Ku antswisa Matimba yo Khoma Thepi yo Namarhela ya PTFE – Ku antswisiwa ka Maendlelo yo Peta na ku Horisa

Matimba yo khoma – vuswikoti bya thepi yo namarhela ku lwisana na ntshikelelo wa shear naku tshama eka ndzhawu ya yona ehansi ka ndzhwalo lowu nga cinciki, ngopfu ngopfu eka mahiselo lawa ya tlakukeke – i yin’wana ya ti metrics ta nkoka swinene ta matirhelo eka PTFE thepi yo namarhela ya mahiselo ya le henhla . Matimba yo khoma yo biha ya endla leswaku thepi yi rhetela, masalela ya namarheta, na ku thyakisa switirhisiwa.

Nsinya wa nkoka wa ku antswisa matimba yo khoma wu na swiyenge swimbirhi: ku ndlandlamuxa matimba yo hlangana ya leyara ya namarheta na ku tiyisisa matimba ya interfacial anchoring exikarhi ka xinamarheti na substrate ya PTFE.

Aokai PTFE yi antswisile maendlelo ya ku peta na ku horisa ku fikelela matirhelo ya le henhla yo khoma. Nkongomiso lowu wu katsa swintshuxo leswi hlelekeke eka switeji leswi swimbirhi swa nkoka swa vumaki.

Ku Antswisiwa ka Maendlelo ya ku Peta – Ku aka Masungulo

Endlelo ro peta ri veka hiku kongoma xivumbeko, kufana ka vukulu, na matimba yo boha na substrate – masungulo ya matimba yo khoma ya kahle swinene.

1. Primer coating – xitshunxo xa nkoka xa ku namarhela loku nga riki kahle ka PTFE

PTFE yina matimba yale hansi swinene yale henhla (18-20 dynes/cm), leswi endlaka leswaku adhesive layer yitala kuva integral peeling ehansi ka high-temperature shear stress. Endlelo ra primer coating rifanele ku tirhisiwa loko kungase endliwa top adhesive coating.

• Ku hlawuriwa ka ti primer: Ti silane coupling agents kumbe ti special silicone primers (ti solutions leti hlanganisiweke na tackifying resin na reactive silane) ti amukeriwa ngopfu. Eka addition-cure silicone PSA, vinyl kumbe epoxy functional silane-based primers ya tsakeriwa.

• Tinhla ta nkoka ta vulawuri bya phurosese:

  • Ultra-thin primer film: Lawula ku enta ka dry film endzeni ka 0.5–2 μm – primer yotala yi endla boundary layer leyinga tsana leyi hungutaka matimba yo khoma.

  • Ku omisiwa loku ringaneleke ka le mahlweni: Evaporate solvent hiku hetiseka naku hetisisa preliminary condensation/crosslinking loko unga se peta ehenhla, ku sivela ku rhurhela ka primer solvent kuya eka adhesive yale henhla.

  • In-line surface treatment + primer coating: Endla vutshunguri bya plasma kumbe corona bya online eka substrate ya PTFE hiku hatlisa loko kungase cheriwa primer ku papalata kuhunguteka ka surface activation.

2. Vulawuri lebyi kongomeke bya ku tiya ka xinamarheti ni ku fana

Matimba yo khoma hi xitalo ya tlakuka hi ku enta ka namarheta, hambiswiritano ku peta loku tiyeke ngopfu ku nyanyisa ku rhendzeleka ka namarheta ehansi ka mahiselo yale henhla naswona hi ndlela yo tlhelela endzhaku swi tsanisa matirhelo yo khoma.

• Ku enta lokunene ka dry adhesive: Silicone PSA yi fikelela matimba yo khoma ya kahle eka vukulu byo oma bya 30–60 μm.

• Maendlelo ya high-precision coating: Amukela comma coating, slot die coating, kumbe high-precision micro gravure coating ku hlayisa longitudinal na transverse thickness tolerance endzeni ka ±2 μm . Ku enta lokunga ringaniki ku hlohletela ku hlangana ka ntshikelelo, leswi yisaka eka ku tshoveka loku sungulaka kusuka eka ndzhawu yo olova swinene hinkarhi wa ku kamberiwa ka matimba yo khoma.

3. Adhesive liquid pretreatment na sisiteme yo phamela

• Vacuum defoaming: Degas adhesive liquid ehansi ka vacuum endzhaku ko hlanganisa kumbe loko yinga se peta ku papalata expanded voids hinkarhi wa curing, leswi tirhaka tani hi tindzhawu to sungula ku pandzeka ehansi ka ndzhwalo lowu tshamaka wuri kona.

• Ku hlanganisiwa ka in-line xikan’we naku vupfa: Eka swiphemu swimbirhi swa silicone adhesive, veka static mixer kuva yi phameriwa hiku kongoma xikan’we naku lawula nkarhi wo tshama wa mati kutiyisisa kufana ka preliminary reaction xikan’we naku herisa ti local weak cohesive zones.

• Vulawuri bya ku basa: Hlomisa tinhloko ta coating hi swivala leswinga ngheniwiki hi ntshuri naswona sefa mati yo namarhela hiku tirhisa 5–10 μm filter cartridges ku sivela thyaka ra ti particulate leri hlohletelaka ku hlangana ka ntshikelelo.

Ku Antswisa Maendlelo yo Horisa – Ku Khiya eka Matirhelo

Ku horisa swi veka crosslink density yohetelela, levele ya ntshikelelo wale ndzeni, na masalela ya molecule leyintsongo – leswi lawulaka hiku kongoma matimba ya cohesive xikan’we naku lwisana na creep ya mahiselo yale henhla.

