CN109213376B - 可书写触控膜的制造工艺 - Google Patents
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Abstract
本发明公开了一种可书写触控膜的制造工艺，其UV打印材料通过以下步骤获得：步骤一、将所述重量份的脂肪族聚氨酯三丙烯酸酯、1,6己二醇二丙烯酸酯、乙二醇二缩水甘油醚、蓖麻油多缩水甘油醚和烷基改性有机硅氧烷放入搅拌分散机混合，得到物料1；步骤二、向步骤一所得物料1中加入所述重量份的羟甲苯丁酯、有机热固性聚甲基脲树脂、4‑丙烯酰吗啉、2‑羟基‑2‑甲基‑1‑苯基‑1‑丙酮、磺酰氧基酮和着色颜料，继续混合，得到物料2；步骤三、将步骤二中得到的物料2送至珠磨机中研磨至粒径为300~400nm，得到UV打印材料。本发明可书写触控膜的制造工艺，制得的UV打印层打印精度高、固化硬度高、耐刮擦。
Description
技术领域
本发明涉及一种触控膜，具体涉及一种可书写触控膜的制造工艺。
背景技术
UV光固化技术具有固化速度快、生产效率高、机械物理性能好、污染小、节能等优点，被誉为绿色技术。随着人类对环保的日益重视及科技的发展，UV固化市场发展快速，广泛用于涂料、胶粘剂、油墨、电子封装、玻璃、牙齿修复、光刻成像以及生物医药等领域。尽管UV固化技术获得很多进展，但是在应用中仍存在一些问题，如现有的紫外光固化体系中存在严重的氧阻聚现象、固化硬度低，粘度偏高，稳定性差。
氧阻聚是指在自由基光聚合体系中，由于氧气的存在而消耗自由基，影响聚合反应的现象。当光聚合体系在空气中进行固化时，空气中的氧气会使光固化表面不能完全固化而发粘，严重影响了光固化材料的整体性能，特别是固化后体积收缩大影响附着力，硬度等问题。
发明内容
本发明提供一种可书写触控膜的制造工艺，其UV打印材料不需要太多热能即可固化，有效避免了UV打印材料的氧阻聚现象，打印精度高。
为达到上述目的，本发明采用的技术方案是：一种可书写触控膜的制造工艺，所述可书写触控膜包括透明基材、感应层和书写层，所述感应层设置于书写层和透明基材之间；
所述书写层进一步包括基材和UV打印层，所述感应层与书写层的基材粘接连接；
所述UV打印层通过UV打印材料在紫外光照射下获得，此UV打印材料通过以下步骤获得：
步骤一、将20~40份脂肪族聚氨酯三丙烯酸酯、35~55份1,6己二醇二丙烯酸酯、10~15份乙二醇二缩水甘油醚、10~20份蓖麻油多缩水甘油醚和0.1~0.5份烷基改性有机硅氧烷放入搅拌分散机，在400~600r/min的搅拌速率下混合10~15min，得到物料1；
步骤二、向步骤一所得物料1中加入0.5~1份羟甲苯丁酯、1~5份有机热固性聚甲基脲树脂、0.8~1.2份4-丙烯酰吗啉、5~10份2-羟基-2-甲基-1-苯基-1-丙酮、1~5份磺酰氧基酮和5~10份着色颜料，在500~600r/min的搅拌速率下继续混合10~15min，得到物料2；
步骤三、将步骤二中得到的物料2送至珠磨机中研磨至粒径为300~400nm，得到所述UV打印材料。
上述技术方案中进一步改进的技术方案如下：
1. 上述方案中，所述脂肪族聚氨酯三丙烯酸酯与1,6己二醇二丙烯酸酯的重量份比例为1:1~2.5。
2. 上述方案中，所述UV打印材料的粘度为20~25cp。
3. 上述方案中，所述步骤三采用分段式研磨，第一阶段采用600~800 nm锆珠进行研磨，第二阶段采用300~400 nm锆珠进行研磨。
由于上述技术方案运用，本发明与现有技术相比具有下列优点和效果：
