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Adhesive for conductive cloth adhesive tape, conductive cloth adhesive tape and preparation method and application thereof

An adhesive and conductive cloth technology, applied in the direction of conductive adhesives, adhesives, adhesive types, etc., can solve the problems of poor flexibility and hard colloid, and achieve strong adhesion, moderate flexibility and adhesion strength. The effect of cost of use

Inactive Publication Date: 2020-06-26
东莞市星勤胶粘制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The above adhesives have high bonding strength at room temperature, but the cured colloid is hard and has poor flexibility.

Method used

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  • Adhesive for conductive cloth adhesive tape, conductive cloth adhesive tape and preparation method and application thereof
  • Adhesive for conductive cloth adhesive tape, conductive cloth adhesive tape and preparation method and application thereof
  • Adhesive for conductive cloth adhesive tape, conductive cloth adhesive tape and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] An adhesive for conductive cloth tape, made of the following raw materials by weight: epoxy resin: 28 parts, silicone resin: 14 parts, flaky silver powder: 89 parts, white carbon black: 3.5 parts, curing agent: 25 parts parts, accelerator: 18 parts, microcrystalline wax: 10 parts, pine tar oil: 3.6 parts, sorbitol: 5 parts.

[0065] The epoxy resin includes bisphenol A type epoxy resin and acrylic epoxy resin, the average relative molecular weight of the bisphenol A type epoxy resin is 300-700, the polymerization degree n<2, and the softening point is lower than 50°C. The silicone resin is vinyl terminated T-type phenyl polysiloxane. Accelerators include N,N-dimethylaniline and 2,4,6,-tris(dimethylaminomethyl)phenol.

[0066] Silica is precipitated silica. The concentration of sorbitol is more than 60%.

[0067] The curing agent is a mixture of curing agent 1 for epoxy resin and curing agent 2 for silicone resin in a weight ratio of 1.2:0.5. Curing agent 1 contains t...

Embodiment 2-6

[0073] The adhesives in Examples 2-6 are different from the adhesives in Example 1 in the amount of raw materials, see Table 1 for details;

[0074] The adhesive of embodiment 2-6 is different from the epoxy resin, accelerator, curing agent 1 and curing agent 2 in the raw material of the adhesive in embodiment 1, and the weight of curing agent 1 and curing agent 2 The ratio is different, see Table 2 for details;

[0075] In the preparation method of the adhesive in embodiment 2-6 and the adhesive in embodiment 1, the stirring time in step (2), the ultrasonic dispersion time are different, and the stirring temperature and stirring time in step (3) are different , see Table 3 for details.

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Abstract

The invention discloses an adhesive for a conductive fabric adhesive tape, a conductive fabric adhesive tape and a preparation method and application of the conductive fabric adhesive tape. The adhesive is prepared from the following raw materials, by weight: 25-33 parts of epoxy resin, 12-15 parts of organic silicon resin, 78-106 parts of flake silver powder, 3-5 parts of white carbon black, 25-31 parts of a curing agent, 17-25 parts of an accelerant, 8-14 parts of microcrystalline wax, 3.6-6 parts of pine tar and 2-7 parts of sorbitol. The preparation method comprises the following steps: (1), mixing the epoxy resin, the organic silicon resin and the curing agent to prepare a resin matrix with uniform components; (2), dissolving white carbon black and flake silver powder in the resin matrix prepared in the step (1), performing stirring for 1-2 hours, and performing ultrasonic dispersion for 2-4 hours to obtain a mixture of the resin matrix and conductive filler; and (3), adding microcrystalline wax into the mixture obtained in the step (2), performing stirring for 20-45 minutes at the temperature of 100-145 DEG C, adding pine tar and sorbitol, and uniformly mixing the components,so as to obtain a finished product. The adhesive has the advantages of excellent thermal stability and moderate flexibility and bonding strength; the adhesive for the conductive fabric adhesive tapecan be used for the conductive fabric adhesive tape.

Description

technical field [0001] The invention relates to adhesives and application fields, more specifically, it relates to an adhesive for conductive cloth tapes, conductive cloth tapes, a preparation method and application thereof. Background technique [0002] Adhesive for conductive cloth tape is an adhesive with certain conductive properties after curing or drying. It usually consists of resin matrix and conductive filler, namely conductive particles, as the main components, and the conductive particles are combined through the bonding effect of resin matrix , form a conductive path, and realize the conductive connection of the adhered materials; the conductive cloth tape is also a tape made of conductive cloth, and its characteristic is to increase the characteristics of "glue" on the basis of the conductive cloth, so as to achieve the effect of magnetic shielding , Widely used in various electronic machine parts to form conductor wiring. Since the resin matrix of the adhesive...

Claims

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Application Information

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IPC IPC(8): C09J163/02C09J163/10C09J183/07C09J11/06C09J11/04C09J11/08C09J9/02C09J7/21C09J7/30C09J7/40
CPCC08K2003/0806C08K2201/001C08L2201/08C08L2205/035C09J9/02C09J11/04C09J11/06C09J11/08C09J163/00C09J163/10C09J2203/326C09J7/21C09J7/30C09J7/40C08L63/10C08L83/04C08L91/06C08L95/00C08K13/04C08K7/00C08K3/08C08K7/26C08K5/053
Inventor 陈康陈健万均成
Owner 东莞市星勤胶粘制品有限公司
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