CN110041769A - 漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法 - Google Patents

漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法 Download PDF

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CN110041769A
CN110041769A CN201910383970.7A CN201910383970A CN110041769A CN 110041769 A CN110041769 A CN 110041769A CN 201910383970 A CN201910383970 A CN 201910383970A CN 110041769 A CN110041769 A CN 110041769A
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fluorocarbon resin
zinc powder
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薛涵与
李心忠
方润
夏建荣
叶远松
林棋
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Minjiang University
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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
    • C09D127/00—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 a halogen; Coating compositions based on derivatives of such polymers
    • C09D127/02—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment
    • C09D127/12—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 a halogen; Coating compositions based on derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • 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
    • 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
    • C09D5/08—Anti-corrosive paints
    • C09D5/10—Anti-corrosive paints containing metal dust
    • C09D5/106—Anti-corrosive paints containing metal dust containing Zn
    • 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
    • C09D5/18—Fireproof paints including high temperature resistant paints
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    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract

本发明公开了一种漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法。其是将漆酚与氟碳树脂、锌粉按质量比3:4:3混合，再加入混合物总质量1%的防腐剂苯甲酸钠，室温下机械搅拌混合10min，即得到所述漆酚/氟碳树脂/锌粉复合海洋防腐漆。本发明所得海洋耐盐雾漆使用时需添加其质量15%的固化剂六亚甲基二异氰酸酯三聚体，在熟化15min后进行施工涂覆，其在熟化后24h内可室温固化成膜。本发明利用氟碳树脂改善了漆酚的综合使用性能，其中涂层耐冲击性提升至100cm，柔韧性提升至2mm、耐盐雾性达到3000h，防光老化性能达到2500h，变色失光≤2级。该漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆可用于海洋船舶底漆领域。

