CN102392388B - Hydrophobic anti-static corrugated board coating and preparation method thereof - Google Patents
Hydrophobic anti-static corrugated board coating and preparation method thereof Download PDFInfo
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- CN102392388B CN102392388B CN201110349316.8A CN201110349316A CN102392388B CN 102392388 B CN102392388 B CN 102392388B CN 201110349316 A CN201110349316 A CN 201110349316A CN 102392388 B CN102392388 B CN 102392388B
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- conductive filler
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Abstract
The invention discloses a hydrophobic anti-static corrugated board coating and a preparation method thereof. The particular method is as follows: conductive graphite and black carbon are mixed according to proportion so as to be taken as a conductive filler, and the hydrophobic anti-static corrugated board is particularly formed by water-solubility film forming resin, an assistant, mixed solution, the conductive filler and an adjuvant. The process for preparing the coating is as follows: firstly, drying the conductive filler, controlling the temperature of the conductive filler to be at the temperature of 75-95 DEG C; secondly, mixing the dried conductive filler with solution added with a dispersing agent and an auxiliary film forming object to form a primary mixing object; and thirdly, mixing the primary mixing object with the conductive filler, then adding the film forming resin and other adjuvant into the mixture, stirring the mixture for 10-30minutes by an electric stirrer so as to obtain the anti-static coating. For the prepared coating, the surface resistivity can be regulated in the range of 103-1010Omega, the preparation process is simple and easy to implement, the construction is convenient, the cost is lower, and the environmental protection requirement can be met.
Description
Technical field
The present invention is about a kind of hydrophobic anti-static corrugated board coating and preparation method thereof.
Background field
Static discharge (ESD) phenomenon is to cause electronic product to damage in storage and transport process or the one of the main reasons of service life impairment.All dissipation of static charge or shielding parts safely of passing through, energy limit static accumulation maybe can be avoided the material of exterior static charge affects, all can be used as electrostatic discharge protective packaging material.Electrostatic defending packaging market expanding day in recent years, but packaging material form is very single, adopt electrostatic prevention plastic pocket as inner packing, then are current main packaged forms with carton or plastic box as transportation and packing, but for the protective packaging of big-and-middle-sized product and be not suitable for, and cost is high, complicated operation.Once develop that the corrugated board of electrostatic function is led in new possessing, carton has great construction value, its industrialization prospect is very wide simultaneously.The key technology of electrostatic defending type corrugated board carton is that traditional tile corrugated paper board is carried out modification or corrugated case structure is carried out to Functional Design and innovation, such as paper pulp is carried out to preliminary treatment, meet or paperboard surface is applied with other functional materials, wherein surperficial coated with conductive coating is convenient and swift, and cost is lower.
Existing electrically-conducting paint great majority are solvent based coating; serious to Environment pollution; along with the reinforcement of environmental consciousness; people more and more start to pay close attention to the electrically-conducting paint of environmental protection, and its prime advantage is the organic solvent of eliminating or substantially having eliminated use in general coating inflammable, explosive and be unfavorable for environmental protection.
Summary of the invention
The object of the invention is to the problem for solvent contamination environment in prior art, provide that a kind of anti-static effect is good, surface resistivity condition and range is large, with low cost, be applicable to property electrostatic prevented corrugated paper plate coating of large-scale industrial production and preparation method thereof.
Hydrophobic anti-static corrugated board coating in the present invention, comprises following component, and the ratio of each component is all counted by weight, wherein:
Get 20～30 parts, waterborne film-forming fat, 0.2～0.45 part of auxiliary film forming matter, mixed solution 25-35 part, 5～17.5 parts of conductive fillers, 0.1～0.2 part of defoamer, 0.2～0.5 part of dispersant, 0～0.3 part of thickener, 0～0.3 part of modifier.
Described waterborne film-forming resin is water soluble acrylic resin.
Described auxiliary film forming matter is methylcellulose or carboxymethyl cellulose.
