CN113502684B - 一种锌银电池用辅助隔膜及其制备方法 - Google Patents

一种锌银电池用辅助隔膜及其制备方法 Download PDF

Info

Publication number
CN113502684B
CN113502684B CN202110683886.4A CN202110683886A CN113502684B CN 113502684 B CN113502684 B CN 113502684B CN 202110683886 A CN202110683886 A CN 202110683886A CN 113502684 B CN113502684 B CN 113502684B
Authority
CN
China
Prior art keywords
pulp
zinc
equal
longitudinal
fibers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202110683886.4A
Other languages
English (en)
Other versions
CN113502684A (zh
Inventor
李红祝
刘江涛
李荣年
何世勇
胡晓东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Pengchen Paper Research Institute Co ltd
Original Assignee
Zhejiang Pengchen Paper Research Institute Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zhejiang Pengchen Paper Research Institute Co ltd filed Critical Zhejiang Pengchen Paper Research Institute Co ltd
Priority to CN202110683886.4A priority Critical patent/CN113502684B/zh
Publication of CN113502684A publication Critical patent/CN113502684A/zh
Application granted granted Critical
Publication of CN113502684B publication Critical patent/CN113502684B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H11/00Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21DTREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00Methods of beating or refining; Beaters of the Hollander type
    • D21D1/02Methods of beating; Beaters of the Hollander type
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21FPAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F11/00Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H13/00Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10Organic non-cellulose fibres
    • D21H13/12Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/14Polyalkenes, e.g. polystyrene polyethylene
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H13/00Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
    • D21H13/10Organic non-cellulose fibres
    • D21H13/12Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H13/16Polyalkenylalcohols; Polyalkenylethers; Polyalkenylesters
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H15/00Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution
    • D21H15/02Pulp or paper, comprising fibres or web-forming material characterised by features other than their chemical constitution characterised by configuration
    • D21H15/10Composite fibres
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/34Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/36Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/34Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/37Polymers of unsaturated acids or derivatives thereof, e.g. polyacrylates
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H17/00Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
    • D21H17/20Macromolecular organic compounds
    • D21H17/33Synthetic macromolecular compounds
    • D21H17/46Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • D21H17/54Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
    • D21H17/57Polyureas; Polyurethanes
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H19/00Coated paper; Coating material
    • D21H19/10Coatings without pigments
    • D21H19/12Coatings without pigments applied as a solution using water as the only solvent, e.g. in the presence of acid or alkaline compounds
    • DTEXTILES; PAPER
    • D21PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21HPULP 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
    • D21H21/00Non-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
    • D21H21/06Paper forming aids
    • D21H21/08Dispersing agents for fibres
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403Manufacturing processes of separators, membranes or diaphragms
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/40Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409Separators, membranes or diaphragms characterised by the material
    • H01M50/44Fibrous material
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Paper (AREA)
  • Cell Separators (AREA)

Abstract

本发明公开了一种锌银电池用辅助隔膜及其制备方法,属于特种纸及其制造技术领域。本发明的锌银电池用辅助隔膜,是以植物纤维、增强纤维为原料,经分散剂分散,采用湿法造纸工艺抄造成型,期间采用液体状增强剂进行表面施胶制作而成;成品纸定量为16~20g/m2,厚度为0.035~0.045mm,纵向抗张强度≥1.40kN/m,横向抗张强度≥0.40kN/m,纵向湿抗张强度≥0.35kN/m,纵向伸长率≥2.5%,纵向浸碱收缩率≤11%,横向浸碱收缩率≤12%。通过本发明制备得到的锌银电池用辅助隔膜具有定量低、厚度薄、干湿强度高、耐碱性好等特点,可满足锌银电池的使用要求。

