CN107033693B - 汽车底盘装甲用阻尼涂料 - Google Patents

汽车底盘装甲用阻尼涂料 Download PDF

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CN107033693B
CN107033693B CN201610931337.3A CN201610931337A CN107033693B CN 107033693 B CN107033693 B CN 107033693B CN 201610931337 A CN201610931337 A CN 201610931337A CN 107033693 B CN107033693 B CN 107033693B
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孙天宝
谢金彪
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Liuzhou IRICO polymer materials Co., Ltd.
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Abstract

本发明提出了一种汽车底盘装甲用阻尼涂料,包括以下原料:丙烯酸防水乳液145~155份、防锈乳液45~55份、增塑性丙烯酸乳液95~105份、纯丙乳液145~155份、成膜助剂13~17份、功能填料478~522份、阻燃剂23~27份与粘合剂1.5~2.5份。该阻尼涂料对环境无污染,并且具有抗石击以及耐酸碱盐雾等性能。

Description

汽车底盘装甲用阻尼涂料
技术领域
本发明属于阻尼涂料技术领域,具体涉及一种汽车底盘装甲用阻尼涂料。
背景技术
目前国内外阻尼涂料种类较多,但从涂料的溶剂来分主要有溶剂型和水性型两种。前者大多含有机溶剂及沥青,毒性高、挥发性大、污染环境、施工性差,现已较少使用。后者阻尼涂料以水为溶剂,具有低毒低气味、低成本、易施工、环保性,是城轨车辆用阻尼涂料的首选产品。
底盘装甲可以有效防护路面砂石对车辆底盘的击打,防止轻微的拖底磨擦;预防酸、碱、盐对底盘铁板的腐蚀;防止底盘螺丝的松脱;降低行驶时噪音的传导,增加驾驶宁静感;阻止底盘铁板热传导,使驾驶室内冬暖夏凉。目前,市面上的底盘装甲主要为各种沥青类涂料,沥青涂料虽然具有优异的防腐性能,但是其缺点同样明显,主要表现在:(1)沥青在夏天车底温度高时容易滴落,散发出有害气体渗入车厢危害车主的健康;(2)沥青漆膜在后期易脆化变硬脱落,耐老化性能差,不耐汽油;(3)沥青材料易燃;(4)车辆高速行驶时,对碎石撞击声、风噪的隔声效果较差。
发明内容
本发明提出一种汽车底盘装甲用阻尼涂料,该阻尼涂料对环境无污染,并且具有抗石击以及耐酸碱盐雾等性能。
本发明的技术方案是这样实现的:
一种汽车底盘装甲用阻尼涂料,包括以下原料:
丙烯酸防水乳液145~155份、防锈乳液45~55份、增塑性丙烯酸乳液95~105份、纯丙乳液145~155份、成膜助剂13~17份、功能填料478~522份、阻燃剂23~27份与粘合剂1.5~2.5份。
进一步,按照重量份数计算,所述增塑性丙烯酸乳液包括以下原料:
丙烯酸丁酯150~170份、苯乙烯90~110份、甲基丙烯酸甲酯35~45份、丙烯酸α-乙基己酯112~122份、甲基丙烯酸10~14份、丙烯酸铵8~11份、丙烯腈13~17份、水390~450份、热分解引发剂1.2~2.2份、氧化-还原引发剂体系1.4~2.2份、pH调节剂3~4份、杀菌剂1~2份与乳化剂0.5~1份,其中,所述氧化-还原引发剂体系由无机还原剂0.6~1份和0.8~1.2份氧化剂组成。
