CN106758497A - 一种添加改性粉煤灰纤维的环保可降解防水纸 - Google Patents

一种添加改性粉煤灰纤维的环保可降解防水纸 Download PDF

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CN106758497A
CN106758497A CN201611251827.5A CN201611251827A CN106758497A CN 106758497 A CN106758497 A CN 106758497A CN 201611251827 A CN201611251827 A CN 201611251827A CN 106758497 A CN106758497 A CN 106758497A
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李宗飞
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Abstract

本发明公开了一种添加改性粉煤灰纤维的环保可降解防水纸，利用玉米淀粉降解后与苯乙烯、丙烯酸丁酯接枝共聚，生成具有较长碳链的高分子化合物，然后将其吸附到粉煤灰纤维表面，增强了粉煤灰纤维的强度，添加到纸张制造的过程中，提高了纸张的防腐性、耐热性，使得纸张的吸湿形变降低，提高了纸张的综合性能；本发明制成的产品，配方科学合理，原料易得，工艺便于工业控制，质量安全可完全降解，对环境无害，可以用作工业产品的外包装，也可用于需要接触有水环境的包装用纸。

Description

一种添加改性粉煤灰纤维的环保可降解防水纸
技术领域
本发明涉及造纸技术领域，尤其涉及一种添加改性粉煤灰纤维的环保可降解防水纸。
背景技术
纸张纤维具有很强的亲水性，一般情况下未经过处理的纸页经水浸泡后，大部分纤维强度会失去，甚至直接破碎。为了满足人们生活需求和现代工业技术的发展需要，纸的应用领域越来越大。防水纸在产品包装、食品包装等领域应用广泛，随着环保意识的日益增强，人们对于环保型可降解的防水纸需求越来越强烈。
《高效能低成本湿强剂的合成及其在防水原纸中的应用》一文中研究了高效能低成本聚酰胺聚胺环氧氯丙烷湿强剂PAE树脂的合成工艺及其在防水原纸中的使用情况及成纸质量，该树脂对纸张的增湿强效果明显，是一种优良的湿强剂，用其制成的防水纸具有良好的湿强度，从而使得防水纸的质量得以提高，防水性能增强。文章中防水原纸主要是由纤维素制备而来的，即使掺加湿强剂、施胶剂等特定的添加剂，其本身的可生物降解性依然很突出，在特定条件下，经过一定时间，防水纸仍然可以完全降解，但是其防水效果具有一定的局限性，目前市场上有 PP 防水纸，采用某种特殊工艺使PP包覆在纸张表面，使纸张具有良好的防水性能，由于PP为石化产品，其稳定性较高，很难生物降解，对环境造成了危害。这就需要我们在增强纸张施强效果的同时在成型纸张表面涂覆一层防水效果好且具有可生物降解功效的防水膜，提高防水纸的性能，同时在纸张成型前加入不同功能型成分，使可生物降解防水纸具有其他的附加价值，提高市场竞争力。
发明内容
本发明目的就是为了弥补已有技术的缺陷，提供一种添加改性粉煤灰纤维的环保可降解防水纸。
本发明是通过以下技术方案实现的：
一种添加改性粉煤灰纤维的环保可降解防水纸，由下列重量份的原料制备制成：烷基烯酮二聚体0.2-0.25、PAE树脂1.5-1.6、聚合氯化铝1.5-1.6、阔叶木浆60-62、漂白桑皮浆38-40、蒸馏水适量、二氧化硅4-5、玉米淀粉2-3、苯乙烯0.8-1、丙烯酸丁酯0.8-0.9、亚硫酸氢钠0.1-0.12、浓度为30wt%的双氧水1.6-2、羧甲基纤维素0.5-0.6、粉煤灰纤维9-10、魔芋葡甘聚糖1.8-1.9、浓缩乳清蛋白4.2-4.5、蜂蜡4-4.5、甘油0.1-0.12、吐温800.08-0.1。
所述一种添加改性粉煤灰纤维的环保可降解防水纸，由以下具体步骤制成：
（1）将阔叶木浆、漂白桑皮浆混合，加入打浆机中，然后加入PAE树脂、聚合氯化铝、烷基烯酮二聚体以及适量蒸馏水进行打浆，控制纸浆浓度为3.9-4.2%，打浆度在38-400SR，制得浆料；
