I-Nucleating agent uhlobo lwesengezo esisha esisebenzayo esingathuthukisa izakhiwo zomzimba nezemishini zemikhiqizo efana nokucaca, ukucwebezela kobuso, amandla okuthamba, ukuqina, izinga lokushisa lokushintsha ukushisa, ukumelana nokushayisana, ukumelana nokuqhekeka, njll. ngokushintsha ukuziphatha kwe-crystallization yama-resin. Isetshenziswa kabanzi enqubweni yokukhiqiza amapulasitiki angacwebezeli ngokuphelele njenge-polyethylene ne-polypropylene ezimotweni, ezisetshenziswa ekhaya, ekudleni, kuma-elekthronikhi, nasemikhakheni yezokwelapha. Isibonelo, i-nucleating agent iyinto ebalulekile ekukhiqizweni kwama-resin asebenza kahle njenge-high melt index polypropylene, i-polypropylene entsha ene-high-rigidity, high-toughness, kanye ne-high-crystallinity polypropylene, i-β-crystalline polypropylene, kanye nezinto ze-polypropylene eziguquliwe zezinhlelo zokusebenza zezimoto ezinazindonga ezincane. Ngokufaka ama-ejenti athile e-nucleating, ama-resin anokubonakala okuthuthukisiwe, ukuqina, kanye nokuqina angakhiqizwa. Njengoba ukwanda okukhulu kokukhiqizwa kwe-polypropylene esebenza kahle ekhaya kudinga ukwengezwa kwama-nucleating agents kanye nokukhula okusheshayo kwesidingo sezimoto ezikhanyisayo kanye nezihlukanisi zebhethri le-lithium, kunethuba elikhulu lokuthuthuka emakethe yama-nucleating agents.
Kunezinhlobo eziningi ze-izinto ezibangela i-nucleating, futhi ukusebenza komkhiqizo wabo kuyaqhubeka nokuthuthuka. Ngokwezinhlobo ezahlukene zekristalu ezibangelwa ama-nucleating agents, angahlukaniswa abe ama-nucleating agents e-α-crystalline kanye nama-nucleating agents e-β-crystalline. Futhi ama-nucleating agents e-α-crystalline angahlukaniswa kabanzi abe izinhlobo ze-inorganic, organic, kanye ne-polymer ngokusekelwe ekuhlukeni kwawo kwesakhiwo. Ama-nucleating agents angenamvelo afaka kakhulu ama-nucleating agents athuthukiswe kusenesikhathi njenge-talc, i-calcium oxide, kanye ne-mica, angabizi futhi kulula ukuwathola kodwa anokukhanya okuncane kanye nokukhanya okungaphezulu. Ama-nucleating agents e-organic afaka kakhulu usawoti wensimbi we-carboxylic acid, usawoti wensimbi we-phosphate, ama-sorbitol benzaldehyde derivatives, njll. Phakathi kwawo, ama-sorbitol benzaldehyde derivatives okwamanje angama-nucleating agents avuthiwe kakhulu, anokusebenza okuhle kakhulu namanani aphansi, futhi abe uhlobo lwe-nucleating agents oluthuthukiswe kakhulu, oluhlukahlukene, nolukhulu kakhulu ngaphakathi nangaphandle. Ama-nucleating agents e-polymer ikakhulukazi angama-nucleating agents e-polymeric asezingeni eliphezulu, njenge-polyvinylcyclohexane kanye ne-polyvinylpentane. Ama-nucleating agents e-β-crystalline aqukethe izinhlobo ezimbili: inani elincane lama-polycyclic compounds anezakhiwo ze-quasi-planar, kanye nalawo akhiwe ngama-dicarboxylic acid nama-oxide athile, ama-hydroxide, kanye nosawoti wezinsimbi ezivela ku-Group IIA yethebula le-periodic. Ama-nucleating agents e-β-crystalline aqinisekisa izinga lokushisa lokuguquguquka kokushisa kwemikhiqizo ngenkathi ethuthukisa ukumelana kwawo nomthelela.
Izibonelo Zemisebenzi Yomkhiqizo kanye Nokusetshenziswa Kwama-Nucleating Agents
| Imikhiqizo | Incazelo Yomsebenzi | Izicelo |
| I-ejenti ye-Nucleating Ebonakalayo | Kungathuthukisa kakhulu ukucaca ye-resin, kunciphisa umswakama ngamaphesenti angaphezu kuka-60, ngenkathi kukhulisa izinga lokushisa lokushintshashintsha kokushisa kanye nezinga lokushisa lokwakheka kwekristalu ye-resin ngo-5 ~ 10℃, kanye nokuthuthukisa i-flexural modulus ngo-10% ~ 15%. Kuphinde kufushanise umjikelezo wokubumba, kuthuthukisa ukusebenza kahle kokukhiqiza, futhi kugcina ukuzinza kobukhulu bomkhiqizo. | I-Polypropylene Enenkomba Ephakeme Yokuncibilika (noma i-High MI Polypropylene) |
| I-Agent Nucleating Eqinisayo | Kungathuthukisa kakhulu izakhiwo zemishini ze-resin, kanye nokwanda kwe-flexural modulus kanye namandla okugoba angaphezu kuka-20%, kanye nokwenyuka kwezinga lokushisa lokuphambukisa ukushisa ngo-15~25℃. Kukhona futhi ukuthuthuka okuphelele nokulinganiselayo ezicini ezahlukahlukene njengokushisa kwe-crystallization kanye namandla omthelela, okuholela ekuncipheni okulinganiselayo kanye nokwehla kokuguquguquka kwe-warpage yomkhiqizo. | I-High Melt Index Polypropylene, I-High-Rigidity, I-High-Toughness, kanye ne-High-Crystallization Polypropylene, Izinto ze-Modified Polypropylene ze-Automotive Thin-Wall Applications |
| I-β-Crystalline Toughening Nucleating Agent | Kungakhuthaza ngempumelelo ukwakheka kwe-β-crystalline polypropylene, ngesilinganiso sokuguqulwa kwe-β-crystalline esingaphezu kuka-80%, ukuthuthukisa kakhulu amandla omthelela we-polypropylene resin, futhi ukuthuthukiswa kungafinyelela izikhathi ezingaphezu kwezintathu. | I-High Melt Index Polypropylene, i-New High-Rigidity, i-High-Toughness, kanye ne-High-Crystallization Polypropylene, i-β-Crystalline Polypropylene |
Isikhathi sokuthunyelwe: Agasti-23-2024