CN108727949A - 一种车架涂装的电泳漆 - Google Patents

一种车架涂装的电泳漆 Download PDF

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CN108727949A
CN108727949A CN201810444081.2A CN201810444081A CN108727949A CN 108727949 A CN108727949 A CN 108727949A CN 201810444081 A CN201810444081 A CN 201810444081A CN 108727949 A CN108727949 A CN 108727949A
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electrophoretic paint
powder coating
high tenacity
thermosetting powder
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解会军
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Zhucheng Machinery Co Ltd Of Furistock
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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
    • 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
    • C09D167/00—Coating compositions based on polyesters obtained by reactions forming a carboxylic ester link in the main chain; Coating compositions based on derivatives of such polymers
    • C09D167/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • 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
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
    • C09D5/4423—Polyesters, esterified polyepoxides
    • 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
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4419—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications with polymers obtained otherwise than by polymerisation reactions only involving carbon-to-carbon unsaturated bonds
    • C09D5/4465—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
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/4473—Mixture of polymers
    • 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
    • C09D5/44—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications
    • C09D5/448—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes for electrophoretic applications characterised by the additives used
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/002—Physical properties
    • C08K2201/005—Additives being defined by their particle size in general
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K2201/00—Specific properties of additives
    • C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Abstract

本发明的技术方案是一种车架涂装的电泳漆，由以下重量份的原料制成：聚酯树脂40～60份；颜填料40～60份；水性聚氨酯树脂20～30份；聚酯多元醇20～30份；复合极性添加剂20～30份；流平剂0.5～1.5份；安息香0.5～1份；润湿分散剂1～1.5份；二氧化硅纳米粒子1～1.5份；硬脂酸铝2～3；稀土稳定剂2～3。本发明的电泳漆中含有复合极性添加剂，提高了膜层的厚度，可以将膜的厚度从100nm提高到600nm以上，添加的纳米粒子提高内腔泳透力，通过缓蚀剂以及特殊的稳定剂改进了工作液的稳定性，有利于提高膜层阻抗能力和抗击穿能力，使漆膜不易产生针孔、缩孔，充分保证了车架的质量。

