CN107310225A - 一种强隔音芳纶纸蜂窝复合地板及其制备方法 - Google Patents

一种强隔音芳纶纸蜂窝复合地板及其制备方法 Download PDF

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CN107310225A
CN107310225A CN201710323960.5A CN201710323960A CN107310225A CN 107310225 A CN107310225 A CN 107310225A CN 201710323960 A CN201710323960 A CN 201710323960A CN 107310225 A CN107310225 A CN 107310225A
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aramid fiber
fiber paper
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nitrile rubber
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CN107310225B (zh
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宋俊富
薛广钊
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Jiangsu Chun Xin New Material Co Ltd
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Abstract

本发明涉及新材料制备技术领域，具体的讲是一种强隔音芳纶纸蜂窝复合地板及其制备方法，包括：预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝，芳纶纸蜂窝夹采用胶黏剂粘设在多孔丁腈橡胶一和多孔丁腈橡胶二之间，多孔丁腈橡胶一上表面采用胶黏剂粘有预浸料固化片一，多孔丁腈橡胶二的下表面采用胶黏剂粘有预浸料固化片二，所述预浸料固化片的面密度为500±20g/m2，树脂含量为40%，挥发分含量为8%，所述预浸料固化片分为单层预浸料固化片和双层预浸料固化片，单层预浸料固化片的厚度为0.25±0.025mm，双层预浸料固化片的厚度为0.38±0.02mm。

