Ndlela yo Antswisa Matirhelo ya ku Namarhela hi ku phindha-phindha ka Tithepi ta ku Namarhela ta PTFE ta Mahiselo ya le Henhla

Thepi ya mahiselo yale henhla ya PTFE yitala kutirhisiwa eka switirhisiwa laha yifaneleke ku susiwa naku tlhela yi cheriwa minkarhi yotala – eka ti heat sealers hi nkarhi wa ku cinca, eka mibedo ya 3D printer, kumbe tani hi masking ya xinkarhana eka nhlengeletano ya electronics. Hambiswiritano, endzhaku ka swirhendzevutana swi nga ri swingani, tithepi to tala ti lahlekeriwa hi tack, ti ​​siya masalela kumbe ti tsandzeka ku boha.

Mahungu lamanene: ku tirhisiwa nakambe ku nga antswisiwa swinene hi ku ndlandlamuxiwa loku hlanganeke eka swiyenge swa mune: adhesive formulation , substrate treatment , backside coating design , na matirhelo lama faneleke & ku hlayisiwa.

Aokai PTFE yi tumbuluxile tithepi ta PTFE leti tirhisiwaka nakambe hi ku tirhisa milawu leyi. Nkongomiso lowu wu hlamusela xiyenge xin’wana na xin’wana hi vuxokoxoko.

Ku Antswisiwa ka Xivumbeko xa Namarheta – Nchumu wa Nkoka

Xinamarheti hi xoxe hi xona xi lawulaka ku tirhisiwa nakambe. Maendlelo ya mune ya ku endliwa ya antswisa matirhelo ya ku namarhela loku phindha-phindhiweke.

1. Ku antswisa matimba ya ku hlangana na ku tsindziyela ka crosslink

Amukela high-polymerization-degree silicone gum naswona u engetela tindzhawu ta crosslinking kuva u hundzula adhesive layer kuva yiva elastic solid. Leswi swi sivela ku handzuka kumbe ku hundziseriwa ka namarheta hinkarhi wa ku phindha-phindha ku rhurhumela naswona swi hunguta ku tilahleka ka leyara ya glue. Xinamarheti lexi hlanganisiweke kahle xi rhurhumela kahle ematshan’wini yo avana endzeni.

2. Fomula ya ku rhurha ka silicone ya le hansi

Tirhisa platinum-catalyzed addition curing system naswona susa kahle swilo leswinga na molecule yale hansi. Leswi swi sivela ku humesiwa ka mafurha ya silicone ya ti molecule letintsongo lawa ya thyakisaka ehenhla ka adhesive naswona swi papalata ku ya emahlweni ka viscosity attenuation. Ti adhesives ta low-migration ti hlayisa tack ya tona yosungula eka swirhendzevutani swotala.

3. Xivumbeko xa microphase xa ku namarhela loku nga vekiwaka nakambe

Engeta MQ silicone resin kutani u endla internetrating polymer network ku tumbuluxa hard segment–soft segment microphase separation :

• Swiphemu swo tiya – swinyika nhlanganiso kuva ku lwisana na ku hundziseriwa ka glue leyi saleke

• Swiphemu swo olova – swinyika tackiness

Xiphemu xa viscosity xinga vuyiseriwa endzhaku ko sula ntshuri ehenhla. Xihlawulekisi lexi xa 'repositionable' xi kahle eka switirhisiwa leswi lavaka ku lulamisiwa ko tala hi nkarhi wa nhlengeletano.

4. Xinamarheti lexi cinciweke lexi nga vuyeleriwaka hi mati hi ku hlantswiwa

Endzhaku kaloko vuandlalo bya adhesive byi pfaleriwile hi ntshuri, adhesive leyi ya silicone leyi cinciweke yinga hlantswiwa hi mati yo basa kumbe solvent yo olova, yitlhela yikuma kutlula 90% wa tack ya yona yosungula endzhaku ko omisiwa. Leswi swina nkoka swinene eka switirhisiwa swa cleanroom kumbe swa electronics laha ku thyakisa swinga papalatekiki.

Tiyisisa Matimba yo Anchoring Exikarhi ka PTFE Substrate na Adhesive Layer

PTFE yina ultra-low surface energy (18-20 dynes/cm), leswi hiku olova swivangaka ku hundziseriwa ka adhesive hiku hetiseka – adhesive layer hinkwayo yi tlakuka kusuka eka backing – handle ka vutshunguri lebyi tinyiketeleke.

1. Ku tirhisiwa ka vuandlalo bya substrate

Endla etching ya ti khemikhali hi sodium-naphthalene complex kumbe vutshunguri bya plasma eka PTFE fiberglass fabric ku nghenisa mintlawa ya polar yofana na C=O na -OH, leswi endlaka leswaku kuva na ku hlanganisiwa ka ti khemikhali kumbe ku hlanganisiwa loku tiyeke ka michini exikarhi ka adhesive na substrate. Leswi swi endla leswaku xinamarheti xinga khuluki eka backing loko xi susiwa.

2. Xifunengeto xo hlawuleka xa primer

Tirhisa reactive primer loko kungase endliwa adhesive coating kuva u aka buloho ra ti khemikhali exikarhi ka PTFE na silicone adhesive, ku herisa ku tsandzeka ka anchoring hiku hetiseka. Primer yi tirha tani hi xihlanganisi xa molecular, yi boha eka vuandlalo bya PTFE lebyi tirhisiweke na silicone PSA.

