Mocheso oa ho bola le halofo ea bophelo ea li-agent tse kopanyang peroxide li lokela ho ts'oaroa joang le fensetere ea ho folisa tepi ea Teflon?

Lintlha tsa I. Core: Half-Life Parameters ea BPO le DCP

1. Half-Life Temperature Reference

Peroxide crosslinking agents li latela li-kinetics tsa pele tsa ho bola, 'me halofo ea bophelo (t₁/₂) ka mocheso o fanoeng e le letšoao le sebelisoang hangata.

Benzoyl Peroxide (BPO): 1-motsotso oa halofo ea bophelo hoo e ka bang. 131°C, halofo ea bophelo ea hora e 1 ka hoo e ka bang. 92°C, halofo ea bophelo ea lihora tse 10 ka hoo e ka bang. 72°C. Ho bola ka lihlahisoa ke CO₂ le benzoic acid, e ka bakang lipudula habonolo.

2. Dicumyl Peroxide (DCP):

-1-motsotso oa halofo ea bophelo hoo e ka bang. 171°C, halofo ea bophelo ea hora e 1 ka hoo e ka bang. 135°C, halofo ea bophelo ea lihora tse 10 ka hoo e ka bang. 115°C. Lihlahisoa ke acetophenone le methane, tse nang le monko o batlang o le matla.

3. Ntho e hlokahalang bakeng sa Tšebeliso ea Boitsebiso

Lintlha tse ka holimo ke lintlha tsa litšupiso tsa lintho tse hloekileng. Litharollong tsa 'nete tsa sekhomaretsi, li-solvents, li-filler le li-antioxidants li ka kena-kenana le sekhahla sa ho bola, ka hona, ho hlokahala tekanyo ea DSC (Differential Scanning Calorimetry).

II. Logic bakeng sa ho Matching Window ea Ts'ebetso

1. Etsa qeto ea nako e thehiloeng ho tekanyo ea ho senyeha

Lera la sekhomaretsi le hloka ho fihlela 97% -99% crosslinking (hoo e ka bang 5-7 halofo ea bophelo). Ka hona, nako ea ho folisa e lokela ho ba makhetlo a 5-7 ho feta halofo ea bophelo ka mocheso o nepahetseng.

2. Back-Calculate Mocheso ho tloha Production Line Residence Time

Haeba nako ea ho futhumatsa e sebetsang ka ontong ke metsotso ea 5 le 5 halofo ea bophelo e hlokahalang bakeng sa ho phethoa, joale e hlokahalang t₁/₂ ≤ 1 motsotso. Mocheso oa metsotso e 1 oa halofo ea bophelo ke hoo e ka bang. 131°C bakeng sa BPO le hoo e ka bang. 171°C bakeng sa DCP. Mocheso oa ho folisa o lokela ho behoa ka holimo kapa hanyane ka holimo ho boleng bona.

3. Back-Calculate Nako ho tloha Maximum Allowable Mocheso

Ntlha ea pele, fumana mocheso o phahameng ka ho fetisisa (Tmax) oo substrate le lera la sekhomaretsi li ka mamellang. Fumana halofo ea bophelo ka mocheso oo, ebe u bala bonyane nako ea ho lula ka ho atisa ka makhetlo a 5-7, ho thibela tšenyo ea mocheso ho tloha ho chesa haholo.

III. Mokhoa o Tloaelehileng oa ho Phekola Windows bakeng sa Teflon Tape

Teflon substrate e na le khanyetso e ntle ea mocheso, empa sekhomaretsi sa silicone se nang le khatello ea maikutlo se sebelisitsoeng ke sona se fokotsang. Merero e 'meli e sisintsoe ho ipapisitsoe le litšobotsi tsa crosslinker.

1. BPO Low-Mocheso o potlakileng oa Scheme

E loketse litheipi tse tšesaane kapa lisebelisoa tse utloang mocheso o fokolang. Fesetere: 115-135 ° C, 3-10 metsotso.