Description

一种强隔音芳纶纸蜂窝复合地板及其制备方法
技术领域
本发明涉及新材料制备技术领域，具体的讲是一种强隔音芳纶纸蜂窝复合地板及其制备方法。
背景技术
随着时代科技的不断高速发展，随之而来的就是高便捷快速的交通发展。火车、高铁、动车却都面临了一个十分难以解决的问题—噪音。在改善轨道交通列车内声场环境的技术中，主要从两方面在入手，一方面是在钢轨、车轮部位安置阻尼装置，定期打磨钢轨、镟修车轮，即从声源处减少振动的输出和噪声的辐射，另一方面是减少车底向车厢内部传播的振动噪声，通过优化车体地板结构达到减振隔音效果。
目前最普遍的做法是将隔音垫插入轨道交通列车内地板中，隔音垫的主要有两方面的作用：一方面降低车外向车厢内部的空气声传播，二是隔音垫优良的阻尼特性可削弱振动声辐射水平。但是在现有的隔音垫中均是采用多层复合粘结的结构状态，在声音的吸收中无法达到高效吸音的效果，为此设计了一种高效多孔的吸音复合芳纶纸蜂窝复合地板及其制备方法是十分有必要的。
发明内容
本发明突破了现有技术的难题，设计了一种高效多孔的吸音复合芳纶纸蜂窝复合地板及其制备方法。
为了达到上述目的，本发明设计了一种强隔音芳纶纸蜂窝复合地板，包括：预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝，其特征在于：芳纶纸蜂窝夹采用胶黏剂粘设在多孔丁腈橡胶一和多孔丁腈橡胶二之间，多孔丁腈橡胶一上表面采用胶黏剂粘有预浸料固化片一，多孔丁腈橡胶二的下表面采用胶黏剂粘有预浸料固化片二，所述预浸料固化片的面密度为500±20g/m2，树脂含量为40%，挥发分含量为8%，所述预浸料固化片分为单层预浸料固化片和双层预浸料固化片，单层预浸料固化片的厚度为0.25±0.025mm，双层预浸料固化片的厚度为0.38±0.02mm。
所述多孔丁腈橡胶的厚度为0.35mm，面密度为570g/m2。
所述芳纶纸蜂窝的孔格尺寸为4.8mm，密度为48kg/m3，厚度为10mm。
本发明设计了一种强隔音芳纶纸蜂窝复合地板的制备方法，其特征在于：按照如下步骤进行制备：
步骤1：将双层玻纤酚醛预浸料放入热压机，进行固化处理，形成预浸料固化片；
步骤2：制备多孔丁腈橡胶；
步骤3：在光滑铝板表面均匀涂抹脱模剂，脱模剂用量为50~80ml/m2,5~10min后，采用环氧胶作为胶黏剂依次将预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝进行粘结，然后将铝板压于复合地板上，形成预制蜂窝地板。
步骤4：将步骤3制成的预制蜂窝地板放入热压机中，在固化温度为50℃，固化压力在0.2MPa的条件下固化80min，得到强隔音芳纶纸蜂窝复合地板。
所述步骤2中多孔丁腈橡胶的制备配方为：100phr的丁腈生胶，20~30phr的炭黑，促进剂， 5~10phr氧化锌（ZnO），5~10phr尿素，10~15phr增塑剂，1~5phr防老剂，硫化剂，10~15phr发泡剂。
所述的促进剂由0.5~1.5phr 2-硫醇基苯并噻唑（M），0.2~0.4phr 二乙基二硫代氨基甲酸锌（ZDC），2~5phr硬脂酸（HSt）组成；所述增塑剂为邻苯二甲酸二异壬酯（DINP）；所述防老剂为4010NA；所述硫化剂为1~5phr硫磺（S）和1~5phr过氧二异丙苯（DCP）；所述发泡剂为偶氮二甲酰胺（AC）。
所述多孔丁腈橡胶按照以下方法进行制备：
步骤a：将丁腈生胶加入到120~150℃的密炼机中，然后将炭黑、促进剂、硬脂酸、氧化锌和增塑剂混合均匀分批加入，混炼7min，在120~130℃的温度下进行排胶，之后在室温下冷却，形成丁腈母胶；
步骤b：在低温50~70℃的开炼机上，向丁腈母胶中加入发泡剂、硫化剂混炼，薄通3~5次后下片；
步骤c：在预热的模具中加入步骤b制得的下片丁腈母胶，然后在平板硫化机上进行加压加热硫化发泡，发泡条件为150~170℃，8~10MPa，发泡时间为10~15min，之后得到多孔丁腈橡胶。
本发明与现有技术相比，本发明以玻纤酚醛预浸料为面板，芳纶纸蜂窝为芯材，在面板与蜂窝芯材之间添加多孔丁腈橡胶，以环氧胶黏剂作为粘结材料，通过模压固化成型，得到强隔音芳纶纸蜂窝复合地板。本发明的芳纶纸蜂窝密度小，强度高，以其为芯材的复合地板可大大提高加速性能，降低制动功率；芳纶纸蜂窝保留了空气层，从而发挥其弹性减振作用及质量定律在高频的体现，增加临界频率隔声曲线的上升速率。而多孔丁腈橡胶的阻尼性能优良，可通过破坏与重建大分子链之间物理键以及分子链的运动、摩擦将声波作用下的声能逐渐转化成热能，从而大幅度衰减声波。发泡处理使得多孔丁腈橡胶内部产生大量的封闭气泡以及连通孔洞形成两相界面，当声波入射到两相界面时发生反射或折射及等现象，进而使得声波的传播路线发生改变，传播速度降低。反复传播使声能逐渐转换消耗，声波的衰减程度增加。再辅以环氧胶粘剂进行粘合，粘合方式紧密，有利于发挥多孔丁腈橡胶的阻尼特性，使得吻合谷深度得以大幅削减，使中频隔音量得到很好地提升，即粘合方式越紧密，计权隔声量也越高。
附图说明
图1为本发明预浸料固化片温度-压强曲线图。
具体实施方式
结合附图对本发明做进一步描述。
本发明设计了一种强隔音芳纶纸蜂窝复合地板，包括：预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝，芳纶纸蜂窝夹采用胶黏剂粘设在多孔丁腈橡胶一和多孔丁腈橡胶二之间，多孔丁腈橡胶一上表面采用胶黏剂粘有预浸料固化片一，多孔丁腈橡胶二的下表面采用胶黏剂粘有预浸料固化片二，所述预浸料固化片的面密度为500±20g/m2，树脂含量为40%，挥发分含量为8%，所述预浸料固化片分为单层预浸料固化片和双层预浸料固化片，单层预浸料固化片的厚度为0.25±0.025mm，双层预浸料固化片的厚度为0.38±0.02mm。
