CN110748074A - Lvl结构三聚氰胺纸饰面新型板材及其制作方法 - Google Patents
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Abstract
本发明属于集成板材技术领域,具体涉及一种LVL结构三聚氰胺纸饰面新型板材及其制作方法,LVL结构三聚氰胺纸饰面新型板材,包括LVL结构层,由LVL结构层向外,依次附有木单板I、木单板II、木皮,木单板II表面贴有三聚氰胺纸。本发明以LVL实木单板为基材,采用特殊生产工艺加工复合而成,属新型高科技建筑装饰材料,克服传统板材存在的缺陷问题,性能卓越,结构稳定,大大降低了板材的变形翘曲几率。健康环保,满足现代环保要求,无毒、无味、无甲醛、隔音,可广泛用于医疗空间、教育空间、办公空间、商业空间、居家空间等。
Description
技术领域
本发明涉及一种LVL结构三聚氰胺纸饰面新型板材及其制作方法,属于集成板材技术领域。
背景技术
原有的室内装饰板材料:细木工板、夹板、刨花板、密度板使用寿命较短,容易出现返潮、掉皮、发霉、脱落、开裂等现象,很多人认为是使用过程中造成的,其实是技术含量低的建筑材料所导致。另外现有的板材在环保、隔音、外观等方面存在问题,使用效果不佳。
发明内容
根据以上现有技术中的不足,本发明要解决的技术问题是:提供一种具有性能稳定、不易变形、机械强度高、防刮擦、防震、耐气候性强、抗冲击性强、抗龟裂起鼓能力强、低静电不易吸附粉灰尘、无毒、无味、无甲醛的LVL结构三聚氰胺纸饰面新型板材,及其制作方法。
本发明所述的LVL结构三聚氰胺纸饰面新型板材,包括LVL结构层,由LVL结构层向外,依次附有木单板I、木单板II、木皮,木单板II表面贴有三聚氰胺纸。
所述的LVL结构层上下两面冲有破纤维槽。
所述的破纤维槽呈井字形分布。
所述的破纤维槽的深度为1~5mm。
LVL结构层、木单板I、木单板II、三聚氰胺纸之间通过少量无醛胶黏合,竖向木片形成的LVL结构层稳固,并且通过木单板I、木单板II也可以将LVL结构层的各木片拉住,实现结构稳定性,可以承受各个方向施加的力。LVL结构层的上下两面破纤维处理,破纤维槽的制作可以使用垂直于板材纤维方向或其他方向的刀片冲压,能够有效的将板材表面的生长纤维破断,减少板材自身应力对变形的影响,大大降低了板材的变形几率。再者,由于本发明避免了纤维板、颗粒板等内部粉末状结构,因此用胶量大大减少,环保系数高,满足现代环保要求。
本发明还避免了密度板等粉末状结构吸收水分后膨胀系数较大的缺陷,防潮性较好。
声波穿过本发明时,形成多次跨介质传播(空气--木单板II--木单板I--LVL结构层--单板I--木单板II—空气,中间还夹杂无醛胶胶层),大大提高了板材的隔音性能,使其用于制作门或墙板时隔音性能好,使用效果佳。
本发明的LVL结构三聚氰胺纸饰面新型板材的制作方法,包括以下步骤:
①将厚度为1~3mm的木板经干燥、双面均匀涂成型胶后,按顺纹组坯依次粘贴,再经热压胶合,形成LVL结构层;
②经过切割成块后,在LVL结构层正反双面均匀涂成型胶,之后在正反双面铺贴厚度1~2mm的木单板I,经热压处理成型;
③热压处理后取出双面砂光,砂光后正反双面均匀涂成型胶,铺贴厚度1~2mm的木单板II,木单板II的纤维走向与第一次铺贴的木单板I的纤维走向成横竖交叉型,铺贴完后再次热压处理成型;增加板材的各向同性,使板材更为坚固,进一步提高结构稳定性和机械强度;
④热压处理后取出再次双面砂光,砂光完成后将一层三聚氰胺纸平铺,将步骤③制得的板材放在所述的三聚氰胺纸上,在板材上再平铺一层三聚氰胺纸,将板材上下两面的三聚氰胺纸热压成型。
当木材含水率过高时,木材会排湿收缩,反之会吸湿膨胀,且相邻的木片的含水率差不宜太大,将木材含水率偏差控制在2%以内,可以有效地减少木材的干缩应力。因此,在所述步骤①中,干燥后的木材含水率控制在9.5%~11%之间,热压胶合的温度为100~120℃,热压压力为1.5~2.5MPa,热压时间为60S~120S。
