CN101633825B - Preparation method of aqueous constant-resistance current-carrying heating liquid glue - Google Patents
Preparation method of aqueous constant-resistance current-carrying heating liquid glue Download PDFInfo
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- CN101633825B CN101633825B CN 200810012411 CN200810012411A CN101633825B CN 101633825 B CN101633825 B CN 101633825B CN 200810012411 CN200810012411 CN 200810012411 CN 200810012411 A CN200810012411 A CN 200810012411A CN 101633825 B CN101633825 B CN 101633825B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 title claims abstract description 8
- 239000003292 glue Substances 0.000 title claims abstract description 6
- 238000002360 preparation method Methods 0.000 title claims abstract description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 31
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229920002401 polyacrylamide Polymers 0.000 claims abstract description 14
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 10
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 10
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 26
- 239000000839 emulsion Substances 0.000 claims description 13
- 229920003009 polyurethane dispersion Polymers 0.000 claims description 12
- 229920000178 Acrylic resin Polymers 0.000 claims description 11
- 239000004925 Acrylic resin Substances 0.000 claims description 11
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 11
- 239000001103 potassium chloride Substances 0.000 claims description 11
- 235000011164 potassium chloride Nutrition 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 14
- 239000000843 powder Substances 0.000 abstract description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000000227 grinding Methods 0.000 abstract description 6
- 229920002635 polyurethane Polymers 0.000 abstract description 4
- 239000004814 polyurethane Substances 0.000 abstract description 4
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000001816 cooling Methods 0.000 abstract description 2
- 239000004816 latex Substances 0.000 abstract 2
- 229920000126 latex Polymers 0.000 abstract 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 239000012467 final product Substances 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 2
- QQONPFPTGQHPMA-UHFFFAOYSA-N Propene Chemical compound CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002305 electric material Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000002657 fibrous material Substances 0.000 description 2
- 239000013505 freshwater Substances 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 229920002125 Sokalan® Polymers 0.000 description 1
- 239000003125 aqueous solvent Substances 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 238000004581 coalescence Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- XLJMAIOERFSOGZ-UHFFFAOYSA-M cyanate Chemical compound [O-]C#N XLJMAIOERFSOGZ-UHFFFAOYSA-M 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000007720 emulsion polymerization reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000032050 esterification Effects 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000010559 graft polymerization reaction Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000001935 peptisation Methods 0.000 description 1
- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses aqueous constant-resistance current-carrying heating liquid glue and a preparation method thereof. The method is characterized by comprising the following steps: selecting proper carbon powders ground into 20 to 40 nanoscale; adding water into the carbon powders and stirring the mixture till evenness to form carbon powder latex; according to the proportion of 10 weight percent of the carbon powder, adding polyvinyl alcohol resin to the latex; grinding the powders; continuously stirring the powders; simultaneously, heating the powders to a temperature of 160 DEG C; adding polyacrylamide potassium and hydrolyzed polyacrylonitrile with amount of 2 to 4 percent of the gross amount of the carbon powder; continuously stirring the powders till evenness; subsequently, cooling the powders to room temperature; simultaneously, adding 5 to 7 percent of aqueous crylic acid resin powders and an aqueous polyurethane dispersoid; and continuously stirring the powders till all solutes are evenly mixed. After the method is realized, compared with the prior art, the method has the following advantages that: (1) the method has no environmental pollution in the production and using process; (2) a final product, namely a heating body produced by the method has constant resistance value, stable performance and long service life; and (3) the method has a simple process and low production cost.
Description
Technical field
The present invention relates to a kind of liquid thermo electric material, is exactly a kind of aqueous constant-resistance current-carrying heating liquid glue and preparation method thereof.
Background technology
Existing more common liquid thermo electric material is mainly oiliness current-carrying sol.This material is take thinner as solvent, take carbon dust as the current-carrying material, mix take matrix material as assistant agent.Because thinner belongs to oily matter, therefore be referred to as oiliness current-carrying sol.In application process, it can be coated with on the surface that invests carrier, after it is solid, namely can be made into electric heating element.Said carrier comprises the natural fiber materials such as the line, net of cotton, or the chemical fibre material such as nylon wire, rope, net, or the metalliferous materials such as wire and cloth thereof.Etc..Take thinner as solvent, therefore, there is following problems unavoidably in it in production and use procedure due to existing oiliness current-carrying sol: the obnoxious flavour that 1, externally volatilizees, cause environmental pollution, and give the producer and the healthy disadvantageous effect of bringing of user; 2, in application process, the impregnability of this oiliness current-carrying sol is relatively poor, is difficult for being coated on equably on its carrier, thereby is difficult for forming stable resistance, is difficult to guarantee the use properties of product.
Summary of the invention
The objective of the invention is for people provide a kind of environmentally safe, impregnability is aqueous constant-resistance current-carrying heating liquid glue and preparation method thereof preferably, in order to solve the problems referred to above that prior art exists.