1. Ku kufumeta hi magoza na ku horisa ka tizoni to tala

Vutivi bya nkoka: Ku hisa hi magoza swi olovisa ku vumbiwa ka netiweke leyi fanaka, yo enta ya swiphemu swinharhu endzeni ka xinamarheti, leswi tisaka matirhelo ya le henhla swinene yo khoma loko ku pimanisiwa na ku baka ka xiteji xin’we xa mahiselo yale henhla. Mahiselo lawa yanga ringanelangiki ya endla leswaku kuva na crosslinking leyinga ringanelangiki xikan’we na soft cohesive layer; ku hisa ngopfu ku nga ha vanga ku dyuhala loku namarhelaka kumbe ntshikilelo lowukulu wa le ndzeni hikwalaho ka ku hunguteka ka mahiselo loku nga fambisaniki.

2. Vutshunguri bya le ndzhaku ka ku horisiwa na ku vupfa

• In-line post-curing: Veka xiphemu xa oven lexi andlariweke loko unga se winding hi mahiselo yale hansi nyana kutlula peak crosslinking temperature ku lehisa matimu ya thermal xikan’we naku hetisisa full crosslinking reaction.

• Roll maturation curing: Veka ti wound tape rolls eka oven ya mahiselo lawa yanga cinciki ( 40–60°C kuringana 24–48 wa tiawara ) kuva yi hlayisiwa hi static. Endlelo leri:

  • Ku hetisisa residual crosslinking reaction hi ku nonoka

  • Ku olovisa ntshikelelo wa le ndzeni lowu endliwaka hi ku andzisiwa ka mahiselo loku nga fambelaniki exikarhi ka substrate na adhesive

  • Swi antswisa swinene matirhelo ya nkarhi woleha ya ku rhwala ndzhwalo ehansi ka mahiselo yale henhla

• Staged tension annealing: Chela cyclic tension nyana eka rolled tape hinkarhi wa ku vupfa ku pfuneta ku humesiwa ka ntshikelelo.

3. Ku horisa xibakabaka na ku lawula mbango

• Vulawuri bya mbango wa low-humidity: Eka condensation-cure silicone adhesive, ndzhongho wo ringanela wa ambient wu nghenelela eka crosslinking, kasi kutsakama ngopfu swivanga ku hatlisa ka nhlonge yale henhla naswona swi sivela ku horisiwa loku dzikeke. Addition-cure silicone adhesive yi lava ku hambanisiwa swinene ka sulphur na ti compounds letingana nitrogen kuva ku sivela chefu ya catalyst.

4. Ku lawuriwa ka ntshikelelo wa ntshikelelo na ku hunguteka

Filimi ya PTFE yitala kuva na elongation xikan’we naku hunguteka ka mahiselo ehansi ka mahiselo yale henhla.

• Ku fambisa ka low-tension: Hlayisa tension ya substrate leyinga cinciki naswona yitsongo endzeni ka oven kuva u papalata ku horisiwa ehansi ka xiyimo xa stretched adhesive. Endzhaku ko hola, substrate shrinkage yi endla leswaku yi namarhela eka ntshikelelo wa le ndzeni wa compressive/shear lowu phikelelaka – leswi hungutaka swinene matimba yo khoma.

• Ku hisiwa ka substrate: Hisisa substrate ya PTFE kuya e henhla nyana kutlula mahiselo ya adhesive liquid loko unga se peta ku enhanca ku tsakama ka coating xikan’we naku hunguta ku hunguteka lokukulu ka thermal shock eka ndzhawu yo nghena ya oven.

Nkatsakanyo – Nxaxamelo wo kambela ku antswisa ku peta na ku horisa

Aokai PTFE yi tirhisa maendlelo lawa ya antswisiweke ya ku peta na ku horisa ku humelerisa thepi yo namarhela ya PTFE leyi nga na matimba yo khoma ya le henhla. Eka vaxavi lava lavaka matirhelo yo karhi yo khoma eka mahiselo yale henhla, hinga lulamisa ti primer formulations, adhesive thickness, na ti curing profiles ku fikelela swilaveko swa wena.

Vuxokoxoko bya xithekiniki lebyi nga laha henhla byi nyikiwa hi Jiangsu Aokai Switirhisiwa Leswintshwa Thekinoloji Co., Ltd.

Loko u lava ku kuma swihlawulekisi leswi nga na vuxokoxoko, swiyimo swa xikombelo na swintshuxo leswi endleriweke nxaxamelo wa hina hinkwawo wa swikumiwa ku katsa na lapi ra mahiselo ya le henhla ya PTFE, thepi yo namarhela ya mahiselo ya le henhla ya PTFE, bandi ra mesh ra mahiselo ya le henhla ya PTFE, bandi ro kandziyisa ku hisa leri nga na swirhabyani, lapi ra PTFE ra tlhelo rin’we, bandi ro fambisa leri nga tiyangiki eka mahiselo ya le henhla na fiberglass leyi nga tiyiseliki ku hisa lapi, hi kombela u hi tihlanganisa hi tichannel leti nga laha hansi:

• Nkulukumba Guo: +86 18944819998

• Nkulukumba Liu: +86 13705266308

Minkarhi hinkwayo hi namarhela filosofi ya vukorhokeri bya xiphurofexinali na vutshembeki, hi mbilu hinkwayo hi nyika swintshuxo swa tiindasitiri swa xiyimo xin’we na vukorhokeri bya vaxavi lebyi anakanyisisiweke eka tikhayente hinkwato!