Method for preparing perchlorovinyl conductive adhesive dried quickly at room temperature
A technology of vinyl perchloride and conductive adhesive, used in conductive adhesives, adhesives, epoxy resin adhesives, etc., can solve the problems of high curing temperature, multi-component packaging, slow drying speed, etc., to achieve high chemical stability, The effect of long storage period and easy construction
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] (1) Synthetic resin
[0039] Add 100 parts of castor oil, 100 parts of glycerin, 70 parts of rosin, 10 parts of maleic anhydride, 80 parts of phthalic anhydride, 1 part of lead oxide, and 20 parts of xylene into the reaction kettle, and react for 6 hours at 220 ° C. Dilute 200 parts of solvent (butyl acetate:toluene=1:1 (v / v)) to solid content 55±5%, acid value ≤25mgKOH / g, viscosity 1~20s / Grignard tube 25°C, cool, Filter to obtain synthetic resin for use.
[0040] (2) Preparation of modified silver-coated copper powder
[0041] a. Preparation of main salt solution: AgNO 3 Dissolve in water to form a 0.3mol / L solution, add AgNO under stirring 3 2~3 times the molar amount of NH 3 h 2 O, complete reaction forms transparent silver ammonia solution;
[0042] Preparation of reducing solution: Dissolve glucose in water to form a 0.3mol / L solution, then add stabilizer polyethylene glycol, and stir evenly.
[0043] b. Electroless silver plating
[0044] First wash th...
Embodiment 2
[0052] (1) Synthetic resin
[0053] Add 100 parts of flax oil, 100 parts of pentaerythritol, 20 parts of benzoic acid, 80 parts of phthalic anhydride, 1.5 parts of LiOH, and 30 parts of xylene into the reaction kettle, and react for 8 hours at 200 ° C. =1:1 (v / v)) 200 parts diluted to solid content 50±5%, acid value ≤25mgKOH / g, viscosity 1~20s / Grignard tube 25°C, cooled and filtered to obtain synthetic resin. use.
[0054] (2) Preparation of modified silver-coated copper powder
[0055] a. Preparation of main salt solution: AgNO 3 Dissolve in water to form a 0.1mol / L solution, add AgNO under stirring 3 2~3 times the molar amount of NH 3 h 2 O, complete reaction forms transparent silver ammonia solution;
[0056] Preparation of reduction solution: Dissolve formaldehyde in water to form a 0.5mol / L solution, then add stabilizer polyethylene glycol, and stir evenly.
[0057] b. Electroless silver plating
[0058] First wash the copper powder with acetone to remove oil, t...
Embodiment 3
[0066] (1) Synthetic resin
[0067] With 100 parts of castor oil, 70 parts of pentaerythritol, 40 parts of diethylene glycol, 601 # 10 parts of epoxy resin, 10 parts of benzoic acid, 15 parts of maleic anhydride, 100 parts of phthalic anhydride, and 40 parts of xylene were added to the reaction kettle and reacted for 10 hours at 190°C. :1) Dilute 100 parts until the solid content is 75±5%, the acid value is ≤25mgKOH / g, the viscosity is 1~20s / Grignard tube at 25°C, cooled and filtered to obtain a synthetic resin for use.
[0068] (2) Preparation of modified silver-coated copper powder
[0069] a. Preparation of main salt solution: AgNO 3 Dissolve in water to form a 0.2mol / L solution, add AgNO under stirring 3 2~3 times the molar amount of NH 3 h 2 O, complete reaction forms transparent silver ammonia solution;
[0070] Preparation of reducing solution: Dissolve tartrate in water to form a 0.25mol / L solution, then add stabilizer polyethylene glycol, and stir evenly.
[00...
PUM
| Property | Measurement | Unit |
|---|---|---|
| electrical resistivity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More