Mohlala: Ka 125 ° C ka ontong, halofo ea bophelo ea BPO e ka bang. Metsotso e 2,5, kahoo bophelo ba halofo ea 5 bo nka metsotso e ka bang 12.5. Ho potlakisa, mocheso o ka phahamisoa ho 135 ° C (t₁/₂ ≈ metsotsoana e 45), ho qeta mokhoa ona ka metsotso ea 5. Leha ho le joalo, tlhokomelo e tlameha ho lefshoa litabeng tsa CO₂ micro-bubble; Ho khothaletsoa ho futhumatsa kapa lirolara tse mahareng tsa nip.

2. DCP High-Mocheso o tsitsitseng Scheme

E loketse litheipi tse teteaneng le lihlahisoa tse hlokang matla a phahameng a mocheso o phahameng. Fesetere: 150-175 ° C, 5-15 metsotso.

Mohlala: Ho 160 ° C, halofo ea bophelo ea DCP e ka bang. Metsotso e 1.5, kahoo bophelo ba halofo ea 5 bo hloka metsotso e 7.5. Ho nyolohela ho 170 ° C ho fokotsa halofo ea bophelo ho hoo e ka bang. Metsotso ea 0.8, ho fihlela ho senyeha ha 97% ka metsotso e 5, ho bapisa mela ea tlhahiso ea lebelo le phahameng. PTFE e tsitsitse ka mokhoa o itseng mochesong ona, e leng se etsang hore e be fensetere e loketseng ea indasteri.

IV. Lintlha tsa Bohlokoa tse Sebetsang tsa ho Bapisa

1. Synergy Pakeng Tsa Mohato oa Ho futhumatsa le ho senyeha ha Litšobotsi

Sebelisa gradient ea 'low-themperature initiation → high-temperature full crosslinking.' Ka mohlala, ka DCP, lumella pele sekhomaretsi hore se phalle 'me se kolobise PTFE ka 130 ° C, ebe u phahamisa mocheso ho 165 ° C ho qeta ho folisa. Sena se fokotsa bofokoli holim'a metsi mme se matlafatsa ts'ireletso.

2. Lintlha tsa Half-Life li tlameha ho lekanyetsoa ho ea ho Sebopeho sa Sebele

Li-inhibitors kapa li-solvents tse entsoeng ka sekhomaretsi li ka fetola sekhahla sa ho bola. Sebelisa DSC ho lekanya lekhalo la pholiso ea exothermic, fumana nako ea ho fihlela sekhahla se phahameng sa karabelo mochesong oa ts'ebetso, 'me u bale halofo e lekanang ea bophelo ka nepo. U se ke ua iphapanyetsa litekanyetso tsa boitšoaro.

3. Ho nahanoa ka Histori ea Thermal ea Substrate

Filimi ea Teflon e entsoeng ka mokhoa o otlolohileng e ka 'na ea fokotseha ka mocheso ho feta 200 ° C. Haeba o sebelisa fensetere ea mocheso oa mocheso o phahameng oa DCP, substrate e lokela ho kenngoa pele ho nako kapa filimi e tlaase ea skived e lokela ho khethoa ho thibela ho phunyeha ha theipi ka mor'a ho phekola.

Ka kakaretso: Ho itšetlehile ka nako ea ho futhumatsa ea sebele ea mohala oa tlhahiso, khetha ntlha ea mocheso eo halofo ea bophelo e khotsofatsang 'n × halofo ea bophelo ≈ nako ea bolulo,' ka tsela e nepahetseng e bapisa litšobotsi tsa ho bola tsa BPO kapa DCP ho mokhoa oa ho folisa tepi ea Teflon.

Lintlha tse ka holimo li fanoe ke Jiangsu OK New Material Technology Co., Ltd. , moetsi oa masela a Teflon a mocheso o phahameng.

Haeba u ka rata ho ithuta haholoanyane ka lintlha tse qaqileng, maemo a ts'ebeliso, le likhetho tsa ho itlhophisa bakeng sa lihlahisoa tsa rona tse felletseng - ho kenyeletsoa masela a mocheso o phahameng oa Teflon, tepi ea mocheso o phahameng oa Teflon, mabanta a mocheso o phahameng oa Teflon, mabanta a seamless a sekhomaretsi, lesela le nang le lehlakore le le leng la PTFE, lesela la mocheso o phahameng oa mocheso le fiberglass. masela — ka kopo ikutloe u lokolohile ho ikopanya le rona ka:

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