CN113043678A - 一种无膜无纬布及其制备方法 - Google Patents

一种无膜无纬布及其制备方法 Download PDF

Info

Publication number
CN113043678A
CN113043678A CN202110411201.0A CN202110411201A CN113043678A CN 113043678 A CN113043678 A CN 113043678A CN 202110411201 A CN202110411201 A CN 202110411201A CN 113043678 A CN113043678 A CN 113043678A
Authority
CN
China
Prior art keywords
fiber
woven fabric
layer
fabric
film
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.)
Granted
Application number
CN202110411201.0A
Other languages
English (en)
Other versions
CN113043678B (zh
Inventor
赵玉芬
齐长见
宋磊磊
郝露
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.)
Zhonghang Armoured Technology Co ltd
Original Assignee
Zhonghang Armoured Technology 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 Zhonghang Armoured Technology Co ltd filed Critical Zhonghang Armoured Technology Co ltd
Priority to CN202110411201.0A priority Critical patent/CN113043678B/zh
Publication of CN113043678A publication Critical patent/CN113043678A/zh
Application granted granted Critical
Publication of CN113043678B publication Critical patent/CN113043678B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/022—Non-woven fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
    • B32B37/1284—Application of adhesive
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/16—Drying; Softening; Cleaning
    • B32B38/164—Drying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
    • B32B5/12—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by the relative arrangement of fibres or filaments of different layers, e.g. the fibres or filaments being parallel or perpendicular to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
    • B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
    • B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2250/00—Layers arrangement
    • B32B2250/20—All layers being fibrous or filamentary
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0253—Polyolefin fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/02—Synthetic macromolecular fibres
    • B32B2262/0261—Polyamide fibres
    • B32B2262/0269—Aromatic polyamide fibres
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/106—Carbon fibres, e.g. graphite fibres

Abstract

本发明创造提供了一种无膜无纬布及其制备方法，所述无膜无纬布包括层叠的单向纤维层、无纺织物层，所述无纺织物层和单向纤维层中均浸有树脂基体。本发明创造所述的采用胶液转移法将无纺织物上胶液转移至单向纤维层上，可以有效控制无纬布纤维展纱的均匀性，单向纤维层间接浸胶避免了完全浸胶时产生的纤维束展开后回缩现象。