1、本发明可书写触控膜的制造工艺，其UV打印材料体系中加入烷基改性有机硅氧烷、蓖麻油多缩水甘油醚协同作用改性了含有脂肪族聚氨酯三丙烯酸酯、1,6己二醇二丙烯酸酯和乙二醇二缩水甘油醚的UV打印材料，使得各组分均匀分散，相容性好；并配合2-羟基-2-甲基-1-苯基-1-丙酮、磺酰氧基酮，改善了UV打印材料中各组分的交联速率，使得UV打印材料不需要太多热能即可固化，有效避免了UV打印材料的氧阻聚现象，打印精度高，提高了产品良品率。
2、本发明可书写触控膜的制造工艺，其UV打印材料体系中加入羟甲苯丁酯和有机热固性聚甲基脲树脂，提高了该UV打印材料的固化硬度，从而使UV打印材料更耐刮擦；且在不影响体系粘性和固化性能的情况下，进一步改善了含有着色颜料的UV打印材料的表面张力以及对基材的附着力，工艺简单，节约成本。
具体实施方式
下面结合实施例对本发明作进一步描述：
实施例1~4：一种可书写触控膜的制造工艺，所述可书写触控膜包括透明基材、感应层和书写层，所述感应层设置于书写层和透明基材之间，所述书写层进一步包括基材和UV打印层，所述感应层与书写层的基材粘接连接；
所述UV打印层通过UV打印材料在紫外光照射下获得，此UV打印材料由以下重量份组分组成，见表1所示：
表1
| 组分 | 实施例1 | 实施例2 | 实施例3 | 实施例4 |
| 脂肪族聚氨酯三丙烯酸酯 | 25份 | 40份 | 36份 | 38份 |
| 1,6己二醇二丙烯酸酯 | 50份 | 40份 | 45份 | 38份 |
| 乙二醇二缩水甘油醚 | 12份 | 14份 | 11份 | 12份 |
| 4-丙烯酰吗啉 | 0.9份 | 1.2份 | 1.0份 | 0.9份 |
| 烷基改性有机硅氧烷 | 0.2份 | 0.4份 | 0.3份 | 0.4份 |
| 羟甲苯丁酯 | 0.6份 | 0.8份 | 0.7份 | 0.9份 |
| 有机热固性聚甲基脲树脂 | 3份 | 4份 | 2份 | 3份 |
| 磺酰氧基酮 | 2份 | 4份 | 3份 | 2份 |
| 2-羟基-2-甲基-1-苯基-1-丙酮 | 6份 | 8份 | 9份 | 7份 |
| 着色颜料 | 8份 | 6份 | 9份 | 7份 |
| 蓖麻油多缩水甘油醚 | 12份 | 18份 | 15份 | 17份 |
上述UV打印材料的粘度为20~25cp。
所述UV打印材料通过以下步骤获得：
步骤一、将20~40份脂肪族聚氨酯三丙烯酸酯、35~55份1,6己二醇二丙烯酸酯、10~15份乙二醇二缩水甘油醚、10~20份蓖麻油多缩水甘油醚和0.1~0.5份烷基改性有机硅氧烷放入搅拌分散机，在400~600r/min的搅拌速率下混合10~15min，得到物料1；
步骤二、向步骤一所得物料1中加入0.5~1份羟甲苯丁酯、1~5份有机热固性聚甲基脲树脂、0.8~1.2份4-丙烯酰吗啉、5~10份2-羟基-2-甲基-1-苯基-1-丙酮、1~5份磺酰氧基酮和5~10份着色颜料，在500~600r/min的搅拌速率下继续混合10~15min，得到物料2；
步骤三、将步骤二中得到的物料2送至珠磨机中研磨至粒径为300~400nm，得到所述UV打印材料。
上述步骤三采用分段式研磨，第一阶段采用600~800 nm锆珠进行研磨，第二阶段采用300~400 nm锆珠进行研磨。
对比例1~3：一种可书写触控膜的制造工艺，所述可书写触控膜包括透明基材、感应层和书写层，所述感应层设置于书写层和透明基材之间，所述书写层进一步包括基材和UV打印层，所述感应层与书写层的基材粘接连接；
所述UV打印层通过UV打印材料在紫外光照射下获得，此UV打印材料由以下重量份组分组成，见表2所示：
表2
| 组分 | 对比例1 | 对比例2 | 对比例3 |
| 脂肪族聚氨酯三丙烯酸酯 | 32份 | 26份 | 38份 |
| 1,6己二醇二丙烯酸酯 | 41份 | 48份 | 36份 |
| 乙二醇二缩水甘油醚 | 10份 | 13份 | 11份 |
| 4-丙烯酰吗啉 | 0.8份 | 1.0份 | 1.2份 |
