CN114213782A - 一种高耐磨装饰薄膜及其制备方法 - Google Patents
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Abstract
本发明公开了一种高耐磨装饰薄膜及其制备方法,装饰薄膜包括以下重量份的原料:聚氯乙烯树脂粉100‑120份、填充剂5‑10份、柔性石墨5‑8份、防毒剂2‑5份、稳定剂2‑3份、润滑剂3‑5份,本发明克服了现有技术的不足,装饰薄膜的磨损率不超过0.6%,具有优异的耐磨性能,且抗菌性能好,力学性能优异,能够满足地板的使用要求。
Description
技术领域
本发明涉及PVC薄膜技术领域,具体属于一种高耐磨装饰薄膜及其制备方法。
背景技术
PVC地板是指采用聚氯乙烯材料生产的地板,以聚氯乙烯及其共聚树脂为主要原料,加入填料、增塑剂、稳定剂、着色剂等辅料,在片状连续基材上,经涂敷工艺或经压延、挤出或挤压工艺生产而成,PVC地板及其衍生地板已经越来越受到广大消费者的喜爱,使用也越来越广泛,但目前的PVC地板仍会存在些许问题,安装不够简单方便,稳固性不够,且不耐高温,阻燃性差,使用寿命短等缺陷。PVC地板最关键的组成部分就是表层复合的装饰薄膜,其起到表面装饰、耐磨、耐候性、耐腐蚀等作用,对地板的使用寿命有着重要的影响。
发明内容
本发明的目的是提供一种高耐磨装饰薄膜及其制备方法,克服了现有装饰薄膜耐磨性不足的问题。
为解决上述问题,本发明所采取的技术方案如下:
一种高耐磨装饰薄膜,包括以下重量份的原料:聚氯乙烯树脂粉100-120份、填充剂5-10份、柔性石墨5-8份、防毒剂2-5份、稳定剂2-3份、润滑剂3-5份。
其中,所述填充剂为纳米二氧化硅和纳米氧化铝的混合物,所述纳米二氧化硅和纳米氧化铝的质量比为1:1.2-1.5。
其中,所述柔性石墨的制备方法为:将可膨胀石墨置于800-1000℃的环境中加热1-2分钟后,取出,冷却至室温,得到预膨胀石墨,将预膨胀石墨浸入含有氯化锡的水溶液中,然后滴加氢氧化钠溶液至溶液的pH=10-12,然后过滤,烘干,得到沉淀;将沉淀再次置于800-1000℃的环境中加热1-2分钟后,取出,冷却至室温,粉碎,接着浸入含有硅烷偶联剂的乙醇溶液中,捞出后烘干乙醇,得到柔性石墨。
其中,所述防毒剂为吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的混合物,所述吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的质量比为1:1.5-2.0。
制备装饰薄膜的方法,包括以下步骤:将薄膜原料投入密炼机内后,送入双螺杆挤出机,经模头挤出,并拉伸成管状坯料;然后将坯料使用空气吹胀,使管状坯料的厚度降低至0.15-0.2mm,形成薄膜管;将薄膜管冷却、压扁,剖分成上下两片,分别收卷后,得到装饰薄膜。
本发明与现有技术相比较,本发明的实施效果如下:
1、本发明通过使用柔性石墨作为装饰薄膜的填充材料,在石墨本身的润滑能力作用下,使PVC分子之间***的石墨提高了PVC分子之间的流动性,从而使装饰薄膜的断裂伸长率得到了提高,同时由于本发明使用氧化锡和硅烷偶联剂对石墨进行改性,使石墨的强度及与PVC分子链的结合强度得到了提高,从而整体上提高了装饰薄膜的耐磨性能。
2、本发明通过使用氯化锡与氢氧化钠反应,使生成的氢氧化锡夹在预膨胀石墨的石墨片之间,使预膨胀石墨能够充分的吸附硅烷偶联剂,且在二次加热膨胀过程中,氢氧化锡分解产生大量的蒸汽,使预膨胀石墨的体积得到了大幅提高,且形成的氧化锡避免了膨胀后的石墨各层的重新结合,使该柔性石墨有效的提高了装置薄膜的耐磨性能。