进一步,所述热分解引发剂为过硫酸铵、过硫酸钾、过硫酸钠或者过氧化氢,氧化剂为叔丁基过氧化氢,无机还原剂为亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠、丙酮合亚硫酸氢钠、硫酸亚铁或甲醛次合硫酸氢钠。
进一步,所述复合阻燃剂由60~65份三氧化二锑与35~40份氢氧化铝组成。
进一步,所述增塑性丙烯酸乳液制备方法,包括以下步骤:
1)取330~350份水加入反应釜中,加入3~4份pH调节剂升温至78~82℃,用10~15份水将1~1.6份热分解引发剂溶解得到A溶液,将A溶液加入反应釜中,保持反应釜中液体温度在78~82℃;
2)称取丙烯酸丁酯150~170份、苯乙烯90~110份、甲基丙烯酸甲酯35~45份、丙烯酸α-乙基己酯112~122份、甲基丙烯酸10~14份、丙烯酸铵8~11份与丙烯腈13~17份进行混合得到单体混合物,称取15~25份水、乳化剂0.5~1份与0.2~0.6份热分解引发剂混合得到B溶液,将单体混合物滴加至步骤1)中的反应釜中,滴加持续时间为3.8~4.2h,当单体混合物滴加28~32min中后,滴加B溶液,单体混合物与B溶液滴加完毕后,保持反应釜中的温度为80℃~84℃,时间为0.8~1.2h;
3)先将步骤2)中保温完毕后的反应釜降温至63~67℃,称取氧化-还原引发剂体系1.4~2.2份,其中0.8~1.2份氧化剂加入5~15份水中分散得到分散溶液,无机还原剂0.6~1份与25~35份水混合得到C溶液,然后将分散液与C溶液同时加入反应釜中,用时为28~32min;
4)将杀菌剂1~2份用5~10份水溶解得到D溶液,将步骤3)反应完毕的反应釜降温至35~42℃,然后将D溶液用8~12min加入到反应釜中,搅拌,搅拌时间为8~12min,搅拌完毕后过120目滤网过滤杂质即可。
进一步,所述功能填料为云母粉、漂珠、滑石粉与硅石粉的混合物,其中云母粉95~105份、漂珠为23~27份、滑石粉70~80份与硅石粉290~310份。
进一步,所述成膜助剂为醇酯十二、乙二醇丁醚或者丙二醇苯醚。
进一步,所述粘合剂为碱性硅溶胶。
进一步,还包括防腐剂23~27份与色素4~6份。
进一步,所述色素为黑色浆,所述阻燃剂选自氢氧化铝、氢氧化镁、硼酸锌、磷酸铝与八钼酸铵的一种或任意几种的混合物。
本发明汽车底盘装甲用阻尼涂料的制备方法,包括以下步骤:
称取丙烯酸防水乳液145~155份、防锈乳液45~55份、纯丙乳液145~155份与增塑性丙烯酸乳液95~105份,转速为80r/min,时间10min左右,然后加入成膜助剂、阻燃剂与粘合剂,搅拌5min左右,然后加入功能性填料,搅拌60min左右即可。
在本发明的一个实施例中,增塑性丙烯酸乳液采用上述重量份原料制成具有以下优点:
该增塑性丙烯酸乳液pH值为7~8,固含量为52~54%,粘度(25℃3号转子60转)小于500厘泊,粒径180~200nm。先将单体混合物与热分解引发剂进行反应,然后再与热分解引发剂、乳化剂反应,这样有利于稳定粒径大小,制备出粒径180~200nm的乳液。
该增塑性丙烯酸乳液可以替代增塑剂使用。替代增塑剂可以解决因加入大量增塑剂导致制备阻尼涂料或一般水性涂料后期增稠的现象,是产品储存更稳定,同时解决了由于加入增塑剂后导致产品相关性能指标下降的技术难题、阻尼涂料喷涂过程中流挂的技术难题以及阻尼涂料由于加入增塑剂后喷涂、雾化性能下降的技术难题,增加了阻尼涂料的保水性。
