Khoom Taw Qhia

Khoom npe	UV-P,Drometrizole
Tshuaj npe	2-(2-Hydroxy-5-methylphenyl) benzotriazole
CAS Nr.	2440-22-4
Hom	Ultraviolet Absorber
Molecular Formula	C13H11N3O
Molecular Luj	225.25 g / mol
Qhov tshwm sim	Dawb rau pom daj hmoov
Melting Point	128-132 degree
Flash Point	197 degree
Qhov ntom	1.38g / cm3
Absorption wavelength ntau yam	290-400 nm
Tshauv	Tsawg dua lossis sib npaug li 0.1%
Purity	Ntau dua lossis sib npaug li 99.0%

UV-P, tseem hu ua Drometrizole, yog benzotriazole UV absorber siv los tiv thaiv polymers, coatings thiab lwm yam khoom organic los ntawm degradation los ntawm ultraviolet hluav taws xob.

Raws li cov organic UV absorber, UV-P xaiv absorbs teeb meem UV hluav taws xob thiab hloov lub zog absorbed rau hauv daim ntawv tsis zoo los ntawm molecular so. Qhov no pab txo cov duab- degradation ntawm polymer chains thiab tuaj yeem txhim kho kev tiv thaiv kom tsis muaj xim, deterioration ntawm deg, tawg thiab poob ntawm lub cev lub zog thaum lub sij hawm raug UV teeb.

UV-P yog tshwj xeeb tshaj yog haum rau cov ntawv thov uas tswj qhov zoo li qub thiab kev ua haujlwm ntawm cov ntaub ntawv polymer yog qhov tseem ceeb. Nws ua ke ntawm UV nqus, polymer compatibility thiab kuj tsis tshua pom pom - lub teeb haum ua rau Drometrizole pab tau nyob rau hauv cov yas xaiv, txheej, nplaum thiab lwm yam polymer formulations.

Solubility ntawm 25℃(g 100 / g daws)
Solvent	Solubility	Solvent	Solubility
Acetone	2.5	Dioctyl phthalate	2.5
Ethanol	0.3	Dioctyl sebacate	2.4
Methanol	0.2	Methyl ethanol	3.9
Carbitol	2.6	Methyl methacrylate	5.0
Ethyl acetate hmoov	3.5	Styrene	7.2
Butyl acetate hmoov	3.0	Trimethylbenzene phosphate	3.3
Benzene	6.9	Soluble roj av	0.9
Toluene	6.0	Petroleum hnyav	1.5
Cyclhexane	0.7	Dej	0

Cov yam ntxwv tseem ceeb ntawm UV-326

Cov qauv molecular ntawm Drometrizole belongs rau tsev neeg hydroxyphenyl benzotriazole. Benzotriazole UV absorbers tau dav siv hauv polymer stabilization vim tias lawv tuaj yeem muab kev nqus tau zoo ntawm UV hluav taws xob thaum txwv kev cuam tshuam nrog lub teeb pom kev.

UV-P UV absorber tuaj yeem pab tiv thaiv polymer matrices tiv thaiv UV-induced yees duab-oxidative degradation. Nyob ntawm cov polymer thiab formulation, nws siv yuav pab tswj cov xim stability, nto tsos thiab txhua yam kev ua tau zoo thaum sab nraum zoov los yog lub teeb raug.

Lwm tus yam ntxwv tseem ceeb yog nws qhov tsim nyog rau kev koom ua ke rau hauv cov txheej txheem organic polymer. Qhov ua tau zoo ntawm UV-P yog nyob ntawm hom resin, additive concentration, processing temperature, product thickness, pigment system and expect exposure conditions.

Kev siv ntawm UV-326

UV-P yog siv los ua UV absorber rau plastics thiab polymer cov ntaub ntawv uas yuav tsum tau muaj kev tiv thaiv tiv thaiv hluav taws xob ultraviolet. Nws tuaj yeem muab tso rau hauv cov thermoplastics xaiv, elastomer systems thiab lwm yam polymer formulations los txhim kho kev tiv thaiv tshav ntuj thiab dag UV raug.

