PTFE High-Temperature Cloth Sintering-a PTFE Crystalline Structure inthlak danglamna

PTFE high-temperature cloth siamtu professional Jiangsu Aokai New Materials chuan PTFE high-temperature cloth sintering process chhung zawnga PTFE crystalline structure evolution chungchang a sawi chiang hle.

I. Original Crystalline Structure tihchhiat

1. Sintering hmain PTFE crystalline morphology a awm

Sintering hma hian PTFE hi fiberglass fabric-a inzawm dispersed emulsion particle angin a awm thin. Particle tin hian crystalline sang tak folded-chain lamellae a nei a, chutah chuan microcrystal te tak te, felfai taka dah a ni.

2. Sintering atan heating laiin structurel transformation

Temperature chu melting point (~327°C) aia sang a nih chuan crystal zawng zawng chu a hmin vek a ni. Folded molecular chain te chu a inhawng a, a inthen a, amorphous melt ah a inthlak thin. Particle te chu continuous molten phase-ah an inzawm khawm chuan original particle boundary te chu a bo vek a, initial granular crystalline structure chu a tichhia vek a ni.

II. Cooling laiin Recrystallization a awm

1. Spherulitic structure siam chhuah

Melten state atanga a lum chuan PTFE chu rang takin a recrystallize a, central nucleation site atanga pawn lam hawia radially oriented folded-chain lamellae atanga siam spherulites a siam thin. Heng interpenetrating spherulites te hian continuous crystalline matrix an siam a, original packed particle structure chu a thlak a ni.

2. Final crystallinity inthlak danglamna

PTFE hian rigid, highly regular molecular chain a nei a, cooling chak tak hnuaiah pawh crystallization rates chak tak tak a pe chhuak thei a ni. Final crystallinity hi a tlangpuiin 50% atanga 70% inkar a ni a, original emulsion particles aiin a hniam deuh hlek a ni.

III. Crystalline Parameter leh Crystal Form te lo inthlak danglam dan

1. Crystal phase nghet tak vawn tlat

Room temperature thlenga a lum hnuah PTFE hian hexagonal crystal system (room-temperature hexagonal phase) nghet tak a vawng reng a, chu chu a pre-sintering crystal form nen a inang reng a ni. Structural shift zawng zawng hi ultimate crystal phase aiin crystal size, perfection leh morphology-ah a thleng vek a ni.

2. Crystal perfection-a cooling rate-in nghawng a neih dan

· Slow cooling hian crystallinity sang zawk, spherulites lian zawk leh thicker, well-defined lamellae a siam a, chu chuan product hardness leh density sang zawk a siam chhuak thin.

· Rapid quenching hian crystallinity a hniam deuh a, spherulites fin zawk, perfect lo zawk a siam a, thil siam zawh tawhte flexibility leh semi-transparency a ti tha zawk bawk. Slow cooling hi PTFE high-temperature cloth atan chuan mechanical strength mamawh phuhruk nan standard a ni.

IV. Fiberglass-a Interfacial Crystallization-in nghawng a neih dan leh a pawimawh zawng zawng

1. Transcrystallization thil thleng (Transcrystallization) thil thleng

PTFE melt chu fiberglass surface-a a lum chuan fiber surface-a dense nucleation site-te chuan transcrystallization a thlen a: columnar crystal layer chu fiber axis-ah perpendicular-in a lo thang lian a, bulk coating chhunga spherulite morphology nen a danglam hle.

2. Fiber interface atanga coating bulk thlenga gradient structure

Fiberglass nghawng hnuaiah PTFE crystalline structure hian gradient transition a siam a: fibers bula transcrystalline layer chu inner coating matrix-a spherulitic structure-ah a inthlak zauh zauh a.

3. PTFE puan hnathawh danah structural transformation-in nghawng a neih dan tur thutlukna siamtu

Sintering hian granular folded-chain PTFE crystals chu a thlak danglam a: an melting leh structural breakdown an tawk a, chutah chuan an recrystallize leh a, continuous, dense spherulites (interfacial transcrystalline layers nei) ah an chang leh thin. Hei hian loose packed powder particle te chu intact continuous film ah a chantir a, hei hi coating hian heat resistance, low friction, non-stick property leh chemical corrosion resistance te bakah comprehensive performance a neih theih nan thil pawimawh tak a ni.

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

Kan product portfolio pumpui atana specification kimchang, application scenario leh customized solutions i hmuh duh chuan PTFE high-temperature cloth, PTFE high-temperature adhesive tape, PTFE high-temperature mesh belt, seamless heat press belt, single-sided PTFE fabric, high-temperature resistant conveyor belt leh heat-resistant fiberglass te pawh a tel puan, a hnuaia information hmang hian min rawn biak theih reng e:

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