CN115262086A - 一种复合式熔喷脱模布及制造工艺 - Google Patents

一种复合式熔喷脱模布及制造工艺 Download PDF

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CN115262086A
CN115262086A CN202210941390.7A CN202210941390A CN115262086A CN 115262086 A CN115262086 A CN 115262086A CN 202210941390 A CN202210941390 A CN 202210941390A CN 115262086 A CN115262086 A CN 115262086A
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melt
cloth
blown
layer
composite
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刘烈新
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Shanghai Liexin Management Consulting Co ltd
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/56—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving in association with fibre formation, e.g. immediately following extrusion of staple fibres
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F1/00—General methods for the manufacture of artificial filaments or the like
    • D01F1/02—Addition of substances to the spinning solution or to the melt
    • D01F1/10—Other agents for modifying properties
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/544—Olefin series
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/542—Adhesive fibres
    • D04H1/55—Polyesters
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/54—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving
    • D04H1/559—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties by welding together the fibres, e.g. by partially melting or dissolving the fibres being within layered webs
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C23/00—Making patterns or designs on fabrics
    • D06C23/04—Making patterns or designs on fabrics by shrinking, embossing, moiréing, or crêping
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06C—FINISHING, DRESSING, TENTERING OR STRETCHING TEXTILE FABRICS
    • D06C7/00—Heating or cooling textile fabrics
    • D06C7/02—Setting

Abstract

本发明涉及复合材料技术领域，特别是一种复合式熔喷脱模布及制造工艺，与现有技术相比，该复合式熔喷脱模布采用三层结构，内外层为：90‑97％聚丙烯(PP)或聚酯PBT+3‑10％氟化微粉；中间层为：80‑95％三元共聚聚丙烯(PP)和20％‑5％弹性体，内外层使用氟化改性树脂，可以有效降低脱模布本身张力，帮助复材辅助成型时脱模使用，减少了原先涂覆、烘干工艺；材料上中间层使用弹性体改性树脂，通过弹性材料改性增加整体脱模布的韧性和加工延伸性；本工艺主要是完全颠覆原有脱模布工艺制造技术，为一体熔喷制造，减少了整经、穿纹、涂覆、烘干等工序，大大缩短了制程工序和制造时间，并且具有透气、自离型、高拉伸性等优点。