本发明有益效果:
本发明的汽车底盘装甲用阻尼涂料解决目前市面上使用的溶剂型底盘装装甲阻尼涂料对环境污染、施工人员职业健康损坏的问题。其固含量为69%左右,具有良好的抗石击性能,ENISO20567抗石击为2,保护漆膜;冲击强度≥50kg*cm,无裂纹、脱落等现象。储存稳定性:易重新搅匀,稠度15~17mm。
本发明实施例中制备的汽车底盘装甲用阻尼涂料的主要性能指标如表1所示:
表1汽车底盘装甲用阻尼涂料的主要性能指标
具体实施方式
实施例1
一种汽车底盘装甲用阻尼涂料,包括以下原料:
丙烯酸防水乳液150份、防锈乳液50份、增塑性丙烯酸乳液100份、纯丙乳液150份、丙二醇苯醚15份、云母粉100份、漂珠为25份、滑石粉75份与硅石粉300份、八钼酸铵25份、防腐剂25份、黑色浆5份与碱性硅溶胶2份。
其中,丙烯酸防水乳液为德国巴斯夫防水乳液S 400F。
纯丙乳液的固含量为30±2%,pH为7~7.5,玻璃化温度-5℃,最低成膜温度0℃,粘度小于20cps。低固含量低粘度,可以增加填料加入量,降低成本。
防锈乳液为北京东联化工有限公司生产的DL-1065防锈乳液,其固含量为41±1%,pH为7~7.5,玻璃化温度20℃,最低成膜温度30℃,粘度小于20cps,具有高光泽、高硬度、流平好和耐溶剂性特点,对基材有优异的附着力,光泽高、耐候性好以及耐腐蚀性好。
按照重量份数计算,增塑性丙烯酸乳液包括以下原料:
丙烯酸丁酯150份、苯乙烯90份、甲基丙烯酸甲酯35份、丙烯酸α-乙基己酯112份、甲基丙烯酸14份、丙烯酸铵11份、丙烯腈17份、水390份、过硫酸钾1.2份、氧化-还原引发剂体系1.4份、pH调节剂3份、乳化剂0.5份与氯甲基异噻唑啉酮2份,其中,氧化-还原引发剂体系由无机还原剂0.6份和0.8份氧化剂组成,氧化剂为叔丁基过氧化氢,无机还原剂为丙酮合亚硫酸氢钠。
增塑性丙烯酸乳液的制备方法,包括以下步骤:
1)取330份水加入反应釜中,加入3份pH调节剂升温至78℃,用10份水将1份过硫酸钾溶解得到A溶液,将A溶液加入反应釜中,保持反应釜中液体温度在78~82℃;
2)称取丙烯酸丁酯150份、苯乙烯90份、甲基丙烯酸甲酯35份、丙烯酸α-乙基己酯112份、甲基丙烯酸14份、丙烯酸铵11份与丙烯腈17份进行混合得到单体混合物,称取15份水、乳化剂0.5份与0.2份过硫酸钾混合得到B溶液,将单体混合物滴加至步骤1)中的反应釜中,滴加持续时间为3.8h,当单体混合物滴加28min中后,滴加B溶液,单体混合物与B溶液滴加完毕后,保持反应釜中的温度为80℃,时间为0.8h;
3)先将步骤2)中保温完毕后的反应釜降温至67℃,称取氧化-还原引发剂体系1.4份,其中0.8份氧化剂加入5份水中分散得到分散溶液,无机还原剂0.6份与25份水混合得到C溶液,然后将分散液与C溶液同时加入反应釜中,用时为28min,即可。
4)将氯甲基异噻唑啉酮2份用5份水溶解得到D溶液,将步骤3)反应完毕的反应釜降温至42℃,然后将D溶液用8min加入到反应釜中,搅拌时间为8min,搅拌完毕后过120目滤网过滤杂质即可。
实施例2
一种汽车底盘装甲用阻尼涂料,包括以下原料:
丙烯酸防水乳液145份、防锈乳液45份、增塑性丙烯酸乳液105份、纯丙乳液145份、醇酯十二13份、云母粉95份、漂珠为23份、滑石粉70份与硅石粉290份、氢氧化镁27份、防腐剂23份、黑色浆4份与碱性硅溶胶1.5份。
其中,丙烯酸防水乳液为德国巴斯夫防水乳液S 400F。
