CN106189782A - 一种灯具用防眩光玻璃涂料的制备方法 - Google Patents
一种灯具用防眩光玻璃涂料的制备方法 Download PDFInfo
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Abstract
本发明公开了一种灯具用防眩光玻璃涂料的制备方法,属于防眩光玻璃涂料制备技术领域。本发明取猪皮碱处理和脱脂处理后冷冻干燥备用,再取贝壳用酸浸泡后,干燥碾磨过筛得贝壳粉末,与去离子水混合后加入水性聚氨酯树脂中,并通二氧化碳气体与贝壳粉末中的碳酸钙反应成溶于水的碳酸氢钙,并在冰水浴中加入纳米二氧化钛、备用的粉末、硫酸锌等物质搅拌混合,用滤布过滤得滤液,低温保存得防眩光玻璃涂料。本发明制备步骤简单,与基体附着力高;制备得的涂料涂覆使用后,在阳光照射下,涂料中的碳酸氢钙分解生成碳酸钙和二氧化碳,均匀分布在玻璃制品表面即可达到防眩光玻璃目的,有效解决了其硬度较差,不耐摩擦,易划伤,防眩光效果差问题。
Description
技术领域
本发明涉及一种灯具用防眩光玻璃涂料的制备方法,属于防眩光玻璃涂料制备技术领域。
背景技术
眩光是指视野中由于不适宜亮度分布,或在空间或时间上存在极端的亮度对比,以致引起视觉不舒适和降低物体可见度的视觉条件。视野内产生人眼无法适应之光亮感觉,可能引起厌恶、不舒服甚或丧失明视度。在视野中某—局部地方出现过高的亮度或前后发生过大的亮度变化。眩光是引起视觉疲劳的重要原因之一。这种不舒适感觉主要是因为人所处的环境中光线的分布不均匀、亮度的差别比较大或者是在较短的时间内环境中的光线出现瞬时对比变化而引起的。基于现实生活中存在的这种问题,迫切需要制备一种透明的防眩光涂层,主要是应用在室内照明的灯具、灯罩以及汽车车灯等,起到防眩光的作用。对于这种涂层的制备主要是涂覆、表面处理等手段,按照制备方法来分常有湿法和干法两类。湿法一般是指利用溶胶-凝胶法或乳液聚合制得到成膜乳液,经过喷涂、刮涂、旋涂、或浸渍等方法防眩光的涂料涂覆在想要保护的表面,经过表面固化或其他处理手段后得到防眩光涂层。干法一般是指化学气相沉积法、真空蒸发法、电子溅射法、反应离子镀法等方法将防眩光材料沉积或刻蚀到材料表面形成防眩光层。但目前的防眩光涂层涂布不均匀,与基体附着力低,硬度较差,不耐摩擦,易划伤,防眩光效果差。
发明内容
本发明所要解决的技术问题:针对目前防眩光涂层涂布不均匀,与基体附着力低,硬度较差,不耐摩擦,易划伤,防眩光效果差的弊端,提供了一种灯具用防眩光玻璃涂料的制备方法,本发明取猪皮碱处理和脱脂处理后冷冻干燥备用,再取贝壳用酸浸泡后,干燥碾磨过筛得贝壳粉末,与去离子水混合后加入水性聚氨酯树脂中,并通二氧化碳气体与贝壳粉末中的碳酸钙反应成溶于水的碳酸氢钙,并在冰水浴中加入纳米二氧化钛、备用的粉末、硫酸锌等物质搅拌混合,用滤布过滤得滤液,低温保存得防眩光玻璃涂料。本发明制备步骤简单,与基体附着力高;制备得的涂料涂覆使用后,在阳光照射下,涂料中的碳酸氢钙分解生成碳酸钙和二氧化碳,均匀分布在玻璃制品表面即可达到防眩光玻璃目的,有效解决了其硬度较差,不耐摩擦,易划伤,防眩光效果差问题。
为解决上述技术问题,本发明采用如下所述的技术方案是:
(1)称取150~200g新鲜猪皮,按固液比1:5将猪皮与质量分数10%氢氧化钠溶液混合,浸泡2~3天后过滤,将滤渣重复浸泡步骤2~4次后用蒸馏水冲洗至浸泡物为中性,将浸泡物按固液比1:5与正丁醇混合,并浸泡脱脂24~30h,脱脂后过滤得滤渣,将滤渣冷冻干燥后粉碎,过150~170目筛,得粉末,备用;
(2)称取500~700g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡1~2h,浸泡后取出,并用去离子水清洗2~4次,将清洗后的贝壳放入烘箱中,在60~80℃条件下干燥6~8h,干燥后放入球磨机中球磨2~3h,过180~200目筛,得贝壳粉末;
(3)称取40~60g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散15~20min,得悬浮液,随后称取80~100g水性聚氨酯树脂,向水性聚氨酯树脂中加入100~150g悬浮液,机械搅拌混合30~40min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为20~22mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌5~6h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;
(4)将上述通入气体后的三口烧瓶放入冰水浴锅中,在0~5℃条件下,向烧瓶中分别加入5~10g纳米二氧化钛、10~15g步骤(1)备用的粉末、12~15g硫酸锌、5~10g滑石粉、3~5g羧甲基纤维素、0.3~0.8gOTD消泡剂、1~3g固化剂303,机械搅拌混合25~30min,搅拌后将烧瓶中的产物倒出,并用150~170目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
