CN114907736A - 一种高抗静电粉末涂料及其制备方法 - Google Patents
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Abstract
本发明公开了一种高抗静电粉末涂料及其制备方法。它由如下重量份数的原料制成:高分子树脂30‑80份、导电填料10‑30份,流平剂1‑3份,分散剂3‑5份,固化剂1‑3份。本发明制备的高抗静电粉末涂料,喷涂后具有良好的力学性能和抗静电性能,主料采用聚甲基丙烯酸正丁酯和聚环氧氯丙烷按的混合物,提高了材料的力学性能,钛酸钡和空心玻璃微珠复合导电填料,提高了材料的抗静电性能。
Description
技术领域
本发明属于涂料技术领域,具体涉及一种高抗静电粉末涂料及其制备方法。
背景技术
粉末涂料是以固体树脂和颜料、填料及助剂等组成的固体粉末状合成树脂涂料。和普通溶剂型涂料及水性涂料不同,它的分散介质不是溶剂和水,而是空气。它具有无溶剂污染,100%成膜,能耗低的特点。粉末涂料有热塑性和热固性两大类。热塑性粉末涂料的涂膜外观较差,与金属之间的附着力也差,所以在汽车涂装领域中应用极少,汽车涂装一般采用热固性粉末涂料,热固性粉末涂料是以热固性合成树脂为成膜物质,在烘干过程中树脂先熔融,再经化学交联后固化成平整坚硬的涂膜。该种涂料形成的漆膜外观和各种机械性能及耐腐蚀性均能满足汽车涂饰的要求。
粉末涂料喷涂后,一般抗静电性能较差,使得涂料应用到生活或者工业生产受到影响甚至危害,添加抗静电剂能改善上述缺陷,但往往使得材料的力学性能降低。
发明内容
本发明的目的在于提供一种高抗静电粉末涂料及其制备方法。
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂30-80份、导电填料10-30份,流平剂1-3份,分散剂3-5份,固化剂1-3份。
所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物。
所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
所述导电填料为导电钛白粉与胶体二氧化硅按照质量比1:1的混合物。
所述流平剂为甲基丙烯酸月桂酯、丙烯酸乳液、EFKA3034、聚丙烯酸酯中的一种或几种的组合。
所述分散剂为蓖麻油脂肪酸钠、马来酸酐、烯丙氧基羟丙基磺酸钠、甲基丙烯酸酯磷酸酯二醇、甲基丙烯磺酸钠中的一种或几种的组合。
所述固化剂为二乙烯三胺、三乙烯四胺、四乙烯五胺、聚酰胺651、聚酰胺300、异佛尔酮二胺、MDA、N-氨乙基哌嗪中的一种或几种的组合。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂30-80份、导电填料10-30份,流平剂1-3份,分散剂3-5份,固化剂1-3份,投入入高速混料罐中,200-400rpm转速下高速混料处理5-10min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为90-110℃,后段温度为120-140℃,转速为35-45hZ。
本发明的有益效果:本发明制备的高抗静电粉末涂料,喷涂后具有良好的力学性能和抗静电性能,主料采用聚甲基丙烯酸正丁酯和聚环氧氯丙烷按的混合物,提高了材料的力学性能,钛酸钡和空心玻璃微珠复合导电填料,提高了材料的抗静电性能。
具体实施方式
下面结合具体实施例对本发明做进一步说明。
实施例1
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份;所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物;所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份,投入入高速混料罐中,300rpm转速下高速混料处理8min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成;所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为100℃,后段温度为130℃,转速为40hZ。
实施例2
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂35份、导电填料12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份;所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物;所述导电填料为导电钛白粉与胶体二氧化硅按照质量比1:1的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂35份、导电填料12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份,投入入高速混料罐中,200rpm转速下高速混料处理10min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为90℃,后段温度为120℃,转速为35hZ。
实施例3
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂80份、导电填料30份,丙烯酸乳液3份,甲基丙烯酸酯磷酸酯二醇5份,N-氨乙基哌嗪3份;所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物;所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂80份、导电填料30份,丙烯酸乳液3份,甲基丙烯酸酯磷酸酯二醇5份,N-氨乙基哌嗪3份,投入入高速混料罐中,400rpm转速下高速混料处理5min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为110℃,后段温度为140℃,转速为45hZ。
对比例1
