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Mokhoa oa ho Lekola Boleng ba Emulsion ea PTFE: Lipontšo tsa 6 tsa Core & Mekhoa

Maikutlo: 0     Mongoli: Nako ea Phatlalatso ea Mohlophisi oa Sebaka: 2026-05-27 Tšimoloho: Sebaka

Botsa

PTFE emulsion - e tsejoang hape e le PTFE dispersion - ke thepa e tala bakeng sa ho roala lesela la fiberglass ho hlahisa. PTFE lesela la mocheso o phahameng , litheipi, le mabanta. Haeba boleng ba emulsion bo koetsoe, sehlahisoa sa ho qetela se tla ba le ts'ebetso e mpe e sa sebetseng hantle, ho roala ho sa lekanang, kapa ho se sebetse pele ho nako.

Empa u tseba joang haeba batch ea PTFE emulsion e ntle? U e leka.

Aokai PTFE e sebelisitse le ho leka liemulsion tsa PTFE ka lilemo. Tataiso ena e akaretsa matšoao a tšeletseng a mantlha a tlhahlobo - litaba tse tiileng, pH, boholo ba likaroloana, viscosity, botsitso le chebahalo - ka mekhoa e tloaelehileng le litekanyetso tsa ho amoheloa.

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Litaba tse Tiileng - Letšoao la Motheo ka ho Fetisisa

Likahare tse tiileng li ama ka ho toba ts'ebetso ea sehlahisoa le moruo oa kopo (liaparo tse teteaneng li hloka lihlahisoa tse phahameng).

Mekhoa e tloaelehileng ea tlhahlobo:

Mokhoa

Tsamaiso

Molemo ka ho fetisisa Bakeng sa

Mokhoa oa Gravimetric (Oven).

Omisa sampuli ea bongata ho 120-150 ° C ho boima bo sa feleng; bala litaba tse tiileng ka phapang ea bongata

Ea khale, e sebetsang hohle, maemo a laborateng

Mokhoa oa Hydrometer

Lekanya ka khalase ea hydrometer (mofuta oa 1.400-1.600, ho nepahala ± 0.001); fetola ka mokhoa o ikhethileng oa matla a khoheli a matla a khoheli

Teko ea tlhahiso e bonolo, e potlakileng setšeng

Mokhoa o sa fetoheng oa taba

Felisa mongobo le li-surfactants mocheso o phahameng (mohlala, 380 ° C); e boetse e etsa qeto ea hore na ke eng

Ha ho hlokahala tlhahlobo ea surfactant

Mekhoa ea ho amohela:

  • Ho latela T/FSI 067-2021 e tloaelehileng: Tlhokahalo ea litaba tse tiileng bakeng sa PTFE e kentsoeng khafetsa ke 60±2%

  • Tekanyetso ea 'nete ea taolo ea sebaka sa marang-rang: 60±0.5% (mamello e matla bakeng sa ho roala ka mokhoa o tsitsitseng)

PTFE_Emulsion_Solid_Content_Test.jpg

PH Bohlokoa - Letšoao la Botsitso

boleng ba pH bo ama botsitso ba polokelo, ho bola, le ho tsamaellana le lisebelisoa tse ling.

Mokhoa oa ho etsa liteko: Mokhoa oa Glass Electrode (Qeto e tobileng) - metha ka ho sebelisa meter ea pH e nang le electrode ea khalase e lekantsoeng ka ho lekanya lintlha tse peli kapa tse tharo. Ena ke mokhoa o sebelisoang haholo o tloaelehileng.

Mekhoa ea ho amohela:

  • Ho latela T / FSI 067-2021: pH mefuta e 9.0 - 11.0

  • Ho feto-fetoha ha pH hangata ho supa ho se tsitse ha sistimi kapa karabelo ea lik'hemik'hale e etsahetse (mohlala, hydrolysis of surfactant)

  • Ho latela nako e telele liphetoho tsa pH ho bohlokoa bakeng sa ho ahlola botsitso ba lik'hemik'hale tsa emulsion

Ke hobane'ng ha pH e le ea bohlokoa: Li-emulsion tsa PTFE li tsitsisoa ke li-surfactants tse nang le fluorinated, tse hlokang maemo a alkaline (pH> 8) hore li lule li sebetsa. Haeba pH e theoha ka tlase ho 8, emulsion e ka 'na ea hoama.

Aokai PTFE e khothaletsa tlhahlobo ea pH ho moqomo o mong le o mong o kenang le khoeli le khoeli nakong ea polokelo. Ho theoha ka tšohanyetso ho tloha 10.2 ho ea ho 8.5 libeke tse peli ho bontša hore emulsion e senya 'me e lokela ho sebelisoa hang-hang kapa e haneloe.

