CN110117352B - 一种棕榈油基聚氨酯多孔材料及其制备方法 - Google Patents
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Abstract
本发明公开了一种棕榈油基聚氨酯多孔材料,所述棕榈油基聚氨酯多孔材料由以下重量份数的材料组成:棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5份;聚合MDI:30~35份;其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g,本发明设计开发了一种榈油基聚氨酯多孔材料,利用棕榈油多元醇代替石油化多元醇制备聚氨酯吸声材料,减少了环境污染,具有更好的低频吸声效果和压缩性能,还提供了一种榈油基聚氨酯多孔材料制备方法。
Description
技术领域
本发明涉及汽车用声学材料领域,尤其涉及一种棕榈油基聚氨酯多孔材料和一种棕榈油基聚氨酯多孔材料制备方法。
背景技术
随着社会的不断进步以及经济的迅猛发展,汽车已经成为人们生活中必不可缺的交通工具。与此同时人们对汽车的舒适性和安全性要求也越来越高,作为三大污染源之一的噪声污染不仅影响汽车的舒适性还会影响驾乘人员的健康,因此需要采取必要的措施来降低车内噪声。
目前车内降噪的常用措施是采用声学包装材料,其机理是通过空气的振动及摩擦消耗声能,从而降低车内噪声,以满足人们的需求,聚氨酯泡沫是较为常用的一种声学包装材料,因为它具有质量轻、易加工等独特的优点。
目前,汽车上使用的聚氨酯吸声材料在高频范围内具有较好的吸声效果,但其制备的原材料均是从石油中提炼,对环境的污染大,而且随着石油资源的日益匮乏,有必要用其他环保型的原材料来代替石油化的原材料制备聚氨酯。
发明内容
本发明设计开发了一种棕榈油基聚氨酯多孔材料,利用棕榈油多元醇代替石油化多元醇制备聚氨酯吸声材料,减少了环境污染,具有更好的低频吸声效果和压缩性能。
本发明提供了一种棕榈油基聚氨酯多孔材料制备方法,给出材料制备过程中的搅拌转速,保证材料混合均匀,并给出保温处理时的和温度值,有效控制温度,既保证了发泡效果,又保证了聚氨酯材料吸声性能和压缩性能。
本发明提供的技术方案为:
一种棕榈油基聚氨酯多孔材料,其特征在于,所述棕榈油基聚氨酯多孔材料由以下重量份数的材料组成:
棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5 份;
聚合MDI:30~35份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g。
优选的是,所述聚醚多元醇为聚醚多元醇GP-3630。
优选的是,所述泡沫稳定剂为软泡硅油。
一种棕榈油基聚氨酯多孔材料制备方法,包括如下步骤:
步骤一、按照质量分数称取如下原料:
棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5 份;
聚合MDI:30~35份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将所述原料加入搅拌装置,并以转速n1进行搅拌,制得混合物A,并静置3~5分钟;
步骤三、加入30~35份聚合MDI,并以转速n2进行搅拌,得到混合物B;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中固化2小时;
步骤五、室温下放置后,除去表面结皮,得到棕榈油基聚氨酯吸声材料。
优选的是,所述步骤二中转速n1为1500rpm。
优选的是,所述步骤三中转速n2为1300rpm。
优选的是,所述步骤四中保温箱温度为50℃。
本发明所述的有益效果
本发明设计开发了一种榈油基聚氨酯多孔材料,利用棕榈油多元醇代替石油化多元醇制备聚氨酯吸声材料,减少了环境污染,具有更好的低频吸声效果和压缩性能,本发明给出材料制备过程中的搅拌转速,保证材料混合均匀,并给出保温处理时的和温度值,有效控制温度,既保证了发泡效果,又保证了聚氨酯材料吸声性能和压缩性能。
附图说明
图1为本发明所述的棕榈油基聚氨酯多孔材料制备方法的流程图。
图2为本发明所述的棕榈油基聚氨酯多孔材料及其制备方法中实施实例的吸声系数与频率关系曲线图。
图3为本发明所述的聚氨酯泡沫样品1~4的压缩性能曲线图。
