CN104946116A - 一种自修复型聚氨酯哑光涂料及其制备方法 - Google Patents

一种自修复型聚氨酯哑光涂料及其制备方法 Download PDF

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CN104946116A
CN104946116A CN201410524241.6A CN201410524241A CN104946116A CN 104946116 A CN104946116 A CN 104946116A CN 201410524241 A CN201410524241 A CN 201410524241A CN 104946116 A CN104946116 A CN 104946116A
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刘甲明
冯玉涛
李煜亮
刘亚平
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Dongguan Biyi New Material Technology Co., Ltd
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Abstract

一种自修复型聚氨酯哑光涂料，各组分及其重量百分比为：微支链聚酯多元醇、耐磨功能浆料、气相二氧化硅消光粉、聚醚改性有机硅氧烷、防沉浆、金属盐催化剂、增硬耐磨剂、聚氨酯型高分子分散剂、醋酸乙酯、醋酸丁酯、二丙酮醇。本发明制成的自修复型聚氨酯哑光涂料与聚异氰酸酯形成的涂膜在诸多性能方面有较大的提升，而且其具有的自修复功能更是传统哑光型涂料所不具备，可广泛应用于3C电子、汽车内饰、运动器材等相关领域。

Description

一种自修复型聚氨酯哑光涂料及其制备方法
技术领域
本发明涉及涂料技术领域，特别是一种自修复型聚氨酯哑光涂料及其制备方法。
背景技术
涂料的光泽通常可以根据其干膜对光线在特定角度反射情况来区分，从低到高通常可以分为：哑光、柔光、丝光、半光及高光等。传统哑光涂料与聚异氰酸酯反应成涂膜后，涂膜不仅耐刮性差，质感差，而且其耐水、耐候、耐化、可重涂性、弹性及拉伸、耐磨、自修复能力等诸多性能均有待提高。
因此，现有技术有待于改善。
发明内容
本发明的目的是提供一种以微支链聚酯多元醇为载体，以聚氨酯级溶剂如脂类、酮类等为分散介质，辅以催化剂、防沉剂、耐磨功能浆料、消光剂、润湿流平剂等制成的自修复型聚氨酯哑光涂料。
本发明的另一目的在于提供一种上述自修复型聚氨酯哑光涂料的制备方法。
为实现上述目的，本发明所采用的技术方案是：
一种自修复型聚氨酯哑光涂料，各组分及其重量百分比为：
微支链聚酯多元醇                       30.0-35.0%
耐磨功能浆料                             10.0-15.0%
气相二氧化硅消光粉                    5.0-8.0%
聚醚改性有机硅氧烷                     0.2-0.5%
防沉浆                                       2.0-4.0%
金属盐催化剂                              0.2-0.6%
增硬耐磨剂                                 1.0-3.0%
聚氨酯型高分子分散剂                0.5-2.0%
醋酸乙酯                                   10.0-25.0%
醋酸丁酯                                   7.0-15.0%
二丙酮醇                                    8.0-20.0%
一种上述自修复型聚氨酯哑光涂料的制备方法，包括以下步骤：
（1）先将醋酸丁酯、醋酸乙酯、二丙酮醇进行预混合后制成混合溶剂；
（2）将微支链聚酯多元醇、聚氨酯型高分子分散剂和50%上述混合溶剂进行预混合后投入涂料分散机进行搅拌，在搅拌过程中投入气相二氧化硅消光粉与耐磨功能浆料，然后以1200-1500r/min的转速高速分散20-30min;
（3）投入聚醚改性有机硅氧烷 、金属盐催化剂、增硬耐磨剂和防沉浆，以600-800r/min的转速中速分散5-10min;
（4）投入剩余的50%的混合溶剂，以300-500r/min的转速低速分散5-10min;检测光泽度及表面细度，合格后用200-300目滤网过滤包装。
与现有技术相比，本发明所具有的优点是：
1、该产品与聚异氰酸酯反应成膜后，涂膜具有优异的耐水、耐候、耐化性能；施工性能优异，干燥速度快，表观效果好；
2、涂膜具有极佳手感，弥补传统哑光涂料不抗刮、质感差的不足；
3、涂膜干燥后，具有极佳弹性及拉伸性能，并且能够在短时间内产生自助修复功能，涂膜的耐刮伤性能、耐磨耗性能成倍提高，该性能是传统哑光型涂料所不具备的重要表现；
4、涂膜具备可重涂性。
具体实施方式
下面给出实施例对本发明作进一步的详细说明：
实例1：
微支链聚酯多元醇                       30.0%
耐磨功能浆料                             15.0%
气相二氧化硅消光粉                    5.0%
聚醚改性有机硅氧烷                    0.2%
防沉浆                                      4.0%
金属盐催化剂                             0.2%
增硬耐磨剂                                3.0%
聚氨酯型高分子分散剂               0.5%
醋酸乙酯                                  10.0%
醋酸丁酯                                  15.0%
二丙酮醇                                  17.1%
实例2：
微支链聚酯多元醇                     31.0%
耐磨功能浆料                           14.0%
气相二氧化硅消光粉               5.5%
聚醚改性有机硅氧烷                0.3%
防沉浆                                     3.5%
金属盐催化剂                            0.3%
增硬耐磨剂                              2.5%
聚氨酯型高分子分散剂           0.5%
醋酸乙酯                                13.0%
醋酸丁酯                                14.0%
二丙酮醇                                15.4%
实例3：
微支链聚酯多元醇                   32.0%
耐磨功能浆料                          13.0%
气相二氧化硅消光粉               6.0%
聚醚改性有机硅氧烷               0.3%
防沉浆                                    3.0%
金属盐催化剂                          0.4%
增硬耐磨剂                              2.0%
聚氨酯型高分子分散剂          1.0%
醋酸乙酯                                15.0%
醋酸丁酯                                13.0%
二丙酮醇                                14.3%
实例4：
微支链聚酯多元醇                   33.0%
耐磨功能浆料                          12.0%
气相二氧化硅消光粉             6.5%
聚醚改性有机硅氧烷             0.4%
防沉浆                                   2.5%
金属盐催化剂                          0.5%
增硬耐磨剂                             1.5%
聚氨酯型高分子分散剂          1.0%
醋酸乙酯                                18.0%
醋酸丁酯                                11.0%
二丙酮醇                                13.6%
实例5：
微支链聚酯多元醇                    34.0%
耐磨功能浆料                           11.0%
气相二氧化硅消光粉                 7.0%
聚醚改性有机硅氧烷                0.4%
防沉浆                                     2.0%
金属盐催化剂                             0.5%
增硬耐磨剂                               1.0%
聚氨酯型高分子分散剂             1.5%
醋酸乙酯                                  22.0%
醋酸丁酯                                  10.0%
二丙酮醇                                 10.6%
实例6：
微支链聚酯多元醇                   35.0%
耐磨功能浆料                           10.0%
气相二氧化硅消光粉                 8.0%
聚醚改性有机硅氧烷                 0.5%
防沉浆                                     2.0%
金属盐催化剂                            0.6%
增硬耐磨剂                              1.0%
聚氨酯型高分子分散剂            2.0%
醋酸乙酯                                25.0%
醋酸丁酯                                7.9%
二丙酮醇                                8.0%
上述实例均按下述方法制备，制备方如下：
（1）先将上述实例中对应比例之醋酸丁酯、醋酸乙酯、二丙酮醇进行预混合后制成混合溶剂；
（2）将上述实例中对应比例之微支链聚酯多元醇、聚氨酯型高分子分散剂和50%上述混合溶剂进行预混合后投入涂料分散机进行搅拌，在搅拌过程中投入气相二氧化硅消光粉与耐磨功能浆料，然后以1200-1500r/min的转速高速分散  20-30min;
（3）投入上述实例中对应比例之聚醚改性有机硅氧烷 、金属盐催化剂、增硬耐磨剂和防沉浆，以600-800r/min的转速中速分散5-10min;
（4）投入剩余的上述实例中对应比例之50%的混合溶剂，以300-500r/min的转速低速分散5-10min;检测光泽度及表面细度，合格后用200-300目滤网过滤包装。
综上所述，本发明制成的自修复型聚氨酯哑光涂料与聚异氰酸酯形成的涂膜在诸多性能方面有较大的提升，而且其具有的自修复功能更是传统哑光型涂料所不具备，可广泛应用于3C电子、汽车内饰、运动器材等相关领域。

