磨性好，合模性好，不易钝化，保持抛光过程的平稳、表面不变形，适用于LCD液晶基板，光学棱镜、透镜，手机盖板，钟表玻璃及水晶玻璃元件成组平面的抛光。
具体实施方式
为了进一步理解本发明，下面结合实施例对本发明优选实施方案进行描述，但是应当理解，这些描述只是为进一步说明本发明的特征和优点，而不是对本发明权利要求的限制。
实施例1
光学抛光材料，由聚醚多元醇100重量份、二异氰酸酯100重量份、双酚A型环氧树脂1重量份、短切尼龙纤维(4mm)3重量份、甲壳素4重量份、硅油2重量份、氯化石蜡2重量份、乙二醇1重量份、马来酸酐接枝聚丙烯10重量份、二甲基环己胺0.5重量份、丙酮2重量份、贝壳粉(50μm)2重量份、硬脂酸锌2重量份、三(2,4-二叔丁基苯基)亚磷酸酯1重量份、抗氧剂10101重量份、碳化二亚胺0.5重量份和氧化铈(80μm)8重量份组成。
实施例2
光学抛光材料，由聚醚多元醇100重量份、二异氰酸酯100重量份、双酚A型环氧树脂1.5重量份、短切尼龙纤维(4mm)4重量份、甲壳素5重量份、硅油2.5重量份、氯化石蜡2.5重量份、乙二醇1.5重量份、马来酸酐接枝聚丙烯12重量份、二甲基环己胺0.8重量份、丙酮3重量份、贝壳粉(50μm)2.5重量份、硬脂酸锌2.5重量份、三(2,4-二叔丁基苯基)亚磷酸酯1.5重量份、抗氧剂10101.5重量份、碳化二亚胺0.8重量份和氧化铈(100μm)6重量份组成。
实施例3
光学抛光材料，由聚醚多元醇100重量份、二异氰酸酯100重量份、双酚A型环氧树脂2重量份、短切尼龙纤维(4mm)5重量份、甲壳素6重量份、硅油3重量份、氯化石蜡3重量份、乙二醇2重量份、马来酸酐接枝聚丙烯15重量份、二甲基环己胺1重量份、丙酮4重量份、贝壳粉(50μm)3重量份、硬脂酸锌3重量份、三(2,4-二叔丁基苯基)亚磷酸酯2重量份、抗氧剂1010 2重量份、碳化二亚胺1重量份和氧化铈(120μm)8重量份组成。
对实施例1-3的耐磨抛光材料的性能进行检测，结果如表1所示。
表1实施例1-3的耐磨抛光材料的性能表征
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (10)

1.光学抛光材料，其特征在于，组成及重量份为：
2.根据权利要求1所述的光学抛光材料，其特征在于，所述聚醚多元醇的分子量为100-500，聚醚多元醇为聚醚210、聚醚303或聚醚3010。
3.根据权利要求1所述的光学抛光材料，其特征在于，所述多异氰酸酯为二异氰酸酯。
4.根据权利要求1所述的光学抛光材料，其特征在于，所述环氧树脂为双酚A型环氧树脂。
5.根据权利要求1所述的光学抛光材料，其特征在于，所述短切尼龙纤维的长度为4-10mm。
6.根据权利要求1所述的光学抛光材料，其特征在于，所述扩链剂为乙二醇或乙二胺。
7.根据权利要求1所述的光学抛光材料，其特征在于，所述抗氧剂为受阻胺类抗氧剂或受阻酚类抗氧剂。
8.根据权利要求1所述的光学抛光材料，其特征在于，所述热稳定剂为三(2,4-二叔丁基苯基)亚磷酸酯或双(2,4-二叔丁基苯基)季戊四醇二亚磷酸酯。
9.根据权利要求1所述的光学抛光材料，其特征在于，所述发泡剂为丙酮。
10.根据权利要求1所述的耐磨抛光材料，其特征在于，所述贝壳粉和氧化铈的粒径均为0.5-300μm。
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