本发明中多孔丁腈橡胶的厚度为0.35mm，面密度为570g/m2。
本发明中芳纶纸蜂窝的孔格尺寸为4.8mm，密度为48kg/m3，厚度为10mm。
本发明设计了一种强隔音芳纶纸蜂窝复合地板的制备方法，按照如下步骤进行制备：
步骤1：将双层玻纤酚醛预浸料放入热压机，进行固化处理，形成预浸料固化片；
步骤2：制备多孔丁腈橡胶；
步骤3：在光滑铝板表面均匀涂抹脱模剂，脱模剂用量为50~80ml/m2,5~10min后，采用环氧胶作为胶黏剂依次将预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝进行粘结，然后将铝板压于复合地板上，形成预制蜂窝地板。
步骤4：将步骤3制成的预制蜂窝地板放入热压机中，在固化温度为50℃，固化压力在0.2MPa的条件下固化80min，得到强隔音芳纶纸蜂窝复合地板。
本发明中步骤2中多孔丁腈橡胶的制备配方为：100phr的丁腈生胶，20~30phr的炭黑，促进剂， 5~10phr氧化锌（ZnO），5~10phr尿素，10~15phr增塑剂，1~5phr防老剂，硫化剂，10~15phr发泡剂。
本发明中促进剂由0.5~1.5phr 2-硫醇基苯并噻唑（M），0.2~0.4phr 二乙基二硫代氨基甲酸锌（ZDC），2~5phr硬脂酸（HSt）组成；所述增塑剂为邻苯二甲酸二异壬酯（DINP）；所述防老剂为4010NA；所述硫化剂为1~5phr硫磺（S）和1~5phr过氧二异丙苯（DCP）；所述发泡剂为偶氮二甲酰胺（AC）。
本发明中多孔丁腈橡胶按照以下方法进行制备：
步骤a：将丁腈生胶加入到120~150℃的密炼机中，然后将炭黑、促进剂、硬脂酸、氧化锌和增塑剂混合均匀分批加入，混炼7min，在120~130℃的温度下进行排胶，之后在室温下冷却，形成丁腈母胶；
步骤b：在低温50~70℃的开炼机上，向丁腈母胶中加入发泡剂、硫化剂混炼，薄通3~5次后下片；
步骤c：在预热的模具中加入步骤b制得的下片丁腈母胶，然后在平板硫化机上进行加压加热硫化发泡，发泡条件为150~170℃，8~10MPa，发泡时间为10~15min，之后得到多孔丁腈橡胶。
参见图1，在具体的实施例中，温度由20℃升至80℃并保温40min，升温速率为1℃/min,压强为0.1MPa;然后将升温至120℃并保温60min，升温速率为2℃/min,压强为0.2MPa;最后升温至150℃并保温20min升温速率为2℃/min,压强为0.3MPa，从而制备出合格的预浸料固化片。
在具体实施中，实施例1：
步骤1：将双层玻纤酚醛预浸料放入热压机，进行固化处理，形成预浸料固化片；
步骤2：制备多孔丁腈橡胶；
步骤3：在光滑铝板表面均匀涂抹脱模剂，脱模剂用量为60ml/m2,5min后，采用环氧胶作为胶黏剂依次将预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝进行粘结，然后将铝板压于复合地板上，形成预制蜂窝地板。
步骤4：将步骤3制成的预制蜂窝地板放入热压机中，在固化温度为50℃，固化压力在0.2MPa的条件下固化80min，得到强隔音芳纶纸蜂窝复合地板。
实施例1中步骤2中多孔丁腈橡胶的制备配方为：100phr的丁腈生胶，25phr的炭黑，促进剂， 8phr氧化锌（ZnO），6phr尿素，10phr增塑剂，2phr防老剂，硫化剂，15phr发泡剂。
本发明中实施例1的促进剂由1phr 2-硫醇基苯并噻唑（M），0.2phr 二乙基二硫代氨基甲酸锌（ZDC），2phr硬脂酸（HSt）组成；所述增塑剂为邻苯二甲酸二异壬酯（DINP）；所述防老剂为4010NA；所述硫化剂为2phr硫磺（S）和2phr过氧二异丙苯（DCP）；所述发泡剂为偶氮二甲酰胺（AC）。
实施例1中多孔丁腈橡胶按照以下方法进行制备：
步骤a：将丁腈生胶加入到135℃的密炼机中，然后将炭黑、促进剂、硬脂酸、氧化锌和增塑剂混合均匀分批加入，混炼7min，在120℃的温度下进行排胶，之后在室温下冷却，形成丁腈母胶；
步骤b：在低温50℃的开炼机上，向丁腈母胶中加入发泡剂、硫化剂混炼，薄通5次后下片；
步骤c：在预热的模具中加入步骤b制得的下片丁腈母胶，然后在平板硫化机上进行加压加热硫化发泡，发泡条件为150℃，8MPa，发泡时间为15min，之后得到多孔丁腈橡胶。
在具体实施中，实施例2：
步骤1：将双层玻纤酚醛预浸料放入热压机，进行固化处理，形成预浸料固化片；
步骤2：制备多孔丁腈橡胶；
步骤3：在光滑铝板表面均匀涂抹脱模剂，脱模剂用量为80ml/m2,5min后，采用环氧胶作为胶黏剂依次将预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝进行粘结，然后将铝板压于复合地板上，形成预制蜂窝地板。
步骤4：将步骤3制成的预制蜂窝地板放入热压机中，在固化温度为50℃，固化压力在0.2MPa的条件下固化80min，得到强隔音芳纶纸蜂窝复合地板。
实施例2中步骤2中多孔丁腈橡胶的制备配方为：100phr的丁腈生胶，20phr的炭黑，促进剂， 10phr氧化锌（ZnO），5phr尿素，15phr增塑剂，4phr防老剂，硫化剂，12phr发泡剂。
实施例2中促进剂由1.5phr 2-硫醇基苯并噻唑（M），0.2phr 二乙基二硫代氨基甲酸锌（ZDC），4phr硬脂酸（HSt）组成；所述增塑剂为邻苯二甲酸二异壬酯（DINP）；所述防老剂为4010NA；所述硫化剂为2phr硫磺（S）和2phr过氧二异丙苯（DCP）；所述发泡剂为偶氮二甲酰胺（AC）。

