PTFE Emulsion Impregnation-a hman thin Auxiliaries hman tlanglawn tak tak – Guide kimchang

PTFE emulsion impregnation hi siam chhuahna atana hmanraw bulpui ber a ni PTFE puan lumna sang tak . Base PTFE dispersion chauh hian fiberglass fabric nen a hnim, a luhchilh, a bond tha tawk lo. Uniform coating, strong adhesion, leh defect-free surface neih theih nan thil siamtute chuan functional auxiliary hrang hrang an dah belh a ni.

Aokai PTFE hian thil tam takah impregnation formulations a ti tha hle a ni. He kaihhruaina hian auxiliary hman tlanglawn ber pariat – an thil tih te, an hnathawh dan te, engtikah nge an hman tur tih te a sawifiah a ni.

Wetting leh Penetrating Agents – A bulpui ber Additive

Raw PTFE emulsion hian surface tension a nei sang hle a, hei hian fiber leh fabric-ah a infiltration tha lo hle. Wetting agents hian surface tension a tihziaawm a, emulsion chu a darh zau thei a, a lut tha thei bawk.

Key note: Fluorocarbon surfactants hi a tha hle a, mahse uluk taka hman a ngai a ni. Excess hian sintering laiin coating surface-ah a migrate thei a, non-stick performance a ti tlem thei bawk.

Thickeners leh Rheology Modifiers – Coating Pick-Up control dan

Thickeners hian emulsion viscosity chu a dripping loh nan a siamrem a, coating thickness pawh chiang takin a regulate bawk.

Practical tip: Tight-weave fabric-a coating te tak te, uniform tak siam tur chuan low-viscosity formulations hmang la, thickener tlem ber hmang ang che. Coating rit tak tak emaw open-weave fabric tan chuan penetration depth control turin thickener tihpun tur a ni.

pH Regulator leh Emulsion Stabilizer te a awm bawk

PTFE emulsions hi a tlangpuiin anionic surfactants hmanga stabilized a ni a, coagulation ven nan pH 9–10-ah dah a ni.

• Ammonia tui (28 wt%): Regulator hman lar ber a ni. Drying/sintering laiin a volatilize vek a, performance tichhe thei residue a awm lo.

• Auxiliary stabilizers: Anionic surfactants sodium dodecyl sulfate (SDS) leh secondary alkyl sulfonate (SAS) te hian pumping leh agitation laiin emulsion shear resistance a tichak a.

Adhesion Promoters – Bonding Resins leh Coupling Agents te hi a tha hle

Pure PTFE hian substrate nena bonding force chak lo tak a nei a. Adhesion promoter te hi a pawimawh hle.

1. Silane coupling agents te chu a awm thei

• Entirnan: Aminosilane (KH-550), epoxy silane tih te hi a ni.

• Mechanism: Hydrolysis hnuah fiberglass – Silane leh glass inkara Si-O-Si bonds te nen chemical bonds an siam a, PTFE emaw polymer dang emaw nena inzawm organic functional group te an siam bawk.

• Fimkhur tur: Emulsion a chhe loh nan uluk taka dah tur a ni. Pre-hydrolysis emaw post-treatment (impregnation hmaa puan-a hnawih) hi a tha.

2. Temperature sang tak atanga lo chhuak bonding resin dispersions

• Entirnan: Tui atanga polyamide-imide (PAI), polyphenylene sulfide (PPS), polyethersulfone (PES) te hi a darh chhuak thin.

• A hman dan: Non-stick coatings atana core materials leh impregnated fiberglass filter media leh membrane materials atana common binders te. Final composite-ah hian adhesion leh cohesion an ti tha zawk.

Film siamna atana hmanraw – Sintering Temperature tihhniam

PTFE hian melt viscosity a nei sang hle. Film-forming aids hian sintering laiin particle fusion a ti awlsam hle.

• PFA (perfluoroalkoxy resin) – PTFE aiin a melting point a hniam zawk

• FEP (fluorinated ethylene propylene copolymer) – PTFE aiin a melting point a hniam zawk

Heng melt-processable fluoropolymers te hian sintering laiin PTFE particle te inkarah molten bonding phase an siam a, hei hian coating compactness leh interfacial adhesion a tichak a ni. A bik takin thick coating atan emaw, sintering temperature hniam zawk duh hunah emaw an tangkai hle.

Functional Fillers – Demand a nih chuan Custom Properties a awm thei

Fillers te chu emulsion chhungah direct in an theh darh a, chu chuan property bik a pe a ni.

Pawimawh: Fillers hian agglomeration ven nan leh uniform distribution a awm theih nan wetting dispersants (eg, polycarboxylates) dik tak a mamawh a ni.

Defoamers – Pinholes awm lohna tur

Impregnation lai hian foaming nasa tak a awm a, chu chuan coatings-ah pinhole defect a siam thin.

Thurawn: High-performance bonding emaw coating application-a hman tur PTFE tape tan chuan silicone-free defoamers hi duh zawk a ni.

Film siamtu Humectants – A chang chuan hman thin

Trace high-boiling-point solvent emaw polyols (propylene glycol, ethylene glycol) te chu a chang chuan tui a vawt slow theih nan leh cracking a vawt rang loh nan an dah tel bawk.

Pawimawh: Hengte hi sintering process-ah hman a ni tlem hle a, sintering neih laiin organic component zawng zawng hi a chhe kim vek tur a ni. A hman tam lutuk hian carbon residue a hnutchhiah thei a ni.

Thupui – Auxiliary Package dik tak thlan dan

Aokai PTFE hian hmanna bik atan custom impregnation blend a siam thei a ni. I substrate, coating thickness mamawh, leh performance target te min rawn biak theih reng e.

A chunga kan tarlan te hi Jiangsu Aokai thil thar siam chhuahna Co., Ltd.

Kan product range pumpui atana specification chipchiar tak tak, application scenario leh customized solutions chungchang hriat belh i duh chuan, PTFE high-temperature fabrics, PTFE high-temperature tapes, PTFE mesh belts, seamless bonding machine belts, single-sided PTFE cloth, high-temperature resistant conveyor belts leh high-temperature resistant fiberglass te pawh a tel fabrics, min rawn biak theih reng e:

• Pu Guo-a chuan: +86 18944819998 biak theih a ni

• Pu Liu-a chuan: +86 13705266308 biak theih a ni

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