CN113442240B - 一种抗剥离生态板及其制备方法 - Google Patents
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Abstract
本发明涉及一种抗剥离生态板及其制备方法,包括从上至下依次由净醛三聚氰胺贴面层、阻燃防火层、碳纤维防剥离层、实木芯板、防水层、三聚氰胺贴面层,其特征在于:所述的净醛三聚氰胺贴面层采用三聚氰胺改性树脂和净醛分解液浸渍,所述的碳纤维防剥离层通过将碳纤维热压在实木芯板上复合而成,采用碳纤维增强杨木的抗弯强度与抗形变性能,其浸渍剥离<20mm,通过甲壳素包覆纳米银,从而避免纳米银发生氧化变色,其耐光色牢度达到5级,利用纳米氧化锌,聚乙烯醇改性三聚氰胺树脂,其胶合强度>1.10MPa,甲醛释放量<0.2mg·L‑1。
Description
技术领域
本发明属于家具板材技术领域,具体为一种抗剥离生态板及其制备方法。
背景技术
近年来,居室空气质量备受关注,国家推出强制性标准GB 50325-2010《民用建筑工程室内环境污染控制规范》要求室内空气中甲醛≤0.08mg/m3、TVOC≤0.5mg/m3,随着该标准的贯彻实施和人们对居室空气质量环保意识的不断提高,人们对居室装饰装修材料的环保性能要求越来越高,普通生态板所用于压贴胶合的胶黏剂多为含有甲醛的三聚氰胺树脂胶或酚醛树脂胶,胶接性能优良,但从中游离出来的甲醛会使室内空气质量恶化,对老幼、体弱者或孕妇产生健康隐患。
现有专利号为ZL 201510408081.3的中国专利公布了一种含有改性阻燃剂的阻燃热熔胶,其有益效果是将分解甲醛的有效成分均匀分布于装饰胶膜纸的表层和内部,然后再和基材按压贴工艺胶合。本发明的净醛抗菌生态板成本低,效果好,依据国家建材标准JC/T 1074-2008规定的方法检测,甲醛净化效率可达到75%以上,甲醛净化效果持久性大于60%,但仍存在以下缺点:通过将甲醛分解有效成分溶于装饰纸上,其有效成分包括甲醛分解有效成分、氨基树脂和纳米银,由于纳米银的光敏效应很强,极易发生氧化变色,从而影响装饰纸的装饰效果,且所用芯板为细木工板芯或普通胶合板,在外部温度和湿度的变化下容易收缩,引起表面胶膜在张力的情况下产生剥离现象。
发明内容
本发明解决的问题在于提供一种抗剥离生态板及其制备方法,其解决了纳米银在装饰纸易变色,芯板在外部温度和湿度的变化下产生剥离现象等问题,制备的抗剥离生态板的性能指标优良,满足应用需求。
为解决上述技术问题,本发明的技术方案为:
一种抗剥离生态板,包括从上至下依次由净醛三聚氰胺贴面层、阻燃防火层、碳纤维防剥离层、实木芯板、防水层、三聚氰胺贴面层,其特征在于:所述的净醛三聚氰胺贴面层采用三聚氰胺改性树脂和净醛分解液浸渍,所述的阻燃防火层采用邻苯二甲酸二缩水甘油酯与阻燃剂制成,所述的碳纤维防剥离层采用碳纤维热压在实木芯板上复合而成,所述的实木芯板采用三层杨木热压复合形成,所述的防水层采用微晶地板防水蜡涂覆而成。
作为优选,所述的阻燃剂的成分为高硼硼酸钙、硼酸锌、四溴双酚A,所述的高硼硼酸钙:硼酸锌:四溴双酚A的质量比33:22~25:42~45。
作为优选,所述的碳纤维防剥离层的制备方法,包括以下步骤:
a)称取环氧树脂E51溶解在50℃的纯水中,加入碳纤维,混合搅拌10min,所述的环氧树脂E51:碳纤维的质量比为2:1~1.2,混合溶液记为A,称取三亚乙基四胺与碳纤维混合搅拌10min,所述的三亚乙基四胺:碳纤维的质量比为2:1~1.2,混合溶液记为B,将混合溶液B倒入混合溶液A中,所述的环氧树脂E51:三亚乙基四胺的质量比为20:3~4,混合搅拌20min,得到碳纤维浸渍胶;
b)利用涂胶机将碳纤维浸渍胶涂覆在实木芯板表面,通过将碳纤维布裁剪成与实木芯板尺寸大小一致,通过将裁剪后的碳纤维布与实木芯板进行热压复合;
c)利用涂胶机将碳纤维浸渍胶涂覆在碳纤维布表面,从而得到碳纤维防剥离层。
作为优选,所述的实木芯板的制备方法,包括以下步骤:
