Resin composite film including cellulose microfiber layer

A technology of resin composite and microfiber, which is applied in the direction of polymer diaphragm, synthetic resin layered products, diaphragm structure, etc., which can solve the problems of difficulty in application and small fiber diameter control

Active Publication Date: 2018-11-23
ASAHI KASEI KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] These technologies are suitable for improving the heat resistance and strength of resins. For example, in order to realize the miniaturization and thinning of electronic materials accompanied by the tre...

Method used

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  • Resin composite film including cellulose microfiber layer
  • Resin composite film including cellulose microfiber layer
  • Resin composite film including cellulose microfiber layer

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0248] As a method for preparing a slurry for papermaking or coating, there are, for example, the following methods: (1) Mixing and dispersing a pre-prepared compound containing additives into a cellulose fine fiber slurry to prepare a papermaking slurry ; (2) While stirring the cellulose microfiber slurry, add various additives one by one. It should be noted that, in the case of adding a plurality of additives, in a system in which the additives aggregate each other (for example, a system in which a cationic polymer and an anionic polymer form an ionic complex), depending on the order of addition, there are Possibility of changes in dispersion state and zeta potential of papermaking slurry. However, the order and amount of addition are not particularly limited, and it is preferable to add by a method that can obtain the desired dispersion state and sheet properties of the papermaking slurry.

[0249] Examples of the stirring device for uniformly mixing and dispersing the abo...

Embodiment

[0395] Hereinafter, the present invention will be described in more detail using examples and comparative examples, but the present invention is not limited by these examples.

Embodiment approach I

[0397] "Measurement and Evaluation Methods of Physical Properties of Cellulose Fiber Sheets"

[0398]

[0399] In the fiber sheet, observation by a scanning electron microscope (SEM) was performed at 10 random positions from the surface of the cellulose fine fiber at a magnification corresponding to 1000 to 100000 times depending on the fiber diameter of the fine fiber. For the obtained SEM image, lines were drawn horizontally and vertically with respect to the screen, and the fiber diameters of fibers intersecting the lines were actually measured from the enlarged image, and the number of intersecting fibers and the fiber diameter of each fiber were counted. Thus, for each image, the number-average fiber diameter was calculated using the measurement results of the vertical and horizontal 2 series. Furthermore, the number-average fiber diameter was similarly calculated for the other two extracted SEM images, and the results for a total of 10 images were averaged.

[0400] ...

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PUM

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Abstract

A resin composite film comprising a cellulose microfiber sheet and a resin, the resin composite film satisfying the following: (1) in a modulus mapping obtained by an examination of a cross-section with an AFM along the thickness direction, the fibers constituting the cellulose microfiber sheet have an average fiber diameter and a maximum fiber diameter, both calculated through image analysis, of0.01-2.0 [mu]m and 15 [mu]m or smaller, respectively; and (2) at least one surface of the resin composite film has an overcoat resin layer having an average thickness, determined from the modulus mapping, of 0.3-100 [mu]m.

Description

technical field [0001] The present invention relates to a resin composite film comprising a cellulose microfiber sheet and a resin, a resin laminated film using the same, a resin composite film laminate, a multilayer printed circuit board, a semiconductor package substrate, and a communication terminal. Background technique [0002] In recent years, fiber reinforced plastics (FRP: Fiber Reinforced Plastics) have attracted attention in various industrial fields as lightweight and high-strength materials. Fiber-reinforced composite materials composed of reinforcing fibers such as glass fibers, carbon fibers, and aramid fibers and matrix resins are light in weight but have excellent mechanical properties such as strength and elastic modulus compared with competing metals, so they are used in Aircraft parts, spacecraft parts, auto parts, ship parts, civil construction materials, sporting goods and many other fields. In particular, in applications requiring high performance, car...

Claims

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Application Information

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IPC IPC(8): C08J5/24B32B5/28H04R7/02H05K1/03
CPCH04R7/02H05K1/03B32B5/28C08J5/245C08J5/247C08K3/013B32B27/08C08J5/045C08J5/047C08J5/18H01L23/293H05K3/4626H04R2307/025B32B2262/14B32B2262/0269B32B2262/062B32B2457/08B32B27/00C08K7/02C08L1/02H05K1/036
Inventor 斋藤大和中谷雅行川路宽子藤本洋子小野博文河原一文
Owner ASAHI KASEI KK
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