CN113999438A - 一种底盘用减震胶及其制备方法 - Google Patents

一种底盘用减震胶及其制备方法 Download PDF

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CN113999438A
CN113999438A CN202111108252.2A CN202111108252A CN113999438A CN 113999438 A CN113999438 A CN 113999438A CN 202111108252 A CN202111108252 A CN 202111108252A CN 113999438 A CN113999438 A CN 113999438A
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rubber
parts
cushion gum
chassis
chassis according
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唐腊梅
李剑鸣
邢向英
张奔
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Automobile Research and Development Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Automobile Research and Development Co Ltd
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Abstract

本申请提出一种底盘用减震胶及其制备方法，所述底盘减震胶由以下原料组成制得：烯烃橡胶100份、热塑性弹性体20～200份、粘度调节剂10～100份、填料0～100份、抗老化剂0.5～5份、固化剂0～8份、和发泡剂2～50份；本申请提供的减震胶，可以在汽车振动力的传递路径上注入，即在关键部件的连接处注入减震胶，该胶在一定工况下形成多孔状阻尼橡胶弹性体，使得原本部件之间硬连接的地方有发泡橡胶增加隔振阻尼，以此降低路径传递的力学激励，从而达到隔振效果，降低车内噪音及路噪压耳感，保证车辆的生产质量。

