Muaj nuj nqi ntawm Thickeners hauv PTFE Emulsion - 4 Lub luag haujlwm tseem ceeb

Views: 0 Author: Site Editor Publish Time: 2026-06-25 Keeb Kwm: Qhov chaw

Hauv kev tsim khoom ntawm PTFE high-temperature npuag , cov kauj ruam impregnation siv PTFE emulsion (aqueous dispersion). Tab sis raw PTFE emulsion ib leeg yog qhov nyuaj rau kev ua haujlwm zoo. Thickeners tau ntxiv los hloov kho nws tus cwj pwm rheological thiab ruaj khov.

Vim li cas? PTFE resin muaj qhov ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom ntom. Yog tsis muaj thickeners, lub emulsion yuav sib cais, nkag mus tob rau hauv cov ntaub, los yog tsim cov txheej tsis sib xws.

Aokai PTFE tau ua kom zoo xaiv cov thickener thoob plaws ntau hom impregnation. Kab lus no piav qhia txog plaub lub luag haujlwm tseem ceeb ntawm cov thickeners hauv PTFE emulsion.

Suspension Stabilization & Anti-Settling

PTFE resin muaj qhov ntom ntom ntom (kwv yees li 2.2 g / cm ⊃3;) thiab nyhav thiab tawv tawv hnyav hauv dej. Yog tsis muaj stabilization, cov emulsion sib cais rau hauv ib txheej sediment-nplua nuj thiab cov kua txheej ntshiab - ua rau nws siv tsis tau rau txheej txheej.

Yuav ua li cas thickeners ua hauj lwm: Thickeners drastic nce lub viscosity ntawm lub aqueous theem, tsim ib tug network qauv uas txhawb resin hais. Qhov no:

Extens lub emulsion txee lub neej - tseem siv tau rau lub hlis es tsis yog hnub
Tiv thaiv theem kev sib cais thaum lub sij hawm thauj thiab khaws cia
Tshem tawm caking - hardened sediment nyob rau hauv qab ntawm cov thawv

Aokai PTFE ceeb toom: Rau emulsions khaws cia ntau tshaj 30 hnub, peb pom zoo kom rov ua homogenization ua ntej siv, txawm tias nrog cov thickeners, raws li kev cia ntev ntev tuaj yeem ua rau qeeb qeeb.

Shear-Thinning Behavior rau kev ua haujlwm yooj yim

Thickeners endow lub emulsion nrog shear-thinning (pseudo plastic) tus cwj pwm: siab viscosity ntawm so, tsawg viscosity nyob rau hauv agitation.

Qhov xwm txheej	viscosity	Cov txiaj ntsig
Thaum so (sawv hauv lub tank)	Siab	Tiv thaiv kev daws ntawm PTFE hais
Thaum agitation / sib tov	Tsawg	Yooj yim siv, homogeneous blending
Thaum lub sij hawm txheej / impregnation	Tsawg (hauv qab shear)	Smooth leveling, tob tob rau hauv fiberglass
Tom qab txheej (static)	Rov qab sai	Tshem tawm sagging ntawm qhov chaw ntsug, tiv thaiv streaks

Tej yam tshwm sim: Thaum lub sij hawm dip txheej, lub emulsion ntws mus rau hauv lub fiberglass ntaub nyob rau hauv shear, ces thickens tam sim ntawd tom qab txheej kom muaj uniform ntub zaj duab xis thickness tsis drips.

Regulating Penetration Depth & Txheej Qhov hnyav

Thaum impregnating ntxeem tau substrates xws li fiberglass daim ntaub, kho hom thiab ntau npaum li cas ntawm thickeners tso cai rau meej tswj ntawm emulsion nkag mus rau qhov tob..

Qhov tob tob	nyhuv
tob dhau	Ntau cov resin penetrates los ntawm cov ntaub - siab resin khaws, tawv tes xav, pov tseg ntawm cov khoom
ntiav dhau	Cov resin tsis txaus ntawm cov ntaub nto - cov khoom tsis zoo uas tsis yog lo, raug fiberglass
Qhov zoo	Sib npaug - PTFE encapsulates fibers, du nto, zoo yooj

Yuav ua li cas thickeners tswj qhov no: siab dua viscosity slows nkag mus, tawm ntau resin rau saum npoo. Tsawg viscosity tso cai rau nkag mus tob rau hauv fiberglass pob. Qhov no txiav txim siab qhov kawg resin loading thiab tes xav ntawm cov khoom tiav.

