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Sidee loo habboon yahay in heerkulka burburka iyo nolosha nuska ah ee wakiilada iskutallaabta ee peroxide ay la jaanqaadaan daaqadda habka daaweynta ee cajaladda Teflon?

Aragtida: 0     Qore: Tifaftiraha Goobta Waqtiga Daabacaadda: 2026-07-18 Asal ahaan: Goobta

Weydiiso

I. Xogta Muhiimka ah: Half-Life Parameters ee BPO iyo DCP

1. Tixraaca Heerkulka Nolosha Nuska

Walxaha isku xidha Peroxide waxay raacaan habka koowaad ee kinetics kala-soocidda, iyadoo nolosha nuska ah (t₁/₂) heerkulka la siiyay uu yahay tilmaame caadi ahaan la isticmaalo.

Benzoyl Peroxide (BPO): 1-daqiiqo oo nolosha badhkeed ah qiyaastii. 131°C, 1-saac nolosha badhkeed qiyaastii. 92°C, 10-saac nolosha badhkeed qiyaastii. 72°C Alaabooyinka ka soo baxa burburka waa CO₂ iyo benzoic acid, kuwaas oo si fudud u keeni kara xumbo.

Cajaladda PTFE ee ku duuban tuubooyinka kiimikaad iyo geesaha markabka.png

2. Dicumyl Peroxide (DCP):

-1-daqiiqo nus-nolosha qiyaastii. 171°C, 1-saac nolosha badhkeed qiyaastii. 135°C, 10-saac nolosha badhkeed qiyaastii. 115°C. Alaabooyinka ka soo baxa waa acetophenone iyo methane, oo leh ur xoog leh.

3. Shuruudaha Isticmaalka Xogta

Qiimaha sare waa xogta tixraaca ee walxaha saafiga ah. Xalalka dhejiska ee dhabta ah, dareerayaasha, buuxinyaasha, iyo antioxidants waxay faragalin karaan heerka burburka, markaa sixitaanka iyada oo loo marayo DSC (Calorimetry Scanning Kala duwan) ayaa loo baahan yahay.

II. Macquul ah in la waafajiyo Daaqadda Habka

1. Go'aami wakhtiga ku salaysan heerka burburka

Lakabka koollada wuxuu u baahan yahay inuu gaaro 97%-99% isku-tallaabta (qiyaastii 5-7 nolol nus ah). Sidaa darteed, wakhtiga daawaynta waa in ay ahaataa 5-7 jeer nolosha nuska heerkulka bartilmaameedka.

2. Dib-u- Xisaabi Heerkulka Laga soo bilaabo Waqtiga Joogista ee Khadka Wax-soo-saarka

Haddii wakhtiga kululaynta ee wax ku oolka ah ee foornada ay tahay 5 daqiiqo iyo 5 nolol badhkeed ayaa loo baahan yahay dhamaystirka, markaa t₁/₂ ≤ 1 daqiiqo ayaa loo baahan yahay. Heerkulka nolosha nuska 1-daqiiqo waa qiyaastii. 131°C ee BPO iyo qiyaastii. 171°C ee DCP Heerkulka daawaynta waa in lagu dejiyaa ama ka yara sarreeyaa qiimahan.

3. Dib-u- xisaabi wakhtiga heerkulka ugu badan ee la ogolaan karo

Marka hore go'aami heerkulka ugu sarreeya (Tmax) ee lakabka substrate iyo koollada ay u adkeysan karaan. Soo hel nolosha badhkeed heerkulkaas, ka dibna xisaabi wakhtiga ugu yar ee deganaanshaha adoo ku dhufanaya 5-7 jeer, si looga hortago waxyeelada kulaylka.

PTFE filimka cajalad.webp

III. Daaqadaha caadiga ah ee Daaqadaha Teflon

Substrate-ka Teflon wuxuu leeyahay iska caabin kulayl aad u fiican, laakiin koollada cadaadiska-silicone-ka ah ee lagu dhejiyay ayaa ah qodobka xaddidaya. Laba qorshe ayaa la soo jeediyay iyadoo lagu salaynayo sifooyinka isku-xidhka.

1. Qorshaha Heerkulka-hoose ee BPO

Ku habboon cajaladaha khafiifka ah ama codsiyada xasaasiga u ah yaraanta kulaylka. Daaqadda: 115-135°C, 3-10 daqiiqo.

