Zotengera zapulasitiki zomwe zimagwiritsidwa ntchito kwambiri mu labotale ndi monga mabotolo a reagent, machubu oyesera, mitu yoyamwa, udzu, makapu oyezera, masilindala oyezera, ma syringe otaya ndi ma pipette.Zopangira pulasitiki zimakhala ndi mawonekedwe osavuta kupanga, kukonza kosavuta, kuchita bwino kwaukhondo komanso mtengo wotsika.Akusintha pang'onopang'ono zinthu zamagalasi ndipo amagwiritsidwa ntchito kwambiri pofufuza zasayansi, kuphunzitsa ndi zina.
Mitundu yazinthu zamapulasitiki zomwe zimagwiritsidwa ntchito kwambiri m'ma laboratories
Chigawo chachikulu cha mapulasitiki ndi utomoni, okhala ndi plasticizers, fillers, lubricant, colorants ndi zina zowonjezera monga zida zothandizira.Zopangidwa ndi pulasitiki zokhala ndi mitundu yosiyanasiyana zimakhala ndi zinthu zosiyanasiyana.Zinthu zapulasitiki zomwe sizimakhudzidwa ndi zinthu zachilengedwe, monga polyethylene, polypropylene, polymethylpentene, polycarbonate, polystyrene ndi polytetrafluoroethylene, nthawi zambiri zimasankhidwa m'ma laboratories.Mankhwala reagents angakhudze makina mphamvu, kuuma, pamwamba mapeto, mtundu ndi kukula kwa mankhwala pulasitiki.Choncho, ntchito ya pulasitiki iliyonse iyenera kumveka bwino posankha zinthu zapulasitiki.
Chigawo chachikulu cha mapulasitiki ndi utomoni, okhala ndi plasticizers, fillers, lubricant, colorants ndi zina zowonjezera monga zida zothandizira.Zopangidwa ndi pulasitiki zokhala ndi mitundu yosiyanasiyana zimakhala ndi zinthu zosiyanasiyana.Zinthu zapulasitiki zomwe sizimakhudzidwa ndi zinthu zachilengedwe, monga polyethylene, polypropylene, polymethylpentene, polycarbonate, polystyrene ndi polytetrafluoroethylene, nthawi zambiri zimasankhidwa m'ma laboratories.Mankhwala reagents angakhudze makina mphamvu, kuuma, pamwamba mapeto, mtundu ndi kukula kwa mankhwala pulasitiki.Choncho, ntchito ya pulasitiki iliyonse iyenera kumveka bwino posankha zinthu zapulasitiki.
1. Polyethylene (PE)
Kukhazikika kwa Chemical ndikwabwino, koma kumakhala okosijeni komanso kuphulika mukakumana ndi okosijeni;Izo sizisungunulika mu zosungunulira kutentha kwa firiji, koma zimakhala zofewa kapena zowonjezera ngati zisungunulira zowononga;Katundu waukhondo ndi wabwino kwambiri.Mwachitsanzo, madzi osungunuka omwe amagwiritsidwa ntchito popanga chikhalidwe nthawi zambiri amasungidwa m'mabotolo a polyethylene.
2. Polypropylene (PP)
Zofanana ndi PE pamapangidwe ndi ntchito zaukhondo, ndizoyera komanso zopanda kukoma, zokhala ndi kachulukidwe kakang'ono, ndipo ndiyopepuka kwambiri pakati pa mapulasitiki.Imalimbana ndi kuthamanga kwambiri, kusungunuka kutentha kwa chipinda, sichigwira ntchito ndi ma TV ambiri, koma imakhudzidwa kwambiri ndi oxidants amphamvu kuposa PE, sichigonjetsedwa ndi kutentha kochepa, ndipo ndi yofooka pa 0 ℃.
3. Polymethylpentene (PMP)
Mandala, kutentha kugonjetsedwa (150 ℃, 175 ℃ kwa nthawi yochepa);Kukana kwa mankhwala kuli pafupi ndi PP, yomwe imachepetsedwa mosavuta ndi zosungunulira za klorini ndi ma hydrocarbons, ndipo imakhala yosavuta oxidized kuposa PP;High kuuma, mkulu brittleness ndi fragility kutentha firiji.
4. Polycarbonate (PC)
Zowoneka bwino, zolimba, zopanda poizoni, kuthamanga kwambiri komanso kusagwirizana ndi mafuta.Ikhoza kuchitapo kanthu ndi mowa wa alkali ndi sulfuric acid, hydrolyze ndi kupasuka muzosungunulira zosiyanasiyana za organic zitatenthedwa.Itha kugwiritsidwa ntchito ngati chubu la centrifuge kuti musatseke njira yonse mubokosi la ultraviolet chotchinga.
5. Polystyrene (PS)
Zopanda mtundu, zosakoma, zopanda poizoni, zowonekera, komanso zachilengedwe.Kukaniza zosungunulira zofooka, mphamvu zochepa zamakina, zowonongeka, zosavuta kusweka, zosagwira kutentha, zoyaka.Amagwiritsidwa ntchito kwambiri popanga zida zachipatala zotayidwa.
6. Polytetrafluoroethylene (PTEE)
Zoyera, zowoneka bwino, zosavala, zomwe zimagwiritsidwa ntchito popanga mapulagi osiyanasiyana.
7. Polyethylene terephthalate G copolymer (PETG)
Chowonekera, cholimba, chopanda mpweya, komanso chopanda poizoni wa bakiteriya, chimagwiritsidwa ntchito kwambiri mu chikhalidwe cha maselo, monga kupanga mabotolo a chikhalidwe cha maselo;Ma radiochemicals amatha kugwiritsidwa ntchito popha tizilombo toyambitsa matenda, koma mankhwala opha tizilombo toyambitsa matenda kwambiri sangagwiritsidwe ntchito.
Nthawi yotumiza: Sep-27-2022