CN109694627A - 一种车辆用水性阻尼涂料 - Google Patents

一种车辆用水性阻尼涂料 Download PDF

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CN109694627A
CN109694627A CN201710988254.2A CN201710988254A CN109694627A CN 109694627 A CN109694627 A CN 109694627A CN 201710988254 A CN201710988254 A CN 201710988254A CN 109694627 A CN109694627 A CN 109694627A
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陈凯南
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Abstract

一种车辆用水性阻尼涂料，其特征在于，组成还有加热膨胀型有机中空充填材料和有机发泡剂，用量按重量计分别占水性阻尼涂料总量的0.3％～5％和0.1％～5％；所述的乳液基料，是玻璃化温度为14℃、20℃、37℃、42℃、50℃、75℃的苯丙乳液1、苯丙乳液2、苯丙乳液3、苯丙乳液4、丁苯乳液、环氧树脂乳液中的2～3种；所述的加热膨胀型有机中空充填材料，是聚二氯乙烯纤维，聚丙烯腈纤维，聚酯纤维或聚偏二氯乙烯纤维；所述的有机发泡剂，是偶氮二异丁腈，偶氮二甲酰胺或二亚硝基次戊基四胺。本发明的水系涂料，可以防止产生皲裂，缝隙，针眼，膨胀等涂膜缺陷。

Description

一种车辆用水性阻尼涂料
技术领域
本发明属于化工产品和涂料制备领域，特别涉及对各种车辆和电机产品等振 动部位进行涂覆来抑制振动减小车内噪音的厚浆涂料。
背景技术
目前在汽车的地板，前围，后备箱，顶棚，车门位置，为赋予钢板以减振性能，使用沥青系列或他们的复合系列板类等减振材料。在地板等部位，根据形状 进行冲压，成型后的减振材料在汽车喷涂线上进行放置，使用沥青系列压敏型粘 合剂进行定位，在通过加热干燥炉时，能够和钢板进行粘接。但是，沥青在冬季 容易破碎，车前围等立面的减振材料环保性差，有气味。水性阻尼涂料具有综合 性能好，施工方便，环保性好等优点。采用水基高分子树脂为基料，加入无机 填料，毒性小，减少化工污染。使用提高阻尼系数的各种无机原料，可以提高 阻尼性。在工业上采用机械与喷涂方式，提高自动化能力。
与本发明接近的现有技术是公开号为CN101891990A、名称为“一种水性隔音阻尼涂料及其制备方法”的专利申请。水性隔音阻尼涂料各原料重量配比为： 聚合物乳液15-35份；无机填料35-55份；粉末阻燃剂10-20份；助剂2-5份； 去离子水10-20份。所描述的涂料具有优异的减振降噪效果，主要用于车辆车厢 地板、侧墙和车顶内部的涂装，能起到良好的抑制振动和降低噪声作用。
发明内容
本发明要解决的技术问题是，提供一种水性阻尼涂料，具有微孔结构，涂料由两种乳液组成，然后加入各种无机填料，经过搅拌、过滤制得厚浆涂料， 20～60℃阻尼值在0.06～0.15，主要是使用在车辆的地板，前围，后备箱，车门、 顶棚等部位。
一种车辆用水性阻尼涂料，组成中有乳液基料、无机质填充剂、成膜助剂、 增稠剂和水，乳液基料、无机质填充剂、成膜助剂、增稠剂的用量按重量计分别 占水性阻尼涂料总量的34～48％、35～50％、0～5％、3％～4％，水为余量；其特 征在于，组成还有加热膨胀型有机中空充填材料和有机发泡剂，用量按重量计分 别占水性阻尼涂料总量的0.3％～5％和0.1％～5％；所述的乳液基料，是玻璃化 温度为14℃、20℃、37℃、42℃、50℃、75℃的苯丙乳液1、苯丙乳液2、苯 丙乳液3、苯丙乳液4、丁苯乳液、环氧树脂乳液中的2～3种；所述的加热膨胀 型有机中空充填材料，是聚二氯乙烯纤维，聚丙烯腈纤维，聚酯纤维或聚偏二氯乙烯纤维；所述的有机发泡剂，是偶氮二异丁腈，偶氮二甲酰胺或二亚硝基次戊 基四胺。
所述的乳液基料，是玻璃化温度Tg高的乳液与玻璃化温度Tg低的乳液配合使用，二者重量比例可以在1∶1～2.5；所述的有机发泡剂，可以与发泡助剂 尿素共同使用，尿素与有机发泡剂用量的重量比例是1∶0.5～2。
所述的乳液基料，进一步可以是，苯丙乳液1和苯丙乳液3和环氧树脂乳液复合、苯丙乳液2和丁苯乳液复合、苯丙乳液2和苯丙乳液4复合或者苯丙 乳液1和苯丙乳液4复合在一起使用。
加热膨胀型有机中空充填材料优选的用量按重量计占水性阻尼涂料总量的0.5％～1％；有机发泡剂优选的用量按重量计占水性阻尼涂料总量的0.1％～3％
本发明水性阻尼涂料由2～3种乳液组成，然后加入各种填料，经过搅拌、过滤制得厚浆涂料。即，将上述所记的各种混合物在溶解罐、密炼机、行星式搅 拌器、开炼机、真空搅拌机等众所周知的混合分散机进行分散混合后，经过真空 脱泡工序制造而成。
本发明的水系涂料，可以防止产生皲裂，缝隙，针眼，膨胀等涂膜缺陷，并 可以一次涂布成膜厚度为3～6mm，和现在在汽车上使用的板类减振效果可以满 足或是超越。这样还可以在不能粘贴减振材料的部位进行涂覆做减振处理。如果 由电脑控制涂装机械手的话，可以做到省人工，无人化生产。本发明可以做到低 比重，单位面积上重量减轻，就可以使得汽车的轻型化，避免沥青板在干燥时产 生的有毒气体，本发明对于地球环境和作业环境来说都无污染。
具体实施方式
实施例1
苯丙乳液1为30％，苯丙乳液3为10％，环氧树脂乳液8％，碳酸钙20％，云母15％，加热膨胀型有机中空充填材料聚丙烯腈纤维1％，成膜助剂5％，发 泡剂偶氮二异丁腈0.1％，增稠剂4％，水为6.9％，以上的原料在星型搅拌器中 进行混合分散，再真空脱气。制得车辆用水性阻尼涂料1。
实施例2
苯丙乳液2为20％，丁苯乳液为14％，滑石粉12％，云母10％，硅藻土15％，针状粉10％，加热膨胀型有机中空充填材料聚酯纤维1％，有机发泡剂为 二亚硝基次戊基四胺3％，成膜助剂2％，增稠剂3％，水为10％，以上的原料 在行星式搅拌器中进行混合分散30分钟，再真空脱气，过滤。制得车辆用水性 阻尼涂料2。
实施例3
苯丙乳液2为25％，苯丙乳液4为15％，石膏14％，硅藻土8％，云母15％，玻璃微珠3％，加热膨胀型有机中空充填材料聚丙烯腈纤维为0.5％，有机发泡 剂为偶氮二异丁腈2％，增稠剂3％，水为14.5％，以上的原料在搅拌行星式搅 拌器中进行混合分散30分钟，再真空脱气，过滤。制得车辆用水性阻尼涂料3。