Description

一种无膜无纬布及其制备方法
技术领域
本发明创造属于无纬布制备领域，尤其是涉及一种无膜无纬布及其制备方法。
背景技术
现有技术中无纬布的制备是采用纤维层直接浸渍胶液，该方法是纤维层经展纱后直接进入胶槽，然后经完全浸渍后由挤压滚挤压出多余浆液，再与胶膜复合，经烘干固化后形成无纬布制品。
纤维层直接浸胶工艺存在如下缺陷：由于液体的表面张力会造成纤维束展纱后产生一定的回缩或纤维束的整体黏连，如纤维张力控制不当，就会影响纤维束的整体展开效果，布面均匀性难以控制；此外，采用胶膜支撑定型，一是增大了无纬布制品的树脂含量，二是在后续复合材料制品中只能起层间粘结的作用，对复合材料的力学性能提升无显著影响。
发明内容
有鉴于此，本发明创造旨在克服现有技术中的缺陷，提出一种无膜无纬布。
为达到上述目的，本发明创造的技术方案是这样实现的：
一种无膜无纬布，包括层叠的单向纤维层、无纺织物层，所述无纺织物层和单向纤维层中均浸有树脂基体。
优选的，所述无纺织物层的骨架纤维的长度为5mm-200mm，纤维直径小于30μm。
优选的，所述无纺织物层的面密度为5-50g/m2。
优选的，所述单向纤维层的材质为增强纤维，所述增强纤维为高强高模聚乙烯纤维、芳纶纤维、碳纤维、玻璃纤维中的任意一种或几种混杂。
优选的，所述无纺织物层的骨架纤维为聚乙烯纤维、聚丙烯纤维、聚酯纤维、聚酰胺纤维、聚氨酯纤维、芳纶纤维、碳纤维、玻璃纤维、碳化硅纤维、碳化硼纤维、氧化铝纤维中的任意一种或几种的混杂。
优选的，所述树脂基体为水性树脂，更优选的，所述树脂基体为聚氨酯、环氧树脂、聚乙烯树脂、聚酯中任意一种或几种组合。
本发明还提供一种上述无膜无纬布的制备方法，包括如下步骤：
1)将增强纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)将无纺布经胶槽浸胶后，与单向纤维层复合浸轧，经挤压辊挤压，无纺布中胶液转移浸入单向纤维层中，多余胶液经挤压回流至胶槽中；
3)单向纤维层与无纺布层复合后，经烘干定型制备得到无膜无纬布制品。
本发明还提供一种复合材料，所述复合材料由若干层上述无膜无纬布铺层后经模压工艺制备而成。
本发明还提供一种防弹制品，所述防弹制品采用上述复合材料制备而得，所述防弹制品具有较高的防弹性能。
在本发明中的无纺织物层为单向纤维层的支撑层、保护层、粘接层和增强层，其位于单向纤维层上层、下层或两层纤维层的中间层；在无纬布使用时除去，起到保护单向纤维层的作用；在无纬布制备复合材料制品时也起到层间粘接的作用；还可提高层合复合材料的层间性能。
相对于现有技术，本发明创造具有以下优势：
(1)本发明采用胶液转移法将无纺织物上胶液转移至单向纤维层上，可以有效控制无纬布纤维展纱的均匀性，单向纤维层间接浸胶避免了完全浸胶时产生的纤维束展开后回缩现象；
(2)本发明采用无纺织物作为带液及支撑层，由于无纺织物具有高且均匀的孔隙率，充分浸胶后带液均匀，经与无纬布纤维层复合挤压，胶液可均匀浸渗至纤维层中，可以保证无纬布的含胶量控制；
(3)本发明采用无纺织物作为无纬布的支撑层，不但可以对无纬布起到定型保护的作用，还可以在复合制品起到力学增强和引入功能特性的作用；无纺织物由短纤维组成，其在带液转移后与无纬布纤维层复合，在胶液浸入纤维层的同时，短纤维会部分插入无纬布纤维层，在多层无纬布复合成型时，相较于普通胶膜，无纺织物中的短纤维与上下无纬布形成三维连接，除在二维平面内起粘结作用，在三维厚度方向还可以起到层间强度增强的作用。
附图说明
图1为本发明创造实施例所述的无膜无纬布的结构示意图。
附图标记说明：
1、单向纤维层；2、无纺织物层。
具体实施方式
除有定义外，以下实施例中所用的技术术语具有与本发明创造所属领域技术人员普遍理解的相同含义。以下实施例中所用的试验试剂，如无特殊说明，均为常规生化试剂；所述实验方法，如无特殊说明，均为常规方法。
下面结合实施例来详细说明本发明创造。
实施例1
1)将超高分子量聚乙烯纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)将面密度为20g/m2的碳纤维无纺布经胶槽浸环氧树脂胶后，与超高分子量聚乙烯单向纤维层复合浸轧，经挤压辊挤压，无纺布中胶液转移浸入单向纤维层中，多余胶液经挤压回流至胶槽中；
3)超高分子量聚乙烯纤维层与碳纤维无纺布层复合后，经烘干定型制备得到面密度为75g/m2、总含胶量为10％的超高分子量聚乙烯单向无纬布制品；
4)将步骤3)制得超高分子量聚乙烯单向无纬布裁剪，取70层0/90度正交铺层后，经模压成型工艺制得复合材料板材，经检测其重量为0.84kg。
实施例2
1)将超高分子量聚乙烯纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)将面密度为20g/m2的芳纶纤维无纺布经胶槽浸聚氨酯胶后，与超高分子量聚乙烯单向纤维层复合浸轧，经挤压辊挤压，无纺布中胶液转移浸入单向纤维层中，多余胶液经挤压回流至胶槽中；
3)超高分子量聚乙烯纤维层与芳纶纤维无纺布层复合后，经烘干定型制备得到面密度为75g/m2、总含胶量为10％的超高分子量聚乙烯单向无纬布制品；
4)将步骤3)制得超高分子量聚乙烯单向无纬布裁剪，取70层超高分子量聚乙烯无纬布0/90度正交铺层后，经模压成型工艺制得复合材料板材，经检测其重量为0.84kg。
实施例3
1)将超高分子量聚乙烯纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)将面密度为20g/m2的聚乙烯纤维无纺布经胶槽浸聚乙烯胶后，与超高分子量聚乙烯单向纤维层复合浸轧，经挤压辊挤压，无纺布中胶液转移浸入单向纤维层中，多余胶液经挤压回流至胶槽中；
3)超高分子量聚乙烯纤维层与聚乙烯纤维无纺布层复合后，经烘干定型制备得到面密度为75g/m2、总含胶量为10％的超高分子量聚乙烯单向无纬布制品；
4)将步骤3)制得超高分子量聚乙烯单向无纬布裁剪，取70层0/90度正交铺层后，经模压成型工艺制得复合材料板材，经检测其重量为0.84kg。
对比例1
1)将超高分子量聚乙烯纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)步骤1)单向纤维层经胶槽浸胶后，经挤压辊挤压，纤维层中多余胶液经挤压回流至胶槽中；
3)浸胶后超高分子量聚乙烯纤维层含胶量为10％，然后与面密度10g/m2的聚乙烯胶膜复合，经烘干定型制备得到面密度为75g/m2的超高分子量聚乙烯单向无纬布制品；
4)将步骤3)制得超高分子量聚乙烯无纬布裁剪，取70层0/90度正交铺层后，经模压成型工艺制得复合材料板材，经检测其重量为0.84kg。
将实施例1-3和对比例1制得的复合材料板材进行防弹试验，参考GA/T 950-2019的测试方法进行V50抗弹测试，测试结果见表1。
表1实施例1-3以及对比例1的测试数据
Figure BDA0003024125230000061
在相同测试条件下，测试实施例1-3和对比例1提供的复合材料板材防51式7.62mm手枪铅芯弹的V50值，由表1的测试结果可知，实施例1-3的V50值显著高于对比例1；由此说明，采用本发明制备的无纬布材料具有很好的防弹效果。
以上所述仅为本发明创造的较佳实施例而已，并不用以限制本发明创造，凡在本发明创造的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明创造的保护范围之内。

