Yas tiv thaiv film viscosity influencing yam thiab xaiv kev paub

Kev siv cov yeeb yaj kiab tiv thaiv mas feem ntau zoo rau nws cov viscosity, feem ntau, muaj peb yam tseem ceeb uas cuam tshuam cov viscosity ntawm cov yas tiv thaiv film, namely: 1, wetting; 2, lub cev muaj zog thiab diffusion; 3, nkag mus. Qhov tseeb, cov nplaum ua kom siab yuav ua tau zoo nyob ze nrog tsuas yog qhov zoo nyob rau ntawm qhov khoom ntawm qhov adhered los tsim tej yam kev kho mob rau lub cev thiab tshuaj.

Tib lub sij hawm thaum siv cov yeeb yaj kiab tiv thaiv, lub siab tawv molecules siab yuav txav mus rau saum npoo ntawm cov ntaub ntawv adhered. Thaum qhov kev ncua deb ntawm ob daim ntawv cog lus tsawg dua 5A, kev sib txuas ntawm lub cev thiab tshuaj yuav tshwm sim. Tom qab, raws li cov txheej nplaum nplaum, nws kis mus rau hauv lub recesses thiab voids nyob rau hauv ib lub siab, kom qhov sib tiv tauj cheeb tsam nruab nrab ntawm ob qhov nce, thiab ib qho kev sib txuas ntawm cov khoom sib dhos yog ces tsim ntawm lub nplaum thiab cov khoom adhered.

Thaum ua cov yeeb yaj kiab tiv thaiv, ua ntej, tus tsim substrate yuav tsum tau xaiv. Nyob rau ntawm tam sim no, thaum cov zaj duab xis substrate yog npaj, cov txheej txheem tseem ceeb siv los tshuab moulding, casting and calendering. Nyob rau hauv qhov kev kho deg txheej txheem ntawm nws cov zaj duab xis substrate, nws mas nws muaj xws li corona kho, ie, tsim polar reactive pawg tsim daim pits zoo kawg; thiab txheej kev kho mob, piv txwv li, kua nplaum ua kua nplaum nyob rau hauv substrate. Nyob rau hauv zaj duab xis, pib ua kom qhuav.

Raws li kev siv ntau yam, tsim cov khoom yas tiv thaiv cov khoom yuav tsum raug xaiv. Tom qab ntawd, hauv kev xaiv cov txheej txheem, yuav tsum tau ntsuam xyuas yam dab tsi? Txhua tus neeg yuav tsum paub tias rau ntau qhov chaw ntawm cov khoom, lawv xav tau txawv stickiness. Tsis tas li ntawd xwb, rau tej qhov chaw zoo sib xws, cov khoom sib txawv kuj yuav tsum tau sib txawv tackiness. Kev ua cov kauj ruam tom ntej yog tus yuam sij rau kev txiav txim siab. Kev rov qab soj ntsuam feem ntau yog khoov, thawb, txiav, drilling, thermoforming thiab lwm yam.

Qhov thib ob, thaum lub sij hawm xaiv cov txheej txheem, peb yuav tsum tau them sai sai rau txoj kev sib piv ntawm cov thickness thiab viscosity ntawm cov yas tiv thaiv cov khoom yeeb yam. Raws li rau lub zog tensile thiab elongation ntawm tus tiv thaiv zaj duab xis, kom paub meej tias cov yeeb yaj kiab yooj yim thiab lub zog ua tau raws li cov kev cai. Ua ntej xaiv ib hom, nws tseem yog qhov yuav tsum tau nkag siab txog cov yam ntxwv ntawm cov khoom yuav tsum tau muab pov tseg, nrog rau nws cov khoom nto, ntxiv nrog rau lwm yam ntawm cov yas tiv thaiv cov khoom yeeb yaj kiab, xws li kev siv qhov chaw, kev cia khoom thiab kev thauj mus los tej yam kev mob.

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