CN105623018B - 一种超低滚动阻力轮胎胎面胶料及其炼胶方法和轮胎 - Google Patents

一种超低滚动阻力轮胎胎面胶料及其炼胶方法和轮胎 Download PDF

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CN105623018B
CN105623018B CN201610163679.5A CN201610163679A CN105623018B CN 105623018 B CN105623018 B CN 105623018B CN 201610163679 A CN201610163679 A CN 201610163679A CN 105623018 B CN105623018 B CN 105623018B
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王丹灵
任福君
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Abstract

本发明属于橡胶轮胎制造领域，尤其涉及一种超低滚动阻力轮胎胎面胶料及其炼胶方法和轮胎。一种超低滚动阻力轮胎胎面胶料，该轮胎胎面胶胶料按重量百分比计由包括以下组分的材料混炼而成：溶聚丁苯橡胶1、溶聚丁苯橡胶2、顺丁橡胶、白炭黑、芳烃油、硅烷偶联剂、白炭黑分散剂、萜烯树脂和促进剂DPG。本发明使用功能化的溶聚丁苯橡胶，通过硅烷化反应与白炭黑进行反应，提高填料在橡胶基体中的分散性，从而降低填料Payene效应，最终达到降低胶料滞后损失的目的。

Description

一种超低滚动阻力轮胎胎面胶料及其炼胶方法和轮胎
技术领域
本发明属于橡胶轮胎制造领域，尤其涉及一种超低滚动阻力轮胎胎面胶料及其炼胶方法和轮胎。
背景技术
随着国家经济实力的不断增强，汽车产业得到迅猛的发展，汽车已经成为人们生活中必不可少的重要交通工具。而汽车产业的发展也推动着轮胎行业的不断创新与进步。随着环保法规的日益严格和石油资源的日益紧缺，如何降低汽车燃油消耗成为了汽车行业和消费者关注的焦点。如日本从2010年开始实施自愿轮胎标签制度；欧盟从2012年11月1日起，实施强制性轮胎标签法规，绿色轮胎的全球份额随之大幅增加。在这个大背景之下，降低轮胎滚动阻力成为轮胎行业的一个热门话题。
在风阻、轮胎滚动阻力和机械阻力这三组影响汽车燃油消耗的主要因素中，轮胎的滚动阻力约占20-30%，轮胎滚动阻力产生的能耗占耗油量的15%。这意味着滚动阻力降低30%，则可节油4.5%左右。其中，在所有组成轮胎的胶料配方中，仅由胎面配方产生的滚动阻力占到50%左右。通过调整胎面配方可以，可以达到降低轮胎滚动阻力的目的。
发明内容
为了解决上述的技术问题，本发明的第一个目的是提供一种超低滚动阻力胎面胶料，本发明的第二个目的是提供上述的胶料混炼方法，本发明的第二个目的是提供上述的胶料制备的轮胎，其60℃附近tanδ值在0.06-0.07范围以内，轮胎胎面滚动阻力达到A级。
为了实现上述的第一个目的，本发明采用以下技术方案：
一种超低滚动阻力轮胎胎面胶料，该轮胎胎面胶胶料按重量百分比计由包括以下组分的材料混炼而成：
溶聚丁苯橡胶1 40.0-80.0份
溶聚丁苯橡胶2 10.0-30.0份
顺丁橡胶 10.0-30.0份
白炭黑 50.0-110.0份
芳烃油 5.0-20.0份
硅烷偶联剂 8.0-18.0份
白炭黑分散剂 1.0-6.0份
萜烯树脂 2.0-10.0份
促进剂DPG 1.0-3.0份
所述的溶聚丁苯橡胶1中苯乙烯的质量占聚合物总重的10-40%，而乙烯基的质量占丁二稀总重的40-70%；所述的溶聚丁苯橡胶2中苯乙烯的质量占聚合物总重的30-60%，而乙烯基的质量占丁二稀总重的15-45%；所述的顺丁橡胶中顺式丁二烯的质量占聚合物总重≥95%。
作为优选，该轮胎胎面胶胶料按重量百分比计由包括以下组分的材料混炼而成：
溶聚丁苯橡胶1 50.0-70.0份
溶聚丁苯橡胶2 15.0-25.0份
顺丁橡胶 15.0-25.0份
白炭黑 60.0-100.0份
芳烃油 7.0-18.0份
硅烷偶联剂 10.0-16.0份
白炭黑分散剂 2.0-5.0份
萜烯树脂 4.0-8.0份
促进剂DPG 1.5-2.5份。
作为优选，所述的溶聚丁苯橡胶1中苯乙烯的质量占聚合物总重的20-30%，乙烯基的质量占丁二稀总重的50-60%；所述的溶聚丁苯橡胶2中苯乙烯的质量占聚合物总重的40-50%，而乙烯基的质量占丁二稀总重的20-40%；所述的顺丁橡胶为钕系顺丁橡胶；
作为再优选，所述的溶聚丁苯橡胶1中苯乙烯质量占聚合物总重的27.5%，乙烯基的质量占丁二稀总重的59%；溶聚丁苯橡胶2中苯乙烯质量占聚合物总重的42%，乙烯基的质量占丁二稀总重的30%。
