CN106751166A - 一种纳米纤维素增韧的高耐热pvc‑nbr复合发泡板及其制备方法 - Google Patents

一种纳米纤维素增韧的高耐热pvc‑nbr复合发泡板及其制备方法 Download PDF

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CN106751166A
CN106751166A CN201611108325.7A CN201611108325A CN106751166A CN 106751166 A CN106751166 A CN 106751166A CN 201611108325 A CN201611108325 A CN 201611108325A CN 106751166 A CN106751166 A CN 106751166A
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王新志
张凯
郑海迪
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Anhui Sheng Yuan Rubber And Plastic Science And Technology Ltd
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Abstract

本发明公开了一种纳米纤维素增韧的高耐热PVC‑NBR复合发泡板，该复合发泡板以PVC与NBR共混材料作为复合板材基料，并加入了高耐热的聚酰亚胺多孔微球，极大地提高了复合板的耐热能力，加入的纳米纤维素经硅烷偶联剂改性后与树脂的相容性更佳，增强增韧效果显著，并提高了板材的生物降解能力，更为绿色环保，最终制备的复合发泡板耐热、阻燃、强韧、环保，在多个领域具有良好的应用价值，尤其在家装材料方面有突出的优势。

Description

一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板及其制备 方法
技术领域
本发明涉及PVC发泡板技术领域，尤其涉及一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板及其制备方法。
背景技术
PVC发泡板具有防水、阻燃、耐酸碱、防蛀、质轻、保温、隔音、减震等特性，是木材、铝材、复合板材的理想替代品，广泛的应用于客车、火车车厢顶棚、箱体芯层、内部装潢用板、建筑物外墙板、内装饰用板、办公室、住宅、公共场所建筑物隔间，商用装饰架、无尘室用板、吊顶板等方面。
尽管PVC发泡板具有如此广泛的应用空间，然而其实际市场占有率却偏低，尤其在家装材料方面，主要的制约因素是产品良莠不齐，产品在强度、刚性、热稳定性等方面不尽如人意，使用时存在安全隐患，为了提高PVC板材的综合性能，使用高分子材料和无机填料共混改性是最常用的方法。《阻燃型NBR/PVC发泡材料的研究》一文将NBR与PVC共混发泡，获得了力学性能较为优良的产品，但是其耐热性差，需添加阻燃剂达到阻燃效果，但是对材料的力学性能影响较大，使用受到限制。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板及其制备方法。
本发明是通过以下技术方案实现的：
一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板，该复合发泡板由以下重量份的原料制得：PVC 40-50、纳米纤维素4-5、NBR 20-30、AC发泡剂2-5、环氧大豆油2-3、硼酸三乙酯1-2、聚酰亚胺多孔微球5-10、光稳定剂0.5-1、钙锌稳定剂4-5、白炭黑4-5、硅烷偶联剂kh560 0.5-1、促进剂TMTD 0.4-0.5、硬脂酸0.5-1、硫化剂PDM 0.8-1.2、环氧脂肪酸甲酯5-8、甲基丙烯酸锌2-4、80-90%的乙醇水溶液15-25。
所述的一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板的制备方法包括以下步骤：
（1）先将硅烷偶联剂kh560投入乙醇水溶液中，搅拌反应2-3h后加入纳米纤维素，继续搅拌混合1-2h抽滤，产物水洗2-3次后干燥备用；
（2）先将NBR投入160℃密炼机中密炼20-30min，随后加入PVC、聚酰亚胺多孔微球、光稳定剂、钙锌稳定剂、甲基丙烯酸锌以及步骤（1）所得物料，继续密炼40-50min后得复合基料，基料自然冷却至室温备用；
（3）将步骤（2）制备的基料与其它剩余成分投入炼胶机中，在50℃条件下混炼10-15min后薄通三次后出料；
（4）将步骤（3）所得片材在模具中，在175-180℃、10-12MPa条件下热压发泡6-8min，随后卸压冷却，即得所述复合发泡板。
本发明以PVC与NBR共混材料作为复合板材基料，并加入了高耐热的聚酰亚胺多孔微球，极大地提高了复合板的耐热能力，加入的纳米纤维素经硅烷偶联剂改性后与树脂的相容性更佳，增强增韧效果显著，并提高了板材的生物降解能力，更为绿色环保，最终制备的复合发泡板耐热、阻燃、强韧、环保，在多个领域具有良好的应用价值，尤其在家装材料方面有突出的优势。
具体实施方式
一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板，该复合发泡板由以下重量份的原料制得：PVC 40、纳米纤维素4、NBR 20、AC发泡剂2、环氧大豆油2、硼酸三乙酯1、聚酰亚胺多孔微球5、光稳定剂0.5、钙锌稳定剂4、白炭黑4、硅烷偶联剂kh560 0.5、促进剂TMTD0.4、硬脂酸0.5、硫化剂PDM 0.8、环氧脂肪酸甲酯5、甲基丙烯酸锌2、80%的乙醇水溶液15。
该实施例复合发泡板的制备方法包括以下步骤：
（1）先将硅烷偶联剂kh560投入乙醇水溶液中，搅拌反应2h后加入纳米纤维素，继续搅拌混合1h抽滤，产物水洗2次后干燥备用；
（2）先将NBR投入160℃密炼机中密炼20min，随后加入PVC、聚酰亚胺多孔微球、光稳定剂、钙锌稳定剂、甲基丙烯酸锌以及步骤（1）所得物料，继续密炼40min后得复合基料，基料自然冷却至室温备用；
（3）将步骤（2）制备的基料与其它剩余成分投入炼胶机中，在50℃条件下混炼10min后薄通三次后出料；
（4）将步骤（3）所得片材在模具中，在175℃、10MPa条件下热压发泡6min，随后卸压冷却，即得所述复合发泡板。
制得的发泡板遵循相关标准进行性能测试，性能测试结果为：
表观密度：0.362g/cm3；拉伸强度：32.6MPa；断裂伸长率：218.6%；撕裂强度：4.3N/m；氧指数≥28%；耐热性：80℃条件下放置5h无变化。

