CN107779144A - 改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用 - Google Patents

改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用 Download PDF

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CN107779144A
CN107779144A CN201711093248.7A CN201711093248A CN107779144A CN 107779144 A CN107779144 A CN 107779144A CN 201711093248 A CN201711093248 A CN 201711093248A CN 107779144 A CN107779144 A CN 107779144A
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邹黎清
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Aozhong New Material Technology Shaoguan Co ltd
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SUZHOU KEMAO ELECTRONIC MATERIAL TECHNOLOGY Co Ltd
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Abstract

本发明公开了改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用，该制备工艺通过将薄膜材料作为基材进行隔离剂和电晕处理后，将以丙烯酸乙酯、丙烯酸丁酯、甲基丙烯酸甲酯为主要成分的胶黏剂涂布在处理后基材上，通过一系列工艺步骤，如干燥固化、复合隔离、卷取、裁切、包装等制成成品压敏胶，使得制备而成的改性非水分散型聚丙烯酸酯压敏胶,具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性。同时还公开了该制备工艺所制得的改性非水分散型聚丙烯酸酯压敏胶在卫生巾、尿布、双面胶带、服装等轻工制造业上的应用。

Description

改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用
技术领域
本发明涉及材料领域，特别涉及到改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用。
背景技术
压敏胶（PSA） 压敏胶粘剂的简称，是一类具有对压力有敏感性的胶粘剂。所有的胶黏剂的粘接施工都要求在一定的压力条件下完成，但并不是所有的胶黏剂都可以归类为压敏胶。压敏胶特指那种在粘接过程中对压力敏感、不必加热、不需要溶剂、只需轻微一按就能够实现粘接的胶黏剂。其特点是粘之不易，揭之不难，剥而不损，在较长的时间内胶层不会干固，所以压敏胶也成为不干胶。
聚丙烯酸酯压敏胶具有不饱和双键的单体在催化剂作用下进行自由基聚合反应制得的丙烯酸酯树脂。聚丙烯酸具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性酯压敏胶，制成的各类压敏胶带，可方便对薄膜的粘贴。聚丙烯酸酯压敏胶具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性，制成的各类压敏胶带，可方便对薄膜的粘贴。由于制备聚丙烯啊酸酯压敏胶的单体聚合物属热塑性树脂，内聚力不够理想，为了进一步提高内聚力和胶接强度，可加入能与改性单体发生化学反应的交联剂，使它们在加热情况下产生交联结构，从而大大改善胶液的性能。然而，目前多数压敏胶尚存在着对极端温度耐受性差、成分易损失、环保性能欠佳等问题，在一定程度上制约了上述压敏胶在轻工业上更为广泛的应用。
发明内容
为解决上述技术问题，本发明提供改性非水分散型聚丙烯酸酯压敏胶的制备工艺及其应用，通过采用特定原料进行组合，配合相应的生产工艺，得到的改性非水分散型聚丙烯酸酯压敏胶，具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性，能够满足行业的要求，具有较好的应用前景。
本发明的目的可以通过以下技术方案实现：
改性非水分散型聚丙烯酸酯压敏胶的制备工艺，包括以下步骤：
（1）将薄膜基材放于隔离剂中处理30-45分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理；
（3）将丙烯酸乙酯15-20份、丙烯酸丁酯10-12份、甲基丙烯酸甲酯7-10份、N-羟甲基丙烯酰胺5-9份、聚丙烯酸异辛酯1-5份、丙烯腈2-5份、双甲基丙烯酸聚乙二醇酯1-4份、4-乙烯吡啶2-6份加入翅形溶解釜中搅拌，加热至180-210℃，搅拌转速80-120转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 1-4份、聚十二醇环氧乙烷1-3份、过硫酸钾2-5份、焦亚硫酸钠1-3份、异丙醇4-8份、助剂1-2份和步骤（3）的混合液注入聚合反应釜，反应温度260-280℃，反应时间30-60分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为80-100m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为60-70℃，干燥时间为20-30分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
优选地，所述步骤（1）中隔离剂选自多异氰酸酯、双甲基丙烯酸聚乙二醇酯、六氟丁二烯、聚二甲基硅氧烷中的一种或几种。
优选地，所述步骤（2）中，电晕处理需要使用专业的电晕发射器设备，电晕条件：200Kv,10Hz。
优选地，所述步骤（4）中助剂选自羟甲基纤维素、聚乙烯醇、磺基琥珀酸酯钠盐、十六烷基磺酸钠中的一种或几种。
优选地，所述步骤（8）中的复合处理，湿式复合机加压辊压力为5-20N/cm2。
本发明的目的还在于提供所述制备工艺所制得的改性非水分散型聚丙烯酸酯压敏胶在卫生巾、尿布、双面胶带、服装等轻工制造业上的应用
本发明与现有技术相比，其有益效果为：
（1）本发明的改性非水分散型聚丙烯酸酯压敏胶的制备工艺，通过将薄膜材料作为基材进行隔离剂和电晕处理后，将以丙烯酸乙酯、丙烯酸丁酯、甲基丙烯酸甲酯为主要成分的胶黏剂涂布在处理后基材上，通过一系列工艺步骤，如干燥固化、复合隔离、卷取、裁切、包装等制成成品压敏胶，使得制备而成的改性非水分散型聚丙烯酸酯压敏胶, 具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性。
（2）本发明的改性非水分散型聚丙烯酸酯压敏胶的原料廉价、工艺简单，适于大规工业化运用，实用性强。
具体实施方式
下面结合具体实施例对发明的技术方案进行详细说明。
实施例1
（1）将薄膜基材放于多异氰酸酯中处理30分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯15份、丙烯酸丁酯10份、甲基丙烯酸甲酯7份、N-羟甲基丙烯酰胺5份、聚丙烯酸异辛酯1份、丙烯腈2份、双甲基丙烯酸聚乙二醇1份、4-乙烯吡啶2份加入翅形溶解釜中搅拌，加热至180℃，搅拌转速80转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 1份、聚十二醇环氧乙烷1份、过硫酸钾2份、焦亚硫酸钠1份、异丙醇4份、羟甲基纤维素1份和步骤（3）的混合液注入聚合反应釜，反应温度260℃，反应时间30分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为80m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为60℃，干燥时间为20分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为5N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
