[go: up one dir, main page]

CN114953621B - 一种垂直丝状排列的薄膜型导热材料及其制备方法 - Google Patents

一种垂直丝状排列的薄膜型导热材料及其制备方法 Download PDF

Info

Publication number
CN114953621B
CN114953621B CN202210584976.2A CN202210584976A CN114953621B CN 114953621 B CN114953621 B CN 114953621B CN 202210584976 A CN202210584976 A CN 202210584976A CN 114953621 B CN114953621 B CN 114953621B
Authority
CN
China
Prior art keywords
film
thin film
hollowed
cutting
stacked
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
CN202210584976.2A
Other languages
English (en)
Other versions
CN114953621A (zh
Inventor
楚盛
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.)
Guangdong Guangti Leading New Materials Co ltd
Original Assignee
Guangdong Guangti Leading New Materials 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 Guangdong Guangti Leading New Materials Co ltd filed Critical Guangdong Guangti Leading New Materials Co ltd
Priority to CN202210584976.2A priority Critical patent/CN114953621B/zh
Publication of CN114953621A publication Critical patent/CN114953621A/zh
Application granted granted Critical
Publication of CN114953621B publication Critical patent/CN114953621B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • 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
    • B32B38/0004—Cutting, tearing or severing, e.g. bursting; Cutter details
    • 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
    • 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
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/04—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising such particular substance as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/302—Conductive

Landscapes

  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Laminated Bodies (AREA)
  • Laser Beam Processing (AREA)

Abstract

本发明公开了一种垂直丝状排列的薄膜型导热材料及其制备方法，该方法包括以下步骤：步骤S1：使用激光切割，将第一片薄膜材料切成有条状图形的薄膜镂空材料；步骤S2：在薄膜镂空材料上喷涂粘接材料，将第二片切好的薄膜镂空材料对齐叠上第一片薄膜镂空材料，进行薄膜材料激光切割‑喷涂粘接材料‑对齐堆叠重复操作，直至堆叠至所需高度，固化，得堆叠薄膜镂空材料；步骤S3：使用多线切割机，纵向切割薄膜堆叠薄膜镂空材料，切割后即得。

Description

一种垂直丝状排列的薄膜型导热材料及其制备方法
技术领域
本发明涉及导热材料技术领域，尤其涉及一种垂直丝状排列的薄膜型导热材料及其制备方法。
背景技术
现阶段使用很多二维的薄膜型材料进行散热传热的产品屡见不鲜，这些薄膜型材料的水平方向的导热率一般较高，在热量传导过程中，水平方向能够很快将热量传输出去，但是垂直方向会阻碍热量的传输，使得热量传输存在一定阻碍。但实际上垂直方向上的导热性能也非常重要，它可以使得芯片上的热量能够在垂直的方向上迅速传导到散热部件或机壳等部位，防止出现热集中现象。
另外，在一些构件的制备中也要求这些薄膜型材料要以垂直的丝状排列在其中。因此对于薄膜型导热材料来说，如何制备具有垂直丝状排列的结构并同时具有较好的导热性尤为关键。
发明内容
为了解决上述问题，本发明提供了一种垂直丝状排列的薄膜型导热材料，如图4所示，由至少两层的具备条状图形的薄膜镂空材料1叠加得到；所述薄膜镂空材料1间设有粘接材料2。
在一些实施方式中，所述条状图形的长宽比为(70～80)：1；优选的，所述条状图形的长宽比为75：1。
在一些实施方式中，所述条状图形间隔距离为0.2～0.4mm；优选的，所述条状图形间隔距离为0.3mm。
申请人在实验过程中发现制备得到的垂直丝状排列的薄膜型导热材料可较大程度降低其在垂直方向上的热阻，尤其在将薄膜材料切成有条状图形的薄膜镂空材料，限定其中条状图形的长宽比为(70～80)：1，条状图形间隔距离为0.2～0.4mm时，制备得到的薄膜型导热材料导热在水平方向和垂直方向的热阻都较小，可降至0.2cm2K/W，推测原因可能是此时可形成较高的导热取向性。
在一些实施方式中，所述粘接材料的厚度为30～50um；优选的，所述粘接材料的厚度为35～45um；更优选的，所述粘接材料的厚度为40um。
在一些实施方式中，所述粘接材料选自聚四氟乙烯橡胶、硅橡胶、丁腈橡胶中的一种或几种组合。
在一些优选的实施方式中，所述粘接材料为硅橡胶。
在一些更优选的实施方式中，所述硅橡胶为铂催化硅橡胶，选自00-10、00-20、00-30、00-35、00-50、5、GEL中的一种或几种组合。
在一些优选的实施方式中，所述硅橡胶为00-20，购买自Smooth-On,Inc.。
申请人发现选用00-20的粘结材料不仅有利于实现薄膜镂空材料的叠加，而且不会影响到材料的导热性。
本发明的第二方面提供一种垂直丝状排列的薄膜型导热材料的制备方法，包括以下步骤：
步骤S1：使用激光切割，将第一片薄膜材料切成有条状图形的薄膜镂空材料；
步骤S2：在薄膜镂空材料上喷涂粘接材料，将第二片切好的薄膜镂空材料对齐叠上第一片薄膜镂空材料，进行薄膜材料激光切割-喷涂粘接材料-对齐堆叠重复操作，直至堆叠至所需高度，固化，得堆叠薄膜镂空材料；
步骤S3：使用多线切割机，纵向切割薄膜堆叠薄膜镂空材料，切割后即得。
在一些优选的实施方式中，所述一种垂直丝状排列的薄膜型导热材料的制备方法，包括以下步骤：
步骤S1：使用激光切割，将第一片薄膜材料切成有条状图形的薄膜镂空材料，如图2所示；
步骤S2：在薄膜镂空材料上喷涂粘接材料，将第二片切好的薄膜镂空材料对齐叠上第一片薄膜镂空材料，进行薄膜材料激光切割-喷涂粘接材料-对齐堆叠重复操作，直至堆叠至所需高度，室温放置8～10h，固化，得堆叠薄膜镂空材料；
步骤S3：使用金刚线多线切割机，纵向切割薄膜堆叠薄膜镂空材料，通过调节金刚线间距来控制切割堆叠薄膜镂空材料的厚度，切割后即得，如图3、4所示。
在一些实施方式中，所述步骤S1中的薄膜材料为薄膜型导热材料，包括但不限于天然石墨片、超级导电石墨片、复合石墨片、碳纤维等，如图1所示。
在一些优选的实施方式中，所述步骤S1中的薄膜材料为石墨片。
所述石墨片可通过市售购买得到，包括但不限于购买自佛山信士智能科技有限公司的LD-RG017。
在一些实施方式中，所述步骤S3中堆叠薄膜镂空材料的高度为3～5cm；优选的，所述步骤S3中堆叠薄膜镂空材料的厚度为4cm。
在一些实施方式中，所述步骤S3中多线切割机纵向切割的距离为0.35～2mm；优选的，所述步骤S3中多线切割机纵向切割的距离为1.2mm。有益效果：本发明提供的一种垂直丝状排列的薄膜型导热材料及其制备方法，由至少两层的具备条状图形的薄膜镂空材料叠加得到，通过限定其中条状图形的长宽比以及条状图形间隔距离，制备得到的薄膜型导热材料导热在水平方向和垂直方向的热阻都较小，可降至0.2cm2K/W，能够以垂直的丝状排列在新的构件里，导热性极佳。
附图说明
图1为薄膜材料的结构示意图；
图2为具备条状图形的薄膜镂空材料的结构示意图；
图3为纵向切割薄膜堆叠薄膜镂空材料的结构示意图；
图4为垂直丝状排列的薄膜型导热材料的结构示意图；
附图标记：1薄膜镂空材料，2粘结材料，3纵向切割方向。
具体实施方式
实施例1
本实施例1提供了一种垂直丝状排列的薄膜型导热材料，由至少两层的具备条状图形的薄膜镂空材料叠加得到；所述薄膜镂空材料间设有粘接材料。
所述条状图形的长宽比为75：1。
所述条状图形间隔距离为0.3mm。
所述粘接材料的厚度为40um。
所述粘接材料为00-20，购买自Smooth-On,Inc.。
所述一种垂直丝状排列的薄膜型导热材料的制备方法，包括以下步骤：
步骤S1：使用激光切割，将第一片薄膜材料切成有条状图形的薄膜镂空材料；
步骤S2：在薄膜镂空材料上喷涂粘接材料，将第二片切好的薄膜镂空材料对齐叠上第一片薄膜镂空材料，进行薄膜材料激光切割-喷涂粘接材料-对齐堆叠重复操作，直至堆叠至所需高度，室温放置9h，固化，得堆叠薄膜镂空材料；
步骤S3：使用金刚线多线切割机，纵向切割薄膜堆叠薄膜镂空材料，通过调节金刚线间距来控制切割堆叠薄膜镂空材料的厚度，切割后即得。
所述步骤S1中的薄膜材料为石墨片，购买自佛山信士智能科技有限公司的LD-RG017。
所述步骤S3中堆叠薄膜镂空材料的厚度为4cm。
所述步骤S3中多线切割机纵向切割的距离为1.2mm。
实施例2
本实施例2提供了一种垂直丝状排列的薄膜型导热材料的制备方法，其具体实施方式同实施例1，不同之处在于，所述条状图形的长宽比为70：1；所述条状图形间隔距离为0.2mm；所述粘接材料的厚度为30um；所述步骤S3中堆叠薄膜镂空材料的厚度为3cm；所述步骤S3中多线切割机纵向切割的距离为0.35mm。
实施例3
本实施例3提供了一种垂直丝状排列的薄膜型导热材料的制备方法，其具体实施方式同实施例1，不同之处在于，所述条状图形的长宽比为80：1；所述条状图形间隔距离为0.4mm；所述粘接材料的厚度为50um；所述步骤S3中堆叠薄膜镂空材料的厚度为5cm；所述步骤S3中多线切割机纵向切割的距离为2mm。
实施例4
本实施例4提供了一种垂直丝状排列的薄膜型导热材料的制备方法，其具体实施方式同实施例1，不同之处在于，所述条状图形的长宽比为100：1。
实施例5
本实施例5提供了一种垂直丝状排列的薄膜型导热材料的制备方法，其具体实施方式同实施例1，不同之处在于，所述条状图形间隔距离为0.1mm。
实施例6
本实施例6提供了一种垂直丝状排列的薄膜型导热材料的制备方法，其具体实施方式同实施例1，不同之处在于，所述条状图形间隔距离为0.8mm。
性能测试
纵向热阻测试
测试方法为稳态热流法，参考测试热导性固体电绝缘材料(薄)传热性能标准(ASTMD5470-2006)，使用湘潭市仪器仪表有限公司制造的DRL-Ⅲ导热系数测试仪测得，单位：cm2K/W。
表1