Description

一种底盘用减震胶及其制备方法
技术领域
本发明涉及底盘减震领域，尤其是涉及一种底盘用减震胶及其制备方法。
背景技术
汽车车辆行驶中，由于受到路面激励，会产生振动力，其中，振动力经由轮胎轮辋总成，并传递到底盘结构件，最后传递到车身部位，由于振动力的传动路径中，很多部件之间的连接为硬接触，连接点处没有相应的减震措施，因此，振动会使得一些连接点处出现异响，从而使得汽车车内出现噪音，并以此影响汽车质量。
如汽车的轮辋总成与大花键的连接处、TOP－MOUNT(即滑柱上端的安装连接结构)与SUBFRAME(副车架)的连接处、转向拉杆之间、转向节与减震器的连接处、hub零部件两侧、连接转向节与制动盘的连接处、车身与前副车架的连接处、及转向机与前副车架的连接处，这些点位的连接均为硬接触，是底盘中产生噪音的主要位置。
因而，有必要提供一种用于底盘振动力传递路径上的减震胶、并以此达到隔振、降低车内噪音的技术方案。
发明内容
本发明提出一种底盘用减震胶及其制备方法，其目的是为了提供一种用于底盘振动力传递路径上的减震胶、并以此达到隔振、降低车内噪音的技术方案。
本发明采用的技术方案如下：一种底盘用减震胶，由以下原料组成制得：烯烃橡胶100份、热塑性弹性体20～200份、粘度调节剂10～100份、填料0～100 份、抗老化剂0.5～5份、固化剂0～8份、和发泡剂2～50份。
进一步的，所述烯烃橡胶选自聚异戊二烯橡胶、聚丁二烯橡胶、聚苯乙烯橡胶、聚丙烯橡胶、丁基橡胶、三元乙丙橡胶中的至少一种。
进一步的，所述烯烃橡胶为与固化剂混合后在高温下能发生固化交联的混合物。
进一步的，所述热塑性弹性体选自热塑性聚酯弹性体、热塑性三元乙丙弹性体、热塑性苯乙烯类弹性体中的至少一种。
进一步的，所述粘度调节剂选自低分子量聚乙醇、聚乙烯、聚丙烯、聚丁二烯中的至少一种。
进一步的，所述填料选自炭黑、二氧化硅、钛白粉、碳酸钙、滑石粉中的至少一种。
进一步的，所述抗老化剂选自N－(1，3－二甲基)丁基－N＇－苯基对苯二胺、2，2，4－三甲基－1，2－二氢化喹啉聚合体、N，N＇－二甲苯基对苯二胺、硫代二丙酸十八酯、硫代二丙酸二月桂酯中的至少一种。
进一步的，所述固化剂选自N－叔丁基－2－苯并噻唑次磺酰胺、2一巯基苯并噻唑、四苄基二硫代秋兰姆中的至少一种。
进一步的，所述发泡剂选自偶氮化合物、黄酰肼类化合物、亚硝基化合物、尿基化合物中的至少一种。
一种上述所述底盘用减震胶的制备方法，包括以下步骤：
取烯烃橡胶、热塑性弹性体、粘度调节剂、填料、抗老化剂，高温混炼，得到混合物；
在上述混合物的基础上，加入固化剂和发泡剂，低温混炼，得到生胶；
对上述生胶高温硫化、发泡、定型，即得到减震胶。
本发明的有益效果是：
本申请提供的减震胶，可以在汽车振动力的传递路径上注入，即在关键部件的连接处注入减震胶，该胶在一定工况下形成多孔状阻尼橡胶弹性体，使得原本部件之间硬连接的地方有发泡橡胶增加隔振阻尼，以此降低路径传递的力学激励，从而达到隔振效果，降低车内噪音及路噪压耳感，保证车辆的生产质量。
具体实施方式
以下对本发明的具体实施方式进行详细说明。应当理解的是，此处所描述的具体实施方式仅用于说明和解释本发明，并不用于限制本发明。
本发明的底盘减震胶主要用于汽车底盘部件中，如汽车的轮辋总成与大花键的连接处、TOP－MOUNT(即滑柱上端的安装连接结构)与SUBFRAME(副车架)的连接处、转向拉杆之间、转向节与减震器的连接处、hub零部件两侧、连接转向节与制动盘的连接处、车身与前副车架的连接处、及转向机与前副车架的连接处，因为这些点位的连接均为硬接触，是底盘中产生噪音的主要位置，所以在这些位置注入减震胶，可以通过减震胶起到隔振的效果，从而降低车内噪音及路噪压耳感，提高车内人员乘坐汽车的舒适感，并保证车辆的生产质量。
本发明提供的一种底盘用减震胶，由以下原料组成制得：烯烃橡胶100份、热塑性弹性体20～200份、粘度调节剂10～100份、填料0～100份、抗老化剂0.5～5 份、固化剂0～8份、和发泡剂2～50份。
具体的，所述烯烃橡胶选自聚异戊二烯橡胶、聚丁二烯橡胶、聚苯乙烯橡胶、聚丙烯橡胶、丁基橡胶、三元乙丙橡胶中的一种或者多种的组合；进一步的，所述烯烃橡胶在与固化剂混合后，能在高温下发生固化交联。
具体的，所述热塑性弹性体选自热塑性聚酯弹性体、热塑性三元乙丙弹性体、热塑性苯乙烯类弹性体中的一种或者多种的组合。
具体的，所述粘度调节剂选自低分子量聚乙醇、聚乙烯、聚丙烯、聚丁二烯中的一种或者多种的组合。
具体的，所述填料选自炭黑、二氧化硅、钛白粉、碳酸钙、滑石粉中的一种或者多种的组合。
具体的，所述抗老化剂选自N－(1，3－二甲基)丁基－N＇－苯基对苯二胺、2，2，4－三甲基－1，2－二氢化喹啉聚合体、N，N＇－二甲苯基对苯二胺、硫代二丙酸十八酯、硫代二丙酸二月桂酯中的一种或者多种的组合。
具体的，所述固化剂选自N－叔丁基－2－苯并噻唑次磺酰胺、2一巯基苯并噻唑、四苄基二硫代秋兰姆中的一种或者多种的组合；所述固化剂能在硫化剂作用下发生交联作用。
具体的，所述发泡剂选自偶氮化合物、黄酰肼类化合物、亚硝基化合物、尿基化合物中的一种或者多种的组合；其中，偶氮化合物可以是发泡剂AC或偶氮二异丁腈；黄酰肼类化合物可以是苯黄酰肼或对甲苯黄酰肼；亚硝基化合物可以是发泡剂H；尿基化合物可以是尿素或对甲苯黄酰基尿。
实施例一
在本实施例中，所述底盘用减震胶由以下原料组成制得：
烯烃橡胶100份、热塑性弹性体50～100份、粘度调节剂20～80份、填料30～80 份、抗老化剂2～4份、固化剂2～5份、和发泡剂5～30份。
具体的，所述烯烃橡胶为聚异戊二烯橡胶、聚丁二烯橡胶、聚苯乙烯橡胶、聚丙烯橡胶、丁基橡胶、三元乙丙橡胶中的其中一种或者多种的组合；进一步的，所述烯烃橡胶在与固化剂混合后，能在高温下发生固化交联。
具体的，所述热塑性弹性体为热塑性三元乙丙弹性体与热塑性苯乙烯类弹性体的混合物。
具体的，所述粘度调节剂为低分子量聚乙醇、聚乙烯、聚丙烯、聚丁二烯中的其中一种或者多种的组合。
具体的，所述填料为炭黑或二氧化硅。
具体的，所述抗老化剂选自N－(1，3－二甲基)丁基－N＇－苯基对苯二胺、2，2，4－三甲基－1，2－二氢化喹啉聚合体、N，N＇－二甲苯基对苯二胺、硫代二丙酸十八酯、硫代二丙酸二月桂酯中的一种或者多种的组合。
具体的，所述固化剂选自N－叔丁基－2－苯并噻唑次磺酰胺、2一巯基苯并噻唑、四苄基二硫代秋兰姆中的一种或者多种的组合；所述固化剂能在硫化剂作用下发生交联作用。
具体的，所述发泡剂选自偶氮化合物、黄酰肼类化合物、亚硝基化合物、尿基化合物中的一种或者多种的组合；其中，偶氮化合物可以是发泡剂AC或偶氮二异丁腈；黄酰肼类化合物可以是苯黄酰肼或对甲苯黄酰肼；亚硝基化合物可以是发泡剂H；尿基化合物可以是尿素或对甲苯黄酰基尿。
实施例二
本实施例中提供了一种底盘用减震胶的制备方法，包括以下步骤：
取烯烃橡胶、热塑性弹性体、粘度调节剂、填料、抗老化剂，高温混炼，得到混合物；
在上述混合物的基础上，加入固化剂和发泡剂，低温混炼，得到生胶；
对上述生胶高温硫化、发泡、定型，即得到减震胶。
其中，各组分材料可以在密炼机或双螺杆挤出机中进行混炼，并通过喷嘴将减震胶注入到相应位置，具体的，挤出喷嘴温度＞150℃。
本申请提供的减震胶，可以在汽车振动力的传递路径上注入，即在关键部件的连接处注入减震胶，该胶在一定工况下形成多孔状阻尼橡胶弹性体，使得原本部件之间硬连接的地方有发泡橡胶增加隔振阻尼，以此降低路径传递的力学激励，从而达到隔振效果，降低车内噪音及路噪压耳感，保证车辆的生产质量。
此外，本申请提供的减震胶可以根据车辆特性，在局部区域注入减震胶，从而针对性地增加隔振系统，并保证汽车的隔振效果，且该产品可用于后装市场，客户操作性强，可提高原装车的舒适性品质。
只要不违背本发明创造的思想，对本发明的各种不同实施例进行任意组合，均应当视为本发明公开的内容；在本发明的技术构思范围内，对技术方案进行多种简单的变型及不同实施例进行的不违背本发明创造的思想的任意组合，均应在本发明的保护范围之内。