a)将杨木原料制成锯材,放置于180℃的窑炉室内进行高温热处理干燥,每隔1小时进行锯材含水率测定,当杨木锯材含水率小于12%时取出,放入堆放区进行调质处理,使其含水率均匀化;
b)采用热压机对杨木进行热压处理,热压前控制表层板含水率在6~7%,芯层板含水率在7~8%,底层板含水率在4~5%,将热压后的实木芯板置于温度为40℃、湿度为30%的环境下陈化3天。
作为优选,所述的实木芯板上表面与下表面设置有若干等距分布的向内凹陷的半圆槽。
一种抗剥离生态板的制备方法,其特征在于,包括如下步骤:
a)得到实木芯板与碳纤维防剥离层;
b)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯:阻燃剂的质量比为20:3~4,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在碳纤维防剥离层表面,将涂覆后的生态板置于70℃下固化1h,得到阻燃防火层;
c)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:0.8~1,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,从而得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:1~2:5~6,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板的碳纤维防剥离层上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压操作,得到防水层;
d)将三聚氰胺贴面浸置于三聚氰胺改性树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层表面进行热压,从而得到抗剥离生态板。
作为优选,所述的三聚氰胺改性树脂的制备方法,包括如下步骤:
a)称取定量的纳米氧化锌倒入纯水中,混合搅拌20min,加入到乙二醇溶液中混合搅拌10min,得到混合溶液A,所述的乙二醇:纳米氧化锌的质量比为20:1~1.3;
b)称取一定量的三聚氯氰,加入氢氧化钾调节pH值至在9~10后,依次加入聚乙烯醇、三聚氰胺,所述的聚乙烯醇:三聚氰胺:三聚氯氰的质量比为175:75:22~24,升温到40℃,加入混合溶液A,所述的乙二醇:三聚氯氰的质量比为10:1~2,升温到78℃,保持pH值在8.5以上,混合搅拌3h,得到三聚氰胺改性树脂。
作为优选,所述的净醛分解液由按照重量份数计的下列组分组成,甲壳素包裹纳米银1~1.2份、石墨烯1.5~2份、聚丙烯酸丁酯乳液700份
作为优选,所述的甲壳素包裹纳米银的制备方法,包括如下步骤:称取一定量甲壳素溶解于醋酸溶液中,其质量分数为0.5%,加入0.05mol/ml的硝酸银溶液混合搅拌,所述的甲壳素:硝酸银的质量比为1~2:10,混合搅拌20min,加入含氨25%的氨水,所述的硝酸银:氨水的质量比为1:1.2~1.4,利用透析管进行透析作业,得到甲壳素包裹纳米银。
本发明的优点和积极效果是:
(1)采用高硼硼酸钙、硼酸锌、四溴双酚A作为阻燃剂,通过高硼硼酸钙代替部分硼酸锌,从而提高阻燃剂整体阻燃效果。
(2)采用碳纤维增强杨木的抗弯强度与抗形变性能,从而避免杨木在外部温度和湿度的变化下发生收缩,致使各层出现剥离。
(3)通过控制各层杨木板的含水率,从而消除木材的各向异性,提高复合地板在使用过程中的稳定。
(4)通过在实木芯板上表面与下表面设置有半圆槽,从而提高碳纤维与实木芯板的接触面积,进一步提高生态板的抗剥离能力。
(5)采用纳米氧化锌,聚乙烯醇改性三聚氰胺树脂,达到增韧改性效果,并减少生态板中游离甲醛和VOCs的排放。
(6)采用甲壳素包覆纳米银,从而避免纳米银发生氧化变色,利用聚丙烯酸丁酯乳液与三聚氰胺改性树脂发生交联,从而更好附着在三聚氰胺贴面上。
附图说明
