CN113308201A - 一种渐变色防静电pet膜及其制备方法 - Google Patents
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- 229920002799 BoPET Polymers 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 11
- 238000000576 coating method Methods 0.000 claims abstract description 121
- 239000011248 coating agent Substances 0.000 claims abstract description 120
- 239000010410 layer Substances 0.000 claims abstract description 83
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 65
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims abstract description 41
- 239000000853 adhesive Substances 0.000 claims abstract description 41
- 230000001070 adhesive effect Effects 0.000 claims abstract description 41
- 239000000203 mixture Substances 0.000 claims abstract description 40
- 239000002131 composite material Substances 0.000 claims abstract description 34
- 238000002834 transmittance Methods 0.000 claims abstract description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 59
- 239000002216 antistatic agent Substances 0.000 claims description 34
- 239000002245 particle Substances 0.000 claims description 26
- 239000003795 chemical substances by application Substances 0.000 claims description 20
- 239000011247 coating layer Substances 0.000 claims description 15
- 238000001035 drying Methods 0.000 claims description 15
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 10
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 claims description 8
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical group O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 claims description 8
- KYNSBQPICQTCGU-UHFFFAOYSA-N Benzopyrane Chemical group C1=CC=C2C=CCOC2=C1 KYNSBQPICQTCGU-UHFFFAOYSA-N 0.000 claims description 6
- 239000000654 additive Substances 0.000 claims description 5
- 230000000996 additive effect Effects 0.000 claims description 5
- 150000003973 alkyl amines Chemical class 0.000 claims description 5
- 230000003749 cleanliness Effects 0.000 claims description 5
- 238000003851 corona treatment Methods 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 5
- 239000000428 dust Substances 0.000 claims description 5
