PTFE High-Temperature Cloth-a Surface Treatment Process-in Surface Structure a tihdanglam dan

PTFE high-temperature cloth hi a non-stick, heat-resistant, leh anti-corrosion property avang hian hlu tak a ni. Mahse, chutiang bawka ultra-smooth, low-surface-energy, chemically inert surface, release application atana tha tak siamtu chuan bond, print, laminate pawh a ti thei lo tluk a ni.

Solution chu surface treatment a ni – PTFE surface microstructure leh chemical composition pahnih engineering hmanga non-bondable atanga bondable-a chantir a ni.

Aokai PTFE hian PTFE puan a pe a, surface treatment hrang hrang a awm bawk. He kaihhruaina hian hmanraw hman tlanglawn pali – chemical etching, plasma treatment, corona treatment, leh laser treatment – ​​leh a chunglam chu taksa leh chemical lama an siam danglam dan te a sawifiah a ni.

Chemical Etching (Sodium-Naphthalene Solution hmanga enkawlna) hmanga tihdam theih a ni.

He wet-treatment method hian effect rei ber a pe a, PTFE bonding atan pawh hmanna zau ber a hmu bawk.

1. Taksa insiam dan siamthat

Sodium-naphthalene complex solution hian PTFE surface chu a etch a, top-surface layer atanga fluorine atom te chu a strip off a ni. A tir lama mirror-smooth surface chu micron- to nanoscale honeycomb- emaw coral ang chi pit leh cavities chhiar sen lohin a etched a ni. He roughening hian a surface area bik chu nasa takin a tizau a, adhesives te tan mechanical-interlocking anchor point a siam bawk.

2. Chemical structure siam danglam

Hei hi inthlak danglamna bulpui ber chu a ni. Strongly reductive sodium hian PTFE carbon backbone atang hian fluorine atom a la chhuak a, unsaturated carbon chain leh free radicals a hnutchhiah a ni. Heng active sites te hian ambient air emaw solution emaw a moisture leh oxygen te nen an inrem lehzual a, polar functional groups te chu carbonyl (C=O), hydroxyl (-OH), leh carboxyl (-COOH) te an rawn luh tir a ni . Chutih lai chuan surface carbon content a sang a, treated layer chu dark-brown emaw brown-black emaw a lo ni ta a ni.

3. Result

Quasi-carbonized active layer a lo awm ta a ni. Surface energy chu untreated pure PTFE tan 20 dyn/cm hnuai lam atanga 40-50 dyn/cm aia sangah a kai chho a , hei hian tui hmanga siam adhesives nen pawh direct bonding a siam thei bawk. He structural modification hi a awm reng a ni . Mahse, treated layer hi micron engemaw zat chauh a te a, uluk taka venhim a ngai a ni.

Plasma hmanga enkawl dan

Partial emaw in-line processing atana hman tlanglawn tak, plasma treatment hi vacuum plasma leh atmospheric-pressure plasma-ah then a ni.

1. Taksa insiam dan siamthat

Energy sang tak nei particle (electron, ion, free radical) te hian PTFE chunglam chu an bombard chhunzawm zel a, sputter-etching effects an tichhuak thin. A chung lamah ultra-fine nanoscale roughened texture an siam a; boundary layer chak lo chu a hnuaia fiberglass substrate tichhe lovin lakchhuah a ni. Microscopic-ah chuan crystalline bulk-structured surface chu amorphous micro-roughened state-ah a inthlak a.

2. Chemical structure siam danglam

Process gas hian functional group hnuhnung berte a ruat a:

• Inert gas treatment (eg, argon): CF bonds a titawp a, a hnu lama polar group grafting atan surface free radicals a siam chhuak thin

• Reactive gas (oxygen, ammonia): Hydroxyl, carbonyl leh amino group te chu molecular chain ah direct in graft rawh

3. Result

Nano-roughened surface thianghlim, wettable sang tak a awm a. The bonding-enhancing effect degrades over time , chuvangin plasma enkawlna hnuah lamination tih nghal tur a ni. A ṭhatna ber chu ultra-shallow modified layer a ni a, hei hian overall material thickness leh original color a tidanglam lo hle.

