Paub meej: PA612 yog cov khoom siv polymer, lub npe tag nrho yog polyamide 612, tseem hu ua nylon 612. nws yog semi-crystalline engineering plastics, nrog rau lub cev zoo heev thiab tshuaj lom neeg ruaj khov.Hauv kev lag luam engineering, PA612 tau siv dav hauv kev tsim khoom thiab cov khoom siv hauv tsheb, hluav taws xob, tshuab thiab lwm yam.

PA612 yog cov khoom siv polymer, lub npe tag nrho yog polyamide 612, tseem hu ua nylon 612. nws yog semi-crystalline engineering plastics, nrog rau cov khoom zoo ntawm lub cev thiab tshuaj lom neeg ruaj khov.
Nws yog semi-crystalline engineering yas nrog zoo heev lub cev thiab tshuaj stability.Hauv kev lag luam engineering, PA612 tau siv dav hauv kev tsim khoom thiab cov khoom siv hauv tsheb, hluav taws xob, tshuab thiab lwm yam.

Cov qauv molecular ntawm PA612 yog tsim los ntawm styrene monomer los ntawm cov dawb radical polymerization.Thaum lub sij hawm txheej txheem polymerization, styrene monomer thawj zaug tau txais cov dawb radical ntxiv cov tshuaj tiv thaiv los tsim cov styrene radicals, thiab tom qab ntawd cov radicals txuas ntxiv mus rau qhov kev loj hlob cov tshuaj tiv thaiv mus rau qhov kawg ntawm cov saw hlau.Cov qauv molecular no muab PA612 zoo heev txhua yam khoom thiab hnav tsis kam.

Lub melting point ntawm PA612 yog qhov kub thiab txias ntawm cov khoom hloov ntawm cov khoom mus rau cov kua.Rau PA612, lub melting point yog feem ntau ntawm 295-315 degrees Celsius.Lub melting point nyob rau hauv no ntau yam ua rau PA612 ib tug engineering yas nrog siab ua kub yuav tsum tau.Nyob rau hauv kev siv tswv yim, lub melting point ntau ntawm PA612 yuav tsum tau txiav txim raws li tej yam kev mob thiab cov khoom siv.

Lub melting point ntawm PA612 cuam tshuam los ntawm ntau yam, nrog rau qhov hnyav molecular ntawm cov khoom, qib ntawm crystallinity, grain loj thiab lwm yam.Feem ntau hais lus, qhov siab dua qhov hnyav molecular, qhov siab dua qhov melting point;qhov siab dua qhov crystallinity, qhov qis melting point;qhov me me ntawm cov nplej, qhov siab dua qhov melting point.Yog li ntawd, cov ntsiab lus melting ntawm PA612 tuaj yeem tswj tau los ntawm kev kho nws qhov hnyav molecular, crystallinity thiab grain loj thiab lwm yam tsis.

Hauv kev siv tswv yim, qhov sib txawv ntawm cov ntsiab lus ntawm PA612 yog qhov tseem ceeb heev.Ua ntej, nws txiav txim siab ua qhov kub thiab txias ntawm PA612.Yog hais tias lub melting point tsawg dhau lawm, nws yuav ua rau melting los yog decomposition ntawm cov khoom thaum ua;Yog hais tias lub melting point yog siab dhau lawm, nws yuav cuam tshuam rau kev ua hauj lwm efficiency thiab khoom siv lub neej.Qhov thib ob, lub melting point range kuj cuam tshuam rau qhov tsim nyog ntawm PA612 nyob rau hauv ntau yam kev thov scenarios.Piv txwv li, qhov chaw siv nyob rau hauv high-temperature ib puag ncig yuav tsum muaj ib tug siab melting point los xyuas kom meej lawv stability thiab kev cia siab rau ntawm high kub.

Ntxiv rau nws cov ntsiab lus melting ntau, PA612 muaj lwm yam tseem ceeb ntawm lub cev thiab tshuaj lom neeg.Piv txwv li, nws yog tus cwj pwm los ntawm lub zog siab, siab tawv, zoo abrasion thiab corrosion kuj.Tsis tas li ntawd, PA612 muaj cov txheej txheem zoo thiab cov yas, thiab tuaj yeem ua tiav thiab tsim nyob rau hauv ntau txoj kev, xws li los ntawm kev txhaj tshuaj molding thiab extrusion molding.

Hauv kev xaus, PA612 yog cov khoom siv polymer nrog kev ua haujlwm zoo, thiab nws cov ntsiab lus melting ntawm 295-315 degrees Celsius.Kev tswj hwm ntawm qhov no yog qhov tseem ceeb los xyuas kom meej qhov kev ua tau zoo thiab kev siv ntawm PA612.Kev tswj tau zoo ntawm cov ntsiab lus melting ntawm PA612 tuaj yeem ua tiav los ntawm kev xaiv thiab kho qhov tsis zoo xws li qhov hnyav molecular, crystallinity thiab grain loj ntawm PA612, thiaj li ua tau raws li qhov xav tau ntawm cov ntawv thov sib txawv.