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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.
Katamtaman
Half a day
Mga Tagubilin
1
1
Weigh 8 : 3 : 3
Weigh 8 : 3 : 3
Weigh 8 parts PVC resin, 3 parts tricresyl phosphate and 3 parts dibutyl phthalate.
Mga materyales para sa hakbang na ito:
PVC Resin8 parts
Tricresyl Phosphate3 parts
Dibutyl Phthalate3 partsMga kailangang kasangkapan:
Timbangang panimbang2
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.
Mga kailangang kasangkapan:
Malaking Kaldero
Oil Bath
Pang-init na Plato
Panghalo
Termometrong Panlaboratoryo
Kabinet ng usok (may tubo)
Guwantes na Matibay sa Init
Salamin Laban sa Tilamsik ng Kemikal3
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.
Mga kailangang kasangkapan:
Bandehang pampalamig ng malagkitGuwantes na Matibay sa Init4
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.
Mga kailangang kasangkapan:
PelletizerMga Materyales
3- 8 partsPlaceholder
- 3 partsPlaceholder
- 3 partsPlaceholder
Mga Kinakailangang Kasangkapan
11- Placeholder
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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
Mapanganib
PVC Resin: Vinyl Chloride Polymerised in Water without Emulsifier
ni Charlie
Industriyal
15
0
0
0
0
0
Mapanganib
Tricresyl Phosphate: Cresol and Phosphorus Oxychloride over Magnesium Chloride
ni Charlie
Industriyal
10
0
0
0
0
0
Mapanganib
Dibutyl Phthalate: Phthalic Anhydride and Butyl Alcohol, Water Drawn Off under Vacuum
ni Charlie
Industriyal
13
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.