CN116061523A - 一种复合板材制品 - Google Patents

一种复合板材制品 Download PDF

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CN116061523A
CN116061523A CN202211655289.1A CN202211655289A CN116061523A CN 116061523 A CN116061523 A CN 116061523A CN 202211655289 A CN202211655289 A CN 202211655289A CN 116061523 A CN116061523 A CN 116061523A
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composite
adhesive
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film
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李新雄
纵榜佩
张冬明
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Bonfurt New Materials Co ltd
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Abstract

本发明涉及C09J7/29领域，更具体地，本发明涉及一种复合板材制品，包括依次层叠的复合膜、胶粘剂层和基材，其中，与胶粘剂层接触的复合膜一面含有羟基反应基团。本发明中复合板材制品中，与胶粘剂层接触的复合膜一面含有羟基反应基团，可实现双重固化，除了UV固化或者烘烤自干外，还可以在后续粘贴基材的过程中，与胶粘剂层之间进行交联固化，大大的提高了与后续基材的结合能力；且附着力、耐水煮性好，无溶剂，符合环保的要求。

Description

一种复合板材制品
技术领域
本发明涉及C09J7/29领域，更具体地，本发明涉及一种复合板材制品。
背景技术
在将复合膜应用在材料表面具有一定的装饰性，起到美化、着色等作用。目前的复合膜在使用时固化时间长，且粘合力不高，复合膜对基材的适应性较差。例如中国专利CN202020354600提供了一种高硬度硬化膜，包括贴合层、硬化层、薄膜层、保护层，其在使用时不仅存在粘附性差，同时着色效果差，纹理效果差，大大降低了该硬化膜的应用效果，降低其装饰效果。
发明内容
针对现有技术中存在的一些问题，本发明第一个方面提供了一种复合板材制品，包括依次层叠的复合膜、胶粘剂层和基材，其中，与胶粘剂层接触的复合膜一面含有羟基反应基团。
在一种实施方式中，所述胶粘剂层中的胶粘剂为聚氨酯胶粘剂。
优选的，所述聚氨酯胶粘剂为PUR热熔胶和/或双组份聚氨酯胶粘剂；更优选为PUR热熔胶。
本申请中与胶粘剂层接触的复合膜一面含有羟基反应基团，在与胶粘剂层复合，尤其是胶粘剂层原料为PUR热熔胶时，复合膜与胶粘剂之间进行化学交联固化，大大提高了与后续基材的结合能力。且本申请中复合膜与胶粘剂层之间的附着力佳，耐水煮性良好，且PUR热熔胶可流水线生产，定位好，无溶剂环保，粘接力强。
此外，本申请中整体复合膜与胶粘剂层构成一个整体，与基材的贴合性高，平整贴合性好。
在一种实施方式中，所述基材选自密度板、木质板、无机板、PVC板、铝板及其他高分子材料板；复合板材制品广泛应用于家具、家电、墙板、地板等领域。
密度板包括高密度纤维板、中密度纤维板和低密度纤维板等；
木质板包括实木板、多层实木板、实木夹芯板和竹材板等；
无机板包括硅酸钙板、硅酸镁板、玻镁板、菱镁板、纤维水泥板、石膏板、纤维增强硅酸钙板、纤维增强氧化镁板、轻质氯镁水泥板、纤维水泥压力板、高密度纤维水泥板、纤维增强硅酸盐防火板、植物纤维水泥挂板、无机复合板等；
PVC板包括SPC基板、LVT基板、LVP基板和WPC基板等。
其他高分子材料板包括PP板、PVC板等。
在一种实施方式中，所述复合膜为依次层叠的N层复合膜，N≥3。
优选的，所述复合膜包括着色层和/或图纹层。
优选的，所述着色层包括透明着色层和/或实色遮蔽层。
在一种实施方式中，所述着色层中含有羟基反应基团，与复合板材制品中的胶粘剂层接触。
优选的，所述透明着色层、实色遮蔽层的每道涂层的厚度为5-100μm，优选10-20μm。
本申请中透明着色层、实色遮蔽层的着色原料以及主体涂层原料本领域技术人员可做常规选择。
优选的，所述复合膜的表层为UV硬化层；该UV硬化层使得复合板材制品具有较好的抗刮擦性、耐溶剂和耐化学品性、手感、耐污性、抗指纹、硬度等特性。
在一种实施方式中，着色层和UV硬化层之间设置有基础膜层。
本申请中基础膜层的厚度为50-750μm，材料的种类本领域技术人员可根据实际需要进行常规选择，例如PP、PETG、PVC、PET、PC、GAG、PMMA、ABS等。
