Zovala za labotale zimabwera m'mitundu yosiyanasiyana, ndipo palibe zinthu chimodzi zomwe zingakwaniritse zoyeserera zonse. Chifukwa chake, kodi mukudziwa zomwe zimagwiritsidwa ntchito mu mafilimu oletsedwa? Ndipo pali kusiyana kotani mu thupi lawo lathupi ndi mankhwala? Tsopano tikuyankha mafunso awa ndi limodzi pansipa.

PP (polypropylene)

Polypropylene, wachidule monga PP, ndi polima polima kudzera polymerization kwa propylene. Nthawi zambiri pamakhala zolimba, zodetsa zopanda pake, zopanda fungo, komanso zopanda poizoni. Imakhala ndi kutentha kwa kutentha ndipo kumatha kuphatikizidwa ndi kutentha kwambiri komanso zovuta za 121 ° C. Komabe, imakhala yopanda kutentha pang'ono (pansi pa 4 ° C) ndipo amakonda kusweka kapena kuthyola ikagwa kuchokera kutalika.

Polypropylene (ma pp) amawonetsa katundu wabwino kwambiri ndi kukana kwa mankhwala. Imatha kupirira kuphukira kwa asidi, zitsulo, mayankho amchere, ndi osiyanasiyana osungunuka pamatenthedwe pansi pa 80 ° C. Poyerekeza ndi polyethylene (PE), PP omwe ali ndi kuuma bwino, mphamvu, ndi kukana kutentha. Chifukwa chake, pamene zosemphana ndi kufalitsa kufalikira kapena kuwonerera kosavuta, komanso mphamvu yolimba kapena kukana kutentha, zida za PP zitha kusankhidwa.

Zovuta monga centrifuge machubu, machubu a pcr, pcr 96-chabwino, mabotolo osungira, ndi maupangiri osungunuka onse opangidwa ndi polypropylene ngati zinthu zopangira.

PS (Polystyrene)

Polystyrene (PSS), zopangidwa kudzera mu sulmerization ya ma polymerization a monomer, ndi mtundu wopanda utoto komanso wowoneka bwino wokhala ndi 90%. PS imawonetsa kulimba mtima kwabwino, osadandaula, komanso kukhazikika kwamphamvu, ndipo ali ndi mankhwala abwino othetsera matendawa koma kukana ma solf. PS Zogulitsa ndizokhazikika pa firiji ndipo amakonda kuwonongeka kapena kuthyola ikagwa. Kutentha kwambiri kogwiritsira ntchito sikuyenera kupitirira 80 ° C, ndipo sikungathe kuwaza kutentha kwambiri ndi zovuta za 121 ° C. M'malo mwake, electrow lomezani kuphatikiza kapena mankhwala osinthitsa amatha kusankhidwa.

Mimba ya enzyme-yolembedwa, chikhalidwe cha maselo, ndipo ma piipe a seramu onse amapangidwa ndi polystyrene (PS) monga zomera zawo.

Pe (polyethylene)

Polyethylene, wachidule monga pe, ndi wolozera wa thermoplastic amapezeka polymerization wa ethylene monomers. Ndiwopanda fungo, osadandaula, ndipo ali ndi malingaliro a waxy. Perikitala yolimba kwambiri (yokhala ndi kutentha kocheperako kuyambira -100 mpaka -70 ° C). Zimakhala zofewa pa kutentha kwambiri ndipo ndi opaque.

Monga pololefin ena, polyethylene ndi nkhani ya mankhwala mwanjira yabwino. Chifukwa cha zomangira za kaboni-kaboni

Mabotolo akugwedezeka, ma piptte, amasamba mabotolo, ndipo zinthu zina zosemphana zimapangidwa ndi zinthu za polyethylene.

PC (Polycarbonate)

Polycarbonate, imadziwikanso kuti PC pulasitiki, ndi polymer okhala ndi magulu a Carbonate mu unyolo wake. Imawonetsa kulimba mtima komanso kulimba mtima, kupangitsa kuti zisathe kuswa. Kuphatikiza apo, zimadetsa kutentha kwa kutentha ndi kukana kwa radiation, kukwaniritsa zofunikira za kutentha kwambiri, kuphatikiza kowirikirako kotentha ndi chithandizo cha ma radiation champhamvu mu gawo la biomedarical.

Polycarbonate sagwirizana ndi asidi ofooka, zitsulo zofooka, komanso mafuta osalowerera ndale. Komabe, sizikugwirizana ndi kuwala kwa ultraviolet ndi zitsulo zolimba.

Mabokosi ozizira, maginito amtundu wamatsenga, ndipo Ellenmeyer Flasks amapangidwa ndi polycarbonate (PC).

Zomwe zili pamwambapa zimalongosola zinthu zingapo zomwe zimagwiritsidwa ntchito pazovuta za labotale. Mwambiri, zinthuzi zitha kusankhidwa popanda zofunika zapadera. Ngati kuyesako kuli ndi zofunikira zina, munthu angaganizire kusankha zomwe zimakwaniritsa zofunikira kapena kusintha zida zomwe zilipo kuti zikwaniritse zomwe mukufuna.