Ilaphu le-PTFE elinobushushu obuphezulu (i-PTFE-coated fiberglass) ilungile kuphela njengemathiriyeli ekrwada esetyenzisiweyo ukulenza. Amacandelo amabini abalulekile: i- PTFE resin / emulsion (i-coating) kunye ne- fiberglass substrate (i-reinforcement). Ukungcola kuyo nayiphi na - i-ion zetsimbi, iipolima ezinobunzima obuphantsi, ii-agent ezishiyekileyo, okanye ii-alkali oxides - zinokubangela ukusilela kwangaphambi kwexesha: ukutyheli, ukuqhekeka, ukulahleka kokungabambeki, ukubola, okanye ukwaphuka kwe-insulation.
I-Aokai PTFE isebenzisa izinto eziluhlaza ezicocekileyo kunye nolawulo olungqongqo lwenkqubo. Esi sikhokelo sichaza indlela ubunyulu obuchaphazela ngayo ubungakanani bomsebenzi ngamnye kwaye kutheni kubalulekile kwizicelo ezibango.
I-PTFE Ucoceko lweMathiriyeli ekrwada-Bubuphi ubumdaka obukhoyo?
Ukungcola okuqhelekileyo kwi-PTFE kubandakanya:
Iimonomers ezingaphendulwanga kunye neepolima ezinobunzima obuphantsi bemolekyuli
Abaqalisi abashiyekileyo kunye nabasasaza (umz., PFOA)
I-ion zesinyithi (intsimbi, ubhedu, isodiyam)
Ukuncedisa ekuqhubeni kunye neemveliso
Ukucoceka okuphezulu kwenza ukuba izinto eziphathekayo zikwazi ukuhambisa ukusebenza ngokusondeleyo kwiinkcukacha ezifanelekileyo.
1. Ukumelana nokushisa kunye nokuzinza kwe-thermal
Iiyoni zesinyithi (intsimbi, ubhedu, isodiyam) zisebenza njengezixhobo ezinamandla zokuthotywa kwe-PTFE thermal . Ngaphantsi kwenkonzo yexesha elide ngaphezu kwe-260 ° C, nokuba ukulandelela ukungcola kwesinyithi kukhawulezisa ukuphuka kwe-molecular chain chain, okubangela ukuxhamla kwangaphambili kunye nokuqhekeka. Ubunyulu obuphezulu be-PTFE bubonisa ubushushu obuphezulu bokubola, buhlala bumhlophe qwa, kwaye buxhathisa ukutyheli ngokufanelekileyo.
Iipolymers ezinobunzima obuphantsi kunye ne-oily by-products zifudukela kwindawo yokugquma ngexesha lobushushu obuphezulu be-sintering, zenza i-precipitates.
Ipropathi eyonakeleyo engeyiyo intonga: Umphezulu uba tacky kwaye uthande ukunamathela kwizinto ezicutshungulwayo (ukutya, iiteyiphu ezincamathelayo).
Umngcipheko wokungcoliseka: Kwibakala lokutya kunye nezicelo zonyango, imvula efudukayo inokungcolisa iimveliso kwaye ingaphumeleli imigangatho yococeko. Ucoceko luphawu olungundoqo lwe-PTFE yoqhagamshelwano lokutya.
Iiyoni zokungcola (i-cations zetsimbi, i-halogen ions) zisebenza njengabathwali bentlawulo, ukunciphisa kakhulu ukuxhathisa umthamo kunye nokuphazamiseka kombane. Ukusetyenziswa kwe-high-insulation applications (umzekelo, i-gaskets yokugquma umbane), ukucoceka kwempahla ekrwada kubaluleke kakhulu. Iipores ezibangelwa bubumdaka zinokukhokelela ekukhupheni inxalenye.
4. Ukumelana nemichiza kunye nokuqina
Ubumdaka obunyibilikayo buphuma xa buvezwe kumajelo eendaba ekhemikhali, bushiya imingxuma emincinci ngaphakathi kwengubo. Ezi ziphene zivumela irhasi eyonakalisayo kunye nolwelo ukuba ingene kwaye ikhukulise i-fiberglass substrate, ijongela phantsi ukusebenza komqobo welaphu.
I-Fiberglass Substrate Purity - Imiba ye-Alkali Content
I-Fiberglass ayikho i-silicon dioxide ecocekileyo. Ukubunjwa kwayo kweekhemikhali kuchaza ukumelana nobushushu, amandla omatshini, kunye nokudibanisa ne-PTFE.