Claims (5)

1.一种车辆用水性阻尼涂料，其特征在于，组成中有乳液基料、无机质填充剂、成膜助剂、 增稠剂和水，乳液基料、无机质填充剂、成膜助剂、增稠剂的用量按重量计分别 占水性阻尼涂料总量的34～48％、35～50％、0～5％、3％～4％，水为余量；其特 征在于，组成还有加热膨胀型有机中空充填材料和有机发泡剂，用量按重量计分 别占水性阻尼涂料总量的0.3％～5％和0.1％～5％；所述的乳液基料，是玻璃化 温度为14℃、20℃、37℃、42℃、50℃、75℃的苯丙乳液1、苯丙乳液2、苯 丙乳液3、苯丙乳液4、丁苯乳液、环氧树脂乳液中的2～3种；所述的加热膨胀 型有机中空充填材料，是聚二氯乙烯纤维，聚丙烯腈纤维，聚酯纤维或聚偏二氯 乙烯纤维；所述的有机发泡剂，是偶氮二异丁腈，偶氮二甲酰胺或二亚硝基次戊 基四胺。
2.根据权利要求1所述的一种车辆用水性阻尼涂料，其特征在于，所述的乳液基料，是玻璃化温度Tg高的乳液与玻璃化温度Tg低的乳液配 合使用，二者重量比例可以在1∶1～2.5；所述的有机发泡剂，可以与发泡助剂 尿素共同使用，尿素与有机发泡剂用量的重量比例是1∶0.5～2。
3.根据权利要求1所述的一种车辆用水性阻尼涂料，其特征在于，所述的乳液基料，进一步可以是，苯丙乳液1和苯丙乳液3和环氧树脂乳 液复合、苯丙乳液2和丁苯乳液复合、苯丙乳液2和苯丙乳液4复合或者苯丙 乳液1和苯丙乳液4复合在一起使用。
4.根据权利要求1所述的一种车辆用水性阻尼涂料，其特征在于，加热膨胀型有机中空充填材料优选的用量按重量计占水性阻尼涂料总量的 0.5％～1％；有机发泡剂优选的用量按重量计占水性阻尼涂料总量的0.1％～3％。
5.根据权利要求1所述的一种车辆用水性阻尼涂料，其特征在于，所述水性阻尼涂料由2～3种乳液组成，然后加入各种填料，经过搅拌、过滤制得厚浆涂料；即将上述所记的各种混合物在溶解罐、密炼机、行星式搅拌器、开炼机、真空搅拌机等众所周知的混合分散机进行分散混合后，经过真空脱泡工序制造而成。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115612365A (zh) * 2022-09-14 2023-01-17 广东珠江化工涂料有限公司 一种低温型阻尼涂料专用丙烯酸乳液和包含该乳液的水性阻尼涂料
CN116396686A (zh) * 2023-05-09 2023-07-07 广州励宝新材料科技有限公司 一种低反弹水性喷涂型砂纹漆及其制备方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115612365A (zh) * 2022-09-14 2023-01-17 广东珠江化工涂料有限公司 一种低温型阻尼涂料专用丙烯酸乳液和包含该乳液的水性阻尼涂料
CN116396686A (zh) * 2023-05-09 2023-07-07 广州励宝新材料科技有限公司 一种低反弹水性喷涂型砂纹漆及其制备方法

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