Description

一种锌银电池用辅助隔膜及其制备方法
技术领域
本发明属于特种纸及其制造技术领域,具体涉及一种锌银电池用辅助隔膜及其制备方法。
背景技术
锌银电池具有比能量高、比功率大、放电电压平稳、可大电流放电、贮存性能好等优点,其大量运用在军工行业的导弹、运载火箭、鱼雷、卫星等武器装备中,为动力、控制、舵机、遥测、安全等系统提供电力,在民用方面,锌银电池也可运用于电子设备、医疗设备等领域。
电池隔膜被称为电池的“第三电极”,隔膜的性能优劣对电池的放电容量、输出电压、激活时间和使用寿命等有直接的影响。
锌银电池用辅助隔膜是用于包封锌银电池负极板的隔膜材料。根据锌银电池负极板制作的工艺要求,辅助隔膜应具有较高的干态强度和伸长率,以满足极板制作对隔膜的强度要求;为降低电池的内阻,要求辅助隔膜的厚度和定量尽可能的低;另外,锌银电池的电解液为40%左右的KOH水溶液,在极板化成和电池工作过程中,隔膜是浸渍在KOH水溶液中,这就要求隔膜需具有较高的湿态强度和良好的耐碱性。因此,锌银电池用辅助隔膜需具有定量低、厚度薄、干湿强度高、耐碱性好等特性。而现有的低定量纸张尚无法满足以上特性要求。
发明内容
为克服上述缺陷和不足,本发明提供了一种新的锌银电池用辅助隔膜制备方法,制成的辅助隔膜具有定量低、厚度薄、强度高、耐碱性好等特点,能满足锌银电池负极板制备的使用要求。
所述的一种锌银电池用辅助隔膜,其特征在于以植物纤维、增强纤维为原料,经分散剂分散,采用湿法造纸工艺抄造成型,期间采用液体状增强剂进行表面施胶制作而成;原料组成按重量份数计为85~95份的植物纤维、5~15份的增强纤维。
所述的一种锌银电池用辅助隔膜,其特征在于隔膜纸的定量为16~20g/m2,厚度为0.035~0.045mm,纵向抗张强度≥1.40kN/m,横向抗张强度≥0.40kN/m,纵向湿抗张强度≥0.35kN/m 纵向伸长率≥2.5%,纵向浸碱收缩率≤11%,横向浸碱收缩率≤12%。
所述的一种锌银电池用辅助隔膜,其特征在于所述的植物纤维为马尼拉麻浆、亚麻浆或构皮纤维浆中的一种。
所述的一种锌银电池用辅助隔膜,其特征在于所述的增强纤维为聚乙烯醇水溶性纤维或ES纤维。
所述的一种锌银电池用辅助隔膜,其特征在于所述的分散剂为阴离子聚丙烯酰胺或聚氧化乙烯。
所述的锌银电池用辅助隔膜的制备方法,其特征在于,包括以下步骤:
1)取重量份数为85~95份的植物纤维和重量份数为5~15份的增强纤维放入打浆机内,加入适量的水,使两种纤维在水中的质量百分比浓度为2-3%,下轻刀疏解30~40min,然后起刀将浆料放入配浆池中;
2)在配浆池中加适量的分散剂(用量为绝干纤维总重量的0.2%~0.5%)和水,搅拌均匀,配制而成的浆料质量浓度为0.1%~0.4%;
3)将通过步骤2)配制好的浆料输送至斜网锥形布浆器,浆料由斜网锥形布浆器均匀的喷在成型网上,经脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜;其中所述表面施胶过程中所用的涂胶为液体增强剂。
所述的一种锌银电池用辅助隔膜的制备方法,其特征在于,步骤3)所述表面施胶所用的液体增强剂为聚乙烯醇水溶液,质量浓度为1.0%~4.5%。
本发明中,各行业通用词语的含义为:
聚乙烯醇水溶性纤维:以聚乙烯醇为原料纺丝制得的合成纤维。将聚合度500~2000和醇解度75-99%的聚乙烯醇100份,用二甲基亚砜/水(体积比)=90~70∶10~30的混合溶剂200~400份,加入不锈钢溶解釜中,在搅拌下于温度80-120℃,压力-0.01~-0.08Mpa,溶解3~4小时,配成纺丝溶液,经过滤、脱泡、干湿法纺丝和后处理,获得的纤维即为聚乙烯醇水溶性纤维。它具有理想的粘接强度,加热加压加湿的情况下,能在纤维之间形成有效的粘结,是造纸行业中理想的纤维状增强剂。
ES纤维:ES纤维是一种皮/芯结构的双组份纤维,皮层为聚乙烯(PE),芯层为聚丙烯(PP),利用两者的熔点差,经热处理就可以实现纤维间的粘结。本发明实施例中的ES纤维购自于日本JNC株式会社。
相比于现有技术,本发明具有如下有益效果:
1)本发明采用植物纤维商品浆为原料,同时通过添加纤维状增强剂进行增强(与添加液体状增强剂相比,留着率更高),制备隔膜纸的工艺过程更加绿色环保。
2)本发明采用斜网成型技术,它能够调节纸机流浆箱前墙角的角度,使纤维在上网时能够更好的交叉排列,有利于纸张纵横向强度的调整,同时提高纸张均匀性。
3)本发明采用的纤维原料以长纤维植物纤维为主,纤维长度在4mm以上,打浆方式以疏解为主,尽可能不切断纤维,长纤维有利于提高纤维之间交织接触的面积,提高了纸张的耐撕裂性能。
4)本发明通过添加增强纤维和液体状增强剂表面施胶相结合的增强技术方法来提高纸张的强度,实现了纸张在低定量情况下,具有较高的强度。