Tusaale: Marka 125°C ee foornada, nolosha nuska BPO waa qiyaastii. 2.5 daqiiqo, markaa 5 nolosha nuska ah waxay qaataan qiyaastii 12.5 daqiiqo. Si loo dedejiyo, heerkulka waxaa kor loogu qaadi karaa 135°C (t₁/₂≈ 45 ilbiriqsi), iyadoo lagu dhamaystirayo habka 5 daqiiqo. Si kastaba ha ahaatee, waa in fiiro gaar ah loo yeesho CO₂ arrimaha xumbo-yar; Kuleylinta talaabsan ama rollers ibta dhexdhexaad ah ayaa lagula talinayaa.

2. Qorshaha Heerkulka Sare ee DCP

Ku habboon cajaladaha qaro weyn iyo alaabooyinka u baahan awood haynta heerkul sare oo heer sare ah. Daaqadda: 150-175 ° C, 5-15 daqiiqo.

Tusaale: Marka la joogo 160°C, nolosha badhkeed DCP waa qiyaastii. 1.5 daqiiqo, markaa 5 nolosha nuska ah waxay u baahan tahay 7.5 daqiiqo. Kordhinta 170°C waxay yaraynaysaa nolosha badhkeed ilaa qiyaastii. 0.8 daqiiqo, oo gaadhay in ka badan 97% burburka 5 daqiiqo, oo u dhigma khadadka wax soo saarka xawaaraha sare. PTFE cabbir ahaan way xasilloon tahay heerkulkan, taas oo ka dhigaysa daaqad warshadeed oo ku habboon.

IV. Qodobbada Muhiimka ah ee Muhiimka ah ee Isbarbardhigga

1. Isku-dhafka u dhexeeya Kuleylinta Talaabada ah iyo Tilmaamaha Burburka

Isticmaal jilbaha 'heerkulka hoose' → heerkul sare oo isdhaafsi buuxa ah.' Tusaale ahaan, DCP, marka hore u oggolow xabagta inay qulqulo oo qoyso PTFE 130 ° C, ka dibna kor u qaad heerkulka 165 ° C si aad u dhammaystirto daaweynta. Tani waxay yaraynaysaa cilladaha dusha sare waxayna xoojisaa barkinta.

2. Xogta Nolosha nuska ah waa in lagu saleeyaa qaabka dhabta ah

Kahortagayaasha ama dareerayaasha ku jira qaabka koollada ayaa bedeli kara heerka burburka. Isticmaal DSC si aad u cabbirto daawaynta qalooca exothermic, u hel wakhti aad ku gaadho heerka falcelinta ugu badan ee heerkulka habka, oo dib u xisaabiso nolosha nuska u dhigma si waafaqsan. Si indho la'aan ah ha u qaadan qiyamka caadiga ah.

Tape Heerkulka Sare ee PTFE.webp

3. Tixgelinta Taariikhda Kulaylka Substrate-ka

Filimka Teflon oo fidsan ayaa laga yaabaa inuu hoos u dhaco kulaylka oo ka sarreeya 200°C. Haddii la isticmaalayo daaqada heerkulka sare ee DCP, substrate-ka waa in horay loo sii daayay ama filim yar oo yaraaday waa in la doortaa si looga hortago duubista cajaladda ka dib daaweynta.

Marka la soo koobo: Iyada oo ku saleysan muddada kululaynta dhabta ah ee khadka wax soo saarka, dooro heerkulka heerkulka kaas oo nolosha badhku ay ku qanacsan tahay 'n × nuska nolosha ≈ wakhtiga degenaanshaha,' sidaas darteed si sax ah u dhigma sifooyinka burburka ee BPO ama DCP habka daaweynta ee cajalad Teflon.

Xogta sare waxaa bixiyay Jiangsu OK New Material Technology Co., Ltd. , soo saaraha Teflon dhar heerkul sare ah.

Haddii aad jeclaan lahayd inaad wax badan ka ogaato faahfaahinta faahfaahsan, xaaladaha codsiga, iyo ikhtiyaarka habeynta ee noocyada kala duwan ee alaabadayada - oo ay ku jiraan Teflon dhar heerkul sare leh, cajalad heerkul sare ah oo Teflon ah, suumanka mesh heerkul sarreeya ee Teflon, suumanka mashiinka dhejiska ah ee aan xidhnayn, suumanka mashiinka PTFE ee hal dhinac ah, dhar-xaraf sare leh oo heerkul sare leh. dhar-fadlan waxaad xor u tahay inaad nagala soo xiriirto:

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