实施例2
（1）将薄膜基材放于双甲基丙烯酸聚乙二醇酯中处理35分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯17份、丙烯酸丁酯11份、甲基丙烯酸甲酯8份、N-羟甲基丙烯酰胺6份、聚丙烯酸异辛酯2份、丙烯腈3份、双甲基丙烯酸聚乙二醇酯2份、4-乙烯吡啶3份加入翅形溶解釜中搅拌，加热至190℃，搅拌转速100转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 2份、聚十二醇环氧乙烷2份、过硫酸钾3份、焦亚硫酸钠2份、异丙醇5份、聚乙烯醇1份和步骤（3）的混合液注入聚合反应釜，反应温度265℃，反应时间40分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为90m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为63℃，干燥时间为23分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为10N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
实施例3
（1）将薄膜基材放于六氟丁二烯中处理40分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯19份、丙烯酸丁酯11份、甲基丙烯酸甲酯9份、N-羟甲基丙烯酰胺8份、聚丙烯酸异辛酯4份、丙烯腈4份、双甲基丙烯酸聚乙二醇酯3份、4-乙烯吡啶5份加入翅形溶解釜中搅拌，加热至200℃，搅拌转速110转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 3份、聚十二醇环氧乙烷2份、过硫酸钾4份、焦亚硫酸钠2份、异丙醇7份、磺基琥珀酸酯钠盐2份和步骤（3）的混合液注入聚合反应釜，反应温度275℃，反应时间50分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为95m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为66℃，干燥时间为26分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为15N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
实施例4
（1）将薄膜基材放于聚二甲基硅氧烷中处理45分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯20份、丙烯酸丁酯12份、甲基丙烯酸甲酯10份、N-羟甲基丙烯酰胺9份、聚丙烯酸异辛酯5份、丙烯腈5份、双甲基丙烯酸聚乙二醇酯4份、4-乙烯吡啶6份加入翅形溶解釜中搅拌，加热至210℃，搅拌转速120转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 4份、聚十二醇环氧乙烷3份、过硫酸钾5份、焦亚硫酸钠3份、异丙醇8份、十六烷基磺酸钠2份和步骤（3）的混合液注入聚合反应釜，反应温度280℃，反应时间60分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为100m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为70℃，干燥时间为30分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为20N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
对比例1
（1）将薄膜基材放于多异氰酸酯中处理30分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯15份、甲基丙烯酸甲酯7份、N-羟甲基丙烯酰胺5份、聚丙烯酸异辛酯1份、双甲基丙烯酸聚乙二醇1份、4-乙烯吡啶2份加入翅形溶解釜中搅拌，加热至180℃，搅拌转速80转/分钟，搅拌时间50分钟，得到混合液；
（4）将聚十二醇环氧乙烷1份、过硫酸钾2份、焦亚硫酸钠1份、异丙醇4份、羟甲基纤维素1份和步骤（3）的混合液注入聚合反应釜，反应温度260℃，反应时间30分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为80m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为60℃，干燥时间为20分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为5N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
对比例2
（1）将薄膜基材放于聚二甲基硅氧烷中处理45分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理，电晕发射器电晕条件：200Kv,10Hz；
（3）将丙烯酸乙酯20份、丙烯酸丁酯12份、N-羟甲基丙烯酰胺9份、聚丙烯酸异辛酯5份、丙烯腈5份、双甲基丙烯酸聚乙二醇酯4份、4-乙烯吡啶6份加入翅形溶解釜中搅拌，加热至210℃，搅拌转速120转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 4份、聚十二醇环氧乙烷3份、过硫酸钾5份、十六烷基磺酸钠2份和步骤（3）的混合液注入聚合反应釜，反应温度280℃，反应时间60分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为100m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为70℃，干燥时间为30分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸，湿式复合机加压辊压力为20N/cm2；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
制得的改性非水分散型聚丙烯酸酯压敏胶的性能测试结果如表1所示。
将实施例1-4和对比例1-2的制得的改性非水分散型聚丙烯酸酯压敏胶进行180°剥离性能、持黏性、拉伸强度这几项性能测试。
表1
180°剥离性能（常态，N/cm） 180°剥离性能（湿热老化后，N/cm） 持黏性（mm/h） 拉伸强度（N/cm）
实施例1 4.15 3.12 0.11 47
实施例2 3.96 3.08 0.15 45
实施例3 3.97 3.17 0.17 51
实施例4 4.03 3.14 0.16 49
对比例1 2.45 2.26 0.25 32
对比例2 2.93 2.37 0.37 34
本发明的改性非水分散型聚丙烯酸酯压敏胶的制备工艺通过将薄膜材料作为基材进行隔离剂和电晕处理后，将以丙烯酸乙酯、丙烯酸丁酯、甲基丙烯酸甲酯为主要成分的胶黏剂涂布在处理后基材上，通过一系列工艺步骤，如干燥固化、复合隔离、卷取、裁切、包装等制成成品压敏胶，使得制备而成的改性非水分散型聚丙烯酸酯压敏胶,具有较好的耐低温、耐高温，可凝挥发物和质量损失率低，并且无有害气体逸出的特性。本发明的改性非水分散型聚丙烯酸酯压敏胶的原料廉价、工艺简单，适于大规工业化运用，实用性强。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (6)

