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Acrylic Mirror Sheet: Silver Sprayed on Tannin-Treated Acrylic
Silver from a chemical bath barely sticks to acrylic: tannin in plain water gave no bond at all. Philips' Ponjee and Verwijlen (US 4,639,382, 1987) found that tannin dissolved in water mixed with an organic solvent such as ethanol makes the silver hold firmly, without etching or clouding the acrylic. The sheet is dipped for a minute, sensitised with a weak stannous chloride spray, then silvered by spraying the silver solution and the reducer together. In the patent's cross-cut test, no squares of silver came off.
The picture: our diagram.
Katamtaman
2 hours
Mga Tagubilin
1
1
Dip in tannin solution for one minute
Dip in tannin solution for one minute
Make a solution of 2.3–5.0 g of tannic acid per litre in water with 15–60 % ethanol by volume. Dip the acrylic sheet in it for one minute.
Mga materyales para sa hakbang na ito:
Lapad na Akriliko1 pirasoMga kailangang kasangkapan:
Tannic Acid
Etanol - antas laboratoryo, 95 %
Distiladong Tubig
Mga trey na salamin
Silindrong may sukatan
Timbangang panimbang
Gwantes na goma2
2
Rinse with water
Rinse with water
Rinse the sheet with water.
Mga kailangang kasangkapan:
Distiladong Tubig
Bote ng Panlinis3
3
Spray with stannous chloride for 12 seconds
Spray with stannous chloride for 12 seconds
Spray the face to be silvered with a solution of 0.1 g stannous chloride and 0.1 ml concentrated hydrochloric acid per litre of water, for 12 seconds. Rinse off the excess with water.
Mga kailangang kasangkapan:
Stannous Chloride
Hydrochloric acidDistiladong Tubig
Boteng pang-ambon ng tubigBote ng Panlinis
Salamin Laban sa Tilamsik ng KemikalGwantes na goma4
4
Spray silver and reducer together
Spray silver and reducer together
Atomise two solutions onto the face at the same time: silver nitrate with ammonia in water, and formalin in water. The patent gives no strengths: as required. Ours: a twin-nozzle spray gun.
Mga materyales para sa hakbang na ito:
Silver Nitrate1 as requiredMga kailangang kasangkapan:
Solusyon ng ammonia - 25-28 %
Solusyon ng formaldehyde (37 % na formalin)Distiladong Tubig
Spray Gun na May Dalawang Nozzle
Kabinet ng usok (may tubo)Salamin Laban sa Tilamsik ng KemikalGwantes na gomaMga Materyales
2- 1 pirasoPlaceholder
- 1 as requiredPlaceholder
Mga Kinakailangang Kasangkapan
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Ang blueprint na ito ay gumagawa ng
Kaugnay na Blueprint
Ang mga blueprint na ito ay nagbabahagi ng kaalaman — mga teknik, materyales, o prinsipyo
Tannic Acid: Powdered Galls Extracted with Ether (Pelouze, Pharmacopoeia Form)
ni Charlie
Industriyal
11
0
0
0
0
0
Mapanganib
Stannous Chloride (Tin Salt): Tin Dissolved in Hydrochloric Acid and Crystallised
ni Charlie
Inorganiko
13
0
0
0
0
0
Mapanganib
Making a Silver Mirror by the Liebig Process — Depositing Metallic Silver on Glass
ni Charlie
Kalawakan
118
0
0
0
0
0
CC0 Pampublikong Domain
Ang blueprint na ito ay inilabas sa ilalim ng CC0. Malaya kang kumopya, magbago, mamahagi, at gumamit nang walang pahintulot.
Suportahan ang Maker sa pamamagitan ng pagbili ng mga produkto sa kanilang Blueprint Komisyon ng Maker itinakda ng mga Vendor, o lumikha ng bagong bersyon ng Blueprint na ito at isama bilang koneksyon sa iyong Blueprint upang ibahagi ang kita.