CN104403556A - 附着力好的防水汽车粉末涂料 - Google Patents

附着力好的防水汽车粉末涂料 Download PDF

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CN104403556A
CN104403556A CN201410733105.8A CN201410733105A CN104403556A CN 104403556 A CN104403556 A CN 104403556A CN 201410733105 A CN201410733105 A CN 201410733105A CN 104403556 A CN104403556 A CN 104403556A
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CN104403556B (zh
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李永志
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Guangdong Wise Environmental Protection Technology Co ltd
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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
    • C09D177/00—Coating compositions based on polyamides obtained by reactions forming a carboxylic amide link in the main chain; Coating compositions based on derivatives of such 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
    • C09D5/03—Powdery paints
    • C09D5/033—Powdery paints characterised by the additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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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
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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Abstract

本发明公开了一种附着力好的防水汽车粉末涂料，按重量份数计，由35-40份的聚酰胺树脂、1-2份环氧树脂、10-20份改性松香树脂、10-20份热塑性SEBS丁苯橡胶、5-10份沥青、10-15份钛白粉、2-5份金红石粉、5-8份有机硅、2-3份固化剂、0.5-2份稳定剂和2-3份流平剂组成。本发明的涂料的附着力好，防水性能好。

Description

附着力好的防水汽车粉末涂料
技术领域
本发明涉及汽车粉末涂料。
背景技术
     目前，随着全球工业的飞速发展，造成的环境问题也日益突出。如何开展环境保护工作已成为亟待人们研究的重要课题。环境意识强烈的一些西方国家已经开发研究出具有低挥发性有机物的汽车涂料，并大量投入生产和运用。随着汽车行业的不断发展，为了美化汽车的涂膜外观，减轻其造成的环境污染，改进汽车喷涂技术显得尤为重要。
对于汽车粉末涂料来说，粉末的附着力非常重要，如果粉末涂料的附着力小，则喷涂的漆膜容易掉离，影响寿命。
现有的大部分车辆都会在不同的环境中运行，如雨天、雾天、晴天等，因此，车身外的涂层的防水性能非常重要。
发明内容
为了提高粉末涂料的附着力，提高涂料的防水性能，本发明提供了一种附着力好的防水汽车粉末涂料。
为达到上述目的，附着力好的防水汽车粉末涂料，按重量份数计，由35-40份的聚酰胺树脂、1-2份环氧树脂、10-20份改性松香树脂、10-20份热塑性SEBS丁苯橡胶、5-10份沥青、10-15份钛白粉、2-5份金红石粉、5-8份有机硅、2-3份固化剂、0.5-2份稳定剂和2-3份流平剂组成。
进一步的，所述的固化剂为羟烷基酰胺。
进一步的，所述的稳定剂为硬脂酸锌。
进一步的，所述的流平剂选用道康宁公司的产品，型号为5T。
本发明的有益效果是：加入有机硅既能降低环氧树脂内应力，又能改善环氧树脂韧性、耐高温性等性能。在形成粉末涂料的过程中，聚酰胺树脂和改性松香树脂的熔点低，在有机硅和环氧树脂的作用下，使粉末涂料的颗粒接近球状，这样，就能提高漆膜的附着力，漆膜不容易掉落，使用寿命长。同时，聚酰胺树脂和热塑性SEBS丁苯橡胶有很好的交联作用，在有机硅的作用下，使得形成的粉末涂料细度均匀，而且细度较小，因此，喷涂到基材上后效果好。热塑性SEBS丁苯橡胶与沥青的相互协同作用，使得涂层的耐老化性、可塑性、弹性、耐热性和耐水性好。
具体实施方式
下面结合具体实施方式对本发明进行进一步详细说明。
附着力好的防水汽车粉末涂料，按重量份数计，由35-40份的聚酰胺树脂、1-2份环氧树脂、10-20份改性松香树脂、10-20份热塑性SEBS丁苯橡胶、5-10份沥青、10-15份钛白粉、2-5份金红石粉、5-8份有机硅、2-3份固化剂、0.5-2份稳定剂和2-3份流平剂组成。所述的固化剂为羟烷基酰胺。所述的稳定剂为硬脂酸锌。所述的流平剂选用道康宁公司的产品，型号为5T。
实施例1。
附着力好的防水粉末涂料的制备方法，包括以下步骤，
（1）按重量份数计，将35份的聚酰胺树脂、1份环氧树脂、10份热塑性SEBS丁苯橡胶、5份沥青、5份有机硅、2份固化剂和2份流平剂混合均匀得到混料A。
（2）将10份改性松香树脂、10份钛白粉、2份金红石粉、0.5份稳定剂混合均匀得到混料B。
（3）采用双螺杆挤出机在前端采用60℃ -70℃对混料A 挤压，将挤出机在中段将温度提高到100℃ -120℃后加入混料B，并挤压成型，通过粉碎后得到粉末涂料。
实施例2。
附着力好的防水粉末涂料的制备方法，包括以下步骤，
（1）按重量份数计，将40份的聚酰胺树脂、2份环氧树脂、20份热塑性SEBS丁苯橡胶、10份沥青、8份有机硅、3份固化剂和3份流平剂混合均匀得到混料A。
（2）将20份改性松香树脂、15份钛白粉、5份金红石粉、2份稳定剂混合均匀得到混料B。
（3）采用双螺杆挤出机在前端采用60℃ -70℃对混料A 挤压，将挤出机在中段将温度提高到100℃ -120℃后加入混料B，并挤压成型，通过粉碎后得到粉末涂料。
实施例3。
附着力好的防水粉末涂料的制备方法，包括以下步骤，
（1）按重量份数计，将37份的聚酰胺树脂、1.5份环氧树脂、15份热塑性SEBS丁苯橡胶、7份沥青、6份有机硅、2.6份固化剂和2.4份流平剂混合均匀得到混料A。
（2）将15份改性松香树脂、12.5份钛白粉、3.5份金红石粉、1.5份稳定剂混合均匀得到混料B。
（3）采用双螺杆挤出机在前端采用60℃ -70℃对混料A 挤压，将挤出机在中段将温度提高到100℃ -120℃后加入混料B，并挤压成型，通过粉碎后得到粉末涂料。
本发明的粉末涂料，加入有机硅既能降低环氧树脂内应力，又能改善环氧树脂韧性、耐高温性等性能。在形成粉末涂料的过程中，聚酰胺树脂和改性松香树脂的熔点低，在有机硅和环氧树脂的作用下，使粉末涂料的颗粒接近球状，这样，就能提高漆膜的附着力，漆膜不容易掉落，使用寿命长。同时，聚酰胺树脂和热塑性SEBS丁苯橡胶有很好的交联作用，在有机硅的作用下，使得形成的粉末涂料细度均匀，而且细度较小，因此，喷涂到基材上后效果好。热塑性SEBS丁苯橡胶与沥青的相互协同作用，使得涂层的耐老化性、可塑性、弹性、耐热性和耐水性好。

