{"id":4976,"date":"2022-01-13T06:41:14","date_gmt":"2022-01-13T06:41:14","guid":{"rendered":"https:\/\/longchangchemical.com\/?p=4976"},"modified":"2024-12-11T15:28:50","modified_gmt":"2024-12-11T15:28:50","slug":"why-use-a-composite-photoinitiator-in-light-curing-formulating","status":"publish","type":"post","link":"https:\/\/longchangchemical.com\/hu\/why-use-a-composite-photoinitiator-in-light-curing-formulating\/","title":{"rendered":"Mi\u00e9rt haszn\u00e1ljon kompozit fotoinici\u00e1tort a f\u00e9nykem\u00e9ny\u00edt\u0151 formul\u00e1z\u00e1sban?"},"content":{"rendered":"

Mi\u00e9rt haszn\u00e1ljon kompozit fotoinici\u00e1tort a f\u00e9nykem\u00e9ny\u00edt\u0151 formul\u00e1z\u00e1sban?<\/strong><\/h1>\r\n

A fotoinici\u00e1torok a f\u00e9nyre kem\u00e9nyed\u0151 k\u00e9sz\u00edtm\u00e9nyek nagyon fontos \u00f6sszetev\u0151i, \u00e9s a szabad gy\u00f6k\u00f6k forr\u00e1sai. A fotoinici\u00e1torok t\u00falzott haszn\u00e1lata azonban sz\u00e1mos probl\u00e9m\u00e1val j\u00e1r, mint p\u00e9ld\u00e1ul t\u00f6bb v\u00e1ndorl\u00f3 anyag, cs\u00f6kkent id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1g, a bevon\u00f3film el\u00e9gtelen kikem\u00e9nyed\u0151 vastags\u00e1ga \u00e9s megn\u00f6vekedett k\u00f6lts\u00e9gek.<\/p>\r\n\r\n\r\n\r\n

K\u00eds\u00e9rletek sor\u00e1n meg\u00e1llap\u00edtott\u00e1k, hogy a kompozit fotoinici\u00e1torok haszn\u00e1lata a f\u00e9nykem\u00e9ny\u00edt\u0151 k\u00e9sz\u00edtm\u00e9nyekben hat\u00e9konyan k\u00e9pes lek\u00fczdeni a fenti probl\u00e9m\u00e1kat, \u00e9s ez\u00e1ltal sz\u00e1mos el\u0151nnyel j\u00e1r. K\u00fcl\u00f6n\u00f6sen fontos, hogy jobb kem\u00e9nyed\u00e9si eredm\u00e9nyek \u00e9rhet\u0151k el.<\/p>\r\n\r\n\r\n\r\n

A k\u00eds\u00e9rletekben n\u00e9gy \u00e1ltal\u00e1nosan haszn\u00e1lt fotoinici\u00e1tort haszn\u00e1ltunk: 184, 1173, TPO \u00e9s 819. K\u00e9miailag k\u00e9t vegy\u00fcletcsoportba tartoznak: \u03b1-hidroxi-ketonok \u00e9s acil-foszfin-oxidok.<\/p>\r\n\r\n\r\n\r\n

\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Angol n\u00e9v<\/td>\r\nTerm\u00e9k neve<\/td>\r\nCAS-sz\u00e1m<\/td>\r\n<\/tr>\r\n
HCPK<\/td>\r\nfotoinici\u00e1tor 184<\/td>\r\n947-19-3<\/td>\r\n<\/tr>\r\n
HMPP<\/td>\r\nfotoinici\u00e1tor 1173<\/span><\/strong><\/td>\r\n7473-98-5<\/td>\r\n<\/tr>\r\n
TPO<\/td>\r\nfotoinici\u00e1tor TPO<\/strong><\/span><\/td>\r\n75980-60-8<\/td>\r\n<\/tr>\r\n
BAPO<\/td>\r\nfotoinici\u00e1tor 819<\/span><\/strong><\/td>\r\n162881-26-7<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/figure>\r\n\r\n\r\n\r\n
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1. k\u00e9p<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A k\u00eds\u00e9rletben haszn\u00e1lt gy\u00f3gy\u00edt\u00f3 berendez\u00e9s egy 100 wattos Oriel higanyl\u00e1mpa (az emisszi\u00f3s spektrum a 2. k\u00e9pen l\u00e1that\u00f3), a filmvastags\u00e1got pedig 50 \u03bcm-re szab\u00e1lyozt\u00e1k.<\/p>\r\n\r\n\r\n\r\n

