CN109986862A - 一种低折光装饰板的制备方法 - Google Patents

一种低折光装饰板的制备方法 Download PDF

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CN109986862A
CN109986862A CN201810002055.4A CN201810002055A CN109986862A CN 109986862 A CN109986862 A CN 109986862A CN 201810002055 A CN201810002055 A CN 201810002055A CN 109986862 A CN109986862 A CN 109986862A
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李勇
高振忠
侯贤锋
李锰
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Guangzhou Instrument Medical Furniture Polytron Technologies Inc
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Abstract

本发明提供了一种低折光装饰板的制备方法,通过对已有装饰板的表面依次涂覆基底层和氟化镁层,基底层起润滑装饰板表面及粘附氟化镁层的过渡作用,氟化镁层可满足对低折光的要求,制得的低折光装饰板折光指数可以达到1.38,大大降低了装饰板对光的折射,减少了因夜晚不合理灯光造成家具反光给人体造成的不适感,同时也简化了制作工艺,使对装饰板的镀膜技术可以达到工业化生产的要求。

Description

一种低折光装饰板的制备方法
技术领域
本发明涉及装饰板表面成膜领域,特别涉及一种低折光装饰板的制备方法。
背景技术
随着我国经济的发展,生活用光中光污染问题日益凸显,并潜伏在人们生活中影响人体的健康。光污染是指那些对视觉、对人体有害的光,光污染一是指“白色污染”,如商店和建筑物用大块镜面或铝合金装饰的外墙、玻璃幕墙等形成的光污染;二是指“人工白昼”现象,像酒店、商场和娱乐场所的广告牌、霓虹灯等强光刺向天空形成的光污染、由镜面建筑反光所导致的行人和司机的眩晕感以及因为夜晚不合理灯光给人体造成的不适感。近年来,国家也越来越重视此现象并相继出台了许多法律及措施进行治理,意在有效降低或消除光污染对人们生活的不利影响。而对于家具行业,特别是三聚氰胺浸渍表面的装饰板,也对其检测多了一项指标:折光率,即反应装饰板在灯光照射下吸收并反射光线的强弱能力;而针对现有装饰板的改性的研究多集中于抗菌、防霉、阻燃和抗老化等领域,对装饰板使用过程中的因为光照形成的光影响问题研究较少,如在日常生活中,家具表面因为光线照射对使用者的眼睛造成额外的负担。
本发明针对上述问题,选用氟化镁作为主要物质,结合现有技术,提供了一种低折光装饰板的制备方法。作为应用最早的光学镀膜材料,氟化镁具有较高的抗激光损伤阈值和较低的光学折射率(1.38),膜层机械强度大,稳定性好,在紫外、可见及红外光范围均具有较高的透过率,且其折射率和消光系数都相对较低,被广泛应用于增透膜和。目前,国内外对于氟化镁光学薄膜的制备主要采用物理方法。物理方法制备的光学薄膜具有良好的稳定性和表面性质,但其缺点是膜层应力较高、缺陷较多,使得薄膜的激光损伤阈值偏低。化学镀膜技术的发展特别是溶胶-凝胶技术的应用为解决这些难题提供了新的途径。由溶胶-凝胶技术制备的光学薄膜结构疏松,应力低,有利于提高薄膜的抗激光损伤性能,便于控制薄膜的组成和结构,使得可能产生的各类缺陷(如吸收缺陷、结构缺陷)大幅度减少,从而大大降低了由膜层缺陷诱导的损伤,同时降低镀膜材料对光线的折射率及透过率。
常用的镀膜研究和技术多集中于电子元件、化学仪器等方面,对精度、操作方法及成本要求也无法工业化应用于家具生产特别是装饰板领域。鉴于此,本发明结合溶胶--凝胶法制备氟化镁,提供了一种可以用于工业生产的低折光装饰板的制备方法,可同时满足装饰板对表面的低折光和工业化可生产要求。
发明内容
本发明通过设置基底层,巧妙的将氟化镁与人造板进行了结合,同时也客服了因人造板表面粗糙造成的镀膜不牢固问题。
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为1.0-2.0 mm,氟化镁层厚度为0.5-1.5 mm。
作为改进,其特征在于:所述基底层按照百分比由聚乙烯树脂50-60 %,氧化钛2.0-5.0 %,填料10-20 %,固化剂1-3 %,增塑剂20-30 %。