下面结合附图和实施例对本发明进一步说明。
图1是本发明的结构示意图。
附图中标记分述如下:1、净醛三聚氰胺贴面层;2、阻燃防火层;3、碳纤维防剥离层;4、实木芯板;5、防水层;6、三聚氰胺贴面层。
具体实施方式
为了进一步了解本发明,下面结合实施例对本发明优选实施方案进行描述,但是应当理解,这些描述只是为进一步说明本发明的特征和优点,而不是对本发明权利要求的限制。
以下结合附图对本发明实施例做进一步详述:
如图1所示,本发明的一种抗剥离生态板,包括从上至下依次由净醛三聚氰胺贴面层1、阻燃防火层2、碳纤维防剥离层3、实木芯板4、防水层5、三聚氰胺贴面层6,其特征在于:所述的净醛三聚氰胺贴面层1采用三聚氰胺改性树脂和净醛分解
液浸渍,所述的阻燃防火层2采用邻苯二甲酸二缩水甘油酯与阻燃剂制成,所述的碳纤维防剥离层3采用碳纤维热压在实木芯板4上复合而成,所述的实木芯板4采用三层杨木热压复合形成,所述的防水层5采用微晶地板防水蜡涂覆而成。
在一种实施例中,所述的阻燃剂的成分为高硼硼酸钙、硼酸锌、四溴双酚A,所述的高硼硼酸钙:硼酸锌:四溴双酚A的质量比33:22~25:42~45,通过硼酸锌促进高硼硼酸钙的分解,使得高硼硼酸钙与四溴双酚A尽快复配,起到更好的阻燃效果。
在一种实施例中,所述的碳纤维防剥离层3的制备方法,包括以下步骤:
a)称取环氧树脂E51溶解在50℃的纯水中,加入碳纤维,混合搅拌10min,所述的环氧树脂E51:碳纤维的质量比为2:1~1.2,混合溶液记为A,称取三亚乙基四胺与碳纤维混合搅拌10min,所述的三亚乙基四胺:碳纤维的质量比为2:1~1.2,混合溶液记为B,将混合溶液B倒入混合溶液A中,所述的环氧树脂E51:三亚乙基四胺的质量比为20:3~4,混合搅拌20min,得到碳纤维浸渍胶;
b)利用涂胶机将碳纤维浸渍胶涂覆在实木芯板4表面,,通过将碳纤维布裁剪成与实木芯板4尺寸大小一致,通过将裁剪后的碳纤维布与实木芯板4进行热压复合,使碳纤维浸渍胶充分浸透碳纤维布;
c)利用涂胶机将碳纤维浸渍胶涂覆在碳纤维布表面,从而得到碳纤维防剥离层3,通过环氧树脂E51与三亚乙基四胺将碳纤维与杨木表面的的凹凸和空隙紧连在一起,从而提高实木芯板4的抗弯强度与抗形变性能。
在一种实施例中,所述的实木芯板4的制备方法,包括以下步骤:
a)将杨木原料制成锯材,放置于180℃的窑炉室内进行高温热处理干燥,每隔1小时进行锯材含水率测定,当杨木锯材含水率小于12%时取出,放入堆放区进行调质处理,使其含水率均匀化;
b)采用热压机对杨木进行热压处理,热压前控制表层板含水率在6~7%,芯层板含水率在7~8%,底层板含水率在4~5%,将热压后的实木芯板4置于温度为40℃、湿度为30%的环境下陈化3天,使各层及各点的含水率获得平衡,通过控制各层杨木板之间的含水率,确保表层板、芯层板和底层板的含水率搭配合理,经过调质、陈化处理,减小木材内部的应力,以确保三层板含水率均匀一致,从而提高地板的稳定性。
在一种实施例中,所述的实木芯板4上表面与下表面设置有若干等距分布的向内凹陷的半圆槽,通过增大碳纤维与实木芯板4之间的接触面积,使得更多的碳纤维能够嵌入在实木芯板4缝隙内,从而进一步提高实木芯板4的抗弯强度与抗形变性能。
一种抗剥离生态板的制备方法,包括以下步骤:
a)称取定量的纳米氧化锌倒入纯水中,混合搅拌20min,加入到乙二醇溶液中混合搅拌10min,得到混合溶液A,所述的乙二醇:纳米氧化锌的质量比为20:1~1.3;
b)称取一定量的三聚氯氰,加入氢氧化钾调节pH值至在9~10后,依次加入聚乙烯醇、三聚氰胺,所述的聚乙烯醇:三聚氰胺:三聚氯氰的质量比为175:75:22~24,升温到40℃,加入混合溶液A,所述的乙二醇:三聚氯氰的质量比为10:1~2,升温到78℃,保持pH值在8.5以上,混合搅拌3h,得到三聚氰胺改性树脂;
c)称取一定量甲壳素溶解于醋酸溶液中,其质量分数为0.5%,加入0.05mol/ml的硝酸银溶液混合搅拌,所述的甲壳素:硝酸银的质量比为1~2:10,混合搅拌20min,加入含氨25%的氨水,所述的硝酸银:氨水的质量比为1:1.2~1.4,利用透析管进行透析作业,得到甲壳素包裹纳米银;