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2. k\u00e9p Az Oriel 100W-os higanyl\u00e1mpa kibocs\u00e1t\u00e1si spektruma<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A kem\u00e9nyed\u00e9s m\u00e9rt\u00e9k\u00e9t Fourier-transzform\u00e1ci\u00f3s infrav\u00f6r\u00f6s spektroszk\u00f3pi\u00e1val (FTIR) mutatt\u00e1k ki, hogy nyomon k\u00f6vess\u00e9k az akril\u00e1t tel\u00edtetlen kett\u0151s k\u00f6t\u00e9s jellegzetes abszorpci\u00f3s cs\u00facs\u00e1nak v\u00e1ltoz\u00e1s\u00e1t 810 cm-1 -n\u00e9l. A 750-780cm-1 s\u00e1vot referenciacs\u00facsk\u00e9nt is haszn\u00e1ltuk, mivel az nem v\u00e1ltozik a teljes fotovulkaniz\u00e1l\u00e1si folyamat sor\u00e1n.<\/p>\r\n\r\n\r\n\r\n

 <\/p>\r\n\r\n\r\n\r\n

A kett\u0151s k\u00f6t\u00e9s \u00e1talakul\u00e1si ar\u00e1ny\u00e1nak (Reag\u00e1lt akril\u00e1t tel\u00edtetlens\u00e9g, RAU) kisz\u00e1m\u00edt\u00e1s\u00e1ra szolg\u00e1l\u00f3 k\u00e9plet a k\u00f6vetkez\u0151:<\/p>\r\n\r\n\r\n\r\n

\"\"<\/figure>\r\n\r\n\r\n\r\n

Hol RL<\/sub><\/em> az akril\u00e1t kett\u0151s k\u00f6t\u00e9s abszorpci\u00f3s cs\u00facs\u00e1nak \u00e9s a referenciacs\u00facsnak az ar\u00e1nya foly\u00e9kony \u00e1llapotban; \u00e9s RC<\/sub><\/em> az akril\u00e1t kett\u0151s k\u00f6t\u00e9s abszorpci\u00f3s cs\u00facs\u00e1nak \u00e9s a referenciacs\u00facsnak az ar\u00e1nya az UV-kem\u00e9nyed\u00e9s ut\u00e1n.<\/p>\r\n\r\n\r\n\r\n

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3. \u00e1bra HCPK ( 184-es fotoinici\u00e1tor) abszorpci\u00f3s spektruma<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n
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4. \u00e1bra HMPP ( 1173-as fotoinici\u00e1tor) abszorpci\u00f3s spektruma<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n
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5. \u00e1bra A TPO abszorpci\u00f3s spektruma<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n
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6. \u00e1bra A BAPO ( 819-es fotoinici\u00e1tor) abszorpci\u00f3s spektruma<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A HCPK (184-es fotoinici\u00e1tor) f\u0151 abszorpci\u00f3ja a 240-250 nm-es hull\u00e1mhossztartom\u00e1nyban van, az abszorpci\u00f3s cs\u00facs pedig a 320-335 nm-es tartom\u00e1nyban. Egy m\u00e1sik hidroxiketon fotoinici\u00e1tor, a HMPP (Darocur 1173) hasonl\u00f3 abszorpci\u00f3val rendelkezik a 320-335 nm-es tartom\u00e1nyban, a cs\u00facs pedig 265-280 nm-n\u00e9l van. M\u00e1r e k\u00e9t fotoinici\u00e1tor kombin\u00e1ci\u00f3j\u00e1nak haszn\u00e1lat\u00e1val is elkezdhet\u0151 az UV-l\u00e1mpa teljes\u00edtm\u00e9ny\u00e9nek jobb kihaszn\u00e1l\u00e1sa (2. \u00e1bra).<\/p>\r\n\r\n\r\n\r\n

