CN112157927A - Lds工艺中热固性材料的成型工艺及其产品 - Google Patents

Lds工艺中热固性材料的成型工艺及其产品 Download PDF

Info

Publication number
CN112157927A
CN112157927A CN202010933419.8A CN202010933419A CN112157927A CN 112157927 A CN112157927 A CN 112157927A CN 202010933419 A CN202010933419 A CN 202010933419A CN 112157927 A CN112157927 A CN 112157927A
Authority
CN
China
Prior art keywords
steps
lds
thermosetting material
following
plate
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.)
Pending
Application number
CN202010933419.8A
Other languages
English (en)
Inventor
郎鸣华
韦佳成
杨国刚
刘成
鲍王飞
王升
赵清新
钱纯
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.)
Jiangsu Aosheng Composite Materials Hi Tech Co ltd
Original Assignee
Jiangsu Aosheng Composite Materials Hi Tech 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 Jiangsu Aosheng Composite Materials Hi Tech Co ltd filed Critical Jiangsu Aosheng Composite Materials Hi Tech Co ltd
Priority to CN202010933419.8A priority Critical patent/CN112157927A/zh
Publication of CN112157927A publication Critical patent/CN112157927A/zh
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2063/00—Use of EP, i.e. epoxy resins or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0809—Fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0872—Prepregs
    • B29K2105/0881—Prepregs unidirectional
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/0872—Prepregs
    • B29K2105/089—Prepregs fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns
    • B29K2105/10—Cords, strands or rovings, e.g. oriented cords, strands or rovings
    • B29K2105/101—Oriented
    • B29K2105/105—Oriented uni directionally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • B29L2007/002—Panels; Plates; Sheets

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Composite Materials (AREA)
  • Mechanical Engineering (AREA)
  • Chemically Coating (AREA)

Abstract

本发明涉及一种LDS工艺中热固性材料的成型工艺，包括：准备所需尺寸预浸料，所述的预浸料为浸渍热固性树脂的纤维或织物，将多张所述的预浸料进行铺层；对多张铺层完毕的预浸料进行模压固化成板材，对所述的片材的两面进行加工，对加工后所述的板材的表面分别进行金属镀层。本发明采用连续长纤维结合热固性树脂在高温高压下模压制板，再通过烘烤等工序加固结构，对其结构进行蚀刻，最后得到所需的成品形状。该方法能有效缩短成型时间，提高加工效率，提升产品一次成型率。

Description

LDS工艺中热固性材料的成型工艺及其产品
技术领域
本发明属于复合材料领域，具体涉及一种LDS工艺中热固性材料的成型工艺。
背景技术
LDS(Laser Direct Structuring)激光直接成型技术是一种专业镭射加工、射出与电镀制程的3D-MID(Three-dimensional moulded interconnect device)生产技术，其原理是将普通的塑胶元件/电路板赋予电气互连功能、支撑元器件功能和塑料壳体的支撑、防护等功能，以及由机械实体与导电图形结合而产生的屏蔽、天线等功能结合於一体，形成所谓3D-MID，适用於ICSubstrate、HDIPCB、LeadFrame局部细线路制作。
现有技术中，LDS工艺中通常采用热塑性塑料，热塑性塑料是指在一定的温度条件下, 塑料能软化或熔融成任意形状，冷却后形状不变,这种状态可多次反复而始终具有可塑性。相比热塑性塑料，还存在一种热固性塑料，热固性塑料是指在首次加热后可以软化流动，再次到一定温度后，产生化学反应交链固化而硬化，这种变化不可逆。
两者相比下，热固性塑料具有更出色的刚性和耐热性，可承受一定范围内的外力冲击，且在高温环境下也具有结构稳定性，在材料的强度方面强于热塑性塑料。但现有技术问题是，该类型工艺品无法回收再生，无法返工，有一定局限性。
发明内容
本发明的一个目的是提供一种LDS工艺中热固性材料的成型工艺。
为达到上述目的，本发明采用的技术方案是：
一种LDS工艺中热固性材料的成型工艺，包括：
准备所需尺寸预浸料，所述的预浸料为浸渍热固性树脂的连续长纤维或织物，将多张所述的预浸料进行铺层；对多张铺层完毕的预浸料进行模压固化成板材，对所述的片材的表面进行加工，对加工后所述的板材的表面分别进行金属镀层。
所述的热固性树脂采用环氧树脂。
所述的纤维或织物碳纤维或者玻璃纤维。
优选地，对多张所述的预浸料进行铺层时，相邻两张所述的预浸料的铺层方向为0°-90°夹角。对多张所述的预浸料进行铺层时，可根据力学性能要求，进行各种方式铺层设计，层间角度选择面广，可有多种包含但不限于此的角度搭配。
优选地，多张所述的预浸料的单向克重为50-150g/m2，树脂含量：25％—40％。进一步优选地，对多张所述的预浸料进行铺层时位于中间两层所述的预浸料的单向克重为50-100g/m2，其余所述的预浸料的单向克重为80-150g/m2。
所述的金属镀层采用铜和镍。
优选地，所述的板材的两面分别通过化学镀的方式进行金属镀层。
优选地，模压固化时：温度为145±10℃；压力为10-100kgf。
优选地，对所述的板材进行加工时包括通过蚀刻的方式进行成型、开孔、对其两侧进行开槽。
本发明的另一个目的是提供一种由LDS工艺中热固性材料的成型工艺制备的产品。
该产品可用于3C数码产品及其相关配件，如手机天线、手机壳、平板支架或者撑脚、音响等等。
由于上述技术方案运用，本发明与现有技术相比具有下列优点：
本发明采用连续长纤维结合热固性树脂在高温高压下模压制板，再通过烘烤等工序加固结构，对其结构进行蚀刻，最后得到所需的成品形状。该方法能能有效缩短成型时间，提高加工效率，提升产品一次成型率。
具体实施方式
下面将对本发明的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
一种LDS工艺中热固性材料的成型工艺，本实施例以碳纤维手机支架为例，包括：
选择预浸料，预浸料为浸渍热固性树脂的连续长纤维或织物，纤维采用碳纤维，树脂采用环氧树脂，环氧树脂中含有对化镀工艺相容性较好的组分，这样做的目的便于后期在化镀工艺中，镀层能够与复合材料集体表面富集，从而形成较为稳定的外表面镀层。碳纤维，通过牵引由小丝束集束成大丝束，再通过辊筒压延成布料，将环氧树脂用热辊筒挤压成胶膜，再通过辊筒涂覆在上述布料上，最后形成预浸料。
准备预浸料单向克重为150g/m2的预浸料9张(UD150)，单向克重为100g/m2的预浸料2张，裁切成尺寸为500*500mm。
将裁切好的预浸料(9片UD150和2片UD100)按以下方式铺层：0°/45°/90°/45°/90°(UD100)/45°(UD100)/90°/45°/90°/45°/0°，合计11层，中间两层为UD100，其余为UD150。
设定温度145±20℃；压力10-100kgf；延迟加压10-100s，待达到设定温度后，恒温半小时，将铺层好的预浸料放在模具内固化成板材，对完成固化的板材进行冷压，冷压时间1-5 分钟。
采用CNC精雕机对板材的两面进行加工，具有为对板材进行成型、开孔、对板材的两侧进行开槽，并进行外观处理，如去毛刺、清洗、刻字。
用LDS工艺对CNC后的产品进行精细化加工，对部分精密尺寸做到更好地控制，同时提高产品能更好地与后续的金属镀层结合。
加工后板材的两面分别通过化学镀的方式进行金属镀层，金属主要为铜、镍金属，化镀工艺采用现有技术，包括超声波清洗、预镀铜、沉厚铜、活化、镀镍、钝化、烘干，其中，水洗工艺穿插在各个工序之间，并最终完成成品。
对成品进行性能测试：
Figure RE-GDA0002799363760000031
Figure RE-GDA0002799363760000041
Figure RE-GDA0002799363760000051
上述实施例只为说明本发明的技术构思及特点，其目的在于让熟悉此项技术的人士能够了解本发明的内容并据以实施，并不能以此限制本发明的保护范围。凡根据本发明精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (10)

1.一种LDS工艺中热固性材料的成型工艺，其特征在于：包括：
准备所需尺寸预浸料，所述的预浸料为浸渍热固性树脂的连续长纤维或织物，将多张所述的预浸料进行铺层；对多张铺层完毕的预浸料进行模压固化成板材，对所述的片材的表面进行加工，对加工后所述的板材的表面分别进行金属镀层。
2.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：所述的热固性树脂采用环氧树脂。
3.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：所述的纤维或织物碳纤维或者玻璃纤维。
4.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：对多张所述的预浸料进行铺层时，相邻两张所述的预浸料的铺层方向为0°-90°夹角。
5.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：多张所述的预浸料的单向克重为50-150g/m2，树脂含量：25%—40%。
6.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：所述的金属镀层采用铜、镍。
7.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：所述的板材的两面分别通过化学镀的方式进行金属镀层。
8.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：模压固化时：温度为145±20℃；压力为10-100kgf。
9.根据权利要求1所述的LDS工艺中热固性材料的成型工艺，其特征在于：对所述的板材进行加工时包括通过蚀刻的方式进行成型、开孔、对其两侧进行开槽。
10.一种由权利要求1至9中任意一项权利要求所述的LDS工艺中热固性材料的成型工艺制备的产品。
CN202010933419.8A 2020-09-08 2020-09-08 Lds工艺中热固性材料的成型工艺及其产品 Pending CN112157927A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010933419.8A CN112157927A (zh) 2020-09-08 2020-09-08 Lds工艺中热固性材料的成型工艺及其产品

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010933419.8A CN112157927A (zh) 2020-09-08 2020-09-08 Lds工艺中热固性材料的成型工艺及其产品

Publications (1)

Publication Number Publication Date
CN112157927A true CN112157927A (zh) 2021-01-01

Family

ID=73858403

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010933419.8A Pending CN112157927A (zh) 2020-09-08 2020-09-08 Lds工艺中热固性材料的成型工艺及其产品

Country Status (1)

Country Link
CN (1) CN112157927A (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191234A (ja) * 2008-02-18 2009-08-27 Sumitomo Bakelite Co Ltd プリプレグ、及び熱硬化性樹脂積層板
CN104582278A (zh) * 2014-09-04 2015-04-29 陈鹏 一种电路板及其制备方法
CN108264726A (zh) * 2016-12-30 2018-07-10 比亚迪股份有限公司 一种环氧树脂复合材料和制品及其制备方法
CN109353031A (zh) * 2018-11-19 2019-02-19 苏州银禧新能源复合材料有限公司 电池箱盖的制备方法
EP3666818A1 (en) * 2017-08-10 2020-06-17 Toray Industries, Inc. Prepreg laminate, method for manufacturing fiber-reinforced plastic using prepreg laminate, and fiber-reinforced plastic

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009191234A (ja) * 2008-02-18 2009-08-27 Sumitomo Bakelite Co Ltd プリプレグ、及び熱硬化性樹脂積層板
CN104582278A (zh) * 2014-09-04 2015-04-29 陈鹏 一种电路板及其制备方法
CN108264726A (zh) * 2016-12-30 2018-07-10 比亚迪股份有限公司 一种环氧树脂复合材料和制品及其制备方法
EP3666818A1 (en) * 2017-08-10 2020-06-17 Toray Industries, Inc. Prepreg laminate, method for manufacturing fiber-reinforced plastic using prepreg laminate, and fiber-reinforced plastic
CN109353031A (zh) * 2018-11-19 2019-02-19 苏州银禧新能源复合材料有限公司 电池箱盖的制备方法

Similar Documents

Publication Publication Date Title
CN102285017B (zh) 碳纤维外壳的制造方法
CN104955278B (zh) 一种在注塑件表面上制造三维电路的方法
CN204414676U (zh) 一种复合板材及电子设备
CN108215413B (zh) 全表面具有编织纹理的可再塑型碳纤维板材及其制备方法
CN106183135A (zh) 一种碳纤维片材
CN105905867A (zh) 一种三维表面顺形或共形图案的制备方法
CN103029405A (zh) 多彩碳纤外壳的制作方法
CN106025521B (zh) 一种碳纤维复合材料天线及其制备方法
CN111497379A (zh) 一种覆铜板及其制备方法
CN205921077U (zh) 一种碳纤维复合材料天线
CN102886935B (zh) 一种复合材料、其制备方法以及具有该复合材料的电子设备
CN111619173A (zh) 一种覆铜板及其制备方法
CN102833968A (zh) 立体工件制作方法
CN113681935A (zh) 一种带纹理的透明3d玻纤板材的生产工艺及应用
CN112157927A (zh) Lds工艺中热固性材料的成型工艺及其产品
CN213108528U (zh) 一种壳体结构及电子设备
CN103625084B (zh) 一种复合外壳及其制备方法
CN103625041B (zh) 一种复合外壳及其制备方法
CN113022043A (zh) 一种汽车顶棚材料及其制备方法
CN214563570U (zh) 一种夹芯复合板
CN204927510U (zh) 一种感应线圈产品
CN202353923U (zh) 复合式覆盖膜
CN104582278B (zh) 一种电路板及其制备方法
JPS63117493A (ja) 回路を有する成形品の製造方法
CN113910738A (zh) 一种覆铜板加工工艺

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
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20210101