CN101343505A - Preparation method for fire resistant environment-friendly varnished wire hot melt self-adhering paint - Google Patents

Preparation method for fire resistant environment-friendly varnished wire hot melt self-adhering paint Download PDF

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Publication number
CN101343505A
CN101343505A CNA2008101461851A CN200810146185A CN101343505A CN 101343505 A CN101343505 A CN 101343505A CN A2008101461851 A CNA2008101461851 A CN A2008101461851A CN 200810146185 A CN200810146185 A CN 200810146185A CN 101343505 A CN101343505 A CN 101343505A
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fire resistant
resistant environment
hot melt
preparation
parts
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CNA2008101461851A
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CN101343505B (en
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王成宜
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Shenzhen Guangnan Electronic Co ltd
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LIYANG JIASHAN ELECTRONIC MATERIAL CO Ltd
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Abstract

The invention discloses a preparation method of a high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint, in the mixed solvent taking dimethyl benzene, cresol and butanol as solvent, the the high temperature resistant environment-protecting type enamel insulated wire heat-melting self-adhered paint which meets the requirement of the heat resistant condition the temperature of which is over 180 DEG C is made by the reaction of raw materials such as nylon 12, epoxy resin, organic silicone resin and leveling agent, lubrication prescription and acidification preventing agent added in sequence, the manufactured product has the advantages of good application adaptability, smooth and clean product, easy mould release, heat resistance, even adhesive force and deformation resistance.