Described conductive filler is the mixture of electrically conductive graphite and carbon black, and wherein electrically conductive graphite mixes by weight with carbon black at 4: 1.
Described mixed solution is the mixture of water and alcohol, and wherein alcohol is isopropyl alcohol, n-butanol or ethanol.
Hydrophobic anti-static corrugated board coating in the present invention adopts following processing step:
(1) conductive filler is dried, the temperature of oven dry is controlled at 75～95 DEG C;
(2) there is the mixed solution of dispersant and auxiliary film forming matter to be mixed to form just mixed thing with having added the conductive filler of oven dry;
(3) in above-mentioned just mixed thing, add successively waterborne film-forming resin, defoamer, under electric blender, speed change stirs and within 10～30 minutes, obtains anti-static coatings.
Increase defoamer in step (3) after, thickener and/or modifier are also increased.
In step (1), conductive filler is placed in to drying box to constant weight.
Beneficial effect of the present invention is:
1) conductive filler is graphite, black stock, and it is mixed by a certain percentage and can make the conductive structure of coating finer and close, forms good interlayer UNICOM structure, and conductive channel is more smooth and easy, thereby reduces the resistivity of coating.
2) utilize the mix proportion scheme in the present invention, the coating surface resistivity making can be 10
3-10
10within the scope of Ω, regulate.
3) preparation is simple, easy construction, cost are lower, meets environmental requirement.
Detailed description of the invention
Below specific embodiments of the invention are described in further detail.
Example 1:
Hydrophobic anti-static corrugated board coating in the present embodiment one is mixed by weight each component of mixing by following:
The preparation method of electrostatic prevented corrugated paper plate:
(1) be to mix at 1: 4 to be placed in drying box by weight by carbon black, graphite, and be dried to constant weight at 75～80 DEG C, make conductive filler;
(2) water and isopropyl alcohol were mixed by weight 4: 1, form mixed solution;
(3) sodium carboxymethylcellulose, dispersant and mixed solution are fully stirred and form just mixed thing;
(4) will just mix thing mixes with conductive filler, then add water soluble acrylic resin, defoamer and thickener, stir 20 minutes in the lower speed change of electric blender (model of electric blender can be selected JB200-S), obtain anti-static coatings;
(5) anti-static coatings is brushed in corrugated board and made electrostatic prevented corrugated paper plate.
The surface resistivity of the electrostatic prevented corrugated paper plate of being prepared by above-described embodiment one reaches 10
10Ω, according to GJB/Z86-97 classification, (surface resistivity is equal to or greater than 10 to belong to static dissipative material
5Ω but be less than 10
12Ω, specific insulation is equal to or greater than 10
4Ω cm but be less than 10
11the material of Ω cm.), though the electrostatic charge of this material is significantly less than electrostatic conductor in its surperficial rate travel, when it is subject to rubbing, the electric charge that surface produces can spread faster and reveal.Because its resistivity is higher, can not cause material discharging, can be as transmitting in the environment of ESD protective packaging and the assembling of general static discharge sensing element (ESDS) production.
Embodiment 2:
Hydrophobic anti-static corrugated board coating in the present embodiment two is mixed by weight each component of mixing by following:
The preparation method of electrostatic prevented corrugated paper plate:
(1) be to mix at 1: 4 to be placed in drying box by weight by carbon black, graphite, and be dried to constant weight at 80～85 DEG C, form conductive filler;
(2) after water and isopropyl alcohol were mixed by weight 3: 2, form mixed solution;
(3) sodium carboxymethylcellulose, dispersant and mixed solution are fully stirred and form just mixed thing;
(4) will just mix thing mixes with conductive filler, then add water soluble acrylic resin, defoamer, thickener and modifier, stir 10 minutes in the lower speed change of electric blender (model of electric blender can be selected JB200-S), obtain anti-static coatings;
(5) anti-static coatings is brushed in corrugated board and made electrostatic prevented corrugated paper plate.
The electrostatic prevented corrugated paper plate surface resistivity of being prepared by embodiment bis-reaches 10
8Ω, according to GJB/Z86-97 classification, (surface resistivity is equal to or greater than 10 to belong to static dissipative material
5Ω but be less than 10
12Ω, specific insulation is equal to or greater than 10
4Ω cm but be less than 10
11the material of Ω cm.), though the electrostatic charge of this material is significantly less than electrostatic conductor in its surperficial rate travel, when it is subject to rubbing, the electric charge that surface produces can spread faster and reveal.Because its resistivity is higher, can not cause material discharging, can be as transmitting in the environment of ESD protective packaging and the assembling of general ESDS production.
Embodiment 3:
Hydrophobic anti-static corrugated board coating in the present embodiment three is mixed by weight each component of mixing by following:
The preparation method of electrostatic prevented corrugated paper plate:
(1) be to mix at 1: 4 to be placed in drying box by weight by carbon black, graphite, and be dried to constant weight at 85～90 DEG C, form conductive filler;
(2) be to mix at 5: 1 by weight by water and isopropyl alcohol, form mixed solution;
(3) sodium carboxymethylcellulose, dispersant and mixed solution are fully stirred and form just mixed thing;
(4) will just mix thing mixes with conductive filler, then add water soluble acrylic resin, defoamer, thickener and modifier, stir 25 minutes in the lower speed change of electric blender (model of electric blender can be selected JB200-S), obtain anti-static coatings;
(5) anti-static coatings is brushed in corrugated board and made electrostatic prevented corrugated paper plate.
The electrostatic prevented corrugated paper plate surface resistivity large 10 of preparation
6Ω, according to GJB/Z86-97 classification, (surface resistivity is equal to or greater than 10 to belong to static dissipative material
5Ω but be less than 10
12Ω, specific insulation is equal to or greater than 10
4Ω cm but be less than 10
11the material of Ω cm.), though the electrostatic charge of this material is significantly less than electrostatic conductor in its surperficial rate travel, when it is subject to rubbing, the electric charge that surface produces can spread faster and reveal.Because its resistivity is higher, can not cause material discharging, can be as transmitting in the environment of ESD protective packaging and the assembling of general ESDS production.
Embodiment 4:
The invention provides a kind of hydrophobic anti-static corrugated board coating and preparation method thereof, adopt following processing step: (component ratio is counted by weight)
The preparation method of electrostatic prevented corrugated paper plate:
Carbon black, graphite mix and are placed in drying box in 1: 4 ratio, at 90～95 DEG C down to constant weight.
Sodium carboxymethylcellulose, dispersant and mixed solution are fully stirred and form just mixed thing.
Above-mentioned just mixed thing is mixed with conductive filler, then add film-forming resin and other auxiliary agents, stir and within 30 minutes, obtain anti-static coatings in the lower speed change of electric blender (JB200-S).
Anti-static coatings is brushed in corrugated board and made electrostatic prevented corrugated paper plate.
The electrostatic prevented corrugated paper plate surface resistivity large 10 of preparation
3Ω, according to GJB/Z86-97 classification, (shielding material is the electric conductor that resistivity is very low, has surface resistivity and is equal to or less than 10 to belong to electromagnetic shielding material
4Ω, can be used for shielded radio frequency and low frequency electromagnetic field.) conventionally at the compound one deck static dissipative material of shielding material internal layer, this electrostatic dissipation composite with shield effectiveness not only can be made ESD protective packaging, can also be used for priming system packaging.
Claims (1)
1. a hydrophobic anti-static corrugated board coating, comprises following component, and the ratio of each component is all counted by weight, wherein:
20～30 parts of water intaking soluble acrylic resins, 0.2～0.45 part of auxiliary film forming matter, mixed solution 25-35 part of water and alcohol, 5～7.5 parts of conductive fillers, 0.1～0.2 part of defoamer, 0.3～0.5 part of dispersant, 0～0.3 part of thickener, 0～0.3 part of modifier, described conductive filler is the mixture of electrically conductive graphite and carbon black, wherein electrically conductive graphite mixes by weight 4:1 with carbon black.
2. hydrophobic anti-static corrugated board coating as claimed in claim 1, is characterized in that: described auxiliary film forming matter is methylcellulose or carboxymethyl cellulose.
3. hydrophobic anti-static corrugated board coating as claimed in claim 1, is characterized in that: the alcohol in the miscible fluid of described water and alcohol is isopropyl alcohol, n-butanol or ethanol.
4. hydrophobic anti-static corrugated board coating as claimed in claim 1, is characterized in that: adopt following processing step:
(1) conductive filler is dried, the temperature of oven dry is controlled at 75～95 DEG C;
(2) there are the water of dispersant and auxiliary film forming matter and the mixed solution of alcohol to be mixed to form just mixed thing with having added the conductive filler of oven dry;
(3) in above-mentioned just mixed thing, add successively water soluble acrylic resin, defoamer, under electric blender, speed change stirs and within 10～30 minutes, obtains anti-static coatings;
Increase defoamer in step (3) after, thickener and/or modifier are also increased.
5. hydrophobic anti-static corrugated board coating as claimed in claim 4, is characterized in that: in step (1), conductive filler is placed in to drying box to constant weight.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110349316.8A CN102392388B (en) | 2011-11-08 | 2011-11-08 | Hydrophobic anti-static corrugated board coating and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110349316.8A CN102392388B (en) | 2011-11-08 | 2011-11-08 | Hydrophobic anti-static corrugated board coating and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102392388A CN102392388A (en) | 2012-03-28 |
| CN102392388B true CN102392388B (en) | 2014-06-11 |
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| CN201110349316.8A Expired - Fee Related CN102392388B (en) | 2011-11-08 | 2011-11-08 | Hydrophobic anti-static corrugated board coating and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103483958B (en) * | 2013-09-25 | 2015-11-25 | 浙江天地塑业有限公司 | A kind of antistatic glue coated |
| CN105542593A (en) * | 2016-02-03 | 2016-05-04 | 滁州卷烟材料厂 | Anti-static corrugated carton |
| CN109267427A (en) * | 2018-09-04 | 2019-01-25 | 江苏星光新材料科技有限公司 | A kind of waterproof antistatic prevented corrugated paper plate coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1441012A (en) * | 2003-03-27 | 2003-09-10 | 南京熊猫电子股份有限公司 | Permanent antistatic paint and its prepn |
| CN1583909A (en) * | 2004-05-25 | 2005-02-23 | 熊猫电子集团有限公司 | Color permanent electrostatic resistant coating and preparing method thereof |
| CN101117498A (en) * | 2006-08-01 | 2008-02-06 | 天津市振东涂料有限公司 | Method for preparing antistatic acrylic coating |
| CN101418533A (en) * | 2008-12-08 | 2009-04-29 | 江南大学 | Electrostatic prevented corrugated paper plate coating and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10141707B4 (en) * | 2001-08-25 | 2008-07-24 | Chemetall Gmbh | Process for the antistatic coating of plastic molded parts surfaces, molded parts coated with plastic or / and varnish and use of the plastic and / or painted surfaces treated by the process |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1441012A (en) * | 2003-03-27 | 2003-09-10 | 南京熊猫电子股份有限公司 | Permanent antistatic paint and its prepn |
| CN1583909A (en) * | 2004-05-25 | 2005-02-23 | 熊猫电子集团有限公司 | Color permanent electrostatic resistant coating and preparing method thereof |
| CN101117498A (en) * | 2006-08-01 | 2008-02-06 | 天津市振东涂料有限公司 | Method for preparing antistatic acrylic coating |
| CN101418533A (en) * | 2008-12-08 | 2009-04-29 | 江南大学 | Electrostatic prevented corrugated paper plate coating and preparation method thereof |
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