具体实施方式
下面结合附图对本发明做进一步的详细说明,以令本领域技术人员参照说明书文字能够据以实施。
本发明提供的棕榈油基聚氨酯多孔材料包括:白料:棕榈油多元醇:43~49 份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
黑料:聚合MDI:30~35份。
其中,聚醚多元醇选用聚醚多元醇GP-3630,泡沫稳定剂选用软泡硅油。
如图1所示,一种棕榈油基聚氨酯多孔材料制备方法,包括如下步骤:
步骤一、按照质量分数称取如下原料:
棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5 份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将所述原料加入搅拌装置,并以转速n1进行搅拌,制得混合物A,并静置3~5分钟;其中,转速n1=1500rpm;
步骤三、加入30~35份聚合MDI,并以转速n2进行搅拌,得到混合物B,转速n2=1300rpm;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中固化2小时,保温箱温度值设定为50℃。
步骤五、室温下放置24小时后,除去表面结皮,得到棕榈油基聚氨酯吸声材料。
实验例1:
步骤一、按照质量分数称取如下原料:
棕榈油多元醇:43份、聚醚多元醇:57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、水:2.5份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将原料加入搅拌装置,并以转速n1=1500rpm进行搅拌,制得混合物A,并进行静置;
步骤三、加入30~35份聚合MDI,并以转速n2=1300rpm进行搅拌,得到混合物B;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中进行固化,保温箱温度设定值为50℃。
实验例2:
步骤一、按照质量分数称取如下原料:
棕榈油多元醇:46份、聚醚多元醇:54份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、水:2.5份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将原料加入搅拌装置,并以转速n1=1500rpm进行搅拌,制得混合物A,并进行静置;
步骤三、加入30~35份聚合MDI,并以转速n2=1300rpm进行搅拌,得到混合物B;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中进行固化,保温箱温度设定值为50℃。
实验例3:
步骤一、按照质量分数称取如下原料:
棕榈油多元醇:49份、聚醚多元醇:51份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、水:2.5份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将原料加入搅拌装置,并以转速n1=1500rpm进行搅拌,制得混合物A,并进行静置;
步骤三、加入30~35份聚合MDI,并以转速n2=1300rpm进行搅拌,得到混合物B;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中进行固化,保温箱温度设定值为50℃。
为进一步验证本发明中棕榈油基聚氨酯多孔材料的吸声效果,采用实验例1~3的原料和制备方法分别制得了棕榈油基聚氨酯多孔材料样品1~3,并将石油化的原材料制备聚氨酯材料作为样品4,并分别测量样品1~4平均吸声系数。测试结果如表1和图2所示。
表1为本发明所述的材料样品1~4平均吸声系数表
如表1和图2所示,棕榈油多元醇的加入对低频的吸声系数有所提高,随着棕榈油多元醇含量的增加,吸声系数在低频呈现先增大后减小的趋势,而在高频呈现先降低后增大的趋势,其中,当棕榈油多元醇含量为43、46、 49份时,平均吸声系数分别达到0.5097、0.4828、0.4878,而由石油基多元醇制备的聚氨酯的平均吸声系数为0.4837。本实例通过添加棕榈油多元醇制备聚氨酯多孔吸声材料,具有优良的低频吸声性能,并且降低了对石油基多元醇的使用,达到了在不牺牲声学性能的前提下,制备出环保型聚氨酯。说明本实施例中制得的吸声材料可以用作汽车吸声材料。
如图2所示,为进一步验证实验结果,加入了一组其他公开专利中的实施例,其吸声系数曲线为图中PU-实施例对应曲线,PU-P0是样品4的吸声系数曲线,PU-P43是样品1的吸声系数曲线,PU-P46是样品2的吸声系数曲线, PU-P49是样品3的吸声系数曲线,从图中看出,本文制备的棕榈油基聚氨酯泡沫在100-315Hz是低于实施例聚氨酯的吸声效果,但是在315-1600Hz均高于实施例的吸声效果,并且在高频1600-6300Hz范围内,除了加入46g棕榈油多元醇的聚氨酯泡沫低于实施例外,其他加入43g与49g的棕榈油基聚氨酯均优于实施例的吸声效果。所以进一步说本文制备的棕榈油基聚氨酯的吸声效果显著,在一定频率范围内能够满足汽车声学包装的要求。
如图3所示,PU-P0是样品4的压缩性能曲线,PU-P43是样品1的压缩性能曲线,PU-P46是样品2的压缩性能曲线,PU-P49是样品3的压缩性能曲线,从图3中直观可以看出,石油基的聚氨酯泡沫压缩性能最差,最大压缩强度为12.39kPa,杨氏模量为163.23kPa。此外加入棕榈油多元醇的聚氨酯泡沫的最大压缩强度对应为18.81kPa,17.95kPa,17.67kPa。再者从图中还可以得出,棕榈油基的聚氨酯泡沫杨氏模量(曲线的线性区域的斜率)分别对应为,379.54kPa,224.45kPa,188.16kPa。所以说棕榈油多元醇替换部分石油基多元醇能有效提高聚氨酯泡沫的压缩强度,在实际应用中,可以作为声学包装材料在汽车上应用。且性能优于纯石油基多元醇的聚氨酯泡沫。
本发明设计开发了一种榈油基聚氨酯多孔材料,利用棕榈油多元醇代替石油化多元醇制备聚氨酯吸声材料,减少了环境污染,具有更好的低频吸声效果和压缩性能。本发明提供了一种榈油基聚氨酯多孔材料制备方法,给出材料制备过程中的搅拌转速,保证材料混合均匀,并给出保温处理时的和温度值,有效控制温度,既保证了发泡效果,又保证了聚氨酯材料吸声性能和压缩性能。
尽管本发明的实施方案已公开如上,但其并不仅仅限于说明书和实施方式中所列运用,它完全可以被适用于各种适合本发明的领域,对于熟悉本领域的人员而言,可容易地实现另外的修改,因此在不背离权利要求及等同范围所限定的一般概念下,本发明并不限于特定的细节和这里示出与描述的图例。
Claims (7)
1.一种棕榈油基聚氨酯多孔材料,其特征在于,所述棕榈油基聚氨酯多孔材料由以下重量份数的材料组成:
棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5份;
聚合MDI:30~35份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g。
2.根据权利要求1所述的棕榈油基聚氨酯多孔材料,其特征在于,所述聚醚多元醇为聚醚多元醇GP-3630。
3.根据权利要求1所述的棕榈油基聚氨酯多孔材料,其特征在于,所述泡沫稳定剂为软泡硅油。
4.一种棕榈油基聚氨酯多孔材料制备方法,其特征在于,包括如下步骤:
步骤一、按照质量份数 称取如下原料:
棕榈油多元醇:43~49份、聚醚多元醇:51~57份、泡沫稳定剂:0.6份、三乙醇胺:2.5份、催化剂A1:0.05份、催化剂A33:1.0份、去离子水:2.5份;
聚合MDI:30~35份;
其中,所述棕榈油多元醇的羟基值范围为170~200mg KOH/g;
步骤二、将所述原料加入搅拌装置,并以转速n1进行搅拌,制得混合物A,并静置3~5分钟;
步骤三、加入30~35份聚合MDI,并以转速n2进行搅拌,得到混合物B;
步骤四、将混合物B倒入模具中进行自由发泡,放入保温箱中固化2小时;
步骤五、室温下放置后,除去表面结皮,得到用于吸声的棕榈油基聚氨酯多孔材料。
5.根据权利要求4所述的棕榈油基聚氨酯多孔材料制备方法,其特征在于,所述步骤二中转速n1为1500rpm。
6.根据权利要求5所述的棕榈油基聚氨酯多孔材料制备方法,其特征在于,所述步骤三中转速n2为1300rpm。
7.根据权利要求6所述的榈油基聚氨酯多孔材料制备方法,其特征在于,所述步骤四中保温箱温度为50℃。
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