Hauv cov yas, UV-P tuaj yeem siv rau hauv cov qauv uas ntev - xim tuav thiab tsis kam mus rau daim duab- kev laus yog qhov tseem ceeb. Nws yog qhov tsim nyog rau kev xaiv cov ntawv thov uas suav nrog polyethylene, polypropylene, PVC thiab lwm yam txheej txheem polymer, raug rau kev sib raug zoo thiab kev sim tshuaj.

Hauv cov txheej txheem thiab cov xim, Drometrizole tuaj yeem muab tso rau hauv cov qauv tsim nyog los txo UV-induced degradation ntawm txheej thiab hauv qab polymer substrate. Qhov no ua rau UV-P cuam tshuam rau cov txheej txheem sab nraum zoov thiab lwm yam kev siv uas qhov tsos thiab kev ua haujlwm tseem ceeb.

UV-P kuj tseem raug txiav txim siab rau cov nplaum nplaum, sealants, roj hmab thiab lwm yam khoom siv polymer-raws li cov ntaub ntawv uas xav tau kev tiv thaiv ntxiv tiv thaiv hluav taws xob ultraviolet. Hauv cov ntawv thov no, xaiv qhov tsim nyog UV absorber yuav tsum coj mus rau hauv tus account cov tshuaj muaj pes tsawg leeg thiab kev ua haujlwm ntawm cov qauv.

Rau kev thov sab nraum zoov, UV-P tuaj yeem ua ke nrog HALS (Hindered Amine Light Stabilizers) thiab antioxidants. Cov stabilizers no ua haujlwm los ntawm cov txheej txheem sib txawv thiab tuaj yeem muab kev tiv thaiv ntxiv rau cov duab -oxidative degradation.

FAQ

Q: Puas yog UV-P tuaj yeem siv ua ke nrog HALS?

A: Yog. UV-P thiab HALS (Hindered Amine Light Stabilizers) tuaj yeem muab kev tiv thaiv ntxiv hauv cov txheej txheem polymer stabilization. UV-P feem ntau absorbs teeb meem UV hluav taws xob, thaum HALS ua haujlwm feem ntau los ntawm kev tawm tsam dawb- radical tshua cuam tshuam nrog cov duab- oxidative degradation. Lawv cov kev sib xyaw ua ke tuaj yeem raug txiav txim siab rau cov yas, txheej thiab lwm yam ntaub ntawv uas xav tau kev txhim kho ntev ntev - UV thiab huab cua tsis kam.

Q: Vim li cas cov qauv yas tseem tig daj tom qab ntxiv UV absorber?

A: Qhov sib ntxiv ntawm UV absorber tsis tas yuav tiv thaiv txhua hom daj. Discoloration tuaj yeem tshwm sim los ntawm daim duab -oxidation, thermal degradation thaum lub sij hawm ua, pigment interacting, tsis txaus stabilizer concentration lossis incompatibility ntawm additives thiab cov polymer matrix. Hauv kev siv sab nraum zoov, lub zog ruaj khov ua ke nrog UV absorber, HALS thiab antioxidants yuav muab kev tiv thaiv ntau dua li siv UV-P ib leeg.

Q: Dab tsi ua rau UV absorber tsiv teb tsaws lossis tawg hauv cov yas?

A: UV absorber tsiv teb tsaws los yog qhov chaw tawg tuaj yeem cuam tshuam nrog kev tsis sib haum xeeb ntawm cov khoom siv ntxiv thiab polymer matrix, ntau npaum li cas, kev ua haujlwm, polymer crystallinity thiab lub cev lub cev ntawm lub stabilizer. Yog tias UV-P tshwm rau ntawm cov khoom siv tom qab ua tiav lossis kev laus, cov qauv tsim yuav tsum raug soj ntsuam rau cov ntsiab lus ntxiv, kev sib haum xeeb thiab kev ua haujlwm kub. Xaiv lub stabilizer sib xws los yog optimizing tag nrho cov formulation yuav pab txo tau kev tsiv teb tsaws.

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