CN109504304A - 高透明高粘度保护膜 - Google Patents
高透明高粘度保护膜 Download PDFInfo
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- CN109504304A CN109504304A CN201811512153.9A CN201811512153A CN109504304A CN 109504304 A CN109504304 A CN 109504304A CN 201811512153 A CN201811512153 A CN 201811512153A CN 109504304 A CN109504304 A CN 109504304A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/04—Homopolymers or copolymers of ethene
- C08L23/06—Polyethene
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J153/00—Adhesives based on block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Adhesives based on derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
- C09J2301/122—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present only on one side of the carrier, e.g. single-sided adhesive tape
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2301/00—Additional features of adhesives in the form of films or foils
- C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
- C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
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- Organic Chemistry (AREA)
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Abstract
本发明公开了一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,所述透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,所述结构加强层采用电纺丝工艺将纤维喷附而成,所述粘结层采用嵌段共聚聚丙烯。透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,故透明度较高;减少导光板在贴附保护膜后的翘曲形变,嵌段共聚聚丙烯具有良好的粘结性能,同时透明度较好。
Description
技术领域
本发明涉及保护膜,特别涉及一种高透明高粘度保护膜。
背景技术
在日常生活中,人们常常会接触到塑料产品,目前市面上具有大量通过热成型的塑料日用器具,大部分均采用PMMA作为材料,在成型时,先将PMMA片材加热至软化温度,然后通过模压或吸塑成型得到所需的用品或器件的形状。在成型过程中,通常在PMMA片材的表面附着一层起保护作用的膜材,防止在运输或下游工序中损伤其表面,影响最终成品的外观。针对该类起到表面保护作用的膜材料而言,高粘度和高透明性是主要的技术特征。
发明内容
本发明的目的是提供一种高透明高粘度保护膜。
本发明的上述技术目的是通过以下技术方案得以实现的:一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,所述透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,所述结构加强层采用电纺丝工艺将纤维喷附而成,所述粘结层采用嵌段共聚聚丙烯。
作为优选,所述低晶点的聚乙烯密度为0.88-0.92。
作为优选,所述低晶点的聚丙烯密度为0.92-0.94。
作为优选,所述透明层的厚度为总厚度的60%-80%,所述结构加强层的厚度为总厚度的10%-20%,所述粘结层的厚度为总厚度的 10%-20%。
作为优选,所述透明层中聚乙烯和聚丙烯的比例为3:1。
作为优选,所述纤维由聚酯类材料制成。
作为优选,所述透明层的厚度小于0.05mm。
作为优选,所述结构加强层的厚度小于0.02mm。
作为优选,所述粘结层的厚度小于0.02mm。
综上所述,通过采用上述技术方案,透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,故透明度较高;纤维在透明层与粘结层之间,起到了提高保护膜弹性模量的作用,提高了导光板保护膜的整体弹性模量和抗热胀冷缩性能,减少导光板在贴附保护膜后的翘曲形变,嵌段共聚聚丙烯具有良好的粘结性能,同时透明度较好。
具体实施方式
本具体实施例仅仅是对本发明的解释,其并不是对本发明的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本发明的权利要求范围内都受到专利法的保护。
实施例1:
一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,晶点的聚乙烯密度为0.88,低晶点的聚丙烯密度为0.92,其中透明层中聚乙烯和聚丙烯的比例为3:1。
结构加强层采用电纺丝工艺将纤维喷附而成,粘结层采用嵌段共聚聚丙烯。
实施例2:
一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,晶点的聚乙烯密度为0.92,低晶点的聚丙烯密度为0.94,其中透明层中聚乙烯和聚丙烯的比例为3:1。
结构加强层采用电纺丝工艺将纤维喷附而成,粘结层采用嵌段共聚聚丙烯。
实施例3:
一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,晶点的聚乙烯密度为0.9,低晶点的聚丙烯密度为0.93,其中透明层中聚乙烯和聚丙烯的比例为3.2:1。
结构加强层采用电纺丝工艺将纤维喷附而成,粘结层采用嵌段共聚聚丙烯。
实施例4:
一种高透明高粘度保护膜,包括透明层、结构加强层和粘结层,透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,晶点的聚乙烯密度为0.92,低晶点的聚丙烯密度为0.92,其中透明层中聚乙烯和聚丙烯的比例为3:1。
结构加强层采用电纺丝工艺将纤维喷附而成,粘结层采用嵌段共聚聚丙烯。
实施例1至实施例4的厚度如下表所示:
实施例 | 透明层厚度 | 结构加强层厚度 | 粘结层厚度 |
实施例1 | 0.05mm | 0.015mm | 0.015mm |
实施例2 | 0.04mm | 0.005mm | 0.006mm |
实施例3 | 0.03mm | 0.01mm | 0.01mm |
实施例4 | 0.02mm | 0.0025mm | 0.0025mm |
实施例1至实施例4的弹性模量和粘着力如表所示(粘着力按照 GB/T2792):
实施例 | 弹性模量 | 粘着力 |
实施例1 | 1425MPA | 8.7 |
实施例2 | 1310MPA | 9.2 |
实施例3 | 1258MPA | 8.9 |
实施例4 | 1221MPA | 8.5 |
Claims (9)
1.一种高透明高粘度保护膜,其特征在于:包括透明层、结构加强层和粘结层,所述透明层由低晶点的聚乙烯和低晶点的聚丙烯混合,所述结构加强层采用电纺丝工艺将纤维喷附而成,所述粘结层采用嵌段共聚聚丙烯。
2.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述低晶点的聚乙烯密度为0.88-0.92。
3.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述低晶点的聚丙烯密度为0.92-0.94。
4.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述透明层的厚度为总厚度的60%-80%,所述结构加强层的厚度为总厚度的10%-20%,所述粘结层的厚度为总厚度的10%-20%。
5.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述透明层中聚乙烯和聚丙烯的比例为3:1。
6.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述纤维由聚酯类材料制成。
7.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述透明层的厚度小于0.05mm。
8.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述结构加强层的厚度小于0.02mm。
9.根据权利要求1所述的高透明高粘度保护膜,其特征在于:所述粘结层的厚度小于0.02mm。
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Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008025979A1 (de) * | 2008-05-30 | 2009-12-03 | Tesa Se | Klebeband insbesondere für Außenanwendungen mit einem textilen Träger |
CN202975387U (zh) * | 2012-12-11 | 2013-06-05 | 京东方科技集团股份有限公司 | 导光板保护膜 |
CN104626699A (zh) * | 2015-03-04 | 2015-05-20 | 张家港康得新光电材料有限公司 | 一种自粘保护膜及其应用 |
JP6353129B2 (ja) * | 2008-12-19 | 2018-07-04 | スリーエム イノベイティブ プロパティズ カンパニー | 接着剤物品の製造方法 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE102008025979A1 (de) * | 2008-05-30 | 2009-12-03 | Tesa Se | Klebeband insbesondere für Außenanwendungen mit einem textilen Träger |
JP6353129B2 (ja) * | 2008-12-19 | 2018-07-04 | スリーエム イノベイティブ プロパティズ カンパニー | 接着剤物品の製造方法 |
CN202975387U (zh) * | 2012-12-11 | 2013-06-05 | 京东方科技集团股份有限公司 | 导光板保护膜 |
CN104626699A (zh) * | 2015-03-04 | 2015-05-20 | 张家港康得新光电材料有限公司 | 一种自粘保护膜及其应用 |
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