tawv tawv
tshuaj yam ntxwv
Toughening tus neeg saib xyuas yog hais txog ib yam khoom uas tuaj yeem ua rau kom yooj yim ntawm cov nplaum nplaum.Qee cov thermosetting resin adhesives, xws li epoxy resin, phenolic resin thiab unsaturated polyester resin adhesives tom qab kho, tsis tshua muaj elongation, fragility ntau dua, thaum lub tsev txhab nyiaj nyob rau hauv sab nraud quab yuam yog yooj yim rau tawg, thiab nthuav dav, ua rau tawg, qaug zog, muaj peev xwm. tsis siv los ua kev sib txuas ua ke.Yog li ntawd, nws yog ib qho tsim nyog los txo cov brittleness, nce lub toughness thiab txhim kho cov kabmob muaj zog.Cov khoom siv uas tuaj yeem txo qhov brittleness thiab nce toughness yam tsis muaj kev cuam tshuam rau lwm yam khoom tseem ceeb ntawm cov nplaum yog tus neeg sawv cev toughening.Nws tuaj yeem muab faib ua cov roj hmab toughening tus neeg saib xyuas thiab cov thermoplastic elastomer toughening tus neeg saib xyuas
Khoom taw qhia thiab nta
(1) Rubber toughening agent no hom toughening agent ntau yam xws li kua polysulfide roj hmab, kua acrylic roj hmab, kua polybutadiene roj hmab, nitrile roj hmab, ethylene propylene roj hmab thiab styrene butadiene roj hmab, thiab lwm yam.
(2) Thermoplastic elastomer Thermoplastic elastomer yog ib yam khoom siv hluavtaws uas qhia tau hais tias roj hmab elasticity ntawm chav tsev kub thiab tuaj yeem ua plasticized ntawm qhov kub thiab txias.Yog li ntawd, hom polymer no muaj cov yam ntxwv ntawm cov roj hmab thiab cov thermoplastic, nws tuaj yeem siv los ua tus neeg sawv cev tawv ntawm cov ntaub ntawv sib xyaw, thiab tuaj yeem siv los ua cov khoom siv matrix ntawm cov ntaub ntawv sib xyaw.Cov khoom siv no feem ntau suav nrog polyurethane, styrene, polyolefin, polyester, interregular 1, 2-polybutadiene thiab polyamides thiab lwm yam khoom, tam sim no tus neeg sawv cev toughening ntawm cov ntaub ntawv sib xyaw siv ntau styrene thiab polyolefin.
(3) Lwm yam toughening agents Lwm toughening agents haum rau composites yog tsis tshua muaj molecular hnyav polyamides thiab tsis tshua muaj molecular hnyav inactive toughening agents, xws li phthalate esters.Ib tus neeg tsis muaj zog toughening kuj tseem hu ua plasticizer, uas tsis koom nrog kev kho cov tshuaj tiv thaiv ntawm cov resin.
siv
Tus neeg sawv cev toughening yog tsim rau cov nplaum, roj hmab, coatings thiab lwm yam khoom.Nws yog ib hom kev pabcuam tus neeg sawv cev uas tuaj yeem txo qhov brittleness ntawm cov ntaub ntawv sib xyaw thiab txhim kho qhov cuam tshuam ntawm cov ntaub ntawv sib xyaw.Nws tuaj yeem muab faib ua active toughening agent thiab inactive toughening agent.Active toughening tus neeg saib xyuas yog hais txog nws cov saw molecular uas muaj cov pab pawg uas muaj peev xwm ua rau muaj kev cuam tshuam nrog cov matrix resin, uas tuaj yeem tsim cov qauv sib txuas, ntxiv ib feem ntawm cov saw hloov tau yooj yim, thiab yog li txhim kho qhov cuam tshuam ntawm cov khoom sib xyaw.Inactive toughening tus neeg saib xyuas yog ib yam ntawm cov toughening tus neeg sawv cev uas yog soluble nrog matrix resin tab sis tsis koom nrog cov tshuaj tiv thaiv.
pob thiab thauj
B. Cov khoom no tuaj yeem siv tau, 25KG, BAERRLS.
C. Khaws ntim rau hauv qhov chaw txias, qhuav thiab qhov cua nyob hauv tsev.Cov thawv ntim khoom yuav tsum tau muab kaw kom nruj tom qab siv txhua zaus ua ntej siv.
D. Cov khoom no yuav tsum raug kaw kom zoo thaum lub sijhawm thauj mus los kom tsis txhob ya raws, muaj zog alkali thiab acid, nag thiab lwm yam impurities los ntawm kev sib xyaw.
