CN116198159A - 一种多层共挤高效抗菌生物地板的制造方法 - Google Patents
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Abstract
本发明公开了一种多层共挤高效抗菌生物地板的制造方法,属于地板生产领域,通过芯材制备、抗菌剂制备及壳材制备、耐磨层制备,然后采用多层共挤出技术得到板材,该方法通过相对较为常见廉价的材料制成了复合型抗菌剂,然后将其应用于地板的制备,增加了地板本身的抗菌效果,大大增强了地板壳层的抗菌效果,并且保留了复合材料的力学性能,提高了地板的使用寿命。
Description
技术领域
本发明属于地板领域,具体涉及一种多层共挤高效抗菌生物地板的制造方法。
背景技术
目前,随着社会的发展人们生活条件越来越好,对于家具或公共场所的环境质量追求也相应的不断提高。实木地板因其良好的质感和外观而广受人们欢迎,但仍存在价格昂贵的缺点,应用并不广泛。而PVC塑料地板广泛用于公共建筑和工业建筑中。在国内的大中城市已经得到普遍的认可。同时随着人们观念的增强,人们对于PVC地板的要求也越来越高,希望PVC地板的性能得到进一步的改进。
随着抗菌剂材料的流行,在地板中加入抗菌材料来增强地板的抗菌效果也是日益盛行,之前均是单一抗菌剂,但是其使用存在何种问题,抗菌效果单一,不稳定,将其应用于地板行业首先在使用寿命上存在问题,其次,其本身也会带有一定的毒性,对人和环境有一定损害。
发明内容
针对上述存在的情况,本发明提供了一种多层共挤高效抗菌生物地板的制造方法,具体制备方法如下:
一种多层共挤高效抗菌生物地板的制造方法,具体步骤如下:
步骤一:芯材的制备,采用生物质纤维、PVC改性树脂以及其他助剂制备而成的生物质复合材料作为芯材,助剂即为常规芯材制备用到的助剂;
步骤二:制备复合型抗菌剂,称取壳聚糖,与浓度2%的乙酸水溶液混合均匀,壳聚糖完全溶解后,加入50mmol/L的Cu(NO3)2溶液和去离子水,继续搅拌使得Cu2+与活性氨基充分反应,随后加入还原剂硼氢化钠和硅烷改性后钛白粉,超声分散,然后再60℃恒温搅拌,自然冷却至室温,干燥研磨后获得壳聚糖/铜离子/二氧化钛复合型抗菌剂;
步骤三:壳材的制备,采用步骤二中的壳聚糖/铜离子/二氧化钛复合型抗菌剂与PVC改性树脂共同构成;
步骤四:耐磨层的制备,耐磨层的主体采用PVC树脂成为膜物质,然后在其表面引入纳米三氧化二铝和氧化锆无机材料制成绿色钢膜;
步骤五:将步骤一和步骤三选用的芯材和壳材使用后共挤技术制备出多层共挤出板材;
步骤六:将步骤四的绿色钢膜与步骤五中的板材通过压贴、裁剪开槽步骤制出新型多层共挤高效抗菌生物质地板成品。
作为进一步的改进,其特征在于:所述步骤一中PVC改性树脂的制备方法为:选择含有柔性酯基的长链结构硬脂酸甲酯,利用丙二胺作为活性桥联官能团,制备了端胺基的硬脂酸甲酯(AMS)作为增塑改性剂,然后再利用AMS的端胺基(-NH2)对PVC的氯进行亲核取代,制备了长链脂肪酸酯接枝的改性PVC改性树脂。
作为进一步的改进,其特征在于:所述芯材使用的生物质纤维为杨木、桉木、柳木、泡桐、桦木、辐射松、火炬松、长叶松、花旗松、南美杉、玉米秸秆、芦苇秸秆、稻壳、水稻秸秆中任意一种或多种。
作为进一步的改进,其特征在于:所述芯材使用的生物质纤维含水率为1%-3%,粉末大小保持在30-90目。
作为进一步的改进,其特征在于:所述步骤三中抗菌剂占壳材质量的0.2-4%。
作为进一步的改进,其特征在于:抗菌剂占壳材总质量的0.5%。
作为进一步的改进,其特征在于:所述步骤五中的后共挤技术的具体步骤为:在模具模头中设计芯层冷却流道,在共挤板之前增加两块冷却板,在模芯内增加冷却水流道,在共挤包覆之前对芯材进行初步冷却定型,再通多壳层共挤流道对芯层材进行包覆,最后再定型模和水箱内完成冷却定型。
用该后共挤技术,通过对地板加工模具进行设计,在芯层设计冷却流道,在共挤出时就可以对芯层的生物质复合材料进行初步冷却,然后再通过壳层共挤流道对芯层材料进行包覆,最后再定型。
通过该多层共挤高效抗菌生物地板的制造方法,将生物质材料进行综合利用加成制成地板,并且在该方法中壳材的制备中加入了PVC改性树脂,这样增加了地板的耐磨性。为了增加地板的耐磨性,引入纳米三氧化二铝和氧化锆无机材料混合于PVC树脂中,可以增加其耐磨性,也可以增加壳材制备中各个物质的分散性能。
该方法通过相对较为常见廉价的材料制成了复合型抗菌剂,然后将其应用于地板的制备,增加了地板本身的抗菌效果,大大增强了地板壳层的抗菌效果,提高了地板的使用寿命。
具体实施方式
为了加深对本发明的理解,下面将结合实施例对本发明做进一步详细描述,该实施例仅用于解释本发明,并不对保护范围构成限定。
一种多层共挤高效抗菌生物地板的制造方法,具体步骤如下:
步骤一:芯材的制备,采用生物质纤维、PVC改性树脂以及其他助剂制备而成的生物质复合材料作为芯材; PVC改性树脂的制备方法为:选择含有柔性酯基的长链结构硬脂酸甲酯,利用丙二胺作为活性桥联官能团,制备了端胺基的硬脂酸甲酯(AMS)作为增塑改性剂,然后再利用AMS的端胺基(-NH2)对PVC的氯进行亲核取代,制备了长链脂肪酸酯接枝的改性PVC改性树脂;生物质纤维为杨木、桉木、柳木、泡桐、桦木、辐射松、火炬松、长叶松、花旗松、南美杉、玉米秸秆、芦苇秸秆、稻壳、水稻秸秆中任意一种或多种,随意选取,所述芯材使用的生物质纤维含水率为1%-3%,粉末大小保持在30-90目,这样芯材的主体材料来源可以很广泛,制备成本得到了较大的降低;
步骤二:制备复合型抗菌剂,称取2g壳聚糖,与50ml浓度2%的乙酸水溶液混合均匀,壳聚糖完全溶解后,加入20mL50mmol/L的Cu(NO3)2溶液和去离子水,继续搅拌使得Cu2+与活性氨基充分反应,随后加入还原剂硼氢化钠和硅烷改性后钛白粉,超声分散,然后再60℃恒温搅拌,自然冷却至室温,干燥研磨后获得壳聚糖/铜离子/二氧化钛复合型抗菌剂;
步骤三:壳材的制备,采用步骤二中的壳聚糖/铜离子/二氧化钛复合型抗菌剂与PVC改性树脂共同构成;抗菌剂占壳材质量的0.2-4%,优选为0.5%;
步骤四:耐磨层的制备,耐磨层的主体采用PVC树脂成为膜物质,然后在其表面引入纳米三氧化二铝和氧化锆无机材料制成绿色钢膜;将该层进行耐磨性测试,根据GB/T18102-2020检测,耐磨性大于6000转,达到家用1级标准;
步骤五:将步骤一和步骤三选用的芯材和壳材使用后共挤技术制备出多层共挤出板材;后共挤技术的具体步骤为:在模具模头中设计芯层冷却流道,在共挤板之前增加两块冷却板,在模芯内增加冷却水流道,在共挤包覆之前对芯材进行初步冷却定型,再通多壳层共挤流道对芯层材进行包覆,最后再定型模和水箱内完成冷却定型;
步骤六:将步骤四的绿色钢膜与步骤五中的板材通过压贴、裁剪开槽步骤制出新型多层共挤高效抗菌生物质地板成品。
该共挤出技术中,可以子啊提高抑菌效果的同事保留住生物质复合材料的力学性能,总而提高地板的性能。
Claims (7)
1.一种多层共挤高效抗菌生物地板的制造方法,具体步骤如下:
步骤一:芯材的制备,采用生物质纤维、PVC改性树脂以及其他助剂制备而成的生物质复合材料作为芯材;
步骤二:制备复合型抗菌剂,称取壳聚糖,与浓度2%的乙酸水溶液混合均匀,壳聚糖完全溶解后,加入50mmol/L的Cu(NO3)2溶液和去离子水,继续搅拌使得Cu2+与活性氨基充分反应,随后加入还原剂硼氢化钠和硅烷改性后钛白粉,超声分散,然后再60℃恒温搅拌,自然冷却至室温,干燥研磨后获得壳聚糖/铜离子/二氧化钛复合型抗菌剂;
步骤三:壳材的制备,采用步骤二中的壳聚糖/铜离子/二氧化钛复合型抗菌剂与PVC改性树脂共同构成;
步骤四:耐磨层的制备,耐磨层的主体采用PVC树脂成为膜物质,然后在其表面引入纳米三氧化二铝和氧化锆无机材料制成绿色钢膜;
步骤五:将步骤一和步骤三选用的芯材和壳材使用后共挤技术制备出多层共挤出板材;
步骤六:将步骤四的绿色钢膜与步骤五中的板材通过压贴、裁剪开槽步骤制出新型多层共挤高效抗菌生物质地板成品。
2.根据权利要求1所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:所述步骤一中PVC改性树脂的制备方法为:选择含有柔性酯基的长链结构硬脂酸甲酯,利用丙二胺作为活性桥联官能团,制备了端胺基的硬脂酸甲酯(AMS)作为增塑改性剂,然后再利用AMS的端胺基(-NH2)对PVC的氯进行亲核取代,制备了长链脂肪酸酯接枝的改性PVC改性树脂。
3.根据权利要求1所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:所述芯材使用的生物质纤维为杨木、桉木、柳木、泡桐、桦木、辐射松、火炬松、长叶松、花旗松、南美杉、玉米秸秆、芦苇秸秆、稻壳、水稻秸秆中任意一种或多种。
4.根据权利要求1所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:所述芯材使用的生物质纤维含水率为1%-3%,粉末大小保持在30-90目。
5.根据权利要求1所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:所述步骤三中抗菌剂占壳材质量的0.2-4%。
6.根据权利要求5所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:抗菌剂占壳材总质量的0.5%。
7.根据权利要求1所述的一种多层共挤高效抗菌生物地板的制造方法,其特征在于:所述步骤五中的后共挤技术的具体步骤为:在模具模头中设计芯层冷却流道,在共挤板之前增加两块冷却板,在模芯内增加冷却水流道,在共挤包覆之前对芯材进行初步冷却定型,再通多壳层共挤流道对芯层材进行包覆,最后再定型模和水箱内完成冷却定型。
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