A TPO \u00e9s a BAPO (819-es fotoinici\u00e1tor) spektrumai jelent\u0151sen elt\u00e9rnek az el\u0151z\u0151 kett\u0151t\u0151l, a TPO fotoinici\u00e1tor er\u0151s abszorpci\u00f3val rendelkezik a 360-395 nm-es tartom\u00e1nyban, a BAPO pedig a 360-410 nm-es tartom\u00e1nyban. Az ut\u00f3bbi k\u00e9t fotoinici\u00e1tor hozz\u00e1ad\u00e1s\u00e1val jobban ki lehet haszn\u00e1lni a higanyl\u00e1mpa m\u00e1sik k\u00e9t f\u0151 hull\u00e1mhosszs\u00e1vj\u00e1t 370 \u00e9s 408 nm-en.<\/p>\r\n\r\n\r\n\r\n

Az els\u0151 k\u00eds\u00e9rletben a 184 \u00e9s a kompozit fotoinici\u00e1tor azonos mennyis\u00e9g\u00e9t (s\u00falyar\u00e1ny) haszn\u00e1lt\u00e1k az \u00f6sszehasonl\u00edt\u00e1shoz. Az azonos 4,5mJ\/cm2 energi\u00e1j\u00fa UV-f\u00e9ny besug\u00e1rz\u00e1sa mellett a 184-et haszn\u00e1l\u00f3 formula kett\u0151sk\u00f6t\u00e9s-\u00e1talak\u00edt\u00e1si ar\u00e1nya 24,8%, m\u00edg a kompozit fotoinici\u00e1tor formula eset\u00e9ben 79,6%.<\/p>\r\n\r\n\r\n\r\n

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A 4% HCPK (184-es fotoinici\u00e1tor) \u00e9s a kompozit fotoinici\u00e1tor \u00f6sszehasonl\u00edt\u00e1sa<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A m\u00e1sodik k\u00eds\u00e9rlet a 184 \u00e9s a kompozit fotoinici\u00e1tor 6%-j\u00e9nek haszn\u00e1lata 4,5mJ\/cm2 besug\u00e1rz\u00e1si energia mellett, az el\u0151bbi kett\u0151s k\u00f6t\u00e9s konverzi\u00f3s ar\u00e1nya 18,9%, az ut\u00f3bbi pedig 67,2%. A k\u00fcl\u00f6nbs\u00e9g nagyon jelent\u0151s.<\/p>\r\n\r\n\r\n\r\n

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A 6% HCPK (fotoinici\u00e1tor184) \u00e9s a kompozit fotoinici\u00e1tor \u00f6sszehasonl\u00edt\u00e1sa<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A harmadik k\u00eds\u00e9rletben 4% 184 \u00e9s 3% kompozit fotoinici\u00e1tort haszn\u00e1ltak, ami azt jelenti, hogy az ut\u00f3bbi kompozit fotoinici\u00e1tort haszn\u00e1l\u00f3 k\u00e9sz\u00edtm\u00e9nyben kisebb mennyis\u00e9g\u0171 fotoinici\u00e1tort haszn\u00e1ltak. Ugyanazon besug\u00e1rz\u00e1si energia (4,5mJ\/cm2 ) mellett az el\u0151bbi kett\u0151s k\u00f6t\u00e9s \u00e1talakul\u00e1si ar\u00e1nya 50,9%, m\u00edg az ut\u00f3bbi\u00e9 66,8%, ami magasabb.<\/p>\r\n\r\n\r\n\r\n

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A 4% HCPK (184-es fotoinici\u00e1tor) \u00e9s a 3% kompozit fotoinici\u00e1tor \u00f6sszehasonl\u00edt\u00e1sa<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A negyedik k\u00eds\u00e9rletben 6% 184 \u00e9s 4,5% kompozit fotoinici\u00e1tort haszn\u00e1ltak. Ha a sug\u00e1rz\u00e1si energia azonos marad (4,5 mJ\/cm2 ), akkor az el\u0151bbi kett\u0151s k\u00f6t\u00e9s \u00e1talakul\u00e1si ar\u00e1nya 58,3%, az ut\u00f3bbi\u00e9 pedig 67,9%. A harmadik \u00e9s negyedik k\u00eds\u00e9rlet azt mutatja, hogy a kett\u0151s k\u00f6t\u00e9s konverzi\u00f3s r\u00e1ta a kompozit fotoinici\u00e1tor formul\u00e1z\u00e1sa eset\u00e9n nagyobb lehet, m\u00e9g kisebb mennyis\u00e9g eset\u00e9n is.<\/p>\r\n\r\n\r\n\r\n

