Kodi ntchito za polycarbonate (PC) ndi ziti?
Ndizovuta kulingalira kuti zinthu zambiri m'moyo zimapangidwa ndi polycarbonate.
Kodi polycarbonate ndi chiyani? Mwachidule, polycarbonate ndi pulasitiki yaukadaulo yomwe imaphatikiza zinthu zingapo zabwino kwambiri. Ndi zaka zopitilira 60 za mbiri yachitukuko, zakhala zikugwiritsidwa ntchito kwambiri m'magawo osiyanasiyana a moyo watsiku ndi tsiku, ndipo anthu ochulukirachulukira akukumana ndi zovuta komanso chitonthozo chomwe zida za PC zimatibweretsera. Ndi pulasitiki yaukadaulo ya thermoplastic yogwira ntchito kwambiri yomwe imaphatikiza zinthu zambiri zabwino kwambiri monga kuwonekera, kulimba, kukana kusweka, kukana kutentha, komanso kuchedwa kwamoto. Ndi imodzi mwamapulasitiki akuluakulu asanu a engineering. Chifukwa cha mawonekedwe apadera a polycarbonate, yakhala pulasitiki yomwe ikukula mwachangu kwambiri pakati pa mapulasitiki akuluakulu asanu. Pakadali pano, mphamvu yopanga padziko lonse lapansi imapitilira matani 5 miliyoni.
Zida za PC zimagwiritsidwa ntchito kwambiri ndipo zimatha kukonzedwa kudzera mu jekeseni, extrusion, ndi njira zina. Pali mankhwala osiyanasiyana omwe ali ndi ntchito zosiyanasiyana. Tiyeni tiwone mwatsatanetsatane ntchito 8 zodziwika bwino zama PC zomwe zilipo pano:
1 、 Zida Zagalimoto
Zida za PC zili ndi zabwino zowonekera, kukana kwabwino, komanso kukhazikika kwapang'onopang'ono, ndipo zimagwiritsidwa ntchito kwambiri pantchito zamagalimoto. Mwachitsanzo, ma sunroofs agalimoto, magetsi akutsogolo, etc. Ndikukula kwachangu kwamakampani amagalimoto, kuchuluka kwa zida zama PC zomwe zimagwiritsidwa ntchito pamagalimoto kumawonjezeka pang'onopang'ono. Mapangidwewa ndi osinthika komanso osavuta kukonza, kuthetsa zovuta zaukadaulo zamagalasi achikhalidwe opanga magalasi. Pakadali pano, kugwiritsidwa ntchito kwa polycarbonate m'gawoli ku China kuli pafupifupi 10%. Makampani opanga zamagetsi ndi zamagetsi, komanso makampani opanga magalimoto, ndizomwe zimapanga chitukuko chofulumira cha China. M'tsogolomu, kufunika kwa polycarbonate m'minda iyi kudzakhala kwakukulu.
2 、 Zomangira
Ma sheet olimba a PC akhala akugwiritsidwa ntchito mosalekeza m'nyumba zazikulu m'zaka zaposachedwa, monga Bwalo la Pantanal ku Brazil ndi Bwalo la Aviva ku Dublin, Ireland, chifukwa cha kukhazikika kwawo, kukana mphamvu, kutsekereza kutentha, kuwonekera, komanso kukana kukalamba. Zikunenedwa kuti m'tsogolomu, padzakhala nyumba zambiri zomwe zimagwiritsa ntchito PC iyi ngati madenga, ndipo chiwerengero cha nyumba chidzawonjezeka. Kuphatikiza apo, m'zaka zaposachedwa, mapepala olimba a PC akhala akugwiritsidwa ntchito kwambiri m'mawonekedwe osiyanasiyana a madenga akuluakulu ounikira masana, masitepe oteteza masitepe, komanso malo opangira masana. Kuchokera m'malo opezeka anthu ambiri monga mabwalo a mpira ndi maholo odikirira kupita ku nyumba zogona komanso nyumba zogona, madenga owoneka bwino a denga la PC sikuti amangopatsa anthu chisangalalo komanso kukongola, komanso amapulumutsa mphamvu.
3 、 Zida zamagetsi
Zida za PC zili ndi kukana kwamphamvu, kutsekereza kwamagetsi, ndi mawonekedwe odaya osavuta, ndipo amagwiritsidwa ntchito kwambiri pazida zamagetsi, monga makamera amafoni, ma laputopu, zida zamagetsi, ndi ma charger opanda zingwe. Zikuyembekezeredwa kuti chiwerengero cha ntchito m'derali sichidzasinthasintha kwambiri m'tsogolomu.
