CN108049240A - 一种复合型造纸湿强剂及其制备方法 - Google Patents

一种复合型造纸湿强剂及其制备方法 Download PDF

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CN108049240A
CN108049240A CN201711102105.8A CN201711102105A CN108049240A CN 108049240 A CN108049240 A CN 108049240A CN 201711102105 A CN201711102105 A CN 201711102105A CN 108049240 A CN108049240 A CN 108049240A
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strength agent
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sodium carboxymethylcellulose
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邓强
董宝明
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Suzhou Heng Kang New Material Co Ltd
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    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
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    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/53—Polyethers; Polyesters
    • D—TEXTILES; PAPER
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    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/09—Sulfur-containing compounds
    • D—TEXTILES; PAPER
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    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/03—Non-macromolecular organic compounds
    • D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
    • D21H17/14—Carboxylic acids; Derivatives thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
    • D21H17/24—Polysaccharides
    • D21H17/25—Cellulose
    • D21H17/26—Ethers thereof
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20—Macromolecular organic compounds
    • D21H17/33—Synthetic macromolecular compounds
    • D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/47—Condensation polymers of aldehydes or ketones
    • D21H17/49—Condensation polymers of aldehydes or ketones with compounds containing hydrogen bound to nitrogen
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/18—Reinforcing agents
    • D21H21/20—Wet strength agents

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Abstract

本发明属于造纸技术领域，特别涉及一种复合型造纸湿强剂及其制备方法，复合型湿强剂由以下成分按照重量比组成：脲醛树脂为5‑9份、羧甲基纤维素钠为4‑7份、醋酸钾为8‑10份、对甲基苯磺酸为2‑4份、聚乙二醇为4‑6份、丙酮为5‑8份、水为105‑120份。本发明的复合型湿强剂具有较好的稳定性和干湿抗张强度，可以广泛应用于造纸行业中，提升产品的品质。

Description

一种复合型造纸湿强剂及其制备方法
技术领域
本发明涉及造纸技术领域，特别涉及一种令纸张抗张强度高、稳定性高的复合型造纸湿强剂及其制备方法。
背景技术
造纸的工艺流程较多，过程中包括原料的选择、分类纤维、漂白、制浆、抄纸、涂布、加工等步骤。整个造纸的过程较为复杂，在造纸的过程中，其中的造纸助剂的加入会对纸张成品的性能有较大的影响。加入的造纸助剂的比例及种类对成型纸的物理性能有较大的作用。其中湿强剂为一个重要的造纸助剂。
湿强剂有长久性湿强剂和临时性湿强剂。常规的湿强剂应用在纸制品当中，其抗张强度提升较小，不能较好的提升纸张的质量。要提高湿强剂的作用，需要增强纤维之间的强度、形成对水不敏感的化学键、形成复杂的聚合物网络等，才能有效的提升湿强剂的性能，提高纸品的抗张强度。
因此，有必要提供一种新的湿强剂来解决以上问题。
发明内容
本发明的主要目的是为了提供一种令纸张抗张强度高、稳定性高的复合型造纸湿强剂及其制备方法。
本发明通过如下技术方案实现上述目的：
一种复合型湿强剂，由以下成分按照重量比组成：脲醛树脂为5-9份、羧甲基纤维素钠为4-7份、醋酸钾为8-10份、对甲基苯磺酸为2-4份、聚乙二醇为4-6份、丙酮为5-8份、水为105-120份。
具体的，所述脲醛树脂优选为5-7份。
具体的，所述聚乙二醇分子量优选为300-500。
具体的，所述羧甲基纤维素钠优选为7份。
一种复合型湿强剂的制备方法，制备方法包括如下步骤：
(1)将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，加热到75-85℃，搅拌至均匀；
(2)60℃温度温度下将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为75-85℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
与现有技术相比，本发明一种复合型造纸湿强剂的有益效果在于：
本发明的复合型湿强剂具有较好的稳定性和干湿抗张强度，可以广泛应用于造纸行业中，提升产品的品质。
具体实施方式
一种复合型造纸湿强剂的制备方法，步骤包括：
(1)将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，加热到75-85℃，搅拌至均匀；
(2)60℃温度温度下将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为75-85℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
以下实施例用于说明本发明，但不用来限制本发明的范围。
实施例1
(1)取脲醛树脂为7kg、醋酸钾为8kg、对甲基苯磺酸为3kg、聚乙二醇为4kg、丙酮为8kg，加热到75℃下将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，搅拌至均匀；
(2)取羧甲基纤维素钠为4kg、水为120kg，温度调节至60℃后将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为75℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
实施例2
(1)取脲醛树脂为9kg、醋酸钾为9kg、对甲基苯磺酸为2kg、聚乙二醇为6kg、丙酮为5kg，加热到85℃下将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，搅拌至均匀；
(2)取羧甲基纤维素钠为5kg、水为110kg，温度调节至60℃后将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为85℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
实施例3
(1)取脲醛树脂为5kg、醋酸钾为10kg、对甲基苯磺酸为4kg、聚乙二醇为5kg、丙酮为7kg，加热到80℃下将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，搅拌至均匀；
(2)取羧甲基纤维素钠为7kg、水为105kg，温度调节至60℃后将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为80℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
实施例1～3的复合型湿强剂的固形物含量和离心稳定性(4000rpm速度下离心)情况如下表：
实施例1 实施例2 实施例3
固形物含量 17.1wt％ 16.3wt％ 18.2wt％
离心稳定性 50min后无分层 50min后无分层 50min后无分层
取普通纸张，定量为70g/m2，将实施例1～3的复合型湿强剂稀释至15wt％浓度后涂布在纸张的正反两面，稀释液涂布量为8g/m2，同时进行空白试验，涂布后进行干燥，干燥温度为70℃，彻底干燥后测定空白组和实施例1～3的干强抗张强度和湿强抗张强度，数据如下：
空白 实施例1 实施例2 实施例3
干抗张强度(N·m/g) 27.9 98.4 97.9 95.8
湿抗张强度(N·m/g) 15.3 47.7 49.2 46.5
由以上两个表可知，本发明的复合型湿强剂具有较好的稳定性和干湿抗张强度，可以广泛应用于造纸行业中，提升产品的品质。
以上所述的仅是本发明的一些实施方式。对于本领域的普通技术人员来说，在不脱离本发明创造构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。