Boholo ba Karolo le Kabo ea Boholo ba Karolo

Boholo le ho ajoa ha likaroloana tsa mantlha tsa PTFE li na le tšusumetso e matla ho thepa ea ho etsa lifilimi, ho kenella le ho sebetsa ha sehlahisoa sa ho qetela.

Mekhoa ea liteko:

Mokhoa

Molao-motheo

Tekanyo Range

Molemo ka ho fetisisa Bakeng sa

Phapang ea Laser

Laser scattering angle correlates le particle size

Submicron ho millimeter

E tloaelehileng haholo, e potlakileng, e pharaletseng

Ho hasana ha Leseli le Matla (DLS)

E sekaseka ho feto-fetoha ha matla a khanya ha nako e ntse e feta

Submicron le nanoscale

Likaroloana tsa mantlha, li hlapolla li-dispersions

Ho hlahloba microscope ea elektroniki (SEM)

Ho nahana ka ho toba - nka sebaka sa emulsifier ka tharollo ea sodium hexametaphosphate ho qoba ho kopana nakong ea ho omisa.

Qeto e phahameng

Morpholoji e qaqileng, tekanyo e nepahetseng

Matšoao a mantlha a tlhahlobo:

  • D50 (bophahamo ba bohareng) - mefuta e tloaelehileng ea emulsion ea PTFE: 0.1-0.3 microns

  • Bophara ba kabo ea boholo ba likaroloana - e moqotetsane e molemo bakeng sa ho roala ka mokhoa o tsitsitseng

  • D10 le D90 - tšoaea ho ata ha kabo

Tataiso ea ho amohela: Bakeng sa likopo tse ngata tsa ho roala, D50 e lokela ho ba pakeng tsa 0.15 le 0.25 μm le 90% ea likaroloana tse ka hare ho ± 0.1 μm ea moelelo.

PTFE_Emulsion_Particle_Size_Comparison.png

Viscosity - Tšebeliso ea ho sebetsa

Viscosity e tšoaea boits'oaro ba phallo, e amang ka kotloloho lits'ebetso tsa ho roala le ho kenella.

Mekhoa e tloaelehileng ea ho metha:

Mokhoa

Molao-motheo

Ho tshwaneleha

Viscometer e potolohang

E lekanya viscosity e matla ka ho hanyetsa rotor

E tloaelehileng haholo - e sebetsa bakeng sa maro a Newtonian le ao e seng a Newtonian

Capillary Viscometer

E lekanya nako ea ho phalla ka capillary

Mekelikeli e tlaase-viscosity

Cone-Plate Viscometer

Tlhahlobo e nepahetseng ea ts'ebetso ea ho kuta

Mekelikeli e phahameng ea viscosity, li-curve tsa rheological

Rheology e Pharalletseng

Shear stress-shear rate, thixotropy, yield stress, G' le G''

Ha litlhoko tsa ts'ebetso li hlokahala

Mekhoa ea ho amohela:

  • Ka T/FSI 067-2021: Sebaka sa Viscosity 12.0 - 30.0 mPa·s (ho 25±1°C)

  • Viscosity e tlase haholo → ho roala ho sa lekanang, ho rotha

  • Viscosity e phahameng haholo → ho se kenelle hantle ka har'a fiberglass, e hloka ho hlapolloa

Tlhokomeliso ea bohlokoa: Bakeng sa ho roala ka lesela la fiberglass, viscosity ea sepheo hangata ke 15-20 mPa·s. Haeba viscosity e hoholeha, fetola ka metsi a deionized (ho theola) kapa eketsa thickener (ho phahamisa).

Tlhahlobo ea Botsitso - Botšepehi le Botšepehi ba Lipalangoang

Tlhahlobo ea botsitso e tiisa hore emulsion e lula e tšoana nakong ea polokelo le lipalangoang. Mekhoa ea tlhahlobo e potlakileng e sebelisoa ho etsisa maemo a nako e telele.

