Vim muaj cov txheej txheem polymerization sib txawv ntawm ptfe, muaj cov ntaub ntawv raug tshem tawm (raug ncua kev kawm ntawv polymerization) thiab cov ntaub ntawv dispersion (dispersion polymerization), uas yog suspension ptfe, disperse ptfe, txoj kev ua ntawm ob cov ntaub ntawv kuj txawv.
Vim muaj cov txheej txheem polymerization sib txawv ntawm ptfe, muaj cov ntaub ntawv raug tshem tawm (raug ncua kev kawm ntawv polymerization) thiab cov ntaub ntawv dispersion (dispersion polymerization), uas yog suspension ptfe, disperse ptfe, txoj kev ua ntawm ob cov ntaub ntawv kuj txawv.
Cov khoom raug tshem tawm (polytetrafluoroethylene)
Nws lub ntsiab txoj kev tsim yog tuag nias txoj kev, uas yog, dawb hmoov tsis muaj ib tug me ntsis additive, ces tuag nias txoj kev, sintering saum toj no nws melting point kub, thiab ces los ntawm tsim nyog mechanical processing rau hauv cov khoom, cov khoom sawv cev rau lub phaj, bar, raj. , zaj duab xis plaub pawg.
Dispersion khoom (ptfe)
PTFE hmoov zoo npaj los ntawm dispersion polymerization txoj kev yog feem ntau hu ua "dispersion".Vim cov khoom fibrotic ntawm cov hmoov zoo no, tshwj xeeb tshaj yog nyob rau qhov kub siab tshaj 20 ℃, nws raug nquahu kom khaws, thauj thiab sib tov cov khoom ntawm 5 ~ 10 ℃. .Txoj kev tsim ntawm cov khoom siv no yog siv cov neeg sawv cev pabcuam (feem ntau yog roj av ether lossis roj av) thiab hmoov tom qab sib xyaw hauv ib puag ncig ntawm 24 ℃ lossis ntau dua li ntawm 24h (ua tiav cov theem siv lead ua hloov) thiab tom qab ntawd tsim, nrog rau piston extrusion sib sau, ziab, hlawv.Qhov kev ua haujlwm no feem ntau hu ua paste extrusion, tseem hu ua thawb.
Vim tias qhov tawg ntawm cov hmoov zoo hmoov me me, muab faib ua ntau qib ntawm cov kev qhia tshwj xeeb, cov qauv sib txawv muaj cov yam ntxwv sib txawv ntawm qhov sib txawv.Compression piv ntawm tsawg dua 100, feem ntau yog siv los tsim cov khoom siv raw thiab microporous daim kab xev; Tsawg compression piv ntawm tsawg dua 500, siv los tsim cov khoom nruab nrab thiab loj specification; 500 ~ 2000 yog nruab nrab compression piv.
Cov txheej txheem kev txheeb xyuas: qhov sib txawv tseem ceeb yog qhov loj me ntawm ob qho tib si tsis zoo ib yam. Cov khoom siv raug tshem tawm yog ntxhib, cov khoom tawg yog zoo.
Post lub sij hawm: Jun-20-2019