WO2023070772A1 - 抗静电离型膜 - Google Patents

抗静电离型膜 Download PDF

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WO2023070772A1
WO2023070772A1 PCT/CN2021/131463 CN2021131463W WO2023070772A1 WO 2023070772 A1 WO2023070772 A1 WO 2023070772A1 CN 2021131463 W CN2021131463 W CN 2021131463W WO 2023070772 A1 WO2023070772 A1 WO 2023070772A1
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antistatic
parts
coating
release film
layer
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PCT/CN2021/131463
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French (fr)
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杨晓明
李耀邦
夏厚君
吴鹏辉
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浙江欧仁新材料有限公司
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/04—Coating
    • C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D129/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal, or ketal radical; Coating compositions based on hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Coating compositions based on derivatives of such polymers
    • C09D129/02—Homopolymers or copolymers of unsaturated alcohols
    • C09D129/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/63—Additives non-macromolecular organic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/65—Additives macromolecular
    • 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
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners

Definitions

  • the invention belongs to the technical field of release films, in particular to an antistatic release film.
  • the release film is widely used in the processing procedures of electronic products.
  • Electronic devices need to be lighter, thinner and shorter, and the power density of electrical operations needs to be continuously improved.
  • the application occasions of these electronic products generally have anti-static requirements, because the existence of static electricity not only makes the product surface easy to absorb dust, but also affects the circuit. Accuracy, or lead to circuit breakdown in the process of electronic product processing, making the product invalid. Therefore, it is necessary to do electrostatic protection treatment on the protective film.
  • the antistatic performance of the existing release film will deteriorate over time, which brings uncertain risks to the product.
  • the object of the present invention is to provide a kind of antistatic release film, this antistatic release film can keep the change of the surface resistance of the antistatic coating in the antistatic release film after 200 days almost unchanged, thereby improving the reliability of the protective film performance sex.
  • the technical solution adopted in the present invention is: a kind of antistatic release film, comprising substrate layer, antistatic coating and release agent coating, described antistatic coating is positioned at release agent coating and release agent coating Between the substrate layers, the antistatic coating is obtained by drying the coating solution, and the coating solution consists of the following components in parts by weight:
  • the antioxidant is selected from antioxidant 1010, antioxidant 1024 or antioxidant 2246.
  • the leveling agent is selected from one of leveling agent 440, leveling agent DC57, and leveling agent DC3.
  • the substrate layer is one of PET layer, TPU layer, PAR layer, CPP layer, PVC layer, SEPS layer and SEBS layer.
  • the thickness of the antistatic coating is 3-10 ⁇ m.
  • the present invention has the following advantages compared with the prior art:
  • the antistatic release film of the present invention its antistatic coating is based on sodium octyl sulfate, N-ethyl-N-(3-sulfopropyl)-3-methylaniline sodium salt and further adds 0.8-8% of hydroxyethyl cellulose 1.5 parts, 0.3-0.8 parts of 3-acetylbenzoic acid, so that the surface resistance of the antistatic coating in the antistatic release film can be kept almost unchanged after 200 days, thereby improving the reliability of the protective film performance.
  • Embodiment 1 ⁇ 4 a kind of antistatic release film, comprise substrate layer 1, antistatic coating 2 and release agent coating 3, described antistatic coating 2 is positioned at release agent coating 3 and substrate Between the layers 1, the antistatic coating 2 is obtained by drying the coating liquid, and the coating liquid is composed of the following components by weight, as shown in Table 1:
  • the antioxidant in Example 1 is selected from antioxidant 1010, the above-mentioned leveling agent is selected from leveling agent DC57, the above-mentioned substrate layer 1 is a PET layer, and the thickness of the above-mentioned antistatic coating 3 is 4 ⁇ m.
  • the antioxidant in Example 2 is selected from antioxidant 1010, the leveling agent is selected from leveling agent DC3, the substrate layer 1 is a PVC layer, and the antistatic coating 3 has a thickness of 6 ⁇ m.
  • the antioxidant in Example 3 is selected from antioxidant 1010, the above-mentioned leveling agent is selected from leveling agent 440, the above-mentioned substrate layer 1 is a PET layer, and the thickness of the above-mentioned antistatic coating 3 is 4 ⁇ m.
  • the antioxidant in Example 4 is selected from antioxidant 2246, the above-mentioned leveling agent is selected from the leveling agent DC57, the above-mentioned substrate layer 1 is a PVC layer, and the thickness of the above-mentioned antistatic coating 3 is 6 ⁇ m.
  • a preparation process for the above-mentioned antistatic release film comprising 100 parts of polyurethane resin, 40 to 60 parts of polyvinyl alcohol, 2 to 4 parts of sodium octyl sulfate, N-ethyl-N-(3-sulfopropyl 1 ⁇ 3 parts of )-3-methylaniline sodium salt, 8 ⁇ 12 parts of dibutyl sebacate, 40 ⁇ 60 parts of n-butanol, 20 ⁇ 30 parts of isobutyl acetate, 0.8 ⁇ 1.5 parts of hydroxyethyl cellulose 0.3-0.8 parts of 3-acetylbenzoic acid, 0.2-0.8 parts of triethylenetetramine, 0.5-1.2 parts of silane coupling agent, 0.5-1 part of antioxidant, 0.6-2 parts of leveling agent, mix and stir evenly After that, the coating liquid is obtained;
  • the coating liquid is uniformly coated on the substrate layer 1, baked and dried to obtain an antistatic substrate film, and then a release agent coating 3 is coated on the surface of the antistatic substrate film to obtain an antistatic release film.
  • Comparative Examples 1-2 An antistatic release film, comprising a substrate layer 1, an antistatic coating 2 and a release agent coating 3, and the antistatic coating 2 is located between the release agent coating 3 and the substrate Between the layers 1, the antistatic coating 2 is obtained by drying the coating liquid, and the coating liquid is composed of the following components by weight, as shown in Table 2:
  • Comparative example preparation method is the same as embodiment.
  • Surface impedance adopts surface impedance testing instrument SRM-110 to test the antistatic coating in the antistatic release film obtained in the examples and comparative examples, and the detection standard is ASTM-D257, as shown in the evaluation results of table 3, each implementation After 200 days, the surface impedance of the antistatic coating in the antistatic release film hardly changes, while the surface impedance of the comparative example increases after 200 days; the present invention can keep the surface resistance of the antistatic coating in the antistatic release film after 200 days Variation is almost unchanged, which improves the reliability of the protective film performance.