Description

漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法
技术领域
本发明属于海洋耐盐雾漆制备技术领域，具体涉及一种漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法。
背景技术
海洋海水腐蚀主要是氯离子腐蚀，海洋氯离子可破坏金属氧化膜保护层，形成点蚀或坑蚀，对金属会出现晶间腐蚀。海洋防腐涂料是涂抹在海洋基础设施上以保证较长防腐年限的物质，其能与钢结构表面铁原子快速反应，生成具有物理、化学双重保护作用，可以长期耐住氯离子腐蚀。
漆酚是生漆的主要成膜物质，是涂料之王，具有耐腐、耐磨、耐酸、耐溶剂、耐热、隔水和绝缘性好、富有光泽等特性，是军工、工业设备、农业机械、基本建设、手工艺品和高端家具等的优质涂料。但是作为海洋耐盐雾涂料，漆酚基涂料树脂在耐盐雾腐蚀性能方面存在不足。
漆酚/氟碳树脂基复合材料已见于报道。氟碳树脂由于引入的氟元素电负性大，碳氟键能强，具有特别优越的各项性能，如耐候性、耐热性、耐低温性、耐化学药品性，而且具有独特的不粘性和低摩擦性。氟碳树脂的引入可以进一步改善漆酚的耐盐雾性能和综合使用性能。
本发明以氟碳树脂改善漆酚，并辅助锌粉（防止氯离子腐蚀）和油性防霉剂，以期得到物理机械性能、耐溶剂性能、耐盐雾性能优异的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆。
发明内容
本发明的目的在于针对漆酚基海洋耐盐雾涂料性能的不足，提供一种漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法。经本发明改性后的漆酚基氟碳树脂复合涂料可在熟化后24h内室温固化成膜。涂层利用氟碳树脂改善了漆酚的综合使用性能，其中涂层耐冲击性提升至100cm，柔韧性提升至2mm、耐盐雾性达到3000h，防光老化性能达到2500h，变色失光≤2级。
为实现上述目的，本发明采用如下技术方案：
一种漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的制备方法，其是将漆酚与氟碳树脂、锌粉按质量比3:4:3混合，再加入混合物总质量1%的防腐剂，室温下机械搅拌混合10min，即得到所述漆酚/氟碳树脂/锌粉复合海洋防腐漆。
所述氟碳树脂含氟量≥23.5%，羟值为50mgKOH/g；平均分子量为8000。
所述防腐剂为苯甲酸钠。
采用锌粉为填料可起到耐氯离子腐蚀的作用。
所述漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆在使用时需添加其质量15%的固化剂，熟化15min后进行施工涂覆。所述固化剂为六亚甲基二异氰酸酯三聚体。
本发明制得的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆经涂覆后，可在24h内室温固化成膜；其涂层耐冲击性提升至100cm，柔韧性提升至2mm、耐盐雾性达到3000h，防光老化性能达到2500h，变色失光≤2级。
本发明将漆酚与氟碳树脂混合，加入锌粉以通过电化学方法防止氯离子腐蚀，并添加防腐剂苯甲酸钠以进一步改善树脂的防腐性能，得到海洋耐盐雾用漆酚基氟碳树脂复合树脂。树脂可在固化剂六亚甲基二异氰酸酯三聚体的作用下固化成膜。固化后的海洋耐盐雾涂层具有优异的耐冲击、柔韧性、耐盐雾性和防光老化性能。
与现有技术相比，本发明涉及的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的优点在于：
本发明所得漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆具备漆酚树脂的优异性能，如热氧稳定性、电绝缘性能、耐候性等；其通过与氟碳树脂的复合，使复合涂层具备了更加优异的物理机械性能、耐溶剂性能、耐高温；而锌粉和防霉剂的添加大幅度改善了涂层的耐盐雾性能和光老化，使其耐盐雾性达到3000h，防光老化性能达到2500h。该漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆可用于海洋船舶底漆领域。
具体实施方式
为了使本发明所述的内容更加便于理解，下面结合具体实施方式对本发明所述的技术方案做进一步的说明，但是本发明不仅限于此。
实施例 1
将漆酚与氟碳树脂、锌粉按质量比3:4:3混合，再加入混合物总质量1%的防腐剂苯甲酸钠，室温下机械搅拌混合10min，即得到漆酚/氟碳树脂/锌粉复合海洋防腐漆。
该海洋耐盐雾漆使用时添加其总质量15%的固化剂六亚甲基二异氰酸酯三聚体，在熟化15min后可施工涂覆。在与固化剂混合熟化15min后可施工涂覆。
性能测试如下：涂层成膜性能按照GB/T1728-1979 漆膜、腻子膜干燥时间测定法测定；涂层耐冲击性能按照GB/T1732-1993漆膜耐冲击测定法测定；涂层柔韧性能按照GB/T1731-1993漆膜柔韧性测定法测定；涂层耐盐雾性能按照GB/T1771-2007色漆和清漆耐中性盐雾性能的测定；涂层耐光老化性能按照GB/T 1865-2009色漆和清漆人工气候老化和人工辐射暴露测试。
以下为实施例1所得复合树脂的性能：
表1 漆酚/氟碳树脂/锌粉复合涂层的机械性能对比
表2 生漆和漆酚/氟碳树脂/锌粉复合涂层的耐盐雾性能
表3 生漆和漆酚/氟碳树脂/锌粉复合涂层的变色失光率（光老化性能）
结果显示，涂料可在24h内室温固化成膜。涂层耐冲击性提升至100cm，柔韧性提升至2mm、耐盐雾性达到3000h，防光老化性能达到2500h，变色失光≤2级。
以上所述仅为本发明的较佳实施例，凡依本发明申请专利范围所做的均等变化与修饰，皆应属本发明的涵盖范围。

Claims (6)

1.一种漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的制备方法，其特征在于：将漆酚与氟碳树脂、锌粉按质量比3:4:3混合，再加入混合物总质量1%的防腐剂，室温下机械搅拌混合10min，即得到所述漆酚/氟碳树脂/锌粉复合海洋防腐漆。
2.根据权利要求1所述的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的制备方法，其特征在于：所述氟碳树脂含氟量≥23.5%，羟值为50mgKOH/g；平均分子量为8000。
3.根据权利要求1所述的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的制备方法，其特征在于：所述防腐剂为苯甲酸钠。
4.一种如权利要求1-3任一项所述方法制得的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆。
5.一种如权利要求4所述漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的使用方法，其特征在于：所述复合海洋耐盐雾漆在使用时需添加其质量15%的固化剂，熟化15min后进行施工涂覆。
6.根据权利要求5所述的漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆的使用方法，其特征在于：所述固化剂为六亚甲基二异氰酸酯三聚体。
CN201910383970.7A 2019-05-09 2019-05-09 漆酚/氟碳树脂/锌粉复合海洋耐盐雾漆及其制备方法 Pending CN110041769A (zh)

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CN114196279A (zh) * 2021-12-17 2022-03-18 浙江鱼童新材料股份有限公司 一种低表面能船舶底漆及其制备方法

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