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A 6% HCPK (184-es fotoinici\u00e1tor) \u00e9s a 4,5% kompozit fotoinici\u00e1tor \u00f6sszehasonl\u00edt\u00e1sa<\/figcaption>\r\n<\/figure>\r\n\r\n\r\n\r\n

A k\u00eds\u00e9rleti eredm\u00e9nyek azt mutatj\u00e1k, hogy a kompozit fotoinici\u00e1torok haszn\u00e1lata jelent\u0151sen jav\u00edthatja a fotoinici\u00e1torok inici\u00e1l\u00e1si hat\u00e9konys\u00e1g\u00e1t. B\u00e1r a fenti k\u00eds\u00e9rletek csak egy fotoinici\u00e1tort ( 184-es fotoinici\u00e1tor) hasonl\u00edtottak \u00f6ssze referenciaobjektumk\u00e9nt, \u00e9s a besug\u00e1rz\u00f3 berendez\u00e9seket csak higanyl\u00e1mp\u00e1val v\u00e9gezt\u00e9k, az eredm\u00e9nyek is kell\u0151en szeml\u00e9ltetik a kompozit fotoinici\u00e1torok el\u0151nyeit.<\/p>\r\n\r\n\r\n\r\n

Tudjuk, hogy a fotoinici\u00e1torok haszn\u00e1lata a k\u00e9pletben nem a jobb, mert a t\u00fal sok fotoinici\u00e1tor elnyeli az ultraibolya f\u00e9nyt, ami nagym\u00e9rt\u00e9kben befoly\u00e1solja az ultraibolya f\u00e9ny behatol\u00e1si hat\u00e9konys\u00e1g\u00e1t a m\u00e9lykem\u00e9nyed\u00e9s sor\u00e1n, ez\u00e1ltal befoly\u00e1solja a kem\u00e9nyed\u00e9s m\u00e9lys\u00e9g\u00e9t.<\/p>\r\n\r\n\r\n\r\n

Ennek a kompozit fotoinici\u00e1tornak a haszn\u00e1lata nemcsak a k\u00e9sz\u00edtm\u00e9nyek k\u00f6lts\u00e9geit cs\u00f6kkentheti, hanem jobb m\u00e9lykem\u00e9nyed\u00e9st is el\u00e9rhet, cs\u00f6kkentheti a fotoinici\u00e1tor-maradv\u00e1nyokat \u00e9s cs\u00f6kkentheti a k\u00f6lts\u00e9geket.<\/p>\r\n

 <\/p>\r\n

L\u00e9pjen kapcsolatba vel\u00fcnk most!<\/b><\/strong><\/h2>\r\n

Ha sz\u00fcks\u00e9ge van Price-ra, k\u00e9rj\u00fck, t\u00f6ltse ki el\u00e9rhet\u0151s\u00e9g\u00e9t az al\u00e1bbi \u0171rlapon, \u00e1ltal\u00e1ban 24 \u00f3r\u00e1n bel\u00fcl felvessz\u00fck \u00d6nnel a kapcsolatot. \u00d6n is k\u00fcldhet nekem e-mailt info@longchangchemical.com<\/a><\/span>\u00a0munkaid\u0151ben ( 8:30-18:00 UTC+8 H.-Szombat ) vagy haszn\u00e1lja a weboldal \u00e9l\u0151 chatj\u00e9t, hogy azonnali v\u00e1laszt kapjon.<\/b><\/strong><\/h4>\r\n