- 238000010030 laminating Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 230000002441 reversible effect Effects 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 4
- -1 polyethylene terephthalate Polymers 0.000 claims description 4
- 229920000642 polymer Polymers 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000003522 acrylic cement Substances 0.000 claims 1
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- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
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- 238000005034 decoration Methods 0.000 description 1
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- 238000009826 distribution Methods 0.000 description 1
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- 238000010292 electrical insulation Methods 0.000 description 1
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- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
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Abstract
本发明提供一种渐变色防静电PET膜,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET基材的厚度为50~150um,透光率为90~95%,雾度为3~5%。本发明提出一种渐变色防静电PET膜及其制备方法,具有防静电、高耐候性、无残胶、反复粘贴的特点,智能光控速度和耐疲劳性均能达到最佳水平,有效提高了使用舒适性。
Description
技术领域
本发明涉及PET膜技术领域,具体涉及一种渐变色防静电PET膜及其制备方法。
背景技术
PET膜又名耐高温聚酯薄膜。它具有优异的物理性能、化学性能及尺寸稳定性、透明性、可回收性,可广泛的应用于磁记录、感光材料、电子、电气绝缘、工业用膜、包装装饰、屏幕保护、光学级镜面表面保护等领域。防静电膜是在PE原料中加入进口防静电剂使其表面电阻达到10~10Ω本身摩擦不产生静电,经高温定型后经久耐磨,从而起到良好的抗静电电效果。现有的防静电保护膜大多采用在基膜的外表面覆盖防静电材料实现,在实际使用时易因摩擦、剐蹭等影响使用寿命以及抗静电性能,实用性差。很多用户在户外使用时都会存在一定的问题,当光线太强时,往往由于屏幕的反射而看不清,人的眼睛受到双重的考验,一是来自地面反射光线的刺激,二是手机屏幕反射的光线大大加强了人眼的不适,而且手机吸收大量光能极易温度升高造成手机罢工。现有的PET防静电膜在涂布过程中使用的抗静电剂因其自身所带的颜色而改变膜表面的颜色,降低了膜的透光率,涂布后所得的PET防静电膜表面电阻分布不是特别均匀,有略微的变化,并且膜与膜之间会相互吸附也影响了产品的正常使用。
因此需要一种防静电效果好同时保护眼睛的一种渐变色防静电PET膜及其制备方法。
发明内容
针对现有技术的不足,本发明提出一种渐变色防静电PET膜及其制备方法,具有防静电、高耐候性、无残胶、反复粘贴的特点,智能光控速度和耐疲劳性均能达到最佳水平,有效提高了使用舒适性。
本发明的技术方案是这样实现的:
一种渐变色防静电PET膜,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET基材的厚度为50~150um,透光率为90~95%,雾度为3~5%。
优选地,所述光控混合物涂层是由变色剂和光控剂按照重量份数比2~4:3~5常温混合制成。
优选地,所述变色剂为三氧化钨或氧化钕。
优选地,所述光控剂为苯并吡喃。
优选地,所述防静电层包括抗静电剂层、功能涂料层,所述抗静电剂层与功能涂料层之间固定设置有丙烯酸胶粘剂。
优选地,所述抗静电剂层的内部均匀填充有改性硅氧烷类高分子防静电剂。
优选地,所述功能涂料层按重量份数称取异丙醇4~5份、抗静电剂1~2份、添加剂0.010~0.015份、去离子水3~5份。
优选地,抗静电剂为乙氧基化烷基胺。
优选地,所述压敏胶层中含有粒径为0.5nm~40um的防静电微粒,所述防静电微粒为银粉或镍粉,所述防静电微粒与所述压敏胶层按质量比为1~3:20~25。
一种渐变色防静电PET膜的制备方法,具体步骤如下:
(1)PET基膜经电晕值50~150的电晕处理和使用双面除尘装置除尘处理,PET基膜的一面涂布一层防静电层,所述防静电层的涂层厚度为0.1~1um;
(2)在PET基膜的另一面涂布一层5~20um压敏胶层,将上述膜经过干燥烘干后在其上覆上一层厚度为30~120um离型膜,所述离型膜上覆盖有0.05~0.5um复合胶涂层,所述复合胶涂层上覆盖有0.2~1um光控混合物涂层,所述光控混合物涂层上覆盖有0.05~0.5um耐磨涂层;以上涂胶牵引张力为250~260N、涂胶张力为110~120N,采用逆涂,涂布速度为40~45m/min;
(3)将步骤(2)中的膜放入烘箱内进行烘干,炉内温度为90~100℃,烘箱内总风量为25000m3/h,烘箱洁净度为每立方英尺内,大于等于0.6的灰尘颗粒不能超过1000颗;收卷时张力为240~250N,锥度为55~65%;贴合辊压力为M:0.5MPa/G:0.5MPa;牵引辊压力为M:0.2MPa/G:0.3MPa。
本发明具有以下有益效果:
(1)本发明一种渐变色防静电PET膜采用三氧化钨和苯并吡喃的混合物涂层具有逆变化耐疲劳性较好与变色和复原速度较快的优点,使PET薄膜的智能光控速度和耐疲劳性均能达到最佳水平,有效提高了使用舒适性。
(2)本发明一种渐变色防静电PET膜采用表面涂覆防静电层,使电导率大于0.3S/cm,有效防止静电产生,同时,有效提高资源利用率。通过在压敏胶层中添加防静电微粒,使保护膜在剥离时也不产生静电,还具有高耐候性、无残胶、反复粘贴的特点,性能持久、稳定。
具体实施方式
为了对本发明的技术特征、目的和有益效果有更加清楚的理解,现结合具体实施例对本发明的技术方案进行以下详细说明,应理解这些实例仅用于说明本发明而不用于限制本发明的范围。
实施例1
一种渐变色防静电PET膜,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET基材的厚度为50um,透光率为90%,雾度为3%。所述光控混合物涂层是由变色剂和光控剂按照重量份数比2:3常温混合制成。所述变色剂为三氧化钨。所述光控剂为苯并吡喃。所述防静电层包括抗静电剂层、功能涂料层,所述抗静电剂层与功能涂料层之间固定设置有丙烯酸胶粘剂。所述抗静电剂层的内部均匀填充有改性硅氧烷类高分子防静电剂。所述功能涂料层按重量份数称取异丙醇4份、抗静电剂1份、添加剂0.01份、去离子水3份。抗静电剂为乙氧基化烷基胺。所述压敏胶层中含有粒径为0.5nm的防静电微粒,所述防静电微粒为银粉,所述防静电微粒与所述压敏胶层按质量比为1:20。
一种渐变色防静电PET膜的制备方法,具体步骤如下:
(1)PET基膜经电晕值50的电晕处理和使用双面除尘装置除尘处理,PET基膜的一面涂布一层防静电层,所述防静电层的涂层厚度为0.1~1um;
(2)在PET基膜的另一面涂布一层5um压敏胶层,将上述膜经过干燥烘干后在其上覆上一层厚度为30um离型膜,所述离型膜上覆盖有0.05um复合胶涂层,所述复合胶涂层上覆盖有0.2um光控混合物涂层,所述光控混合物涂层上覆盖有0.05um耐磨涂层;以上涂胶牵引张力为250N、涂胶张力为110N,采用逆涂,涂布速度为40m/min;
(3)将步骤(2)中的膜放入烘箱内进行烘干,炉内温度为90℃,烘箱内总风量为25000m3/h,烘箱洁净度为每立方英尺内,大于等于0.6的灰尘颗粒不能超过1000颗;收卷时张力为240N,锥度为55%;贴合辊压力为M:0.5MPa/G:0.5MPa;牵引辊压力为M:0.2MPa/G:0.3MPa。
实施例2
一种渐变色防静电PET膜,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET基材的厚度为150um,透光率为95%,雾度为5%。所述光控混合物涂层是由变色剂和光控剂按照重量份数比4:5常温混合制成。所述变色剂为氧化钕。所述光控剂为苯并吡喃。所述防静电层包括抗静电剂层、功能涂料层,所述抗静电剂层与功能涂料层之间固定设置有丙烯酸胶粘剂。所述抗静电剂层的内部均匀填充有改性硅氧烷类高分子防静电剂。所述功能涂料层按重量份数称取异丙醇5份、抗静电剂2份、添加剂0.015份、去离子水5份。抗静电剂为乙氧基化烷基胺。所述压敏胶层中含有粒径为40um的防静电微粒,所述防静电微粒为镍粉,所述防静电微粒与所述压敏胶层按质量比为3:25。
一种渐变色防静电PET膜的制备方法,具体步骤如下:
(1)PET基膜经电晕值150的电晕处理和使用双面除尘装置除尘处理,PET基膜的一面涂布一层防静电层,所述防静电层的涂层厚度为1um;
(2)在PET基膜的另一面涂布一层20um压敏胶层,将上述膜经过干燥烘干后在其上覆上一层厚度为120um离型膜,所述离型膜上覆盖有0.5um复合胶涂层,所述复合胶涂层上覆盖有1um光控混合物涂层,所述光控混合物涂层上覆盖有0.5um耐磨涂层;以上涂胶牵引张力为260N、涂胶张力为120N,采用逆涂,涂布速度为45m/min;
(3)将步骤(2)中的膜放入烘箱内进行烘干,炉内温度为100℃,烘箱内总风量为25000m3/h,烘箱洁净度为每立方英尺内,大于等于0.6的灰尘颗粒不能超过1000颗;收卷时张力为250N,锥度为65%;贴合辊压力为M:0.5MPa/G:0.5MPa;牵引辊压力为M:0.2MPa/G:0.3MPa。