Claims (7)

1.一种强隔音芳纶纸蜂窝复合地板，包括：预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝，其特征在于：芳纶纸蜂窝夹采用胶黏剂粘设在多孔丁腈橡胶一和多孔丁腈橡胶二之间，多孔丁腈橡胶一上表面采用胶黏剂粘有预浸料固化片一，多孔丁腈橡胶二的下表面采用胶黏剂粘有预浸料固化片二，所述预浸料固化片的面密度为500±20g/m2，树脂含量为40%，挥发分含量为8%，所述预浸料固化片分为单层预浸料固化片和双层预浸料固化片，单层预浸料固化片的厚度为0.25±0.025mm，双层预浸料固化片的厚度为0.38±0.02mm。
2.根据权利要求1所述的一种强隔音芳纶纸蜂窝复合地板，其特征在于：所述多孔丁腈橡胶的厚度为0.35mm，面密度为570g/m2。
3.根据权利要求1所述的一种强隔音芳纶纸蜂窝复合地板，其特征在于：所述芳纶纸蜂窝的孔格尺寸为4.8mm，密度为48kg/m3，厚度为10mm。
4.一种强隔音芳纶纸蜂窝复合地板的制备方法，其特征在于：按照如下步骤进行制备：
步骤1：将双层玻纤酚醛预浸料放入热压机，进行固化处理，形成预浸料固化片；
步骤2：制备多孔丁腈橡胶；
步骤3：在光滑铝板表面均匀涂抹脱模剂，脱模剂用量为50~80ml/m2,5~10min后，采用环氧胶作为胶黏剂依次将预浸料固化片、多孔丁腈橡胶和芳纶纸蜂窝进行粘结，然后将铝板压于复合地板上，形成预制蜂窝地板；
步骤4：将步骤3制成的预制蜂窝地板放入热压机中，在固化温度为50℃，固化压力在0.2MPa的条件下固化80min，得到强隔音芳纶纸蜂窝复合地板。
5.根据权利要求4所述的一种强隔音芳纶纸蜂窝复合地板的制备方法，其特征在于：所述步骤2中多孔丁腈橡胶的制备配方为：100phr的丁腈生胶，20~30phr的炭黑，促进剂， 5~10phr氧化锌（ZnO），5~10phr尿素，10~15phr增塑剂，1~5phr防老剂，硫化剂，10~15phr发泡剂。
6.根据权利要求5所述的一种强隔音芳纶纸蜂窝复合地板的制备方法，其特征在于：所述的促进剂由0.5~1.5phr 2-硫醇基苯并噻唑（M），0.2~0.4phr 二乙基二硫代氨基甲酸锌（ZDC），2~5phr硬脂酸（HSt）组成；所述增塑剂为邻苯二甲酸二异壬酯（DINP）；所述防老剂为4010NA；所述硫化剂为1~5phr硫磺（S）和1~5phr过氧二异丙苯（DCP）；所述发泡剂为偶氮二甲酰胺（AC）。
7.根据权利要求4所述的一种强隔音芳纶纸蜂窝复合地板的制备方法，其特征在于：所述多孔丁腈橡胶按照以下方法进行制备：
步骤a：将丁腈生胶加入到120~150℃的密炼机中，然后将炭黑、促进剂、硬脂酸、氧化锌和增塑剂混合均匀分批加入，混炼7min，在120~130℃的温度下进行排胶，之后在室温下冷却，形成丁腈母胶；
步骤b：在低温50~70℃的开炼机上，向丁腈母胶中加入发泡剂、硫化剂混炼，薄通3~5次后下片；
步骤c：在预热的模具中加入步骤b制得的下片丁腈母胶，然后在平板硫化机上进行加压加热硫化发泡，发泡条件为150~170℃，8~10MPa，发泡时间为10~15min，之后得到多孔丁腈橡胶。
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CN105733051A (zh) * 2016-03-03 2016-07-06 淄博迪卡普电子商务有限公司 一种低烟无卤橡塑保温材料的制备工艺

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CN107718849A (zh) * 2017-11-23 2018-02-23 中山市科力高自动化设备有限公司 一种高强度轻量化的蜂窝复合板制备方法
CN109855968A (zh) * 2019-03-15 2019-06-07 北京航空航天大学 一种芳纶纸面内压缩力学性能测试方法
CN109855968B (zh) * 2019-03-15 2020-07-10 北京航空航天大学 一种芳纶纸面内压缩力学性能测试方法
CN113829678A (zh) * 2021-09-27 2021-12-24 上海骏珲新材料科技有限公司 一种轻质隔音复合板及其制备方法

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