JP5390427B2 - 電磁波透過用金属被膜、電磁波透過用金属被膜の形成方法及び車載用レーダー装置 - Google Patents
電磁波透過用金属被膜、電磁波透過用金属被膜の形成方法及び車載用レーダー装置 Download PDFInfo
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- JP5390427B2 JP5390427B2 JP2010026635A JP2010026635A JP5390427B2 JP 5390427 B2 JP5390427 B2 JP 5390427B2 JP 2010026635 A JP2010026635 A JP 2010026635A JP 2010026635 A JP2010026635 A JP 2010026635A JP 5390427 B2 JP5390427 B2 JP 5390427B2
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- 239000000594 mannitol Substances 0.000 description 1
- 235000010355 mannitol Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002923 metal particle Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- DFENKTCEEGOWLB-UHFFFAOYSA-N n,n-bis(methylamino)-2-methylidenepentanamide Chemical compound CCCC(=C)C(=O)N(NC)NC DFENKTCEEGOWLB-UHFFFAOYSA-N 0.000 description 1
- 229940088644 n,n-dimethylacrylamide Drugs 0.000 description 1
- YLGYACDQVQQZSW-UHFFFAOYSA-N n,n-dimethylprop-2-enamide Chemical compound CN(C)C(=O)C=C YLGYACDQVQQZSW-UHFFFAOYSA-N 0.000 description 1
- DCBBWYIVFRLKCD-UHFFFAOYSA-N n-[2-(dimethylamino)ethyl]-2-methylprop-2-enamide Chemical compound CN(C)CCNC(=O)C(C)=C DCBBWYIVFRLKCD-UHFFFAOYSA-N 0.000 description 1
- WDQKICIMIPUDBL-UHFFFAOYSA-N n-[2-(dimethylamino)ethyl]prop-2-enamide Chemical compound CN(C)CCNC(=O)C=C WDQKICIMIPUDBL-UHFFFAOYSA-N 0.000 description 1
- 125000004108 n-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- SFBTTWXNCQVIEC-UHFFFAOYSA-N o-Vinylanisole Chemical compound COC1=CC=CC=C1C=C SFBTTWXNCQVIEC-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- UCUUFSAXZMGPGH-UHFFFAOYSA-N penta-1,4-dien-3-one Chemical compound C=CC(=O)C=C UCUUFSAXZMGPGH-UHFFFAOYSA-N 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002312 polyamide-imide Polymers 0.000 description 1
- 238000012643 polycondensation polymerization Methods 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920002530 polyetherether ketone Polymers 0.000 description 1
- 239000011112 polyethylene naphthalate Substances 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005672 polyolefin resin Polymers 0.000 description 1
- 229920006324 polyoxymethylene Polymers 0.000 description 1
- 229920000069 polyphenylene sulfide Polymers 0.000 description 1
- 150000007519 polyprotic acids Polymers 0.000 description 1
- 229920005990 polystyrene resin Polymers 0.000 description 1
- 229920000166 polytrimethylene carbonate Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- XRVCFZPJAHWYTB-UHFFFAOYSA-N prenderol Chemical compound CCC(CC)(CO)CO XRVCFZPJAHWYTB-UHFFFAOYSA-N 0.000 description 1
- 229950006800 prenderol Drugs 0.000 description 1
- HJWLCRVIBGQPNF-UHFFFAOYSA-N prop-2-enylbenzene Chemical compound C=CCC1=CC=CC=C1 HJWLCRVIBGQPNF-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 239000000600 sorbitol Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- UFDHBDMSHIXOKF-UHFFFAOYSA-N tetrahydrophthalic acid Chemical group OC(=O)C1=C(C(O)=O)CCCC1 UFDHBDMSHIXOKF-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Chemical group CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- QXJQHYBHAIHNGG-UHFFFAOYSA-N trimethylolethane Chemical compound OCC(C)(CO)CO QXJQHYBHAIHNGG-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/18—Pretreatment of the material to be coated
- C23C18/20—Pretreatment of the material to be coated of organic surfaces, e.g. resins
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/93—Radar or analogous systems specially adapted for specific applications for anti-collision purposes
- G01S13/931—Radar or analogous systems specially adapted for specific applications for anti-collision purposes of land vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/03—Details of HF subsystems specially adapted therefor, e.g. common to transmitter and receiver
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Details Of Aerials (AREA)
- Radar Systems Or Details Thereof (AREA)
Description
(1) 非導電性基材の表面に非水溶性ポリエステル樹脂を含む触媒付着層を形成する触媒付着層形成工程。
(2) 前記触媒付着層形成工程において形成された触媒付着層上に、無電解めっき法により、非導電性基材の表面に、金属被膜をアイランド状に形成させる無電解めっき工程。
まず、図1を参照して、本件発明に係る電磁波透過用金属被膜100について説明する。
本件発明に係る電磁波透過用金属被膜100は、図1(b)に示すように、非導電性基材10の表面に触媒付着層20を介して設けられており、金属光沢を有している。また、本件発明に係る電磁波透過用金属被膜100は、図1(a)に示すように、触媒付着層20上にニッケル又はニッケル合金をアイランド状に析出させることにより、電磁波の透過パスとなるギャップを形成したものである。本実施の形態の電磁波透過用金属被膜100は、このギャップを介して、波長10mm〜1mm、周波数20GHz〜300GHzの電磁波(ミリ波)を透過可能としており、自動車等に設けられるミリ波レーダー装置(車載用レーダー装置(図示略))のカバー部材を被覆する金属被膜として好適に用いることができる。以下、非導電性基材10、触媒付着層20、金属被膜30の順に説明する。
等が挙げられる
(A) ポリエステル樹脂を製造する際に用いる、多価カルボン酸および多価アルコールの種類を適切なものに選択する。
(B) ポリエステル樹脂の水酸基価を調整する。
(C) ポリエステル樹脂を変性する。
次に、上記電磁波透過用金属被膜100の形成方法を説明する。本件発明に係る電磁波透過用金属皮膜は、下記の工程を備えることが好ましい。以下の工程により安価なニッケルを用いて、本件発明に係る電磁波透過用金属皮膜を簡易に製造することができる。
(1) 非導電性基材10の表面に非水溶性ポリエステル樹脂を含む触媒付着層20を形成する触媒付着層形成工程。
(2) 前記触媒付着層形成工程において形成された触媒付着層20上に、無電解めっき法により、非導電性基材10の表面に、金属被膜をアイランド状に形成する無電解めっき工程。
めっき初期析出をより均一的に反応させるために行ってもよい。
以上説明した本件発明に係る電磁波透過用金属被膜100は、上述したように自動車等に設けられるミリ波レーダー装置のカバー部材の表面を被覆する金属被膜30として好適に用いることができる。以下、車載用レーダー装置及びカバー部材について説明する。
市販の厚み1000μmのポリカーボネート樹脂を非導電性基材として、その一方の面に非水溶性ポリエステル樹脂(プラスコートZ−850:互応化学社)を溶媒で希釈した塗布液をスプレー塗布し、その後、乾燥することにより、厚み1μmの触媒付着層を形成した。
(a)キャタライザー工程
次に、触媒付着層が形成された非導電性基材を、パラジウム及びスズのコロイド触媒液(キャタライザー;ロームアンドハース社)に、45℃の条件下で、60秒間浸漬した。
次に、10%の硫酸(和光純薬社)に、キャタライザー工程を経た非導電性基材を45℃の条件下で、30秒浸漬した。
次に、0.3g/lの塩化パラジウムに、アクセレータ工程を経た非導電性基材を45℃の条件下で、30秒浸漬した。
そして、上述のキャタライザー工程、アクセレータ工程、アクチベーター工程を経て、触媒付着層に触媒としてのパラジウム金属が吸着された非導電性基材を、45℃、pH8.2に調整したニッケルめっき浴に30秒浸漬し、触媒付着層の表面にニッケルがアイランド状に析出した電磁波透過用金属被膜を得た。
実施例1〜実施例3について、それぞれ触媒付着層の表面の純水に対する接触角と、触媒付着層の表面に形成された金属被膜の電磁波透過性、金属光沢及び密着性を評価した。また、比較例についても、同様に評価を行った。結果を表1に示す。
20・・・触媒付着層
30・・・金属被膜
31・・・アイランド
32・・・ギャップ
40・・・エンブレム
100・・・電磁波透過用金属被膜
Claims (7)
- 非導電性基材の表面に設けられた、電磁波の透過可能な金属被膜であり、
当該金属被膜は、当該非導電性基材の表面に設けられた非水溶性ポリエステル樹脂を含む触媒付着層上に、無電解めっき法により金属被膜をアイランド状に形成したものであり、電磁波の透過パスとなるアイランド間のギャップが単位面積(1mm2)中に1本〜5000本存在し、且つ、金属光沢を有することを特徴とする電磁波透過用金属被膜。 - 前記触媒付着層の厚みは、0.05μm〜2.0μmである請求項1に記載の電磁波透過用金属被膜。
- 当該金属被膜の膜厚は、0.01μm〜1μmである請求項1又は請求項2のいずれかに記載の電磁波透過用金属被膜。
- 前記金属被膜は、ニッケル、ニッケル合金、銅、銅合金、銀、銀合金、錫、錫合金、金及び金合金から選択された少なくとも一種を含む請求項1〜請求項3のいずれかに記載の電磁波透過用金属被膜。
- 前記非導電性基材は、絶縁性樹脂、セラミックス、紙、ガラス及び繊維から選択された一種である請求項1〜請求項4のいずれかに記載の電磁波透過用金属被膜。
- 非導電性基材の表面に請求項1〜請求項5のいずれかに記載の電磁波透過用金属被膜を形成する電磁波透過用金属被膜の形成方法であって、
以下の工程を備えることを特徴とする電磁波透過用金属被膜の形成方法。
(1) 非導電性基材の表面に非水溶性ポリエステル樹脂を含む触媒付着層を形成する触媒付着層形成工程。
(2) 前記触媒付着層形成工程において形成された触媒付着層上に、無電解めっき法により、非導電性基材の表面に、金属被膜をアイランド状に形成する無電解めっき工程。 - 請求項1〜請求項5のいずれかに記載の電磁波透過用金属被膜を非導電性基材の表面に備えたカバー部材を用いることを特徴とする車載用レーダー装置。
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PCT/JP2011/052513 WO2011099444A1 (ja) | 2010-02-09 | 2011-02-07 | 電磁波透過用金属被膜、電磁波透過用金属被膜の形成方法及び車載用レーダー装置 |
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JP5665234B2 (ja) * | 2011-11-04 | 2015-02-04 | 三恵技研工業株式会社 | 電磁波透過用金属被膜及び車載用レーダ装置用のレドーム |
JP5993676B2 (ja) | 2012-09-14 | 2016-09-14 | 三恵技研工業株式会社 | 表面光輝品の製造方法 |
JP2014145678A (ja) * | 2013-01-29 | 2014-08-14 | Toyota Motor Corp | 装飾被膜 |
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JP2007119896A (ja) * | 2005-10-31 | 2007-05-17 | Toyoda Gosei Co Ltd | 樹脂製品及びその製造方法並びに金属皮膜の成膜方法 |
US20100016147A1 (en) * | 2007-02-07 | 2010-01-21 | KIMOTO Co, LTD. | Material for forming electroless plate, coating solution for adhering catalyst, method for forming electroless plate, and plating method |
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