CN115074028A - 一种金属3d打印镜架漆膜粘接力增强促进剂、制备方法及后处理工艺 - Google Patents
一种金属3d打印镜架漆膜粘接力增强促进剂、制备方法及后处理工艺 Download PDFInfo
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Abstract
本发明公开了一种金属3D打印镜架漆膜粘接力增强促进剂、制备方法及后处理工艺,所述增强促进剂按重量百分比计,由如下组分制备而成:硅烷偶联剂5‑15%、添加剂:0‑1%、纳米增强剂:0.2‑0.7%、助溶剂:8%‑15%、pH调节剂,其余为水。采用本发明配制的促进剂,再配套的涂覆工艺配合下,能极大的提高漆膜与金属3D打印镜架的粘结强度,且能提高漆膜的汗液腐蚀性,提高金属镜架的使用寿命,配制过程相对简单,处理过程环保无污染,能广泛应用于金属3D打印镜架喷漆前的表面处理中。
Description
技术领域
本发明涉及金属3D打印镜架喷漆前表面处理技术领域,尤其涉及一种金属3D打印镜架漆膜粘接力增强促进剂、制备方法及后处理工艺。
背景技术
眼镜架是整副眼镜的骨架,不仅起到固定镜片的作用,还在佩戴时起到装饰、美观的作用,材质主要有金属、树脂或天然材料等,而金属镜架是由金属材料成型而成,成型方式一般有冲压、拉丝及近些年兴起的3D打印等,金属镜架在成型后需要经过后处理,而上漆是整个后处理流程的最后一步,不同色彩的漆膜赋予了镜架不同的绚丽外观,是金属镜架的衣服,上漆的方式有喷涂、浸漆、电镀等,其中喷涂工艺较为简单,成本也低,但喷涂的镜架漆膜在后期使用过程中容易在汗液长期腐蚀及使用过程中磨损导致脱落,严重影响美观,同时裸露的金属基体会导致皮肤过敏,因此一般脱漆比较严重的镜架会做废弃处理。
3D打印镜架现阶段由于工艺特点,成本较高,因此如果因为后期脱漆导致废弃会造成巨大的浪费,因此如何提高3D打印镜架表面漆膜的粘结力已成为一个亟待解决的问题。传统提高漆膜粘接力的方式主要通过打磨或磷化等方法提升粗糙的表面,使得油漆与基材的接触面积增大,但这种方式对于提高漆膜粘接力的程度有限,不能有效防止汗液的腐蚀,且磷化处理技术主要的原材料为含重金属的含磷、氮类化合物,在工艺处理过程中会产生含有大量重金属及磷、氮的废水和废渣,如果不进行环保处理就会危害环境。
发明内容
针对上述存在的问题,本发明旨在提供一种金属3D打印镜架漆膜粘接力增强促进剂、制备方法及后处理工艺,其粘结强度提高幅度大,且能提高漆膜的汗液腐蚀性,提高金属镜架的使用寿命,材料来源广泛,配制简单,能广泛应用于金属3D打印镜架喷漆前的表面处理中。
为了实现上述目的,本发明所采用的技术方案如下:一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述增强促进剂按重量百分比计,由如下组分制备而成:硅烷偶联剂5-15%、添加剂:0-1%、纳米增强剂:0.2-0.7%、助溶剂:8%-15%、pH调节剂:0.3-0.7%,其余为水。
优选的,所述硅烷偶联剂选自γ-氨丙基三乙氧基硅烷(KH-550)、γ-缩水甘油醚基三甲氧基硅烷(KH-560)、(3,3,3-三氟丙基)三甲氧基硅烷(KBM-7103)或γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)。
优选的,所述添加剂选自氟锆酸或铬酸钾。
优选的,所述纳米增强剂选自纳米二氧化硅、纳米碳酸钙或纳米氢氧化铝。
优选的,所述助溶剂选自甲醇、无水乙醇或乙二醇。
优选的,所述pH调节剂选自冰乙酸、硝酸、氢氧化钠或氢氧化钾。
一种金属3D打印镜架漆膜粘接力增强促进剂的制备方法,其特征在于,包括以下步骤:
(1)称取100g水,放入25℃恒温搅拌器中低速搅拌预热;
(2)依次称取硅烷偶联剂5-15g、助剂8-15g、纳米增强材料0.2-0.7g,并依次间隔5min加入步骤(1)水中;
(3)在(2)中加入0-2.2g45%氟锆酸溶液;
(4)用pH调节剂调制溶液的酸碱度为4-10;
(5)将混合料液在25℃下水解2-12h即得到增强促进剂材料。
一种金属3D打印镜架漆膜粘接力增强促进剂的后处理工艺,其特征在于,包括以下步骤:
(1)将金属3D打印镜架处理至需求的粗糙度,并将镜架清洗干净、烘干;
(2)将镜架完全浸入配制的促进材料中3min,取出沥干;
(3)将镜架放入加热设备中,150-180℃保温1h;
(4)待镜架冷却后即可进行喷漆处理。
本发明的有益效果是:本发明采用硅烷偶联剂为主要材料,配方组成不含重金属及磷氮等有害物符合可持续发展要求,粘结强度提高幅度大,且能提高漆膜的汗液腐蚀性,提高金属镜架的使用寿命,材料来源广泛,配制简单,可根据不同场合对配方进行调整,能满足3D打印金属镜架对于提高漆膜结合力的技术需求。
具体实施方式
为了使本领域的普通技术人员能更好的理解本发明的技术方案,下面结合实施例对本发明的技术方案做进一步的描述。
一种金属3D打印镜架漆膜粘接力增强促进剂,所述增强促进剂按重量百分比计,由如下组分制备而成:硅烷偶联剂5-15%、添加剂:0-1%、纳米增强剂:0.2-0.7%、助溶剂:8%-15%、pH调节剂:0.3-0.7%,其余为水。
所述硅烷偶联剂选自γ-氨丙基三乙氧基硅烷(KH-550)、γ-缩水甘油醚基三甲氧基硅烷(KH-560)、(3,3,3-三氟丙基)三甲氧基硅烷(KBM-7103)或γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570),优选为γ-氨丙基三乙氧基硅烷或γ-缩水甘油醚基三甲氧基硅烷。
所述添加剂选自氟锆酸或铬酸钾,优选为氟锆酸。
所述纳米增强剂选自纳米二氧化硅、纳米碳酸钙或纳米氢氧化铝,优选为纳米二氧化硅。
所述助溶剂选自甲醇、无水乙醇或乙二醇,优选为无水乙醇或甲醇。
所述pH调节剂选自冰乙酸、硝酸、氢氧化钠或氢氧化钾,优选为冰乙酸或氢氧化钠。
实施例1
金属3D打印镜架漆膜粘接力增强促进剂包括如下组分:γ-氨丙基三乙氧基硅烷5g、纳米二氧化硅0.2g、无水乙醇8g,pH调节剂,其余为水,制备方法包括:
(1)称取100g水,放入25℃恒温搅拌器中低速搅拌预热,在该温度下水解效果比较好,温度过高,易产生聚合,过低会导致水解时间过长;
(2)依次称取KH-5505g、无水乙醇8g、纳米二氧化硅0.2g,并依次间隔5min加入(1)水中,分别添加可有效避免同时添加相互之间的影响,更容易得到分散均匀的溶液,5min能达到较好的预期效果;
(3)用氢氧化钠将溶液调至酸碱度为10,在该酸碱度下可以促进硅烷偶联剂的水解,抑制硅烷偶联剂的聚合;
(4)将混合料液在25℃下水解2h即得到增强促进剂。
金属3D打印镜架漆膜粘接力增强促进剂的后处理工艺,包括以下步骤:
(1)将金属3D打印镜架处理至需求的粗糙度(表面粗糙度在3μm左右即可),并将镜架清洗干净并烘干;
(2)将镜架完全浸入配制的所述增强促进剂中3min,取出沥干,浸泡时间过短无法形成连续致密的过渡膜、浸泡时间过长则导致膜层过厚,过渡膜与漆层粘接效果较差;
(3)将镜架放入加热设备中,160℃保温1h,温度过低,会存在反应不完全,影响过渡膜强度,温度过高,则会造成膜层易被损坏;
(4)待镜架冷却后即可进行喷漆处理。
实施例2
本实施例中金属3D打印镜架漆膜粘接力增强促进剂包括如下组分:KH-56010g、氟锆酸0.2g、纳米二氧化硅0.5g、甲醇12g,其余为水,制备方法包括:
(1)称取100g水,放入25℃恒温搅拌器中低速搅拌预热;
(2)依次称取KH-56010g、甲醇12g、纳米二氧化硅0.5g,并依次间隔5min加入(1)水中;
(3)在(2)中加入1.1g45%的氟锆酸溶液;
(4)用冰乙酸将溶液调至酸碱度为4;
(5)将混合料液在25℃下水解8h即得到增强促进剂。
金属3D打印镜架漆膜粘接力增强促进剂的后处理工艺,包括以下步骤:
(1)将金属3D打印镜架处理至需求的粗糙度(表面粗糙度在3μm左右即可),并将镜架清洗干净并烘干;
(2)将镜架完全浸入配制的所述增强促进剂中3min,取出沥干;
(3)将镜架放入加热设备中,150℃保温1h;
(4)待镜架冷却后即可进行喷漆处理。
实施例3
本实施例中金属3D打印镜架漆膜粘接力增强促进剂包括如下组分:KH-56015g、氟锆酸0.2g、纳米二氧化硅0.7g、甲醇15g,其余为水,制备方法包括:
