CN103589290A - Anticorrosive primer for circuit board as well as preparation method thereof - Google Patents

Abstract

The invention discloses anticorrosive primer for a circuit board. The anticorrosive primer is characterized by being prepared from the following raw materials in parts by weight: 40-45 parts of E-12 epoxy resin, 15-20 parts of unsaturated polyester, 3-4 parts of zeolite powder, 7-9 parts of xylene, 5-6 parts of cyclohexanone, 2-3 parts of titanium dioxide, 1-2 parts of talcum powder, 3-4 parts of ammonium triphosphate, 1-2 parts of butyltin mercaptide, 12-14 parts of sepiolite, 16-19 parts of vermiculite, 1-2 parts of an antiaging agent NBC (Nickelous N, N-dibutyldithiocarbamate), 2-3 parts of ethylene bis stearamide, 10-14 parts of diamino diphenyl sulphone, 3-4 parts of an accelerant DM (2, 2'-dibenzothiazoledisulfde), 2-3 parts of vinyl triethoxysilane, 3-5 parts of antimonous oxide, 1-2 parts of sodium benzoate and 3-4 parts of a dispersing auxiliary. The anticorrosive primer disclosed by the invention has the advantages that the dispersing auxiliary improves the optical property, so that the primer is uniformly dispersed, and the stability of the primer is maintained; ammonium triphosphate is added into the primer, so that the anticorrosive primer has better circuit board function and can relieve fire behavior; the zeolite powder is added, so that the strength and the anti-corrosion property of the product can be improved.

Description

A kind of wiring board anti-corrosion primer and preparation method thereof

Technical field

The present invention relates to a kind of paint and preparation method thereof, particularly a kind of wiring board anti-corrosion primer and preparation method thereof.

Background technology

The title of circuit card has: wiring board, pcb board, aluminium base, high frequency plate, PCB, ultra-thin wiring board, ultrathin circuit board, printing (copper lithographic technique) circuit card etc.Circuit card makes circuit miniaturization, visualize, for the batch production of permanent circuit with optimize electrical appliance layout and play an important role.Circuit card is owing to working in various environment, and a lot of environment are severe, and illumination, high temperature, corrosion need to be coated lacquer painting protection on circuit card, and existing paint can not meet these needs.

Summary of the invention

The object of this invention is to provide a kind of wiring board anti-corrosion primer with fire-proof function and preparation method thereof.

In order to realize object of the present invention, the present invention passes through following scheme implementation:

An anti-corrosion primer, is made by the raw material of following weight part: E-12 epoxy resin 40-45, unsaturated polyester 15-20, zeolite powder 3-4, dimethylbenzene 7-9, cyclohexanone 5-6, titanium dioxide 2-3, talcum powder 1-2, tripolyphosphate ammonium 3-4, thiol-butyl tin 1-2, sepiolite 12-14, vermiculite 16-19, antioxidant NBC 1-2, ethylene bis stearamide 2-3, diamino diphenyl sulfone 10-14, altax 3-4, vinyltriethoxysilane 2-3, antimonous oxide 3-5, Sodium Benzoate 1-2, dispersing auxiliary 3-4;

Described dispersing auxiliary makes by the following method: the weight part of its each feed composition is: kaolin 200-210, attapulgite 30-40, aluminium nitride 1-2, Sodium dodecylbenzene sulfonate 2-3, jade 2-3, nano titanium oxide 1-2, Starso 2-3, Silane coupling agent KH550 2-3, dimethyl silicone oil 1-2, calcium stearate 1-2, morpholine 1-2; Preparation method adds kaolin, attapulgite in 12-15% hydrochloric acid soln and soaks 3-4 hour, takes out, and with clear water, cleans, and calcines 3-4 hour with sending in calcining furnace at 530-550 ℃, cooling, merges and grinds to form 300-400 order powder with jade; Add aluminium nitride, Sodium dodecylbenzene sulfonate, nano titanium oxide, Starso to continue grinding distribution 2-3 hour, then add other remaining component to be ground to fully to disperse to obtain 300-400 order powder, obtain.

Wiring board anti-corrosion primer of the present invention, by following concrete steps, made:

(1) E-12 epoxy resin, unsaturated polyester, zeolite powder, dimethylbenzene, cyclohexanone, titanium dioxide, talcum powder, tripolyphosphate ammonium are added in reactor and stirred, temperature of reaction is controlled at below 40-60 ℃, stirs 0.5-1 hour;

(2) in reactor, add thiol-butyl tin, sepiolite, vermiculite, antioxidant NBC, ethylene bis stearamide, diamino diphenyl sulfone, altax again, temperature of reaction is controlled at below 70-80 ℃, stirs 0.5-1 hour;

(3) finally add all the other remaining components, mix, stir, grind, obtain the slurry of 20-40 μ m, filter and get final product.

Dispersing auxiliary of the present invention has improved optical property, and paint is uniformly dispersed, and has maintained the stability of paint; In paint of the present invention, add tripolyphosphate ammonium, had good circuit board function, can slow down the intensity of a fire; Add zeolite powder can improve product strength and non-corrosibility.

Specific embodiments

Below by specific examples, the present invention is described in detail.

