CN109265101A - 一种凝固式水泥夹芯板及其制备方法 - Google Patents
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Abstract
本发明公开了一种凝固式水泥夹芯板,包括水泥砂浆层、蜂窝铝层和纤维网格布,水泥砂浆层分为上砂浆层和下砂浆层,上砂浆层和下砂浆层分别凝固于蜂窝铝层的上下面,两层水泥砂浆层中填充有一层纤维网格布,水泥砂浆层和蜂窝铝层之间形成一层相交凝固层;本发明还公开了一种凝固式水泥夹芯板的制备方法;本发明的优点及效果在于:本发明不仅制造工艺简单,资金及设备投入少,成本低,而且采用该制备方法所制出的凝固式水泥夹芯板具有吸水率降低、强度高、韧性好和耐久性高等优点。比使用强力胶的胶粘式更环保、强度更高,因水泥与蜂窝铝的粘结面积更深而且均匀,有效的避免了胶水老化、生产涂胶不均匀、气候、温度、湿度等因素的影响。
Description
技术领域
本发明属于建筑及装饰材料技术领域,具体涉及一种凝固式水泥夹芯板及其制备方法。
背景技术
水泥夹芯板在建筑及装饰使用中起着重要的作用,对其既要强度高,又要保温、防水、防火,性能稳定,任何单一填充料的组织结构均不能满足上述要求。
市场上现有夹芯板技术中,木丝水泥夹芯板或硅酸钙夹芯板都是使用强力胶粘结的胶粘式夹芯板;粘结层容易老化造成分离,而且遇水容易发胀变形等缺点。
发明内容
针对现有技术中的不足之处,本发明提供一种凝固式水泥夹芯板。本发明是在水泥凝固前把蜂窝铝均匀受力压在水泥浆上,等待水泥凝固后,蜂窝铝与水泥成为一体,并且使蜂窝铝成为水泥板的受力支撑结构。
为了上述目的,本发明技术方案如下:
一种凝固式水泥夹芯板,包括水泥砂浆层、蜂窝铝层和纤维网格布,水泥砂浆层分为上砂浆层和下砂浆层,上砂浆层和下砂浆层分别凝固于蜂窝铝层的上下面,两层水泥砂浆层中填充有一层纤维网格布,水泥砂浆层和蜂窝铝层之间形成一层相交凝固层。
优选的,所述上砂浆层和下砂浆层的厚度均为5~10mm。
优选的,所述蜂窝铝层的厚度均为10~30mm。
优选的,所述纤维网格布采用低碱玻璃纤维。
本发明提供了另一种技术方案如下:
一种凝固式水泥夹芯板的制备方法,包括如下步骤:
步骤1)在成型模具内铺设一层水泥砂浆,接着在铺好的水泥砂浆上铺设一层纤维网格布,在铺设好的一层纤维网格布上再铺设一层蜂窝铝,然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;
步骤2)在成型模具内铺设一层水泥砂浆,接着在铺好的一层水泥砂浆上铺设一层纤维网格布,再将步骤1)完成的水泥板带蜂窝铝的一面覆盖在上面,然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;脱模后每隔3小时喷洒水雾养护24小时,即得到强度高的凝固式水泥夹芯板。
所述水泥砂浆的组分为:水泥30~50%、40~70目河沙30~50%、水10~25%、混凝土减水剂0.4~0.8%、增强纤维0.3~0.6%、增稠剂1.87~2.6%。
所述增稠剂为为纤维素醚类有机增稠剂、丙烯类有机增稠剂中一种
所述液压处理的压力可以是25~40MPa。
有益效果:本发明的凝固式夹芯比使用强力胶的胶粘式更环保;凝固式夹芯比胶粘式的强度更高,因水泥与蜂窝铝的粘结面积更深而且均匀,有效的避免了胶水老化、生产涂胶不均匀、气候、温度、湿度等因素的影响。水泥砂浆层中填充的纤维网格布,可提高水泥砂浆层结构的稳定性、强度以及抗裂性。本发明板材因耐候性高,环保、尺寸可预制及可以随意切割,可广泛用于装饰及户内、户外家具行业。
附图说明
图1为本发明的凝固式水泥夹芯板截面的结构示意图。
图2为本发明的蜂窝铝层剖面的结构示意图。
图中,1-蜂窝铝层,2-水泥砂浆层,3-相交凝固层,4-纤维网格布。
具体实施方式
以下参照具体的实施例来说明本发明。本领域技术人员能够理解,这些实施例仅用于说明本发明,其不以任何方式限制本发明的范围。
实施例1 一种凝固式水泥夹芯板
该凝固式水泥夹芯板,如图1所示,包括水泥砂浆层2、蜂窝铝层1和纤维网格布4,水泥砂浆层2分为上砂浆层和下砂浆层,蜂窝铝层1上下面分别凝固有一上砂浆层和一下砂浆层,两层水泥砂浆层中填充有低碱玻璃纤维网格布4,水泥砂浆层2和蜂窝铝层1之间形成有一层相交凝固层3。
作为一种实施方式,上砂浆层和下砂浆层的厚度为8mm;蜂窝铝层的厚度均为20mm。
实施例2 一种凝固式水泥夹芯板的制备方法
该制备方法通过以下步骤实现:
先在制作好的模具(尺寸为1220×1220×25mm)内铺设一层水泥砂浆a(铺设厚度为8mm),接着在铺好的水泥砂浆a上铺设一层纤维网格布1(尺寸为1200×1200mm),在铺设好的一层纤维网格布1上再铺设第一层蜂窝铝(铺设厚度为20mm),然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;