作为改进,其特征在于:所述氟化镁层由制得的氟化镁溶胶以3.5-4.5 mm/s 的提拉速度制得。
作为改进,采用甲醇镁-氢氟酸法制备氟化镁溶胶,具体步骤如下:
1)取新鲜镁条和无水甲醇,注入过氧化氢,在氮气保护下80 ℃回流反应,制备甲醇镁的甲醇悬浮液;
2)将甲醇镁悬浮液缓慢滴加到搅拌中的氢氟酸无水甲醇溶液中,随后滴加甲酰胺溶液,完毕后继续搅拌3h;
3)超声震荡15-20 min后制得0.15 mol/L的氟化镁溶胶;
4)将制得的氟化镁溶胶密封老化,温度保持在60 ℃,时间为7天。
具体实施例
为更进一步阐释本发明所能达到的预期效果,以下结合较佳实施例进行说明。
实施例1
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为1.0 mm,氟化镁层厚度为0.5 mm。其中所述基底层按照百分比先将聚乙烯树脂55 %,氧化钛2.5 %,填料20 %选用0.6 u硫酸钡,固化剂1.5 %选用二氨基二苯基砜,增塑剂21 %选用邻苯二甲酸二正辛酯。
在基底层固化后,将制得的氟化镁溶胶以3.2 mm/s 的提拉速度涂覆与基底层在40℃下干燥制得。氟化镁层固化后,表面光滑,且未出现滑脱或开裂现象,性能表现优。
实施例2
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、氟化镁层,所述氟化镁层厚度为0.5 mm。其中所述基底层按照百分比先将聚乙烯树脂55 %,氧化钛2.5 %,填料20 %选用0.6 u硫酸钡,固化剂1.5 %选用二氨基二苯基砜,增塑剂21 %选用邻苯二甲酸二正辛酯。
在基底层固化后,将制得的氟化镁溶胶以3.2 mm/s 的提拉速度涂覆与基底层在40℃下干燥制得。因为少了基底层,导致得到的氟化镁层在固化后出现了部分脱落,表面光滑度也有明显下降,性能
表现差。
实施例3
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为0.5 mm,氟化镁层厚度为1.0 mm。其中所述基底层按照百分比先将聚乙烯树脂55 %,氧化钛2.5 %,填料20 %选用0.6 u硫酸钡,固化剂1.5 %选用二氨基二苯基砜,增塑剂21 %选用邻苯二甲酸二正辛酯。
在基底层固化后,将制得的氟化镁溶胶以3.2 mm/s 的提拉速度涂覆与基底层在40℃下干燥制得。在降低基底层厚度的条件下,得到的氟化镁层折射率稳定,但出现了部分开裂,性能表现差。
实施例4
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为1.5mm,氟化镁层厚度为1.0mm。其中所述基底层按照百分比先将聚乙烯树脂60 %,氧化钛3.0 %,填料15%选用1 u碳酸钙,固化剂2.0%选用二氨基二苯基砜,增塑剂30 %选用邻苯二甲酸二正辛酯。
在基底层固化后,将制得的氟化镁溶胶以3.2 mm/s 的提拉速度涂覆与基底层在40℃下干燥制得,性能表现优。
实施例5
一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为2.0mm,氟化镁层厚度为1.5 mm。其中所述基底层按照百分比先将聚乙烯树脂60 %,氧化钛4.5 %,填料15%选用0.6 u硫酸钡,固化剂2.0%选用三甲基六亚甲基二胺,增塑剂30 %选用邻苯二甲酸二正辛酯。
在基底层固化后,将制得的氟化镁溶胶以3.2 mm/s 的提拉速度涂覆与基底层在60℃下干燥制得,但出现了极少量裂痕,性能表现良。
上述是实施例仅为本发明的优选实施方式,不能来限定本发明保护的范围,本领域的技术人员在本发明的基础上所做的任何非实质性的变化及替换均属于本发明所要求保护的范围。

Claims (4)

1.一种低折光装饰板的制备方法,包括人造板基材和装饰纸,其特征在于:自人造板向外依次为浸渍装饰纸、基底层、氟化镁层,所述基底层厚度为1.0-2.0 mm,氟化镁层厚度为0.5-1.5 mm。
2.根据权利要求1所述的低折光装饰板的制备方法,其特征在于:所述基底层按照百分比由聚乙烯树脂50-70%,氧化钛2.0-5.0 %,填料30-40 %,固化剂1-3 %,增塑剂20-30 %。
3.根据权利要求1所述的低折光装饰板的制备方法,其特征在于:所述氟化镁层由溶胶--凝胶法制得的氟化镁溶胶以3.5 -4.5 mm/s 的提拉速度制得。
4.根据权利要求3所述的低折光装饰板的制备方法,其特征在于:涂覆于基底层的溶胶在40-60 ℃的条件下干燥。
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