CN109162143A - 一种高透气性热水纸杯制备方法 - Google Patents

一种高透气性热水纸杯制备方法 Download PDF

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CN109162143A
CN109162143A CN201811004125.6A CN201811004125A CN109162143A CN 109162143 A CN109162143 A CN 109162143A CN 201811004125 A CN201811004125 A CN 201811004125A CN 109162143 A CN109162143 A CN 109162143A
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王生龙
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Anqing Shuanglong Paper Co Ltd
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Abstract

本发明公开了一种高透气性热水纸杯制备方法，包括如下步骤：将构树木浆、阔叶木浆、改性聚乙二醇、水混合，磨浆，然后加入微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉混合均匀，氢氧化钠溶液调节体系至中性得到预制浆料；向预制浆料中加入硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥，裁边得到高透气性热水纸杯。改性聚乙二醇采用如下工艺制备：将E51型环氧树脂、聚乙二醇4000混合均匀，加入聚醚胺D230、三‑(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度搅拌，冷却，干燥，粉碎得到改性聚乙二醇。

Description

一种高透气性热水纸杯制备方法
技术领域
本发明涉及纸杯技术领域，尤其涉及一种高透气性热水纸杯制备方法。
背景技术
在高档食品卡原纸，如纸杯原纸，需与液体食品进行接触，有些还需与热的液体食品接触，则对纸张的力学性能、抗热水性能要求较高。因此这类食品卡原纸的制备工艺中通常需要进行浆内重施胶，但淋膜后薄膜与热水接触易出现透气性差的技术问题。
发明内容
基于背景技术存在的技术问题，本发明提出了一种高透气性热水纸杯制备方法，可有效增强纸杯的强度，在保证纸杯力学性能优异的基础上，也不会对纸杯的微孔结构造成堵塞，保证纸杯的透气性，显著提高使用寿命。
本发明提出的一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将构树木浆、阔叶木浆、改性聚乙二醇、水混合，磨浆，然后加入微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉混合均匀，氢氧化钠溶液调节体系至中性得到预制浆料；
S2、向预制浆料中加入硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥，裁边得到高透气性热水纸杯。
优选地，S1中，构树木浆、阔叶木浆、改性聚乙二醇、水、微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉的重量比为30-40：20-30：6-14：25-35：8-16：4-8：2-4：2-4：0.8-1.6。
优选地，S1中，将构树木浆、阔叶木浆、改性聚乙二醇、水混合，磨浆，然后加入微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉混合均匀，采用浓度为1.6-2.2mol/L氢氧化钠溶液调节体系至中性得到预制浆料
优选地，S1中，改性聚乙二醇采用如下工艺制备：将E51型环氧树脂、聚乙二醇4000混合均匀，加入聚醚胺D230、三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度搅拌，冷却，干燥，粉碎得到改性聚乙二醇。
本发明的改性聚乙二醇中，E51型环氧树脂与聚乙二醇4000复配，在固化剂聚醚胺D230、促进剂三-(二甲胺基甲基)苯酚的作用下发生交联反应，形成网络结构，聚乙二醇分散在网络结构中，限制了聚乙二醇结晶链段的自由运动，热稳定性好。
优选地，S1的改性聚乙二醇制备工艺中，E51型环氧树脂、聚乙二醇4000、聚醚胺D230、三-(二甲胺基甲基)苯酚的重量比为25-35：110-130：1.5-2.5：0.3-0.5。
优选地，S1中，改性聚乙二醇采用如下工艺制备：将E51型环氧树脂、聚乙二醇4000混合均匀，加入聚醚胺D230、三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至85-95℃，搅拌6-10h，冷却，干燥，粉碎得到改性聚乙二醇。
