CN111440514A - 一种建筑铝扣板用粉末涂料及其制备方法 - Google Patents
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Abstract
一种建筑铝扣板用粉末涂料及其制备方法。本发明公开了一种建筑铝扣板用粉末涂料,按照质量百分比计算,包括如下组分:聚酯树脂30~40%;氟碳树脂30~40%;异氰尿酸三缩水甘油酯3~4%;异氰酸酯5~15%;异氟尔酮0.8~1.2%;安息香0.3~0.8%;银离子抗菌剂1~3%;钛白粉5~20%;颜料1~3%;无极填料5~8%;硫酸钡5~8%。本发明制备的粉末涂料具备防紫外线、防尘、防菌、防霉等特点。
Description
技术领域
本发明涉及特殊涂料技术领域,特别涉及建筑铝扣板用粉末涂料及其制备方法。
背景技术
建筑铝扣板的涂料与普通涂料相比,还需要具备防紫外线、防尘、防菌、防霉等特点,这样才能有效保护铝扣板的使用寿命,为人们的生命财产提供安全的保障。现有技术中,建筑铝扣板用涂料的种类繁多,由于涂料的配方和加工工艺的差别,因此建筑铝扣板用涂料的各方面性能也不尽相同。如何提高建筑铝扣板用涂料的相关性能,提高防紫外线、防尘、防菌、防霉性能是本领域内急需解决的技术问题。
发明内容
本发明的目的是提供一种建筑铝扣板用粉末涂料及其制备方法。
本发明的上述技术目的是通过以下技术方案得以实现的:
一种建筑铝扣板用粉末涂料,其特征在于,按照质量百分比计算,包括如下组分:
优选地,上述聚酯树脂采用耐候型聚酯树脂。
优选地,上述无机填料为硅微粉、纳米二氧化硅、α-氧化铝或云母中的任意一种或两种的混合物。
优选地,按照质量百分比计算,其组分还包括偏苯三酸酐1~5%。
优选地,上述钛白粉能够用粘米粉代替。
优选地,上述钛白粉能够用钛白粉与粘米粉的混合物来代替,钛白粉与粘米粉的混合质量比为1:1~3。
一种建筑铝扣板用粉末涂料的制备方法,包括如下操作步骤:
S1.于室温下,将耐候型聚酯树脂、耐候型聚酯树脂、异氰尿酸三缩水甘油酯、异氰酸酯、异氟尔酮、安息香、无机填料、硫酸钡依次加入混合釜内,机械搅拌1-2h;
S2.于室温下,将钛白粉和颜料加入S1的混合釜内,机械搅拌1-2h后;
S3.于90~110℃下,将S2得到的混合物经过高温熔融啮合挤出,经冷却粉碎后得到所述高压绝缘阻燃粉末涂料。
优选地,上述步骤S2中的钛白粉用粘米粉或者粘米粉与钛白粉的混合物代替。
综上所述,本发明具有以下有益效果:
1.粘米粉是大米磨成的粉末,其中不但含有淀粉,还含有丰富的维生素和硫胺素,能够与无机填料结合形成膜结构,同时粘米粉中的淀粉能够起到粘结剂和固化剂的作用,提高涂料的致密性和抗冲击性能,且粘米粉中的膳食纤维形成空间的网状结构,捕获氮化硅后进一步提高涂料的附着力和机械强度;
2.配方中添加银离子抗菌剂,有效抑制大肠杆菌,葡萄球菌等细菌的产生。
3.抗菌及涂膜的低表面张力也可以有效组织霉菌在涂膜表面的滋生。
4.通过氟碳树脂及异氟尔酮来降低涂膜表面张力(国标耐沾污性能测试)。
5.配方主体采用耐候型聚酯树脂和氟碳树脂进行匹配,可以提高涂料的防紫外线的功能。
具体实施方式
实施例1:
一种建筑铝扣板用粉末涂料,包括如下组分:
1、于室温下,耐候型聚酯树脂30%;氟碳树脂30%;异氰尿酸三缩水甘油酯4%;异氰酸酯10%;异氟尔酮1%;安息香1%;银离子抗菌剂2%;无极填料5%;硫酸钡5%。依次加入混合釜内,机械搅拌1-2h;
2、于室温下,将钛白粉10%;颜料2%;加入步骤1的混合釜内,机械搅拌1-2h后;
3、于90~110℃下,将步骤2得到的混合物经过高温熔融啮合挤出,经冷却粉碎后得到建筑铝扣板用粉末涂料。
实施例2:
一种建筑铝扣板用粉末涂料,包括如下组分:
1、于室温下,耐候型聚酯树脂30%;氟碳树脂40%;异氰尿酸三缩水甘油酯3%;异氰酸酯10%;异氟尔酮1%;安息香1%;银离子抗菌剂2%;无极填料5%;硫酸钡5%。依次加入混合釜内,机械搅拌1-2h;
2、于室温下,将粘米粉10%;颜料2%;加入步骤1的混合釜内,机械搅拌1-2h后;
3、于90~110℃下,将步骤2得到的混合物经过高温熔融啮合挤出,经冷却粉碎后得到建筑铝扣板用粉末涂料。