Description

The preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint
Technical field
The present invention relates to a kind of wire enamel preparation method, especially a kind of varnished wire hot melt self-adhering paint preparation method.
Background technology
Enameled wire self-adhesion lacquer is the novel kind in the wire enamel, because the specific function of itself, be widely used in the manufacturing of various exoskeletal (or special-shaped) coil wire rod, as: the manufacturing of colour television set deflector coil (DY coil), electronic watch coil, mobile phone vibrating motor, various voice coil loudspeaker voice coil, electromagnetic stove ruhmkorff coil and various flat special machines coils etc.
Enameled wire self-adhesion lacquer mainly is divided into hot melt self-adhering paint and pure soluble self-adhering lacquer, is a kind of important electrical insulating material that meets the environmental protection and energy saving requirement.Be mainly used in the skin that is coated in the not collinear footpath of all kinds enameled wire.Generally be after conductor insulation coating, to be coated with certain thickness self-adhesion enamelled coating again with enamelling machine to cure through high temperature and form.The self-adhesion enamelled coating has following characteristic: can make formed coil bonding voluntarily after certain thermal resistance (or hot blast), solvent are soaked into, and can keep formed coil to bear certain thermal load or machinery, chemistry, electrical load, make goods keep good size shape.
At present, it is heat-resisting that the enameled wire self-adhesion lacquer (hot melt or solvent bonding) on the market is generally B~F level, is difficult to satisfy performance requriements under 〉=180 ℃ of temperature.This class lacquer major ingredient has PVB (polyvinyl butyral acetal), general aliphatics PA (polymeric amide), has following defective equally:
1, thermotolerance is low, generally 155 ℃ of heat-resisting uses down, is difficult to satisfy heat-resisting conditional request more than 180 ℃;
2, the solvent apolegamy does not take into full account environmental requirement, and peculiar smell is big, and the goods dissolvent residual is many;
3, reaction process complexity, finished product are used and are used technology to be difficult to grasp, and stability is poor, and consistence is poor, and the storage cycle is short;
4, bond strength is low, and is particularly poorer under the hot conditions;
5, fail to take into full account post-order process application requiring (as demoulding etc.), goods are yielding.
Summary of the invention
The objective of the invention is to overcome above deficiency, a kind of preparation method who satisfies the fire resistant environment-friendly varnished wire hot melt self-adhering paint of heat-resisting conditional request more than 180 ℃ is provided, produce the requirement that high-quality coil is made to satisfy.
The object of the present invention is achieved like this:
The preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint of the present invention comprises following processing step:
Step a, in molar ratio, 263~345 parts of dimethylbenzene, 346~526 parts in cresols, 87~174 parts of addings of butanols are had in the reactor of agitator and mix as solvent, when being heated to 60~75 ℃, the mode that progressively evenly feeds intake in the employing dropped into 80~120 parts of nylon 12 in solvent in 0.4~0.6 hour, and be stirred and heated to 115~125 ℃ simultaneously, be incubated 2 hours, get work in-process A;
Step b, when work in-process A is cooled to 75~85 ℃, drop into 15~20 parts of Resins, epoxy, be incubated 1.5~2 hours, cool to 65~75 ℃ again, add 6~12 parts of silicone resins then, be incubated 0.5~1 hour, add 0.5~1.0 part of 0.3~0.7 part of flow agent, lubrication prescription again and stir, obtain product B;
Step c cools to 55~65 ℃ with the said products B, drops into 1~2 part of acidifying and prevents from agent and continue to stir 0.5~1 hour, obtains products C;
Steps d obtains fire resistant environment-friendly varnished wire self-adhesion lacquer after filtration with the said products C.
Further, described cresols is meta-cresol.
Further, described agitator is to have reflux.
Further, described nylon 12 is the pure molten nylon of fusing point 〉=175 ℃.
Further, described flow agent is polyether-modified polyoxymethylene siloxanes.
Further, described lubrication prescription is a synthetic macromolecule wax.
Further, described acidifying prevents that agent from being the monothioester kind antioxidant.
Owing to adopted technique scheme, select for use high-quality dimethylbenzene, special cresols, butanols mixture as mixed solvent, avoided the generation of solvent peculiar smell, give use good adaptability, meet the RoHS of European Union environmental protection command request; Select the composite resistance toheat that has significantly improved this lacquer of Resins, epoxy and silicone resin for use, and have good synthesising stability, the reaction process no coupling product produces, smooth production process, and good product consistency, technological operation is easy, the product qualified rate height; Since adopted various functional type auxiliary agents such as lubrication prescription, flow agent, and the acidifying of resistant to thermal aging prevent agent, given goods good application adaptability, bright and clean, the easy demoulding of finished product, heat-resisting, cohesive force is even, anti-distortion.
After testing, heat resistant environmental-friendly self-adhesion lacquer product physical and chemical index manufactured according to the present invention is as follows:
A, outward appearance: as clear as crystal, there is not mechanical impurity, homogeneous, liquid;
B, viscosity: 100-2000mpa.s (30 ℃/rotational viscosimeter);
C, contain admittedly: 8-18% (180 ℃/1g/1h).
Embodiment
Below by embodiment the present invention is further described.
Embodiment 1:
In molar ratio, in the reactor that has agitator and return line, add 526 parts of meta-cresols, 263 parts of dimethylbenzene, 87 parts in butanols, begin when reinforced turn on agitator simultaneously, has thrown and heated after expecting, when treating that temperature reaches 65 ℃, in 0.5 hour, progressively drop into 100 parts of nylon 12 equably, stirring heating kept 115 ℃ of temperature 2 hours simultaneously, got work in-process A; Work in-process A cooling then, temperature is controlled at 75 ℃, add 18 parts of Resins, epoxy, kept 75 ℃ of temperature 1.5 hours, cool to 65 ℃ again, add 6 parts of organosilicons, keep 65 ℃ of temperature after 0.5 hour, drop into 0.3 part of polyether-modified polyoxymethylene siloxanes, 0.5 part of macromolecule wax and stir, obtain product B; Product B is cooled to 55 ℃ again, drop into 1 part of acidifying and prevent the two stearyl alcohol esters of agent thio-2 acid, keep 55 ℃ of temperature and continue stirring 0.5 hour, obtain products C; The products C filtration is made the finished product fire resistant environment-friendly varnished wire hot melt self-adhering paint.
Embodiment 2:
In molar ratio, in the reactor that has agitator and return line, add 500 parts of meta-cresols, 345 parts of dimethylbenzene, 100 parts in butanols, begin when reinforced turn on agitator simultaneously, has thrown and heated after expecting, when treating that temperature reaches 70 ℃, in 0.4 hour, progressively drop into 80 parts of nylon 12 equably, stirring heating kept 120 ℃ of temperature 2 hours simultaneously, got work in-process A; Work in-process A cooling then, temperature is controlled at 80 ℃, add 15 parts of Resins, epoxy, kept 80 ℃ of temperature 1.8 hours, cool to 70 ℃ again, add 8 parts of organosilicons, keep 70 ℃ of temperature after 0.6 hour, drop into 0.5 part of polyether-modified polyoxymethylene siloxanes, 0.7 part of macromolecule wax and stir, obtain product B; Product B is cooled to 60 ℃ again, drop into 1.5 parts of acidifyings and prevent the two lauryl alcohol esters of agent thio-2 acid, keep 55 ℃ of temperature and continue stirring 0.6 hour, obtain products C; The products C filtration is made the finished product fire resistant environment-friendly varnished wire hot melt self-adhering paint.
Embodiment 3:
In molar ratio, in the reactor that has agitator and return line, add 346 parts of meta-cresols, 300 parts of dimethylbenzene, 174 parts in butanols, begin when reinforced turn on agitator simultaneously, has thrown and heated after expecting, when treating that temperature reaches 75 ℃, in 0.6 hour, progressively drop into 120 parts of nylon 12 equably, stirring heating kept 125 ℃ of temperature 2 hours simultaneously, got work in-process A; Work in-process A cooling then, temperature is controlled at 85 ℃, add 20 parts of Resins, epoxy, kept 85 ℃ of temperature 2 hours, cool to 75 ℃ again, add 12 parts of organosilicons, keep 75 ℃ of temperature after 1 hour, drop into 0.7 part of polyether-modified polyoxymethylene siloxanes, 1 part of macromolecule wax and stir, obtain product B; Product B is cooled to 65 ℃ again, drop into 2 parts of acidifyings and prevent the two tetradecyl alcohol esters of agent thio-2 acid, keep 65 ℃ of temperature and continue stirring 1 hour, obtain products C; The products C filtration is made the finished product fire resistant environment-friendly varnished wire hot melt self-adhering paint.
Embodiment 4:
In molar ratio, in the reactor that has agitator and return line, add 450 parts of meta-cresols, 300 parts of dimethylbenzene, 135 parts in butanols, begin when reinforced turn on agitator simultaneously, has thrown and heated after expecting, when treating that temperature reaches 68 ℃, in 0.5 hour, progressively drop into 100 parts of nylon 12 equably, stirring heating kept 120 ℃ of temperature 2 hours simultaneously, got work in-process A; Work in-process A cooling then, temperature is controlled at 80 ℃, add 17 parts of Resins, epoxy, kept 80 ℃ of temperature 1.7 hours, cool to 70 ℃ again, add 10 parts of organosilicons, keep 70 ℃ of temperature after 0.8 hour, drop into 0.6 part of polyether-modified polyoxymethylene siloxanes, 0.8 part of macromolecule wax and stir, obtain product B; Product B is cooled to 60 ℃ again, drop into 1.6 parts of acidifyings and prevent the two isomerous tridecanol esters of agent thio-2 acid, keep 60 ℃ of temperature and continue stirring 0.8 hour, obtain products C; The products C filtration is made the finished product fire resistant environment-friendly varnished wire hot melt self-adhering paint.