Description

一种复合式熔喷脱模布及制造工艺
技术领域
本发明涉及复合材料技术领域，特别是一种复合式熔喷脱模布及制造工艺。
背景技术
现有技术中的脱模布成型工艺复杂，需要经过整经、穿纹、涂覆、烘干等一序列工序，而且采用这传统工艺成型的脱模布无法使用在复合材料成型领域。
发明内容
为解决现有技术中脱模布成型所存在的缺陷和问题，提供一种复合式熔喷脱模布及制造工艺。
本发明为解决其技术问题所采用的技术方案是：本发明的一种复合式熔喷脱模布采用三层结构，内外层为：90-97％聚丙烯(PP)或聚酯PBT+3-10％氟化微粉；中间层为：80-95％三元共聚聚丙烯(PP)和20％-5％弹性体。
其成形工艺如下：
(1)、首先用熔喷头进行喷出成型，将高弹性聚烯烃树脂通过熔喷头高速熔喷出短纤维丝，细流形成平行纤维束，通过滚筒收卷形成单向直线纤维布；
(2)、然后改造熔喷头为左右结构，并将单向直条纤维布直线悬挂放置在网帘上，网帘可以水平上下移动，通过熔喷头将内外层低表面张力树脂均匀的无规则的熔喷附着在单向直线纤维布两面，使其单向布上下两面都有短纤交织覆盖，形成三明治结构，并且由于短纤在面上的相互交错，形成细小微孔空隙，帮助成型时气体排出；
(3)、再通过若干道热轧工艺进行加固结合，在热压辊上分布横纵向不同的经纬纹路，在热压时整体布料表面形成布料纹路，再次增加三层布料的结合性，增加拉伸强度和断裂伸长率；
(4)、最后经过冷却定型，再经过切割收卷起来形成完整脱模布。
所述的熔喷头采用直线熔喷喷头型，熔喷板为滚筒状。
所述的热轧工艺为3-5道，热压温度为80-150℃。
本发明的有益效果是：与现有技术相比，本发明的一种复合式熔喷脱模布材料上内外层使用氟化改性树脂，可以有效降低脱模布本身张力，帮助复材辅助成型时脱模使用，减少了原先涂覆、烘干工艺；材料上中间层使用弹性体改性树脂，通过弹性材料改性增加整体脱模布的韧性和加工延伸性；本工艺主要是完全颠覆原有脱模布工艺制造技术，为一体熔喷制造，减少了整经、穿纹、涂覆、烘干等工序，大大缩短了制程工序和制造时间，并且具有透气、自离型、高拉伸性等优点；本工艺采用熔喷方式，增加了脱模布的孔隙率，帮助成型时多余气体的排除。
具体实施方式：
本发明的一种复合式熔喷脱模布采用三层结构，内外层为：90-97％聚丙烯(PP)或聚酯PBT+3-10％氟化微粉；中间层为：80-95％三元共聚聚丙烯(PP)和20％-5％弹性体。
其成形工艺如下：
(1)、首先用熔喷头进行喷出成型，熔喷头采用直线熔喷喷头型，熔喷板为滚筒状，将高弹性聚烯烃树脂通过熔喷头高速熔喷出短纤维丝，细流形成平行纤维束，通过滚筒收卷形成单向直线纤维布。
(2)、然后改造熔喷头为左右结构，并将单向直条纤维布直线悬挂放置在网帘上，网帘可以水平上下移动，通过熔喷头将内外层低表面张力树脂均匀的无规则的熔喷附着在单向直线纤维布两面，使其单向布上下两面都有短纤交织覆盖，形成三明治结构，并且由于短纤在面上的相互交错，形成细小微孔空隙，帮助成型时气体排出。
(3)、再通过若干道(3-5道)热轧工艺(热压温度为80-150℃)进行加固结合，在热压辊上分布横纵向不同的经纬纹路，在热压时整体布料表面形成布料纹路，再次增加三层布料的结合性，增加拉伸强度和断裂伸长率。
(4)、最后经过冷却定型，再经过切割收卷起来形成完整脱模布。
经过本工艺成型的脱模布具有如下性能：
Figure BDA0003785800880000031
综上所述，与现有技术相比，本发明的一种复合式熔喷脱模布材料上内外层使用氟化改性树脂，可以有效降低脱模布本身张力，帮助复材辅助成型时脱模使用，减少了原先涂覆、烘干工艺；材料上中间层使用弹性体改性树脂，通过弹性材料改性增加整体脱模布的韧性和加工延伸性；本工艺主要是完全颠覆原有脱模布工艺制造技术，为一体熔喷制造，减少了整经、穿纹、涂覆、烘干等工序，大大缩短了制程工序和制造时间，并且具有透气、自离型、高拉伸性等优点；本工艺采用熔喷方式，增加了脱模布的孔隙率，帮助成型时多余气体的排除。
根据本发明的实施例已对本发明进行了说明性而非限制性的描述，但应理解，本发明的保护范围并不局限于此，在不脱离由权利要求所限定的相关保护范围的情况下，本领域的技术人员可以做出变更和/或修改，在此基础之上的任何修改、等同替换等，都应涵盖在本发明的保护范围之内。

Claims (4)