The object of the present invention is achieved like this, gets the carbon dust that is ground to the 20-40 Nano grade appropriate, adds water and be stirred to evenly, makes it to form the carbon dust emulsion; Ratio in carbon dust weight 10% adds polyvinyl alcohol resin to grind pulvis, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of carbon dust total amount 2-4%, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 5-7% continue to be stirred to all solutes and evenly only mix.
Because the present invention has used aqueous solvent, so it compared with prior art has following advantage: 1, environmentally safe in production and use procedure is harmless to the person; 2, use, its impregnability and tackiness are stronger, make the finished product that adopt the present invention to produce be that heating element has resistance constant, stable performance, the outstanding feature of long service life; 3. work simplification of the present invention, production cost is lower, and production efficiency is higher.
Embodiment
One, the physicochemical property of raw materials for production and source thereof
1. polyvinyl alcohol resin
The polyvinyl alcohol resin series product are white solid, and that profile is divided into is cotton-shaped, three kinds of particulate state, powdery.Nonpoisonous and tasteless, pollution-free, can dissolve in the water of 80-90 ℃.Its aqueous solution has good cohesiveness and film-forming properties; Most of organic solvents such as oil resistant class, lubricant and hydro carbons; Have the chemical properties such as long-chain polyhydric alcohol esterification, etherificate, acetalation.Usually market can be purchased.
2. polyacrylamide sylvite
Polyacrylamide sylvite is the multipolymer of a kind of partially hydrolyzed polyacrylamide-polyacrylamide sylvite.It has very strong shale restraining effect, therefore except as thickening material and coating agent, also can be used for shale control agent.Polyacrylamide sylvite dissolves in fresh water, salt water and salt solution, often uses with the aqueous solution form of 0.5-1.0%, and its heat-resisting property can reach 160-180 ℃.Market can be purchased.
3. hydrolyzed polyacrylonitrile
Hydrolyzed polyacrylonitrile another name fluid loss agent is the free-pouring powder of a kind of energy or particle, and is soluble in water, easily absorbs water into piece in air, but do not affect its performance.It is good water retaining, can the decrease dehydration and viscosity effect is very little.Deflocculation is little, can be used in conjunction with PHP, can make the water retaining of low solids non-dispersed polymer mud.Heat stability is good can be made the high temperature water retaining, and in fresh water, heatproof can reach 250 ℃.Market can be purchased.
4. the acrylic resin that contains abundant polar group or ion in water-borne acrylic resin main chain and side chain and can be water-soluble.Mainly comprise polyacrylamide that polyacrylic acid, polyacrylamide and some N-replace, office's acrylate etc.Have the character of general water-soluble polymer, mainly contain: tackifying.It is a lot of that a small amount of water molecules can make the viscosity of water increase; Adsorptivity.Easily the solia particle in planar water, easily adsorbed by other solid surface, once, good throwing out arranged; Conduction and ion exchangeable.Water soluble acrylic resin with ion has this character; Effect with metal ion.Polar group can form inner complex with metal ion.The quenchable water soluble propene's resin of method, reversed emulsion polymerization or graft polymerization method with general synthetic macromolecule.Also can some invade whose acrylic monomer or contain q.s wetting ability acrylic monomer and the mixture of acrylate and other monomers, carry out polymerization take water as solvent, directly make the aqueous solution of acrylic resin.Market can be purchased.
5. aqueous polyurethane dispersion
Aqueous polyurethane dispersion is the polyurethane particles that a class is dispersed in water swelling, and granularity mostly is greatly the 0.01-0.5 micron, less than acrylic emulsions.At present, aqueous polyurethane dispersion has anionic, cationic and non-ionic type three types.Mostly use anionic polyurethane dispersion topic in coatings industry.Be characterized in single component, the epidemic disease cyanate of being sure not to dissociate is nontoxic.Room temperature film-forming does not need to add film coalescence aid, therefore can make volatile organic matter (VOC) content in system be 0, has use safety, the advantages such as non-environmental-pollution.Aqueous polyurethane also has good leveling property, strong covering power, and adhere firmly, coating is cold-resistant, heat-resisting characteristics.Although the aqueous polyurethane dispersion relative molecular weight is very high, viscosity is lower, with processing, and easy construction, its mechanical property may with solvent borne polyurethane than beautiful, have outstanding hardness, wear resistance and chemical-resistant.Market can be purchased.
Two, in technical solution of the present invention, relevant word is explained
" get the carbon dust that is ground to the 20-40 Nano grade appropriate ", wherein the implication of " in right amount " word is according to equipment capacity and single turnout situation, the input amount of pre-determined carbon dust.
Three, production instance of the present invention
(1) get the carbon dust 100kg that is ground to the 20-40 Nano grade, add water and be stirred to evenly, make it to form the carbon dust emulsion; Getting polyvinyl alcohol resin grinding pulvis 10kg adds in the carbon dust emulsion, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of 2kg, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 7kg continue to be stirred to all solutes and evenly only mix.
(2) get the carbon dust 100kg that is ground to the 20-40 Nano grade, add water and be stirred to evenly, make it to form the carbon dust emulsion; Getting polyvinyl alcohol resin grinding pulvis 10kg adds in the carbon dust emulsion, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of 4kg, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 5kg continue to be stirred to all solutes and evenly only mix.
(3) get the carbon dust 100kg that is ground to the 20-40 Nano grade, add water and be stirred to evenly, make it to form the carbon dust emulsion; Getting polyvinyl alcohol resin grinding pulvis 10kg adds in the carbon dust emulsion, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of 3kg, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 6kg continue to be stirred to all solutes and evenly only mix.
(4) get the carbon dust 100kg that is ground to the 20-40 Nano grade, add water and be stirred to evenly, make it to form the carbon dust emulsion; Getting polyvinyl alcohol resin grinding pulvis 10kg adds in the carbon dust emulsion, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of 2kg, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 5kg continue to be stirred to all solutes and evenly only mix.
(5) get the carbon dust 100kg that is ground to the 20-40 Nano grade, add water and be stirred to evenly, make it to form the carbon dust emulsion; Getting polyvinyl alcohol resin grinding pulvis 10kg adds in the carbon dust emulsion, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of 4kg, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 7kg continue to be stirred to all solutes and evenly only mix.
Four, application example of the present invention
(1) at first, the present invention is heated to 80 ℃; Then, it is canned in previously prepared hanging container; Again, making carrier of the present invention is the natural fiber material such as line, net of cotton, or the chemical fibre material such as nylon wire, rope, net, or metalliferous materials such as wire and cloth thereof etc. pass through in the hanging device of hanging container, make it to soak or the application mode carries the present invention; At last, through cooling, dry, make the heating element finished product.
Should illustrate, in actual applications, the thickness of hanging layer depends on the specific performance requirement of heating element.
(2) under normal temperature condition, the present invention directly is coated on the surface of the materials such as non-woven fabrics or wallpaper, coat-thickness is 0.1-0.2mm, after drying, can be used as electromagnetic shielding material.
Claims (1)
1. the preparation method of an aqueous constant-resistance current-carrying heating liquid glue, is characterized in that: get the carbon dust that is ground to the 20-40 Nano grade appropriate, add water and be stirred to evenly, make it to form the carbon dust emulsion; Ratio in carbon dust weight 10% adds polyvinyl alcohol resin to grind pulvis, continue to stir, be heated to simultaneously 160 ℃ and add polyacrylamide sylvite and the hydrolyzed polyacrylonitrile of carbon dust total amount 2-4%, continue to be stirred to evenly, be cooled to subsequently room temperature, the water-borne acrylic resin pulvis and the aqueous polyurethane dispersion that add simultaneously 5-7% continue to be stirred to all solutes and evenly only mix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810012411 CN101633825B (en) | 2008-07-22 | 2008-07-22 | Preparation method of aqueous constant-resistance current-carrying heating liquid glue |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810012411 CN101633825B (en) | 2008-07-22 | 2008-07-22 | Preparation method of aqueous constant-resistance current-carrying heating liquid glue |
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| Publication Number | Publication Date |
|---|---|
| CN101633825A CN101633825A (en) | 2010-01-27 |
| CN101633825B true CN101633825B (en) | 2013-11-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810012411 Active CN101633825B (en) | 2008-07-22 | 2008-07-22 | Preparation method of aqueous constant-resistance current-carrying heating liquid glue |
Country Status (1)
| Country | Link |
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| CN (1) | CN101633825B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444183A (en) * | 1965-09-22 | 1969-05-13 | Du Pont | Film-forming composition |
| CN1414818A (en) * | 2002-09-27 | 2003-04-30 | 孟国军 | Nano graphite carbon composite electropyrexia material |
-
2008
- 2008-07-22 CN CN 200810012411 patent/CN101633825B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3444183A (en) * | 1965-09-22 | 1969-05-13 | Du Pont | Film-forming composition |
| CN1414818A (en) * | 2002-09-27 | 2003-04-30 | 孟国军 | Nano graphite carbon composite electropyrexia material |
Non-Patent Citations (2)
| Title |
|---|
| D.D.L Chung."Electromagnetic interference shielding effectiveness of carbon materials".《Carbon》.2001,第39卷(第2期),279-285. |
| 涂川俊等."复合型无机炭系电热涂料的研究".《炭素技术》.2006,第25卷(第5期),16-21. |
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| Publication number | Publication date |
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| CN101633825A (en) | 2010-01-27 |
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