Claims (10)

1.一种无膜无纬布，其特征在于：包括层叠的单向纤维层、无纺织物层，所述无纺织物层和单向纤维层中均浸有树脂基体。
2.根据权利要求1所述的无膜无纬布，其特征在于：所述无纺织物层的骨架纤维的长度为5mm-200mm，纤维直径小于30μm。
3.根据权利要求1所述的无膜无纬布，其特征在于：所述无纺织物层的面密度为5-50g/m2。
4.根据权利要求1所述的无膜无纬布，其特征在于：所述单向纤维层的材质为增强纤维，所述增强纤维为高强高模聚乙烯纤维、芳纶纤维、碳纤维、玻璃纤维中的任意一种或几种混杂。
5.根据权利要求1所述的无膜无纬布，其特征在于：所述无纺织物层的骨架纤维为聚乙烯纤维、聚丙烯纤维、聚酯纤维、聚酰胺纤维、聚氨酯纤维、芳纶纤维、碳纤维、玻璃纤维、碳化硅纤维、碳化硼纤维、氧化铝纤维中的任意一种或几种的混杂。
6.根据权利要求1所述的无膜无纬布，其特征在于：所述树脂基体为水性树脂。
7.根据权利要求1所述的无膜无纬布，其特征在于：所述树脂体系为聚氨酯、环氧树脂、聚乙烯树脂、聚酯中任意一种或几种组合。
8.一种权利要求1-7任一所述的无膜无纬布的制备方法，其特征在于：包括如下步骤：
1)将增强纤维由挂纱架退绕，经集束板集束，分丝板定位分纱，展纱辊展纱后形成薄层单向纤维层；
2)将无纺布经胶槽浸胶后，与单向纤维层复合浸轧，经挤压辊挤压，无纺布中胶液转移浸入单向纤维层中，多余胶液经挤压回流至胶槽中；
3)单向纤维层与无纺布层复合后，经烘干定型制备得到无膜无纬布制品。
9.一种复合材料，其特征在于：所述复合材料由若干层权利要求1-7任一所述的无膜无纬布铺层后经模压工艺制备而成。
10.一种防弹制品，其特征在于：所述防弹制品采用权利要求9所述的复合材料制备而得，所述防弹制品具有较高的防弹性能。
CN202110411201.0A 2021-04-16 2021-04-16 一种无膜无纬布及其制备方法 Active CN113043678B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110411201.0A CN113043678B (zh) 2021-04-16 2021-04-16 一种无膜无纬布及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110411201.0A CN113043678B (zh) 2021-04-16 2021-04-16 一种无膜无纬布及其制备方法

Publications (2)

Publication Number Publication Date
CN113043678A true CN113043678A (zh) 2021-06-29
CN113043678B CN113043678B (zh) 2022-11-11

Family

ID=76520724

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110411201.0A Active CN113043678B (zh) 2021-04-16 2021-04-16 一种无膜无纬布及其制备方法

Country Status (1)

Country Link
CN (1) CN113043678B (zh)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120009128A (ko) * 2010-07-22 2012-02-01 한국과학기술원 복합재료용 직물 보강재 및 이를 갖는 섬유강화 복합재료 프리프레그
CN108274858A (zh) * 2018-03-27 2018-07-13 山东中恒景新碳纤维科技发展有限公司 一种多层功能预浸织物及其制备方法和应用
CN108950878A (zh) * 2018-07-27 2018-12-07 滁州天鼎丰非织造布有限公司 一种以玻璃纤维为加强筋的聚酯长丝油毡胎基及其制备方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20120009128A (ko) * 2010-07-22 2012-02-01 한국과학기술원 복합재료용 직물 보강재 및 이를 갖는 섬유강화 복합재료 프리프레그
CN108274858A (zh) * 2018-03-27 2018-07-13 山东中恒景新碳纤维科技发展有限公司 一种多层功能预浸织物及其制备方法和应用
CN108950878A (zh) * 2018-07-27 2018-12-07 滁州天鼎丰非织造布有限公司 一种以玻璃纤维为加强筋的聚酯长丝油毡胎基及其制备方法

Also Published As

Publication number Publication date
CN113043678B (zh) 2022-11-11

Similar Documents

Publication Publication Date Title
US9770844B2 (en) Fibre reinforced composites
AU2013212521B2 (en) Improvements in or relating to laminates
EP2440390B1 (en) Method of delivering a thermoplastic and/or crosslinking resin to a composite laminate structure
US20140322504A1 (en) Carbon fiber base, prepreg and carbon-fiber-reinforced composite material
US9868266B2 (en) Prepreg materials
CN106795665A (zh) 用于复合增强物的混合的织造纺织品
JP7087337B2 (ja) 強化繊維基材、強化繊維積層体および繊維強化樹脂
AU2021228414A1 (en) Stitched reinforcing fiber base material, preform material, fiber reinforced composite material, and manufacturing methods for same
US20230124757A1 (en) Stitched fiber-reinforced substrate material, preform material, fiber-reinforced composite material, and production method for same
CN113043678B (zh) 一种无膜无纬布及其制备方法
TW202019707A (zh) 強化纖維帶材料及其製造方法、使用強化纖維帶材料之強化纖維積層體及纖維強化樹脂成形體
JP7467840B2 (ja) 強化繊維基材、強化繊維積層体および繊維強化樹脂
GB2508078A (en) Non-woven moulding reinforcement material
US20230349083A1 (en) Stitched fiber-reinforced substrate material, preform material, fiber reinforced composite material, and manufacturing method for same
JPWO2020203925A1 (ja) 開繊炭素繊維束の製造方法および繊維強化複合材料
JP2006138031A (ja) 強化繊維基材、プリフォームおよびそれらの製造方法
JP7290107B2 (ja) ファイバープレイスメント用ドライテープ材料およびその製造方法、ならびにそれを用いた強化繊維積層体および繊維強化樹脂成形体
CN216466592U (zh) 一种大克重产品层铺用微含浸预浸料
JP2018066000A (ja) 強化繊維基材および繊維強化樹脂
KR20220102639A (ko) 몰딩 재료
JP2010031088A (ja) 部分含浸トウプリプレグ及びその製造装置
EP3067200A1 (en) Prepregs for mouldings of reduced void content
JP2022068616A (ja) 樹脂注入成形用強化繊維基材、樹脂注入成型用強化繊維積層体および繊維強化樹脂
CN116802055A (zh) 树脂注射成型用增强纤维基材及其制造方法、树脂注射成型用增强纤维层叠体以及纤维增强树脂
JP2005272526A (ja) 複合材料および複合材料の製造方法

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