5)本发明以植物纤维为主体原料,加入增强纤维,经打浆和分散剂分散,采用斜网成型技术湿法非织造工艺抄造,浆料由布浆器均匀的喷在成型网上,经脱水、压榨、表面施胶、烘干、卷取、分切等步骤,制得的锌银电池用辅助隔膜,具有定量低、厚度薄、强度高、耐碱性好等特点,能满足锌银电池对辅助隔膜的使用要求。
具体实施方式
下面结合具体实施例对本发明作进一步说明,但本发明的保护范围并不限于此。
实施例1
1)取95kg的马尼拉麻浆和5kg聚乙烯醇水溶性纤维(长度4mm,线密度2.0dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解30min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的阴离子聚丙烯酰胺分散剂(用量为绝干纤维总重量的0.2%)和水,搅拌均匀,配制而成的浆料质量浓度为0.1%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为4.5%,所得成品的定量为17.5 g/m2,厚度为0.038mm,纵向抗张强度为1.41kN/m,横向抗张强度为0.41kN/m,纵向湿抗张强度≥0.39kN/m,纵向伸长率为2.8%,纵向浸碱收缩率为9%,横向浸碱收缩率为10%。
实施例2
1)取90kg的马尼拉麻浆和10kg聚乙烯醇水溶性纤维(长度4mm,线密度2.0dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解30min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的阴离子聚丙烯酰胺分散剂(用量为绝干纤维总重量的0.2%)和水,搅拌均匀,配制而成的浆料质量浓度为0.2%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为1%,所得成品的定量为19.0g/m2,厚度为0.041,mm,纵向抗张强度为1.51kN/m,横向抗张强度为0.45kN/m, 纵向湿抗张强度≥0.41kN/m,纵向伸长率为3.2%,纵向浸碱收缩率为8.5%,横向浸碱收缩率为9.5%。
实施例3
1)取95kg的亚麻浆和5kg聚乙烯醇水溶性纤维(长度4mm,线密度2.0dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解40min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚氧化乙烯分散剂(用量为绝干纤维总重量的0.4%)和水,搅拌均匀,配制而成的浆料质量浓度为0.3%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为2.5%,所得产品的定量为17.8 g/m2,厚度0.038mm,纵向抗张强度为1.43kN/m,横向抗张强度为0.41kN/m,纵向湿抗张强度≥0.38kN/m,纵向伸长率为3.1%,纵向浸碱收缩率为10%,横向浸碱收缩率为10.5%。
实施例4
1)取90kg的亚麻浆和10kg聚乙烯醇水溶性纤维(长度4mm,线密度2.0dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解40min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚氧化乙烯分散剂(用量为绝干纤维总重量的0.3%)和水,搅拌均匀,配制而成的浆料质量浓度为0.4%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为3.5%,所得成品的定量为19.0g/m2,厚度0.045mm,纵向抗张强度为1.51kN/m,横向抗张强度为0.45kN/m, 纵向湿抗张强度≥0.40kN/m,纵向伸长率为3.6%,纵向浸碱收缩率为8%,横向收缩率为8.5%。
实施例5
1)取95kg的麻尼拉麻浆和5kg ES纤维(长度4mm,线密度1.67dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解30min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的阴离子聚丙烯酰胺分散剂(用量为绝干纤维总重量的0.2%)和水,搅拌均匀,配制而成的浆料质量浓度为0.1%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为4.5%,所得成品的定量为17.7 g/m2,厚度0.040mm,纵向抗张强度为1.46kN/m,横向抗张强度为0.43kN/m,纵向湿抗张强度≥0.37kN/m,纵向伸长率为3.2%,纵向浸碱收缩率为10%,横向浸碱收缩率为11%。
实施例6