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Abstract

一种抗静电离型膜，包括基材层(1)、抗静电涂层(2)和离型剂涂层(3)，所述抗静电涂层(2)位于离型剂涂层(3)和基材层(1)之间，所述抗静电涂层(2)由涂覆液烘干获得，此涂覆液由以下重量份组分组成：聚氨酯树脂100份、聚乙烯醇40～60份、辛基硫酸钠2～4份、N-乙基-N-(3-磺丙基)-3-甲基苯胺钠盐1～3份、癸二酸二丁酯8～12份、正丁醇40～60份、醋酸异丁酯20～30份、羟乙基纤维素0.8～1.5份、3-乙酰基苯甲酸0.3～0.8份、三亚乙基四胺0.2～0.8份、硅烷类偶合剂0.5～1.2份、抗氧化剂0.5～1份、流平剂0.6～2份。该抗静电离型膜使得200天后能保持抗静电离型膜中抗静电涂层(2)的表面电阻变化几乎不变化，从而提高了抗静电离型膜性能的可靠性。

Description

抗静电离型膜 技术领域
本发明属于离型膜技术领域，尤其涉及一种抗静电离型膜。
背景技术
目前离型膜被广泛应用于电子产品的加工工序。电子装置需要更加轻薄短小的需求下，电气操作的功率密度更需要不断提高，这些电子产品的应用场合一般都有防静电的要求，因为静电的存在不仅是产品表面容易吸附灰尘，更加影响线路的精准度，或导致电子产品加工过程中线路击穿，使产品失效。因此，有必要对保护膜做静电防护处理。现有离型膜随着时间较长时，防静电性能会变差，给产品带来了不确定的风险。
发明内容
本发明目的在于提供一种抗静电离型膜，该抗静电离型膜使得200天后能保持抗静电离型膜中抗静电涂层的表面电阻变化几乎不变化，从而提高了保护膜性能的可靠性。
为达到上述目的，本发明采用的技术方案是：一种抗静电离型膜，包括基材层、抗静电涂层和离型剂涂层，所述抗静电涂层位于离型剂涂层和基材层之间，所述抗静电涂层由涂覆液烘干获得，此涂覆液由以下重量份组分组成：
Figure PCTCN2021131463-appb-000001
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，所述抗氧化剂选自抗氧剂1010、抗氧剂1024或者抗氧剂2246。
2、上述方案中，所述流平剂选自流平剂440、流平剂DC57、流平剂DC3中的一种。
3、上述方案中，所述基材层为PET层、TPU层、PAR层、CPP层、PVC层、SEPS层和SEBS层中的一种。
4、上述方案中，所述抗静电涂层厚度均为3～10μm。
由于上述技术方案的运用，本发明与现有技术相比具有下列优点：
本发明抗静电离型膜，其抗静电涂层基于辛基硫酸钠、N-乙基-N-(3-磺丙基)-3-甲基苯胺钠盐进一步添加羟乙基纤维素0.8～1.5份、3-乙酰基苯甲酸0.3～0.8份，使得200天后能保持抗静电离型膜中抗静电涂层的表面电阻变化几乎不变化，从而提高了保护膜性能的可靠性。
附图说明
附图1为本实用新型抗静电离型膜结构示意图。
以上附图中：1、基材层；2、抗静电涂层；3、离型剂涂层。
具体实施方式
在本专利的描述中，需要说明的是，术语“中心”、“上”、“下”、“左”、“右”、“竖直”、“水平”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本实用新型和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本实用新型的限制；术语“第一”、“第二”、“第三”仅用于描述目的，而不能理解为指示或暗示相对重要性；此外，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本专利的具体含义。
下面结合实施例对本发明作进一步描述：
实施例1～4：一种抗静电离型膜，包括基材层1、抗静电涂层2和离型剂涂层3，所述抗静电涂层2位于离型剂涂层3和基材层1之间，所述抗静电涂层2由涂覆液烘干获得，此涂覆液由以下重量份组分组成，如表1所示：