（2）将玉米淀粉、亚硫酸氢钠、羧甲基纤维素混合，加入总量3-4倍量的蒸馏水，边搅拌边加热至60-70℃，然后加入一半量的浓度为30wt%的双氧水，恒温搅拌30-40分钟后升温至90-95℃，继续搅拌50-60分钟使玉米淀粉完全糊化，降温至75-80℃，加入苯乙烯、丙烯酸丁酯以及剩余的浓度为30wt%的双氧水，恒温搅拌90-120分钟后得到乳液待用；将上述乳液中加入1.5-2倍量的蒸馏水，搅拌分散均匀后加入粉煤灰纤维，以600-800转/分的速度搅拌分散30-40分钟后静置，抽滤，将得到的滤饼放入烘箱中以70-80℃干燥2-3小时，得到增强改性粉煤灰纤维；
（3）将魔芋葡甘聚糖溶于10-12倍量的蒸馏水，加热至80-90℃，搅拌30-40分钟后将溶液冷却至室温待用；将浓缩乳清蛋白溶于10-12倍量的蒸馏水中，搅拌至成分溶解后与上述溶液混合，加入甘油、吐温80，加热至75-80℃，搅拌60-80分钟后加入蜂蜡，在高速搅拌器下以1000-1200转/分的速度搅拌50-60分钟，得到浸渍液；
（4）将步骤（2）得到的产物与其余剩余成分共同加入到步骤（1）得到的浆料中，搅拌均匀后通过造纸机内的网部脱水以及压榨成型，然后通过干燥腔干燥制成纸张，再通过压光热压机将纸张挤压，最后将纸张浸渍在步骤（3）得到的浸渍液中30-40秒，取出后在50-55℃下干燥24-36小时即得。
本发明的优点是：本发明首先将PAE树脂、烷基烯酮二聚体等复配，添加到纸浆的制备中，能够提高了纸浆纤维与纤维之间的结合强度，在纤维界面上形成网络状的交联结构，限制纤维之间的活动，阻碍纤维吸水润胀，降低尺寸变化，因此提高了纸的湿强度，同时复配成分分散溶解于浆料中，渗透至纤维的表面和内部，缩聚形成高分子聚合物，进一步提高了纸张的强度；通过浓缩乳清蛋白与蜂蜡的共同作用改性了魔芋葡甘聚糖，制得浸渍液通过对原纸进行浸渍，干燥后能够在纸张表面形成一层可降解的薄膜，具有良好的疏水防水性能，同时具有良好的力学性能，拉伸强度与断裂伸长率优异，进一步提高了纸张的强度，制成的产品可生物降解，防水性能优异，安全无毒。
本发明利用玉米淀粉降解后与苯乙烯、丙烯酸丁酯接枝共聚，生成具有较长碳链的高分子化合物，然后将其吸附到粉煤灰纤维表面，增强了粉煤灰纤维的强度，添加到纸张制造的过程中，提高了纸张的防腐性、耐热性，使得纸张的吸湿形变降低，提高了纸张的综合性能；本发明制成的产品，配方科学合理，原料易得，工艺便于工业控制，质量安全可完全降解，对环境无害，可以用作工业产品的外包装，也可用于需要接触有水环境的包装用纸。
具体实施方式
一种添加改性粉煤灰纤维的环保可降解防水纸，由下列重量份（公斤）的原料制备制成：烷基烯酮二聚体0.2、PAE树脂1.5、聚合氯化铝1.5、阔叶木浆60、漂白桑皮浆38、蒸馏水适量、二氧化硅4、玉米淀粉2、苯乙烯0.8、丙烯酸丁酯0.8、亚硫酸氢钠0.1、浓度为30wt%的双氧水1.6、羧甲基纤维素0.5、粉煤灰纤维9、魔芋葡甘聚糖1.8、浓缩乳清蛋白4.2、蜂蜡4、甘油0.1、吐温800.08。
所述一种添加改性粉煤灰纤维的环保可降解防水纸，由以下具体步骤制成：
（1）将阔叶木浆、漂白桑皮浆混合，加入打浆机中，然后加入PAE树脂、聚合氯化铝、烷基烯酮二聚体以及适量蒸馏水进行打浆，控制纸浆浓度为3.9%，打浆度在38SR，制得浆料；
（2）将玉米淀粉、亚硫酸氢钠、羧甲基纤维素混合，加入总量3倍量的蒸馏水，边搅拌边加热至60℃，然后加入一半量的浓度为30wt%的双氧水，恒温搅拌30分钟后升温至90℃，继续搅拌50分钟使玉米淀粉完全糊化，降温至75℃，加入苯乙烯、丙烯酸丁酯以及剩余的浓度为30wt%的双氧水，恒温搅拌90分钟后得到乳液待用；将上述乳液中加入1.5倍量的蒸馏水，搅拌分散均匀后加入粉煤灰纤维，以600转/分的速度搅拌分散30分钟后静置，抽滤，将得到的滤饼放入烘箱中以70℃干燥2小时，得到增强改性粉煤灰纤维；
（3）将魔芋葡甘聚糖溶于10倍量的蒸馏水，加热至80℃，搅拌30分钟后将溶液冷却至室温待用；将浓缩乳清蛋白溶于10倍量的蒸馏水中，搅拌至成分溶解后与上述溶液混合，加入甘油、吐温80，加热至75℃，搅拌60分钟后加入蜂蜡，在高速搅拌器下以1000转/分的速度搅拌50分钟，得到浸渍液；
（4）将步骤（2）得到的产物与其余剩余成分共同加入到步骤（1）得到的浆料中，搅拌均匀后通过造纸机内的网部脱水以及压榨成型，然后通过干燥腔干燥制成纸张，再通过压光热压机将纸张挤压，最后将纸张浸渍在步骤（3）得到的浸渍液中30秒，取出后在50℃下干燥24小时即得。
经检测，本发明制得的可降解防水纸的纵向抗张强度为1.87KN/m。

