tala fou

O le a le photoinitiators ma le tele o lou iloa e uiga i photoinitiators? Photoinitiators o se ituaiga o mea faʻapipiʻi e mafai ona mitiia le malosi i se umi galu i le ultraviolet (250-420nm) poʻo le vaʻaia (400-800nm) itulagi, faʻatupuina faʻamaʻi saoloto, cations, ma isi, ma amata ai le monomer polymerization, crosslinking, ma togafitiga. . Ae ui i lea, o le galu umi e mitiia e photoinitiators eseese e eseese.

O le faʻavasegaina o photoinitiators e mafai ona vaevaeina i ni vaega se lua: free radicals ma ionic type. E mafai ona vaevaeina faʻamalosi saoloto i le Ituaiga I ma le Ituaiga II; E mafai ona vaevaeina ituaiga Ionic i ituaiga cationic ma anionic. O le photoinitiator o le amataga lea o le faʻatulagaina, ma o lona faʻaaogaina mulimuli e aʻafia i manaʻoga faʻatinoga ma le faiga faʻavae. E naʻo le photoinitiator sili ona talafeagai, e leai se photoinitiator sili.

Photoinitiators o loʻo tu i luga i le vaitafe i totonu o fale gaosi oloa. O mea mata'utia o lo'o i totonu ole filifili ole alamanuia fa'amaloloina ole UV e masani lava o mea fa'ameamea fa'apitoa ma vaila'au fa'apitoa, fa'atasi ai ma photoinitiators o lo'o i luga o le laina alamanuia. O le faʻasologa o mea faʻapipiʻi thiol e mafai ona faʻaaogaina e avea ma mea mataʻutia mo photoinitiators, ma e masani ona faʻaaogaina i le fanua o vailaʻau ma vailaau faʻasaina; Photoinitiators o loʻo faʻaaogaina i vaega eseese e pei o photoresists ma vailaʻau lagolago, UV coatings, UV inks, ma isi, faʻatasi ai ma faʻaoga faʻaogaina e faʻaogaina ai oloa eletise, mea teuteu fale ma mea fau fale, vailaʻau ma togafitiga faafomaʻi, ma isi.

E i ai ituaiga eseese o photoinitiators ma le tele o faʻaoga, faʻafefea la ona tatou filifilia? O le isi, se'i ou ta'u atu ia te oe le auala e filifili ai nisi o oloa e masani ona maua.

Muamua, ou te fia faailoa atuphotoinitiator 819, lea e mafai ona faʻaaogaina mo lanu paʻu palasitika faʻamalolo UV. UV coatings, ona o le lelei o le faatinoga ma le lelei o le gaosiga, ua faʻaaogaina lautele i luga o atigi palasitika o mea faʻaeletoroni eseese ma meafale. Ae ui i lea, o le loloto o le solidification o UV coatings pe a uma ona valivali e le lelei, e mafua ai le le lelei o le faʻapipiʻiina o ata tifaga ma le le lelei o le faʻasalalauina ma le faʻatulagaina o pigments e UV resins, e matua aʻafia ai foliga o le coatings, o le mea lea, o le faiga masani o le fausiaina o le faʻaaogaina muamua o le solvent. fa'ailoga lanu mo le valivali, ona fa'aoga lea o le varnish UV pe a uma ona tao e fa'aleleia atili ai mea fa'aletino eseese o le ata vali.

Photoinitiator 184o se faʻataʻitaʻiga tuʻufaʻatasia lelei ma samasama e teteʻe fua (I) faʻatasi ma le lelei o le taimi umi e teu ai, maualuga le amataina, ma le lautele o le faʻaogaina o le UV. E masani ona fa'aogaina mo le fa'amaloloina o le UV o mea e le'i fa'atutumu (e pei o esters acrylic) fa'atasi ai ma monomers vinyl ma oligomers ta'itasi pe tele, ma e fetaui lelei mo pa'u ma vaitusi e mana'omia ai le tikeri samasama maualuga.

Photoinitiator TPO-Lo se ituaiga o vai photoinitiator, lea e faʻaaogaina i le faiga faʻavae ma le samasama maualalo ma le manogi manogi. E masani ona faʻaaogaina i vaitusi lolomi siliki, vaitusi lomitusi Planographic, vaitusi lolomi flexographic, photoresist, varnish, ipu lomitusi ma isi fanua.

O lephotoinitiator TPOe masani ona faʻaaogaina i faiga paʻepaʻe, ma e mafai ona faʻaaogaina i le faʻamalolo o le UV, lomitusi lolomi, faʻapipiʻi faʻamaʻi UV, faʻapipiʻi fibre Optical, photoresists, photopolymerization plates, stereolithographic resins, composites, tooth fillers, etc.

Photoinitiator 2959 o se photoinitiator e le samasama lelei ma maualuga le gaioiga, maualalo le manogi, leai se samasama, maualalo volatility, le lagona i le polymerization okesene, ma le maualuga o le faʻamaloloina lelei. Tulaga fa'apitoa ole hydroxyl e faigofie ona so'o i totonu o fa'alavalava fa'avae vai. E fetaui lelei mo esters acrylic faʻavae vai ma polyesters unsaturated. O le Photoinitiator 2959 ose mea fa'apipi'i ua fa'amaonia e le FDA fa'ailoga mo le le fa'afeso'ota'i sa'o ma mea'ai.

Benzophenoneo se free radical photoinitiator e masani ona faʻaaogaina i faiga faʻamalolo UV faʻasaʻo saoloto e pei o coatings, inks, adhesives, ma isi. O se vaeluagalemu foi i pigments organic, pharmaceuticals, mea manogi, ma insecticides. O lenei oloa o se styrene polymerization inhibitor ma mea manogi fixative, lea e mafai ona maua ai le manogi o se tofo suamalie, ma e faʻaaogaina lautele i le manogi ma le fasimoli.

O oloa e tutusa ma photoinitiators o ultraviolet absorbers. O nisi taimi, e masani ona le mafai e tagata ona iloa le va o le lua.UV absorberse mafai ona sui photoinitiators. Ona o UV absorbers o le ituaiga sili ona faʻaaogaina o le moli faʻamautu ma e mafai ona fetaui ma pe sui photoinitiators mo le faʻaaogaina, ma o latou aoga e matua lelei lava. Photoinitiators e faʻaaogaina faapitoa mo le faʻapipiʻiina o ata, mo vaitusi, faʻapipiʻi, ma e mafai foi ona faʻaaogaina i fale gaosi oloa ma eletise. UV absorbers o loʻo i ai le tele o faʻaoga faʻaoga, e masani lava ona faʻaaogaina i mea teuteu ma manaʻoga maualuga. I le taimi nei, o le tau o le ultraviolet absorbers e maualuga tele, ae o photoinitiators e maualalo. E mafai ona e filifilia oloa talafeagai e fa'atatau i ou lava mana'oga.

O matou o se tagata fa'apolofesa fa'ainisinia gaosi oloa. I le faaopoopo atu i oloa o loʻo taʻua i luga, o loʻo i ai foi a matou oloa tutusa: