SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
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SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Polyvinyl Acetate: Vinyl Acetate Set Solid by Sunlight
Klatte and Rollett (Griesheim-Elektron, patent 1917) found that vinyl acetate left in sunlight, or under a mercury vapour lamp, turns into a clear, colourless solid like celluloid. It can be cut and turned, softened in hot water and moulded, and dissolved in ethyl acetate as a lacquer. It is the polymer behind PVA glue.
The picture: our diagram, liquid to solid in the light.
Kati
Days in the sun
Maagizo
1
1
Fill a clear vessel
Fill a clear vessel
Pour vinyl acetate into a clear glass jar and close it (our vessel). Its vapour ignites easily: no flames near it.
Vifaa kwa hatua hii:
Monoma ya vinili asetati500 gZana zinazohitajika:
Mitungi ya kioo yenye vifuniko
Mizani ya dijitali ya jikoni
Glavu zinazostahimili kemikali
Miwani ya kinga dhidi ya kemikali2
2
Set it in the light
Set it in the light
Stand the jar in direct sunlight, or under a mercury vapour lamp. Stronger light and warmth make it set faster; it first turns syrupy, then solid.
Zana zinazohitajika:
Mitungi ya kioo yenye vifuniko3
3
Take out the solid
Take out the solid
The product is clear, colourless and odourless. Cut or turn it, or soften it in hot water and mould it; it hardens again as it cools.
Zana zinazohitajika:
Kisu cha kazi za mikono
Sufuria ya kupikia kwa mvuke wa majiGlavu zinazostahimili kemikali4
4
Monomer in, polymer out
Monomer in, polymer out
Inapakia daftari la Jupyter…
Vifaa
1- Kishikilia Nafasi
Zana Zinazohitajika
6- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
Blueprint zinazohusiana
Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.