实施例3:
一种建筑铝扣板用粉末涂料,包括如下组分:
1、于室温下,耐候型聚酯树脂35%;氟碳树脂34%;异氰尿酸三缩水甘油酯3%;异氰酸酯5%;异氟尔酮0.8%;安息香1%;银离子抗菌剂1.2%;无极填料5%;硫酸钡5%。依次加入混合釜内,机械搅拌1-2h;
2、于室温下,将粘米粉和钛白粉的混合物8%(粘米粉和钛白粉质量比为1:2);颜料2%;加入步骤1的混合釜内,机械搅拌1-2h后;
3、于90~110℃下,将步骤2得到的混合物经过高温熔融啮合挤出,经冷却粉碎后得到建筑铝扣板用粉末涂料。
实施例1、2、3得出的粉末涂料的性能测试见表1和表2:
检测因素与结果 | 常规产品 | 实施例1 | 实施例2 | 实施例3 |
照射时间 | ≥24H | ≥24H | ≥24H | ≥24H |
紫外线屏蔽率 | 75% | 96% | 98% | 99% |
老化失重量(克) | 0.02 | 0.01 | 0 | 0 |
表1
性能 | 测试方法 | 实施例1 | 实施例2 | 实施例3 |
电阻率/Ω | GB/T1410 | 10<sup>8</sup> | 10<sup>8</sup> | 10<sup>9</sup> |
建筑涂料涂层耐沾污性试验方法 | 20101957-T-609 | 合格 | 合格 | 合格 |
防霉 | GB/T1741-2007 | 0 | 0 | 0 |
表2
从上表可以得知,本申请提供的粉末涂料与现有技术相比,在防紫外线、防尘、防菌、防霉等方面均有大幅的提高,具有产业价值。
本具体实施例仅仅是对本发明的解释,其并不是对本发明的限制,本领域技术人员在阅读完本说明书后可以根据需要对本实施例做出没有创造性贡献的修改,但只要在本发明的权利要求范围内都受到专利法的保护。
Claims (8)
1. 一种建筑铝扣板用粉末涂料,其特征在于,按照质量百分比计算,包括如下组分:
聚酯树脂 30~40%
氟碳树脂 30~40%
异氰尿酸三缩水甘油酯 3~4%
异氰酸酯 5~15%
异氟尔酮 0.8~1.2%
安息香 0.3~0.8%
银离子抗菌剂 1~3%
钛白粉 5~20%
颜料 1~3%
无极填料 5~8%
硫酸钡 5~8%。
2.根据权利要求1所述的建筑铝扣板用粉末涂料,其特征在于,所述聚酯树脂采用耐候型聚酯树脂。
3.根据权利要求1所述的建筑铝扣板用粉末涂料,其特征在于,所述无机填料为硅微粉、纳米二氧化硅、α-氧化铝或云母中的任意一种或两种的混合物。
4.根据权利要求1所述的建筑铝扣板用粉末涂料,其特征在于,按照质量百分比计算,其组分还包括偏苯三酸酐1~5%。
5.根据权利要求1所述的建筑铝扣板用粉末涂料,其特征在于,所述钛白粉能够用粘米粉代替。
6.根据权利要求1所述的建筑铝扣板用粉末涂料,其特征在于,所述钛白粉能够用钛白粉与粘米粉的混合物来代替,钛白粉与粘米粉的混合质量比为1:1~3。
7.一种建筑铝扣板用粉末涂料的制备方法,其特征在于,包括如下操作步骤:
S1.于室温下,将耐候型聚酯树脂、耐候型聚酯树脂、异氰尿酸三缩水甘油酯、异氰酸酯、异氟尔酮、安息香、安息香、无机填料、硫酸钡依次加入混合釜内,机械搅拌1-2h;
S2.于室温下,将钛白粉和颜料加入S1的混合釜内,机械搅拌1-2h后;
S3.于90~110℃下,将S2得到的混合物经过高温熔融啮合挤出,经冷却粉碎后得到所述建筑铝扣板用粉末涂料。
8.根据权利要求7所述的一种建筑铝扣板用粉末涂料的制备方法,其特征在于,所述步骤S2中的钛白粉用粘米粉或者粘米粉与钛白粉的混合物代替。
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US20040082699A1 (en) * | 1997-02-03 | 2004-04-29 | Brown James F. | Hydrophobic coating compositions, articles coated with said compositions, and processes for manufacturing same |
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