Fungidzira kushandisa PTFE high-temperature tepi
Mhinduro yacho haisi nyore. PTFE pachayo - 'King of Plastics' - inopinza mumakemikari kune zvingangoita zvinhu zvese. Asi tepi yePTFE inopfuura PTFE chete: ine fiberglass substrate uye yekumanikidza-inonzwa adhesive (PSA) kumashure. Izvi zvikamu zvinobata zvakasiyana zvakanyanya pasi pekunyudzwa kwenguva refu.
Aokai PTFE yakaedza akawanda tepi mamakisi mumamiriro ekunyudzwa. Ichi chinyorwa chinoputsa njodzi dzemvura, mvura yemunyu, uye makemikari mhinduro - uye inotsanangura kuti ndedzipi mhando dzekunamatira dzinorarama.
Yese Nheyo - PTFE Substrate Yakasimba, Inonamatira Haina Simba
Kune PTFE yakakwirira-tembiricha matepi pasi pekunyudzwa kwenguva refu, kuita kwese kunogona kupfupikiswa se:
PTFE base material: Yakanakisa - kemikari inert, isingatore, yakagadzikana.
Fiberglass substrate: Inotambura - inogona kupfava mumvura kwenguva yakareba.
Adhesive layer: Iyo huru isina simba poindi - inoshatisa pasi pekuratidzwa kwenguva refu kumvura, zvinonyungudutsa, kana makemikari.
Chikamu
Performance Under Kunyudzwa
Failure Mode
PTFE coating
Excellent
Hapana - inoramba inert
Fiberglass jira
Pakati nepakati
Kupfava, kupera simba mushure memavhiki/mwedzi
Silicone PSA
Zvakanaka kuvarombo
Adhesion kurasikirwa, kuzvimba, peeling
Acrylic PSA
Murombo zvikuru
Kukurumidza kushatisa mumvura/zvinonyungudutsa
Njodzi Dzakanyudzwa Mvura Yenguva Yakareba
Mvura inobata sei tepi:
Adhesive layer: Silicone pressure-sensitive adhesive inoneteswa nekugara kwenguva refu kumamorekuru emvura. Mvura inopinda mune inonamira-substrate interface, inoderedza kunamatira uye pakupedzisira ichikonzera kutadza kuzere. Simba rePeel rinogona kudonha kusvika ku40% mushure memaawa makumi mana nemasere ekunyudzwa mumvura kune mamwe magadzirirwo.
Fiberglass substrate: Mazhinji ekutengesa ePTFE epamusoro-tembiricha matepi anoshandisa fiberglass machira akaiswa nePTFE seyo substrate. Fiberglass inopfava mumvura kwenguva yakareba, zvichitungamira mukudzikira kwesimba remagetsi re tepi. Iyi inguva inononoka (mavhiki kusvika kumwedzi) asi isingadzokerike.
Kunyudzwa mumvura kunogamuchirwa rini?
Kubata kwenguva pfupi (kusuka, kuputika, kuchenesa kwenguva pfupi) - zvakanaka.
Kuramba kunyudzwa kwemazuva kana mavhiki - hazvikurudzirwe kune akajairwa silicone PSA matepi.
Kuti ushandise zvachose pasi pemvura, funga yekunamira-isina PTFE tepi ine mechanical fixation.
Aokai PTFE inopa zano vatengi kuti yakajairwa silicone PSA tepi yakakodzera maapplication ane apo neapo mvura yekubata (semuenzaniso, kugadzira chikafu washdowns) asi kwete yekuramba ichinyura kupfuura maawa makumi manomwe nemaviri. Kwenguva refu, tinokurudzira fluorosilicone adhesive kana adhesive-yemahara mamakisi.
Kunyudzwa kwemvura yemunyu - Njodzi yepamusoro
Kuenzaniswa nemvura yakachena, mvura yemunyu inokonzera kutyisidzira kukuru:
Chloride ions inomhanyisa kupinda uye kukuvadza kune inonamira layer.
Mvura yemunyu inokonzera kuora kwakanyanya kune fiberglass substrates - magirazi egirazi anogona kudonha uye kupera simba.
Munyu crystallization panguva yekuomeswa kutenderera kunogona kuvhiringa chisungo chekunamatira.
Kurudziro: Usashandise yakajairwa PTFE tepi yekunyudzwa kwenguva refu yemvura yemunyu (semuenzaniso, marine cable wraps, pasi pemvura sensors). Shandisa perfluoropolyether (PFPE) adhesive kana adhesive-isina PTFE ine mechanic clamping.
Chemical Solution Kunyudzwa - Inotsamira Zvakakwana paAdhesive
PTFE matepi anokunda mukupikisa kwemakemikari - asi izvi zvakanyanya zvinoenderana nerudzi rwekunamatira. Njodzi dziri pasi pekunyudzwa kwemakemikari dzinosiyana zvakanyanya.
