Kukula kwa mapulasitiki kumatha kuyambika mpaka pakati pa 19th.Panthawiyo, kuti akwaniritse zosowa zamakampani opanga nsalu ku UK, akatswiri a zamankhwala adasakaniza mankhwala osiyanasiyana, kuyembekezera kupanga bleach ndi utoto.Akatswili a zamankhwala amakonda kwambiri phula la malasha, lomwe ndi zinyalala zonga ngati curd zomangika m'machumu amafakitale opangidwa ndi gasi.
William Henry Platinum, wothandizira labotale ku Royal Institute of Chemistry ku London, anali m'modzi mwa anthu omwe anachita izi.Tsiku lina, pamene platinamu inali kupukuta mankhwala amene anatayikira pa benchi ya mu labotale, anapeza kuti chinsanzacho chinapakidwa utoto wa lavenda umene sunkaoneka kawirikawiri panthaŵiyo.Kupezedwa mwangozi kumeneku kunapangitsa kuti platinamu alowe m'makampani opaka utoto ndipo pamapeto pake adakhala miliyoneya.
Ngakhale kupezeka kwa platinamu si pulasitiki, kutulukira mwangozi kumeneku kuli ndi tanthauzo lalikulu chifukwa kumasonyeza kuti mankhwala opangidwa ndi anthu angapezeke mwa kulamulira zinthu zachilengedwe.Opanga azindikira kuti zinthu zambiri zachilengedwe monga matabwa, amber, mphira, ndi magalasi mwina n’zosoŵa kwambiri kapena zodula kwambiri kapena siziyenera kupangidwa mochuluka chifukwa n’zokwera mtengo kwambiri kapena sizitha kusinthasintha mokwanira.Zipangizo zopangira ndi zabwino m'malo.Ikhoza kusintha mawonekedwe pansi pa kutentha ndi kupanikizika, ndipo imatha kusunga mawonekedwe pambuyo pozizira.
Colin Williamson, yemwe anayambitsa bungwe la London Society for the History of Plastics, anati: “Panthaŵiyo, anthu ankafunika kupeza njira yotsika mtengo ndiponso yosavuta kusintha.”
Pambuyo pa pulatinamu, Mngelezi wina, Alexander Parks, anasakaniza chloroform ndi mafuta a castor kuti apeze chinthu cholimba ngati nyanga za nyama.Ili linali pulasitiki yochita kupanga yoyamba.Parks akuyembekeza kugwiritsa ntchito pulasitiki yopangidwa ndi anthuyi m'malo mwa mphira womwe sungagwiritsidwe ntchito kwambiri chifukwa cha ndalama zobzala, zokolola, ndi kukonza.
Munthu wina wa ku New York, dzina lake John Wesley Hyatt, wosula zitsulo, anayesa kupanga mipira ya mabiliyadi ndi zinthu zopangapanga m’malo mwa mipira ya mabiliyoni yopangidwa ndi minyanga ya njovu.Ngakhale kuti sanathetse vutoli, adapeza kuti mwa kusakaniza camphor ndi kuchuluka kwa zosungunulira, zinthu zomwe zingasinthe mawonekedwe pambuyo potentha zimatha kupezeka.Hyatt amachitcha kuti celluloid.Pulasitiki yatsopanoyi ili ndi makhalidwe opangidwa mochuluka ndi makina ndi antchito opanda luso.Zimabweretsa makampani opanga mafilimu zinthu zowoneka bwino komanso zosinthika zomwe zimatha kupanga zithunzi pakhoma.
Celluloid idalimbikitsanso chitukuko chamakampani ojambulira kunyumba, ndipo pamapeto pake adalowa m'malo mwa zolemba zoyambirira za cylindrical.Pambuyo pake mapulasitiki angagwiritsidwe ntchito kupanga malekodi a vinyl ndi matepi a makaseti;Pomaliza, polycarbonate imagwiritsidwa ntchito popanga ma compact disc.
Celluloid imapangitsa kujambula kukhala ntchito yokhala ndi msika waukulu.George Eastman asanapange celluloid, kujambula kunali kodula komanso kovutirapo chifukwa wojambulayo adayenera kupanga yekha filimuyo.Eastman adabwera ndi lingaliro latsopano: kasitomala adatumiza filimu yomalizidwa ku sitolo yomwe adatsegula, ndipo adapanga filimuyo kwa kasitomala.Celluloid ndi chinthu choyamba chowonekera chomwe chingapangidwe kukhala pepala lochepa kwambiri ndipo chitha kukulungidwa mu kamera.
Panthawiyi, Eastman anakumana ndi mnyamata wina wa ku Belgium, Leo Beckeland.Baekeland adapeza mtundu wa pepala losindikizira lomwe limakhala lovuta kwambiri pakuwala.Eastman adagula zomwe Beckland adapanga pamtengo wa 750,000 US dollars (yofanana ndi $2.5 miliyoni yaku US).Pokhala ndi ndalama, Baekeland adamanga labotale.Ndipo mu 1907 anapanga phenolic pulasitiki.
Nkhani yatsopanoyi yapindula kwambiri.Zopangidwa ndi pulasitiki ya phenolic zimaphatikizapo matelefoni, zingwe zotsekera, mabatani, zopalasa ndege, ndi mipira yamabiliyadi apamwamba kwambiri.
