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Youblob · CC0
Silicone Sealant: Silicone Oil, Diatomaceous Earth and Methyl Triacetoxysilane (Ceyzeriat 1964)
A one-part silicone that stays a paste in a sealed tube and turns to rubber in the open air. The moisture in the air splits the methyl triacetoxysilane, which then ties the hydroxyl ends of the oil together. Louis Ceyzeriat of Rhône-Poulenc made it with diatomaceous earth as the filler; his Example IV paste became an elastic solid in 15 hours.
Source: L. Ceyzeriat (Rhône-Poulenc), US 3,133,891 (1964), Example IV and columns 3–4. His filler was Celite 350; we use raw diatomaceous earth in its place. Picture drawn by Youblob.
중급
1 day
안내
1
1
Knead the paste
Knead the paste
Knead 200 parts of hydroxyl-ended silicone oil with 80 parts of diatomaceous earth and 1 part of zinc oxide until it is an even paste. All parts are by weight.
이 단계의 재료:
말단 하이드록실 실리콘 오일200 parts
규조토80 parts
산화아연 분말1 parts필요한 도구:
니더(반죽기)
접시 저울2
2
Drive out all moisture
Drive out all moisture
If the sealant is to be kept, it must be made dry: a paste with zinc oxide especially needs this. Heat it in the mixer at 50–200 °C, stirring, until every trace of moisture is gone, then let it cool. The patent gives that range, not one temperature or time.
필요한 도구:
니더(반죽기)
전열판(핫플레이트)
온도계3
3
Mix in the silane
Mix in the silane
Add 3 parts of methyl triacetoxysilane for every 100 parts of paste: 8.4 parts for the whole 281 parts (our arithmetic). Keep the air out while you mix.
이 단계의 재료:
메틸트리아세톡시실란8.4 parts필요한 도구:
니더(반죽기)접시 저울4
4
Fill dry containers and seal them
Fill dry containers and seal them
Without letting any water in, fill it into dry containers and seal them airtight. Kept like this it stays usable for many months.
필요한 도구:
기밀 보관 용기5
5
Use: it cures in the air
Use: it cures in the air
Spread or press it where it is needed and leave it in the air. Ceyzeriat's paste was an elastic solid after 15 hours. Pressed as a 2 mm sheet it tested 25.6 kg/cm² in tension, 290 % stretch and Shore A 50; after 24 hours, 39 kg/cm², 260 % and Shore A 58.
필요한 도구:
뒤집개재료
4- 200 parts플레이스홀더
- 80 parts플레이스홀더
- 1 parts플레이스홀더
- 8.4 parts플레이스홀더
이 블루프린트로 만드는 것
관련 블루프린트
이 블루프린트들은 지식을 공유합니다 — 기술, 재료 또는 원리
Hydroxyl-Ended Silicone Oil: D4 Opened with Potash, Then Water (Ceyzeriat 1964)
Charlie 작성
산업용
14
0
0
0
0
0
위험
Methyltriacetoxysilane: Methyltrichlorosilane with Acetic Acid, Then Acetic Anhydride
Charlie 작성
산업용
14
0
0
0
0
0
Zinc Oxide (Pharmacy): Zinc Carbonate Precipitated with Hot Soda, Then Heated
Charlie 작성
무기
18
0
0
0
0
0
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