1)取85kg的麻尼拉麻浆和15kg ES纤维(长度4mm,线密度1.67dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解30min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的阴离子聚丙烯酰胺分散剂(用量为绝干纤维总重量的0.2%)和水,搅拌均匀,配制而成的浆料质量浓度为0.2%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为1.5%,所得成品的定量为18.5g/m2,厚度0.043mm,纵向抗张强度为1.48kN/m,横向抗张强度为0.43kN/m,纵向湿抗张强度≥0.39kN/m,纵向伸长率为3.2%,纵向浸碱收缩率为9.8%,横向浸碱收缩率为10.5%。
实施例7
1)取95kg的亚麻浆和5kg ES纤维(长度4mm,线密度1.67dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解40min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚氧化乙烯分散剂(用量为绝干纤维总重量的0.5%)和水,搅拌均匀,配制而成的浆料质量浓度为0.3%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为2.5%,所得成品的定量为18.8g/m2,厚度为0.042mm,纵向抗张强度为1.43kN/m,横向抗张强度为0.40kN/m,纵向湿抗张强度≥0.38kN/m,纵向伸长率为3.4%,纵向浸碱收缩率为10%,横向浸碱收缩率为10.6%。
实施例8
1)取90kg的亚麻浆和10kg ES纤维(长度4mm,线密度1.67dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解40min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚氧化乙烯分散剂(用量为绝干纤维总重量的0.3%)和水,搅拌均匀,配制而成的浆料质量浓度为0.4%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为3.5%,所得成品的定量为19.6g/m2,厚度为0.046mm,纵向抗张强度为1.65kN/m,横向抗张强度为0.44kN/m,纵向湿抗张强度≥0.42kN/m,纵向伸长率为3.5%,纵向浸碱收缩率为8.6%,横向浸碱收缩率为9.2%。
实施例9
1)取95kg的构皮纤维浆和5kg聚乙烯醇水溶性纤维(长度4mm,线密度2.0dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解40min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚氧化乙烯分散剂(用量为绝干纤维总重量的0.3%)和水,搅拌均匀,配制而成的浆料质量浓度为0.4%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为4.5%,所得成品的定量为18.1g/m2,厚度0.041mm,纵向抗张强度为1.49kN/m,横向抗张强度为0.43kN/m,纵向湿抗张强度≥0.39kN/m,纵向伸长率为3.5%,纵向浸碱收缩率为9%,横向收缩率为9.5%。
实施例10
1)取90kg的构皮纤维浆和10kg ES纤维(长度4mm,线密度1.67dtex)放入已贮有3900kg水的打浆机中,纤维在水中的质量浓度为2.5%,下轻刀疏解30min,然后起刀将浆料放入配浆池中。
2)在配浆池中加入一定量的聚丙烯酰胺分散剂(用量为绝干纤维总重量的0.2%)和水,搅拌均匀,配制而成的浆料质量浓度为0.3%。
3)将配置好的浆料输送至斜网锥形布浆器,经上网成型、脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜,表面施胶过程中所用的液体状增强剂为聚乙烯醇水溶液,质量浓度为4.0%,所得成品的定量为19.1g/m2,厚度0.045mm,纵向抗张强度为1.50kN/m,横向抗张强度为0.41kN/m,纵向湿抗张强度≥0.45kN/m,纵向伸长率为3.2%,纵向浸碱收缩率为8.5%,横向收缩率为9%。
本发明采用以100%植物纤维(马尼拉麻浆、亚麻浆或构皮纤维浆中的任意一种)为原料,经分散剂分散,采用湿法造纸工艺抄造成型,期间采用聚乙烯醇水溶液(质量浓度为4.0%)进行表面施胶制作隔膜。试验结果表明,隔膜的纵、横向强度和湿强度达不到技术指标要求。我们采取了添加增强纤维与聚乙烯醇表面施胶相结合的增强技术措施,取得了良好的技术效果。
本说明书所述的内容仅仅是对发明构思实现形式的列举,本发明的保护范围不应当被视为仅限于实施例所陈述的具体形式。