| 烷基改性有机硅氧烷 | - | 0.3份 | 0.4份 |
| 羟甲苯丁酯 | 0.5份 | 0.7份 | - |
| 有机热固性聚甲基脲树脂 | 3份 | 2份 | - |
| 磺酰氧基酮 | 3份 | - | 5份 |
| 2-羟基-2-甲基-1-苯基-1-丙酮 | 7份 | - | 9份 |
| 着色颜料 | 8份 | 9份 | 6份 |
| 蓖麻油多缩水甘油醚 | 12份 | 18份 |
本实施例和对比例检测指标，见表3所示：
表3
| 测试项目 | 实施例1 | 实施例2 | 实施例3 | 实施例4 | 对比例1 | 对比例2 | 对比例3 |
| 硬度 | 3H | 3H | 2H | 3H | 2H | 2H | 1H |
| 粘度 | 24 | 23 | 25 | 23 | 29 | 27 | 26 |
| 材料收缩率（%） | 0.95 | 1.02 | 0.98 | 0.93 | 0.90 | 1.10 | 0.89 |
从表3可知，该UV打印材料硬度高，粘度低，收缩率低。本发明可书写触控膜的制造工艺，其UV打印材料体系中加入烷基改性有机硅氧烷、蓖麻油多缩水甘油醚协同作用改性了含有脂肪族聚氨酯三丙烯酸酯、1,6己二醇二丙烯酸酯和乙二醇二缩水甘油醚的UV打印材料，使得各组分均匀分散，相容性好；并配合2-羟基-2-甲基-1-苯基-1-丙酮、磺酰氧基酮，改善了该UV打印材料中各组分的交联速率，使得UV打印材料不需要太多热能即可固化，有效避免了UV打印材料的氧阻聚现象，打印精度高，提高了产品良品率；其次，其UV打印材料体系中加入羟甲苯丁酯和有机热固性聚甲基脲树脂，提高了该UV打印材料的固化硬度，从而使UV打印材料更耐刮擦；且在不影响体系粘性和固化性能的情况下，进一步改善了含有着色颜料的UV打印材料的表面张力以及对基材的附着力，工艺简单，节约成本。
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。
Claims (4)
1.一种可书写触控膜的制造工艺，其特征在于：所述可书写触控膜包括透明基材、感应层和书写层，所述感应层设置于书写层和透明基材之间，所述书写层进一步包括基材和UV打印层，所述感应层与书写层的基材粘接连接；
所述UV打印层通过UV打印材料在紫外光照射下获得，此UV打印材料通过以下步骤获得：
步骤一、将20~40份脂肪族聚氨酯三丙烯酸酯、35~55份1,6己二醇二丙烯酸酯、10~15份乙二醇二缩水甘油醚、10~20份蓖麻油多缩水甘油醚和0.1~0.5份烷基改性有机硅氧烷放入搅拌分散机，在400~600r/min的搅拌速率下混合10~15min，得到物料1；
步骤二、向步骤一所得物料1中加入0.5~1份羟甲苯丁酯、1~5份有机热固性聚甲基脲树脂、0.8~1.2份4-丙烯酰吗啉、5~10份2-羟基-2-甲基-1-苯基-1-丙酮、1~5份磺酰氧基酮和5~10份着色颜料，在500~600r/min的搅拌速率下继续混合10~15min，得到物料2；
步骤三、将步骤二中得到的物料2送至珠磨机中研磨至粒径为300~400nm，得到所述UV打印材料。
2.根据权利要求1所述的可书写触控膜的制造工艺，其特征在于：所述脂肪族聚氨酯三丙烯酸酯与1,6己二醇二丙烯酸酯的重量份比例为1:1~2.5。
3.根据权利要求1所述的可书写触控膜的制造工艺，其特征在于：所述UV打印材料的粘度为20~25cp。
4. 根据权利要求1所述的可书写触控膜的制造工艺，其特征在于：所述步骤三采用分段式研磨，第一阶段采用600~800 nm锆珠进行研磨，第二阶段采用300~400 nm锆珠进行研磨。
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