3、本发明通过使用吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮作为防毒剂,有效的提高了装饰薄膜抗革兰氏菌的能力;
4、本发明的装饰薄膜具有优异的力学性能和耐磨性能,且抗革兰氏菌性能优异。
具体实施方式
下面将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
将可膨胀石墨置于800℃的环境中加热2分钟后,取出,冷却至室温,得到预膨胀石墨,将预膨胀石墨浸入含有氯化锡的水溶液中,然后滴加氢氧化钠溶液至溶液的pH=10,然后过滤,烘干,得到沉淀;将沉淀再次置于1000℃的环境中加热1分钟后,取出,冷却至室温,粉碎,接着浸入含有硅烷偶联剂的乙醇溶液中,捞出后烘干乙醇,得到柔性石墨。
将聚氯乙烯树脂粉100kg、填充剂5kg、柔性石墨5kg、防毒剂2kg、硬脂酸钙稳定剂2kg、润滑剂硬脂酸3kg搅拌混合均匀,然后投入密炼机中140℃密炼10min,其中,填充剂为纳米二氧化硅和纳米氧化铝的混合物,纳米二氧化硅和纳米氧化铝的质量比为1:1.2;防毒剂为吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的混合物,吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的质量比为1:1.5;密炼完成后,送入双螺杆挤出机,经温度为170℃的模头挤出,并拉伸成管状坯料,然后将坯料在150℃下使用空气吹胀,使管状坯料的厚度降低至0.15mm,形成薄膜管,将薄膜管冷却至70℃,压扁,剖分成上下两片,分别收卷后,得到装饰薄膜。
实施例2
将可膨胀石墨置于1000℃的环境中加热1分钟后,取出,冷却至室温,得到预膨胀石墨,将预膨胀石墨浸入含有氯化锡的水溶液中,然后滴加氢氧化钠溶液至溶液的pH=12,然后过滤,烘干,得到沉淀;将沉淀再次置于800℃的环境中加热2分钟后,取出,冷却至室温,粉碎,接着浸入含有硅烷偶联剂的乙醇溶液中,捞出后烘干乙醇,得到柔性石墨。
将聚氯乙烯树脂粉120kg、填充剂10kg、柔性石墨8kg、防毒剂5kg、硬脂酸钙稳定剂3kg、润滑剂硬脂酸5kg搅拌混合均匀,然后投入密炼机中140℃密炼10-15min,其中,填充剂为纳米二氧化硅和纳米氧化铝的混合物,纳米二氧化硅和纳米氧化铝的质量比为1:1.5;防毒剂为吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的混合物,吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的质量比为1:2.0;密炼完成后,送入双螺杆挤出机,经温度为170℃的模头挤出,并拉伸成管状坯料,然后将坯料在150℃下使用空气吹胀,使管状坯料的厚度降低至0.2mm,形成薄膜管,将薄膜管冷却至70℃,压扁,剖分成上下两片,分别收卷后,得到装饰薄膜。
实施例3
将可膨胀石墨置于800℃的环境中加热2分钟后,取出,冷却至室温,得到预膨胀石墨,将预膨胀石墨浸入含有氯化锡的水溶液中,然后滴加氢氧化钠溶液至溶液的pH=11,然后过滤,烘干,得到沉淀;将沉淀再次置于1000℃的环境中加热2分钟后,取出,冷却至室温,粉碎,接着浸入含有硅烷偶联剂的乙醇溶液中,捞出后烘干乙醇,得到柔性石墨。