1.改性非水分散型聚丙烯酸酯压敏胶的制备工艺，其特征在于，包括以下步骤：
（1）将薄膜基材放于隔离剂中处理30-45分钟，室温晾干；
（2）将步骤（1）晾干的基材进行电晕处理；
（3）将丙烯酸乙酯15-20份、丙烯酸丁酯10-12份、甲基丙烯酸甲酯7-10份、N-羟甲基丙烯酰胺5-9份、聚丙烯酸异辛酯1-5份、丙烯腈2-5份、双甲基丙烯酸聚乙二醇酯1-4份、4-乙烯吡啶2-6份加入翅形溶解釜中搅拌，加热至180-210℃，搅拌转速80-120转/分钟，搅拌时间50分钟，得到混合液；
（4）将吐温-20 1-4份、聚十二醇环氧乙烷1-3份、过硫酸钾2-5份、焦亚硫酸钠1-3份、异丙醇4-8份、助剂1-2份和步骤（3）的混合液注入聚合反应釜，反应温度260-280℃，反应时间30-60分钟，得胶黏剂；
（5）将步骤（4）的胶黏剂注入涂布机中，均匀涂布至步骤（2）电晕处理的基材上面，涂布的车速为80-100m/min；
（6）将上述涂布好的基材进行干燥固化处理，使用热风垂直碰出式干燥机，干燥温度为60-70℃，干燥时间为20-30分钟；
（7）将氯乙酰胺和聚磷酸钠按重量比1：4混合，搅拌均匀，涂布在隔离纸上，在60℃下干燥30分钟，自然冷却至室温；
（8）在步骤（6）干燥固化的基材及胶黏剂上复合步骤（7）处理的隔离纸；
（9）将复合上隔离纸的压敏胶卷取、裁切成产品规格、包装成产品。
2.根据权利要求1所述的改性非水分散型聚丙烯酸酯压敏胶的制备工艺，其特征在于，所述步骤（1）中隔离剂选自多异氰酸酯、双甲基丙烯酸聚乙二醇酯、六氟丁二烯、聚二甲基硅氧烷中的一种或几种。
3.根据权利要求1所述的改性非水分散型聚丙烯酸酯压敏胶的制备工艺，其特征在于，所述步骤（2）中，电晕处理需要使用专业的电晕发射器设备，电晕条件：200Kv,10Hz。
4.根据权利要求1所述的改性非水分散型聚丙烯酸酯压敏胶的制备工艺，其特征在于，所述步骤（4）中助剂选自羟甲基纤维素、聚乙烯醇、磺基琥珀酸酯钠盐、十六烷基磺酸钠中的一种或几种。
5.根据权利要求1所述的改性非水分散型聚丙烯酸酯压敏胶的制备工艺，其特征在于，所述步骤（8）中的复合处理，湿式复合机加压辊压力为5-20N/cm2。
6.根据权利要求1-5任一项所述制备工艺所制得的改性非水分散型聚丙烯酸酯压敏胶在卫生巾、尿布、双面胶带、服装等轻工制造业上的应用。
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