CN1144847C - Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process - Google Patents
Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process Download PDFInfo
- Publication number
- CN1144847C CN1144847C CNB001127934A CN00112793A CN1144847C CN 1144847 C CN1144847 C CN 1144847C CN B001127934 A CNB001127934 A CN B001127934A CN 00112793 A CN00112793 A CN 00112793A CN 1144847 C CN1144847 C CN 1144847C
- Authority
- CN
- China
- Prior art keywords
- silver
- nonmetal
- plated powder
- powder
- electromagnetic screen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The present invention discloses paint which is manufactured by using nonmetal silver plated powder as conductive filler and can shield electromagnetic waves, and a manufacturing method thereof. The paint is compounded from nonmetal silver plated powder, thermoplastic acrylic resin and X-5 acrylic acid diluent, and the nonmetal silver plated powder is formed by the chemical silver plating of powdery nonmetals substances of at least 200 meshes. The paint of the present invention has the advantages of difficult sedimentation, low cost, easy processing, easy construction, unique method and strong applicability.
Description
One, technical field
The present invention relates to a kind of preparation method of coating, particularly a kind of is the preparation method of the coating of the energy shielding electromagnetic wave made of conductive filler material with nonmetal silver-plated powder.
Two, background technology
At present, conductive filler material majority as electromagnetic screen coating is the metal powder, and the metal powder has the drawback that density is big, be difficult for processing, this just causes in the electromagnetic screen coating construction process, the sedimentation of metal powder is fast, also must be equipped with the special agitating apparatus pressure-pot of water screw (as be equipped with) during spraying application and just can carry out normal construction.In order to obtain good electromagnetic shielding action, often add silver powder as conductive filler material, the silver powder price is high and be difficult for processing, has increased the electromagnetic screen coating cost greatly, has limited promoting the use of of this kind coating.
Three, summary of the invention
The objective of the invention is to be intended to overcome above-mentioned shortcoming, provide a kind of in the silver-plated preparation method who makes the electromagnetic screen coating of conductive filler material of nonmetal powder outside surface, this coating volume specific resistance be that the electromagnetic screen coating made of conductive filler material is approaching with silver powder, and free settling does not have low, the easy processing of cost, easy working characteristics.
The object of the present invention is achieved like this:
Composition of the present invention and weight percent thereof are:
Nonmetal silver-plated powder 10～50%
Thermoplastic acrylic resin 5～20%
X-5 acrylic diluents 30～85%
Wherein: nonmetal silver-plated powder is to be formed through chemical silvering by in the powdered silica micro mist more than at least 200 orders or glass micro mist or ceramic or other the similar nonmetallic substance powders one or more; Described thermoplastic acrylic resin is liquid, thermoplastic acrylic resin molecular-weight average 10,000～1.5 ten thousand, solids content 51 ± 2%.
Preparation method of the present invention is as follows:
In quantitative thermoplastic acrylic resin, add corresponding X-5 acrylic diluents by weight percentage, stirred 10 minutes with the high speed shear mulser, after mixing, add quantitative nonmetal silver-plated powder, in the high speed shear mulser, stirred 10 minutes, stir.
Goods of the present invention are silver gray, are the precipitation shape that suspends.
Thermoplastic acrylic resin of the present invention plays glue and connects nonmetal silver-plated powder and adhesion and be coated with the surface, and other similar resins can be realized purpose of the present invention equally.
Electromagnetic screen coating of the present invention can apply layer of conductive film at no electromagnet shield effect or the relatively poor material surface of electromagnetic shielding, makes it obtain the electromagnetic shielding ability that similar former complete machine metal is had, and can spray, and can brush; Coating should be stirred before the construction.
Technical indicator after this electromagnetic screen coating solidifies is as follows:
Color is silver grey
Appearance of coat is smooth evenly, no obvious scar and defective
Thickness 10-80 μ m
Damp and hot experiment qualified (by GJB GJB367.2-87)
Surface resistivity＜5 Ω (direct range 50CM mensuration)
Volume specific resistance＜1 * 10
-3Ω .CM
In the present invention, the X-5 acrylic diluents is a kind of commercially available prod, and its main component is that N-BUTYL ACETATE, ethanol etc. mix, and there is production in domestic a lot of producers, produces (1991 years) as Xibei (Northwest) Paint Factory.
The present invention is a conductive filler material with nonmetal powder chemical silvering, has that volume specific resistance is low, cost is low, be difficult for settled advantage.It is film-forming resin that the present invention adopts thermoplastic acrylic resin, and low, weak point set time (be about 30 minutes set time in the time of 60 ℃) of solidification value can increase work efficiency, reduce energy cost in construction process, has good operability.
Nonmetal silver-plated powder is to utilize chemical deposition to deposit last layer electroconductibility good metal silver on the outside surface of nonmetal powder among the present invention, it is little to have density, the characteristics that volume specific resistance and silver powder are approaching, its chemical silver plating method is the processing method that adopts conventional chemical silvering, and its typical process flow is sensitization, cleaning, activation, cleaning, chemical silvering, filtration cleaning, oven dry.The volume specific resistance of nonmetal silver-plated powder is less than 1 * 10 among the present invention
-3Ω .CM.
Four, embodiment
Provide embodiments of the invention below, and in conjunction with the embodiments the present invention is described in further detail.
Embodiment 1
The nonmetal powder that the glass powder that restrains at 200 orders 30 makes by chemical silvering joins in the uniform mixture of 6 thermoplastic acrylic resins that restrain and the 60 X-5 acrylic diluents that restrain, and gets electromagnetic screen coating after stirring.
Embodiment 2
The nonmetal silver-plated powder that 30 grams are made with 500 order fine silica powders joins in the uniform mixture of 6 thermoplastic acrylic resins that restrain and the 60 X-5 acrylic diluents that restrain, and gets electromagnetic screen coating after stirring.
Embodiment 3
The nonmetal silver-plated powder that 20 grams are made with 200 order glass powder joins in the uniform mixture of 10 thermoplastic acrylic resins that restrain and the 70 X-5 acrylic diluents that restrain, and gets electromagnetic screen coating after stirring.
Embodiment 4
The nonmetal silver-plated powder that 20 grams are made with 500 order fine silica powders joins in the mixture of 10 thermoplastic acrylic resins that restrain and the 70 X-5 acrylic diluents that restrain, and gets electromagnetic screen coating after stirring.
Claims (3)
1, a kind of preparation method who contains the electromagnetic screen coating of nonmetal silver-plated powder is characterized in that moiety is (weight):
Nonmetal silver-plated powder 10～50%
Thermoplastic acrylic resin 5～20%
X-5 acrylic diluents 30～85%
Wherein, in quantitative thermoplastic acrylic resin, add corresponding X-5 acrylic diluents by weight percentage, stirred 10 minutes with the high speed shear mulser, after mixing, add quantitative nonmetal silver-plated powder, in the high speed shear mulser, stirred 10 minutes, stir.
2, the preparation method who contains the electromagnetic screen coating of nonmetal silver-plated powder according to claim 1 is characterized in that described nonmetal silver-plated powder is to be formed through chemical silvering by in the powdered silica micro mist more than at least 200 orders or glass micro mist or ceramic or other the similar nonmetallic substance powders one or more.
3, the preparation method who contains the electromagnetic screen coating of nonmetal silver-plated powder according to claim 1 is characterized in that described thermoplastic acrylic resin for liquid, molecular-weight average 10,000～1.5 ten thousand, solids content 51 ± 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001127934A CN1144847C (en) | 2000-03-24 | 2000-03-24 | Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001127934A CN1144847C (en) | 2000-03-24 | 2000-03-24 | Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1315477A CN1315477A (en) | 2001-10-03 |
| CN1144847C true CN1144847C (en) | 2004-04-07 |
Family
ID=4582629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001127934A Expired - Fee Related CN1144847C (en) | 2000-03-24 | 2000-03-24 | Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1144847C (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004140322A (en) * | 2002-08-20 | 2004-05-13 | Alps Electric Co Ltd | Electric wave absorber and manufacturing method of the same |
| CN1297617C (en) * | 2003-04-29 | 2007-01-31 | 四川大学 | Aqueous emulsion type electromagnetic wave shielded coating and preparation process thereof |
| CN100373504C (en) * | 2006-04-26 | 2008-03-05 | 浙江大学 | Nano silver wire added conductive composite material, and preparation method |
| GB0801686D0 (en) * | 2008-01-31 | 2008-03-05 | Qinetiq Ltd | Paint composition |
| CN103865353A (en) * | 2014-03-13 | 2014-06-18 | 苏州科茂电子材料科技有限公司 | Conductive coating for ultrafine coaxial cables |
-
2000
- 2000-03-24 CN CNB001127934A patent/CN1144847C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1315477A (en) | 2001-10-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4624865A (en) | Electrically conductive microballoons and compositions incorporating same | |
| CN101812678B (en) | Method for preparing composite material coated with silver on surface through dopamine | |
| CN1944718A (en) | New process for electroplating non-metal material surface and its special conductive paint | |
| JPH09188830A (en) | Highly bright metallic pigment | |
| Lien et al. | Electroless silver plating on tetraethoxy silane-bridged fiber glass | |
| CN1144847C (en) | Electromagnetically shielding paint of silver-coated non-metal powder and its preparing process | |
| CN114260450B (en) | Silver-plated micron-sized particles and preparation method and application thereof | |
| CN109112508B (en) | Preparation method of cobalt-coated aluminum oxide composite powder | |
| JPS61210183A (en) | Method for providing metal film to surface of polymer | |
| CN1099445C (en) | Electromagnetic wave shielding composite coating and method for preparing same | |
| CN1935916A (en) | Graphite base electromagnetic shielding composite coating and its preparing method | |
| GB2082478A (en) | Polymer coatings and methods of applying same | |
| CN111826615A (en) | Method for coating brass or zinc alloy substrate | |
| CN1166830C (en) | Method for making metallization treatment of fabric surface | |
| CN109675771B (en) | Treatment method and application of liquid metal coating | |
| US4752536A (en) | Metal coated potassium titanate fibers and method for manufacturing the same | |
| EP0453090B1 (en) | Electro-deposition coated member, process for producing it, and electro-deposition coating composition | |
| EP0451578A1 (en) | Electro-deposition coated member and process for producing it | |
| JPS5986637A (en) | Electrically conductive inorganic powder | |
| JPS5941489A (en) | Method for electroplating particulate material | |
| CN1195116C (en) | Plant electric conductive fibre and preparation thereof | |
| JPH04350102A (en) | Production of metal coated composite powder | |
| CN110628298A (en) | Preparation method of imitation electroplating auxiliary agent for powder coating | |
| JPH0448697A (en) | Electromagnetic shielding material and manufacture thereof | |
| CN114226725B (en) | Silver-modified micron-sized particles, and preparation method and application thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040407 Termination date: 20100324 |