Hangata re ithuta ka li-plastiki ho latela ponahalo, 'mala, tsitsipano, boholo, joalo-joalo, joale ho thoe'ng ka li-plastiki ho latela pono ea lik'hemik'hale?
Resin ea maiketsetso ke karolo ea mantlha ea polasetiki, 'me litaba tsa eona ka polasetiki hangata ke 40% ho isa ho 100%.Ka lebaka la litaba tse kholo le thepa ea li-resin tse atisang ho khetholla thepa ea polasetiki, hangata batho ba nka li-resin li tšoana le li-plastiki.
Plastiki ke motsoako oa polymer o entsoeng ka monomer e le lisebelisoa tse tala 'me o entsoe ka polymerized ka ho eketsa kapa karabelo ea polycondensation.Ho hanyetsa ha eona ho deformation ho itekanetse, pakeng tsa fiber le rabara.E entsoe ka li-additives tse kang li-agent le li-pigments.
Tlhaloso le Sebopeho sa Plastiki: Polasetiki ke polymer efe kapa efe ea maiketsetso kapa ea semi-synthetic.Ka mantsoe a mang, polasetiki e lula e na le carbon le hydrogen, le hoja likarolo tse ling li ka ba teng.Leha lipolasetiki li ka etsoa ho tsoa hoo e batlang e le polymer efe kapa efe ea manyolo, lipolasetiki tse ngata tsa indasteri li entsoe ka lik'hemik'hale tsa petrole.Thermoplastics le thermoset polymers ke mefuta e 'meli ea polasetiki.Lebitso "polasetiki" le bolela polasetiki, bokhoni ba ho holofala ntle le ho senya.Li-polymers tse sebelisetsoang ho etsa li-plastiki li batla li kopantsoe le li-additives, ho kenyelletsa le li-colorants, li-plasticizers, stabilizers, fillers le reinforcing agents.Li-additives tsena li ama sebopeho sa lik'hemik'hale, lik'hemik'hale le thepa ea mechine ea polasetiki, hammoho le litšenyehelo.
Thermosets le Thermoplastics: Thermoset polymers, tse tsejoang hape e le thermosets, li phekola ka sebopeho se sa feleng.Li na le li-amorphous 'me ho lumeloa hore li na le boima bo sa feleng ba molek'hule.Thermoplastics, ka lehlakoreng le leng, e ka futhumatsoa le ho etsoa bocha khafetsa.Tse ling tsa thermoplastics li na le amorphous, ha tse ling li na le sebopeho sa kristale e sa fellang.Thermoplastics hangata e na le boima ba limolek'hule pakeng tsa 20,000 le 500,000 AMU.
Nako ea poso: Sep-17-2022