 <\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Fotoinici\u00e1tor TPO<\/span><\/a><\/td>\r\nCAS 75980-60-8<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor TMO<\/span><\/a><\/td>\r\nCAS 270586-78-2<\/td>\r\n<\/tr>\r\n
PD-01 fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 579-07-7<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor PBZ<\/span><\/a><\/td>\r\nCAS 2128-93-0<\/td>\r\n<\/tr>\r\n
OXE-02 fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 478556-66-0<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor OMBB<\/span><\/a><\/td>\r\nCAS 606-28-0<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor MPBZ (6012)<\/span><\/a><\/td>\r\nCAS 86428-83-3<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor MBP<\/span><\/a><\/td>\r\nCAS 134-84-9<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor MBF<\/span><\/a><\/td>\r\nCAS 15206-55-0<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor LAP<\/span><\/a><\/td>\r\nCAS 85073-19-4<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor ITX<\/span><\/a><\/td>\r\nCAS 5495-84-1<\/td>\r\n<\/tr>\r\n
EMK fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 90-93-7<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor EHA<\/span><\/a><\/td>\r\nCAS 21245-02-3<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor EDB<\/span><\/a><\/td>\r\nCAS 10287-53-3<\/td>\r\n<\/tr>\r\n
DETX fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 82799-44-8<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor CQ \/ k\u00e1mforkinon<\/span><\/a><\/td>\r\nCAS 10373-78-1<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor CBP<\/span><\/a><\/td>\r\nCAS 134-85-0<\/td>\r\n<\/tr>\r\n
BP \/ benzofenon fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 119-61-9<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor BMS<\/span><\/a><\/td>\r\nCAS 83846-85-9<\/td>\r\n<\/tr>\r\n
F\u00e9nykezdem\u00e9nyez\u0151 938<\/span><\/a><\/td>\r\nCAS 61358-25-6<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 937<\/span><\/a><\/td>\r\nCAS 71786-70-4<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 819 DW<\/span><\/a><\/td>\r\nCAS 162881-26-7<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 819<\/span><\/a><\/td>\r\nCAS 162881-26-7<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 784<\/span><\/a><\/td>\r\nCAS 125051-32-3<\/td>\r\n<\/tr>\r\n
754 fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 211510-16-6 442536-99-4<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 6993<\/span><\/a><\/td>\r\nCAS 71449-78-0<\/td>\r\n<\/tr>\r\n
6976 fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 71449-78-0 89452-37-9 108-32-7<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 379<\/span><\/a><\/td>\r\nCAS 119344-86-4<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 369<\/span><\/a><\/td>\r\nCAS 119313-12-1<\/td>\r\n<\/tr>\r\n
Fotoinici\u00e1tor 160<\/a><\/span><\/td>\r\nCAS 71868-15-0<\/td>\r\n<\/tr>\r\n
F\u00e9nyind\u00edt\u00f3 1206<\/span><\/a><\/td>\r\n\u00a0<\/td>\r\n<\/tr>\r\n
1173 fotoinici\u00e1tor<\/span><\/a><\/td>\r\nCAS 7473-98-5<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Mi\u00e9rt haszn\u00e1ljon kompozit fotoinici\u00e1tort a f\u00e9nykem\u00e9ny\u00edt\u0151 formul\u00e1z\u00e1sban? A fotoinici\u00e1torok a f\u00e9nyre kem\u00e9nyed\u0151 formul\u00e1k nagyon fontos \u00f6sszetev\u0151i, \u00e9s a szabad gy\u00f6k\u00f6k forr\u00e1sai. A fotoinici\u00e1torok t\u00falzott haszn\u00e1lata azonban sz\u00e1mos probl\u00e9m\u00e1val j\u00e1r, p\u00e9ld\u00e1ul t\u00f6bb migr\u00e1l\u00f3 anyaggal, cs\u00f6kkent id\u0151j\u00e1r\u00e1s\u00e1ll\u00f3s\u00e1ggal, a bevon\u00f3film el\u00e9gtelen kikem\u00e9nyed\u0151 vastags\u00e1g\u00e1val \u00e9s megn\u00f6vekedett k\u00f6lts\u00e9gekkel. K\u00eds\u00e9rletek meg\u00e1llap\u00edtott\u00e1k, hogy [...]<\/p>","protected":false},"author":1,"featured_media":4977,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[185],"tags":[],"class_list":["post-4976","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-photoinitiator"],"yoast_head":"\nWhy use a composite photoinitiator in light curing formulating? - Longchang Chemical<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/longchangchemical.com\/hu\/why-use-a-composite-photoinitiator-in-light-curing-formulating\/\" \/>\n<meta property=\"og:locale\" content=\"hu_HU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Why use a composite photoinitiator in light curing formulating? - Longchang Chemical\" \/>\n<meta property=\"og:description\" content=\"Why use a composite photoinitiator in light curing formulating? Photoinitiators are a very important component of photocurable formulations and are a source of free radicals. However, excessive use of photoinitiators will bring many problems, such as more migratory substances, reduced weather resistance, insufficient cured thickness of the coating film, and increased cost. 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