CN107286500A - 一种磺化再生胶粉改性pvc共混建筑膜材料及其制备方法 - Google Patents

一种磺化再生胶粉改性pvc共混建筑膜材料及其制备方法 Download PDF

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CN107286500A
CN107286500A CN201710419202.3A CN201710419202A CN107286500A CN 107286500 A CN107286500 A CN 107286500A CN 201710419202 A CN201710419202 A CN 201710419202A CN 107286500 A CN107286500 A CN 107286500A
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sulfonation
parts
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ground rubber
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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

本发明公开了一种磺化再生胶粉改性PVC共混建筑膜材料及其制备方法，这种建筑膜材料是以磺化再生胶粉/PVC共混膜作为基体，这种共混膜中加入经磺化处理后的再生胶粉可提升PVC膜的亲水性，共混膜层表面活性更高，与涂层材料的结合性更高，还可以提高PVC膜的稳定性和力学性能，在降低生产成本的同时有效的改善了PVC基膜的性能，表面涂覆的含硅溶胶、纳米二氧化钛、细菌纤维素等原料的苯丙乳液有优异的耐光、耐污以及一定的亲水、透湿性，从而使得制备的PVC建筑膜材料具有优异的耐光、耐污、耐老化以及高强柔韧性，使用寿命更长。

Description

一种磺化再生胶粉改性PVC共混建筑膜材料及其制备方法
技术领域
本发明涉及PVC建筑膜材料技术领域，尤其涉及一种磺化再生胶粉改性PVC共混建筑膜材料及其制备方法。
背景技术
我国是轮胎生产和汽车大国，随着家庭汽车拥有量的快速上涨，每年产生了大量的废旧轮胎，如何有效的回收利用这些废旧轮胎，防止环境污染，具有十分重要的现实意义和巨大的经济价值。目前较为常见的废旧轮胎回收方法主要有原型直接利用、焚烧生热、旧轮胎翻新、生产再生橡胶、生产硫化橡胶粉等几种。其中生产橡胶粉是最为常见的处理方法，生产的橡胶粉主要用于沥青改性、道路铺设、运动场所铺设橡胶制品等领域，有待于进一步扩大使用范围。
PVC建筑膜价格低廉，色彩多样，易于加工运输，在膜结构建筑中被广泛应用，但是PVC膜耐光性、耐污性较差，极大的影响其使用性和美观性。《浙江理工大学学报（自然科学版）》2017年第31卷第4期上刊出的“PVC建筑膜材的表面处理及其亲水性能研究”一文将PVC薄膜表面经低温等离子改性处理后再涂覆SiO2、TiO2，制成PVC/ SiO2/ TiO2复合膜，提高其亲水性以及抗紫外和抗污能力，但是这种方法生产成本较高，不适合大规模的生产。
发明内容
本发明为了弥补已有技术的缺陷，提供一种磺化再生胶粉改性PVC共混建筑膜材料及其制备方法。
本发明是通过以下技术方案实现的：
一种磺化再生胶粉改性PVC共混建筑膜材料，包括磺化再生胶粉改性PVC共混膜和涂覆于膜两面的涂层材料。
所述的磺化再生胶粉改性PVC共混膜是由100份PVC、30-50份增塑剂、10-20份磺化再生胶粉、1-5份马来酸酐接枝三元乙丙橡胶、1-2份钙锌复合稳定剂、10-20份DOP经搅拌、熔炼、压延制成。
所述的磺化再生胶粉是由以下方法制备得到的：
（1）将50-100目废橡胶粉与脱硫再生剂按照10:1-2的重量比混合后投入脱硫罐中，通入高温蒸汽，使罐内压力保持为0.5-1MPa，加热至120-130℃，以500-800转/min的速度预混5-10min后升温至180-200℃，升压至3-3.5MPa，以100-200转/min的速度搅拌反应30-50min后卸压出料，得脱硫再生胶粉；
（2）将脱硫再生胶粉、磺化剂、石油醚按照1:0.1:10的重量比混合均匀，在室温下反应50-60min后加入5%乙醇溶液终止反应，过滤，所得物料投入乙酸锌/乙醇/水混合溶液中和反应1-2h，然后经干燥处理后即得所述的磺化再生胶粉，其中磺化剂为等摩尔的硫酸和乙酸酐组成。
所述的脱硫再生剂是由12-15份糠醛抽出油、1-2份苯甲醛、0.05-0.1份活化剂480、氯化铁1-2份、0.1-0.5份超细稀土尾矿渣粉、3-5份亚油酸复配混合而成。
所述的涂层材料是由50-60份水性苯丙乳液、5-10份固含量为30%的硅溶胶、0.1-0.5份纳米二氧化钛、10-15份细菌纤维素乳液、0.1-0.5份丁烷四羧酸经高速搅拌混合均匀后脱泡，即得。
所述的细菌纤维素乳液的制备方法为：将细菌纤维素膜置于浓度为15-30%的氢氧化钠水溶液中，加热煮沸30-50min，用去离子水洗涤至中性后真空干燥，所得物料研磨成粉状，置于乳化机内乳化，即得。
所述的一种磺化再生胶粉改性PVC共混建筑膜材料的制备方法，具体步骤如下：先将磺化再生胶粉改性PVC共混膜浸入等体积的乙醇和水复配的溶液中超声清洗5-10min后将涂层材料涂布于膜两面，室温固化12-24h，即得所述的建筑膜材料。
本发明制备的建筑膜材料是以磺化再生胶粉/PVC共混膜作为基体，这种共混膜中加入经磺化处理后的再生胶粉可提升PVC膜的亲水性，共混膜层表面活性更高，与涂层材料的结合性更高，还可以提高PVC膜的稳定性和力学性能，在降低生产成本的同时有效的改善了PVC基膜的性能，表面涂覆的含硅溶胶、纳米二氧化钛、细菌纤维素等原料的苯丙乳液有优异的耐光、耐污以及一定的亲水、透湿性，从而使得制备的PVC建筑膜材料具有优异的耐光、耐污、耐老化以及高强柔韧性，使用寿命更长。
具体实施方式
一种磺化再生胶粉改性PVC共混建筑膜材料，包括磺化再生胶粉改性PVC共混膜和涂覆于膜两面的涂层材料。
其中磺化再生胶粉改性PVC共混膜是由100份PVC、30份增塑剂、10份磺化再生胶粉、1份马来酸酐接枝三元乙丙橡胶、1份钙锌复合稳定剂、10份DOP经搅拌、熔炼、压延制成。
所述的磺化再生胶粉是由以下方法制备得到的：
（1）将50目废橡胶粉与脱硫再生剂按照10:1的重量比混合后投入脱硫罐中，通入高温蒸汽，使罐内压力保持为0.5MPa，加热至120℃，以500转/min的速度预混5min后升温至180℃，升压至3MPa，以100转/min的速度搅拌反应30min后卸压出料，得脱硫再生胶粉；
（2）将脱硫再生胶粉、磺化剂、石油醚按照1:0.1:10的重量比混合均匀，在室温下反应50min后加入5%乙醇溶液终止反应，过滤，所得物料投入乙酸锌/乙醇/水混合溶液中和反应1h，然后经干燥处理后即得所述的磺化再生胶粉，其中磺化剂为等摩尔的硫酸和乙酸酐组成。
所述的脱硫再生剂是由12份糠醛抽出油、1份苯甲醛、0.05份活化剂480、氯化铁1份、0.1份超细稀土尾矿渣粉、3份亚油酸复配混合而成。
所述的涂层材料是由50份水性苯丙乳液、5份固含量为30%的硅溶胶、0.1份纳米二氧化钛、10份细菌纤维素乳液、0.1份丁烷四羧酸经高速搅拌混合均匀后脱泡，即得。
所述的细菌纤维素乳液的制备方法为：将细菌纤维素膜置于浓度为15%的氢氧化钠水溶液中，加热煮沸30min，用去离子水洗涤至中性后真空干燥，所得物料研磨成粉状，置于乳化机内乳化，即得。
所述的一种磺化再生胶粉改性PVC共混建筑膜材料的制备方法，具体步骤如下：先将磺化再生胶粉改性PVC共混膜浸入等体积的乙醇和水复配的溶液中超声清洗5min后将涂层材料涂布于膜两面，室温固化12h，即得所述的建筑膜材料。

