CN106183248B - 一种净化空气用阻尼降噪复合材料 - Google Patents

一种净化空气用阻尼降噪复合材料 Download PDF

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CN106183248B
CN106183248B CN201610540560.5A CN201610540560A CN106183248B CN 106183248 B CN106183248 B CN 106183248B CN 201610540560 A CN201610540560 A CN 201610540560A CN 106183248 B CN106183248 B CN 106183248B
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龚湛林
李虹征
于日志
曹焕仁
欧阳娟娟
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Guangdong Xinli Polytron Technologies Inc
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Abstract

本发明公开了一种净化空气用阻尼降噪复合材料，该复合材料包括由上往下依次贴设的吸声层、含有二氧化氯并且能够持续释放二氧化氯的功能层、丁基胶层和离型纸，功能层表面喷酒有缓释放活性剂，功能层和丁基胶层通过双层共挤方式挤出贴合；该功能层由以下按照重量份计的组成构成：丁基橡胶90～110份，填料55～65份，增粘剂75～85份，二氧化氯缓释剂1～20份，活化填料1～20份。本发明施工方便性，具有阻尼限制性、噪音高吸收性和持续空气净化性等特点，无毒、环保、降噪及空气净化效果显著。

Description

一种净化空气用阻尼降噪复合材料
技术领域
本发明涉及一种具有净化空气作用的阻尼降噪复合材料。
背景技术
近年来汽车、室内等生活环境中，甲醛和有机挥发物污染严重，影响人体健康, 已引起人们广泛关注，净化空气是人们普遍关注的问题。现有净化空气的主要方法为常规活性炭暴露吸附和采用空气净化器。二氧化氯作为国际公认的高效防腐保鲜剂，目前已经广泛应用在食品工业领域，同时二氧化氯也可用于纸浆织物漂白、废水处理和饮用水消毒灭菌等方面。在合适浓度范围内的二氧化氯能与空气中的甲醛等有机挥发物反应，杀菌消毒，去除臭味，且对人体无害。因此，二氧化氯用作于净化空气是一种高效的途径，但具有一定的使用局限性。目前缓释放二氧化氯材料已为工业化产品，但是常规使用方法是配合成水溶剂使用，对用于汽车及室内空气净化的使用操作及长期释放时间构成很大难度。如CN10145584B提出双组分形成溶胶的方法来延长换释放时间，而CN100539846C提出一种单组分固体二氧化氯缓释剂，直接与水复配释放二氧化氯。以上方案均不能有效的解决二氧化氯缓释放的问题，而且容易存在二氧化氯释放量过高问题，造成二次污染。同时，自粘性非硫化阻尼橡胶复合材料常用作于汽车，室内，KTV房间等的减震降噪，通常只具有减震降噪功能，功能较为单一。
发明内容
本发明要解决的技术问题是提供一种阻尼降噪和空气净化效果较佳的净化空气用阻尼降噪复合材料。
为了解决上述技术问题，本发明采取以下方案：
一种净化空气用阻尼降噪复合材料，该复合材料包括由上往下依次贴设的吸声层、含有二氧化氯并且能够持续释放二氧化氯的功能层、丁基胶层和离型纸，功能层表面喷酒有缓释放活性剂，功能层和丁基胶层通过双层共挤方式挤出贴合；该功能层由以下按照重量份计的组成构成：丁基橡胶 90～110份，填料55～65份，增粘剂75～85份，二氧化氯缓释剂1～20份，活化填料1～20份。
所述缓释放活性剂为柠檬酸粉，并且该缓释放活性剂与功能层中含有的二氧化氯缓释剂的重量配比为0.1～0.5:1。
所述二氧化氯缓释剂为二氧化氯缓释放树脂。
所述填料为轻钙、硫酸钡、炭黑或白炭黑。
所述增粘剂为聚异丁烯、酚醛树脂或石油树脂。
所述活化填料为酸残余率为1～5%的凹凸棒土或硅酸钙微粉。
所述活化填料以醋酸或柠檬酸处理，使该活化填料的酸残余率为1～5%。
所述丁基胶层为粘性非硫化丁基胶层。
所述吸声层为多孔吸声材料制成的多孔吸声层。
本发明具有以下有益效果：
1、利用高极性小分子二氧化氯树脂在非极性橡胶中会表面迁移的特性，可有效持续控制功能层表面的二氧化氯缓释剂和活化填料的反应量，从而实现长久低量二氧化氯的释放。
2、充分利用吸音层多孔性的特点对二氧化氯具有一定量的吸附阻隔功效，对延缓二氧化氯释放时间有一定的作用，同时使复合材料具有吸声降噪功能。
3、第三层采用高阻尼非硫化丁基橡胶层作为多孔吸音层与基体的连接层，既具有对低频噪音的吸收作用，又能有效降低基体振动所产生的噪音，同时便于施工可直接复合到不同结构和形状的基体上。
可适用于汽车内饰件、家庭、影院、剧院、会议室、墙面、顶面等作空气净化阻尼降噪材料。
附图说明
附图1为本发明剖面结构示意图；
附图2为本发明二氧化氯释放示意图。
具体实施方式
为了便于本领域技术人员的理解，下面结合附图对本发明作进一步的描述。
如附图1所示，本发明揭示了一种净化空气用阻尼降噪复合材料，包括由上往下依次贴设的吸声层1、含有二氧化氯并且能够持续释放二氧化氯的功能层2、丁基胶层3和离型纸4，功能层表面喷酒有缓释放活性剂，功能层和丁基胶层通过双层共挤方式挤出贴合；该功能层由以下按照重量份计的组成构成：丁基橡胶 90～110份，填料55～65份，增粘剂75～85份，二氧化氯缓释剂1～20份，活化填料1～20份。尤其是将丁基橡胶优选为100份，填料为60份，增粘剂为80份，二氧化氯缓释剂为10份，活化填料为10份。
缓释放活性剂为柠檬酸粉，并且该缓释放活性剂与二氧化氯缓释剂的重量配比为0.1～0.5:1。通过缓释放活性剂和二氧化氯缓释剂，从而使得功能层中的二氧化氯缓慢释放。
二氧化氯缓释剂为二氧化氯缓释放树脂。填料为轻钙、硫酸钡、炭黑或白炭黑。增粘剂为聚异丁烯、酚醛树脂或石油树脂。活化填料为通过醋酸或柠檬酸处理过的凹凸棒土或硅酸钙微粉或者其他多孔性材料，经过处理后，该活化填料的酸残余率为1～5%。
此外，丁基胶层为粘性非硫化丁基胶层，既具有对低频噪音的吸收作用，又能有效降低基体振动所产生的噪音，同时便于施工可直接复合到不同结构和形状的基体上。吸声层为多孔吸声材料制成的多孔吸声层，比如为开孔型发泡海绵或纤维棉等多孔性材料，具有透气的特点，并且具有吸声降噪作用。
如附图2所示，为本发明经过试验后的二氧化氯释放的具体线性图，同时与现有技术中二氧化氯缓释放树脂/柠檬酸粉混合水溶液的二氧化氯随时间释放的对比图。经过试验得到，二氧化氯缓释树脂/柠檬酸粉混合水溶液初期二氧化氯释放量较高，随时间增加而降低，在40天后开始出现下降明显趋势。而本发明初始二氧化氯释放基本为零，随时间延长二氧化氯释放量开始增加，并后续基本保持稳定。
通过本发明，可有效二氧化氯和释放变慢并趋于稳定，从而提高对空气的净化效果。
需要说明的是，以上所述并非是对本发明的限定，在不脱离本发明的创造构思的前提下，任何显而易见的替换均在本发明的保护范围之内。