Claims (1)

1.一种垂直丝状排列的薄膜型导热材料，其特征在于，由至少两层的具备条状图形的薄膜镂空材料叠加得到；所述薄膜镂空材料间设有粘接材料；
所述条状图形的长宽比为70：1；
所述条状图形间隔距离为0.2mm；
所述粘接材料的厚度为30um；
所述粘接材料为Ecoflex®00-20；
所述一种垂直丝状排列的薄膜型导热材料的制备方法，包括以下步骤：
步骤S1：使用激光切割，将第一片薄膜材料切成有条状图形的薄膜镂空材料；
步骤S2：在薄膜镂空材料上喷涂粘接材料，将第二片切好的薄膜镂空材料对齐叠上第一片薄膜镂空材料，进行薄膜材料激光切割-喷涂粘接材料-对齐堆叠重复操作，直至堆叠至所需高度，室温放置9h，固化，得堆叠薄膜镂空材料；
步骤S3：使用金刚线多线切割机，纵向切割薄膜堆叠薄膜镂空材料，通过调节金刚线间距来控制切割堆叠薄膜镂空材料的厚度，切割后即得；
所述步骤S1中的薄膜材料为石墨片；
所述步骤S3中堆叠薄膜镂空材料的高度为3cm；
所述步骤S3中多线切割机纵向切割的距离为0.35mm。
CN202210584976.2A 2022-05-26 2022-05-26 一种垂直丝状排列的薄膜型导热材料及其制备方法 Active CN114953621B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210584976.2A CN114953621B (zh) 2022-05-26 2022-05-26 一种垂直丝状排列的薄膜型导热材料及其制备方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210584976.2A CN114953621B (zh) 2022-05-26 2022-05-26 一种垂直丝状排列的薄膜型导热材料及其制备方法