d)按照重量份数称取甲壳素包裹纳米银1~1.2份、石墨烯1.5~2份、聚丙烯酸丁酯乳液700份,混合制备净醛分解液;
e)得到实木芯板4与碳纤维防剥离层3;
f)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯:阻燃剂的质量比为20:3~4,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在碳纤维防剥离层3表面,将涂覆后的生态板置于70℃下固化1h,得到阻燃防火层2;
g)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:0.8~1,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,从而得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:1~2:5~6,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板的碳纤维防剥离层3上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压作用,得到防水层5;
h)将三聚氰胺贴面浸置于三聚氰胺改性树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层2表面进行热压,从而得到抗剥离生态板。
实例1
a)称取定量的纳米氧化锌倒入纯水中,混合搅拌20min,加入到乙二醇溶液中混合搅拌10min,得到混合溶液A,所述的乙二醇:纳米氧化锌的质量比为20:1;
b)称取一定量的三聚氯氰,加入氢氧化钾调节pH值至在9~10后,依次加入聚乙烯醇、三聚氰胺,所述的聚乙烯醇:三聚氰胺:三聚氯氰的质量比为175:75:22,升温到40℃,加入混合溶液A,所述的乙二醇:三聚氯氰的质量比为10:1,升温到78℃,保持pH值在8.5以上,混合搅拌3h,得到三聚氰胺改性树脂;
c)称取一定量甲壳素溶解于醋酸溶液中,其质量分数为0.5%,加入0.05mol/ml的硝酸银溶液混合搅拌,所述的甲壳素:硝酸银的质量比为1:10,混合搅拌20min,加入含氨25%的氨水,所述的硝酸银:氨水的质量比为1:1.2~1.4,利用透析管进行透析作业,得到甲壳素包裹纳米银;
d)按照重量份数称取甲壳素包裹纳米银1份、石墨烯1.5份、聚丙烯酸丁酯乳液700份,混合制备净醛分解液;
e)得到实木芯板4与碳纤维防剥离层3;
f)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯:阻燃剂的质量比为20:3,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在碳纤维防剥离层3表面,将涂覆后的生态板置于70℃下固化1h,得到阻燃防火层2;
g)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:0.8,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,从而得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:1:5,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板的碳纤维防剥离层3上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压操作,得到防水层(5);
h)将三聚氰胺贴面浸置于三聚氰胺改性树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层2表面进行热压,从而得到抗剥离生态板。
