Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Technique used for ABS plastic substrate chemical plating pre-processing

An ABS plastic, chemical plating technology, applied in the direction of coating, can solve the problems of low operability, unsuitable for industrial production, complex composition of treatment liquid, etc., to achieve the effect of high operability, reduction of processing steps, and reduction of difficulty

Inactive Publication Date: 2009-09-02
NANKAI UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The composition of such treatment liquid is relatively complex, and toxic and carcinogenic solvents are used, the operability is not high, and it is not suitable for large-scale industrial production

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Technique used for ABS plastic substrate chemical plating pre-processing
  • Technique used for ABS plastic substrate chemical plating pre-processing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Put the degreased ABS test piece into the microetching solution prepared by 36% hydrogen peroxide and 98% concentrated sulfuric acid with a volume ratio of 1:2 for microetching for 5min, wash with water, and then immerse in the microetching solution containing 0.5g chitosan CTS powder. Treat in 100ml of 1% acetic acid solution for 10 minutes, and dry at 50°C for 80 minutes. into the PdCl 2 Adsorb in a solution containing 0.1g / L HCl 2.0g / L for 15min at a temperature of 50°C, wash with water, and use NaH 2 PO 2 The 5g / L solution was reduced for 5min at 40°C, washed with water, and then placed in the electroless nickel plating solution for electroless plating.

[0032] The obtained coating is uniform and dense, and has good bonding force.

Embodiment 2

[0034] Change the volume ratio of hydrogen peroxide and sulfuric acid in Example 1 to 1:4, and all the other conditions are the same as in Example 1.

[0035] The obtained coating is uniform and dense, and has good bonding force.

Embodiment 3

[0037] Change the mass of the CTS powder in Example 2 to 0.2 g, and the film-forming treatment time to 5 minutes, and the rest of the conditions are the same as in Example 2.

[0038] The obtained coating is uniform and dense, and has good bonding force.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A new process for the pretreatment of ABS plastic base electroless plating. The present invention utilizes the film-forming properties of biopolymer—chitosan (CTS) or chitosan derivative itself and its chelating and adsorption effect on palladium, and uses chemical methods to reduce the surface of the substrate to obtain a catalyst that is catalytic to the subsequent electroless nickel plating. The active center of the role-Pd0, thereby replacing the physical adsorption of Pd / Sn colloidal activation and sensitization of the traditional electroless nickel plating on the surface of the non-conductive substrate by chemical adsorption; it strengthens the stability of the process, reduces the production cost, and avoids the In the traditional process, chromium and tin pollute the environment, especially the chemical adsorption instead of physical adsorption improves the bonding force between the coating and the substrate. The morphology of the coating was observed by SEM, and the obtained coating was uniform and dense. The thermal shock test and scratch test show that the bonding force of the coating is good.

Description

【Technical field】: [0001] The invention belongs to the technical field of plastic processing, and in particular relates to a new process for the pretreatment of ABS plastic base electroless plating. 【Background technique】: [0002] There are many methods of plastic metallization, among which electroless plating is currently the most widely used processing method. Electroless plating mainly uses a reducing agent to preferentially reduce the metal ions in the solution on the surface of the catalytic object under the catalytic action of a catalytically active substance to form a metal coating with self-catalytic ability, so that it can be deposited continuously to form a certain thickness plating. Since ABS plastic does not have electrical conductivity and the surface does not have catalytic activity, it is very important to activate the surface of ABS plastic, which will directly affect the quality of subsequent chemical plating. [0003] Activation is the introduction of ca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/20C08L55/02C08J7/04
Inventor 张宝贵唐雪娇曹梦毕成良闫丽娟
Owner NANKAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com