Publications (2)

Publication Number Publication Date
CN114953621A CN114953621A (zh) 2022-08-30
CN114953621B true CN114953621B (zh) 2025-03-25

Family

ID=82955804

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210584976.2A Active CN114953621B (zh) 2022-05-26 2022-05-26 一种垂直丝状排列的薄膜型导热材料及其制备方法

Country Status (1)

Country Link
CN (1) CN114953621B (zh)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497523A (zh) * 2016-09-27 2017-03-15 清华大学深圳研究生院 一种石墨复合材料及其制备方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2794810Y (zh) * 2005-06-03 2006-07-12 耿世达 纵向断热横向均温材料
JP2015140703A (ja) * 2014-01-28 2015-08-03 マツダ株式会社 断熱層構造及びその製造方法
GB2572608A (en) * 2018-04-03 2019-10-09 Ilika Tech Ltd Laser processing method for thin film structures
CN114415277B (zh) * 2021-11-26 2022-10-25 西安交通大学 在金刚石薄膜上制备软x射线-极紫外透射光栅的方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106497523A (zh) * 2016-09-27 2017-03-15 清华大学深圳研究生院 一种石墨复合材料及其制备方法

Also Published As

Publication number Publication date
CN114953621A (zh) 2022-08-30

Similar Documents

Publication Publication Date Title
CN103764733B (zh) 导热性片材的制备方法
JP4713301B2 (ja) 熱伝導材料及びその製造方法
US8029900B2 (en) Thermal interface material and method for manufacturing same
US7569425B2 (en) Method for manufacturing thermal interface material with carbon nanotubes
AU597946B2 (en) Electrical connector for surface mounting
US20060231970A1 (en) Method for manufacturing a thermal interface material
EP3536665A1 (en) Method for continuously preparing graphene heat-conducting films
CN106847767A (zh) 一种石墨铜箔复合散热片
KR20200069735A (ko) 냉각 및 가열이 가능한 신축성 유연 웨어러블 열전소자
CN105814683B (zh) 片状结构体、使用了该片状结构体的电子设备、片状结构体的制造方法以及电子设备的制造方法
CN112638123A (zh) 一种异质均温器件
CN114953621B (zh) 一种垂直丝状排列的薄膜型导热材料及其制备方法
CN109971179B (zh) 导热复合材料
JP3288029B2 (ja) 成形体、並びに、熱伝導材及びその製造方法
KR102075360B1 (ko) 열확산 시트 및 그 제조방법
CN115785674A (zh) 条带和/或纤维增强超高热导率热界面材料及其制备方法
KR102254883B1 (ko) 면상 발열체
CN105882055B (zh) 冷压石墨导热元件及其制作方法
KR20170098564A (ko) 열전 소자
US8808857B1 (en) Carbon nanotube array interface material and methods
CN214316021U (zh) 一种异质均温器件
KR102575128B1 (ko) 열확산 코팅막을 도포한 탄소발열체의 제조와 유연성 및 온도 불균일성 개선방법
KR20140075254A (ko) 열확산 시트 및 그 제조방법
US10292311B2 (en) Heat radiating sheet
KR20140075255A (ko) 열확산 시트 및 그 제조방법

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
CB02 Change of applicant information

Country or region after: China

Address after: 523000 room 1005, building 1, 310 Songbai Road, Liaobu Town, Dongguan City, Guangdong Province

Applicant after: Guangdong Guangti Leading New Materials Co.,Ltd.

Address before: 523000 room 1005, building 1, 310 Songbai Road, Liaobu Town, Dongguan City, Guangdong Province

Applicant before: Dongguan guangti Technology Co.,Ltd.

Country or region before: China

CB02 Change of applicant information
GR01 Patent grant
GR01 Patent grant