CN109291552A - 一种吸音减振板及其制备方法 - Google Patents
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Abstract
本发明公开了一种吸音减振板及其制备方法,属于减振板领域。所述吸音减振板包括基体层、吸音层、金属层,所述金属层和吸音层分别设置在基体层的上表面和下表面,所述金属层为钢板,所述吸音层由多层金属纤维网复合而成,且在金属纤维网内填充空心玻璃微珠和环氧树脂,所述基体层包括以下重量份的原料,顺丁橡胶25‑35份、异戊橡胶30‑40份、碳纤维10‑14份、聚氨酯纤维15‑19份、蛭石粉5‑7份、二氧化硅5‑7份、氢氧化铝7‑9份、偶联剂2‑4份、防老剂1‑3份。本发明所述吸音减振板减振性能和吸音性能优异,且质量较轻,用途广泛。
Description
技术领域
本发明属于减振板领域,具体涉及一种吸音减振板及其制备方法。
背景技术
振动在日常生活和工业生产中普遍存在,如日常交通工具行驶过程中的车体振动、列车通过桥梁时路基的振动、飞机飞行过程中受气流作用产生的机翼和机身的振动、以及工业生产中机床振动等。大多数振动对我们的生活和生产具有不利影响,随着人们生活品质的不断提高,对减振降噪提出了越来越高的要求。因此,在吸音减振板的供给方面也需要有更多的高性能材料来满足更为广泛的需求。目前的减振板,并没有吸音的功能,一般都是同时采用独立的减振板和吸音材料才能达到减振和吸音的功能,增加了总体质量,减慢的工作效率。
发明内容
本发明的目的在于提供一种吸音减振板及其制备方法,该吸音减振板减振性能和吸音性能优异,且质量较轻,用途广泛。
为实现上述目的,本发明提供如下技术方案:
一种吸音减振板,包括基体层、吸音层、金属层,所述金属层和吸音层分别设置在基体层的上表面和下表面,所述金属层为钢板,所述吸音层由多层金属纤维网复合而成,且在金属纤维网内填充空心玻璃微珠和环氧树脂,所述基体层包括以下重量份的原料,顺丁橡胶25-35份、异戊橡胶30-40份、碳纤维10-14份、聚氨酯纤维15-19份、蛭石粉5-7份、二氧化硅5-7份、氢氧化铝7-9份、偶联剂2-4份、防老剂1-3份。
优选地,所述基体层包括以下重量份的原料,顺丁橡胶30份、异戊橡胶35份、碳纤维12份、聚氨酯纤维17份、蛭石粉6份、二氧化硅6份、氢氧化铝8份、偶联剂3份、防老剂2份。
优选地,金属纤维网采用不锈钢纤维制成,所述不锈钢纤维的直径为1-3mm,容重为450-500kg/m3。
优选地,所述基体层、金属层的厚度比为3:1。
优选地,所述金属纤维网的平均孔径为30-50μm。
优选地,所述空心玻璃微珠的直径为10-16μm。
优选地,所述吸音减振板的制备方法,包括以下步骤:
(1)基体层制备:将顺丁橡胶、异戊橡胶放入密炼机中密炼30-45min,制得母料,然后将碳纤维、聚氨酯纤维、蛭石粉、二氧化硅、氢氧化铝放入搅拌机内混合搅拌50-60min,再加入偶联剂、防老剂继续搅拌30-40min,搅拌结束后进行热处理,冷却至室温后进行返炼,然后用平板硫化机进行硫化,最后通过热压机压制成型,制得基体层;
(2)吸音层制备:将多层金属纤维网逐层复合在一起,在金属纤维网的孔内先填充空心玻璃微珠,再填充环氧树脂,通过热压机热压成型,制得金属网层,然后在金属网层的一端粘合一层空心玻璃微珠,即空心微珠层,制得吸音层;
(3)压制成型:在金属层上端复合基体层,将吸音层远离空心微珠层的一端与基体层上端重合,然后轧制压合,冷却固化后即得所述吸音减振板。
优选地,所述步骤(1)中,搅拌速度均为300-400r/min。
与现有技术相比,本发明的有益效果是:
1)基体层以顺丁橡胶和异戊橡胶为母料,增加了弹性,即增强了减振性能,添加二氧化硅,可以增加成品的耐磨性,添加碳纤维、聚氨酯纤维、蛭石粉,增强了吸音和减振性能,添加氢氧化铝可以增加成品的阻燃性。
2)吸音层由多层金属纤维网复合而成,金属纤维网具有优异的吸音效果,且多层复合可以增强减振效果,其次,填充空心玻璃微珠和环氧树脂,增加了孔隙率,空隙的当量直径变小,提升了吸音效果,且空隙玻璃微珠本身具有优异的吸音性能,再次提升了成品的吸音效果。