表1
Figure PCTCN2021131463-appb-000002
Figure PCTCN2021131463-appb-000003
实施例1的抗氧化剂选自抗氧剂1010，上述流平剂选自流平剂DC57，上述基材层1为PET层，上述抗静电涂层3厚度均为4μm。
实施例2的抗氧化剂选自抗氧剂1010，上述流平剂选自流平剂DC3，上述基材层1为PVC层，上述抗静电涂层3厚度均为6μm。
实施例3的抗氧化剂选自抗氧剂1010，上述流平剂选自流平剂440，上述基材层1为PET层，上述抗静电涂层3厚度均为4μm。
实施例4的抗氧化剂选自抗氧剂2246，上述流平剂选自流平剂DC57，上述基材层1为PVC层，上述抗静电涂层3厚度均为6μm。
一种用于上述抗静电离型膜的制备工艺，将聚氨酯树脂100份、聚乙烯醇40～60份、辛基硫酸钠2～4份、N-乙基-N-(3-磺丙基)-3-甲基苯胺钠盐1～3份、癸二酸二丁酯8～12份、正丁醇40～60份、醋酸异丁酯20～30份、羟乙基纤维素0.8～1.5份、3-乙酰基苯甲酸0.3～0.8份、三亚乙基四胺0.2～0.8份、硅烷类偶合剂0.5～1.2份、抗氧化剂0.5～1份、流平剂0.6～2份混合，搅拌均匀后，得到涂覆液；
将涂覆液均匀涂覆于基材层1上，烘烤干燥获得抗静电基材膜，再在抗静电基材膜表面涂覆一离型剂涂层3，从而获得抗静电离型膜。
对比例1～2：一种抗静电离型膜，包括基材层1、抗静电涂层2和离型剂涂层3，所 述抗静电涂层2位于离型剂涂层3和基材层1之间，所述抗静电涂层2由涂覆液烘干获得，此涂覆液由以下重量份组分组成，如表2所示：
表2
Figure PCTCN2021131463-appb-000004
对比例制备方法同实施例。
上述实施例1～4和对比例1～2制得的抗静电离型膜的性能如表3所示：
表3
Figure PCTCN2021131463-appb-000005
表面阻抗采用表面阻抗测试仪器SRM-110，对实施例和对比例获得抗静电离型膜中的抗静电涂层进行测试，检测标准为ASTM-D257，如表3的评价结果所示，各实施例中抗静电离型膜中的抗静电涂层200天后表面阻抗几乎没有变化，而对比例200天后表面阻抗增加；本发明使得200天后能保持抗静电离型膜中抗静电涂层的表面电阻变化几乎不变化，从而提高了保护膜性能的可靠性。
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 (5)

  1. 一种抗静电离型膜，其特征在于：包括基材层(1)、抗静电涂层(2)和离型剂涂层(3)，所述抗静电涂层(2)位于离型剂涂层(3)和基材层(1)之间，所述抗静电涂层(2)由涂覆液烘干获得，此涂覆液由以下重量份组分组成：
    Figure PCTCN2021131463-appb-100001
  2. 根据权利要求1所述的抗静电离型膜，其特征在于：所述抗氧化剂选自抗氧剂1010、抗氧剂1024或者抗氧剂2246。
  3. 根据权利要求1所述的抗静电离型膜，其特征在于：所述流平剂选自流平剂440、流平剂DC57、流平剂DC3中的一种。
  4. 根据权利要求1所述的抗静电离型膜，其特征在于：所述基材层(1)为PET层、TPU层、PAR层、CPP层、PVC层、SEPS层和SEBS层中的一种。
  5. 根据权利要求1所述的抗静电离型膜，其特征在于：所述抗静电涂层(3)厚度均为3～10μm。
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CN117962446A (zh) * 2023-11-30 2024-05-03 惠州市贝斯特膜业有限公司 用于fpc板阻胶离型膜及其生产工艺

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