实例2
a)称取定量的纳米氧化锌倒入纯水中,混合搅拌20min,加入到乙二醇溶液中混合搅拌10min,得到混合溶液A,所述的乙二醇:纳米氧化锌的质量比为20:1.3;
b)称取一定量的三聚氯氰,加入氢氧化钾调节pH值至在9~10后,依次加入聚乙烯醇、三聚氰胺,所述的聚乙烯醇:三聚氰胺:三聚氯氰的质量比为175:75:24,升温到40℃,加入混合溶液A,所述的乙二醇:三聚氯氰的质量比为10:2,升温到78℃,保持pH值在8.5以上,混合搅拌3h,得到三聚氰胺改性树脂;
c)称取一定量甲壳素溶解于醋酸溶液中,其质量分数为0.5%,加入0.05mol/ml的硝酸银溶液混合搅拌,所述的甲壳素:硝酸银的质量比为2:10,混合搅拌20min,加入含氨25%的氨水,所述的硝酸银:氨水的质量比为1:1.4,利用透析管进行透析作业,得到甲壳素包裹纳米银;
d)按照重量份数称取甲壳素包裹纳米银1.2份、石墨烯2份、聚丙烯酸丁酯乳液700份,混合制备净醛分解液;
e)得到实木芯板4与碳纤维防剥离层3;
f)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯:阻燃剂的质量比为20:4,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在碳纤维防剥离层3表面,将涂覆后的生态板置于70℃下固化1h,得到阻燃防火层2;
g)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:1,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,从而得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:2:6,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板的碳纤维防剥离层3上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压操作,得到防水层5;
h)将三聚氰胺贴面浸置于三聚氰胺改性树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层2表面进行热压,从而得到抗剥离生态板。
对比例1
a)按照重量份数称取纳米银1份与氨基树脂胶液,混合制备净醛分解液;
b)根据所述的实木芯板的制备方法制备实木芯板;
c)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯与阻燃剂的质量比为20:3,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在实木芯板表面,将涂覆后的生态板置于70℃下固化1h,从而制得阻燃防火层2;
d)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:0.8,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,从而得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:1:5,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压操作,得到防水层5;
e)将三聚氰胺贴面浸置于三聚氰胺树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,从而得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层表面进行热压,从而得到抗剥离生态板。
对比例2
a)将十二烷基磺酸钠溶液加入硝酸银水溶液中获得混合液,所述的十二烷基磺酸钠与硝酸银的摩尔比为2:1;