1. Umxholo we-alkali yensimbi ye-oxide - eyona nto ibalulekileyo
Uhlobo lweFiberglass |
Na₂O + K₂O Umxholo |
Iimpawu |
Iglasi ye-E (i-alkali-free) |
<0.8% |
Ukucoceka okuphezulu, ukugquma kombane okugqwesileyo, ukulahleka kwamandla kancinane kumaqondo obushushu aphezulu - umgangatho welaphu le-PTFE |
Iglasi ye-alkali ephakathi |
~12% |
Iindleko eziphantsi, ukunganyangeki kobushushu, amandla ahla ngokukhawuleza kumaqondo aphezulu |
Iglasi ephezulu yealkali |
>15% |
Ukunciphisa ngokukhawuleza phantsi kobushushu; I-alkali ion yenza ukubola kwe-PTFE |
Kubushushu obuphezulu, ii-ion zesinyithi zealkali ezisuka kwiglasi ecocekileyo azigcini nje ukwenza buthathaka ilaphu ngokwalo kodwa ziphinde zibangele ukuthotywa kwe-PTFE yokwambathisa , ukukhawulezisa ukusilela. Ukongeza, iglasi ephakathi / ephezulu yealkali ifunxa ukufuma, ibangela ukuxhathisa kwe-insulation yehle kakhulu.
2. Ii-agent zesayizi-okunye ukungcola
Ii-agent zokulinganisa (isitashi, i-PVA, i-oyile) zisetyenziswa ngexesha lokuluka i-fiberglass ukukhusela imicu. Ukuba ayisuswanga ngokupheleleyo phambi kokwalekwa kwe-PTFE, intsalela ye-organics carbonize, ibole, kwaye igasify ngexesha le-sintering phantse kuma-400°C.
Iziphene eziphezu komhlaba: Umbala otyheli, amabala amnyama, amadyungudyungu – iimveliso ziyasilela ekuhlolweni kwenkangeleko.
Ukudityaniswa okubuthathaka kobuso: Iintsalela zekhabhoni zivimba imichiza kunye ne-anchoring ebonakalayo phakathi kwe-PTFE kunye ne-fiberglass, ebangela i-delamination, i-blistering, kunye nokuxobuka ngexesha lenkonzo.
3. Ukumelana nokudinwa kwe-Flexural
Amaqamza omoya amancinci kunye nobumdaka obuyikristale ngaphakathi kweefilaments zefiberglass zinciphisa ukomelela kwefiber nganye. Ngaphantsi kokugoba okuphindaphindiweyo, ezi ziphene ziba ngamanqaku oxinzelelo, okubangela ukuphuka kwefayibha kwangoko kwaye kunciphise kakhulu ukuguquguquka kunye nobomi obuguquguqukayo.
Ukucoceka kwempahla ekrwada kubeka umsebenzi osisiseko we-PTFE amalaphu obushushu obuphezulu:
Ucoceko oluphezulu lwe-PTFE lumisela: ubushushu benkonzo ephezulu (260°C+), uzinzo lwexesha elide olungagungqiyo, ukugqunywa kombane okuthembekileyo, kunye nokuthotyelwa koqhagamshelwano lokutya.
Ucoceko oluphezulu lwe-alkali-free fiberglass (i-E-glass, i-Na₂O <0.8%) kunye neziqinisekiso ezicokisekileyo zokususa ubungakanani: amandla e-substrate kumaqondo obushushu aphezulu, ukuzinza kwe-dimensional, kunye ne-coat adhesion ezinzileyo ngaphandle kwe-delamination.
Ukungahlambuluki okwaneleyo kuyo nayiphi na ikhonkco kuya kubangela ukungaphumeleli kwangaphambili - i-yellowing, i-delamination, i-insulation breakdown, kunye nokulahlekelwa kwe-non-stick-ngakumbi phantsi kweemeko ezinzima: ukushisa kwexesha elide, umbane ophezulu, okanye iimfuno ezingqongqo zococeko.
Imithombo ye -Aokai PTFE kuphela i-emulsion ye-PTFE ephezulu-yobunyulu (i-ion yentsimbi ephantsi, i-oligomer ephantsi) kunye ne-E-glass fiberglass ilaphu (i-alkali-free, icociswe ngokupheleleyo ubushushu). Sinikezela ngezatifikethi zezinto eziphathekayo kwaye sinokuxhasa ibakala lokutya kunye nezicelo eziphezulu ze-insulation. Qhagamshelana nathi ngeenkcukacha ezithe vetshe.
Lo mxholo ungentla unikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.
Ukuba ufuna ukufunda ngakumbi malunga neenkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezilungiselelwe uluhlu lwethu olupheleleyo lwemveliso, kubandakanywa amalaphu e-PTFE anobushushu obuphezulu, iiteyiphu ze-PTFE ezinobushushu obuphezulu, iibhanti ze-mesh ze-PTFE, amabhanti omatshini wokubopha angenamthungo, ilaphu le-PTFE elinamacala elinye, amalaphu anobushushu obuphezulu obunganyangekiyo, kunye ne-fiberglass enganyangekiyo.
Sihlala sixhasa ifilosofi yobungcali kunye nokuthembeka, kwaye sizimisele ukukunika isisombululo esisodwa kunye neenkonzo ezicingayo.
