I-polyethylene ye-Low-density (LDPE) vs I-Polymer PTFE/FEP Machining

I-Low-density polyethylene (LDPE) iyi-thermoplastic eyenziwe nge-monomer ethylene.Kwakuyibanga lokuqala le-polyethylene, eyakhiqizwa ngo-1933 yi-Imperial Chemical Industries (ICI) isebenzisa inqubo yokucindezela okuphezulu nge-polymerization yamahhala.Ukukhiqizwa kwayo kusebenzisa indlela efanayo namuhla.I-EPA ilinganisela u-5.7% we-LDPE (inombolo yokugaya kabusha 4) igaywa kabusha.Naphezu kokuncintisana okuvela kuma-polymers esimanje, i-LDPE isaqhubeka nokuba yibanga elibalulekile lepulasitiki.

I-PTFEiwukuqina kwe-fluorocarbon, njengoba iyinhlanganisela enesisindo esikhulu samangqamuzana ehlanganisa ngokuphelele ikhabhoni nefluorine.I-PTFE i-hydrophobic: akunawo amanzi noma izinto eziqukethe amanzi ezimanzi i-PTFE, njengoba ama-fluorocarbons akhombisa amandla okuhlakazeka ase-London ancishisiwe ngenxa ye-electronegativity ephezulu ye-fluorine.I-PTFE ine-coefficient eyodwa ephansi kakhulu yokungqubuzana kwanoma yikuphi okuqinile.

Ukuqhathaniswa kwe-LDPE kanye ne-Polymer PTFE/FEP Property Values

Izicelo Zezinto Ezibalulekile

I-polyethylene ye-Low-density (LDPE):

I-LDPE isetshenziswa kabanzi ukukhiqiza iziqukathi ezahlukahlukene, amabhodlela okukhipha, amabhodlela okugeza, amashubhu, izikhwama zepulasitiki zezingxenye zamakhompiyutha, kanye nemishini yaselabhorethri ehlukahlukene ebunjiwe.Ukusetshenziswa kwayo okuvame kakhulu kusezikhwameni zepulasitiki.Eminye imikhiqizo eyenziwe ngayo ihlanganisa:

• * Amathreyi neziqukathi zenhloso ejwayelekile
• * Izindawo zokusebenza ezimelana nokubola
• * Izingxenye ezidinga ukushiselwa futhi zikwazi ukushintshwa
• * Izingxenye ezidinga ukuguquguquka, ezisebenza kahle kakhulu
• * Izingxenye ezithambile kakhulu nezithambile njengezivalo ezivulekayo
• * Izindandatho zephakethe eziyisithupha
• * Amakhathoni kajusi nobisi enziwe ngebhodi lokupakisha eliwuketshezi, i-laminate ye-paperboard kanye ne-LDPE (njengesendlalelo esingenwa amanzi sangaphakathi nangaphandle), futhi ngokuvamile ngongqimba lwe-aluminium foil (ngaleyo ndlela iba ukupakishwa kwe-aseptic).
• * Ukupakishwa kwehardware yekhompuyutha, njengamadrayivu e-hard disk, amakhadi esikrini, namadrayivu e-optical disc
• * Amaslayidi enkundla yokudlala
• * Izingubo zePlastiki

I-POLYMER PTFE/FEP:Izixazululo zekhebula;Ama-bearings angagcotshiwe;O-rings;Seals;Capacitor;Ukukhiqiza ama-semiconductor;Izingxenye zikagesi ezishisa kakhulu;Amagesi;Izingxenye zamavalvu.

Izinto ezibonakalayo:

I-polyethylene ye-Low-density (LDPE):a;I-LDPE ichazwa ngebanga lokuminyana elingu-0.910–0.940 g/cm3.Ayisebenzi emazingeni okushisa asekamelweni, ngaphandle kwama-oxidizing agents aqinile, futhi amanye ama-solvents abangela ukuvuvukala.Ingakwazi ukumelana namazinga okushisa angu-80 °C ngokuqhubekayo kanye no-95 °C isikhathi esifushane.Yenziwe ngokuhlukahluka okukhanyayo noma okufiphele, iyavumelana nezimo futhi iqinile.

b;I-LDPE inamagatsha amaningi (cishe u-2% wama-athomu ekhabhoni) kune-HDPE, ngakho-ke amandla ayo e-intermolecular (ukuheha ngokushesha kwe-dipole-induced-dipole) aba buthaka, amandla ayo aqinile aphansi, futhi ukuqina kwayo kuphakeme.Futhi, ngenxa yokuthi ama-molecule ayo ahlanganiswe kancane futhi i-crystalline encane ngenxa yamagatsha aseceleni, ukuminyana kwawo kuphansi.

c;Ukumelana namakhemikhali:1,Ukumelana okuhle kakhulu (akukho kuhlasela / akukho ukusabela kwamakhemikhali) ukuze kuhlanjululwe futhi kugxilwe ama-acids, utshwala, izisekelo nama-esters; 2,Ukumelana okuhle (ukuhlasela okuncane / ukuphinda kusebenze kabusha kwamakhemikhali) kuma-aldehydes, ama-ketones namafutha emifino; Ukumelana okulinganiselwe (ukuhlasela okumaphakathi / ukusabela kwamakhemikhali okubalulekile, kulungele ukusetshenziswa kwesikhathi esifushane kuphela) kuma-hydrocarbon aliphatic kanye nephunga elimnandi, uwoyela wamaminerali, nama-oxidizing agents;4,Ukumelana okubuthakathaka, futhi akunconywa ukuthi kusetshenziswe nama-halogenated hydrocarbons.

I-POLYMER PTFE/FEP:Izakhiwo ezinhle kakhulu ze-dielectric;Ukungangeni kumakhemikhali amaningi; Ukushisa okuphezulu nokumelana namakhemikhali; I-coefffiecient ephansi kakhulu yokungqubuzana; Ukumelana kahle nemisebe; Ukumunca umswakama ongu-Zero; Ayizwani nemvamisa yamandla uma iqhathaniswa; Ukusebenza kahle.