防锈乳液为北京东联化工有限公司生产的DL-1065防锈乳液,其固含量为41±1%,pH为7~7.5,玻璃化温度20℃,最低成膜温度30℃,粘度小于20cps,具有高光泽、高硬度、流平好和耐溶剂性特点,对基材有优异的附着力,光泽高、耐候性好以及耐腐蚀性好。
纯丙乳液的固含量为30±2%,pH为7~7.5,玻璃化温度-5℃,最低成膜温度0℃,粘度小于20cps。低固含量低粘度,可以增加填料加入量,降低成本。
按照重量份数计算,增塑性丙烯酸乳液包括以下原料:
丙烯酸丁酯160份、苯乙烯100份、甲基丙烯酸甲酯40份、丙烯酸α-乙基己酯117份、甲基丙烯酸12份、丙烯酸铵9份、丙烯腈15份、水422份、过硫酸铵1.7份、氧化-还原引发剂体系1.8份、pH调节剂2.5份、乳化剂0.7份与氯甲基异噻唑啉酮1.5份。其中,氧化-还原引发剂体系由无机还原剂0.8份和1份氧化剂组成,氧化剂为叔丁基过氧化氢,无机还原剂为甲醛次合硫酸氢钠。
增塑性丙烯酸乳液的制备方法:
包括以下步骤:
1)取342份水加入反应釜中,加入2.5份pH调节剂升温至80℃,用12份水将1.3份过硫酸铵溶解得到A溶液,将A溶液加入反应釜中,保持反应釜中液体温度在80℃;
2)称取丙烯酸丁酯160份、苯乙烯100份、甲基丙烯酸甲酯40份、丙烯酸α-乙基己酯117份、甲基丙烯酸12份、丙烯酸铵9份与丙烯腈15份进行混合得到单体混合物,称取20份水、乳化剂0.7份与0.4份过硫酸铵混合得到B溶液,将单体混合物滴加至步骤1)中的反应釜中,滴加持续时间为4h,当单体混合物滴加30min中后,滴加B溶液,单体混合物与B溶液滴加完毕后,保持反应釜中的温度为82℃,时间为1h;
3)先将步骤2)中保温完毕后的反应釜降温至65℃,称取氧化-还原引发剂体系1.8份,其中1份氧化剂加入8份水中分散得到分散溶液,无机还原剂0.8份与30份水混合得到C溶液,然后将分散液与C溶液同时加入反应釜中,用时为30min;
4)将氯甲基异噻唑啉酮1.5份用10份水溶解得到D溶液,将步骤3)反应完毕的反应釜降温至40℃,然后将D溶液用10min加入到反应釜中,搅拌时间为8~12min,搅拌完毕后过120目滤网过滤杂质即可。
实施例3
一种汽车底盘装甲用阻尼涂料,包括以下原料:
丙烯酸防水乳液155份、防锈乳液55份、增塑性丙烯酸乳液95份、纯丙乳液155份、醇酯十二17份、云母粉105份、漂珠为27份、滑石粉80份与硅石粉310份、氢氧化镁23份、防腐剂27份、黑色浆6份与碱性硅溶胶2.5份。
其中,丙烯酸防水乳液为德国巴斯夫防水乳液S 400F。
纯丙乳液的固含量为30±2%,pH为7~7.5,玻璃化温度-5℃,最低成膜温度0℃,粘度小于20cps。低固含量低粘度,可以增加填料加入量,降低成本。
防锈乳液为北京东联化工有限公司生产的DL-1065防锈乳液,其固含量为41±1%,pH为7~7.5,玻璃化温度20℃,最低成膜温度30℃,粘度小于20cps,具有高光泽、高硬度、流平好和耐溶剂性特点,对基材有优异的附着力,光泽高、耐候性好以及耐腐蚀性好。
按照重量份数计算,增塑性丙烯酸乳液包括以下原料:
丙烯酸丁酯170份、苯乙烯110份、甲基丙烯酸甲酯45份、丙烯酸α-乙基己酯122份、甲基丙烯酸10份、丙烯酸铵8份、丙烯腈13份、水450份、过硫酸钠2.2份、氧化-还原引发剂体系2.2份、pH调节剂4份、乳化剂1份与氯甲基异噻唑啉酮1份,其中,氧化-还原引发剂体系由无机还原剂1份和1.2份氧化剂组成,氧化剂为叔丁基过氧化氢,无机还原剂为亚硫酸氢钠。
增塑性丙烯酸乳液的制备方法与实施例1中的增塑性丙烯酸乳液制备方法相同。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。