Parker Pen Company imapanga zolembera zosiyanasiyana kuchokera ku pulasitiki ya phenolic.Pofuna kutsimikizira kulimba kwa mapulasitiki a phenolic, kampaniyo inawonetsa poyera kwa anthu ndikugwetsa cholembera kuchokera ku nyumba zapamwamba.Magazini ya “Time” inalemba nkhani ya pachikuto yodziŵikitsa amene anayambitsa pulasitiki ya phenolic ndi zinthu zimenezi zimene “zingagwiritsidwe ntchito kambirimbiri”
Zaka zingapo pambuyo pake, labotale ya DuPont inapanganso kutulukira kwina mwangozi: inapanga nayiloni, chinthu chotchedwa silika wochita kupanga.Mu 1930, Wallace Carothers, wasayansi yemwe amagwira ntchito mu labotale ya DuPont, adamiza ndodo yagalasi yotentha mumagulu aatali a molekyulu ndikupeza zinthu zotanuka kwambiri.Ngakhale kuti zovala zopangidwa ndi nayiloni yoyambirira zinkasungunuka chifukwa cha kutentha kwambiri kwachitsulo, woyambitsa wake Carothers anapitirizabe kufufuza.Pafupifupi zaka zisanu ndi zitatu pambuyo pake, DuPont adayambitsa nayiloni.
Nayiloni yakhala ikugwiritsidwa ntchito kwambiri m'munda, ma parachuti ndi zingwe za nsapato zonse zimapangidwa ndi nayiloni.Koma amayi ndi okonda kugwiritsa ntchito nayiloni.Pa May 15, 1940, amayi a ku America anagulitsa mapeyala 5 miliyoni a masitonkeni a nayiloni opangidwa ndi DuPont.Masitonkeni a nayiloni akusowa, ndipo amalonda ena ayamba kukhala ngati masitonkeni a nayiloni.
Koma nkhani yopambana ya nayiloni ili ndi mathero omvetsa chisoni: woyambitsa wake, Carothers, adadzipha potenga cyanide.Steven Finnichell, yemwe analemba buku lakuti “Plastic”, anati: “Ndinachita chidwi nditawerenga buku la Carothers: Carothers ananena kuti zipangizo zimene anatulukira zinagwiritsidwa ntchito popanga zovala za akazi.Masokisi anakhumudwa kwambiri.Anali wophunzira, zomwe zinamupangitsa kudzimva kukhala wosapiririka. "Iye ankaona kuti anthu angaganize kuti chimene iye anachichita chinali kupanga “malonda wamba.”
Pomwe DuPont idachita chidwi ndi zinthu zake zokondedwa kwambiri ndi anthu.Anthu a ku Britain anapeza ntchito zambiri za pulasitiki m'magulu ankhondo pa nthawi ya nkhondo.Kutulukira kumeneku kunangochitika mwangozi.Asayansi mu labotale ya Royal Chemical Industry Corporation ku United Kingdom anali kuchita kuyesa komwe kunalibe chochita ndi izi, ndipo adapeza kuti pansi pa chubu choyesera panali phula loyera.Pambuyo pakuyesa kwa labotale, zidapezeka kuti chinthu ichi ndi chinthu chabwino kwambiri chotetezera.Makhalidwe ake ndi osiyana ndi galasi, ndipo mafunde a radar amatha kudutsamo.Asayansi amachitcha kuti polyethylene, ndipo amachigwiritsa ntchito pomanga nyumba yopangira ma radar kuti agwire mphepo ndi mvula, kotero kuti radaryo imatha kugwirabe ndege za adani pansi pa chifunga chamvula komanso chambiri.
Williamson wa Sosaite for the History of Plastics anati: “Pali zinthu ziŵiri zimene zimasonkhezera kupangidwa kwa mapulasitiki.Chinthu chimodzi ndi kufuna kupeza ndalama, ndipo china ndi nkhondo.”Komabe, ndi zaka makumi otsatira zomwe zidapanga pulasitiki kukhala Finney.Chell adachitcha chizindikiro cha "zaka zana zazinthu zopangidwa."M’zaka za m’ma 1950, zotengera zakudya zopangidwa ndi pulasitiki, mitsuko, mabokosi a sopo ndi zinthu zina zapakhomo zinaonekera;m'zaka za m'ma 1960, mipando yopuma mpweya inayamba.M'zaka za m'ma 1970, akatswiri a zachilengedwe adanena kuti mapulasitiki sangadzichepetse okha.Chidwi cha anthu pa zinthu zapulasitiki chatsika.
Komabe, m'zaka za m'ma 1980 ndi 1990, chifukwa cha kufunikira kwakukulu kwa mapulasitiki m'mafakitale opanga magalimoto ndi makompyuta, mapulasitiki adaphatikizanso udindo wawo.N’zosatheka kukana nkhani wamba imeneyi yopezeka paliponse.Zaka makumi asanu zapitazo, dziko likhoza kupanga matani masauzande a pulasitiki okha chaka chilichonse;lero, kupanga pulasitiki pachaka padziko lonse kuposa matani miliyoni 100.Kupanga pulasitiki pachaka ku United States kumaposa kupanga zitsulo, aluminiyamu ndi mkuwa.
Mapulasitiki atsopanondi zachilendo zikupezekabe.Williamson wa Sosaite for the History of Plastics anati: “Okonza mapulani ndi opanga zinthu adzagwiritsa ntchito mapulasitiki m’zaka chikwi zikubwerazi.Palibe zinthu zabanja zomwe zili ngati pulasitiki yomwe imalola opanga ndi opanga kupanga zinthu zawo pamtengo wotsika kwambiri.yambitsa.
Nthawi yotumiza: Jul-27-2021