将聚氯乙烯树脂粉10kg、填充剂8kg、柔性石墨7kg、防毒剂4kg、硬脂酸钙稳定剂3kg、润滑剂硬脂酸4kg搅拌混合均匀,然后投入密炼机中140℃密炼12min,其中,填充剂为纳米二氧化硅和纳米氧化铝的混合物,纳米二氧化硅和纳米氧化铝的质量比为1:1.4;防毒剂为吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的混合物,吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的质量比为1:1.8;密炼完成后,送入双螺杆挤出机,经温度为170℃的模头挤出,并拉伸成管状坯料,然后将坯料在150℃下使用空气吹胀,使管状坯料的厚度降低至0.15mm,形成薄膜管,将薄膜管冷却至70℃,压扁,剖分成上下两片,分别收卷后,得到装饰薄膜。
对比例1
与实施例3的区别在于,将柔性石墨替换为等质量的可膨胀石墨。
对比例2
与实施例3的区别在于,防毒剂为4,5-二氯-N-辛基-4-异噻唑啉-3-酮。
对比例3
与实施例3的区别在于,填充剂为氧化铝。
将实施例1-3和对比例1-3的装饰薄膜按照GB/T 1768-2006中的方法进行耐磨性测试,使用GB/T 3830-1994中的方法进行力学性能测试,按照GB/T31402-2015测试抗革兰氏菌性能,结果如下表所示:
拉伸强度/Mpa | 断裂伸长率/% | 24h抗菌率/% | 磨损率/% | |
实施例1 | 48 | 193 | 100 | 0.52 |
实施例2 | 46 | 196 | 100 | 0.57 |
实施例3 | 49 | 198 | 100 | 0.54 |
对比例1 | 37 | 164 | 100 | 1.43 |
对比例2 | 48 | 201 | 86.4 | 0.49 |
对比例3 | 41 | 181 | 100 | 0.87 |
由上表的数据可以明显看出,本发明的装饰薄膜的磨损率不超过0.6%,具有优异的耐磨性能,且抗菌性能好,力学性能优异,能够满足地板的使用要求。
尽管已经示出和描述了本发明的实施例,对于本领域的普通技术人员而言,可以理解在不脱离本发明的原理和精神的情况下可以对这些实施例进行多种变化、修改、替换和变型,本发明的范围由所附权利要求及其等同物限定。
Claims (5)
1.一种高耐磨装饰薄膜,其特征在于,包括以下重量份的原料:聚氯乙烯树脂粉100-120份、填充剂5-10份、柔性石墨5-8份、防毒剂2-5份、稳定剂2-3份、润滑剂3-5份。
2.根据权利要求1所述的一种高耐磨装饰薄膜,其特征在于,所述填充剂为纳米二氧化硅和纳米氧化铝的混合物,所述纳米二氧化硅和纳米氧化铝的质量比为1:1.2-1.5。
3.根据权利要求1所述的一种高耐磨装饰薄膜,其特征在于,所述柔性石墨的制备方法为:将可膨胀石墨置于800-1000℃的环境中加热1-2分钟后,取出,冷却至室温,得到预膨胀石墨,将预膨胀石墨浸入含有氯化锡的水溶液中,然后滴加氢氧化钠溶液至溶液的pH=10-12,然后过滤,烘干,得到沉淀;将沉淀再次置于800-1000℃的环境中加热1-2分钟后,取出,冷却至室温,粉碎,接着浸入含有硅烷偶联剂的乙醇溶液中,捞出后烘干乙醇,得到柔性石墨。
4.根据权利要求1所述的一种高耐磨装饰薄膜,其特征在于,所述防毒剂为吡啶硫铜锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的混合物,所述吡啶硫酮锌和4,5-二氯-N-辛基-4-异噻唑啉-3-酮的质量比为1:1.5-2.0。
5.制备权利要求1-4任意一项所述的装饰薄膜的方法,其特征在于,包括以下步骤:将薄膜原料投入密炼机内后,送入双螺杆挤出机,经模头挤出,并拉伸成管状坯料;然后将坯料使用空气吹胀,使管状坯料的厚度降低至0.15-0.2mm,形成薄膜管;将薄膜管冷却、压扁,剖分成上下两片,分别收卷后,得到装饰薄膜。
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