Kwiteyiphu yobushushu obuphezulu be-PTFE esetyenziswa kwizicelo zokukhuhlana kwe-abrasive sliding, non-stick nokumelana nobushushu akwanelanga. Iikhrayitheriya zokukhetha eziphambili: Ilahleko ye-Taber abrasion (<15 mg / 1000 imijikelezo), izaliswe i-PTFE eguquliweyo i-coating (i-carbon / graphite / MoS₂), idatha ye-PV umda, amandla e-substrate (≥200 N / cm), kunye nobunzima bokubambisana (Ra 0.2-0.4 μm). Ukukhuselwa komphetho okufanelekileyo kunye nokudibanisa okupheleleyo kubaluleke kakhulu kwixesha elide.

Iiarhente zokugqiba umphezulu ezifakwe kwilaphu le-fiberglass phambi kokutyabeka kwe-PTFE zibalulekile kwi-PTFE yokugqibela yokusebenza kwelaphu lobushushu obuphezulu. I-Organosilane coupling agents zenza iibhulorho ze-molecular phakathi kwe-fiber yeglasi ye-inorganic kunye ne-organic PTFE, ukunyusa amandla e-peel ukusuka ku-<2 N / cm ukuya kwi-4-8+ N / cm. Unyango olufanelekileyo lukwaphakamisa ukuxhathisa ukushisa (260 ° C +), ukusebenza kwe-dielectric, kunye nokuchasana kweekhemikhali. Ilaphu elingaphathwanga likhokelela kwi-delamination, ukugqabhuka, kunye nobomi obufutshane benkonzo.

Uxinzelelo lwe-Warp kunye ne-weft yelaphu le-fiberglass limisela ukusebenza kwelaphu lobushushu obuphezulu be-PTFE. Uxinaniso oluphezulu lonyusa amandla okuqina kunye nokuguda komphezulu kodwa kunciphisa amandla okukrazula (i-U-curve eguqulweyo), ukuguquguquka, kunye nokungena kokugquma. Uxinzelelo olufanelekileyo lulinganisa ukungena, ukuchasana nokukrazula, ukuguquguquka, kunye nokugqiba komphezulu. Uxinaniso oluphantsi lufanela ukugoba okuguquguqukayo; uxinaniso oluphezulu lwe-non-stick kunye ne-insulation.

I-PTFE substrate iyaxhathisa ngokwendalo isitshizi setyuwa (ukufunxwa kwamanzi <0.01%). Nangona kunjalo, ukusebenza kwe-tape jikelele kuxhomekeke kuhlobo lokunamathela: i-silicone ye-PSA imelana neendawo zaselwandle (i-500-1000h iimvavanyo zokutshiza ityuwa,> 80% ukugcinwa kwe-peel); i-acrylic PSA iyasilela. Ukunyangwa okufanelekileyo kwendawo, ukusetyenziswa kwe-bubble-free, kunye nokutywinwa komda kunye ne-silicone sealant kubaluleke kakhulu ekuthembekeni kwexesha elide kumaqonga ase-offshore kunye neenqanawa.

Ikhalenda – ukucinezela ilaphu eligqunywe nge-PTFE phakathi kweerola zesipili ezishushu kwi-360-380°C – kuguqula ngokumangalisayo ukumila komphezulu, iipropathi zokukhulula, ukungagungqi, kunye nokusebenza koomatshini. Iyanciphisa uburhabaxa ukusuka ku-Ra 0.5-1.0 μm ukuya ku-<0.05 μm, itywina i-pinholes, iphucula ukuchasana nokugqoka, kodwa iyancipha amandla okukrazula kunye nokuguquguquka. Kubalulekile ukukhulula iilitha kunye nokufakelwa kombane.

Ipatheni ye-Fiberglass weave - ecacileyo, i-twill, okanye i-satin - ichaphazela kakhulu iipropati zelaphu zobushushu obuphezulu be-PTFE. I-Satin weave inika amandla aphezulu okukrazula (2-3x plain) kunye nokuguquguquka, ilungele ukugoba okuguquguqukayo. I-Plain weave ibonelela ngokugqwesileyo kozinzo lwe-dimensional kunye nokuncamathelwa kwamaxolo, alungele usetyenziso olumileyo. I-Twill ibhalansisa zonke iipropathi zokusetyenziswa ngokubanzi.

I-PTFE i-fiberglass tape idinga iziqinisekiso ezintathu eziphambili zokhuseleko: i-UL (ukhuseleko lombane kunye nomlilo), i-FDA (ukuthotyelwa koqhagamshelwano lokutya), kunye ne-ISO 9001: 2015 (ulawulo lomgangatho). Iiteyiphu eziqinisekisiweyo zibonelela ngokusebenza okufanayo, ubomi benkonzo obude, kunye nexabiso eliphantsi lilonke lobunini nangona ixabiso eliphezulu ngaphambili. Soloko uqinisekisa iziqinisekiso ngqo namaqumrhu akhuphayo.

Iibhanti zokuthutha ze-PTFE (amabhanti eTeflon) aphucula imigca yokulungisa ukutya ngokusebenzisa iinzuzo ezine eziphambili: ukusebenza okuphezulu okungaguqukiyo (ukunciphisa inkunkuma kunye nokunamathela), ukunyamezela ubushushu obubanzi (-100 ° C ukuya kwi-260 ° C kwenza ukuba ukubhaka kube ngumkhenkce), ukucoca ngokulula kunye nokumelana nebhaktheriya (indawo engeyiyo i-porous, i-FDA ehambelanayo, i-FDA ehambelanayo, kunye nokusebenzisa amandla okusebenza ixesha elide). Ilungele izinto ezibhakiweyo, ukutya okukhenkcezisiweyo, itshokolethi, kunye neemveliso ezincangathi.

Iteyiphu yobushushu obuphezulu be-PTFE isetyenziswa kuwo wonke amanqanaba amathathu osetyenziso lwezonyango: ukhuseleko lwesixhobo sokuvala inzala (iitreyi ze-autoclave, ukupakishwa kwetywina lokushisa), unyango lomphezulu wesixhobo (i-low-friction coating, ukugqunywa kombane), kunye nezixhobo ezifakelwayo (i-vascular grafts, sutures). I-Biocompatibility iqinisekiswa nge-ISO 10993, kwaye i-FDA 21 CFR 177.1550 iseka ukhuseleko lwezinto ezisisiseko.

I-Coating uniformity ye-PTFE i-high-temperature yelaphu igqitywe yimiba emine: ukubunjwa kwe-coating (ubungakanani be-particle 0.15-0.35 μm, i-viscosity, umxholo oqinileyo), i-coating & sintering process (i-blade coating ekhethwayo ngokufana), umgangatho we-substrate (ipateni ye-weave, unyango lwangaphambili), kunye nemeko yokuvelisa (20-25% R <60% <H). Dip + blade inkqubo edityanisiweyo ibhalansi ukungena kunye nokuguda komphezulu.