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Formula of DMD insulation paper

A technology of insulating paper and formula, which is applied in the direction of chemical instruments and methods, adhesive additives, layered products, etc., can solve the problem of poor dissipation of frictional heat in the sliding contact area, poor thermal stability of DMD insulating paper, and limitations The use of DMD insulating paper and other issues, to achieve the effect of more surface active atoms, improved mechanical properties, and good tensile properties

Inactive Publication Date: 2020-01-14
康利源科技(天津)股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, DMD insulating paper has certain defects compared with metal, such as lower anti-friction performance, heat dissipation and thermal diffusion performance
The frictional heat in the sliding contact area cannot be dissipated well, and the poor thermal stability of DMD insulating paper makes it easy to lose mechanical strength at high surface temperatures
These shortcomings limit the use of DMD insulating paper in the wear ring of hydraulic cylinders

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The present invention provides embodiment one: a formula of DMD insulating paper, including DMD insulating paper composed of polyester non-woven fabric, polyester film and adhesive, wherein the adhesive includes 100 parts of the first main ingredient, 50 parts of the second main ingredient and 9 to 15 parts of auxiliary materials, the auxiliary materials are nano-Al 2 o 3 ;

[0021] The first main ingredient includes 30% to 45% of acrylic resin by volume, 20% to 30% of toughening agent, 0.1% to 5% of coupling agent, and 1% to 7% of KH550 accelerator. The rest of the main material becomes a solvent;

[0022] The second main ingredient includes 25%-35% epoxy resin by volume, 20%-30% plasticizer, 9%-15% oxidant, and the rest of the second main ingredient is solvent.

[0023] Specifically, nano-Al 2 o 3 The average particle size is 40nm, nano Al 2 o 3 Larger or smaller particle sizes all affect the anti-friction performance and tensile performance of the present inve...

Embodiment 2

[0033] Embodiment 2 is different from Embodiment 1 in that: a formula of DMD insulating paper, including DMD insulating paper composed of polyester non-woven fabric, polyester film and adhesive, wherein the adhesive includes 100 parts of the first main ingredient, the second 2. 50 parts of main material and 9 parts of auxiliary material, the auxiliary material is nano-Al 2 o 3 ;

[0034] The first major ingredient comprises 37% acrylates by volume, 30% toughening agent, 5% coupling agent, and 6% accelerator, and the rest in the first major ingredient becomes a solvent;

[0035] The second main ingredient includes 35% epoxy resin by volume, 30% plasticizer, and 10% oxidant, and the remaining components in the second main ingredient are solvents.

[0036] The preparation method of the present invention,

[0037] S1: Put butyl methacrylate, polyamide resin, KH550, triphenylphosphine, and ethyl acetate into the reaction kettle in proportion, and stir at 25 degrees Celsius for 3...

Embodiment 3

[0043] Embodiment 3, the difference from Embodiment 1 is: DMD insulating paper composed of polyester non-woven fabric, polyester film and adhesive, wherein the adhesive includes 100 parts of the first main material, 50 parts of the second main material and 15 parts of auxiliary materials parts, the auxiliary material is nano-Al 2 o 3 ;

[0044] The first major ingredient comprises 37% of the volume of acrylic esters, 30% of the toughening agent, 5% of the coupling agent, 2% of the auxiliary accelerator, and the rest in the first major ingredient becomes a solvent;

[0045] The second main ingredient includes 35% epoxy resin by volume, 30% plasticizer, and 10% oxidant, and the remaining components in the second main ingredient are solvents.

[0046] The preparation method of the present invention,

[0047] S1: Put butyl methacrylate, polyamide resin, KH550, triphenylphosphine, and ethyl acetate into the reaction kettle in proportion, and stir at 25 degrees Celsius for 3.5 ho...

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Abstract

The invention discloses a formula of DMD insulation paper. According to the DMD insulation paper produced through the formula, nano Al2O3 is added into an adhesive, the nano Al2O3 is evenly dispersedon polyester non-woven cloth and the adhesive, the average particle size of the nano Al2O3 is 40 nm, good tensile performance is achieved, because nanoparticles have the characteristics of large specific surface area, multiple surface active atoms, and strong interaction with polymers, filling the polymers with the nanoparticles is an effective means to improve mechanical performance of polymer nanocomposites, through addition of the nano Al2O3 in the adhesive, the anti-friction property of materials is greatly improved, frictional heat in a sliding contact area is reduced, thermal stability of the DMD insulation paper is enhanced, and thus the DMD insulation paper is more suitable for preparation of wear rings of hydraulic oil cylinders.

Description

technical field [0001] The invention relates to the technical field of insulating paper, in particular to a formula of DMD insulating paper. Background technique [0002] DMD insulating paper is a three-layer insulating material composed of two layers of polyester non-woven fabric sandwiched by a layer of insulating polyester film. The appearance of DMD insulating paper products is smooth, free of bubbles and creases. Suitable for slot insulation and liner insulation of electric motors. [0003] However, DMD insulating paper has certain defects compared with metal, such as lower anti-friction performance, heat dissipation and thermal diffusion performance. The frictional heat in the sliding contact area cannot be dissipated well, and the poor thermal stability of DMD insulating paper makes it easy to lose mechanical strength at high surface temperature. These disadvantages limit the use of DMD insulating paper in wear rings of hydraulic cylinders. Contents of the inventi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/02B32B7/12B32B27/12B32B27/36B32B33/00C09J4/06C09J11/04
CPCB32B5/02B32B7/12B32B27/12B32B27/36B32B33/00B32B2250/244B32B2262/0276B32B2307/206B32B2307/54B32B2307/554C08K2003/2227C08K2201/011C09J4/06C09J11/04
Inventor 孙忠海贤璐李旭
Owner 康利源科技(天津)股份有限公司
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