1.一种复合式熔喷脱模布，其特征在于：采用三层结构，内外层为：90-97％聚丙烯(PP)或聚酯PBT+3-10％氟化微粉；中间层为：80-95％三元共聚聚丙烯(PP)和20％-5％弹性体。
2.根据权利要求1所述的一种复合式熔喷脱模布的制造工艺，其成形工艺如下：
(1)、首先用熔喷头进行喷出成型，将高弹性聚烯烃树脂通过熔喷头高速熔喷出短纤维丝，细流形成平行纤维束，通过滚筒收卷形成单向直线纤维布；
(2)、然后改造熔喷头为左右结构，并将单向直条纤维布直线悬挂放置在网帘上，网帘可以水平上下移动，通过熔喷头将内外层低表面张力树脂均匀的无规则的熔喷附着在单向直线纤维布两面，使其单向布上下两面都有短纤交织覆盖，形成三明治结构，并且由于短纤在面上的相互交错，形成细小微孔空隙，帮助成型时气体排出；
(3)、再通过若干道热轧工艺进行加固结合，在热压辊上分布横纵向不同的经纬纹路，在热压时整体布料表面形成布料纹路，再次增加三层布料的结合性，增加拉伸强度和断裂伸长率；
(4)、最后经过冷却定型，再经过切割收卷起来形成完整脱模布。
3.根据权利要求2所述的一种复合式熔喷脱模布的制造工艺，其特征在于：所述的熔喷头采用直线熔喷喷头型，熔喷板为滚筒状。
4.根据权利要求2所述的一种复合式熔喷脱模布的制造工艺，其特征在于：所述的热轧工艺为3-5道，热压温度为80-150℃。
CN202210941390.7A 2022-08-08 2022-08-08 一种复合式熔喷脱模布及制造工艺 Pending CN115262086A (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117047984A (zh) * 2023-10-08 2023-11-14 福建省华科模具科技股份有限公司 一种可自动复位的电池模具

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Publication number Priority date Publication date Assignee Title
EP0599396A1 (en) * 1992-11-17 1994-06-01 Beijing Challen Nonwoven Tech. Corp. A melt-blown composite feather and/or down wadding, its producing method and equipment
JP2002208782A (ja) * 2000-11-10 2002-07-26 Asahi Glass Co Ltd 多層プリント配線板用離型フィルム
JP2002266219A (ja) * 2001-03-05 2002-09-18 Daikin Ind Ltd テトラフルオロエチレン系不織布
JP6380727B1 (ja) * 2017-03-22 2018-08-29 住友ベークライト株式会社 離型フィルムおよびフレキシブルプリント回路基板の製造方法
WO2018173683A1 (ja) * 2017-03-22 2018-09-27 住友ベークライト株式会社 離型フィルムおよびフレキシブルプリント回路基板の製造方法
CN215209903U (zh) * 2021-05-08 2021-12-17 安丹达工业技术(上海)有限公司 生产多层熔喷布的装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0599396A1 (en) * 1992-11-17 1994-06-01 Beijing Challen Nonwoven Tech. Corp. A melt-blown composite feather and/or down wadding, its producing method and equipment
JP2002208782A (ja) * 2000-11-10 2002-07-26 Asahi Glass Co Ltd 多層プリント配線板用離型フィルム
JP2002266219A (ja) * 2001-03-05 2002-09-18 Daikin Ind Ltd テトラフルオロエチレン系不織布
JP6380727B1 (ja) * 2017-03-22 2018-08-29 住友ベークライト株式会社 離型フィルムおよびフレキシブルプリント回路基板の製造方法
WO2018173683A1 (ja) * 2017-03-22 2018-09-27 住友ベークライト株式会社 離型フィルムおよびフレキシブルプリント回路基板の製造方法
CN215209903U (zh) * 2021-05-08 2021-12-17 安丹达工业技术(上海)有限公司 生产多层熔喷布的装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117047984A (zh) * 2023-10-08 2023-11-14 福建省华科模具科技股份有限公司 一种可自动复位的电池模具
CN117047984B (zh) * 2023-10-08 2024-02-27 福建省华科模具科技股份有限公司 一种可自动复位的电池模具

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