b)将混合液加热至45~55℃,加入冠醚和含有碱金属的还原剂,其中冠醚与硝酸银的摩尔比为1:1;其中含有碱金属的还原剂与硝酸银的摩尔比为0.5:1,加热至70~85℃,持续搅拌5min,控制pH值为8~9,得到纳米银;
c)基材砂光;
d)将甲壳素、纳米硅片、纳米银、电气石粉和氨基树脂充分混合并搅拌均匀获得甲醛分解胶液,其中甲壳素与纳米硅片占甲醛分解胶液的质量比为5%,其中电气石粉占甲醛分解有效成分质量的5%,搅拌时间5min;
c)将装饰纸依次通过三聚氰胺甲醛树脂和甲醛分解胶液,烘干;
d)在基材的一面贴装饰胶膜纸后,进行压贴,冷却后,再与另一侧装饰胶膜纸压贴。
产品检测如表:
测试项目 | 实施例1 | 实施例2 | 对比例1 | 对比例2 | 测试标准 |
浸渍剥离/mm | 11 | 18 | 75 | 82 | GB/T17657-2013 |
耐光色牢度 | 5级 | 5级 | 4级 | 4级 | GB/T17657-2013 |
胶合强度/MPa | 1.15 | 1.18 | 0.48 | 0.56 | GB/T17657-2013 |
甲醛释放量/mg·L<sup>-1</sup> | 0.13 | 0.17 | 0.45 | 0.38 | GB18580 |
从表中可以看出,实施例1-2采用碳纤维增强杨木的抗弯强度与抗形变性能,其浸渍剥离<20mm,通过甲壳素包覆纳米银,从而避免纳米银发生氧化变色,其耐光色牢度达到5级,利用纳米氧化锌,聚乙烯醇改性三聚氰胺树脂,其胶合强度>1.10MPa,甲醛释放量<0.2mg·L-1,而对比例1热熔胶,其浸渍剥离较差为75mm,且胶合强度仅为0.48MPa,对比例2采用甲壳素、纳米硅片、纳米银、电气石粉和氨基树脂作为甲醛分解胶液,其耐光色牢度仅为4级,甲醛释放量为0.38mg·L-1。
本发明的优点和积极效果是:
本发明提供一种铝塑管用阻燃热熔胶及其制备方法,采用高硼硼酸钙、硼酸锌、四溴双酚A作为阻燃剂,通过高硼硼酸钙代替部分硼酸锌,从而提高阻燃剂整体阻燃效果,采用碳纤维增强杨木的抗弯强度与抗形变性能,从而避免杨木在外部温度和湿度的变化下发生收缩,致使各层出现剥离,通过控制各层杨木板的含水率,从而消除木材的各向异性,提高复合地板在使用过程中的稳定,通过在实木芯板4上表面与下表面设置有半圆槽,从而提高碳纤维与实木芯板的接触面积,进一步提高生态板的抗剥离能力,采用纳米氧化锌,聚乙烯醇改性三聚氰胺树脂,达到增韧改性效果,并减少生态板中游离甲醛和VOCs的排放,采用甲壳素包覆纳米银,从而避免纳米银发生氧化变色,利用聚丙烯酸丁酯乳液与三聚氰胺改性树脂发生交联,从而更好附着在三聚氰胺贴面上,采用碳纤维增强杨木的抗弯强度与抗形变性能,其浸渍剥离<20mm,通过甲壳素包覆纳米银,从而避免纳米银发生氧化变色,其耐光色牢度达到5级,利用纳米氧化锌,聚乙烯醇改性三聚氰胺树脂,其胶合强度>1.10MPa,甲醛释放量<0.2mg·L-1。以上述依据本发明的实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。
Claims (5)
1.一种抗剥离生态板,包括从上至下依次由净醛三聚氰胺贴面层(1)、阻燃防火层(2)、碳纤维防剥离层(3)、实木芯板(4)、防水层(5)、三聚氰胺贴面层(6),其特征在于:所述的净醛三聚氰胺贴面层(1)采用三聚氰胺改性树脂和净醛分解液浸渍,所述的阻燃防火层(2)采用邻苯二甲酸二缩水甘油酯与阻燃剂制成,所述的碳纤维防剥离层(3)采用碳纤维热压在实木芯板
(4)上复合而成,所述的实木芯板(4)采用三层杨木热压复合形成,所述的防水层(5)采用微晶地板防水蜡涂覆而成;
所述的阻燃剂的成分为高硼硼酸钙、硼酸锌、四溴双酚A,所述的高硼硼酸钙:硼酸锌:四溴双酚A的质量比33:22~25:42~45;
所述的实木芯板(4)上表面与下表面设置有若干等距分布的向内凹陷的半圆槽;
所述净醛分解液的组分组成为甲壳素包裹纳米银、石墨烯、聚丙烯酸丁酯乳液。