Claims (10)

1.一种底盘用减震胶，其特征在于，由以下原料组成制得：烯烃橡胶100份、热塑性弹性体20～200份、粘度调节剂10～100份、填料0～100份、抗老化剂0.5～5份、固化剂0～8份、和发泡剂2～50份。
2.根据权利要求1所述的底盘用减震胶，其特征在于：所述烯烃橡胶选自聚异戊二烯橡胶、聚丁二烯橡胶、聚苯乙烯橡胶、聚丙烯橡胶、丁基橡胶、三元乙丙橡胶中的至少一种。
3.根据权利要求1或2所述的底盘用减震胶，其特征在于：所述烯烃橡胶为与固化剂混合后在高温下能发生固化交联的混合物。
4.根据权利要求1所述的底盘用减震胶，其特征在于：所述热塑性弹性体选自热塑性聚酯弹性体、热塑性三元乙丙弹性体、热塑性苯乙烯类弹性体中的至少一种。
5.根据权利要求1所述的底盘用减震胶，其特征在于：所述粘度调节剂选自低分子量聚乙醇、聚乙烯、聚丙烯、聚丁二烯中的至少一种。
6.根据权利要求1所述的底盘用减震胶，其特征在于：所述填料选自炭黑、二氧化硅、钛白粉、碳酸钙、滑石粉中的至少一种。
7.根据权利要求1所述的底盘用减震胶，其特征在于：所述抗老化剂选自N－(1，3－二甲基)丁基－N＇－苯基对苯二胺、2，2，4－三甲基－1，2－二氢化喹啉聚合体、N，N＇－二甲苯基对苯二胺、硫代二丙酸十八酯、硫代二丙酸二月桂酯中的至少一种。
8.根据权利要求1所述的底盘用减震胶，其特征在于：所述固化剂选自N－叔丁基－2－苯并噻唑次磺酰胺、2一巯基苯并噻唑、四苄基二硫代秋兰姆中的至少一种。
9.根据权利要求1所述的底盘用减震胶，其特征在于：所述发泡剂选自偶氮化合物、黄酰肼类化合物、亚硝基化合物、尿基化合物中的至少一种。
10.一种如权利要求1－9任意一项所述底盘用减震胶的制备方法，其特征在于，包括以下步骤：
取烯烃橡胶、热塑性弹性体、粘度调节剂、填料、抗老化剂，高温混炼，得到混合物；
在上述混合物的基础上，加入固化剂和发泡剂，低温混炼，得到生胶；
对上述生胶高温硫化、发泡、定型，即得到减震胶。
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1649948A (zh) * 2002-05-13 2005-08-03 株式会社Jsp 聚丙烯树脂发泡颗粒和使用它的模制品
CN104072881A (zh) * 2013-03-28 2014-10-01 滁州格美特科技有限公司 一种热塑性微发泡减震材料及其制备方法
CN106700287A (zh) * 2016-12-19 2017-05-24 宁波泰甬汽车零部件有限公司 一种发泡热塑性弹性体及其制备方法
CN108299744A (zh) * 2017-01-13 2018-07-20 杭州星庐科技有限公司 橡胶组合物，及在发泡制品的应用和生产方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1649948A (zh) * 2002-05-13 2005-08-03 株式会社Jsp 聚丙烯树脂发泡颗粒和使用它的模制品
CN104072881A (zh) * 2013-03-28 2014-10-01 滁州格美特科技有限公司 一种热塑性微发泡减震材料及其制备方法
CN106700287A (zh) * 2016-12-19 2017-05-24 宁波泰甬汽车零部件有限公司 一种发泡热塑性弹性体及其制备方法
CN108299744A (zh) * 2017-01-13 2018-07-20 杭州星庐科技有限公司 橡胶组合物，及在发泡制品的应用和生产方法

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