实施例3
一种渐变色防静电PET膜,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET基材的厚度为100um,透光率为92%,雾度为4%。所述光控混合物涂层是由变色剂和光控剂按照重量份数比3:4常温混合制成。所述变色剂为氧化钕。所述光控剂为苯并吡喃。所述防静电层包括抗静电剂层、功能涂料层,所述抗静电剂层与功能涂料层之间固定设置有丙烯酸胶粘剂。所述抗静电剂层的内部均匀填充有改性硅氧烷类高分子防静电剂。所述功能涂料层按重量份数称取异丙醇4份、抗静电剂2份、添加剂0.012份、去离子水4份。抗静电剂为乙氧基化烷基胺。所述压敏胶层中含有粒径为0.20um的防静电微粒,所述防静电微粒为银粉,所述防静电微粒与所述压敏胶层按质量比为2:23。
一种渐变色防静电PET膜的制备方法,具体步骤如下:
(1)PET基膜经电晕值100的电晕处理和使用双面除尘装置除尘处理,PET基膜的一面涂布一层防静电层,所述防静电层的涂层厚度为0.5um;
(2)在PET基膜的另一面涂布一层15um压敏胶层,将上述膜经过干燥烘干后在其上覆上一层厚度为80um离型膜,所述离型膜上覆盖有0.2um复合胶涂层,所述复合胶涂层上覆盖有0.7um光控混合物涂层,所述光控混合物涂层上覆盖有0.2um耐磨涂层;以上涂胶牵引张力为255N、涂胶张力为115N,采用逆涂,涂布速度为42m/min;
(3)将步骤(2)中的膜放入烘箱内进行烘干,炉内温度为95℃,烘箱内总风量为25000m3/h,烘箱洁净度为每立方英尺内,大于等于0.6的灰尘颗粒不能超过1000颗;收卷时张力为245N,锥度为60%;贴合辊压力为M:0.5MPa/G:0.5MPa;牵引辊压力为M:0.2MPa/G:0.3MPa。
以上实施例对本发明的产品及方法进行了详细介绍,本文中应用了具体例对本发明的主要步骤及实施方式进行了阐述,上述实施例只是帮助理解本发明的方法及核心原理。对于本领域的技术人员,依据本发明的核心原理,在具体实施中会对各条件和参数根据需要而变动,综上所述,本说明书不应理解为对本发明的限制。
Claims (10)
1.一种渐变色防静电PET膜,其特征在于,所述PET膜包括PET基膜、压敏胶层、离型膜、复合胶涂层、光控混合物涂层、耐磨涂层和防静电层;其中,所述PET基膜的一侧固定设有压敏胶层,所述压敏胶层上覆盖有离型膜,所述离型膜上覆盖有复合胶涂层,所述复合胶涂层上覆盖有光控混合物涂层,所述光控混合物涂层上覆盖有耐磨涂层,所述PET基膜的另一侧固定设有防静电层远离所述压敏胶层;所述PET
基材的厚度为50~150um,透光率为90~95%,雾度为3~5%。
2.根据权利要求1所述的渐变色防静电PET膜,其特征在于,所述光控混合物涂层是由变色剂和光控剂按照重量份数比2~4:3~5常温混合制成。
3.根据权利要求1所述的渐变色防静电PET膜,其特征在于,所述变色剂为三氧化钨或氧化钕。
4.根据权利要求1所述的渐变色防静电PET膜,其特征在于,所述光控剂为苯并吡喃。
5.根据权利要求1所述的渐变色防静电PET膜,其特征在于,所述防静电层包括抗静电剂层、功能涂料层,所述抗静电剂层与功能涂料层之间固定设置有丙烯酸胶粘剂。
6.根据权利要求5所述的渐变色防静电PET膜,其特征在于,所述抗静电剂层的内部均匀填充有改性硅氧烷类高分子防静电剂。
7.根据权利要求5所述的渐变色防静电PET膜,其特征在于,所述功能涂料层按重量份数称取异丙醇4~5份、抗静电剂1~2份、添加剂0.010~0.015份、去离子水3~5份。
8.根据权利要求7所述的渐变色防静电PET膜,其特征在于,抗静电剂为乙氧基化烷基胺。
9.根据权利要求1所述的渐变色防静电PET膜,其特征在于,所述压敏胶层中含有粒径为0.5nm~40um的防静电微粒,所述防静电微粒为银粉或镍粉,所述防静电微粒与所述压敏胶层按质量比为1~3:20~25。
10.一种根据权利要求1~9所述的渐变色防静电PET膜的制备方法,其特征在于,具体步骤如下:
(1)PET基膜经电晕值50~150的电晕处理和使用双面除尘装置除尘处理,PET基膜的一面涂布一层防静电层,所述防静电层的涂层厚度为0.1~1um;
(2)在PET基膜的另一面涂布一层5~20um压敏胶层,将上述膜经过干燥烘干后在其上覆上一层厚度为30~120um离型膜,所述离型膜上覆盖有0.05~0.5um复合胶涂层,所述复合胶涂层上覆盖有0.2~1um光控混合物涂层,所述光控混合物涂层上覆盖有0.05~0.5um耐磨涂层;以上涂胶牵引张力为250~260N、涂胶张力为110~120N,采用逆涂,涂布速度为40~45m/min;
(3)将步骤(2)中的膜放入烘箱内进行烘干,炉内温度为90~100℃,烘箱内总风量为25000m3/h,烘箱洁净度为每立方英尺内,大于等于0.6的灰尘颗粒不能超过1000颗;收卷时张力为240~250N,锥度为55~65%;贴合辊压力为M:0.5MPa/G:0.5MPa;牵引辊压力为M:0.2MPa/G:0.3MPa。
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