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Igama lemveliso:i-polyethylene
Ifomati yemolekyuli:NC2h4
I-CAY Hayi:I-9002-88-4-4
Isakhiwo seMveliso yeMolekyuli:
Iipropathi zekhemikhali kunye nezomzimba zichaphazelekile ngokuxinana, nto leyo echaphazelekayo yimo kunye nesithuba se-molecular thein. Izinto ezixineneyo ezisezantsi zineentambo ezixineneyo nezibanzi, ngelixa izinto ezixineneyo zineempawu ezithe tye kwaye zilungelelaniswe ngokusondeleyo. I-Pollithylene (0.926-0.9409 g / cm3) inyibilika kwiinyibiliki ezi-orgatic kwi-200 ° F. Inganyikithi kubushushu begumbi. I-Polythylene (i-0.041-0.965 g / cm3) yi-hydrophobic, icinyiwe kwigesi, kwaye inobugwenxa obuphezulu.
I-Polythyley ye-Molethyley ye-Polythylenenes ilunge kakhulu kunye nokuxhathisa kwamanzi kunye neekhemikhali ezininzi. I-polymers yemolekyuli yemolekyuli yi-waxs ebonakalayo kunye ne-paraffin wax, kwaye i-polylethys i-polymers ephantsi kwe-moleky iphezulu kune-10,000 i-resist eqinileyo kwaye iqinile. Ngokwahluka kakhulu kunye neendlela zokwenza ipolization, iipropathi ezinje ngokuxinana, i-crystallinity, ubunzima bemolekyuli, kwaye i-polydisity inokulawulwa ngaphezulu kwenqanaba ngokubanzi. Ii-polymers ezixineneyo zisusela kwi-0.910 ukuya kwi-0.910 ukuya kwi-0.925 g / cm3 zii-polyeylenes; Abo banobunzima basusela kwi-0.926 ukuya kwi-0.926 ukuya kwi-0.940 g / cm3 zii-polyeylenes eziphakathi; Kwaye abo banobunzima basusela kwi-0.941 ukuya kwi-0.941 ukuya kwi-0.965 g / cm3 nangaphezulu i-Polythylenes.
I-Polythyylene (PE) i-thermoplastic polymer enemixokelelwane ye-hydrocarbon ende. I-PE isetyenziswa kwizicelo ezininzi kubandakanya ukupakisha ifilimu eziveliswe yinkqubo yefilimu ye-blown. I-Polythylene isetyenziselwa ukulawula i-viscofity, ipropathi yokumiswa, kunye nokuzinza ngokubanzi kwiziko lendlela. Izicelo eziqhelekileyo zibandakanya iinxalenye ezizodwa zenaliti, kwezi ntsimi zePolythylene zinoluhlu olubanzi lokusebenzisa:
Inaliti kunye nokuvuthuza iithoyi zedyokhwe, izindlu kunye nezibuko.
Inaliti yezihlalo zemoto ezixineneyo, ii-mower kunye neepali.
Inaliti yejeyiwe, ineendlela ezinqabileyo kunye nendlu.
Ukunyibilikisa i-sholt enqwenelekayo kwiphepha, i-articarication kwi-fools, amakhandlela, ii-Inki ezisekwe kwioyile kunye nokunyibilika.
I-Adratication ye-Polysters engaqhelekanga, i-epoxides kunye nezinye iipolimers zidlulisela iipropathi ezizodwa ze-Uhmup. Isetyenziswe kwiziko lemizi-mveliso, i-cayings kwaye inxibe iindawo eziphezulu kwi-10 ukuya kwele-40 wt. %.
Izicelo zefilimu ezinokubekwa kakuhle kunye nobunzima.
Ukukhutshwa komnyama, ioyile kwi-rabber yokuqhubekeka, ukuphuma kunye noncedo lwe-caleinder kwi-PVC kunye nokusasaza koncedo lombala.
Iibheringi, iigiya, i-bushings kunye namanye amalungu ahambayo.
I-Laboratory tub; ekwenzeni ubuxoki; ukufakwa kombane; Izinto zokupakisha; ikhitshi; itanki kunye nemibhobho ye-lin Ikhredithi yephepha; Abacimilikisi beebhola.
I-Polythylene isetyenziselwa ukulawula i-viscofity, ipropathi yokumiswa, kunye nokuzinza ngokubanzi kwiziko lendlela. Ithathwe kwigesi yepetroleum okanye ihrdication yotywala.
I-cheswin inokubonelela ngoluhlu olubanzi lwee-hydrocarbons ze-chydrocarbons kunye neechimi zemichiza kubathengi bemizi-mveliso.Ngaphambi koko, nceda ufunde le ngcaciso ilandelayo malunga neshishini kunye nathi:
1. Ukhuseleko
Ukhuseleko yinto yethu ephambili. Ukongeza ekunikezeleni abathengi ngolwazi malunga nokusetyenziswa okukhuselekileyo nokusingqongileyo kweemveliso zethu, sizibophelela ekuqinisekiseni ukuba umngcipheko wokukhuseleka kwabasebenzi kunye neekhontrakthi zincitshiswa ubuncinci kwaye zincitshiswe ubuncinci bezinto ezifanelekileyo. Ke ngoko, sifuna ukuba umthengi aqinisekise ukuba imigangatho yokhuseleko efanelekileyo kwaye ifezekisiwe ngaphambi kokuba ihanjiselwe (nceda ujonge kwisihlomelo se-HISCEXIX ngokwemigaqo ngokubanzi yentengiso engezantsi). Iingcali zethu ze-HZE zinokubonelela ngesikhokelo kule migangatho.
I-2. Indlela yokuhambisa
Abathengi banoku-odola kwaye bahambise iimveliso ezivela kwiComwin, okanye banokufumana iimveliso kwisityalo sethu semveliso. Iindlela ezikhoyo zothutho zibandakanya ilori, uloliwe okanye izithuthi ezininzi (iimeko ezahlukeneyo ziyasebenza).
Kwimeko yeemfuno zabathengi, sinokuchaza iimfuno zebhanti okanye iitanki kwaye zisebenzise imigangatho yoKhuseleko eKhuseleko / yokuPhononongwa kunye neemfuno.
I-3. Ubuncinci besixa
Ukuba uthenga iimveliso kwiwebhusayithi yethu, ubuncinci begama le-odolo ziitoni ezingama-30.
4.Ke
Indlela yokuhlawula esemgangathweni isuswe ngqo kwiintsuku ezingama-30 ukusuka kwi-invoice.
I-5. Uxwebhu lokuHanjiswa
La maxwebhu alandelayo anikwa ukuhanjiswa ngalunye:
· Offill ye-lading, i-CMR Daybill okanye olunye uxwebhu olufanelekileyo lwezothutho
Kokwenza uvavanyo lohlalutyo okanye ukuvumelana (ukuba kuyafuneka)
Amaxwebhu ahambelana noxwebhu oluhambelana nokuhambelana nemigaqo
Amaxwebhu esiko ngokuhambelana nemigaqo (ukuba iyafuneka)