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Preparation and application of polyester adhesive for PET flexible copper clad laminate

A flexible copper clad laminate and adhesive technology, used in adhesives, lamination, layered products, etc., can solve the problems of copper clad laminates that cannot be fully cured, curled, deformed, etc., and achieves reliable performance, long service life, and high flame retardant effect.

Inactive Publication Date: 2018-03-09
广东圣帕新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The thermal deformation temperature of PET film is below 150°C, and it will curl and deform when used at a higher temperature.
However, the copper clad laminates with epoxy resin and acrylic resin adhesives cannot be fully cured below 150 °C.

Method used

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  • Preparation and application of polyester adhesive for PET flexible copper clad laminate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Step 1: Weigh 32.38 parts of solid saturated polyester resin Vylon670 and 23.15 parts of solid saturated polyester resin Vylon673 into different clean stainless steel constant pressure reaction vessels, and then add butanone to the stainless steel constant pressure reaction vessel while stirring 101.70 parts and 46.95 parts of toluene were dissolved, and after all the solvents were added, the temperature of the two stainless steel constant pressure reaction vessels was raised to 80°C, and the constant temperature continued to stir for 5 hours. The pressure of the stainless steel constant pressure reaction vessel was 3kg / cm 2 ;

[0033] Step 2: turn off the heat source, and continue to stir for 3 hours while making the saturated polyester resin solution cool naturally;

[0034] Step 3: After stopping stirring, filter with a screen, and store the filtered saturated polyester resin solution in a stainless steel bucket;

[0035] Step 4: Add the saturated polyester resin so...

Embodiment 2

[0038] Step 1: Weigh 32.38 parts of solid saturated polyester resin Vylon670 and 23.15 parts of solid saturated polyester resin ES210 into different clean stainless steel constant pressure reaction vessels, and then add 101.70 parts of Ding Dissolve the ketone and 46.95 parts of toluene. After all the solvents are added, raise the temperature of two stainless steel constant pressure reaction vessels to 90°C, and continue stirring at constant temperature for 4 hours. The pressure of the vessels is 3kg / cm 2 ;

[0039] Step 2: turn off the heat source, and continue to stir for 3 hours while making the saturated polyester resin solution cool naturally;

[0040] Step 3: After stopping stirring, filter with a screen, and store the filtered saturated polyester resin solution in a stainless steel bucket;

[0041] Step 4: Add the saturated polyester resin solution dissolved and filtered in the above step 1 into the mixing tank, and then add 12.50 parts of bisphenol A epoxy resin, 28.0...

Embodiment 3

[0044] Step 1: Weigh 26.5 parts of solid saturated polyester resin Vylon673 and 25.8 parts of solid saturated polyester resin ES210 into different clean stainless steel constant pressure reaction vessels, and then add 150 parts of Ding Ketone, after all the solvents are added, the temperature of the two stainless steel constant pressure reaction vessels is raised to 80°C, and the stirring is continued for 4 hours, and the pressure of the vessels is 4kg / cm 2 ;

[0045] Step 2: turn off the heat source, and continue stirring for 2 hours while the saturated polyester resin solution is cooled naturally;

[0046] Step 3: After stopping stirring, filter with a sieve, and store the filtered saturated polyester resin solution in a stainless steel barrel;

[0047] Step 4: Add the saturated polyester resin solution dissolved and filtered in the above step 1 into a stainless steel mixing tank, and then add 12.50 parts of bisphenol A epoxy resin, 28.00 parts of P series halogen-free flam...

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Abstract

The invention discloses preparation and application of a polyester adhesive for a PET flexible copper clad laminate. The polyester adhesive for the PET flexible copper clad laminate is prepared through mixing a main body, i.e., saturated polyester resin and a curing agent, i.e., amino resin, adding a proper amount of epoxy resin into the mixture for blended modification, and mixing a certain amount of catalyst, a certain amount of flame retardant, a certain amount of antifoamer, a certain amount of dispersant, a certain amount of organic solvent and the like. The polyester adhesive is preparedfrom the following ingredients in parts by weight: 20-70 parts of saturated polyester resin, 5-20 parts of amino resin, 10-30 parts of epoxy resin, 0.1-1.0 part of catalyst, 10-30 parts of flame retardant, 0.1-1.0 part of antifoamer, 0.1-2.0 parts of dispersant and 50-150 parts of organic solvent. The polyester adhesive for the PET flexible copper clad laminate has the advantages of high peelingstrength, high flame retardance, high flexural strength, low shrinkage ratio, good heat resistance and chemical solvent resistance, yellowing resistance, reliable performance and reasonable cost.

Description

technical field [0001] The invention relates to the technical field of circuit board processing, in particular to a polyester adhesive used in PET flexible copper-clad laminates. Background technique [0002] At present, there are polyester adhesives, polyurethane adhesives, modified epoxy adhesives, and acrylic adhesives for PET flexible copper clad laminates in the market. Polyester adhesives have hot-melt adhesiveness, excellent insulation, adhesion and flexibility, but poor heat resistance; although polyurethane adhesives can be cured at lower temperatures, they have good solvent resistance. It has poor heat resistance and low peel strength, and its curing agent is polyisocyanate, which is highly toxic; modified epoxy adhesive has strong adhesion and good heat resistance, but it is brittle and easy to yellow Generally, toughening modification is required; the flame retardant level of acrylic adhesive is not enough, and the shrinkage rate is high. [0003] Moreover, the...

Claims

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Application Information

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IPC IPC(8): C09J167/00B32B15/20B32B15/09B32B27/36B32B37/12
CPCB32B15/09B32B15/20B32B27/36B32B37/1207C08L2203/20C08L2205/025C08L2205/035C09J167/00C08L67/00C08L63/00C08L61/32
Inventor 徐娘华易利华
Owner 广东圣帕新材料股份有限公司
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