CN109553751A - 一种聚氨酯方向盘的制备方法 - Google Patents
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Abstract
本发明属于高分子材料技术领域,具体为一种聚氨酯方向盘的制备方法。聚氨酯汽车方向盘由A料与B料为原料制备加工,A料:聚醚多元醇、聚酯多元醇、叔胺类催化剂、硅油、扩链剂、水,B组分:液化MDI、粗MDI。本发明的原料为低挥发、反应型制备原料;该生产方法不仅环保易实施,而且具有优良拉伸性能、弹性性能等优点。所制备的方向盘在提高了方向盘的机械系性能,降低了挥发性有机物的含量,满足中高端汽车市场对聚氨酯高性能方向盘的要求。
Description
技术领域
本发明属于高分子材料领域,涉及聚氨酯汽车方向盘的制备技术,具体涉及一种聚氨酯方向盘的制备方法。
背景技术
随着人们生活水平的提升,国内汽车行业迅猛发展,中高端车辆对车辆内饰的要求越来越高,国内传统聚氨酯工艺制作的方向盘已无法满这些车辆配件需求;而从国外进口的方向盘价格昂贵。因此,国产化中高端客车方向盘的研制开发已提到当前国内汽车发展的议事日程。
发明内容
本发明的目的是提供一种工艺简单、性能优良的聚氨酯汽车方向盘的制备方法。
为实现以上目的,本发明的技术解决方案如下。
一种聚氨酯方向盘的制备方法,按重量份数计,其原料配方如下:
聚醚多元醇40~75份、聚酯多元醇20~45份、植物油0.5~1.5份、叔胺类催化剂0.1~0.3份、硅油0.5~1.5份、水1~2份、扩链剂1~3份、粗MDI 50~70份、液化MDI 5~40份、纯MDI 3~8份;其制备方法包括以下步骤:
①A料的准备:将聚醚多元醇、聚酯多元醇、植物油、叔胺类催化剂、水、硅油和扩链剂,在常温、50~80rpm/min的转速下搅拌40~60min,即得A料;
②B料的准备:将粗MDI、液化MDI和纯MDI在50~60℃的温度、在50~80rpm/min下的转速下搅拌30~40min,即得B料;
③原料的准备:将A料打入发泡机A组原料桶内;将B料打入发泡机B组原料桶内;
④方向盘的制备:用发泡机将A料与B料在浇注机混合头的混合区混合均匀,浇注成型;脱模,对聚氨酯泡沫板切割整理,用皮革将方向盘包裹,得到方向盘。
本发明中,按重量份数计,其原料配方如下:聚醚多元醇48~63份、聚酯多元醇27~38份、植物油0.8~1.2份、叔胺类催化剂0.1~0.2份、硅油0.8~1.2份、水1~1.5份、扩链剂1.2~1.6份、粗MDI 60~65份、液化MDI10~35份、纯MDI 4~6份。
本发明中,所述聚醚多元醇的重均分子量为6000±300。
本发明中,所述聚醚多元醇为聚四氢呋喃多元醇;
本发明中,所述植物油为分析级麻风树油、分析级棕榈油的一种或两种的组合。
本发明中,所述叔胺类催化剂为N,N-二甲基苄胺、N,N-二甲基十六胺、N,N-二甲基乙醇胺的一种或几种的组合。
本发明中,所述硅油为羟基硅油。
本发明中,所述扩链剂为二乙醇胺、丙二醇中的一种或两种的组合。
本发明中,所述液化MDI为氨酯改性MDI。
本发明中,所述纯MDI为2.4'-MDI。
本发明中,所述液化MDI为聚醚型改性MDI。粗MDI是一种不同官能度的多异氧酸酯混合物,其中n-0的二异氰酸酯(MDI)占混合物的50%左右,其余是3官能度平均分子量为350-420的低聚合度异氰酸酯,常温下为褐色至棕色液体。
本发明中,步骤④中脱模时间为10~20分钟。在试验过程中,得到证明,在该脱模时间内可以保证产品的成形性能。若时间太短产品成形不完全,时间太长影响生产效率,造成生产的成本浪费。
和现有技术相比,本发明具有以下优点:
(1)由于A料采用重均分子量为6000±300的聚醚多元醇作为原料,加入占聚醚多元醇质量30%~40%的聚酯多元醇,加入占聚醚多元醇质量1%~2%的植物油,B料加入占总质量的20%~30%的液化MDI,占总质量的5%纯MDI,降低了总体VOC的挥发量,提高聚氨酯材料的拉伸性能;
(2)所选用的原材料适合高性能产品的开发研发,生产方法简单;
(3)在制备方法的设计上,采取全水发泡技术,无毒环保,无臭氧破坏效应,是一种环保型生产方法;
(4)所选用的原材料为低挥发、反应型原料,制备方法具有环保、无污染等优点。
(5)所述的聚氨酯方向盘的制备方法,不但节能环保,而且性能优良,不需要后续处理,可以满足高端汽车市场对高性能方向盘的要求。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例说明如后。
具体实施方式
下面对本发明实施例中的技术方案进行清楚、完整的描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,不用来限制本发明的范围。基于本发明的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1