一种高抗静电粉末涂料,由如下重量份数的原料制成:聚甲基丙烯酸正丁酯50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份;所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取聚甲基丙烯酸正丁酯50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份,投入入高速混料罐中,300rpm转速下高速混料处理8min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成;所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为100℃,后段温度为130℃,转速为40hZ。
对比例2
一种高抗静电粉末涂料,由如下重量份数的原料制成:聚环氧氯丙烷50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份;所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取聚环氧氯丙烷50份、导电填料20份,EFKA3034 2份,甲基丙烯磺酸钠4份,三乙烯四胺2份,投入入高速混料罐中,300rpm转速下高速混料处理8min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成;所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为100℃,后段温度为130℃,转速为40hZ。
对比例3
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂35份、导电钛白粉12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份;所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂35份、导电钛白粉12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份,投入入高速混料罐中,200rpm转速下高速混料处理10min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为90℃,后段温度为120℃,转速为35hZ。
对比例4
一种高抗静电粉末涂料,由如下重量份数的原料制成:高分子树脂35份、胶体二氧化硅12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份;所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物。
所述高抗静电粉末涂料的制备方法,按照如下步骤进行:
(1)按照重量份数,取高分子树脂35份、胶体二氧化硅12份,甲基丙烯酸月桂酯1份,烯丙氧基羟丙基磺酸钠3份,异佛尔酮二胺1份,投入入高速混料罐中,200rpm转速下高速混料处理10min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为90℃,后段温度为120℃,转速为35hZ。
实验例1:
将150mm×70mm×0.5mm冷轧钢板除油、除锈、磷化处理后,采用高压静电喷枪喷板,喷凃静电压为80kv,输送气压0.6Mpa,固化温度为200℃、固化时间为10min。之后将试板取出冷却至室温,对涂膜进行性能测试(冲击测试kg/cm,测试标准GB/T1732-1993;电阻测试Ω·cm,测试标准GB/T16906-1997),测试结果见表1-2:
表1
注:*代表与实施例1比较P<0.05。
表2
注:*代表与实施例2比较P<0.05。
以上所述实施例仅表达了本发明的几种实施方式,其描述较为具体和详细,但并不能因此而理解为对发明专利范围的限制。应当指出的是,对于本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进,这些都属于本发明的保护范围。因此,本发明专利的保护范围应以所附权利要求为准。
Claims (9)
1.一种高抗静电粉末涂料,其特征在于,由如下重量份数的原料制成:高分子树脂30-80份、导电填料10-30份,流平剂1-3份,分散剂3-5份,固化剂1-3份。
2.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述高分子树脂为聚甲基丙烯酸正丁酯和聚环氧氯丙烷按照质量比1:1混合的混合物。
3.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述导电填料为钛酸钡和空心玻璃微珠按照质量比1:1的混合物。
4.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述导电填料为导电钛白粉与胶体二氧化硅按照质量比1:1的混合物。
5.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述流平剂为甲基丙烯酸月桂酯、丙烯酸乳液、EFKA3034、聚丙烯酸酯中的一种或几种的组合。
6.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述分散剂为蓖麻油脂肪酸钠、马来酸酐、烯丙氧基羟丙基磺酸钠、甲基丙烯酸酯磷酸酯二醇、甲基丙烯磺酸钠中的一种或几种的组合。
7.根据权利要求1所述高抗静电粉末涂料,其特征在于,所述固化剂为二乙烯三胺、三乙烯四胺、四乙烯五胺、聚酰胺651、聚酰胺300、异佛尔酮二胺、MDA、N-氨乙基哌嗪中的一种或几种的组合。
8.权利要求1所述高抗静电粉末涂料的制备方法,其特征在于,按照如下步骤进行:
(1)按照重量份数,取高分子树脂30-80份、导电填料10-30份,流平剂1-3份,分散剂3-5份,固化剂1-3份,投入入高速混料罐中,200-400rpm转速下高速混料处理5-10min;
(2)采用双螺杆挤出机将步骤(1)制备的混料进行熔融挤出处理;
(3)采用磨粉机对步骤(2)制备的物料进行粉碎处理,制成。
9.根据权利要求1所述高抗静电粉末涂料的制备方法,其特征在于,所述熔融挤出处理的条件为:双螺杆挤出机的前段温度为90-110℃,后段温度为120-140℃,转速为35-45hZ。
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