2.一种抗剥离生态板的制备方法,其特征在于,包括如下步骤:
a)得到实木芯板(4)和碳纤维防剥离层(3):
所述的碳纤维防剥离层(3)的制备方法:
a)称取环氧树脂E51溶解在50℃的纯水中,加入碳纤维,混合搅拌10min,所述的环氧树脂E51:碳纤维的质量比为2:1~1.2,混合溶液记为A,称取三亚乙基四胺与碳纤维混合搅拌10min,所述的三亚乙基四胺:碳纤维的质量比为2:1~1.2,混合溶液记为B,将混合溶液B倒入混合溶液A中,所述的环氧树脂E51:三亚乙基四胺的质量比为20:3~4,混合搅拌20min,得到碳纤维浸渍胶;
b)利用涂胶机将碳纤维浸渍胶涂覆在实木芯板(4)表面,将碳纤维布裁剪成与实木芯板(4)尺寸大小一致,将裁剪后的碳纤维布与实木芯板(4)进行热压复合;
c)利用涂胶机将碳纤维浸渍胶涂覆在碳纤维布表面,从而得到
碳纤维防剥离层(3);
所述的实木芯板(4)的制备方法,包括以下步骤:
a)将杨木原料制成锯材,放置于180℃的窑炉室内进行高温热处理干燥,每隔1小时进行锯材含水率测定,当杨木锯材含水率小于12%时取出,放入堆放区进行调质处理,使其含水率均匀化;
b)采用热压机对杨木进行热压处理,热压前控制表层板含水率在6~7%,芯层板含水率在7~8%,底层板含水率在4~5%,将热压后的实木芯板(4)置于温度为40℃、湿度为30%的环境下陈化3天;
b)称取邻苯二甲酸二缩水甘油酯倒入乙酸乙酯中,混合搅拌5min,加入阻燃剂,所述的邻苯二甲酸二缩水甘油酯:阻燃剂的质量比为20:3~4,混合搅拌10min后,置于真空烘箱内,去除乙酸乙酯,加入低分子量聚酰胺混合搅拌后,涂覆在碳纤维防剥离层(3)表面,将涂覆后的生态板置于70℃下固化1h,得到阻燃防火层(2);
c)称取脱油蜡、蜡下油在60℃下混合搅拌,所述的脱油蜡:蜡下油的质量比为3:0.8~1,加入十二烷基硫酸钠与棕榈酸65℃下混合搅拌15min,得到微晶地板防水蜡,所述的脱油蜡:十二烷基硫酸钠:棕榈酸的质量比为10:1~2:5~6,利用涂胶机将熔融态的微晶地板防水蜡涂覆在底层板的碳纤维防剥离层(3)上,将三聚氰胺贴面铺装在微晶地板防水蜡上,采用热压机进行热压操作,得到防水层(5);
d)将三聚氰胺贴面浸置于三聚氰胺改性树脂和净醛分解液的混合溶液中45min,在80℃下固化1.5h,得到净醛三聚氰胺贴面,采用热压机将净醛三聚氰胺贴面在阻燃防火层(2)表面进行热压,从而得到抗剥离生态板。
3.根据权利要求2所述的一种抗剥离生态板的制备方法,其特征在于:所述的三聚氰胺改性树脂的制备方法,包括如下步骤:
a)称取定量的纳米氧化锌倒入纯水中,混合搅拌20min,加入到乙二醇溶液中混合搅拌10min,得到混合溶液A,所述的乙二醇:纳米氧化锌的质量比为20:1~1.3;
b)称取一定量的三聚氯氰,加入氢氧化钾调节pH值至在9~10后,依次加入聚乙烯醇、三聚氰胺,所述的聚乙烯醇:三聚氰胺:三聚氯氰的质量比为175:75:22~24,升温到40℃,加入混合溶液A,所述的乙二醇:三聚氯氰的质量比为10:1~2,升温到78℃,保持pH值在8.5以上,混合搅拌3h,得到三聚氰胺改性树脂。
4.根据权利要求2所述的一种抗剥离生态板的制备方法,其特征在于:所述的净醛分解液由按照重量份数计的下列组分组成,甲壳素包裹纳米银1~1.2份、石墨烯1.5~2份、聚丙烯酸丁酯乳液700份。
5.根据权利要求4所述的一种抗剥离生态板的制备方法,其特征在于:所述的甲壳素包裹纳米银的制备方法,包括如下步骤:称取一定量甲壳素溶解于醋酸溶液中,其质量分数为0.5%,加入0.05mol/ml的硝酸银溶液混合搅拌,所述的甲壳素:硝酸银的质量比为1~2:10,混合搅拌20min,加入含氨25%的氨水,所述的硝酸银:氨水的质量比为1:1.2~1.4,利用透析管进行透析作业,得到甲壳素包裹纳米银。
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