Adhesive Type
Chemical Resistance
Kurudziro yekushandisa
Acrylic PSA
Murombo - asingamiri kune yakasimba acids, alkali yakasimba, kana yakawanda organic solvents
Zvakanyanya kurambidzwa chero kunyudzwa kwemakemikari
Conventional Silicone PSA (yakanyanya)
Zvine mwero - zvinodzivisa mvura, maasidhi asina simba, alkalis asina simba, uye zvimwe zvinonyungudutsa. Inokundikana pasi pekunyudzwa kwenguva refu mune yakanyudzwa yakasimba asidhi, yakasimba alkalis, uye yakanyanya polar solvents (semuenzaniso, acetone, MEK)
Inokodzera chete mwenje wemakemikari kudzivirira splash kudzivirira - kwete yekuramba ichinyudzwa
Fluorosilicone Yakashandurwa PSA
Yakanaka - yakakwirira kwazvo kune yakajairwa silicone mukupokana kwemakemikari; inotsungirira kunyudzwa kwenguva pfupi
Yakanakira kunyudzwa kwepakati-kati (mazuva kusvika mavhiki) uye zvine mwero anti-corrosion mamiriro
Perfluoropolyether / Fluorine-based Adhesive
Yakanakisa - inofanana nekupikisa kwemakemikari kwePTFE substrate; isinganyanyi kukanganiswa nemakemikari akajairika
Inofarirwa nzvimbo dzinoparadza zvakanyanya uye kunyudzwa kwenguva refu (mwedzi). Mutengo wepamusoro.
Yakachena PTFE Tepi (Haina Adhesive)
Superior - hapana zvikanganiso zvine chekuita nekunamatira; makemikari kuramba akafanana nePTFE substrate
Sarudzo yepamusoro yekunyudzwa kwemvura. Inoda kugadzirwa kwemichina (kusunga tambo, kusungirira kwebhaudhi, kusunga waya)
Property
PTFE Substrate
Adhesive Layer
Notes
Peel Simba
N/A
Inogona kudzikira kusvika 40% mushure mekunyudzwa mumvura kwemaawa makumi mana nemasere (yeUV-inorapika PSA)
Chiratidzo chikuru chekutadza kwe tepi
Tensile Simba
Hapana kurasikirwa mushure memazuva mazana maviri pa250 ° C
N/A
CF bonds inopa kugadzikana kwakatanhamara
Kuzvimba
Hapana - kunyangwe mu98% H₂SO₄ kana 40% HF
Kuzvimba muzvinonyungudutsa (toluene, acetone, MEK)
Adhesive kuzvimba kunotungamirira kumucheto kusimudza
Corrosion Resistance
> 95% simba rekusimba rinochengetwa mushure me168h mukubikira 37% HCl
Inosiyana nerudzi
Fiberglass inogona kurwiswa neHF uye mabhesi akasimba
Magetsi Insulation
Kuvimbika
Kushatisa kunogona kuderedza dielectric simba
Sarudza zvigadzirwa zvinosangana nezvinodiwa zve insulation
Kiyi yekutora: Iyo PTFE substrate yakagadzikana zvinoshamisa. Inenge njodzi dzese dzekushatisa dzinobva kune inonamira uye, kusvika padiki, iyo fiberglass substrate.
Pfupiso & Sarudzo Yekutungamira Yekunyudza Zvishandiso
Kunyudzwa Kwenzvimbo
Yakakurudzirwa Tape Type
Sei
Mvura yakachena, zvishoma
Standard silicone PSA
Inogamuchirwa kune splashes, washdowns
Mvura yakachena, inoenderera (> mazuva manomwe)
Fluorosilicone PSA kana adhesive-isina
Standard silicone icharasikirwa nekunamatira
Mvura yemunyu, chero nguva
Adhesive-isina PTFE + mechanic fixation
Munyu unorwisa zvese zvinonamira uye fiberglass
Asidhi isina simba / mabhesi (pH 4-10), inopindirana
Standard silicone PSA
Zvinogamuchirika
Asidhi yakasimba / mabhesi, organic solvents, inoenderera
Adhesive-isina PTFE (mechanical fixation) kana PFPE inonamira
Ava chete ndivo vanopona
Kunyura kwepamusoro-tembiricha (>150°C)
Silicone kana fluorosilicone PSA
Acrylic inokundikana; PTFE substrate yakanaka
Muchidimbu , PTFE tepi yepamusoro-yekushisa inogona kushandiswa mukunyudza zvikumbiro - asi chete kana iwe uchinzwisisa zvisina simba pfungwa. Iyo PTFE substrate inenge isingakundike. Iyo fiberglass ine mwero panjodzi. Iyo inonamira ndiyo yekutanga kutadza njodzi.
Kunyudzwa kwemvura yakachena pasi pemaawa makumi manomwe nemaviri, standard silicone PSA inogamuchirwa. Kwenguva refu, mvura yemunyu, kana makemikari ane hukasha, simudzira kune fluorosilicone, PFPE inonamira, kana - kupfuura zvese - inonamira-isina PTFE tepi ine mechanic fixation.
Unoda PTFE tepi yakatarwa kune chaiyo kunyudzwa nharaunda? Aokai PTFE inopa akawanda anonamira sarudzo uye inogona kupa bvunzo data yemamiriro ako. Bata nesu nepakati yako, tembiricha, uye inotarisirwa kunyudzwa kwenguva.
Izvi zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida tsanangudzo dzakadzama, nhungamiro dzekushandisa, uye zvigadziriso zvakagadziridzwa zvechigadzirwa chedu chizere, zvinosanganisira PTFE yakakwirira-temperature tepi, PTFE high-temperature matepi, PTFE mesh mabhandi, seamless fusing machine mabhandi, single-sided PTFE yakavharwa machira, high-temperature conveyor mabhandi uye yakakwirira-temperature, faibha jira tapota taura nesu:
Isu tinoomerera kune huzivi hwehunyanzvi uye kuvimbika, uye takazvipira kupa imwe-yekumira mhinduro uye masevhisi ane hanya kune vese vatengi.