Claims (2)

1.一种自修复型聚氨酯哑光涂料，其特征在于，各组分及其重量百分比为：
微支链聚酯多元醇                       30.0-35.0%
耐磨功能浆料                           10.0-15.0%
气相二氧化硅消光粉                      5.0-8.0%
聚醚改性有机硅氧烷                      0.2-0.5%
防沉浆                                  2.0-4.0%
金属盐催化剂                            0.2-0.6%
增硬耐磨剂                              1.0-3.0%
聚氨酯型高分子分散剂                    0.5-2.0%
醋酸乙酯                                10.0-25.0%
醋酸丁酯                                7.0-15.0%
二丙酮醇                                8.0-20.0%  。
2.一种如权利要求1所述的自修复型聚氨酯哑光涂料的制备方法，其特征在于，包括以下步骤：
（1）先将醋酸丁酯、醋酸乙酯、二丙酮醇进行预混合后制成混合溶剂；
（2）将微支链聚酯多元醇、聚氨酯型高分子分散剂和50%上述混合溶剂进行预混合后投入涂料分散机进行搅拌，在搅拌过程中投入气相二氧化硅消光粉与耐磨功能浆料，然后以1200-1500r/min的转速高速分散20-30min;
（3）投入聚醚改性有机硅氧烷 、金属盐催化剂、增硬耐磨剂和防沉浆，以600-800r/min的转速中速分散5-10min;
（4）投入剩余的50%的混合溶剂，以300-500r/min的转速低速分散5-10min;检测光泽度及表面细度，合格后用200-300目滤网过滤包装。
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CN105713497A (zh) * 2015-12-18 2016-06-29 广州源辉化工有限公司 一种用于移动终端的即刻修复涂料及其喷涂方法
CN106117486A (zh) * 2016-06-27 2016-11-16 青岛科技大学 含酰腙键的二元醇、含酰腙键和双硫键的二元醇、自修复聚氨酯弹性体及其制备方法
CN109401381A (zh) * 2018-11-14 2019-03-01 安徽兆拓新能源科技有限公司 一种太阳能面板支架保护涂层的制备方法
CN109735249A (zh) * 2018-12-27 2019-05-10 合肥乐凯科技产业有限公司 一种哑光漆面保护膜
CN115044288A (zh) * 2022-06-23 2022-09-13 常州回天新材料有限公司 一种白色背板空气层涂料的制备方法

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CN105713497A (zh) * 2015-12-18 2016-06-29 广州源辉化工有限公司 一种用于移动终端的即刻修复涂料及其喷涂方法
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CN109401381A (zh) * 2018-11-14 2019-03-01 安徽兆拓新能源科技有限公司 一种太阳能面板支架保护涂层的制备方法
CN109735249A (zh) * 2018-12-27 2019-05-10 合肥乐凯科技产业有限公司 一种哑光漆面保护膜
CN115044288A (zh) * 2022-06-23 2022-09-13 常州回天新材料有限公司 一种白色背板空气层涂料的制备方法

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