4 、 Zida zamankhwala
Chifukwa cha kuthekera kwawo kupirira nthunzi, zoyeretsera, kutentha, ndi kupha tizilombo toyambitsa matenda kwambiri popanda chikasu kapena kuwonongeka kwa thupi, zinthu za polycarbonate zimagwiritsidwa ntchito kwambiri pazida zopangira impso za hemodialysis, komanso zida zina zamankhwala zomwe zimafuna kuti ziwonekere komanso mwanzeru komanso kupha tizilombo toyambitsa matenda mobwerezabwereza, monga majekeseni othamanga kwambiri, masks opangira opaleshoni, zipangizo zamano zotayidwa, mpweya wa okosijeni wa magazi, kusonkhanitsa magazi ndi zipangizo zosungirako, magazi. olekanitsa, etc. Zikuyembekezeredwa kuti gawo la ntchito m'derali lidzawonjezeka mtsogolomu.
5 、 Kuwala kwa LED
Pambuyo pa kusinthidwa kwapadera, mphamvu ya PC yofalitsa kuwala idzakhala yabwino kwambiri, ndipo ntchito yake m'munda wa LED ikhoza kupulumutsa mphamvu. Pachitukuko chamtsogolo, kusungirako mphamvu kudzakhala cholinga chachikulu, ndipo gawo la mbaliyi liyenera kuwonjezeka pang'onopang'ono. Zopepuka, zosavuta kukonza, zolimba kwambiri, kuchedwa kwamoto, kukana kutentha, ndi zinthu zina za polycarbonate zimapanga chisankho choyambirira chosinthira zida zamagalasi pakuwunikira kwa LED.
6 、 Chitetezo cha chitetezo
Magalasi oteteza opangidwa ndi zinthu zomwe si PC amatha kusokoneza mtundu wamunthu, zomwe zimapangitsa kuti munthu wotetezedwa avutike kusiyanitsa mitundu muzochitika zina zapadera komanso kufuna kuchotsedwa kwa zida zodzitetezera, zomwe zingayambitse ngozi. Komabe, zida za PC zili ndi kuwonekera kwambiri, kukana kwabwino, ndipo sizimasweka mosavuta, kuzipangitsa kukhala zoyenera madera otetezera chitetezo monga magalasi owotcherera ndi mawindo a chisoti chamoto. Zikuyembekezeredwa kuti chiwerengero cha ntchito m'derali sichidzasinthasintha kwambiri m'tsogolomu.
7 、 Kukhudzana ndi chakudya
Kutentha kwa zinthu za PC kumatha kufika pafupifupi 120 ℃, ndipo sikungatulutse bisphenol A mkati mwazakudya zatsiku ndi tsiku, kotero chitha kugwiritsidwa ntchito molimba mtima. Monga zida zapamwamba zapamwamba, zidebe zoperekera madzi, ndi mabotolo a ana. Zikuyembekezeredwa kuti chiwerengero cha ntchito m'derali sichidzasinthasintha kwambiri m'tsogolomu. Ziyenera kunenedwa kuti mabotolo a ana a polycarbonate anali otchuka pamsika chifukwa chopepuka komanso kuwonekera.
8 、 DVD ndi VCD
M'zaka zingapo zapitazi, pomwe mafakitale a DVD ndi VCD anali ambiri, zida za PC zidagwiritsidwa ntchito kwambiri popanga ma disc owonera. Ndi chitukuko cha nthawi, kugwiritsa ntchito ma discs optical kwakhala kosowa kwambiri, ndipo kugwiritsa ntchito zipangizo za PC m'derali kudzachepanso chaka ndi chaka m'tsogolomu. Ndi kutuluka kwa jakisoni woyamba wa PC wosamva kupanikizika kwambiri, gawo logwiritsira ntchito la PC lakula kwambiri. PC ingagwiritsidwe ntchito kupanga chipolopolo cha oxygenator cha opaleshoni ya mtima. PC imagwiritsidwanso ntchito ngati thanki yosungiramo magazi ndi nyumba zosefera panthawi ya dialysis ya impso, ndipo kuwonekera kwake kwakukulu kumatsimikizira kuyang'ana kwachangu kwa kayendedwe ka magazi, kupanga dialysis kukhala yosavuta komanso yothandiza.
Kuyambira Epulo 2009, Republic of South Africa yapereka pasipoti yatsopano kwa anthu pafupifupi 49 miliyoni, yopangidwa ndi filimu ya polycarbonate yopangidwa ndi Bayer MaterialScience. Mulingo uwu ndi wokweza chitetezo cha Mpikisano wa FIFA World Cup wa 2010 womwe unachitikira mdziko muno. Kuonjezera apo, minda ina yatsopano monga machitidwe odziwunikira okha pansi pa maiwe osambira, machitidwe okolola mphamvu za dzuwa, zowonetseratu zazikulu za TV, ndi chip cholembedwa ulusi mu nsalu zomwe zingathe kuzindikira zipangizo za nsalu sizingachite popanda kukhalapo kwa zipangizo za PC. Zogulitsa pa PC zikupereka zopereka kumakampani osiyanasiyana, ndipo kuthekera kwawo kogwiritsa ntchito kupititsidwa patsogolo.