Claims (7)

1.一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，包括磺化再生胶粉改性PVC共混膜和涂覆于膜两面的涂层材料。
2.如权利要求1所述的一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，所述的磺化再生胶粉改性PVC共混膜是由100份PVC、30-50份增塑剂、10-20份磺化再生胶粉、1-5份马来酸酐接枝三元乙丙橡胶、1-2份钙锌复合稳定剂、10-20份DOP经搅拌、熔炼、压延制成。
3.如权利要求2所述的一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，所述的磺化再生胶粉是由以下方法制备得到的：
（1）将50-100目废橡胶粉与脱硫再生剂按照10:1-2的重量比混合后投入脱硫罐中，通入高温蒸汽，使罐内压力保持为0.5-1MPa，加热至120-130℃，以500-800转/min的速度预混5-10min后升温至180-200℃，升压至3-3.5MPa，以100-200转/min的速度搅拌反应30-50min后卸压出料，得脱硫再生胶粉；
（2）将脱硫再生胶粉、磺化剂、石油醚按照1:0.1:10的重量比混合均匀，在室温下反应50-60min后加入5%乙醇溶液终止反应，过滤，所得物料投入乙酸锌/乙醇/水混合溶液中和反应1-2h，然后经干燥处理后即得所述的磺化再生胶粉，其中磺化剂为等摩尔的硫酸和乙酸酐组成。
4.如权利要求3所述的一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，所述的脱硫再生剂是由12-15份糠醛抽出油、1-2份苯甲醛、0.05-0.1份活化剂480、氯化铁1-2份、0.1-0.5份超细稀土尾矿渣粉、3-5份亚油酸复配混合而成。
5.如权利要求1所述的一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，所述的涂层材料是由50-60份水性苯丙乳液、5-10份固含量为30%的硅溶胶、0.1-0.5份纳米二氧化钛、10-15份细菌纤维素乳液、0.1-0.5份丁烷四羧酸经高速搅拌混合均匀后脱泡，即得。
6.如权利要求4所述的一种磺化再生胶粉改性PVC共混建筑膜材料，其特征在于，所述的细菌纤维素乳液的制备方法为：将细菌纤维素膜置于浓度为15-30%的氢氧化钠水溶液中，加热煮沸30-50min，用去离子水洗涤至中性后真空干燥，所得物料研磨成粉状，置于乳化机内乳化，即得。
7.如权利要求1所述的一种磺化再生胶粉改性PVC共混建筑膜材料的制备方法，其特征在于，具体步骤如下：先将磺化再生胶粉改性PVC共混膜浸入等体积的乙醇和水复配的溶液中超声清洗5-10min后将涂层材料涂布于膜两面，室温固化12-24h，即得所述的建筑膜材料。
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