Polyetherimide chemical roughening and electroplating process

The technology of polyetherimide chemistry and polyetherimide is applied in the field of polyetherimide chemical roughening and electroplating process, and can solve the problems of unfavorable personal and operation safety of operators, large environmental pollution, and high equipment requirements. To achieve the effect of smooth appearance of workpiece, simple operation and convenient operation

Inactive Publication Date: 2020-08-11
麦德美科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The current practice in the industry is the coarsening process of high-concentration sulfuric acid + chromic anhydride, which has high requirements for equipment, great environmental pollution, and is extremely unfavorable to the personal and operational safety of operators.

Method used

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  • Polyetherimide chemical roughening and electroplating process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Chemical immersion degreasing: Use the degreasing powder ENPREP NS 35 from MacDermid Technology (Suzhou) Co., Ltd., with ultrasonic equipment, the operating concentration is 50g / L, the operating temperature is 50°C, and the soaking time is 10min.

[0045] It can be understood that this step can effectively remove the particle pollutants on the surface of the product, reduce the surface tension of the sample, and facilitate the infiltration of the subsequent liquid medicine.

[0046] Baking: Dry the polyetherimide in a high-temperature oven; the temperature is 200° C., and the time is 120 minutes.

[0047] It can be understood that baking can drive out the moisture in the sample, increase the bonding force of the coating, and prevent the deformation of the sample and the peeling off of the coating due to internal moisture.

[0048] Pre-roughening: Use the special pre-roughening agent for plastic products of Macderma Technology (Suzhou) Co., Ltd., the model is M-TreatBIO,...

Embodiment 2

[0067] Chemical immersion degreasing: Use the degreasing powder of ENPREP NS 35 from MacDermid Technology (Suzhou) Co., Ltd., with ultrasonic equipment, and the operating concentration is 60g / L. The operating temperature is 50°C, and the soaking time is 10 minutes.

[0068] It can be understood that this step can effectively remove the particle pollutants on the surface of the product, reduce the surface tension of the sample, and facilitate the infiltration of the subsequent liquid medicine.

[0069] Baking: Dry the polyetherimide in a high-temperature oven; the temperature is 180° C., and the time is 200 minutes.

[0070] It can be understood that baking can drive out the moisture in the sample, increase the bonding force of the coating, and prevent the deformation of the sample and the peeling off of the coating due to internal moisture.

[0071] Pre-roughening: Use the special pre-roughening agent for plastic products of Macderma Technology (Suzhou) Co., Ltd., the model i...

Embodiment 3

[0091] Chemical immersion degreasing: Use the model ENPREP NS 35 degreasing powder from MacDermid Technology (Suzhou) Co., Ltd., with ultrasonic equipment, the operating concentration is 40g / L, the operating temperature is 50°C, and the soaking time is 5min.

[0092] Baking: the temperature is 200°C, and the time is 60 minutes.

[0093] It can be understood that baking can drive out the moisture in the sample, increase the bonding force of the coating, and prevent the deformation of the sample and the peeling off of the coating due to internal moisture.

[0094] Pre-roughening: Use the special pre-roughening agent for plastic products of Macderma Technology (Suzhou) Co., Ltd., the model is M-TreatBIO, the operating concentration is 800ml / L, the operating temperature is 40°C, and the operating time is 1min.

[0095] The pre-roughening agent used in this embodiment is solvent-based, which can dissolve a small amount of plastic polymers on the surface of the polyetherimide, so th...

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Abstract

The invention discloses a polyetherimide chemical roughening and electroplating process. The process comprises the following steps of deoiling, wherein deoiling powder is adopted and is matched with ultrasonic equipment to deoil polyetherimide, the operation temperature ranges from 45 DEG C to 55 DEG C, the amount of the deoiling powder ranges from 40 g / L to 60 g / L, and the soaking time ranges from 5 min to 15 min; baking, wherein a high-temperature drying box is used for drying polyetherimide; roughening, wherein a plastic roughening agent is adopted for roughening polyetherimide, and polyetherimide is soaked for 10 min to 30 min under the condition that heating is carried out till the temperature ranges from 80 DEG C to 85 DEG C; neutralization, wherein sulfuric acid and hydrogen peroxide are used for neutralizing the plastic roughening agent, the concentration of each of sulfuric acid and hydrogen peroxide is 30 ml / L, the operation temperature ranges from 20 DEG C to 30 DEG C, and the soaking time ranges from 1 min to 3 min; activation, wherein colloid palladium is used for activating polyetherimide; decollide treatment, wherein decollide liquid is used for soaking polyetherimide; the chemical copper process, wherein the surface of polyetherimide is plated with copper through copper deposition liquor; and electroplating, wherein the surface of polyetherimide is electroplatedwith metal after being plated with copper. According to the polyetherimide chemical roughening and electroplating process, the roughening effect is good, and industrialization can be achieved easily.

Description

technical field [0001] The invention relates to the field of roughening electroplating, in particular to a polyetherimide chemical roughening electroplating process. Background technique [0002] PEI (polyetherimide) plastic is an amber transparent solid with excellent flame retardancy and low smoke. PEI has strong high temperature stability and good toughness and strength. Therefore, the superior thermal stability of PEI can be used to make high-temperature heat-resistant devices. [0003] In view of the excellent performance of PEI plastic, it is widely used at present, but the surface needs to be plated with metal coating to meet the requirements of practical application. [0004] The plastic surface must be roughened before metal plating to provide good adhesion to subsequent metal layers. [0005] The current practice in the industry is the coarsening process of high-concentration sulfuric acid + chromic anhydride, which has high requirements on equipment, great envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D5/56C23C18/40C23C18/20
CPCC23C18/2086C23C18/405C25D5/56
Inventor 邢洪滨徐晨阳姚涛
Owner 麦德美科技(苏州)有限公司
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