本发明的应用方法:选取平板玻璃,分别用无水乙醇、丙酮、去离子水擦拭玻璃表面后,放入烘箱中,在50~60℃温度下干燥3~4h,随后将本发明制得防眩光玻璃涂料用辊涂方式均匀涂覆于玻璃表面,涂覆量为15~25g/m2,将涂覆后的玻璃在60~70℃的烘箱中固化5~7h,得防眩光玻璃。该防眩光玻璃在可见光下,入射光为0°~90°时,玻璃的粗糙度为60.5~86.0nm,光在玻璃界面的反射率为为5.0~9.6%;本发明的防眩光玻璃涂料涂布均匀,与基体附着力高,防眩光效果好。
本发明与其他方法相比,有益技术效果是:
(1)本发明制备步骤简单,所得产品涂布均匀,与基体附着力高;
(2)充分利用贝壳粉末、水性聚氨酯树脂、纳米二氧化钛等制得防眩光玻璃涂料,针对性强,可有效提高其硬度、耐摩擦性和防眩光效果。
具体实施方式
称取150~200g新鲜猪皮,按固液比1:5将猪皮与质量分数10%氢氧化钠溶液混合,浸泡2~3天后过滤,将滤渣重复浸泡步骤2~4次后用蒸馏水冲洗至浸泡物为中性,将浸泡物按固液比1:5与正丁醇混合,并浸泡脱脂24~30h,脱脂后过滤得滤渣,将滤渣冷冻干燥后粉碎,过150~170目筛,得粉末,备用;称取500~700g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡1~2h,浸泡后取出,并用去离子水清洗2~4次,将清洗后的贝壳放入烘箱中,在60~80℃条件下干燥6~8h,干燥后放入球磨机中球磨2~3h,过180~200目筛,得贝壳粉末;称取40~60g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散15~20min,得悬浮液,随后称取80~100g水性聚氨酯树脂,向水性聚氨酯树脂中加入100~150g悬浮液,机械搅拌混合30~40min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为20~22mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌5~6h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;将上述通入气体后的三口烧瓶放入冰水浴锅中,在0~5℃条件下,向烧瓶中分别加入5~10g纳米二氧化钛、10~15g备用的粉末、12~15g硫酸锌、5~10g滑石粉、3~5g羧甲基纤维素、0.3~0.8gOTD消泡剂、1~3g固化剂303,机械搅拌混合25~30min,搅拌后将烧瓶中的产物倒出,并用150~170目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
实例1
称取150g新鲜猪皮,按固液比1:5将猪皮与质量分数10%氢氧化钠溶液混合,浸泡2天后过滤,将滤渣重复浸泡步骤2次后用蒸馏水冲洗至浸泡物为中性,将浸泡物按固液比1:5与正丁醇混合,并浸泡脱脂24h,脱脂后过滤得滤渣,将滤渣冷冻干燥后粉碎,过150目筛,得粉末,备用;称取500g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡1h,浸泡后取出,并用去离子水清洗2次,将清洗后的贝壳放入烘箱中,在60℃条件下干燥6h,干燥后放入球磨机中球磨2h,过180目筛,得贝壳粉末;称取40g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散15min,得悬浮液,随后称取80g水性聚氨酯树脂,向水性聚氨酯树脂中加入100g悬浮液,机械搅拌混合30min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为20mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌5h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;将上述通入气体后的三口烧瓶放入冰水浴锅中,在0℃条件下,向烧瓶中分别加入5g纳米二氧化钛、10g备用的粉末、12g硫酸锌、5g滑石粉、3g羧甲基纤维素、0.3gOTD消泡剂、1g固化剂303,机械搅拌混合25min,搅拌后将烧瓶中的产物倒出,并用150目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
实例2
称取175g新鲜猪皮,按固液比1:5将猪皮与质量分数10%氢氧化钠溶液混合,浸泡2.5天后过滤,将滤渣重复浸泡步骤3次后用蒸馏水冲洗至浸泡物为中性,将浸泡物按固液比1:5与正丁醇混合,并浸泡脱脂28h,脱脂后过滤得滤渣,将滤渣冷冻干燥后粉碎,过160目筛,得粉末,备用;称取600g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡2h,浸泡后取出,并用去离子水清洗3次,将清洗后的贝壳放入烘箱中,在70℃条件下干燥7h,干燥后放入球磨机中球磨3h,过190目筛,得贝壳粉末;然后称取40g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散18min,得悬浮液,随后称取90g水性聚氨酯树脂,向水性聚氨酯树脂中加入125g悬浮液,机械搅拌混合35min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为21mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌6h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;将上述通入气体后的三口烧瓶放入冰水浴锅中,在3℃条件下,向烧瓶中分别加入7g纳米二氧化钛、13g备用的粉末、13g硫酸锌、8g滑石粉、4g羧甲基纤维素、0.6gOTD消泡剂、2g固化剂303,机械搅拌混合27min,搅拌后将烧瓶中的产物倒出,并用160目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