其中,在所述步骤②中,经过切割成块后,LVL结构层的上下表面的粗糙度可等同于砂光后的效果,即满足单板粘贴要求,热压处理的温度为100~120℃,热压压力为1.5~2.5MPa,由于粗糙度较高,热压时间可以缩短为30S~60S,即可达到所需的黏附强度。
其中,在所述步骤③中,砂光后的粗糙度Ra为30~50;热压处理的温度为100~120℃,热压压力为1.5~2.5MPa,热压时间为30S~60S。
其中,在所述步骤④中,三聚氰胺纸作为板材的外饰面,因此粘附三聚氰胺纸的木单板II的粗糙度不宜过高,保证三聚氰胺纸平整性,因此砂光后的粗糙度Ra为15~30;热压如果温度太高,树脂将不能均匀地流动和固化,从而在表面上产生微小的孔,并且通过提高热压温度以提高产量来缩短热压时间也有弊端,那就是纸饰面很容易反弹并且不光滑。只有在适当的温度和压力的作用下,三聚氰胺装饰纸中的树脂熔化并固化,形成一个封闭且致密的表面,并且基材的表面也可以被填充,从而有效提升了产品的质量与性能,因此热压处理的温度控制在130~160℃,热压压力为1~1.2MPa,有利于压后脱模,可缩短热压时间,提高成品率,在保证质量的前提下,热压时间为15S~30S,可有效提高生产效率。
本发明与现有技术相比所具有的有益效果是:
本发明所述的LVL结构三聚氰胺纸饰面新型板材,本发明可广泛用于医疗空间、教育空间、办公空间、商业空间、居家空间等。以性能优异、结构稳定的LVL实木单板为基材,采用特殊生产工艺加工复合而成,具有防刮擦、防震、隔音、耐气候性强、抗冲击性强、抗龟裂起鼓能力强、低静电不易吸附粉灰尘、无毒、无味、无甲醛等优点。
在干冷和潮湿天气,LVL结构三聚氰胺纸饰面新型板材性能始终稳固如一,耐高温40℃—80℃,耐低温-40℃—-60℃,不会变形、***,可以正常使用;
LVL结构三聚氰胺纸饰面新型板材表面密度为0.8-1.2g/cm3,减轻了建筑荷重,使建筑内墙重量降低60%以上,质轻有利于结构抗震。
本发明属新型高科技建筑装饰材料,克服传统板材存在的缺陷问题。性能卓越,结构稳定,LVL结构层的上下两面冲有破纤维槽,有效的将板材表面的生长纤维破断,减少板材自身应力对变形的影响,大大降低了板材的变形、翘曲几率。相较于一般常见板材具有高强度机械性能,不易产生形变,在抗冲击、抗压、抗拉和抗断性能上表现出色,抗冲击强度可达到25MP。
健康环保,零甲醛释放,无化工原料添加,采用EO级环保原料制备,使用无醛胶,甲醛含量极低≤0.034mg/m3、环保系数高,达到国内标准的E0级(甲醛释放量≤0.5mg/L),达到日本F系列的F4星级(甲醛释放量≤0.3mg/L),满足现代环保要求。给人们创造一个绿色、健康、舒适的学习、工作、生活环境。基材为天然的植物纤维,不含石棉、甲醛及有害挥发性污染物,无毒、无异味。
节能降耗,该基材重量轻,破损率低,耐用寿命长,安装轻便,可以用于装配式建筑,施工速度快,减少材料和能源浪费,减少了整体成本投入,既减少材料和能源浪费,又降低整体成本投入,充分体现了资源节约效益,具有明显的社会经济效益。
附图说明
图1是本发明的结构示意图。
图中:1、三聚氰胺纸;2、木单板II;3、木单板I;4、破纤维槽;5、LVL结构层。
具体实施方式
下面结合实施例对本发明做进一步描述:
如图1所示,本发明所述的LVL结构三聚氰胺纸饰面新型板材,包括LVL结构层5,由LVL结构层5向外,依次附有木单板I3、木单板II2,木单板II2表面贴有三聚氰胺纸1。
其中,LVL结构层5的厚度为12mm,木单板I3、木单板II2的厚度为2mm,忽略三聚氰胺纸1厚度,板材整体厚度为20mm。
本实施例的LVL结构层5上下两面通过冲刀冲有破纤维槽4。
本实施例的破纤维槽5呈井字形分布。
本实施例的破纤维槽5的深度为2mm。
所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,包括以下步骤:
①将厚度为1~3mm的木板经干燥、双面均匀涂成型胶后,按顺纹组坯依次粘贴,再经热压胶合,形成LVL结构层;
②经过切割成块后,在LVL结构层正反双面均匀涂成型胶,之后在正反双面铺贴厚度1~2mm的木单板I,经热压处理成型;
③热压处理后取出双面砂光,砂光后正反双面均匀涂成型胶,铺贴厚度1~2mm的木单板II,木单板II的纤维走向与第一次铺贴的木单板I的纤维走向成横竖交叉型,铺贴完后再次热压处理成型;