Claims (2)

1.一种添加改性粉煤灰纤维的环保可降解防水纸，其特征在于，由下列重量份的原料制备制成：烷基烯酮二聚体0.2-0.25、PAE树脂1.5-1.6、聚合氯化铝1.5-1.6、阔叶木浆60-62、漂白桑皮浆38-40、蒸馏水适量、二氧化硅4-5、玉米淀粉2-3、苯乙烯0.8-1、丙烯酸丁酯0.8-0.9、亚硫酸氢钠0.1-0.12、浓度为30wt%的双氧水1.6-2、羧甲基纤维素0.5-0.6、粉煤灰纤维9-10、魔芋葡甘聚糖1.8-1.9、浓缩乳清蛋白4.2-4.5、蜂蜡4-4.5、甘油0.1-0.12、吐温800.08-0.1。
2.根据权利要求1所述一种添加改性粉煤灰纤维的环保可降解防水纸，其特征在于，由以下具体步骤制成：
（1）将阔叶木浆、漂白桑皮浆混合，加入打浆机中，然后加入PAE树脂、聚合氯化铝、烷基烯酮二聚体以及适量蒸馏水进行打浆，控制纸浆浓度为3.9-4.2%，打浆度在38-400SR，制得浆料；
（2）将玉米淀粉、亚硫酸氢钠、羧甲基纤维素混合，加入总量3-4倍量的蒸馏水，边搅拌边加热至60-70℃，然后加入一半量的浓度为30wt%的双氧水，恒温搅拌30-40分钟后升温至90-95℃，继续搅拌50-60分钟使玉米淀粉完全糊化，降温至75-80℃，加入苯乙烯、丙烯酸丁酯以及剩余的浓度为30wt%的双氧水，恒温搅拌90-120分钟后得到乳液待用；将上述乳液中加入1.5-2倍量的蒸馏水，搅拌分散均匀后加入粉煤灰纤维，以600-800转/分的速度搅拌分散30-40分钟后静置，抽滤，将得到的滤饼放入烘箱中以70-80℃干燥2-3小时，得到增强改性粉煤灰纤维；
（3）将魔芋葡甘聚糖溶于10-12倍量的蒸馏水，加热至80-90℃，搅拌30-40分钟后将溶液冷却至室温待用；将浓缩乳清蛋白溶于10-12倍量的蒸馏水中，搅拌至成分溶解后与上述溶液混合，加入甘油、吐温80，加热至75-80℃，搅拌60-80分钟后加入蜂蜡，在高速搅拌器下以1000-1200转/分的速度搅拌50-60分钟，得到浸渍液；
（4）将步骤（2）得到的产物与其余剩余成分共同加入到步骤（1）得到的浆料中，搅拌均匀后通过造纸机内的网部脱水以及压榨成型，然后通过干燥腔干燥制成纸张，再通过压光热压机将纸张挤压，最后将纸张浸渍在步骤（3）得到的浸渍液中30-40秒，取出后在50-55℃下干燥24-36小时即得。
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