在另一成型模具(尺寸为1220×1220×33mm)内铺设一层水泥砂浆b(铺设厚度为8mm),接着在铺好的水泥砂浆b上铺设一层纤维网格布2(尺寸为1200×1200mm),再将上述完成的水泥板带蜂窝铝的一面覆盖在上面,然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;脱模后每隔3小时喷洒水雾养护24小时,即得到强度高的凝固式水泥夹芯板。
所述水泥砂浆a、b的组分为:水泥38.5%、40~70目河沙38.5%、水20.34%、混凝土减水剂0.49%、增强纤维0.30%、增稠剂1.87%,其中各组分之和等于100%。其中,所述水泥为硅酸钙水泥。
所述纤维网格布1、2采用玻璃纤维网格布。
所述增稠剂采用丙烯类有机增稠剂。
所述液压处理的压力为32Mpa。
所述水泥砂浆a、b的厚度是8mm,蜂窝铝的厚度可以是20mm。
实施例3 一种凝固式水泥夹芯板的制备方法
该制备方法,除下述特征外,其他特征与实施例2相同:
所述水泥砂浆a、b的组分为:水泥33.2%、40~70目河沙39%、水25%、混凝土减水剂0.5%、增强纤维0.30%、增稠剂2%。其中,所述水泥为52.5R普通水泥。
所述增稠剂采用纤维素醚类有机增稠剂。
所述液压处理的压力为28MPa。
所述水泥砂浆a、b的厚度是5mm,蜂窝铝的厚度可以是10mm。
实施例4 一种凝固式水泥夹芯板的制备方法
该制备方法,除下述特征外,其他特征与实施例2相同:
所述水泥砂浆a、b的组分为:水泥44%、40~70目河沙39%、水12.5%、混凝土减水剂0.55%、增强纤维0.35%、增稠剂2.6%,其中,所述水泥为42.5R硫铝酸盐。
所述液压处理的压力为40MPa。
所述水泥砂浆a、b的厚度是10mm,蜂窝铝的厚度可以是30mm。
实施例5 一种凝固式水泥夹芯板的制备方法
该制备方法,除下述特征外,其他特征与实施例2相同:
所述水泥砂浆a、b的组分为:水泥30%、40~70目河沙50%、水17%、混凝土减水剂0.6%、增强纤维0.40%、增稠剂2.0%,其中,所述水泥为42.5R硫铝酸盐。
所述液压处理的压力为30MPa。
所述水泥砂浆a、b的厚度是8mm,蜂窝铝的厚度可以是15mm。
如上所述,便可较好地实现本发明。上述实施例为本发明较佳的实施方式,但本发明的实施方式并不受上述实施例的限制,其他的任何未背离本发明的精神实质与原理下所作的改变、修饰、替代、组合、简化,均应为等效的置换方式,都包含在本发明的保护范围之内。
Claims (8)
1.一种凝固式水泥夹芯板,其特征在于:包括水泥砂浆层、蜂窝铝层和纤维网格布,水泥砂浆层分为上砂浆层和下砂浆层,上砂浆层和下砂浆层分别凝固于蜂窝铝层的上下面,两层水泥砂浆层中填充有一层纤维网格布,水泥砂浆层和蜂窝铝层之间形成一层相交凝固层。
2.如权利要求1所述的凝固式水泥夹芯板,其特征在于:所述上砂浆层和下砂浆层的厚度均为5~10mm。
3.如权利要求1所述的凝固式水泥夹芯板,其特征在于:所述蜂窝铝层的厚度均为10~30mm。
4.如权利要求1所述的凝固式水泥夹芯板,其特征在于:所述纤维网格布采用低碱玻璃纤维。
5.一种凝固式水泥夹芯板的制备方法,其特征在于:包括如下步骤:
步骤1)在成型模具内铺设一层水泥砂浆,接着在铺好的水泥砂浆上铺设一层纤维网格布,在铺设好的一层纤维网格布上再铺设一层蜂窝铝,然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;
步骤2)在成型模具内铺设一层水泥砂浆,接着在铺好的一层水泥砂浆上铺设一层纤维网格布,再将步骤1)完成的水泥板带蜂窝铝的一面覆盖在上面,然后将模具连带材料放进液压机内加压至蜂窝铝沉入砂浆3mm后静止,待水泥砂浆在自然环境下凝固4小时后脱去模具;脱模后每隔3小时喷洒水雾养护24小时,即得到强度高的凝固式水泥夹芯板。
6.如权利要求5所述的凝固式水泥夹芯板的制备方法,其特征在于:所述水泥砂浆的组分为:水泥30~50%、40~70目河沙30~50%、水10~25%、混凝土减水剂0.4~0.8%、增强纤维0.3~0.6%、增稠剂1.87~2.6%。
7.如权利要求5所述的凝固式水泥夹芯板的制备方法,其特征在于:所述增稠剂为为纤维素醚类有机增稠剂、丙烯类有机增稠剂中一种。
8.如权利要求5所述的凝固式水泥夹芯板的制备方法,其特征在于:所述液压处理的压力可以是25~40MPa。
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