Claims (7)

1.一种汽车底盘装甲用阻尼涂料,其特征在于,包括以下原料:丙烯酸防水乳液145~155份、防锈乳液45~55份、增塑性丙烯酸乳液95~105份、纯丙乳液145~155份、成膜助剂13~17份、功能填料478~522份、阻燃剂23~27份与粘合剂1.5~2.5份;按照重量份数计算,所述增塑性丙烯酸乳液包括以下原料:丙烯酸丁酯150~170份、苯乙烯90~110份、甲基丙烯酸甲酯35~45份、丙烯酸α-乙基己酯112~122份、甲基丙烯酸10~14份、丙烯酸铵8~11份、丙烯腈13~17份、水390~450份、热分解引发剂1.2~2.2份、氧化-还原引发剂体系1.4~2.2份、pH调节剂3~4份、杀菌剂1~2份与乳化剂0.5~1份,其中,所述氧化-还原引发剂体系由无机还原剂0.6~1份和0.8~1.2份氧化剂组成;增塑性丙烯酸乳液制备方法,包括以下步骤:1)取330~350份水加入反应釜中,加入3~4份pH调节剂升温至78~82℃,用10~15份水将1~1.6份热分解引发剂溶解得到A溶液,将A溶液加入反应釜中,保持反应釜中液体温度在78~82℃;2)称取丙烯酸丁酯150~170份、苯乙烯90~110份、甲基丙烯酸甲酯35~45份、丙烯酸α-乙基己酯112~122份、甲基丙烯酸10~14份、丙烯酸铵8~11份与丙烯腈13~17份进行混合得到单体混合物,称取15~25份水、乳化剂0.5~1份与0.2~0.6份热分解引发剂混合得到B溶液,将单体混合物滴加至步骤1)中的反应釜中,滴加持续时间为3.8~4.2h,当单体混合物滴加28~32min后,滴加B溶液,单体混合物与B溶液滴加完毕后,保持反应釜中的温度为80℃~84℃,时间为0.8~1.2h;3)先将步骤2)中保温完毕后的反应釜降温至63~67℃,称取氧化-还原引发剂体系1.4~2.2份,其中0.8~1.2份氧化剂加入5~15份水中分散得到分散溶液,无机还原剂0.6~1份与25~35份水混合得到C溶液,然后将分散液与C溶液同时加入反应釜中,用时为28~32min;4)将杀菌剂1~2份用5~10份水溶解得到D溶液,将步骤3)反应完毕的反应釜降温至35~42℃,然后将D溶液用8~12min加入到反应釜中,搅拌,搅拌时间为8~12min,搅拌完毕后过120目滤网过滤杂质即可。
2.根据权利要求1所述的汽车底盘装甲用阻尼涂料,其特征在于,所述热分解引发剂为过硫酸铵、过硫酸钾、过硫酸钠或者过氧化氢,氧化剂为叔丁基过氧化氢,无机还原剂为亚硫酸钠、亚硫酸氢钠、焦亚硫酸钠、丙酮合亚硫酸氢钠、硫酸亚铁或甲醛次合硫酸氢钠。
3.根据权利要求1所述的汽车底盘装甲用阻尼涂料,其特征在于,所述功能填料为云母粉、漂珠、滑石粉与硅石粉的混合物,其中云母粉为95~105份、漂珠为23~27份、滑石粉为70~80份与硅石粉为290~310份。
4.根据权利要求1所述的汽车底盘装甲用阻尼涂料,其特征在于,所述成膜助剂为醇酯十二、乙二醇丁醚或者丙二醇苯醚。
5.根据权利要求1所述的汽车底盘装甲用阻尼涂料,其特征在于,所述粘合剂为碱性硅溶胶。
6.根据权利要求1所述的汽车底盘装甲用阻尼涂料,其特征在于,还包括防腐剂23~27份与色素4~6份。
7.根据权利要求6所述的汽车底盘装甲用阻尼涂料,其特征在于,所述色素为黑色浆,所述阻燃剂选自氢氧化铝、氢氧化镁、硼酸锌、磷酸铝与八钼酸铵的一种或任意几种的混合物。
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