优选地，S2中，预制浆料、硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂的重量比为70-90：8-16：2-4：8-16：18-24：18-22：0.8-1.6。
优选地，S2中，向预制浆料中加入硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥4-6min，加热干燥温度为160-180℃，裁边得到高透气性热水纸杯。
由于构树木浆、阔叶木浆的初生壁结构质密，本发明经过磨浆处理后，纤维的结晶度降低，同心层产生弯曲、发生位移和变形，纤维产生裂纹及表面分丝起毛，纤维层和层间变的疏松，纤维丝层间空隙变大，改性聚乙二醇易于进入纤维丝层间空隙，增强了木浆纤维和微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉的结合能力，纤维之间的结合能高，可有效增强纸杯的强度，在保证纸杯力学性能优异的基础上，也不会对纸杯的微孔结构造成堵塞，保证纸杯的透气性，显著提高使用寿命。本发明原料来源广，成本较低，便于大规模生产。
具体实施方式
下面，通过具体实施例对本发明的技术方案进行详细说明。
实施例1
一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将30kg构树木浆、30kg阔叶木浆、6kg改性聚乙二醇、35kg水混合，磨浆，然后加入8kg微晶纤维素、8kg聚氨酯树脂、2kg醇酸树脂、4kg丁苯橡胶、0.8kg阳离子淀粉混合均匀，采用浓度为2.2mol/L氢氧化钠溶液调节体系至中性得到预制浆料；
改性聚乙二醇采用如下工艺制备：将25kg E51型环氧树脂、130kg聚乙二醇4000混合均匀，加入1.5kg聚醚胺D230、0.5kg三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至85℃，搅拌10h，冷却，干燥，粉碎得到改性聚乙二醇；
S2、向70kg预制浆料中加入16kg硫酸铝、2kg阳离子松香、16kg轻质碳酸钙、18kg煅烧高岭土、22kg蒙脱土、0.8kg抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥6min，加热干燥温度为160℃，裁边得到高透气性热水纸杯。
实施例2
一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将40kg构树木浆、20kg阔叶木浆、14kg改性聚乙二醇、25kg水混合，磨浆，然后加入16kg微晶纤维素、4kg聚氨酯树脂、4kg醇酸树脂、2kg丁苯橡胶、1.6kg阳离子淀粉混合均匀，采用浓度为1.6mol/L氢氧化钠溶液调节体系至中性得到预制浆料；
改性聚乙二醇采用如下工艺制备：将35kg E51型环氧树脂、110kg聚乙二醇4000混合均匀，加入2.5kg聚醚胺D230、0.3kg三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至95℃，搅拌6h，冷却，干燥，粉碎得到改性聚乙二醇；
S2、向90kg预制浆料中加入8kg硫酸铝、4kg阳离子松香、8kg轻质碳酸钙、24kg煅烧高岭土、18kg蒙脱土、1.6kg抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥4min，加热干燥温度为180℃，裁边得到高透气性热水纸杯。
实施例3
一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将33kg构树木浆、28kg阔叶木浆、8kg改性聚乙二醇、32kg水混合，磨浆，然后加入10kg微晶纤维素、7kg聚氨酯树脂、2.5kg醇酸树脂、3.5kg丁苯橡胶、1kg阳离子淀粉混合均匀，采用浓度为2mol/L氢氧化钠溶液调节体系至中性得到预制浆料；
改性聚乙二醇采用如下工艺制备：将28kg E51型环氧树脂、125kg聚乙二醇4000混合均匀，加入1.8kg聚醚胺D230、0.45kg三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至88℃，搅拌9h，冷却，干燥，粉碎得到改性聚乙二醇；
S2、向75kg预制浆料中加入14kg硫酸铝、2.5kg阳离子松香、14kg轻质碳酸钙、20kg煅烧高岭土、21kg蒙脱土、1kg抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥5.5min，加热干燥温度为165℃，裁边得到高透气性热水纸杯。
实施例4
一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将37kg构树木浆、22kg阔叶木浆、12kg改性聚乙二醇、28kg水混合，磨浆，然后加入14kg微晶纤维素、5kg聚氨酯树脂、3.5kg醇酸树脂、2.5kg丁苯橡胶、1.4kg阳离子淀粉混合均匀，采用浓度为1.8mol/L氢氧化钠溶液调节体系至中性得到预制浆料；
