Hot-melt three-proofing paint as well as preparation method and use method thereof

A conformal paint and hot-melt technology, applied in coatings, devices for coating liquids on the surface, etc., can solve problems such as coating solvent environmental pollution, and achieve the effects of cost saving, easy renovation, and safe and convenient use

Pending Publication Date: 2020-11-17
廖沛锟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above problems, the present invention provides a hot-melt conformal paint, which effectively solves the problem of environmental pollution caused by volatilization of coating solvents in the prior art, improves storage, Transport safety, and easy to use, without additional heating or light curing, improving the convenience of use

Method used

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  • Hot-melt three-proofing paint as well as preparation method and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing a hot-melt three anti-paint, comprising the following steps:

[0029] Step 1. Perform ring-opening reaction at 100° C. for 3 hours with succinic anhydride and polyethylene glycol in a molar ratio of 1:2.0;

[0030] Step 2, when the acid value of the detection system reaches the theoretical value, add 1.5 times the liquid epoxy resin and 3% n-butylammonium bromide catalyst of the molar number of succinic anhydride, and react at 120 ° C for 3.5 h, measure the acid value of the resin to below 5mgKOH / g, and cool down to obtain a toughening agent;

[0031] Step 3. Heating β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, C5 petroleum resin and polyethylene to melt respectively, and the melting temperature is 190°C;

[0032] Step 4, the melted β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, C5 petroleum resin, and polyethylene are respectively proportioned according to the dosage of 1%, 30%, 65% % mixed, and fully stirred, until th...

Embodiment 2

[0037] A method for preparing a hot-melt three anti-paint, comprising the following steps:

[0038] Step 1. Perform ring-opening reaction at 100° C. for 3 hours with succinic anhydride and polyethylene glycol in a molar ratio of 1:2.0;

[0039] Step 2, when the acid value of the detection system reaches the theoretical value, add 1.5 times the liquid epoxy resin and 3% n-butylammonium bromide catalyst of the molar number of succinic anhydride, and react at 120 ° C for 3.5 h, measure the acid value of the resin to below 5mgKOH / g, and cool down to obtain a toughening agent;

[0040] Step 3. Heating β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, polyα-methylstyrene resin, and polypropylene to melt respectively, and the melting temperature is 190°C ;

[0041] Step 4: Mix the melted β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, poly-α-methylstyrene resin, and polypropylene according to the proportion of 1% respectively , 30%, and 65% are mixed, and fully...

Embodiment 3

[0046] A method for preparing a hot-melt three anti-paint, comprising the following steps:

[0047] Step 1. Perform ring-opening reaction at 100° C. for 4 hours with succinic anhydride and polyethylene glycol in a molar ratio of 1:2.0;

[0048] Step 2, when the acid value of the detection system reaches the theoretical value, add 1.5 times the liquid epoxy resin and 5% n-butyl ammonium bromide catalyst of the molar number of succinic anhydride, and react at 100 ° C for 3.5 h, measure the acid value of the resin to below 5mgKOH / g, and cool down to obtain a toughening agent;

[0049] Step 3. Heating β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, C5 petroleum resin, and poly-1-butene to melting respectively, and the melting temperature is 190°C;

[0050] Step 4, the melted β-(3,5-di-tert-butyl-4-hydroxyphenyl) isooctyl propionate, C5 petroleum resin, and poly-1-butene are respectively proportioned according to the dosage of 2%, 27 %, 65% mixed, and fully stirred unt...

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Abstract

The invention provides hot-melt three-proofing paint as well as a preparation method and a use method thereof. The three-proofing paint is prepared from 1-3% of toner, 1-3% of antioxidant, 3-5% of flexibilizer, 20-30% of tackifier and 60-70% of polyolefin. The antioxidant is beta-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid isooctyl alcohol ester, the tackifier is one or more of C5 petroleumresin, poly alpha methyl styrene resin and hydrogenated terpene resin, and the polyolefin is one or more of polyethylene, polypropylene, poly-1-butene and poly-4-methyl-1-pentene. No solvent is addedinto the raw materials of the hot-melt three-proofing paint, and the hot-melt three-proofing paint is in a solid state during storage and transportation, so that potential safety hazards caused by solvent volatilization and leakage in the storage process are avoided, the problems of package swelling and damage caused by solvent volatilization due to temperature change in the storage process are also avoided, and the storage stability is high. In the using process, no solvent is volatilized, heating or ultraviolet irradiation auxiliary curing is not needed, and using is convenient, safe and environmentally friendly.

Description

technical field [0001] The invention belongs to the field of special coatings, and relates to a hot-melt conformal anti-paint and its preparation method and application method. Background technique [0002] Printed circuit board refers to the formation of point-to-point interconnection lines and printed components on an insulating substrate according to a predetermined design, and is a provider of electrical connections for electronic components. Circuit boards are very common in daily life, ranging from small mobile phones, USB flash drives, and cameras to high-end products such as aerospace and high-speed trains. With the increasing variety and quantity of electronic products, it is particularly important to strictly control the quality of circuit boards to improve the competitiveness of electronic products. In the actual application process, the use environment of the circuit board is complex and diverse, and may face humidity, high heat, salt spray, low temperature, vib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D123/06C09D123/12C09D123/20C09D7/48C09D7/65B05D7/24
CPCB05D7/24C08L2201/08C08L2205/03C09D123/06C09D123/12C09D123/20C09D7/48C09D7/65C08L57/02C08L87/005C08K5/1345C08L25/16C08K5/3435
Inventor 廖沛锟
Owner 廖沛锟
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