选取平板玻璃,分别用无水乙醇、丙酮、去离子水擦拭玻璃表面后,放入烘箱中,在55℃温度下干燥4h,随后将本发明制得防眩光玻璃涂料用辊涂方式均匀涂覆于玻璃表面,涂覆量为20g/m2,将涂覆后的玻璃在65℃的烘箱中固化6h,得防眩光玻璃。该防眩光玻璃在可见光下,入射光为45°时,玻璃的粗糙度为73.5nm,光在玻璃界面的反射率为为7.3%;本发明的防眩光玻璃涂料涂布均匀,与基体附着力高,防眩光效果好。
实例3
将上述通入气体后的三口烧瓶放入冰水浴锅中,在5℃条件下,向烧瓶中分别加入10g纳米二氧化钛、15g备用的粉末、15g硫酸锌、10g滑石粉、5g羧甲基纤维素、0.8gOTD消泡剂、3g固化剂303,机械搅拌混合30min,搅拌后将烧瓶中的产物倒出,并用170目滤布进行过滤,得滤液,在10℃温度下保存,即为防眩光玻璃涂料。称取700g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡2h,浸泡后取出,并用去离子水清洗4次,将清洗后的贝壳放入烘箱中,在80℃条件下干燥8h,干燥后放入球磨机中球磨3h,过200目筛,得贝壳粉末;然后称取50g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散20min,得悬浮液,随后称取100g水性聚氨酯树脂,向水性聚氨酯树脂中加入150g悬浮液,机械搅拌混合40min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为22mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌6h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;将上述通入气体后的三口烧瓶放入冰水浴锅中,在5℃条件下,向烧瓶中分别加入10g纳米二氧化钛、15g备用的粉末、15g硫酸锌、10g滑石粉、5g羧甲基纤维素、0.8gOTD消泡剂、3g固化剂303,机械搅拌混合30min,搅拌后将烧瓶中的产物倒出,并用170目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
选取平板玻璃,分别用无水乙醇、丙酮、去离子水擦拭玻璃表面后,放入烘箱中,在60℃温度下干燥4h,随后将本发明制得防眩光玻璃涂料用辊涂方式均匀涂覆于玻璃表面,涂覆量为25g/m2,将涂覆后的玻璃在70℃的烘箱中固化7h,得防眩光玻璃。该防眩光玻璃在可见光下,入射光为90°时,玻璃的粗糙度为86.0nm,光在玻璃界面的反射率为为9.6%;本发明的防眩光玻璃涂料涂布均匀,与基体附着力高,防眩光效果好。
Claims (1)
1.一种灯具用防眩光玻璃涂料的制备方法,其特征在于具体制备步骤为:
(1)称取150~200g新鲜猪皮,按固液比1:5将猪皮与质量分数10%氢氧化钠溶液混合,浸泡2~3天后过滤,将滤渣重复浸泡步骤2~4次后用蒸馏水冲洗至浸泡物为中性,将浸泡物按固液比1:5与正丁醇混合,并浸泡脱脂24~30h,脱脂后过滤得滤渣,将滤渣冷冻干燥后粉碎,过150~170目筛,得粉末,备用;
(2)称取500~700g贝壳,将其表面清洗干净后放入质量分数1%盐酸中浸泡1~2h,浸泡后取出,并用去离子水清洗2~4次,将清洗后的贝壳放入烘箱中,在60~80℃条件下干燥6~8h,干燥后放入球磨机中球磨2~3h,过180~200目筛,得贝壳粉末;
(3)称取40~60g上述贝壳粉末,按固液比1:6与去离子水混合,超声分散15~20min,得悬浮液,随后称取80~100g水性聚氨酯树脂,向水性聚氨酯树脂中加入100~150g悬浮液,机械搅拌混合30~40min,得混合物,将混合物装入三口烧瓶中,控制气体通入流速为20~22mL/min,向混合物中通入二氧化碳气体,并同时进行搅拌,搅拌5~6h后,停止通入气体;所述的水性聚氨酯树脂为聚氨酯-聚丙烯酸共集物乳液;
(4)将上述通入气体后的三口烧瓶放入冰水浴锅中,在0~5℃条件下,向烧瓶中分别加入5~10g纳米二氧化钛、10~15g步骤(1)备用的粉末、12~15g硫酸锌、5~10g滑石粉、3~5g羧甲基纤维素、0.3~0.8gOTD消泡剂、1~3g固化剂303,机械搅拌混合25~30min,搅拌后将烧瓶中的产物倒出,并用150~170目滤布进行过滤,得滤液,在5~10℃温度下保存,即为防眩光玻璃涂料。
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