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Environment-friendly bonding agent for ceramic sheet tape casting and preparation method of bonding agent

A technology of ceramic flakes and adhesives, which is applied in the manufacture of adhesives and the field of environmentally friendly adhesives. It can solve the problems of strong solvent volatilization, environmental pollution, stimulation, etc., and achieve the effect of good compatibility

Inactive Publication Date: 2012-11-28
广州三则电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these two adhesives can achieve a good dispersion and film-forming effect, their solvent volatilization has a strong and irritating odor, which has caused serious pollution to the environment and is not conducive to employees' work.

Method used

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  • Environment-friendly bonding agent for ceramic sheet tape casting and preparation method of bonding agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Mix the Mobil Exxon isoparaffin ISOPAR E used as a solvent with ethanol at a ratio of 2:1, take 64 parts for later use, and then slowly add polyvinyl alcohol produced by German Waker Company as a high molecular polymer to the spare solvent 26 parts of butyral, stirring at the same time until the polyvinyl butyral resin is fully dispersed, then adding 10 parts of acetyl tributyl citrate as a plasticizer, stirring evenly, sealing and standing for 4 hours, then opening the cover and stirring until The resin is fully dissolved and becomes transparent. Seal and stand for defoaming for 8 hours. The obtained mixture is the environmental protection adhesive of the present invention.

Embodiment 2

[0017] Mix the Mobil Exxon isoparaffin ISOPAR E used as a solvent with ethanol at a ratio of 2:1, take 80 parts for later use, and then slowly add polyvinyl alcohol produced by German Waker Company as a high molecular polymer to the spare solvent 15 parts of butyral, stirring at the same time until the polyvinyl butyral resin is fully dispersed, then adding 5 parts of acetyl tributyl citrate as a plasticizer, stirring evenly, sealing and standing for 8 hours, then opening the cover and stirring until The resin is fully dissolved and becomes transparent. Seal and stand for defoaming for 15 hours. The obtained mixture is the environmental protection adhesive of the present invention.

Embodiment 3

[0019] Mix the Mobil Exxon isoparaffin ISOPAR E used as a solvent with isopropanol at a ratio of 1:1, take 56 parts for use, and then slowly add Polymer E from Solutia Company as a high molecular polymer to the spare solvent. 30 parts of vinyl butyral, while stirring until the polyvinyl butyral resin is fully dispersed, then add 12 parts of acetyl tributyl citrate as a plasticizer, 1 part of methyl siloxane, and 1 part of glyceride Stir evenly, seal and let stand for 6 hours, then open the cover and stir until the resin is fully dissolved and becomes transparent. Seal and stand for defoaming for 20 hours. The obtained mixture is the environmental protection adhesive of the present invention.

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Abstract

The invention provides an environment-friendly bonding agent for ceramic sheet tape casting and a preparation method of the bonding agent. The bonding agent comprises the following components in percentage by weight: 15%-30% of polyvinyl butyral, 5%-14% of citric acid ester compounds, 56%-80% of solvent formed by selecting at least two of alkanes, alcohols and heterogeneous alkanes. The preparation method comprises the following steps of: adding polyvinyl butyral into the solvent, and stirring until resin is dispersed fully; then adding the citric acid ester compounds and stirring, sealing, standing and defoaming for 4-8 hours; and opening a cover and stirring until the resin is dissolved fully and is of a transparent shape, and sealing and standing for 8-36 hours. The bonding agent has no residual impurity after high-temperature decomposition, has good adhesion stability, is used for tape casting and molding an electronic ceramic film, and is mixed and is subjected to ball milling with ceramic powder materials, thereby obtaining uniformly dispersed ceramic slurry; the ultrathin electronic ceramic film sheet obtained by tape casting technology is neat and smooth, and has no needle holes, no air bubbles, no cracks, no uneven thickness, no adhesion film and other abnormalities; and the finished product film sheet has favorable lamination property and ceramic operation intensity, has tiny volatile flavor, and is friendly.

Description

technical field [0001] The invention relates to an adhesive, especially an adhesive suitable for the production of ultra-thin buzzer chips, ultra-thin alumina substrates, laminated chip multilayer ceramic inductors, laminated chip ceramic capacitors and other chip components. The environmental protection adhesive of this invention also relates to the manufacture method of this adhesive. Background technique [0002] Today, when electronic ceramic components are widely used, the ceramic sheet tape casting process can obtain uniform and dense diaphragms. In addition to the necessary high-quality ceramic powder, the binder used as an organic carrier for ceramic powder film formation is also very critical. Adhesive The quality and compatibility of the mixture will directly affect the quality of the components. [0003] At present, it is well known that the adhesives used by component manufacturers are mainly composed of polymers, solvents, and plasticizers. The solvents used ar...

Claims

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Application Information

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IPC IPC(8): C04B35/634
Inventor 陈建权
Owner 广州三则电子材料有限公司
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