Aokai PTFE yitirhisa proprietary primer system leyi tiyisisaka zero adhesive transfer eka backing hambi endzhaku ka 10+ wa ti cycles to susa.

Ku antswisiwa ka Vutshunguri bya le ndzhaku (Release Surface).

Ndzhawu ya PTFE hi ntumbuluko yi tisa matirhelo yo humesa, hambiswiritano ku phindha-phindha ku rhendzeleka na ku pfula swa ha onha vuandlalo bya namarheta hi ku hlangana na micro-tearing.

1. Ku antswisiwa ka matirhelo ya ku humesa endzhaku ku peta

Tirhisa fluorosilicone ya crosslink-density yale henhla swinene kumbe silicone release layer eka PTFE back. Yi hlayisa matimba yo tshamiseka yo pfula ehansi ka mahiselo yale henhla xikan’we naku tshikileriwa ka nkarhi woleha, yi sivela ku koka ka fibre yale henhla xikan’we naku onhaka ka leyara yo namarhela loko yinga se tirhisiwa nakambe.

2. Xiphemu xa le ndzhaku lexi nga na xivumbeko xa embossed kumbe micro-structured

Pfuxeta ndzhawu ya xiviri yo khumbana exikarhi ka leyara yale ndzhaku na vuandlalo bya namarheta, ku hunguta matimba yo onha ya xihatla eka glue hinkarhi wa ku rhurhumela. Xiphemu lexi xa micro-textured xi hunguta mbuyelo wa 'stick-slip' lowu nga handzulaka xinamarheti.

Swiletelo swa Matirhelo na Nhlayiso

Hambi ku ri thepi leyi endliweke hi vunjhiniyara lebyinene yi ta tsandzeka ka ha ri ni nkarhi loko yi khomiwa hi ndlela yo biha. Maendlelo lama faneleke ya andlala ku tirhisiwa nakambe swinene.

1. Ku basisiwa loku tirhaka ka vuandlalo bya xinamarheti

Kuhunguteka ka viscosity swivangiwa ngopfu hiku thyakisa ntshuri wale henhla. Sula ehenhla hi vukheta eka tlhelo rin’we hi lapi leri nga riki na ntshuri leri cheriweke ematini yo basa kumbe byala lebyi nga riki na mati, kutani u omisa hi moya hi ntumbuluko kumbe hi moya wo titimela – tackiness yita vuyelela hindlela yo hlamarisa. Ku basisa nkarhi na nkarhi exikarhi ka matirhiselo i goza rin’we ro hlayisa leri tirhaka swinene.

2. Papalata ku onhaka ehansi ka swiyimo swo tika swa ntirho

• Hluvula hiku nonoka eka angle leyintsongo yo rhurhumela (ekusuhi na 180°) kuva yi hunguta makhombo ya ku tsandzeka ka cohesive.

• Unga tirhisi mahiselo yale henhla lawa ya ringanyetiweke – adhesive yita dyuhala naswona yi tiya, yi lahlekeriwa hi kutirhisiwa nakambe.

• Hlantswa vuandlalo bya adherend ka ha ri emahlweni – swivati ​​swa mafurha swi hatlisa swi thyakisa leyara ya adhesive naswona a swi nge susiwi hi ku helela.

3. Susa swiphepherhele swa moya hi nkarhi wa lamination

Ntshuri wutala ku hlengeletana etlhelo ka makumu ya bubble naswona wu hlohletela local stress concentration, leswi hatlisisaka ku dyuhala ka adhesive. Ku tirhisiwa loku faneleke loku nga riki na bubble (ku tirhisa squeegee kumbe roller) swi engetela vutomi bya thepi lebyi tirhisiwaka nakambe.

Nkatsakanyo – Swiyenge swa Mune swa ku Antswisiwa ka ku Tirhisa nakambe

Aokai PTFE yi endla tithepi ta PTFE leti antswisiweke ku namarhela hi ku phindha-phindha. Ti grade ta hina leti hlantswiwaka hi mati tinga vuyisa >90% tack endzhaku ko basisiwa, naswona sisiteme ya hina ya primer yitiyisisa zero adhesive transfer. Tihlanganisi na hina ku kuma switsundzuxo swa swikumiwa na datha ya xikambelo xa xirhendzevutani.

Tsalwa leri ra xithekiniki ri nyikiwile hi Jiangsu Aokai Thekinoloji ya Switirhisiwa Leswintshwa Co., Ltd.

Loko u lava ku dyondza swihlawulekisi leswi nga na vuxokoxoko, swiyimo swa xikombelo na swintshuxo leswi endleriweke layini ya hina leyi heleleke ya swikumiwa, ku katsa na malapi ya mahiselo ya le henhla ya PTFE, tithepi to namarhela ta mahiselo ya le henhla ya PTFE, mabandhi yo fambisa ya mesh ya PTFE, mabandhi ya muchini wo fusa lama nga na swirhabyani, lapi leri funengetiweke hi tlhelo rin’we ra PTFE, mabandhi yo fambisa lama nga hisiki na fiberglass ya mahiselo ya le henhla malapi, hi kombela u hi tihlanganisa hi ku tirhisa tichannel leti nga laha hansi:

• Nkulukumba Guo: +86 18944819998

• Nkulukumba Liu: +86 13705266308

Hi namarhela filosofi ya vukorhokeri ya vutshila na vutshembeki, hi tinyiketerile ku ku nyika swintshuxo leswi hlanganisiweke swa xiyimo xin’we na vukorhokeri bya vaxavi lebyi anakanyisisiweke!