在一种实施方式中，当复合膜包括UV硬化层、基础膜层、透明着色层或实色遮蔽涂层时，所述复合膜的制备工艺：基础膜层→涂布硬化液→固化→覆保护膜→翻面→涂布得到UV透明着色层或实色遮蔽涂层→固化→收卷。
当复合膜包括UV硬化膜层、基础膜层、透明着色层、实色遮蔽涂层时，复合膜的制备工艺包括：基础膜层→涂布硬化液→固化→覆保护膜→翻面→涂布得到UV透明着色层→半固化→涂布实色遮蔽涂层→固化→收卷。
在一种实施方式中，图纹层包括图纹粘接层和图纹结构层。
优选的，所述图纹层粘结层的原料为胶粘剂。
本申请中图纹结构层通过图纹层粘结层与上道涂层进行粘接。
在一种实施方式中，所述复合膜的制备工艺包括：基础膜层→涂布UV硬化液→固化→覆膜→翻面→涂布图纹粘结层→固化→复合图纹结构层→固化→收卷。
在另一种实施方式中，所述复合膜的制备工艺包括：基础膜层→涂布UV硬化液→固化→覆膜→翻面→涂布图纹层粘结层→固化→复合图纹结构层→固化→涂布UV实色遮蔽层→固化→收卷。
在一种实施方式中，所述复合膜包括依次层叠的UV硬化层、基础膜层、透明着色层。
在一种实施方式中，所述复合膜包括依次层叠的UV硬化层、基础膜层和实色遮蔽层。
在一种实施方式中，所述复合膜包括依次层叠的UV硬化层、基础膜层、透明着色层和实色遮蔽层。
在一种实施方式中，所述复合膜包括依次层叠的UV硬化层、基础膜层、图纹层粘结层、图纹结构层。
在一种实施方式中，所述复合膜包括依次层叠的UV硬化层、基础膜层、图纹层粘结层、图纹结构层、实色遮蔽层。
本发明与现有技术相比具有以下有益效果：
本发明中复合板材制品中，与胶粘剂层接触的复合膜一面含有羟基反应基团，可实现双重固化，除了UV固化或者烘烤自干外，还可以在后续粘贴基材的过程中，与胶粘剂层之间进行交联固化，大大的提高了与后续基材的结合能力；且附着力、耐水煮性好，无溶剂，符合环保的要求。
附图说明
图1为本发明实施例1复合板材制品的结构示意图；
图2为本发明实施例2复合板材制品的结构示意图；
图3为本发明实施例3复合板材制品的结构示意图；
图4为本发明实施例4复合板材制品的结构示意图；
其中，1-UV硬化层、2-基础膜层、3-透明着色层、4-胶粘剂层、5-基材、6-实色遮蔽层、7-图纹层基础层、8-图纹结构层。
具体实施方式
以下通过具体实施方式说明本发明，但不局限于以下给出的具体实施例。
实施例1
一种复合板材制品，如图1，依次包括层叠的UV硬化层1、基础膜层2、透明着色层3、胶粘剂层4和基材5。
其中，胶粘剂层为PUR热熔胶，透明着色层中含有羟基反应基团。
透明着色层的厚度为10μm；基础膜层的厚度为250μm。
基材为中密度纤维板。
实施例2
一种复合板材制品，如图2，依次包括层叠的UV硬化,1、基础膜层2和实色遮蔽层6、胶粘剂层4和基材5。
其中，胶粘剂层为PUR热熔胶，透明着色层中含有羟基反应基团。
实色遮蔽层的厚度为10μm；基础膜层的厚度为500μm。
基材为预处理的硅酸钙板(硅酸钙板做过渗透底处理)。
实施例3
一种复合板材制品，如图3所示，依次包括层叠的UV硬化层1、基础膜层2、透明着色层3和实色遮蔽层6、胶粘剂层4和基材5。
其中，胶粘剂层为PUR热熔胶，透明着色层中含有羟基反应基团。
透明着色层和实色遮蔽层的厚度均为10μm；基础膜层的厚度为400μm。
基材为PP板材。
实施例4
一种复合板材制品，如图4所示，依次包括层叠的UV硬化层1、基础膜层2、图纹层基础层7、图纹结构层8、实色遮蔽层6、胶粘剂层4和基材5。
其中，胶粘剂层为PUR热熔胶，透明着色层中含有羟基反应基团。
实色遮蔽层的厚度为10μm；基础膜层的厚度为200μm。
图纹层基层为附着底漆，图纹结构层由数码打印处理得到。
基材为多层实木板。
实施例5
一种复合板材制品，同实施例4，不同之处在于，图纹层基层为胶粘剂，图纹结构层由转印处理得到。
对比例1
一种复合板材制品，依次包括层叠的UV硬化层、基础膜层、实色遮蔽层、胶粘剂层和PP板材；其中，胶粘剂层为PUR热熔胶，实色遮蔽层为普通的UV涂层，实色遮蔽层的厚度为30μm；基础膜层的厚度为200μm。通过PUR胶贴合，测试过程中，出现附着力不良，泡水开胶的问题。
对比例2
一种复合板材制品，依次包含UV硬化层、基础膜层、透明着色层、实色遮蔽层、胶粘剂层、基材。其中胶粘剂层为普通的EVA热熔胶，透明着色层和实色涂层均为15μm，基础膜层为250μm，基材为中密度纤维板。通过EVA热熔胶复合后，当环境温度超过40℃时，出现膜层和基材脱胶的问题。
性能评估
通过胶粘剂复合，对复合制品的粘接强度、拉伸强度、断裂伸长率、缩边问题进行测试评估，粘接强度参考标准为《GB/T 2790-1995胶粘剂180度剥离强度试验方法挠性材料对刚性材料》，拉伸粘结参考标准为《GBT 6329-1996胶粘剂对接接头拉伸强度的测定》，缩边问题通过目视的方法进行判定，评估结果如下表所示：
Figure BDA0004009922340000061