Txhim kho zaj duab xis Uniformity & kom ruaj khov-dawb sintering

1. Zaj duab xis uniformity thaum ziab

Txaus viscosity los ntawm thickeners:

Supresses cracking tshwm sim los ntawm kev ya raws sai thaum lub sij hawm ziab
Tiv thaiv qhov tsis sib xws txheej thickness (ntub npoo, nyias qhov nruab nrab)
Yooj yim rau kev tsim cov tiaj tus, txuas ntxiv thawj cov yeeb yaj kiab
Txo qhov 'coffee nplhaib effect' qhov twg emulsion migrate mus rau ntug

2. Qhov tseem ceeb yuav tsum tau - residue-dawb sintering

PTFE emulsion yuav tsum tau sintering ntawm kwv yees li 380 ° C kom fuse PTFE hais mus rau hauv ib tug tas mus li zaj duab xis. Qhov no nthuav tawm ib qho kev xav tau tshwj xeeb rau cov thickeners:

Xaiv cov thickeners yuav tsum tau combust kiag li tsis muaj tshauv seem ntawm qhov kub no.

Thickener Zoo	Qhov tshwm sim tom qab Sintering
High-purity, tag nrho combustible	Ntxuav PTFE txheej, dawb huv xim, tag nrho cov hluav taws xob rwb thaiv tsev
Nrog inorganic residues	Tshauv me ntsis, daj discoloration, txo dielectric zog, txheej tsis xws luag

Aokai PTFE siv cellulose-raws li cov thickeners (xws li, methyl cellulose) uas hlawv tag nrho ntawm 380 ° C, tsis muaj tshauv. Peb pom zoo kom tsis txhob thickeners uas muaj inorganic ntsev los yog hlau oxides uas tawm residue.

Summary - Thickener Selection Criteria for PTFE Emulsion

Muaj nuj nqi	Kev xav tau
Ncua tseg stabilization	Tsim cov qauv network los txhawb cov khoom siv PTFE siab
shear-thinning	Ua kom yooj yim nqus, txheej, thiab nkag mus
Kev tswj kev nkag mus	Kho resin tuaj tos thiab ntaub tes zoo li
Zaj duab xis uniformity	Tiv thaiv kom tsis txhob tawg thiab ziab tsis sib xws
Residue-dawb sintering (tseem ceeb)	Yuav tsum hlawv tag nrho ntawm ~ 380 ° C - xoom tshauv, xoom xim hloov

Aokai PTFE xaiv cov thickeners uas sib npaug tag nrho plaub lub luag haujlwm thaum ua kom tiav kev sib tsoo thaum sintering. Rau kev cai impregnation formulations, peb tuaj yeem kho cov thickener hom thiab ntau npaum li cas kom phim koj cov txheej txheej hnyav thiab cov ntaub ntawv nkag.

Cov lus piav qhia ntawm no yog muab los ntawm Jiangsu Aokai Tshiab Khoom Siv Technology Co., Ltd.

Yog tias koj xav tau cov ncauj lus kom ntxaws, daim ntawv thov thiab cov kev daws teeb meem rau peb cov khoom lag luam tag nrho suav nrog PTFE cov ntaub ntawv kub, PTFE nplaum tapes, PTFE mesh siv, seamless fusing tshuab siv, ib sab PTFE coated daim ntaub, tshav kub-resistant conveyor siv thiab high-temperature fiberglass fabrics, thov hu rau peb ntawm cov channel:

Mr. Guo: +86 18944819998
Mr. Liu: +86 13705266308

Peb ua raws li kev pabcuam lub tswv yim ntawm kev tshaj lij thiab kev ncaj ncees, mob siab rau muab koj cov kev daws teeb meem ib zaug thiab kev xav zoo rau cov neeg siv khoom!