CN108129715B - 柔性隔声材料及其制备方法和应用 - Google Patents
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Abstract
本发明公开了一种柔性隔声材料及其制备方法和应用,该柔性隔声材料包括以下重量份的组分:橡胶为25~40份,塑料为15~25份,增强纤维5~10份,重质粉体5~15份,塑化剂10~20份,热稳定剂1~2份,促进剂1~2份,硫化剂1~2份,偶联剂1~2份。制备方法包括:(1)原料称取;(2)硫化前混炼处理;(3)硫化处理;(4)切割、裁边,制成成品。该柔性隔声材料具有重量轻、隔声效果好、强度高、阻燃和抗老化性能好、可折叠和收卷等优点,可作为隔声构件原材料或直接作为隔声构件广泛使用。
Description
技术领域
本发明属于隔声新材料技术领域,尤其涉及一种柔性隔声材料及其制备方法和应用。
背景技术
随着社会经济的发展和城市人口密度的增大,噪声污染越来越受到公众的关注。声屏障、隔声罩等降噪设施是噪声污染治理中最常用、也是最有效的技术手段。但常规的隔声屏障、隔声罩为了达到足够的隔声量,并且减少声反射,通常采用金属板加吸声材料加金属穿孔板的主要结构,从而导致使用的隔声结构既厚又笨重,安装和拆卸非常的不方便。特别当被围挡的是变电器、电抗器等电力设备,经常需要运行维护,需要更加轻型和拆装方便的隔声材料。
发明内容
本发明要解决的技术问题是克服现有技术的不足,提供一种重量轻、隔声效果好、强度高、阻燃和抗老化性能好、可折叠和收卷的柔性隔声材料,还相应提供该柔性隔声材料的制备方法及应用。
为解决上述技术问题,本发明采用以下技术方案:
一种柔性隔声材料,包括以下重量份的组分:
橡胶为25~40份,
塑料为15~25份,
增强纤维5~10份,
重质粉体5~15份,
塑化剂10~20份,
热稳定剂1~2份,
促进剂1~2份,
硫化剂1~2份,和
偶联剂1~2份。
上述的柔性隔声材料,优选的,所述增强纤维为铝纤维、碳纤维、聚酯纤维、硅酸盐纤维中的一种或多种。
上述的柔性隔声材料,优选的,所述重质粉体为超细石墨烯粉体、超细三氧化二铝粉体、超细金属粉体中的一种或多种;所述重质粉体的粒径为100nm~100μm。
上述的柔性隔声材料,优选的,还包括:杀菌剂1~2份。
上述的柔性隔声材料,优选的,所述橡胶为氟橡胶、丁腈橡胶、氯丁橡胶中的一种或多种;所述塑料为聚碳酸树酯、聚氯乙烯、聚乙烯、聚苯乙烯、聚丙烯、聚氨酯中的一种或多种。
上述的柔性隔声材料,优选的,所述塑化剂为邻苯二甲酸二丁酯、邻苯二甲酸二辛酯、己二酸二辛酯中一种;所述热稳定剂为钙锌粉、有机锡、有机锑中的一种;所述促进剂为二硫化二苯并噻唑、N-环已基-2-苯并噻唑次磺酰胺、四甲基二硫化秋兰姆中的一种;所述硫化剂选自升华硫、氧化锌、氧化镁中的一种或多种;所述偶联剂为铬络合物偶联剂、硅烷偶联剂、钛酸酯偶联剂中的一种。
上述的柔性隔声材料,优选的,所述抗菌剂为纳米银、载银磷酸盐、四氯苯二腈中的一种。
作为一个总的发明构思,本发明还提供一种上述的柔性隔声材料的制备方法,包括以下步骤:
(1)先将橡胶、塑料、塑化剂和热稳定剂置于开炼机中温度为120℃~180℃,转速为10~30r/min下混炼1~5min,再加入增强纤维、重质粉体和偶联剂,维持温度和转速不变,混炼2~10min,冷却至室温,得到预混料;
(2)在步骤(1)所得的预混料中加入促进剂和硫化剂,在30~90℃,转速为10~30r/min下混炼2~10min,室温放置12~36h后,在室温转速为10~30r/min下继续混炼2~10min,最后置于平板硫化机上模压成型,模压温度为120~180℃,压力为5~15MPa,时间为10~30min,室温冷却后得到柔性隔声材料。
上述的柔性隔声材料的制备方法,优选的,所述步骤(2)中,还包括在预混料中加入抗菌剂。
