Unlock instant, AI-driven research and patent intelligence for your innovation.

Fabric chemical plating method using HBP-NH2/ Ag+ coordination compound as activate fluid

A technology of HBP-NH2 and coordination compounds, which is applied in the fields of chemical engineering and textile functional finishing, can solve the problems of complex activation process, scarce sources, high price, etc., achieve high conductivity, uniform distribution of catalyst silver, and reduce preparation costs Effect

Inactive Publication Date: 2015-05-20
SHANGHAI UNIV OF ENG SCI
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] At present, in the activation process of fabric electroless metal plating, the precious metal catalyst used is mainly metal palladium, that is, palladium chloride-type activation solution, which has good stability and is not afraid of light, and can be constructed in the open air. All have catalytic activity, but the activation process is more complicated, and the source is scarce and expensive; in addition to metal palladium, metal silver is used as a catalyst in the non-metallic material activation process, that is, silver nitrate-type activation solution, which is also very effective for copper and the like. Good catalytic activity, it is suitable for the pre-plating treatment of various non-metallic materials in combination with electroless copper plating. At the same time, silver nitrate and other sources are wide and the cost is low. It has a wide application value in the processing of metallized electromagnetic shielding fabrics

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) hyperbranched polyamide-amine (HBP-NH 2 )Synthesis

[0039] Add a mixed solution of 103.17g diethylenetriamine and 45mL methanol to a 500mL three-necked round-bottomed flask, and place it in an ice-water bath. The mixed solution was added into the diethylenetriamine solution, and reacted for 12 hours to obtain a diethylenetriamine-methyl acrylate polymeric precursor.

[0040] The obtained polymeric precursor was transferred to the eggplant-shaped bottle of the rotary evaporator, and the reaction system was evacuated by a circulating water multi-purpose vacuum pump. At the same time, the temperature of the system was raised to 60 ° C in the oil bath during the high-speed rotation. React at 60°C for 1 hour, extract the methanol in the solvent; then raise the reaction temperature to 140°C, and react for 2 hours to obtain HBP-NH 2 .

[0041] (2)HBP-NH 2 / Ag + Preparation of Activation Finishing Solution

[0042] First prepare HBP-NH with a concentration of 10g / L ...

Embodiment 2

[0049] (1) hyperbranched polyamide-amine (HBP-NH 2 )Synthesis

[0050] Add the mixed solution of 60.1g ethylenediamine and 45mL methanol to a 500mL three-neck round bottom flask, and place it in an ice-water bath. The mixed solution was added into the ethylenediamine solution, and reacted for 12 hours to obtain an ethylenediamine-methyl acrylate polymer precursor.

[0051] The obtained polymeric precursor was transferred to the eggplant-shaped bottle of the rotary evaporator, and the reaction system was evacuated by a circulating water multi-purpose vacuum pump. At the same time, the temperature of the system was raised to 60 ° C in the oil bath during the high-speed rotation. React at 60°C for 1 hour, extract the methanol in the solvent; then raise the reaction temperature to 140°C, and react for 2 hours to obtain HBP-NH 2 .

[0052] (2)HBP-NH 2 / Ag + Preparation of Activation Finishing Solution

[0053] With the step (2) of embodiment 1.

[0054] (3) Activation treatm...

Embodiment 3

[0059] (1) HBP-NH 2 Synthesis

[0060] The synthesis process is the same as the step (1) of Example 1.

[0061] (2)HBP-NH 2 / Ag + Preparation of Activation Finishing Solution

[0062] Prepare 10g / L of HBP-NH 2 solution and 10g / L silver nitrate solution, slowly add 10mL10g / L silver nitrate to 20mL10g / L HBP-NH 2 solution, and diluted to 100mL, after the mixed solution was shaken, it was left to stand in a water bath at 30°C for 30 hours to obtain HBP-NH 2 / Ag + Activation finishing solution, wherein the content of silver nitrate is 1g / L.

[0063] (3) Activation treatment of fabric

[0064] With the step (3) of embodiment 1.

[0065] (4) Electroless plating

[0066] The method of electroless copper plating is the same as step (4) of Example 1. The average surface resistance of the prepared conductive polyester fabric is 8mΩ / sq, and the electromagnetic shielding efficiency is about 85dB.

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

The invention relates to a fabric chemical plating method using HBP-NH2 / Ag+ coordination compound as activate fluid. By adopting a padding method, the HBP-NH2 / Ag+ coordination compound activate finishing fluid is cleared up to the surface of the fabric, an activate layer which is uniformly distributed is formed in the surface of the fabric, and then is immersed in chemical plating solution, reaction temperature is controlled in 30-40 DEG C, after processing the chemical plating for 20-30 minutes, the fabric is taken out, and washed by water and dried, and so that the chemical plating process of the electromagnetic screen fabric is finished. Compared with the prior art, the fabric chemical plating method using HBP-NH2 / Ag+ coordination compound as activate fluid solves the problem of poor binding force between a chemical plating back metal layer and base materials in a traditional preparation process, enables silver catalyst to uniformly distribute, and enables the plating layer structure to be in order. The fabric chemical plating method using HBP-NH2 / Ag+ coordination compound as activate fluid has the advantages of being high in electrical conductivity, good in screen effect, capable of shortening process procedure, greatly saving energy and avoiding the production of amount of industrial waste water.

Description

technical field [0001] The invention belongs to the field of chemical engineering and textile functional finishing, especially relates to the use of HBP-NH 2 / Ag + The activation solution of the coordination compound pre-treats the fabric, and then performs electromagnetic shielding electroless plating treatment. Background technique [0002] Electroless metal-plated fabric is a kind of electromagnetic shielding material with excellent performance. It mainly uses electroless plating to deposit nickel, copper, silver and other metals on the surface of the fabric. Compared with other shielding materials, it also has the characteristics of softness, breathability, light weight, etc., and has a wide range of applications in the fields of electronic products, construction, and protective clothing. As the harm of electromagnetic radiation to the human body has gradually been paid attention to, the development and application of this type of electromagnetic shielding fabric has g...

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): C23C18/30C23C18/40C23C18/34
Inventor 沈勇张惠芳颜峰王黎明檀国登
Owner SHANGHAI UNIV OF ENG SCI