An anti-corrosion primer, by following weight part (kilogram) raw material make: E-12 epoxy resin 40, unsaturated polyester 15, zeolite powder 3, dimethylbenzene 7, cyclohexanone 5, titanium dioxide 2, talcum powder 1, tripolyphosphate ammonium 3, thiol-butyl tin 1, sepiolite 12, vermiculite 16, antioxidant NBC 1, ethylene bis stearamide 2, diamino diphenyl sulfone 10, altax 3, vinyltriethoxysilane 2, antimonous oxide 3, Sodium Benzoate 1, dispersing auxiliary 3;

Described dispersing auxiliary makes by the following method: the weight part of its each feed composition (kilogram) be: kaolin 200, attapulgite 30, aluminium nitride 1, Sodium dodecylbenzene sulfonate 2, jade 2, nano titanium oxide 1, Starso 2, Silane coupling agent KH550 2, dimethyl silicone oil 1, calcium stearate 1, morpholine 1; Preparation method adds kaolin, attapulgite in 12-15% hydrochloric acid soln and soaks 3-4 hour, takes out, and with clear water, cleans, and calcines 3-4 hour with sending in calcining furnace at 530-550 ℃, cooling, merges and grinds to form 300-400 order powder with jade; Add aluminium nitride, Sodium dodecylbenzene sulfonate, nano titanium oxide, Starso to continue grinding distribution 2-3 hour, then add other remaining component to be ground to fully to disperse to obtain 300-400 order powder, obtain.

Wiring board anti-corrosion primer of the present invention, by following concrete steps, made:

(1) E-12 epoxy resin, unsaturated polyester, zeolite powder, dimethylbenzene, cyclohexanone, titanium dioxide, talcum powder, tripolyphosphate ammonium are added in reactor and stirred, temperature of reaction is controlled at below 40-60 ℃, stirs 0.5-1 hour;

(2) in reactor, add thiol-butyl tin, sepiolite, vermiculite, antioxidant NBC, ethylene bis stearamide, diamino diphenyl sulfone, altax again, temperature of reaction is controlled at below 70-80 ℃, stirs 0.5-1 hour;

(3) finally add all the other remaining components, mix, stir, grind, obtain the slurry of 20-40 μ m, filter and get final product.

Product performance index of the present invention:

1, snappiness mm≤1

2, hardness >=2H

3, high temperature resistant (130 ℃) >=490h

4, shock-resistance 50

5, salt spray resistance (120h level) >=3

6, water tolerance (29 ± 1 ℃ of 240h): non-foaming, do not come off

7, oil resistant (90# gasoline, 56h): non-foaming, do not come off

8, alkali resistance (GB/T9755-2001): by 48 hours

9, artificial weathering ageing resistance (GB/T9755-2001): by 1200 hours.

Claims (2)

1. a wiring board anti-corrosion primer, it is characterized in that, by the raw material of following weight part, made: E-12 epoxy resin 40-45, unsaturated polyester 15-20, zeolite powder 3-4, dimethylbenzene 7-9, cyclohexanone 5-6, titanium dioxide 2-3, talcum powder 1-2, tripolyphosphate ammonium 3-4, thiol-butyl tin 1-2, sepiolite 12-14, vermiculite 16-19, antioxidant NBC 1-2, ethylene bis stearamide 2-3, diamino diphenyl sulfone 10-14, altax 3-4, vinyltriethoxysilane 2-3, antimonous oxide 3-5, Sodium Benzoate 1-2, dispersing auxiliary 3-4;

Described dispersing auxiliary makes by the following method: the weight part of its each feed composition is: kaolin 200-210, attapulgite 30-40, aluminium nitride 1-2, Sodium dodecylbenzene sulfonate 2-3, jade 2-3, nano titanium oxide 1-2, Starso 2-3, Silane coupling agent KH550 2-3, dimethyl silicone oil 1-2, calcium stearate 1-2, morpholine 1-2; Preparation method adds kaolin, attapulgite in 12-15% hydrochloric acid soln and soaks 3-4 hour, takes out, and with clear water, cleans, and calcines 3-4 hour with sending in calcining furnace at 530-550 ℃, cooling, merges and grinds to form 300-400 order powder with jade; Add aluminium nitride, Sodium dodecylbenzene sulfonate, nano titanium oxide, Starso to continue grinding distribution 2-3 hour, then add other remaining component to be ground to fully to disperse to obtain 300-400 order powder, obtain.

2. wiring board anti-corrosion primer according to claim 1, is characterized in that, by following concrete steps, is made:

(1) E-12 epoxy resin, unsaturated polyester, zeolite powder, dimethylbenzene, cyclohexanone, titanium dioxide, talcum powder, tripolyphosphate ammonium are added in reactor and stirred, temperature of reaction is controlled at below 40-60 ℃, stirs 0.5-1 hour;

(2) in reactor, add thiol-butyl tin, sepiolite, vermiculite, antioxidant NBC, ethylene bis stearamide, diamino diphenyl sulfone, altax again, temperature of reaction is controlled at below 70-80 ℃, stirs 0.5-1 hour;

(3) finally add all the other remaining components, mix, stir, grind, obtain the slurry of 20-40 μ m, filter and get final product.