作为一个总的发明构思,本发明还提供一种上述的柔性隔声材料或上述的制备方法制得的柔性隔声材料在成型隔声构件或作为隔声构件的应用。
本发明的创新性在于:
均质材料的隔声量遵守“质量定律”,即密度越大隔声量越大。本发明在丁腈橡胶和聚氯乙烯混料的基础上,通过添加增强纤维(如为铝纤维、碳纤维、聚酯纤维、硅酸盐纤维等)和重质粉体(如石墨烯、三氧化二铝、铁粉等),既能增加材料的密度,同时分散在混料中的增强纤维和超细粉体能形成多层不同界面的声反射,增加了声能量的消耗,因此能有效提高材料的隔声量,突破“质量定律”。同时因为增强纤维的添加,通过增强纤维形成的交联网状结构,提升了材料的抗压和抗拉性能好。
与现有技术相比,本发明的优点在于:
1、本发明的柔性隔声材料,以橡胶和塑料共混物为复合基体,以纤维增强剂和重质粉体为辅助填料以提高声能消耗,以塑化剂、热稳定剂、促进剂、硫化剂、偶联剂、杀菌剂为主要助剂,所成型的柔性隔声材料具有重量轻、隔声性能好,且能方便进行折叠和收卷等优点,所成型的隔声构件和降噪设施易于安装和拆卸,尤其适用于需要快速安装和拆卸的使用环境;同时还具有阻燃、抗老化性能好、抗压和抗拉性能好等优点。
2、本发明的柔性隔声材料的制备工艺简单,适于规模化生产。
附图说明
图1为本发明实施例1制备的柔性隔声材料的实物图。
具体实施方式
以下结合具体优选的实施例对本发明作进一步描述,但并不因此而限制本发明的保护范围。
实施例1:
一种本发明的柔性隔声材料的制备方法,包括以下步骤:
(1)按照如下重量配比称取原料:丁腈橡胶30份,聚氯乙烯20份,碳纤维10份,纳米石墨烯粉体(200nm)15份,己二酸二辛酯15份,钙锌粉2份,二硫化二苯并噻唑2份,升华硫2份,硅烷偶联剂(KH570)2份,纳米银2份。
(2)硫化前处理:先将丁腈橡胶、聚氯乙烯、己二酸二辛酯、钙锌粉放入开炼机(温度为160℃,速度为20r/min)中捏合2min后,加入碳纤维、纳米石墨烯和硅烷偶联剂,继续捏合5min。
(3)硫化处理:待混料冷却至室温后,在开炼机(温度为60℃,速度为20r/min)中按相应配比添加升华硫、二硫化二苯并噻唑和纳米银,捏合5min;在室温放置24h后,在开炼机(室温,速度为20r/min)捏合5min,然后置于平板硫化机(温度为160℃,压力为10MPa)上模压成型,时间为15min。
(4)硫化后处理:取出试样,室温冷却24h,最后将所得的柔性隔声片材裁成所需尺寸供使用。
样品厚度为1.5mm时的实物图如图1所示,性能参数如表1所示。
表1实施例1制备的柔性隔声材料的性能表
实施例2:
一种本发明的柔性隔声材料的制备方法,包括以下步骤:
(1)按照如下重量配比称取原料:丁腈橡胶35份,聚氯乙烯20份,铝纤维5份,超细金属铁粉(2um)15份,邻苯二甲酸二辛酯15份,有机锑2份,二硫化二苯并噻唑2份,升华硫2份,硅烷偶联剂(KH570)2份,纳米银2份。
(2)硫化前处理:先将丁腈橡胶、聚氯乙烯、邻苯二甲酸二辛酯、有机锑放入开炼机(温度为160℃,速度为20r/min)中捏合2min后,加入铝纤维、超细金属铁粉和硅烷偶联剂,继续捏合5min。
(3)硫化处理:待混料冷却至室温后,在开炼机(温度为60℃,速度为20r/min)中按相应配比添加升华硫、二硫化二苯并噻唑和纳米银,捏合5min;在室温放置24h后,在开炼机(室温,速度为20r/min)捏合5min,然后置于平板硫化机(温度为160℃,压力为10MPa)上模压成型,时间为15min。
(4)硫化后处理:取出试样,室温冷却24h,最后将所得的柔性隔声片材裁成所需尺寸供使用。
样品厚度为1.0mm时的性能参数如表2所示。
表2实施例2制备的柔性隔声材料的性能表
实施例3:
一种本发明的柔性隔声材料的制备方法,包括以下步骤:
