Sirrin wasu bishiyoyi yakan zama resins.Tun a shekara ta 1872, masanin ilimin kimiya na Jamus A. Bayer ya fara gano cewa phenol da formaldehyde na iya samar da kullu mai launin ja-launin ruwan kasa ko kuma abubuwa masu ɗanko da sauri lokacin da aka yi zafi a ƙarƙashin yanayin acidic, amma ba za a iya tsarkake su ta hanyoyin gargajiya ba.da dakatar da gwajin.Bayan karni na 20, ana iya samun phenol da yawa daga kwaltar kwal, sannan kuma ana samar da formaldehyde da yawa a matsayin abin kiyayewa, don haka samfuran halayen biyu sun fi kyau, kuma ana fatan samar da kayayyaki masu amfani, ko da yake da yawa. mutane sun kashe ayyuka masu yawa dominsa., amma bai cimma sakamakon da ake sa ran ba.
A cikin 1904, Beckland da mataimakansa suma sun gudanar da wannan bincike.Manufar farko ita ce yin fenti masu rufe fuska waɗanda ke maye gurbin resins na halitta.Bayan shekaru uku na aiki tuƙuru, a lokacin rani na 1907, ba kawai insulating Paint aka samar, da kuma samar da wani real roba roba abu - Bakelite, wanda aka sani da "bakelite", "bakelite" ko phenolic guduro.Da Bakelite ya fito, ba da daɗewa ba masana'antun sun gano cewa ba kawai zai iya kera nau'ikan kayan kariya na lantarki ba, har ma da yin abubuwan yau da kullun.Ina son T. Edison don yin rikodin, kuma ba da daɗewa ba ya sanar a cikin tallace-tallace cewa an yi dubban samfurori tare da Bakelite., Don haka an yaba ƙirƙirar Baekeland a matsayin “alchemy” na ƙarni na 20.
Kafin 1940, da phenolic guduro tare da kwal kwalta kamar yadda na asali barbashi ko da yaushe ranked farko a cikin fitarwa na daban-daban roba resins, kai fiye da 200,000 ton a kowace shekara, amma tun sa'an nan, tare da ci gaban petrochemical masana'antu, polymerized roba resins kamar polyethylene The. fitarwa na , polypropylene, polyvinyl chloride da polystyrene shima ya ci gaba da fadadawa.Tare da kafa manyan masana'antu da yawa tare da fitarwa na shekara-shekara na sama da ton 100,000 na waɗannan samfuran, sun zama nau'ikan resin roba guda huɗu tare da mafi girma a yau.
A yau, ana iya amfani da resins na roba da ƙari don samun samfuran filastik ta hanyoyin gyare-gyare daban-daban.Akwai nau'ikan robobi da dama, kuma abin da ake samarwa a duniya a shekara ya kai tan miliyan 120.Sun zama kayan aiki na yau da kullun don samarwa, rayuwa da ginin tsaron ƙasa.
Lokacin aikawa: Nuwamba-12-2022