Claims (2)

1.一种净化空气用阻尼降噪复合材料，其特征在于，该复合材料包括由上往下依次贴设的吸声层、含有二氧化氯并且能够持续释放二氧化氯的功能层、丁基胶层和离型纸，功能层表面喷酒有缓释放活性剂，功能层和丁基胶层通过双层共挤方式挤出贴合；
该功能层由以下按照重量份计的组成构成：丁基橡胶 90～110份，填料55～65份，增粘剂75～85份，二氧化氯缓释剂1～20份，活化填料1～20份；
其中，所述缓释放活性剂为柠檬酸粉，并且该缓释放活性剂与功能层中含有的二氧化氯缓释剂的重量配比为0.1～0.5:1；
所述二氧化氯缓释剂为二氧化氯缓释放树脂；
所述填料为轻钙、硫酸钡、炭黑或白炭黑；
所述活化填料为酸残余率为1～5%的凹凸棒土或硅酸钙微粉；
所述增粘剂为聚异丁烯、酚醛树脂或石油树脂；
所述丁基胶层为粘性非硫化丁基胶层；
所述吸声层为多孔吸声材料制成的多孔吸声层。
2.根据权利要求1所述的净化空气用阻尼降噪复合材料，其特征在于，所述活化填料以醋酸或柠檬酸处理，使该活化填料的酸残余率为1～5%。
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