ngwaahịa

ultraviolet ìhè absorber

nkowa nkenke:


Nkọwa ngwaahịa

Mkpado ngwaahịa

Synonyms na bekee

antioxidant

njirimara kemịkalụ

Ultraviolet absorber bụ ụdị ihe nkwụnye ọkụ, nwere ike itinye ìhè anyanwụ na isi iyi fluorescent na akụkụ ultraviolet, mana onwe ya anaghị agbanwe.
N'ihi na ụzarị anyanwụ nwere nnukwu ọkụ ultraviolet na-emerụ ihe ndị nwere agba, ogologo ya dị ihe dị ka 290-460 nanometers, ìhè ultraviolet ndị a na-emerụ ahụ site na mmeghachi omume Redox nke kemịkalụ, ụmụ irighiri agba na-emecha decompose na-ada.
Enwere ụzọ anụ ahụ na nke kemịkal iji gbochie mmebi agba site na ọkụ UV na-emerụ ahụ.
Nke a bụ okwu mmalite dị nkenke maka usoro kemịkal, ya bụ, iji ihe mgbochi UV na-echebe ihe mgbochi dị mma, ma ọ bụ mee ka mbibi ya ghara imebi ya.
Uv absorbers kwesịrị inwe ọnọdụ ndị a
(1) nwere ike ịmịnye ọkụ ultraviolet ike (karịsịa ogologo wavelength nke 290-400nm);(2) Nkwụsi ike nke okpomọkụ dị mma, ọbụna na nhazi ahụ agaghị agbanwe n'ihi okpomọkụ, ọkụ ọkụ dị ntakịrị;Nkwụsi ike kemịkalụ dị mma, enweghị mmeghachi omume ọjọọ na ihe ndị dị na ngwaahịa ahụ;(4) Ezi miscibility, nwere ike evenly chụsasịrị na ihe onwunwe, ọ dịghị ntu oyi, ọ dịghị exudation;(5) Nkwụsi ike nke fotochemical nke onye na-aṅụ ihe n'onwe ya dị mma, adịghị emebi emebi, adịghị agbanwe agba;⑥ enweghị agba, enweghị egbu egbu, enweghị isi;⑦ iguzogide ịsacha imi mmiri;⑧ Dị ọnụ ala ma dị mfe ịnweta;9. Na-adịghị ike ma ọ bụ na-adịghị edozi na mmiri.
Enwere ike kewaa ndị na-anabata Uv n'ime otu ndị a dịka usoro kemịkalụ ha si dị: salicylate esters, phenylketones, benzotriazoles, acrylonitrile dochie anya, triazines na amines egbochiri.

Ntinye ngwaahịa na atụmatụ

Ultraviolet absorbent bụ nke a na-ejikarị otu ụdị ọkụ stabilizer, dị ka usoro ya nwere ike kewaa n'ime salicylate esters, benzophenone, benzotriazole, acrylonitrile dochie anya, triazines, wdg, ngwa mmepụta ihe nke benzophenone na benzotriazole.The quencher bụ tumadi a metal mgbagwoju, dị ka divalent nickel mgbagwoju, mgbe na ultraviolet absorbent na, synergistic mmetụta, ultraviolet absorbent bụ ụdị ìhè stabilizer, nwere ike banye ìhè anyanwụ na fluorescent ìhè isi iyi na ultraviolet akụkụ, na ya onwe ya adịghị agbanwe.
N'ihi na ụzarị anyanwụ nwere nnukwu ọkụ ultraviolet na-emerụ ihe ndị nwere agba, ogologo ya dị ihe dị ka 290-460 nanometers, ìhè ultraviolet ndị a na-emerụ ahụ site na mmeghachi omume Redox nke kemịkalụ, ụmụ irighiri agba na-emecha decompose na-ada.
Enwere ụzọ anụ ahụ na nke kemịkal iji gbochie mmebi agba site na ọkụ UV na-emerụ ahụ.
Nke a bụ okwu mmalite dị nkenke maka usoro kemịkal, ya bụ, iji ihe ndị na-ekpo ọkụ UV na-echebe ihe mgbochi dị mma, ma ọ bụ mee ka mbibi ya dị ike.

jiri

Ọ nwere ike n'ụzọ dị irè banye ultraviolet ìhè na a wavelength nke 270-380 nm, tumadi ji polyvinyl chloride, polystyrene, unsaturated resin, polycarbonate, polymethyl methacrylate, polyethylene, ABS resin, epoxy resin na cellulose resin, wdg Ọ bụ adabara photosensitive ihe. dị ka ihe nkiri agba, ihe nkiri agba, akwụkwọ agba na polymer, wdg karịsịa kwesịrị ekwesị maka ngwaahịa transperent na-enweghị agba na ìhè;Maka nnabata siri ike, ihe na-etinye ultraviolet dị elu

ngwugwu na njem

B. Enwere ike iji ngwaahịa a,,25KG, BAERRLS.
C. A na-echekwa ụlọ ahịa na ebe dị jụụ, kpọrọ nkụ na ikuku ikuku n'ime ụlọ.Ekwesịrị ka a na-emechi arịa nke ọma mgbe ejiri ya nke ọ bụla tupu ejiri ya.
D. Ngwaahịa a kwesịrị ka a mechie nke ọma n'oge njem iji gbochie mmiri, alkali siri ike na acid, mmiri ozuzo na adịghị ọcha ndị ọzọ ịgwakọta.


  • Nke gara aga:
  • Osote:

  • Dee ozi gị ebe a ziga anyị ya