Ma polima yokumba akhala mbali ya moyo wathu

Amapanga ma polima - ndi zipangizo ndi zinthu akamagwira kaphatikizidwe kwambiri zinthu umodzi kapena kuposerapo. Nthawi zambiri chifukwa cha chimodzi anawonjezera thereto zina zosiyanasiyana ndi kubwereketsa ndi mtundu mankhwala atsopano ndi wapadera katundu. Izi zimachitika chifukwa chakuti kusintha zikuchitika pa mlingo maselo, ndi macromolecule latsopano.

Kupanga ma polima anawagawa biopolymers ndi ma polima kupanga. Maziko a mitundu onse ndi mpweya. Ichi ndi molekyulu wake kusintha, kupereka khalidwe latsopano kwa izo. Biopolymers akamagwira kusintha, i.e. nkhani kuyambira kupereka katundu chosowacho. Izi makamaka mwachita kuti kupereka ductility zakuthupi ndiponso kulimba. Chitsanzo ndi kukonzekera za polima amatchedwa "yokhuthala" amene amapangidwa kuchokera ku zipangizo zachilengedwe yaiwisi - mapadi (amene ali pachokha ndi polima zachilengedwe), zina ndi kulenga zimakhala. mitundu kupanga zipangizo zamakono njira ziwiri. Izi polymerization ndi polycondensation njira. Iwo amalola kupeza mankhwala atsopano ku asafe mpweya wa carbon dioxide ndi wa hydrogen. Mu njira iyi, kutulutsa polypropylene - ndi polima ponena pafupifupi minda zochita za anthu.

Opangidwa ma polima ankagwiritsa ntchito makampani ndi moyo watsiku ndi tsiku. zinthuzi amphamvu, cholimba, kusintha, zimakhalanso zotsika mtengo poyerekeza ndi zipangizo achilengedwe. Mawu "chachibadwidwe" pang'onopang'ono kukhala
ndi chizindikiro, amene kumawonjezera kwambiri mtengo wa chotsirizidwa. Anthu ambiri amakhulupirira kuti zipangizo zachilengedwe kuonetsetsa khalidwe ndi zisathe. Pa anthu ochepa yomweyo kuganizira mmene kwenikweni kupeza ma polima yokumba. Zitsanzo zipangizo zimenezi zikusonyeza kuti mbali yaikulu wopangidwa kuchokera ku zipangizo zachilengedwe ntchito zina kupanga. Zinthu zachilengedwe yaiwisi onse a anthu sadziwa.

Amapanga polima amatchedwa "silikoni" ndi "lalabala" ntchito mwakhama mankhwala ndi cosmetology. Wa amadzala awa, amadziwitsa ntchito yopanga zipangizo zachipatala, mankhwala thanzi ndi zinthu zina.

resins Amapanga mu mawonekedwe a mapulasitiki ntchito makampani magalimoto kwa kupanga banja ndi zipangizo zamagetsi, ndi zina. zinthu zambiri m'makomo athu anapangidwa ndi pulasitiki: zomangira, katundu wa m'nyumba, zidole. Zinthu zimenezi zingakhale wochezeka ndipo angabweretse kuwononga moyo. Izo zimatengera mtundu wa nkhaniyo. Popeza kuti maziko kwa chilengedwe cha polima ndi inert mawu a zachilengedwe. Koma zina zamakono: Various antioxidants, stabilizers, colorants ndi zina zotero - zingakhale zovulaza thanzi. Angathe kuyambitsa thupi lawo siligwirizana kapena poizoni. Choncho, item pulasitiki amusankha ndi fungo. Mkhalidwe polima alibe fungo.