作为优选，所述的白炭黑选用氮吸附比表面积(NSA) 在145～185m2/g的高分散白炭黑；所述的硅烷偶联剂为X50S。
作为优选，该胎面胶胶料还包括活化剂2.0-5.0份，防老剂3.5-6.5份，硫磺1.5-3.0份和促进剂CZ 1.5-3.0份。作为再优选，所述的活化剂采用氧化锌和硬脂酸，氧化锌为1.5-2.5份，硬脂酸为0.5-2.5份。作为再优选，所述的防老剂采用防老剂RD、防老剂4020和微晶蜡，防老剂RD为1.5-2.5份，防老剂4020为1.5-2.5份，微晶蜡为0.5-1.5份。
为了实现上述的第二个目的，本发明采用以下技术方案：
上述的轮胎胎面胶料的制备方法，该方法使用串联式一次法密炼机，控制密炼机转子速度50rpm，上顶栓压力55N/cm2，密炼机冷却水温度30-40℃；上辅机工艺包括以下步骤：
①加入橡胶、白炭黑、白炭黑分散剂、硅烷偶联剂、促进剂DPG、硬脂酸、防老剂RD、防老剂4020、萜烯树脂，压上顶栓保持60秒；
②升上顶栓加入芳烃油；
③压上顶栓使胶料升温至145℃；
③提上顶栓加入氧化锌；
④压上顶栓使胶料在145℃恒温混炼60秒；
⑤将胶料排至下辅机；
下辅机工艺：
①使胶料升温至145℃；
②145℃恒温混炼250秒；
③排胶至开炼机，翻炼冷却胶料至90-100℃，在开炼机上加入硫磺、促进剂CZ分散均匀，下片冷却至室温。
为了实现上述的第三个目的，本发明采用以下技术方案：
一种超低滚动阻力轮胎，该低滚动阻力轮胎的胎面胶胶料采用上述的胎面胶胶料，滚动阻力达到A级。
本专利胎面配方使用功能化的溶聚丁苯橡胶，通过硅烷化反应与白炭黑进行反应，提高填料在橡胶基体中的分散性，从而降低填料Payene效应，最终达到降低胶料滞后损失的目的。轮胎行业通常使用60℃附近胎面胶料损耗因子正切值（tanδ）的大小表征轮胎的滚动阻力的高低，60℃tanδ越小，则轮胎滚动阻力越低。所以为了制备超低滚阻胎面胶，胎面胶在60℃附近tanδ应该越低越好。
具体实施方式
下面结合实施例和对比例进一步说明本发明目的，但并非限制本发明权的保护范围，本发明的范围在权利要求书中提出。具体配方见表1。
表1实施例和对比例配方特征
其中：
①溶聚丁苯橡胶A 苯乙烯质量占聚合物总重的27.5%，乙烯基占丁二稀总重的59%；
②溶聚丁苯橡胶B 苯乙烯质量占聚合物总重的42%，乙烯基占丁二稀总重的30%；
③溶聚丁苯橡胶C 苯乙烯质量占聚合物总重的20%，乙烯基占丁二稀总重的55%；
④溶聚丁苯橡胶D 苯乙烯质量占聚合物总重的40%，乙烯基占丁二稀总重的40%；
⑤硅烷偶联剂为X50S；
上述配方胶料加工工艺如下所示：
使用串联式一次法密炼机，控制密炼机转子速度50rpm，上顶栓压力55N/cm2，密炼机冷却水温度30-40℃。上辅机工艺：①加入橡胶、白炭黑、白炭黑分散剂、硅烷偶联剂、促进剂DPG、硬脂酸、防老剂RD、防老剂4020、萜烯树脂，压上顶栓保持60秒；②升上顶栓加入芳烃油；③压上顶栓使胶料升温至145℃；③提上顶栓加入氧化锌；④压上顶栓使胶料在145℃恒温混炼60秒；⑤将胶料排至下辅机。下辅机工艺：①使胶料升温至145℃；②145℃恒温混炼250秒；③排胶至开炼机，翻炼冷却胶料至90-100℃，在开炼机上加入硫磺、促进剂CZ分散均匀，下片冷却至室温。
表1中实施例和典型通用轿车胎面的主要性能如表2所示。
表2 实施例和对比例配方性能
上述的实施例和对比例机床测试结果如表3所示。
表3 实施例和对比样机床性能（轮胎规格205/65R15 94H）
。

Claims (1)

1.一种超低滚动阻力轮胎胎面胶料的制备方法，其特征在于该轮胎胎面胶胶料按质量分数计由以下组分的材料混炼而成：
溶聚丁苯橡胶A 70.0
溶聚丁苯橡胶B 15.0
钕系顺丁橡胶 15.0
白炭黑 80.0
硅烷偶联剂 12.8
白炭黑分散剂 3.0
芳烃油 15.0
防老剂4020 2.0
防老剂RD 2.0
微晶蜡 1.5
硬脂酸 1.8
氧化锌 2.0
促进剂DPG 2.0
硫磺 2.5
促进剂CZ 2.5；
所述的溶聚丁苯橡胶A 苯乙烯质量占聚合物总重的27.5%，乙烯基占丁二稀总重的59%；
所述的溶聚丁苯橡胶B 苯乙烯质量占聚合物总重的42%，乙烯基占丁二稀总重的30%；
所述的硅烷偶联剂为X50S。
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CN114591550A (zh) * 2022-03-07 2022-06-07 中策橡胶集团股份有限公司 低锌金属-有机框架材料在橡胶组合物中作为活性剂的应用
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