Description

一种车架涂装的电泳漆
技术领域
本发明涉及一种漆料，具体是一种车架涂装的电泳漆。
背景技术
车架是汽车的基体，用以固定汽车的绝大部分部件和总成，并使它们保持正确安装位置，承受来自车内外的各种载荷。 目前汽车车架的结构形式有三种：边梁式车架、中梁式车架（或称脊梁式车架）和综合式车架，车架整体结构形成后，需要在车架表面进行喷漆或电泳涂装，使车架表面形成一层防护膜，即油漆，保证车架不受腐蚀氧化等。目前较好的上漆方式便是电泳，这样更均匀，与传统的喷漆不同，电泳速度更快，更省力，但受电泳漆的限制，电泳后的车架整体漆膜较薄，有的地方甚至出现大面积的遗漏，这样不利于保证车架的质量，因此需要一种更便于电泳，高泳透力的电泳漆。
发明内容
本发明的目的在于，提供一种车架涂装的电泳漆为了实现上述目的，本发明采用的技术方案如下：
为解决上述技术问题，一种车架涂装的电泳漆，由以下重量份的原料制成：聚酯树脂40～60份；颜填料40～60份；水性聚氨酯树脂20～30份；聚酯多元醇20～30份；复合极性添加剂20～30份；流平剂0.5～1.5份；安息香0.5～1份；润湿分散剂1～1.5份；二氧化硅纳米粒子1～1.5份；硬脂酸铝2～3；稀土稳定剂2～3。 聚酯树脂具有如下理化特性：外观黑色粒状，粘度(200℃旋转粘度CP)2100～2300； 软化点(环球法)℃105，酸值(mgKOH/g)50，玻璃化温度(℃)50～51。
作为优选，所述聚酯多元醇由苯二甲酸酐与季戊四醇聚合而成。
作为优选，所述复合极性添加剂为羟基乙酸钠、葡萄糖酸钠、柠檬酸钠按照1:1:1配比而成。
作为优选，所述二氧化硅纳米粒子为球形，平均粒径小于20纳米，且二氧化硅纳米粒子的多分散性指数小于或等于0.1。
本发明的电泳漆中含有复合极性添加剂，提高了膜层的厚度，可以将膜的厚度从100nm提高到600nm以上，添加的纳米粒子提高内腔泳透力，通过缓蚀剂以及特殊的稳定剂改进了工作液的稳定性，有利于提高膜层阻抗能力和抗击穿能力，使漆膜不易产生针孔、缩孔，充分保证了车架的质量。
具体实施方式
一种车架涂装的电泳漆，由以下重量份的原料制成：聚酯树脂50份；颜填料50份；水性聚氨酯树脂25份；聚酯多元醇25份；复合极性添加剂25份；流平剂1份；安息香0.8份；润湿分散剂1.2份；二氧化硅纳米粒子1.3；硬脂酸铝2；稀土稳定剂3； 聚酯树脂具有如下理化特性：外观黑色粒状，粘度(200℃旋转粘度CP)2100～2300； 软化点(环球法)℃105，酸值(mgKOH/g)50，玻璃化温度(℃)50～51；
所述聚酯多元醇由苯二甲酸酐与季戊四醇聚合而成
所述复合极性添加剂为羟基乙酸钠、葡萄糖酸钠、柠檬酸钠按照1:1:1配比而成；
所述二氧化硅纳米粒子为球形，平均粒径小于20纳米，且二氧化硅纳米粒子的多分散性指数小于或等于0.1。
上述车架涂装的电泳漆性能参数如下：
表面粗糙度（μm） 0.15～0.22
冲击强度（N·cm） 520
杯突（mm） 9.5
抗石击性（级） 1
划格试验（级） 1
膜厚（μm） 20～22
耐盐雾 840h完好
腐蚀交变 40次循环完好
以上所述仅为本发明示意性的具体实施方式，并非用以限定本发明的范围。任何本领域的技术人员，在不脱离本发明的构思和原则的前提下所作出的等同变化与修改，均应属于本发明保护的范围。

Claims (5)

1.一种车架涂装的电泳漆，其特征在于，由以下重量份的原料制成：聚酯树脂40～60份；颜填料40～60份；水性聚氨酯树脂20～30份；聚酯多元醇20～30份；复合极性添加剂20～30份；流平剂0.5～1.5份；安息香0.5～1份；润湿分散剂1～1.5份；二氧化硅纳米粒子1～1.5份；硬脂酸铝2～3；稀土稳定剂2～3。
2.根据权利要求1所述的一种高韧度热固性粉末涂料，其特征在于，聚酯树脂具有如下理化特性：外观黑色粒状，粘度(200℃旋转粘度CP)2100～2300； 软化点(环球法)℃105，酸值(mgKOH/g)50，玻璃化温度(℃)50～51。
3.根据权利要求1所述的一种高韧度热固性粉末涂料，其特征在于：所述聚酯多元醇由苯二甲酸酐与季戊四醇聚合而成。
4.根据权利要求1所述的一种高韧度热固性粉末涂料，其特征在于：所述复合极性添加剂为羟基乙酸钠、葡萄糖酸钠、柠檬酸钠按照1:1:1配比而成。
5.根据权利要求1所述的一种高韧度热固性粉末涂料，其特征在于：所述二氧化硅纳米粒子为球形，平均粒径小于20纳米，且二氧化硅纳米粒子的多分散性指数小于或等于0.1。
CN201810444081.2A 2018-05-10 2018-05-10 一种车架涂装的电泳漆 Pending CN108727949A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112442721A (zh) * 2020-11-13 2021-03-05 西安昆仑工业（集团）有限责任公司 一种隔热断桥铝型材电泳上漆工艺

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CN102180615A (zh) * 2011-03-18 2011-09-14 华南理工大学 一种改性碱木质素水泥助磨剂及其制备方法
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112442721A (zh) * 2020-11-13 2021-03-05 西安昆仑工业（集团）有限责任公司 一种隔热断桥铝型材电泳上漆工艺

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