Nkhani

PC ndi mtundu wa pulasitiki wauinjiniya womwe umagwira bwino kwambiri mbali zonse. Ili ndi zabwino zambiri pakukana kwamphamvu, kukana kutentha, kukhazikika kwa mawonekedwe komanso kuchepa kwamoto. Choncho, amagwiritsidwa ntchito kwambiri pazida zamagetsi, magalimoto, zida zamasewera ndi zina. Komabe, unyolo wa ma PC molekyulu uli ndi mphete zambiri za benzene, zomwe zimapangitsa kuti zikhale zovuta kuti unyolo wa maselo usunthe, zomwe zimapangitsa kusungunuka kwakukulu kwa PC. Panthawi yokonza, unyolo wa ma PC molekyulu umayendetsedwa. Pambuyo pokonza, ena mwa maunyolo a maselo omwe sakhala odetsedwa kwathunthu muzogulitsazo amakonda kubwerera ku chikhalidwe chawo, zomwe zingayambitse kupsinjika kwakukulu kotsalira muzinthu zopangidwa ndi jekeseni wa PC, zomwe zimapangitsa kuti pakhale ming'alu panthawi yogwiritsira ntchito mankhwala kapena kusungirako; nthawi yomweyo, PC ndi zinthu notch-tcheru. Zofooka izi zimachepetsa kufalikira kwina kwaMapulogalamu a PC.

Pofuna kupititsa patsogolo kukhudzidwa kwa notch ndi kupsinjika kwa PC ndikuwongolera magwiridwe antchito ake, ma toughening agents nthawi zambiri amagwiritsidwa ntchito kulimbitsa PC. Pakadali pano, zowonjezera zomwe zimagwiritsidwa ntchito kwambiri posintha ma PC pamsika zikuphatikiza ma acrylate toughening agents (ACR), methyl methacrylate-butadiene-styrene toughening agents (MBS) ndi toughening agents zopangidwa ndi methyl methacrylate ngati chipolopolo ndi acrylate ndi silikoni ngati pachimake. Othandizira olimba awa ali ndi mgwirizano wabwino ndi PC, kotero othandizira olimba amatha kumwazikana mu PC.

Pepalali lidasankha mitundu 5 yosiyanasiyana ya ma toughening agents (M-722, M-732, M-577, MR-502 ndi S2001), ndikuwunikanso zotsatira za ma toughening agents pa PC matenthedwe oxidation okalamba katundu, 70 ℃ madzi otentha kukalamba katundu, ndi kutentha konyowa (85 ℃/85%) ukalamba katundu kudzera kusintha kwa PC kusungunula kuthamanga otaya, kutentha mapindikidwe kutentha ndi makina katundu.

Zida zazikulu:

UP-6195: chonyowa kutentha kukalamba mayeso (mmwamba ndi otsika kutentha yonyowachipinda choyesera kutentha);

UP-6196: mayeso osungira kutentha kwambiri (ng'anjo yolondola);

UP-6118: kuyesa kugwedezeka kwa kutentha (kuzizira komanso kugwedezeka kotenthachipinda choyesera);

UP-6195F: TC yokwera komanso yotsika kutentha (chipinda choyesera chosinthira kutentha);

UP-6195C: kuyesa kwa kutentha ndi chinyezi (zipinda zitatu zoyesera zonse);

UP-6110: mayeso othamanga kwambiri opsinjika (kuthamanga kwambiri kumathamangaukalamba mayeso chipinda);

UP-6200: Mayeso okalamba a UV (chipinda choyesera chokalamba cha ultraviolet);

UP-6197: mayeso opopera mchere amchere (chipinda choyesera chopopera mchere).

Kuyesa magwiridwe antchito ndi mawonekedwe:

● Yesani kuchuluka kwa kusungunuka kwa zinthuzo molingana ndi muyezo wa ISO 1133, mayeso ndi 300 ℃/1. 2 kg;

● Yesani mphamvu yamakokedwe ndi elongation pakusweka kwa zinthu molingana ndi muyezo wa ISO 527-1, mayeso ndi 50 mm/mphindi;

● Yesani mphamvu ya flexural ndi flexural modulus ya zinthu molingana ndi ISO 178 standard, kuyesa ndi 2 mm / min;

● Yesani mphamvu yamphamvu ya zinthuzo molingana ndi muyezo wa ISO180, gwiritsani ntchito makina opangira notch kuti mukonzekere notch yooneka ngati "V", kuya kwa notch ndi 2 mm, ndipo chitsanzocho chimasungidwa pa -30 ℃ kwa 4 h isanachitike. kuyesa kwamphamvu kwa kutentha kochepa;

● Yesani kutentha kwa kutentha kwa zinthuzo malinga ndi ISO 75-1 muyezo, kutentha kwa kutentha ndi 120 ℃/min;

●Yellowness index (IYI) mayeso:Kutalika kwa jekeseni ndi wamkulu kuposa 2 cm, makulidwe ndi 2 mm Mbalame yamitundu yayikulu imayesedwa ndi kukalamba kwa mpweya wa okosijeni, ndipo mtundu wa mbale yamtundu usanayambe komanso ukalamba umayesedwa ndi spectrophotometer. Chidacho chiyenera kuyesedwa chisanayesedwe. Mbalame iliyonse yamtundu imayesedwa katatu ndipo ndondomeko yachikasu ya mbale yamtundu imalembedwa;

●Kusanthula kwa SEM:Mzere wopangidwa ndi jekeseni umadulidwa, golide amapopera pamwamba pake, ndipo mawonekedwe ake amawonekera pansi pa magetsi ena.