改性聚乙二醇采用如下工艺制备：将32kg E51型环氧树脂、115kg聚乙二醇4000混合均匀，加入2.2kg聚醚胺D230、0.35kg三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至92℃，搅拌7h，冷却，干燥，粉碎得到改性聚乙二醇；
S2、向85kg预制浆料中加入10kg硫酸铝、3.5kg阳离子松香、10kg轻质碳酸钙、22kg煅烧高岭土、19kg蒙脱土、1.4kg抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥4.5min，加热干燥温度为175℃，裁边得到高透气性热水纸杯。
实施例5
一种高透气性热水纸杯制备方法，包括如下步骤：
S1、将35kg构树木浆、25kg阔叶木浆、10kg改性聚乙二醇、30kg水混合，磨浆，然后加入12kg微晶纤维素、6kg聚氨酯树脂、3kg醇酸树脂、3kg丁苯橡胶、1.2kg阳离子淀粉混合均匀，采用浓度为1.9mol/L氢氧化钠溶液调节体系至中性得到预制浆料；
改性聚乙二醇采用如下工艺制备：将30kg E51型环氧树脂、120kg聚乙二醇4000混合均匀，加入2kg聚醚胺D230、0.4kg三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至90℃，搅拌8h，冷却，干燥，粉碎得到改性聚乙二醇；
S2、向80kg预制浆料中加入12kg硫酸铝、3kg阳离子松香、12kg轻质碳酸钙、21kg煅烧高岭土、20kg蒙脱土、1.2kg抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥5min，加热干燥温度为170℃，裁边得到高透气性热水纸杯。
将实施例5所得高透气性热水纸杯和市售普通纸杯进行性能测试，其结果如下：
实施例5 市售普通纸杯
抗张指数，N·m/g 88.02 72.87
耐折度，次 164 121
耐破指数，kPa·m<sup>2</sup>/g 7.5 6.5
撕裂指数，mN·m<sup>2</sup>/g 11.14 9.08
挺度，mN 9826 6418
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种高透气性热水纸杯制备方法，其特征在于，包括如下步骤：
S1、将构树木浆、阔叶木浆、改性聚乙二醇、水混合，磨浆，然后加入微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉混合均匀，氢氧化钠溶液调节体系至中性得到预制浆料；
S2、向预制浆料中加入硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥，裁边得到高透气性热水纸杯。
2.根据权利要求1所述高透气性热水纸杯制备方法，其特征在于，S1中，构树木浆、阔叶木浆、改性聚乙二醇、水、微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉的重量比为30-40：20-30：6-14：25-35：8-16：4-8：2-4：2-4：0.8-1.6。
3.根据权利要求1或2所述高透气性热水纸杯制备方法，其特征在于，S1中，将构树木浆、阔叶木浆、改性聚乙二醇、水混合，磨浆，然后加入微晶纤维素、聚氨酯树脂、醇酸树脂、丁苯橡胶、阳离子淀粉混合均匀，采用浓度为1.6-2.2mol/L氢氧化钠溶液调节体系至中性得到预制浆料。
4.根据权利要求1-3任一项所述高透气性热水纸杯制备方法，其特征在于，S1中，改性聚乙二醇采用如下工艺制备：将E51型环氧树脂、聚乙二醇4000混合均匀，加入聚醚胺D230、三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度搅拌，冷却，干燥，粉碎得到改性聚乙二醇。
5.根据权利要求4所述高透气性热水纸杯制备方法，其特征在于，S1的改性聚乙二醇制备工艺中，E51型环氧树脂、聚乙二醇4000、聚醚胺D230、三-(二甲胺基甲基)苯酚的重量比为25-35：110-130：1.5-2.5：0.3-0.5。
6.根据权利要求4或5所述高透气性热水纸杯制备方法，其特征在于，S1 中，改性聚乙二醇采用如下工艺制备：将E51型环氧树脂、聚乙二醇4000混合均匀，加入聚醚胺D230、三-(二甲胺基甲基)苯酚混合均匀，真空脱气，调节温度至85-95℃，搅拌6-10h，冷却，干燥，粉碎得到改性聚乙二醇。
7.根据权利要求1-6任一项所述高透气性热水纸杯制备方法，其特征在于，S2中，预制浆料、硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂的重量比为70-90：8-16：2-4：8-16：18-24：18-22：0.8-1.6。
8.根据权利要求1-7任一项所述高透气性热水纸杯制备方法，其特征在于，S2中，向预制浆料中加入硫酸铝、阳离子松香、轻质碳酸钙、煅烧高岭土、蒙脱土、抗光氧化剂混合均匀，注入杯盖的模具中，在模具压合状态下进行加热干燥4-6min，加热干燥温度为160-180℃，裁边得到高透气性热水纸杯。
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