Msika wa "golide zisanu ndi zinayi" ukadali pa siteji, koma kuwuka kwadzidzidzi "sikuti ndi chinthu chabwino".Malingana ndi chikhalidwe cha mkodzo cha msika, "kusintha kowonjezereka", samalani ndi kuthekera kwa "kutsika kwachabechabe ndi kubwereranso".
Tsopano, kuchokera kumalingaliro amsika, mayendedwe amitengo amitundu ina akwaniritsidwa.Msika wapulasitiki umasonyezanso chikhalidwe cha kusiyana pakati pa kukwera ndi kugwa.Chikhalidwe chonsecho chikukwera pang'onopang'ono, pamene zipangizo zina zinasiya kukwera ndikubwerera.Zoonadi, izi siziri zotsatira za masewerawa pakati pa zopereka ndi zofunikira za msika, komanso zotsatira za kuyembekezera kwa msika chifukwa cha zinthu zosiyanasiyana.
Nthawi zambiri, ngakhale kuti chuma padziko lonse lapansi m'nthawi ya mliri ndizovuta kukhala ndi chiyembekezo, kukulitsa chidaliro chamsika panyengo yanthawi yayitali ya "golide, 9, siliva ndi khumi" ikadali yothandiza.Makamaka, pakali pano, "Mid Autumn Festival" ku China ikukumana ndi "Tsiku la Aphunzitsi", ndipo "National Day Golden Week" imabwera pambuyo pa theka la mwezi umodzi.Kulimbikitsana kwa "zikondwerero zitatu" ku msika wa ogula kumawonekera.
Chemical zopangira
Zomwe zimakwera zimalunjikitsidwa kumsika wapulasitiki, ndipo kukonzekera masheya tchuthi chisanachitike kwakhala ntchito yachizoloŵezi, yomwe ikuyembekezeka kupititsa patsogolo msika wamalonda wopepuka.Komabe, ziyenera kudziwidwa kuti mbali yofunikira kunsi kwa mtsinje ikadali yolamulidwa ndi kufunikira kokhazikika, ndipo mbali yogulira nthawi zambiri imalimbana ndi mitengo yokwera.Ngati chiwonjezekocho ndi chachikulu kwambiri, chiwongola dzanja chikhoza kukhala chochepa, ndipo mtengo wotsika ukhoza kukhala gawo la malingaliro a msika.
Thepolycarbonatemsika wakhala ukukwera sabata ino, ndipo mitengo malo mitundu yosiyanasiyana yasinthidwa.Pofika pa Seputembara 8, mabizinesi amtundu wa PC anali pafupifupi 17633.33 yuan / tani, m'mwamba kapena pansi ndi + 2.22% poyerekeza ndi mtengo wapakati kumayambiriro kwa mwezi.
Mtengo wa polycarbonate
Kumbali yakumtunda, kuchuluka kwa ntchito zapakhomo za bisphenol A sikukhazikika, ndipo fakitale imapatsa ogwiritsa ntchito makontrakitala.Zogulitsa za Phenol / acetone zikupitilizabe kukwera, zomwe ndi chithandizo chabwino kumsika wakumunsi wa bisphenol.Komabe, pambuyo paulendo wam'mbuyo wopita kumtunda, kuwonjezeka kwa bisphenol A kumakhala kochepa, ndipo msika umagwira ntchito mwamphamvu.Kuchokera kumtunda, chilakolako chofuna chidwi sichili chapamwamba, kukambirana kwapamwamba sikukwanira, ndipo kuperekedwa kwa nthawi yochepa kwa bisphenol A kumakhalabe kolimba.
Mtengo wa Bisphenol A
Sabata ino, msika wa bisphenol A udakhalabe wolimba, ndipo kukakamiza pamtengo wa PC kunapitilirabe.Pankhani ya katundu wamakampani, kuchuluka kwa mabizinesi apakhomo a PC akuchulukirachulukira sabata ino, ndipo adakhazikika osakwana 70%.Pakalipano, malo ogulitsa katundu amakhalabe ochuluka, ndipo kupanikizika kumbali yoperekera kumapitirirabe.Komabe, mabizinesi ena ali ndi mapulani oimika magalimoto kumapeto kwa sabata, ndipo kuperekedwa kukuyembekezeka kukhwimitsidwa.Kufuna kwa mtsinje kudakali munjira yofooka.Mabizinesi apatsogolo omwe adakhudzidwa ndi zoletsa zam'mbuyomu komanso kutentha kwakukulu amatsitsimutsidwa pang'onopang'ono, koma kufunikira kwenikweni sikunasinthe kwambiri.Pambuyo pa kukwera kwa PC, kuvomereza kwachepa, ndipo ntchito yokonzekera masheya ndi yokondera pakungosunga kupanga, kotero kusaka kwabwino.Mabizinesi a PC amakakamizidwa ndi kukakamizidwa kwa mtengo kuti agwire ntchito ndikukwera mtengo kwafakitale.Mabizinesi amatsata msika, ndipo zochitika zenizeni nthawi zambiri zimabalalika maoda ang'onoang'ono.
Sabata ino, msika wapakhomo wa PC udakwera, msika wakumtunda wa BPA unali wamphamvu, ndipo mbali yamtengo wapatali idapitilira kukakamiza PC.Kumbali yoperekera, pali katundu wambiri pamalopo, pomwe mbali yofunikira ndiyofooka.Ogula nthawi zambiri amavomereza kukwera mtengo ndipo amakhala ndi malingaliro odikira ndikuwona.Pakakhala kuti palibe kuwonjezeka kowonekera kwa mowa, zikuyembekezeredwa kuti pakapita nthawi, kukwera kwa mtengo wa malo a PC kudzatsekedwa ndipo ntchitoyo idzaundana.

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Nthawi yotumiza: Sep-09-2022