Mokhoa oa Teko

Maemo

Seo E se Etsisang

Centrifugal Stability

1000-5000 rpm bakeng sa metsotso e 30-120; hlokomela delamination/ sedimentation

Ho tsofala ka potlako - mokhoa o tloaelehileng haholo

Thermal Stability

40-60 ° C bakeng sa lihora tse 24-72

Ho boloka mocheso o phahameng

Qhoma-Thaw Botsitso

Qhamisa ho -20 ho -10°C, qhibiliha ka 25°C; pheta lipotoloho tse 3-10

Lipalangoang tsa mariha ka literaka tse se nang mocheso

Botsitso ba polokelo

4-40 ° C bakeng sa likhoeli tse 1-12; hlahloba matšoao a bohlokoa nako le nako

Etsa qeto ea bophelo bo sebetsang ba sethala

Botsitso ba Mechini

Ho kuta ka lebelo le phahameng; phetoho ea boholo ba likaroloana tsa teko / viscosity

Ho pompa, ho kopanya, ho roala ha moriri o phahameng

Mekhoa ea ho pasa/ho hloleha:

  • Ha ho na delamination e bonahalang, sedimentation, kapa sebopeho sa gel

  • Viscosity phetoho <10% ho tloha qalong

  • Phetoho ea boholo ba karolo ea D50 <15%

Tataiso ea bophelo ba Shelf: Tlas'a polokelo e nepahetseng (10-30 ° C, e tiisitsoe), emulsion ea PTFE hangata e boloka botsitso bakeng sa likhoeli tse 6-12. Haeba tlhahlobo ea centrifuged e bontša> 5% sediment, lahla beche.

PTFE_Emulsion_Centrifugal_Stability.png

Tlhahlobo ea Ponahalo - Tlhahlobo e potlakileng ea Batch Consistency

Hlahloba ka mahlo sampuli tlas'a khanya ea tlhaho.

Ponahalo e amohelehang: Emulsion e mosehla o mosoeu kapa o bobebe, junifomo, e se nang lintho tse sa tloaelehang tse kang delamination, maqeba a gel, sebopeho sa letlalo, kapa pula e hlakileng.

Seo u ka se shebellang:

  • Ho fifala → tšilafalo e ka bang teng kapa ho senyeha ha mocheso

  • Letlalo ka holim'a metsi → ho omella kapa ho hoama ka mokhoa o itseng

  • Maqhutsu kapa makhopho → polymer e kopantsoeng (e mpe)

  • Mokelikeli o hlakileng ka holimo → sedimentation e etsahetse

Kakaretso - Khetha Mekhoa ea Teko e thehiloeng ho Kopo

Haeba u...

Tsepamisa maikutlo litekong tsena

Khafetsa

Tlhahlobo e kenang ea thepa e tala

Likahare tse tiileng, pH, viscosity, ponahalo

Sehlopha se seng le se seng

Taolo ea boleng ba tlhahiso

Lintho tse tiileng (hydrometer), viscosity (rotational), pH

Letsatsi le letsatsi kapa ka ts'ebetso

Nts'etsopele ea ts'ebetso ea ho roala

Boholo ba likaroloana, rheology, botsitso

Ho ea ka phetoho ea sebopeho

Tlhokomelo ea mofani oa thepa

Tsohle tse tšeletseng + leqhoa-thaw + polokelo ea nako e telele

Kotara kapa selemo le selemo

Ho hloleha ho hlahloba

SEM particle imaging + botsitso bo felletseng

Joalo ka ha ho hlokahala

Lintlha tse ka holimo li fanoe ke Jiangsu Aokai New Materials Technology Co., Ltd.

Haeba u ka rata ho ithuta haholoanyane ka lintlha tse qaqileng, maemo a ts'ebeliso, le litharollo tsa ho itlhophisa bakeng sa lihlahisoa tsa rona tse felletseng, ho kenyeletsoa lesela la Teflon le mocheso o phahameng oa mocheso, tepi ea mocheso o phahameng oa Teflon, mabanta a mocheso o phahameng oa mocheso oa Teflon, mabanta a mochini o kopanyang a se nang moeli, lesela le nang le lehlakore le le leng la PTFE, lesela le nang le mocheso o phahameng oa mocheso le fiberglass e sa keneleng mocheso o phahameng. lesela , ka kopo ikopanye le rona ka mekhoa e latelang:

Re lula re ts'ehetsa mohopolo oa ts'ebeletso ea profeshenale le 'nete, 'me ka pelo eohle re u fa litharollo tsa sebaka se le seng le lits'ebeletso tse hlokolosi!


Tlhahiso ea lihlahisoa

Sehlahisoa Botsa
Lintho tse Ncha tsa Jiangsu Aokai
AoKai PTFE ke setsebi PTFE Coated Fiberglass Fabric Manufacturers le barekisi ba Chaena, ba khethehileng ka ho fana ka PTFE Adhesive Tape, PTFE Lebanta la Conveyor, PTFE Mesh Belt Ho reka kapa ho rekisa lihlahisoa tsa lesela la fiberglass tse koahetsoeng ka PTFE . Bophara bo bongata, botenya, mebala e fumaneha ka mokhoa o ikhethileng.

LIEKETSENG POTLAKO

SEHLAHISO SEHLOPHA

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