Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrically insulating resin sheet

A technology of electrical insulation and resin sheets, applied in the direction of insulators, synthetic resin layered products, synthetic cellulose/non-cellulose material pulp/paper, etc., can solve the problem of reduced tensile strength and tearing force of electrical insulating resin sheets Different, tear resistance is not necessarily excellent, etc., to achieve the effect of excellent tear resistance and heat resistance

Inactive Publication Date: 2013-10-16
NITTO DENKO CORP +1
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, although the above-mentioned electrically insulating resin sheet has tracking resistance as the electrical insulation required between the coil wires of the motor, etc., the tensile strength and the like are lowered by heat generated by the coil wires and the like. , there is a problem that the heat resistance is not necessarily sufficient
[0005] In addition, there is a problem that the above-mentioned electrically insulating resin sheet does not necessarily have sufficient resistance to tearing force, that is, there is a problem that tear resistance, which is a mechanical property required for a resin sheet, is not necessarily excellent.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrically insulating resin sheet
  • Electrically insulating resin sheet
  • Electrically insulating resin sheet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1）

[0117] First, prepare the following raw materials.

[0118] Polysulfone resin: polyether polyphenylsulfone resin (PES) resin

[0119] (The molecule contains multiple sulfonyl groups, ether bonds, and aromatic hydrocarbons)

[0120] (Solvay Advanced Polymers K.K. product name "RADEL A-300A") was used.

[0121] · Polyamide resin: polyamide resin (PA9T)

[0122] (Multiple terephthalic acid units and nonanediamine units in the molecule)

[0123] (KURARAY CO.,LTD product name "Genestar N1000A")

[0124] Next, the PES resin and the PA resin were mixed at 310° C. using a twin-screw kneader (manufactured by Technovel Corp.) so that the weight ratio of PES / PA=80 / 20 was used to prepare a resin mixture.

[0125] Next, the resin mixture was molded into a sheet with a thickness of 100 μm by extrusion molding at 310° C. to form an electrically insulating resin layer, thereby producing an electrically insulating resin sheet composed of only the sheet-shaped electrically insulating resin ...

Embodiment 2）

[0127] Except that the resin mixture was prepared at 320° C. and extrusion molding was performed at 320° C., it was carried out in the same manner as in Example 1, and an electrical insulating resin sheet consisting only of a sheet-shaped electrical insulating resin layer was produced.

Embodiment 3）

[0129] An electrical insulating resin sheet consisting only of a sheet-shaped electrical insulating resin layer was produced in the same manner as in Example 1 except that the resin mixture was prepared at 330°C and extrusion molding was performed at 330°C.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

In order to address the problem of providing an electrically insulating resin sheet with excellent tear resistance and heat resistance, an electrically insulating resin sheet is provided with an electrically insulating resin layer containing both a polysulfone resin having multiple sulfonyl groups in the molecules and a thermoplastic resin other than said polysulfone resin, said electrically insulating resin sheet characterized in that said electrically insulating resin layer includes dispersed phases in which the aforementioned thermoplastic resin other than the polysulfone resin is dispersed in the aforementioned polysulfone resin, and the number of the aforementioned dispersed phases having a shortest diameter of 0.5µm or greater is 10 or fewer in areas in the range of 294µm2 of sections in the thickness direction of the aforementioned electrically insulating resin layer.

Description

technical field [0001] The present invention relates to an electrically insulating resin sheet. Background technique [0002] Conventionally, various electrical insulating resin sheets are known as an electrical insulating resin sheet, for example, an electrical insulating resin sheet that is used to be placed around a coil wire (coil wire) as a heating element of a motor is known. Wait. [0003] As such an electrically insulating resin sheet, specifically, for example, an electrically insulating resin sheet having only an electrically insulating resin layer containing a plurality of aromatic hydrocarbons and a plurality of aromatic hydrocarbons in the molecule is known. Sulfur bond (-S-) polyphenylene sulfide resin and vinyl copolymer (Patent Document 1). [0004] However, although the above-mentioned electrically insulating resin sheet has tracking resistance as the electrical insulation required between the coil wires of the motor, etc., the tensile strength and the lik...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08J5/18B32B27/00C08L77/00C08L81/06C08L101/00D21H13/26D21H27/30H01B17/56
CPCD21H13/26C08L81/06C08L77/00D21H27/30B32B27/08B32B27/286B32B2250/40B32B2270/00B32B2307/304B32B2307/306B32B2307/5825
Inventor 请井博一笠置智之吉良佳子木原靖之玉井彰
Owner NITTO DENKO CORP