Iindaba

I-PC luhlobo lweplastiki yobunjineli esebenza kakuhle kuzo zonke iinkalo. Ineenzuzo ezinkulu ekuxhathiseni impembelelo, ukumelana nobushushu, ukubumba ukuzinza kwe-dimensional kunye nokubuyiswa komlilo. Ke ngoko, isetyenziswa kakhulu kwizixhobo zombane, iimoto, izixhobo zemidlalo kunye namanye amacandelo. Nangona kunjalo, i-PC ye-molecular chain iqulethe inani elikhulu lamakhonkco e-benzene, okwenza kube nzima ukuba i-molecular chain chain ihambe, okubangelwa yi-viscosity enkulu ye-PC. Ngexesha lenkqubo yokucubungula, i-PC ye-molecular chain i-oriented. Emva kokucutshungulwa, amanye amatyathanga eemolekyuli angakhange ajike ngokupheleleyo kwimveliso adla ngokubuyela kwimeko yawo yendalo, nto leyo eya kubangela ukuba kubekho uxinezeleko olukhulu olushiyekileyo kwiimveliso ezibunjiweyo zenaliti yePC, ezibangela iintanda ngexesha lokusetyenziswa kwemveliso okanye ukugcinwa kwazo; kwangaxeshanye, iPC iyinto enochuku. Ezi ntsilelo zinciphisa ukwanda ngakumbi kweUsetyenziso lwePC.

Ukuze kuphuculwe ubuntununtunu benotshi kunye nokuqhekeka koxinzelelo lwePC kwaye kuphuculwe ukusebenza kwayo, ii-ejenti eziqinisayo zihlala zisetyenziselwa ukuqinisa iPC. Okwangoku, izongezelelo eziqhele ukusetyenziswa kwi-PC toughening modification kwimarike ziquka i-acrylate toughening agents (ACR), i-methyl methacrylate-butadiene-styrene toughening agents (MBS) kunye nee-toughening agents ezenziwe nge-methyl methacrylate njengeqokobhe kunye ne-acrylate kunye ne-silicone njengondoqo. Ezi arhente zokuqina zihambelana kakuhle nePC, ngoko ke iiarhente eziqinisayo zinokusasazwa ngokulinganayo kwiPC.

Eli phepha likhethe iibrendi ezi-5 ezahlukeneyo ze-toughening agents (M-722, M-732, M-577, MR-502 kunye ne-S2001), kwaye yavavanya imiphumo ye-agent eqinile kwi-PC thermal oxidation eguga iipropati, i-70 ℃ yamanzi abilayo iimpawu zokuguga, kunye nobushushu obumanzi (85 ℃/85%) iipropathi zokuguga ngotshintsho kwisantya sokuncibilika kwePC, ubushushu bokutshintsha ubushushu kunye neempawu zoomatshini.

Izixhobo eziphambili:

UP-6195: uvavanyo lokuguga olumanzi (ubushushu obuphezulu kunye nobushushu obuphantsi bumanziigumbi lokuvavanya ubushushu);

I-UP-6196: uvavanyo lokugcina ukushisa okuphezulu (i-oven echanekileyo);

I-UP-6118: uvavanyo lokutshatyalaliswa kobushushu (umothuko obandayo kunye nobushushuigumbi lovavanyo);

I-UP-6195F: Umjikelezo we-TC ophezulu kunye nomgangatho ophantsi (igumbi lokuvavanya utshintsho olukhawulezayo lokushisa);

I-UP-6195C: uvavanyo lobushushu kunye nokufuma kwe-vibration (amagumbi amathathu ovavanyo olubanzi);

I-UP-6110: uvavanyo oluphezulu loxinzelelo oluphezulu (uxinzelelo oluphezulu lukhawulezaigumbi lovavanyo lokuguga);

I-UP-6200: uvavanyo lokuguga lwe-UV (igumbi lokuvavanya ukuguga kwe-ultraviolet);

I-UP-6197: uvavanyo lwe-corrosion yetyuwa yokutshiza (igumbi lokuvavanya ityuwa yokutshiza).

Uvavanyo lomsebenzi kunye nokubonakaliswa kwesakhiwo:

● Ukuvavanya umlinganiselo wokunyibilika kobunzima bezinto eziphathekayo ngokwe-ISO 1133 standard, imeko yovavanyo yi-300 ℃/1. 2 kg;

● Ukuvavanya amandla okuqina kunye nobude ekuqhekekeni kwezinto ngokwe-ISO 527-1 standard, izinga lokuvavanya ngu-50 mm / min;

● Ukuvavanya amandla okuguquguquka kunye nemodyuli ye-flexural yezinto eziphathekayo ngokwe-ISO 178 standard, izinga lokuvavanya ngu-2 mm / min;

● Vavanya amandla empembelelo yenotshi ngokwemigangatho ye-ISO180, sebenzisa umatshini wokwenza isampulu yenotshi ukulungiselela inotshi emile okwe-“V”, ubunzulu benotshi yi-2 mm, kwaye isampuli igcinwe kwi--30 ℃ kwi-4 h phambi. uvavanyo lwempembelelo yobushushu obuphantsi;

● Ukuvavanya ubushushu bokushisa ubushushu bezinto eziphathekayo ngokwe-ISO 75-1 standard, izinga lokushisa ngu-120 ℃ / min;

●Uvavanyo lwesalathiso somthubi (IYI):Isitofu sokubumba ubude becala bukhulu kune-2 cm, ubukhulu bu-2 mm Ipleyiti yombala wesikwele iphantsi kovavanyo lokuguga lwe-oxygen, kunye nombala wepleyiti yombala ngaphambi nangemva kokuguga uvavanywa nge-spectrophotometer. Isixhobo kufuneka silinganiswe phambi kovavanyo. Ipleyiti yombala nganye ilinganiswa ngamaxesha angama-3 kwaye isalathisi esiphuzi seplate yombala sirekhodwa;

●Uhlalutyo lwe-SEM:Umcu wesampulu owenziwe ngenaliti uyasikwa, igolide itshizwe kumphezulu wayo, kwaye i-morphology yayo yomphezulu ijongwa phantsi kombane othile.