Claims (3)

1.一种锌银电池用辅助隔膜,其特征在于以植物纤维、增强纤维为原料,经分散剂分散,采用湿法造纸工艺抄造成型,期间采用液体状增强剂进行表面施胶制作而成;原料组成按重量份数计为85~95份的植物纤维、5~15份的增强纤维;
隔膜纸的定量为16~20g/m2,厚度为0.035~0.045mm,纵向抗张强度≥1.40kN/m,横向抗张强度≥0.40kN/m,纵向湿抗张强度≥0.35kN/m 纵向伸长率≥2.5%,纵向浸碱收缩率≤11%,横向浸碱收缩率≤12%;
所述的植物纤维为马尼拉麻浆、亚麻浆或构皮纤维浆中的一种;
所述的增强纤维为聚乙烯醇水溶性纤维或ES纤维;
表面施胶所用的液体增强剂为聚乙烯醇水溶液,质量浓度为1.0%~4.5%。
2.根据权利要求1所述的一种锌银电池用辅助隔膜,其特征在于所述的分散剂为阴离子聚丙烯酰胺或聚氧化乙烯。
3.一种如权利要求1所述的一种锌银电池用辅助隔膜的制备方法,其特征在于,包括以下步骤:
1)取重量份数为85~95份的植物纤维和重量份数为5~15份的增强纤维放入打浆机内,加入适量的水,使两种纤维在水中的质量百分比浓度为2-3%,下轻刀疏解30~40min,然后起刀将浆料放入配浆池中;
2)在配浆池中加适量的用量为绝干纤维总重量的0.2%~0.5%的分散剂和水,搅拌均匀,配制而成的浆料质量浓度为0.1%~0.4%;
3)将通过步骤2)配制好的浆料输送至斜网锥形布浆器,浆料由斜网锥形布浆器均匀的喷在成型网上,经脱水、压榨、表面施胶、烘干、卷取后,分切成盘得到锌银电池用辅助隔膜;其中所述表面施胶过程中所用的涂胶为液体增强剂。
CN202110683886.4A 2021-06-21 2021-06-21 一种锌银电池用辅助隔膜及其制备方法 Active CN113502684B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110683886.4A CN113502684B (zh) 2021-06-21 2021-06-21 一种锌银电池用辅助隔膜及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110683886.4A CN113502684B (zh) 2021-06-21 2021-06-21 一种锌银电池用辅助隔膜及其制备方法