(1)按照如下重量配比称取原料:丁腈橡胶35份,聚氨酯15份,铝纤维10份,纳米石墨烯粉体(200nm)15份,己二酸二辛酯15份,钙锌粉2份,二硫化二苯并噻唑2份,升华硫2份,硅烷偶联剂(KH570)2份,纳米银2份。
(2)硫化前处理:先将丁腈橡胶、聚氨酯、己二酸二辛酯、钙锌粉放入开炼机(温度为160℃,速度为20r/min)中捏合2min后,加入铝纤维、纳米石墨烯粉体和硅烷偶联剂,继续捏合5min。
(3)硫化处理:待混料冷却至室温后,在开炼机(温度为60℃,速度为20r/min)中按相应配比添加升华硫、二硫化二苯并噻唑和纳米银,捏合5min;在室温放置24h后,在开炼机(室温,速度为20r/min)捏合5min,然后置于平板硫化机(温度为160℃,压力为10MPa)上模压成型,时间为15min。
(4)硫化后处理:取出试样,室温冷却24h,最后将所得的柔性隔声片材裁成所需尺寸供使用。
样品为1.0mm时性能参数如表3所示。
表3实施例3制备的柔性隔声材料的性能表
以上所述仅是本发明的优选实施方式,本发明的保护范围并不仅局限于上述实施例。凡属于本发明思路下的技术方案均属于本发明的保护范围。应该指出,对于本技术领域的普通技术人员来说,在不脱离本发明原理的前提下的改进和润饰,这些改进和润饰也应视为本发明的保护范围。
Claims (8)
1.一种柔性隔声材料,由以下重量份的组分组成:
橡胶25~40份,
塑料15~25份,
增强纤维5~10份,
重质粉体5~15份,
塑化剂10~20份,
热稳定剂1~2份,
促进剂1~2份,
硫化剂1~2份,和
偶联剂1~2份;
所述增强纤维为铝纤维、碳纤维、硅酸盐纤维中的一种或多种;
所述重质粉体为超细石墨烯粉体、超细三氧化二铝粉体、超细金属粉体中的一种或多种;所述重质粉体的粒径为100nm~100μm。
2.根据权利要求1所述的柔性隔声材料,其特征在于,还包括:抗菌剂1~2份。
3.根据权利要求2所述的柔性隔声材料,其特征在于,所述橡胶为氟橡胶、丁腈橡胶、氯丁橡胶中的一种或多种;所述塑料为聚碳酸树酯、聚氯乙烯、聚乙烯、聚苯乙烯、聚丙烯、聚氨酯中的一种或多种。
4.根据权利要求3所述的柔性隔声材料,其特征在于,所述塑化剂为邻苯二甲酸二丁酯、邻苯二甲酸二辛酯、己二酸二辛酯中一种;所述热稳定剂为钙锌粉、有机锡、有机锑中的一种;所述促进剂为二硫化二苯并噻唑、N-环已基-2-苯并噻唑次磺酰胺、四甲基二硫化秋兰姆中的一种;所述硫化剂选自升华硫、氧化锌、氧化镁中的一种或多种;所述偶联剂为铬络合物偶联剂、硅烷偶联剂、钛酸酯偶联剂中的一种。
5.根据权利要求4所述的柔性隔声材料,其特征在于,所述抗菌剂为纳米银、载银磷酸盐、四氯苯二腈中的一种。
6.一种如权利要求1~5任一项所述的柔性隔声材料的制备方法,包括以下步骤:
(1)先将橡胶、塑料、塑化剂和热稳定剂置于开炼机中,在温度为120℃~180℃,转速为10~30r/min下混炼1~5min,再加入增强纤维、重质粉体和偶联剂,维持温度和转速不变,混炼2~10 min,冷却至室温,得到预混料;
(2)在步骤(1)所得的预混料中加入促进剂和硫化剂,在30~90℃,转速为10~30r/min下混炼2~10min,室温放置12~36 h后,在室温转速为10~30r/min下继续混炼2~10min,最后置于平板硫化机上模压成型,模压温度为120~180℃,压力为5~15 MPa,时间为10~30 min,室温冷却后得到柔性隔声材料。
7.根据权利要求6所述的柔性隔声材料的制备方法,其特征在于,所述步骤(2)中,还包括在预混料中加入抗菌剂。
8.一种如权利要求1~5任一项所述的柔性隔声材料或如权利要求6或7所述的制备方法制得的柔性隔声材料在成型隔声构件或作为隔声构件的应用。
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