CN107214784A - 一种无醛阻燃高强木工板的制备方法 - Google Patents

一种无醛阻燃高强木工板的制备方法 Download PDF

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CN107214784A
CN107214784A CN201710618234.6A CN201710618234A CN107214784A CN 107214784 A CN107214784 A CN 107214784A CN 201710618234 A CN201710618234 A CN 201710618234A CN 107214784 A CN107214784 A CN 107214784A
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CN107214784B (zh
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李丹丹
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Fujian Yisite Furniture Technology Co.,Ltd.
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Abstract

本发明公开了一种无醛阻燃高强木工板的制备方法,包括以下步骤:步骤一、制作木工芯板条,步骤二、浸泡阻燃剂,步骤三、涂胶制板,步骤四、面板制备,步骤五、组坯成品。本发明采用了多种粘结胶剂,全部不含甲醛、苯系物等有毒有害物质,通过对材料的阻燃处理,使得木工板的防火耐高温性能大大增强,通过分层热压,实现了紧密贴合,大大提高了材料的机械强度,同时本发明的采用了大量木材废弃物,节约了资源,降低了成本,具有较高的实用价值和良好的应用前景。

Description

一种无醛阻燃高强木工板的制备方法
技术领域
本发明涉及建筑装潢材料技术领域,具体涉及一种无醛阻燃高强木工板的制备方法。
背景技术
无论是过去、现在还是未来的较长时间内,细木工板仍将是建筑室内装修、家具制作等的主要材料。目前市场上销售的产品主要是用脲醛树脂胶生产的,有此生产的细木工板会释放出对人身、居住环境有害的甲醛。国家对销售的产品有强制性的标准,其甲醛释放量必须达到规定的要求。为达到标准要求,生产企业使用通过改性的脲醛树脂胶粘剂进行生产,使细木工板的甲醛释放量大为降低,但这一措施不能完全消除甲醛的释放,在较大量使用的情况下,释放的甲醛对室内环境的污染还是较为严重的。而且,脲醛树脂胶粘剂释放的甲醛,不仅是本身含有的游离甲醛的释放,还有脲醛树脂会分解出甲醛而释放出来,因为尿素和甲醛反应生成脲醛树脂是一个可逆的化学反应,在较长的时间内会不断的有甲醛释放。
另一方面,细木工板是目前室内装饰、建筑装修、家具制作等的主要材料。细木工板的制作是由杨木或杉木等的小径材、边角料制成的板芯,两边用杨木或桉木等的单板通过一次热压胶合和再用杨木或奥古曼等的木皮,通过二次热压胶合制成。但由于细木工板的易燃性,存在较大的火险隐患,故须进行阻燃处理。
发明内容
针对现有技术的缺陷,本发明的目的是提供一种无醛阻燃高强木工板的制备方法,该制备方法采用了多种粘结胶剂,全部不含甲醛、苯系物等有毒有害物质,通过对材料的阻燃处理,使得木工板的防火耐高温性能大大增强,通过分层热压,实现了紧密贴合,大大提高了材料的机械强度,同时本发明的采用了大量木材废弃物,节约了资源,降低了成本,具有较高的实用价值和良好的应用前景。
本发明解决技术问题采用如下技术方案:
本发明提供了一种无醛阻燃高强木工板的制备方法,包括以下步骤:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为3-7cm,厚度为5-9cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为2-4个大气压下加压浸泡10-20分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为110-120℃,压力为5-7kg/cm2,热压时间为7-9分钟,卸压后在温度为35-37℃,湿度为78-82%RH的条件养护处理5-9天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在0.8-1.6mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为114-118℃,压力为1.4-1.8MPa下热压5-7分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为0.7-1.3MPa,预压时间10-14分钟,再热压,热压温度120-130℃,热压压力1.2-1.4MPa,热压时间为5-7分钟,自然冷却,养护2-4天,得到无醛阻燃高强木工板。
优选地,所述步骤二中的阻燃剂溶液包含以下重量份的原料:氢氧化镁7-9份、氢氧化铝4-8份、聚磷酸铵0.6-1.4份、八溴醚1-2份、水30-40份。
优选地,所述步骤三中无醛环保胶粘剂包含以下重量份的原料:甲酸1-3份、聚乙烯醇9-11份、丙烯酸5-7份、六亚甲基四胺3-5份、纳米二氧化硅1-3份、水5-9份。
优选地,所述步骤五中植物性增强胶包含以下重量份的原料:淀粉10-20份、糯米汁4-6份、聚醋酸乙烯乳液15-25份、聚乙烯醇8-12份。
优选地,所述步骤五中的布胶量为270-300g/平米双面。
优选地,所述步骤五中的养护条件为:温度40-44℃,湿度为65-75%RH。
优选地,所述步骤五还包括锯边和砂光工序。
优选地,所述无醛阻燃高强木工板的制备步骤为:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为5cm,厚度为7cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为3个大气压下加压浸泡15分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为115℃,压力为6kg/cm2,热压时间为8分钟,卸压后在温度为36℃,湿度为80%RH的条件养护处理7天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在1.2mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为116℃,压力为1.6MPa下热压6分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为1MPa,预压时间12分钟,再热压,热压温度125℃,热压压力1.3MPa,热压时间为6分钟,自然冷却,养护3天,得到无醛阻燃高强木工板。
与现有技术相比,本发明具有如下的有益效果:
(1)本发明的一种无醛阻燃高强木工板的制备方法,采用了大量的木材加工边角料制备芯板木条,节约了资源,保护了环境,降低了成本,同时对边角料进行剔除杂质和加工缺陷后,提高了整体的质量,对其进行的漂白和杀菌使得制备的板材更加安全环保。
(2)本发明的一种无醛阻燃高强木工板的制备方法中对材料进行了阻燃处理,使得制备的板材具有一定的阻燃性能,同时阻燃剂大量使用了氢氧化镁、氢氧化铝,其具有阻燃性能强、抑烟和防霉变作用。
