SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Flexible PVC Compound: PVC Dissolved Hot in Tricresyl Phosphate and Dibutyl Phthalate
Flexible PVC was Waldo Semon's discovery at B. F. Goodrich (US 1,929,453, 1933): hard PVC dissolved at high temperature in a non-volatile liquid sets on cooling into a tough, rubbery solid. His gasoline-resistant composition is 8 parts PVC, 3 parts tricresyl phosphate and 3 parts dibutyl phthalate; more plasticiser makes it softer. It can be moulded and extruded, and he names insulating electric wire and lining hose among its uses. Cutting it into pellets is our step.
The picture: our diagram.
Kati
Half a day
Maagizo
1
1
Weigh 8 : 3 : 3
Weigh 8 : 3 : 3
Weigh 8 parts PVC resin, 3 parts tricresyl phosphate and 3 parts dibutyl phthalate.
Vifaa kwa hatua hii:
Resini ya PVC8 parts
Trikresili Fosfeti3 parts
Dibutili Ftalati3 partsZana zinazohitajika:
Mizani ya mizani-mbili2
2
Dissolve hot
Dissolve hot
Heat and stir the mixture to about 180 °C (the temperature the patent gives for its other compositions) until it is one homogeneous liquid. Work under a hood.
Zana zinazohitajika:
Sufuria kubwa ya chuma cha pua
Bafu la Mafuta
Sahani ya Kupasha Joto
Kikorogo
Kipimajoto cha maabara
Kabati la kutoa mvuke (lenye bomba)
Glavu Zinazostahimili Joto
Miwani ya kinga dhidi ya kemikali3
3
Cool to a rubbery solid
Cool to a rubbery solid
Pour it out and let it cool: it sets to a stiff, rubbery gel. More plasticiser gives a softer, more stretchy product; less gives a harder, stronger one.
Zana zinazohitajika:
Sinia ya kupozea wali wa kunataGlavu Zinazostahimili Joto4
4
Cut into pellets
Cut into pellets
Ours: cut the cooled compound into pellets for the extruder. The patent extrudes the compound, for example as insulation around wire.
Zana zinazohitajika:
Kitengeneza chembeVifaa
3- 8 partsKishikilia Nafasi
- 3 partsKishikilia Nafasi
- 3 partsKishikilia Nafasi
Zana Zinazohitajika
11- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- 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
Hatari
PVC Resin: Vinyl Chloride Polymerised in Water without Emulsifier
na Charlie
Viwandani
6
0
0
0
0
0
Hatari
Tricresyl Phosphate: Cresol and Phosphorus Oxychloride over Magnesium Chloride
na Charlie
Viwandani
3
0
0
0
0
0
Hatari
Dibutyl Phthalate: Phthalic Anhydride and Butyl Alcohol, Water Drawn Off under Vacuum
na Charlie
Viwandani
6
0
0
0
0
0
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.