Claims (8)

1, a kind of preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint is characterized in that comprising following processing step:
Step a, in molar ratio, 263~345 parts of dimethylbenzene, 346~526 parts in cresols, 87~174 parts of addings of butanols are had in the reactor of agitator and mix as solvent, when being heated to 60~75 ℃, the mode that progressively evenly feeds intake in the employing dropped into 80~120 parts of nylon 12 in solvent in 0.4~0.6 hour, and be stirred and heated to 115~125 ℃ simultaneously, be incubated 2 hours, get work in-process A;
Step b, when work in-process A is cooled to 75~85 ℃, drop into 15~20 parts of Resins, epoxy, be incubated 1.5~2 hours, cool to 65~75 ℃ again, add 6~12 parts of silicone resins then, be incubated 0.5~1 hour, add 0.5~1.0 part of 0.3~0.7 part of flow agent, lubrication prescription again and stir, obtain product B;
Step c cools to 55~65 ℃ with the said products B, drops into 1~2 part and high temperature acidifiedly prevents agent and continue to stir 0.5~1 hour, obtains products C;
Steps d obtains fire resistant environment-friendly varnished wire self-adhesion lacquer after filtration with the said products C.
2, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that described cresols is meta-cresol.
3, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that described agitator is to have reflux.
4, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that described nylon 12 is the pure molten nylon of fusing point 〉=175 ℃.
5, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that described flow agent is polyether-modified polyoxymethylene siloxanes.
6, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that described lubrication prescription is a synthetic macromolecule wax.
7, the preparation method of fire resistant environment-friendly varnished wire hot melt self-adhering paint according to claim 1 is characterized in that describedly high temperature acidifiedly preventing that agent from being the monothioester kind antioxidant.
8, according to any fire resistant environment-friendly varnished wire hot melt self-adhering paint that described method prepares in the claim 1 to 8.
CN2008101461851A 2008-08-08 2008-08-08 Preparation method for fire resistant environment-friendly varnished wire hot melt self-adhering paint Expired - Fee Related CN101343505B (en)

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Cited By (30)

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CN101891994A (en) * 2010-06-30 2010-11-24 溧阳市佳禾电子材料有限公司 Preparation method of heat resistant acetal wire enamel
CN103146299A (en) * 2013-03-29 2013-06-12 溧阳市佳禾电子材料有限公司 Wet bonding resistant alcohol soluble self-bonded paint and preparation method thereof
CN103468131A (en) * 2013-09-22 2013-12-25 江苏华夏制漆科技有限公司 Salt-fog-resistant and high-temperature-resistant paint and preparation method thereof
CN103666193A (en) * 2013-11-25 2014-03-26 铜陵天河特种电磁线有限公司 Polyamide insulating paint for enameled wires and preparation method of polyamide insulating paint
CN103694873A (en) * 2013-11-27 2014-04-02 王传福 Alcohol soluble self-adhesive wire enamel with heat resistant index of 155 DEG C (grade F) and preparation method thereof
CN103694847A (en) * 2013-12-04 2014-04-02 铜陵三佳变压器有限责任公司 Wire enamel for copper-clad aluminum for transformer and preparation method thereof
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CN108727973A (en) * 2018-06-27 2018-11-02 溧阳市佳禾电子材料有限公司 A kind of high heat-resisting hot blast adhesion type hot melt self-adhering paint and preparation method thereof

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CN106893446A (en) * 2015-12-17 2017-06-27 中国科学院金属研究所 A kind of epoxy radicals wear resistant and impact resistant anticorrosive paint and preparation method without inorganic matter
CN106893446B (en) * 2015-12-17 2019-08-16 中国科学院金属研究所 A kind of epoxy group wear resistant and impact resistant anticorrosive paint and preparation method without inorganic matter
CN108727973A (en) * 2018-06-27 2018-11-02 溧阳市佳禾电子材料有限公司 A kind of high heat-resisting hot blast adhesion type hot melt self-adhering paint and preparation method thereof

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