Claims (5)

1.一种复合型湿强剂，其特征在于由以下成分按照重量比组成：脲醛树脂为5-9份、羧甲基纤维素钠为4-7份、醋酸钾为8-10份、对甲基苯磺酸为2-4份、聚乙二醇为4-6份、丙酮为5-8份、水为105-120份。
2.根据权利要求1所述的制备方法，其特征在于：所述脲醛树脂为5-7份。
3.根据权利要求1所述的制备方法，其特征在于：所述聚乙二醇分子量为300-500。
4.根据权利要求1所述的制备方法，其特征在于：所述羧甲基纤维素钠为7份。
5.一种关于权利要求1～4任一所述复合型湿强剂的制备方法，其特征在于制备方法包括如下步骤：
(1)将脲醛树脂、醋酸钾、对甲基苯磺酸、聚乙二醇、丙酮进行混合，加热到75-85℃，搅拌至均匀；
(2)60℃温度温度下将羧甲基纤维素钠用水溶解均匀；
(3)将羧甲基纤维素钠的水溶液加入到步骤(1)中的混合物中，温度仍为75-85℃，搅拌90min；
(4)将湿强剂降温至室温下，制备得到复合型湿强剂。
CN201711102105.8A 2017-11-10 2017-11-10 一种复合型造纸湿强剂及其制备方法 Pending CN108049240A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763379A (zh) * 2018-11-26 2019-05-17 苏州恒康新材料有限公司 一种高环压强度耐破型造纸湿强剂

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190773A (zh) * 2010-03-11 2011-09-21 段全义 一种造纸用脲醛树脂湿强剂的制备方法
CN103215853A (zh) * 2013-03-29 2013-07-24 金红叶纸业集团有限公司 湿强剂、纸生产工艺及纸
CN103866634A (zh) * 2014-02-28 2014-06-18 苏州恒康新材料有限公司 一种复合湿强剂及其制备方法
CN106460343A (zh) * 2014-05-20 2017-02-22 佐治亚-太平洋消费产品有限合伙公司 非‑木纤维的漂白和植物性杂质减少方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190773A (zh) * 2010-03-11 2011-09-21 段全义 一种造纸用脲醛树脂湿强剂的制备方法
CN103215853A (zh) * 2013-03-29 2013-07-24 金红叶纸业集团有限公司 湿强剂、纸生产工艺及纸
CN103866634A (zh) * 2014-02-28 2014-06-18 苏州恒康新材料有限公司 一种复合湿强剂及其制备方法
CN106460343A (zh) * 2014-05-20 2017-02-22 佐治亚-太平洋消费产品有限合伙公司 非‑木纤维的漂白和植物性杂质减少方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109763379A (zh) * 2018-11-26 2019-05-17 苏州恒康新材料有限公司 一种高环压强度耐破型造纸湿强剂

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Application publication date: 20180518