(3)本发明的一种无醛阻燃高强木工板的制备方法中选用了无醛环保胶粘剂,主要为甲酸、聚乙烯醇、丙烯酸、六亚甲基四胺、纳米二氧化硅,其不含任何甲醛,苯系物,也不含可能出现游离甲醛的物质,使得制备的板材无毒无味,对环境无污染。
(4)本发明的一种无醛阻燃高强木工板的制备方法还对每步制备的板材进行湿热养护,降低了后期开裂的可能性,使得材料不易变形,大大提高了板材的使用寿命。
(5)本发明的一种无醛阻燃高强木工板的制备方法采用了多种粘结胶剂,全部不含甲醛、苯系物等有毒有害物质,通过对材料的阻燃处理,使得木工板的防火耐高温性能大大增强,通过分层热压,实现了紧密贴合,大大提高了材料的机械强度,同时本发明的采用了大量木材废弃物,节约了资源,降低了成本,具有较高的实用价值和良好的应用前景。
具体实施方式
下面结合具体实施例,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.
本实施例的一种无醛阻燃高强木工板的制备方法,包括以下步骤:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为3cm,厚度为5cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为2个大气压下加压浸泡10分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为110℃,压力为5kg/cm2,热压时间为7分钟,卸压后在温度为35℃,湿度为78%RH的条件养护处理5天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在0.8mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为114℃,压力为1.4MPa下热压5分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为0.7MPa,预压时间10分钟,再热压,热压温度120℃,热压压力1.2MPa,热压时间为5分钟,自然冷却,养护2天,得到无醛阻燃高强木工板。
本实施例中的骤二中的阻燃剂溶液包含以下重量份的原料:氢氧化镁7份、氢氧化铝4份、聚磷酸铵0.6份、八溴醚1份、水30份。
本实施例中的步骤三中无醛环保胶粘剂包含以下重量份的原料:甲酸1份、聚乙烯醇9份、丙烯酸5份、六亚甲基四胺3份、纳米二氧化硅1份、水5份。
本实施例中的步骤五中植物性增强胶包含以下重量份的原料:淀粉10份、糯米汁4份、聚醋酸乙烯乳液15份、聚乙烯醇8份。
本实施例中的步骤五中的布胶量为270g/平米双面。
本实施例中的步骤五中的养护条件为:温度40℃,湿度为65%RH。
本实施例中的步骤五还包括锯边和砂光工序。
实施例2.
本实施例的一种无醛阻燃高强木工板的制备方法,包括以下步骤:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为7cm,厚度为9cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为4个大气压下加压浸泡20分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为120℃,压力为7kg/cm2,热压时间为9分钟,卸压后在温度为37℃,湿度为82%RH的条件养护处理9天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在1.6mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为118℃,压力为1.8MPa下热压7分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为1.3MPa,预压时间14分钟,再热压,热压温度130℃,热压压力1.4MPa,热压时间为7分钟,自然冷却,养护4天,得到无醛阻燃高强木工板。
本实施例中的骤二中的阻燃剂溶液包含以下重量份的原料:氢氧化镁9份、氢氧化铝8份、聚磷酸铵1.4份、八溴醚2份、水40份。
本实施例中的步骤三中无醛环保胶粘剂包含以下重量份的原料:甲酸3份、聚乙烯醇11份、丙烯酸7份、六亚甲基四胺5份、纳米二氧化硅3份、水9份。
本实施例中的步骤五中植物性增强胶包含以下重量份的原料:淀粉20份、糯米汁6份、聚醋酸乙烯乳液25份、聚乙烯醇12份。
本实施例中的步骤五中的布胶量为300g/平米双面。
本实施例中的步骤五中的养护条件为:温度44℃,湿度为75%RH。
本实施例中的步骤五还包括锯边和砂光工序。
实施例3.
本实施例的一种无醛阻燃高强木工板的制备方法,包括以下步骤:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为5cm,厚度为7cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为3个大气压下加压浸泡15分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为115℃,压力为6kg/cm2,热压时间为8分钟,卸压后在温度为36℃,湿度为80%RH的条件养护处理7天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在1.2mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为116℃,压力为1.6MPa下热压6分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为1MPa,预压时间12分钟,再热压,热压温度125℃,热压压力1.3MPa,热压时间为6分钟,自然冷却,养护3天,得到无醛阻燃高强木工板。
本实施例中的骤二中的阻燃剂溶液包含以下重量份的原料:氢氧化镁8份、氢氧化铝6份、聚磷酸铵1份、八溴醚1.5份、水35份。
本实施例中的步骤三中无醛环保胶粘剂包含以下重量份的原料:甲酸2份、聚乙烯醇10份、丙烯酸6份、六亚甲基四胺4份、纳米二氧化硅2份、水7份。
本实施例中的步骤五中植物性增强胶包含以下重量份的原料:淀粉15份、糯米汁5份、聚醋酸乙烯乳液20份、聚乙烯醇10份。
本实施例中的步骤五中的布胶量为285g/平米双面。
本实施例中的步骤五中的养护条件为:温度42℃,湿度为70%RH。
本实施例中的步骤五还包括锯边和砂光工序。
本发明的一种无醛阻燃高强木工板的制备方法采用了多种粘结胶剂,全部不含甲醛、苯系物等有毒有害物质,通过对材料的阻燃处理,使得木工板的防火耐高温性能大大增强,通过分层热压,实现了紧密贴合,大大提高了材料的机械强度,同时本发明的采用了大量木材废弃物,节约了资源,降低了成本,具有较高的实用价值和良好的应用前景。
对于本领域技术人员而言,显然本发明不限于上述示范性实施例的细节,而且在不背离本发明的精神或基本特征的情况下,能够以其他的具体形式实现本发明。因此,无论从哪一点来看,均应将实施例看作是示范性的,而且是非限制性的,本发明的范围由所附权利要求而不是上述说明限定,因此旨在将落在权利要求的等同要件的含义和范围内的所有变化囊括在本发明内。
此外,应当理解,虽然本说明书按照实施方式加以描述,但并非每个实施方式仅包含一个独立的技术方案,说明书的这种叙述方式仅仅是为清楚起见,本领域技术人员应当将说明书作为一个整体,各实施例中的技术方案也可以经适当组合,形成本领域技术人员可以理解的其他实施方式。