Claims (10)

1.一种复合板材制品，其特征在于，包括依次层叠的复合膜、胶粘剂层和基材，其中，与胶粘剂层接触的复合膜一面含有羟基反应基团。
2.一种复合板材制品，其特征在于，所述胶粘剂层中的胶粘剂为聚氨酯胶粘剂。
3.根据权利要求2所述复合板材制品，其特征在于，所述聚氨酯胶粘剂为PUR热熔胶和/或双组份聚氨酯胶粘剂。
4.根据权利要求1-3任一项所述复合板材制品，其特征在于，所述基材选自密度板、木质板、无机板、PVC板、铝板及其他高分子材料板。
5.根据权利要求4所述复合板材制品，其特征在于，所述复合膜为依次层叠的N层复合膜，N≥3。
6.根据权利要求5所述复合板材制品，其特征在于，所述复合膜包括着色层和/或图纹层。
7.根据权利要求6所述复合板材制品，其特征在于，所述着色层包括透明着色层和/或实色遮蔽层。
8.根据权利要求7所述复合板材制品，其特征在于，所述着色层中含有羟基反应基团，与复合板材制品中的胶粘剂层接触。
9.根据权利要求5-8任一项所述复合板材制品，其特征在于，所述复合膜的表层为UV硬化膜层。
10.根据权利要求6所述复合板材制品，其特征在于，所述图纹层包括图纹粘接层和图纹结构层。
CN202211655289.1A 2022-12-21 2022-12-21 一种复合板材制品 Pending CN116061523A (zh)

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