Corona enkawl dan tur

High-voltage discharge technique, thin-film material-a thawk chak tak, mahse fast performance regression tuar thei.

1. Taksa insiam dan siamthat

High-voltage corona discharge hian micro-arc flash a siam chhuak thin. High-energy electron atanga nghawng chuan PTFE molecular chain a tichhia a, active site a siam a, shallow, subtle rough texture a etch bawk. Plasma treatment nena khaikhin chuan energy a hniam zawk leh reaction hun rei zawk a neih avangin corona hian pit-like surface roughening tlemte chauh a siam thin.

2. Chemical structure siam danglam

Discharge zone-ah hian Ozone leh reactive oxygen chi hrang hrang siam chhuah a ni. Oxidation hian hydroxyl group, peroxide leh carbonyl group te a rawn luh tir a, chu chuan surface energy nasa takin a tisang a ni.

3. Result

Treatment hian structural modification nghet lo tak nei surface layer te tak te chauh a nghawng a, a adhesive-boosting effect chu a bo nghal vat thin. A bul berah chuan hun eng emaw chen atana in-line adhesion-promoting process atan hman a ni. PTFE high-temperature cloth ang chi thil thick zawk, filled zawk tan chuan corona treatment hian plasma treatment leh chemical etching nena khaikhin chuan result tha lo zawk a pe tlangpui.

Laser hmanga enkawl a ni

Excimer-laser emaw femtosecond-laser technology hmanga lei chunglam dik tak siam danglam.

1. Taksa insiam dan siamthat

Photothermal leh photochemical effects hian micron-scale array pattern pangngai, periodic ripples, grooves, micro-pillars ang chi te chu chiang takin a siam chhuak thin. Heng artificially engineered texture te hi dik takin custom-tuned theih a ni a, adhesives nena mechanical interlocking atan geometries tha ber ber siam theih a ni.

2. Chemical structure siam danglam

Energy sang tak nei laser photon te hian chakna sang tak nei CF bonds an tichhia a, local defluorination leh carbonization a tichhuak a ni. Treated area-ah chuan diamond ang chi carbon emaw graphitic carbon layer emaw, oxygen tamna hmun a lo piang chhuak thin. Ultraviolet excimer laser hian carbonization tel lovin direct photochemical reaction hmangin active monomers a graft thei a ni.

3. Result

Physical texture leh chemical polarity te chu synchronous, targeted, leh patterned modification a awm thei a ni. Inert polymer surface chu carbon-oxygen-rich layer-ah a inthlak a, controllable roughness leh surface energy sang tak a nei a, high-strength leh long-lasting bonding performance a pe chhuak a ni.

Thupui – Taksa leh Chemical lama inthlak danglamna

Enkawl dan palite hian inthlak danglamna bulpui pahnih an nei vek a:

1. Taksa lama inthlak danglamna

Molecular-level smooth inert surface chu micro-nano-scale cavities, grooves, leh coral-style protrusions-a khuh roughened topography-ah a chantir a, adhesive bonding atan mechanical-interlocking anchor point tam tak a pe a ni.

2. Chemical inthlak danglamna

Perfluorocarbon chain (-CF2-CF2-) atanga siam energy hniam surface chu oxygen leh nitrogen awmna polar functional group tamna energy sang takah a chantir a ni. Modified surface chu regular glue hmangin wetted theih a ni a, hydrogen bonds emaw adhesive molecule nen chemical bonds pawh siam theih a ni.

Aokai PTFE hian PTFE puan chemical etching (permanent, dark surface) leh plasma treatment (thianghlim, rawng humhalh, activation window tawi) te chu standard option atan a pe a ni. Laser treatment hi specialized application hrang hrang, precision pattern mamawhna atan hman theih a ni. I bonding mamawh chungchang sawipui turin min rawn biak theih reng e.

A chunga kan sawi tak technical content hi a pe a ni Jiangsu Aokai thil thar siam chhuahna Co., Ltd.

Kan full-range product hrang hrangte tana specification, application scenario leh customized solutions chipchiar zawk zir i tum a nih 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 te pawh a tel fiberglass puan, a hnuaia information hmang hian 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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