④热压处理后取出再次双面砂光,砂光完成后将一层三聚氰胺纸平铺,将步骤③制得的板材放在所述的三聚氰胺纸上,在板材上再平铺一层三聚氰胺纸,将板材上下两面的三聚氰胺纸热压成型。
步骤①中,干燥后的木材含水率为10%左右,热压胶合的温度为105℃,热压压力为1.7MPa,热压时间为90S。
步骤②中,热压处理的温度为105℃,热压压力为1.7MPa,热压时间为45S。
步骤③中,砂光后的粗糙度Ra为40;热压处理的温度为105℃,热压压力为1.7MPa,热压时间为45S。
步骤④中,砂光后的粗糙度Ra为20;热压处理的温度为145℃,热压压力为1.1MPa,热压时间为20S。
LVL结构贴木皮UV饰面新型装饰板主要质量技术指标:
本发明以LVL实木单板为基材,采用特殊生产工艺加工复合而成,属新型高科技建筑装饰材料,克服传统板材存在的缺陷问题,性能卓越,结构稳定,大大降低了板材的变形翘曲几率。健康环保,满足现代环保要求,无毒、无味、无甲醛、隔音,本实施例的隔音量为42~46db,平均可以达到44db,而相同条件下,普通纤维板、实木颗粒板隔音量为20~23db和18~22db。本发明综合性能优异,可广泛用于医疗空间、教育空间、办公空间、商业空间、居家空间等。
Claims (9)
1.一种LVL结构三聚氰胺纸饰面新型板材,其特征在于:包括LVL结构层(5),由LVL结构层(5)向外,依次附有木单板I(3)、木单板II(2),木单板II(2)表面贴有三聚氰胺纸(1)。
2.根据权利要求1所述的LVL结构三聚氰胺纸饰面新型板材,其特征在于:所述的LVL结构层(5)上下两面冲有破纤维槽(4)。
3.根据权利要求2所述的LVL结构三聚氰胺纸饰面新型板材,其特征在于:所述的破纤维槽(4)呈井字形分布。
4.根据权利要求2所述的LVL结构三聚氰胺纸饰面新型板材,其特征在于:所述的破纤维槽(4)的深度为1~5mm。
5.一种权利要求1所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,其特征在于包括以下步骤:
①将厚度为1~3mm的木板经干燥、双面均匀涂成型胶后,按顺纹组坯依次粘贴,再经热压胶合,形成LVL结构层;
②经过切割成块后,在LVL结构层正反双面均匀涂成型胶,之后在正反双面铺贴厚度1~2mm的木单板I,经热压处理成型;
③热压处理后取出双面砂光,砂光后正反双面均匀涂成型胶,铺贴厚度1~2mm的木单板II,木单板II的纤维走向与第一次铺贴的木单板I的纤维走向成横竖交叉型,铺贴完后再次热压处理成型;
④热压处理后取出再次双面砂光,砂光完成后将一层三聚氰胺纸平铺,将步骤③制得的板材放在所述的三聚氰胺纸上,在板材上再平铺一层三聚氰胺纸,将板材上下两面的三聚氰胺纸热压成型。
6.根据权利要求5所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,其特征在于:所述步骤①中,干燥后的木材含水率为9.5%~11%,热压胶合的温度为100~120℃,热压压力为1.5~2.5MPa,热压时间为60S~120S。
7.根据权利要求5所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,其特征在于:所述步骤②中,热压处理的温度为100~120℃,热压压力为1.5~2.5MPa,热压时间为30S~60S。
8.根据权利要求5所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,其特征在于:所述步骤③中,砂光后的粗糙度Ra为30~50;热压处理的温度为100~120℃,热压压力为1.5~2.5MPa,热压时间为30S~60S。
9.根据权利要求5所述的LVL结构三聚氰胺纸饰面新型板材的制作方法,其特征在于:所述步骤④中,砂光后的粗糙度Ra为15~30;热压处理的温度为130~160℃,热压压力为1~1.2MPa,热压时间为15S~30S。
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