3)在金属网层粘合一层空心玻璃微珠,使成品一端面凹凸不平,当声音通过成品时,声波会在空心玻璃微珠层面上进行各个方向的反射,使声波的能量被分散,从而达到吸音效果。
4)本发明所述的吸音减振板可以同时实现减振和吸音的效果,质量较轻,且可以应用于很多领域,例如汽车和建筑行业。
附图说明
图1是本发明实施例1中一种吸音减振板的结构示意图;
图中,1、基体层,2、吸音层,201、金属纤维网,202、空心玻璃微珠,203、环氧树脂,3、金属层。
具体实施方式
下面将对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明的一部分实施例,而不是全部的实施例。基于本发明中的实施例,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
如图1所示,一种吸音减振板,包括基体层1、吸音层2、金属层3,所述金属层3和吸音层2分别设置在基体层1的上表面和下表面,所述金属层3为钢板,所述吸音层2由多层金属纤维网201复合而成,且在金属纤维网201内填充空心玻璃微珠202和环氧树脂203,所述基体层1包括以下重量份的原料,顺丁橡胶25份、异戊橡胶30份、碳纤维10份、聚氨酯纤维15份、蛭石粉5份、二氧化硅5份、氢氧化铝7份、偶联剂2份、防老剂1份;金属纤维网201采用不锈钢纤维制成,所述不锈钢纤维的直径为1mm,容重为450kg/m3;所述基体层1、金属层3的厚度比为3:1;所述金属纤维网201的平均孔径为30μm;所述空心玻璃微珠202的直径为10μm。
所述吸音减振板的制备方法,包括以下步骤:
(1)基体层制备:将顺丁橡胶、异戊橡胶放入密炼机中密炼30min,制得母料,然后将碳纤维、聚氨酯纤维、蛭石粉、二氧化硅、氢氧化铝放入搅拌机内混合搅拌50min,再加入偶联剂、防老剂继续搅拌30min,搅拌结束后进行热处理,以上搅拌速度均为300r/min冷却至室温后进行返炼,然后用平板硫化机进行硫化,最后通过热压机压制成型,制得基体层;
(2)吸音层制备:将二层金属纤维网逐层复合在一起,在金属纤维网的孔内先填充空心玻璃微珠,再填充环氧树脂,通过热压机热压成型,制得金属网层,然后在金属网层的一端粘合一层空心玻璃微珠,即空心微珠层,制得吸音层;
(3)压制成型:在金属层上端复合基体层,将吸音层远离空心微珠层的一端与基体层上端重合,然后轧制压合,冷却固化后即得所述吸音减振板。
实施例2
一种吸音减振板,包括基体层、吸音层、金属层,所述金属层和吸音层分别设置在基体层的上表面和下表面,所述金属层为钢板,所述吸音层由多层金属纤维网复合而成,且在金属纤维网内填充空心玻璃微珠和环氧树脂,所述基体层包括以下重量份的原料,顺丁橡胶30份、异戊橡胶35份、碳纤维12份、聚氨酯纤维17份、蛭石粉6份、二氧化硅6份、氢氧化铝8份、偶联剂3份、防老剂2份;金属纤维网采用不锈钢纤维制成,所述不锈钢纤维的直径为2mm,容重为475kg/m3;所述基体层、金属层的厚度比为3:1;所述金属纤维网的平均孔径为40μm;所述空心玻璃微珠的直径为13μm。
所述吸音减振板的制备方法,包括以下步骤:
(1)基体层制备:将顺丁橡胶、异戊橡胶放入密炼机中密炼37min,制得母料,然后将碳纤维、聚氨酯纤维、蛭石粉、二氧化硅、氢氧化铝放入搅拌机内混合搅拌55min,再加入偶联剂、防老剂继续搅拌35min,搅拌结束后进行热处理,以上搅拌速度均为350r/min冷却至室温后进行返炼,然后用平板硫化机进行硫化,最后通过热压机压制成型,制得基体层;
(2)吸音层制备:将四层金属纤维网逐层复合在一起,在金属纤维网的孔内先填充空心玻璃微珠,再填充环氧树脂,通过热压机热压成型,制得金属网层,然后在金属网层的一端粘合一层空心玻璃微珠,即空心微珠层,制得吸音层;
(3)压制成型:在金属层上端复合基体层,将吸音层远离空心微珠层的一端与基体层上端重合,然后轧制压合,冷却固化后即得所述吸音减振板。
实施例3