Publications (2)

Publication Number Publication Date
CN113502684A CN113502684A (zh) 2021-10-15
CN113502684B true CN113502684B (zh) 2022-10-14

Family

ID=78010279

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110683886.4A Active CN113502684B (zh) 2021-06-21 2021-06-21 一种锌银电池用辅助隔膜及其制备方法

Country Status (1)

Country Link
CN (1) CN113502684B (zh)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69836059T2 (de) * 1997-10-03 2007-05-10 Nippon Chemi-Con Corp., Ome Elektrolytkondensator
CN102728144B (zh) * 2012-06-27 2015-09-16 吕凯 湿法造纸成型电池电容器隔膜过滤材料及其制备方法
WO2014113944A1 (zh) * 2013-01-23 2014-07-31 华南理工大学 一种隔膜纸及其制备方法和应用
CN105887553B (zh) * 2014-12-26 2018-07-13 中国制浆造纸研究院有限公司 一种超级电容器介电吸收材料及其生产方法
CN104631198B (zh) * 2015-01-28 2017-05-31 浙江省普瑞科技有限公司 一种无汞碱性锌锰电池用隔膜纸及其制备方法
CN106592322B (zh) * 2016-10-10 2019-02-12 天津科技大学 一种碱性电池隔膜纸的制备方法
CN108978354A (zh) * 2018-09-10 2018-12-11 浙江凯恩特种纸业有限公司 一种增强型超级电解电容器隔膜纸及其生产方法

Also Published As

Publication number Publication date
CN113502684A (zh) 2021-10-15

Similar Documents

Publication Publication Date Title
CN104631198B (zh) 一种无汞碱性锌锰电池用隔膜纸及其制备方法
CN105870383B (zh) 一种电池电容器隔膜及其制备方法
CN101581054B (zh) 一种涂胶碱性电池隔膜纸的纸浆料及应用该纸浆料制备隔膜纸的制备工艺
CN113502684B (zh) 一种锌银电池用辅助隔膜及其制备方法
CN106223104B (zh) 一种采用芳砜纶制备芳纶复合纸的方法
JPWO2018003936A1 (ja) キャパシタ用セパレータ
CN109577102B (zh) 一种电解电容器纸及其制备方法
CN103114495B (zh) 一种燃料电池电极扩散层用碳纸及其制备方法
CN1948615A (zh) 含有玄武岩纤维及化学纤维的合成纤维纸及其制备方法
CN100341169C (zh) 一种铅酸起动蓄电池隔板及制备方法
CN113991246A (zh) 一种高稳定性、高循环寿命电池隔膜的制备方法
CN106229448B (zh) 一种锂电池隔膜纸及其制备方法
CN113300047B (zh) 一种碱性电池专用高性能复合隔膜材料的制备方法
CN106159166A (zh) 一种快速吸液耐碱隔膜材料及其生产方法
CN113914142B (zh) 一种锌银电池用亲水性隔膜纸及其制备方法
CN108666510A (zh) 一种锂电池隔膜纸及其制造方法
CN113529475B (zh) 一种耐高温绝缘纸板生产方法
CN114709560A (zh) 一种锂离子电池隔膜纸及其制备方法
CN106192545B (zh) 一种使用高填料造纸污泥生产鞋用半托底纸板的方法
CN111180643A (zh) 一种起停电池用agm隔板及其制备方法
EP0569938A1 (en) Separator for electrolytic capacitors
CN113863046A (zh) 一种热固性空气滤纸及其制备方法
CN101933649B (zh) 提高辊压法薄片抗碎性的工艺方法
CN110700002B (zh) 一种绝缘钢纸中面纸的制作工艺
CN115051114B (zh) 一种梯度压花agm隔板及其制备方法

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant