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Silicone Rubber Compound: Dimethyl Silicone Oil Gelled with Ferric Oxide, Agens 1948
Mary

Yaremwe na

Mary

17. Ukwakira 2026FI
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Silicone Rubber Compound: Dimethyl Silicone Oil Gelled with Ferric Oxide, Agens 1948

Dimethyl silicone oil mixed with three-quarters its weight of red ferric oxide and a little aluminium chloride, heated to 130 °C, thins and then sets to a solid mass; milled on warm rubber rolls it becomes a silicone rubber compound ready to mould or extrude (Agens, General Electric, US 2,448,756, 1948). Cured, it stretches over 100 % and stays flexible at −60 °C. The picture: our drawing of the beaker, the mill and the sheet.
Hejuru
A day

Amabwiriza

1

Weigh the mix

To 400 g silicone oil add 300 g ferric oxide (75 % of the oil) and 5 g anhydrous aluminium chloride (1.25 %). Stir it smooth. Keep the chloride dry; it fumes in damp air.

Ibikoresho by'iyi ntambwe:

Amavuta ya silikone ya dimetiliAmavuta ya silikone ya dimetili400 g
Ifu itukura yo kunyaraza ntoIfu itukura yo kunyaraza nto300 g

Ibikoresho bikenewe:

Kloride ya alumini (idafite amazi)Kloride ya alumini (idafite amazi)
Igikombe cya BorosilikateIgikombe cya Borosilikate
Igikoresho cyo kuvangaIgikoresho cyo kuvanga
Iminzani ya Digitale yo mu GikoniIminzani ya Digitale yo mu Gikoni
Uturindantoki tw'ikawusuUturindantoki tw'ikawusu
2

Heat to 130 °C

Heat the mix to 130 °C. It first gets thinner, then thickens fast until the whole mass is solid.

Ibikoresho bikenewe:

Urubaho rushyushyaUrubaho rushyushya
Igipima UbushyuheIgipima Ubushyuhe
Igikombe cya BorosilikateIgikombe cya Borosilikate
3

Mill and sheet

Work the mass on rubber rolls at 125 °C for about half an hour and take it off as a sheet. This is the compound.

Ibikoresho bikenewe:

Urusyo rw'umupira rufite roulo ebyiriUrusyo rw'umupira rufite roulo ebyiri
Igipima UbushyuheIgipima Ubushyuhe
4

Test a piece

Agens's test: press a sheet about 1.3 mm thick between platens at 150 °C for ten minutes, then 15 minutes in an oven at 200 °C. It should stretch over twice its length.

Ibikoresho bikenewe:

Ikandagira rishyushye ryo kubumba hakandwaIkandagira rishyushye ryo kubumba hakandwa
Itanura ryo koroshya ibyumaItanura ryo koroshya ibyuma
5

The mix

Gupakira ikaye ya Jupyter…

Ibikoresho

2

Ibikoresho bikenewe

10

Iki gishushanyo gikora

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Agateganyo

Uruvange rw'umupira wa silicone

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Blueprint zijyanye

Izi blueprint zisangira ubumenyi — uburyo, ibikoresho cyangwa amahame

Dimethyl Silicone Oil: Dimethyldichlorosilane Hydrolysed in Dilute Hydrochloric Acid, Agens 1948
Akaga

Dimethyl Silicone Oil: Dimethyldichlorosilane Hydrolysed in Dilute Hydrochloric Acid, Agens 1948

na CharlieDE

Polimeri

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Natural Rubber Tubing, Bands and Sheet: Sulfur-Cured with Heat

Natural Rubber Tubing, Bands and Sheet: Sulfur-Cured with Heat

na MaryFI

Ubutabire

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