Claims (8)

1.一种无醛阻燃高强木工板的制备方法,其特征在于,包括以下步骤:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为3-7cm,厚度为5-9cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为2-4个大气压下加压浸泡10-20分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为110-120℃,压力为5-7kg/cm2,热压时间为7-9分钟,卸压后在温度为35-37℃,湿度为78-82%RH的条件养护处理5-9天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在0.8-1.6mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为114-118℃,压力为1.4-1.8MPa下热压5-7分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为0.7-1.3MPa,预压时间10-14分钟,再热压,热压温度120-130℃,热压压力1.2-1.4MPa,热压时间为5-7分钟,自然冷却,养护2-4天,得到无醛阻燃高强木工板。
2.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤二中的阻燃剂溶液包含以下重量份的原料:氢氧化镁7-9份、氢氧化铝4-8份、聚磷酸铵0.6-1.4份、八溴醚1-2份、水30-40份。
3.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤三中无醛环保胶粘剂包含以下重量份的原料:甲酸1-3份、聚乙烯醇9-11份、丙烯酸5-7份、六亚甲基四胺3-5份、纳米二氧化硅1-3份、水5-9份。
4.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤五中植物性增强胶包含以下重量份的原料:淀粉10-20份、糯米汁4-6份、聚醋酸乙烯乳液15-25份、聚乙烯醇8-12份。
5.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤五中的布胶量为270-300g/平米双面。
6.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤五中的养护条件为:温度40-44℃,湿度为65-75%RH。
7.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述步骤五还包括锯边和砂光工序。
8.根据权利要求1所述的一种无醛阻燃高强木工板的制备方法,其特征在于,所述制备步骤为:
步骤一、制作木工芯板条:选用木材加工边角料,剔除杂质和加工缺陷后,加入双氧水中漂白,送入紫外线消毒机中,充分杀毒,制成宽为5cm,厚度为7cm的木条;
步骤二、浸泡阻燃剂:将步骤一制备的木条加入阻燃剂溶液中,在压强为3个大气压下加压浸泡15分钟,将浸泡后的木条送入烘干机中烘干;
步骤三、涂胶制板;将步骤二中制备的木条各个面上涂抹无醛环保胶粘剂,用细木工拼板机将芯板条拼成细木工芯板毛坯,再送入热压机中在温度为115℃,压力为6kg/cm2,热压时间为8分钟,卸压后在温度为36℃,湿度为80%RH的条件养护处理7天,然后将处理好的细木工芯板毛坯上砂光机砂光,制成阻燃细木工芯板;
步骤四、面板制备:选用木材刨切单板,厚度在1.2mm,将其表面涂抹阻燃树脂胶,与中密度纤维板,在温度为116℃,压力为1.6MPa下热压6分钟得到面板;
步骤五、组坯成品:将步骤三制备的木工芯板表面涂布植物性增强胶,与步骤四制备的面板,组合送入热压机中,先预压,压力为1MPa,预压时间12分钟,再热压,热压温度125℃,热压压力1.3MPa,热压时间为6分钟,自然冷却,养护3天,得到无醛阻燃高强木工板。
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