Claims (4)

1.附着力好的防水汽车粉末涂料，其特征在于：按重量份数计，由35-40份的聚酰胺树脂、1-2份环氧树脂、10-20份改性松香树脂、10-20份热塑性SEBS丁苯橡胶、5-10份沥青、10-15份钛白粉、2-5份金红石粉、5-8份有机硅、2-3份固化剂、0.5-2份稳定剂和2-3份流平剂组成。
2.根据权利要求1所述的附着力好的防水汽车粉末涂料，其特征在于：所述的固化剂为羟烷基酰胺。
3.根据权利要求1所述的附着力好的防水汽车粉末涂料，其特征在于：所述的稳定剂为硬脂酸锌。
4.根据权利要求1所述的附着力好的防水汽车粉末涂料，其特征在于：所述的流平剂选用道康宁公司的产品，型号为5T。
CN201410733105.8A 2014-12-07 2014-12-07 附着力好的防水汽车粉末涂料 Active CN104403556B (zh)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112029408A (zh) * 2020-09-23 2020-12-04 张学明 一种环保防水涂料及其制备方法
CN112680053A (zh) * 2020-12-22 2021-04-20 姚雪侠 一种环保建筑防水涂料及其制备方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409999A (en) * 1989-08-11 1995-04-25 Elf Atochem S.A. Polyamide and/or polyetheresteramide thermoplastic powder coating compositions comprising epoxy/sulfonamide resins
CN1483778A (zh) * 2003-07-01 2004-03-24 郑州大学 金属防腐耐磨粉末涂料
CN1632020A (zh) * 2003-12-24 2005-06-29 葛祥利 树脂涂料
CN101223250A (zh) * 2005-07-11 2008-07-16 帝斯曼知识产权资产管理有限公司 粉末涂料组合物
CN101993659A (zh) * 2009-08-28 2011-03-30 张轶 一种防水涂料的制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5409999A (en) * 1989-08-11 1995-04-25 Elf Atochem S.A. Polyamide and/or polyetheresteramide thermoplastic powder coating compositions comprising epoxy/sulfonamide resins
CN1483778A (zh) * 2003-07-01 2004-03-24 郑州大学 金属防腐耐磨粉末涂料
CN1632020A (zh) * 2003-12-24 2005-06-29 葛祥利 树脂涂料
CN101223250A (zh) * 2005-07-11 2008-07-16 帝斯曼知识产权资产管理有限公司 粉末涂料组合物
CN101993659A (zh) * 2009-08-28 2011-03-30 张轶 一种防水涂料的制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112029408A (zh) * 2020-09-23 2020-12-04 张学明 一种环保防水涂料及其制备方法
CN112680053A (zh) * 2020-12-22 2021-04-20 姚雪侠 一种环保建筑防水涂料及其制备方法

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