Claims (2)

1. 一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板，其特征在于，该复合发泡板由以下重量份的原料制得：PVC 40-50、纳米纤维素4-5、NBR 20-30、AC发泡剂2-5、环氧大豆油2-3、硼酸三乙酯1-2、聚酰亚胺多孔微球5-10、光稳定剂0.5-1、钙锌稳定剂4-5、白炭黑4-5、硅烷偶联剂kh560 0.5-1、促进剂TMTD 0.4-0.5、硬脂酸0.5-1、硫化剂PDM 0.8-1.2、环氧脂肪酸甲酯5-8、甲基丙烯酸锌2-4、80-90%的乙醇水溶液15-25。
2.如权利要求1所述的一种纳米纤维素增韧的高耐热PVC-NBR复合发泡板的制备方法，其特征在于，所述的制备方法包括以下步骤：
（1）先将硅烷偶联剂kh560投入乙醇水溶液中，搅拌反应2-3h后加入纳米纤维素，继续搅拌混合1-2h抽滤，产物水洗2-3次后干燥备用；
（2）先将NBR投入160℃密炼机中密炼20-30min，随后加入PVC、聚酰亚胺多孔微球、光稳定剂、钙锌稳定剂、甲基丙烯酸锌以及步骤（1）所得物料，继续密炼40-50min后得复合基料，基料自然冷却至室温备用；
（3）将步骤（2）制备的基料与其它剩余成分投入炼胶机中，在50℃条件下混炼10-15min后薄通三次后出料；
（4）将步骤（3）所得片材在模具中，在175-180℃、10-12MPa条件下热压发泡6-8min，随后卸压冷却，即得所述复合发泡板。
CN201611108325.7A 2016-12-06 2016-12-06 一种纳米纤维素增韧的高耐热pvc‑nbr复合发泡板及其制备方法 Pending CN106751166A (zh)

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CN110028683A (zh) * 2019-04-30 2019-07-19 重庆大学 一种改性纤维素纳米纤维分散液及其制备方法
CN110511575A (zh) * 2019-07-26 2019-11-29 广西大学 一种环保抗菌型纳米纤维素复合大豆油基聚合物泡沫的制备方法

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Application publication date: 20170531