①A料的准备:向87kg济南华宇化工有限公司的聚醚多元醇,加入N,N-二甲基乙醇胺0.1kg,加入水2kg,加入嘉兴科瑞有机硅有限公司106羟基硅油1kg,加入丙二醇1kg,控制转速在50~80转/min,在常温下搅拌50min,即可得A料;
②B料的准备:加入万华公司的6928质量40kg,加入万华公司的 MDI-50质量65kg。将两者在常温下搅拌40min,转速控制在30~50转/min,即得B料;
③原料的准备:将A料打入发泡机A组原料桶内;将B料打入发泡机B组原料桶内;
④方向盘的制备:用发泡机将上述A料与B料在浇注机混合头的混合区混合均匀,浇注成型;脱模,对聚氨酯泡沫板切割整理,用皮革将方向盘包裹,得到低VOC方向盘。
实施例2
①A料的准备:济南华宇化工有限公司的聚醚多元醇48kg,加入华大聚酯多元醇38kg,加入棕榈油1kg,加入N,N-二甲基苄胺0.1kg,加入水1kg,加入嘉兴科瑞有机硅有限公司106羟基硅油1kg,加入丙二醇1.5kg,控制转速在80转/min,在常温下搅拌50min,即可得A料;
②B料的准备:万华公司的6928质量35kg,万华公司的MDI-50质量65kg,加入1102质量5kg,升温至50~60℃下搅拌40min,转速控制在50转/min,密封保存,即得B料;
③原料的准备:将A料打入发泡机A组原料桶内;将B料打入发泡机B组原料桶内;
④方向盘的制备:用发泡机将上述A料与B料在浇注机混合头的混合区混合均匀,浇注成型;脱模,对聚氨酯泡沫板切割整理,用皮革将方向盘包裹,得到高性能聚氨酯方向盘。
实施例3
①A料的准备:济南华宇化工有限公司的聚醚多元醇63kg,华大聚酯多元醇27kg,加入麻风树油0.6kg,棕榈油0.4kg,加入N,N-二甲基乙醇胺0.1kg,加入水1kg,加入嘉兴科瑞有机硅有限公司106羟基硅油1kg,加入乙二醇1kg,丙二醇0.5kg,控制转速在50~80转/min,在常温下搅拌50min,即可得A料;
②B料的准备:万华公司的6928质量10kg,万华公司的MDI-50质量65kg,1102质量5kg升温至50~60℃下搅拌40min,转速控制在30~50转/min,密封保存,即得B料;
③原料的准备:将A料打入发泡机A组原料桶内;将B料打入发泡机B组原料桶内;
④方向盘的制备:用发泡机将上述A料与B料在浇注机混合头的混合区混合均匀,浇注成型;脱模,对聚氨酯泡沫板切割整理,用皮革将方向盘包裹,得到高性能聚氨酯方向盘。
上述实施例1-3中聚氨酯方向盘的性能指标见表1。
表1
以上所述仅是本发明的优选实施方式,并不用于限制本发明,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变型,这些改进和变型也应视为本发明的保护。
Claims (10)
1.一种聚氨酯方向盘的制备方法,其特征在于,按重量份数计,其原料配方如下:
聚醚多元醇40~75份、聚酯多元醇20~45份、植物油0.5~1.5份、叔胺类催化剂0.1~0.3份、硅油0.5~1.5份、水1~2份、扩链剂1~3份、粗MDI 50~70份、液化MDI 5~40份、纯MDI 3~8份;其制备方法包括以下步骤:
①A料的准备:将聚醚多元醇、聚酯多元醇、植物油、叔胺类催化剂、水、硅油和扩链剂,在常温、50~80rpm/min的转速下搅拌40~60min,即得A料;
②B料的准备:将粗MDI、液化MDI和纯MDI在50~60℃的温度、在50~80rpm/min下的转速下搅拌30~40min,即得B料;
③原料的准备:将A料打入发泡机A组原料桶内;将B料打入发泡机B组原料桶内;
④方向盘的制备:用发泡机将A料与B料在浇注机混合头的混合区混合均匀,浇注成型;脱模,对聚氨酯泡沫板切割整理,用皮革将方向盘包裹,得到方向盘。
2.根据权利要求1所述的制备方法,其特征在于,按重量份数计,其原料配方如下:聚醚多元醇48~63份、聚酯多元醇27~38份、植物油0.8~1.2份、叔胺类催化剂0.1~0.2份、硅油0.8~1.2份、水1~1.5份、扩链剂1.2~1.6份、粗MDI 60~65份、液化MDI10~35份、纯MDI4~6份。
3.根据权利要求1所述的制备方法,其特征在于:所述聚醚多元醇的重均分子量为6000±300。
4.根据权利要求1所述的制备方法,其特征在于:所述聚醚多元醇为聚四氢呋喃多元醇。
5.根据权利要求1所述的制备方法,其特征在于:所述植物油为分析级麻风树油、分析级棕榈油的一种或两种的组合。
6.根据权利要求1所述的制备方法,其特征在于:所述叔胺类催化剂为N,N-二甲基苄胺、N,N-二甲基十六胺、N,N-二甲基乙醇胺的一种或几种的的组合。
7.根据权利要求1所述的制备方法,其特征在于:所述硅油为羟基硅油。
8.根据权利要求1所述的制备方法,其特征在于:所述扩链剂为二乙醇胺、丙二醇中的一种或两种的组合。
9.根据权利要求1所述的制备方法,其特征在于:所述液化MDI为氨酯改性MDI。
10.根据权利要求1所述的制备方法,其特征在于:所述纯MDI为2.4'-MDI。
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