一种吸音减振板,包括基体层、吸音层、金属层,所述金属层和吸音层分别设置在基体层的上表面和下表面,所述金属层为钢板,所述吸音层由多层金属纤维网复合而成,且在金属纤维网内填充空心玻璃微珠和环氧树脂,所述基体层包括以下重量份的原料,顺丁橡胶35份、异戊橡胶40份、碳纤维14份、聚氨酯纤维19份、蛭石粉7份、二氧化硅7份、氢氧化铝9份、偶联剂4份、防老剂3份;金属纤维网采用不锈钢纤维制成,所述不锈钢纤维的直径为3mm,容重为500kg/m3;所述基体层、金属层的厚度比为3:1;所述金属纤维网的平均孔径为50μm;所述空心玻璃微珠的直径为16μm。
所述吸音减振板的制备方法,包括以下步骤:
(1)基体层制备:将顺丁橡胶、异戊橡胶放入密炼机中密炼45min,制得母料,然后将碳纤维、聚氨酯纤维、蛭石粉、二氧化硅、氢氧化铝放入搅拌机内混合搅拌60min,再加入偶联剂、防老剂继续搅拌40min,搅拌结束后进行热处理,以上搅拌速度均为400r/min冷却至室温后进行返炼,然后用平板硫化机进行硫化,最后通过热压机压制成型,制得基体层;
(2)吸音层制备:将六层金属纤维网逐层复合在一起,在金属纤维网的孔内先填充空心玻璃微珠,再填充环氧树脂,通过热压机热压成型,制得金属网层,然后在金属网层的一端粘合一层空心玻璃微珠,即空心微珠层,制得吸音层;
(3)压制成型:在金属层上端复合基体层,将吸音层远离空心微珠层的一端与基体层上端重合,然后轧制压合,冷却固化后即得所述吸音减振板。
以上内容仅仅是对本发明所作的举例和说明,所属本技术领域的技术人员对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,只要不偏离本发明或者超越本权利要求书所定义的范围,均应属于本发明的保护范围。
Claims (8)
1.一种吸音减振板,其特征在于:包括基体层、吸音层、金属层,所述金属层和吸音层分别设置在基体层的上表面和下表面,所述金属层为钢板,所述吸音层由多层金属纤维网复合而成,且在金属纤维网内填充空心玻璃微珠和环氧树脂,所述基体层包括以下重量份的原料,顺丁橡胶25-35份、异戊橡胶30-40份、碳纤维10-14份、聚氨酯纤维15-19份、蛭石粉5-7份、二氧化硅5-7份、氢氧化铝7-9份、偶联剂2-4份、防老剂1-3份。
2.根据权利要求1所述的一种吸音减振板,其特征在于:所述基体层包括以下重量份的原料,顺丁橡胶30份、异戊橡胶35份、碳纤维12份、聚氨酯纤维17份、蛭石粉6份、二氧化硅6份、氢氧化铝8份、偶联剂3份、防老剂2份。
3.根据权利要求1所述的一种吸音减振板,其特征在于:金属纤维网采用不锈钢纤维制成,所述不锈钢纤维的直径为1-3mm,容重为450-500kg/m3。
4.根据权利要求1所述的一种吸音减振板,其特征在于:所述基体层、金属层的厚度比为3:1。
5.根据权利要求1所述的一种吸音减振板,其特征在于:所述金属纤维网的平均孔径为30-50μm。
6.根据权利要求1所述的一种吸音减振板,其特征在于:所述空心玻璃微珠的直径为10-16μm。
7.根据权利要求1-6任一项所述的一种吸音减振板的制备方法,其特征在于,包括以下步骤:
(1)基体层制备:将顺丁橡胶、异戊橡胶放入密炼机中密炼30-45min,制得母料,然后将碳纤维、聚氨酯纤维、蛭石粉、二氧化硅、氢氧化铝放入搅拌机内混合搅拌50-60min,再加入偶联剂、防老剂继续搅拌30-40min,搅拌结束后进行热处理,冷却至室温后进行返炼,然后用平板硫化机进行硫化,最后通过热压机压制成型,制得基体层;
(2)吸音层制备:将多层金属纤维网逐层复合在一起,在金属纤维网的孔内先填充空心玻璃微珠,再填充环氧树脂,通过热压机热压成型,制得金属网层,然后在金属网层的一端粘合一层空心玻璃微珠,即空心微珠层,制得吸音层;
(3)压制成型:在金属层上端复合基体层,将吸音层远离空心微珠层的一端与基体层上端重合,然后轧制压合,冷却固化后即得所述吸音减振板。
8.根据权利要求7所述的一种吸音减振板的制备方法,其特征在于:所述步骤(1)中,搅拌速度均为300-400r/min。
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