Cov pob tshab nucleating cov neeg ua haujlwm tuaj yeem muab faib ua ob hom: cov organic tebchaw thiab cov tshuaj inorganic.
Inorganic Nucleating AgentsFeem ntau yog oxides ntawm cov hlau, xws li talc, silica, titanium dioxide, benzoic acid thiab lwm yam.Hom nucleating tus neeg saib xyuas no yuav tsum muaj qhov me me ntawm tsawg dua 40m thiab yog thawj hom nucleating tus neeg saib xyuas siv.Vim lawv tsis yaj nyob rau hauv polymer melts, lawv ib txwm tsim siv lead ua embryos thaum yaj recrystallization.Txawm li cas los xij, vim nws cov xim, nws tsis yog qhov zoo tshaj plaws los txhim kho cov pob tshab thiab gloss ntawm cov khoom tiav tom qab siv.Txawm hais tias ob peb lub tuam txhab tseem siv, tab sis nws yog cov khoom lag luam qis, qhov sib txawv ntawm nws cov koob tshuaj txo qis xyoo los ntawm xyoo, thiab yuav raug tshem tawm thaum kawg.
Lub ntsiabOrganic Nucleating Agentsyog fatty carboxylic acid, aromatic hlau xab npum, organophosphate thiab sorbitol benzylidene derivatives.Sorbitol thiab organophosphate yog cov tshuaj nucleating feem ntau siv hauv khw.
Ob leeg ntawm lawv muaj kev hloov kho pob tshab zoo dua, tab sis txhua tus muaj nws qhov zoo thiab qhov tsis zoo
Sorbitol Nucleating Agenttuaj yeem melted nyob rau hauv lub meltedPP, ces tsim ib homogeneous system, yog li cov nyhuv nucleation yog zoo, thiab fusion nrogPPyog zoo.Transparency zoo dua organophosphates.Qhov tsis zoo yog qhov tsw ntawm niam txiv aldehyde yooj yim tso tawm thaum ua haujlwm.
Organophosphate Nucleating Agentmuaj cov yam ntxwv ntawm kev ua kom sov zoo, tsis muaj ntxhiab tsw.Tab sis nws cov nyhuv nucleating thiab pob tshab yog tsawg duaSorbitol Nucleating Agent, tab sis nrog tus nqi siab thiab tsis zoo dispersion nyob rau hauvPP.
Cov txheej txheem nucleating ntawm ntau hom nucleating cov neeg ua haujlwm tau hais los saum toj no zoo ib yam.Txawm li cas los xij, vim qee qhov sib txawv ntawm cov khoom ntawm nucleating agents, kuj muaj qee qhov sib txawv hauv kev txhim kho cov khoom ntawmPPnyob rau hauv cov txheej txheem ua.Piv txwv li, sorbitol nucleating tus neeg sawv cev tuaj yeem tsis tsuas yog txhim kho cov pob tshab thiab gloss ntawm qhov chawPP, tab sis kuj txhim kho lwm yam lub cev thiab txhua yam khoom ntawmPP: kev txhim kho lub rigidity, thermal deformation kub thiab seem stability ntawmPP.Yog li ntawd, dibenzylidene sorbitol yog qhov nrov tshaj plawsTransparent Nucleating Agenthauv khw.
Post lub sij hawm: Nov-18-2020