(1)称取100g水,放入25℃恒温搅拌器中低速搅拌预热;
(2)配制浓度为45%的氟锆酸水溶液待用;
(3)依次称取γ-氨丙基三乙氧基硅烷15g、甲醇15g、纳米二氧化硅0.7g,并依次间隔5min加入(1)水中;
(4)在(3)中加入2.2g 45%氟锆酸溶液;
(5)用冰乙酸将溶液调至酸碱度为4.5;
(6)将混合料液在25℃下水解2h即得到增强促进剂。
金属3D打印镜架漆膜粘接力增强促进剂的后处理工艺,包括以下步骤:
(1)将金属3D打印镜架处理至需求的粗糙度(表面粗糙度在3μm左右即可),并将镜架清洗干净并烘干;
(2)将镜架完全浸入配制的所述增强促进剂中3min,取出沥干;
(3)将镜架放入加热设备中,180℃保温1h;
(4)待镜架冷却后即可进行喷漆处理。
本发明采用硅烷偶联剂为主要材料,配方组成不含重金属及磷氮等有害物符合可持续发展要求,粘结强度提高幅度大;由于该促进剂与基体结合紧密,能防止汗液渗入基体,解决导致漆膜脱落的问题,且能提高漆膜的汗液腐蚀性,提高金属镜架的使用寿命,材料来源广泛,配制简单,可根据不同场合对配方进行调整,能满足3D打印金属镜架对于提高漆膜结合力的技术需求。
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解,本发明不受上述实施例的限制,上述实施例和说明书中描述的只是说明本发明的原理,在不脱离本发明精神和范围的前提下,本发明还会有各种变化和改进,这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。
Claims (8)
1.一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述增强促进剂按重量百分比计,由如下组分制备而成:硅烷偶联剂5-15%、添加剂:0-1%、纳米增强剂:0.2-0.7%、助溶剂:8%-15%、pH调节剂:0.3-0.7%,其余为水。
2.根据权利要求1所述的一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述硅烷偶联剂选自γ-氨丙基三乙氧基硅烷(KH-550)、γ-缩水甘油醚基三甲氧基硅烷(KH-560)、(3,3,3-三氟丙基)三甲氧基硅烷(KBM-7103)或γ-甲基丙烯酰氧基丙基三甲氧基硅烷(KH-570)。
3.根据权利要求2所述的一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述添加剂选自氟锆酸或铬酸钾。
4.根据权利要求3所述的一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述纳米增强剂选自纳米二氧化硅、纳米碳酸钙或纳米氢氧化铝。
5.根据权利要求4所述的一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述助溶剂选自甲醇、无水乙醇或乙二醇。
6.根据权利要求5所述的一种金属3D打印镜架漆膜粘接力增强促进剂,其特征在于:所述pH调节剂选自冰乙酸、硝酸、氢氧化钠或氢氧化钾。
7.根据权利要求6所述的一种金属3D打印镜架漆膜粘接力增强促进剂的制备方法,其特征在于,包括以下步骤:
(1)称取100g水,放入25℃恒温搅拌器中低速搅拌预热;
(2)依次称取硅烷偶联剂5-15g、助剂8-15g、纳米增强材料0.2-0.7g,并依次间隔5min加入步骤(1)水中;
(3)在(2)中加入0-2.2g45%氟锆酸溶液;
(4)用pH调节剂调制溶液的酸碱度为4-10;
(5)将混合料液在25℃下水解2-12h即得到增强促进剂材料。
8.根据权利要求7所述的一种金属3D打印镜架漆膜粘接力增强促进剂的后处理工艺,其特征在于,包括以下步骤:
(1)将金属3D打印镜架处理至需求的粗糙度,并将镜架清洗干净、烘干;
(2)将镜架完全浸入配制的促进材料中3min,取出沥干;
(3)将镜架放入加热设备中,150-180℃保温1h;
(4)待镜架冷却后即可进行喷漆处理。
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