光稳定剂
产品名称: LS-783
Characterization LS 783 isasynergisticmixtureoflightstabilizer944andlight stabilizer622.It
isaversatilelightstabilizerwithgoodextractionresistance,lowgasfadingandlowpigmentinteraction.LS 783isparticularlywellsuitedforLDPE,LLDPE,HDPEfilms,tapesandthicksectionsandforPPfilms.Itisalsotheproductofchoiceforthicksectionswhereindirectfoodcontactapprovalisrequired.
Chemical name:Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]])
Tinuvin 622: Butanedioicacid, dimethylester, polymer with 4-hydroxy-2,2,6,6-tetramethyl-1-piperidineethanol
Structure light stabilizer944
Molecularweight Mn =2000–3100g/mol
and
Molecularweight Mn =3100–4000g/mol
Productforms Appearance:whitetoslightlyyellowpastilles
Guidelinesforuse Thicksections*: UVstabilizationofHDPE,LLDPE, 0.05–1%
LDPEandPP
Films*: UVstabilizationofLLDPEandPP 0.1–1.0%
Tapes: UVstabilizationofPPandHDPE 0.1–0.8%
Fibers: UVstabilizationofPP 0.1–1.4%
Physical properties Meltingrange: 55–140°CFlashpoint(DIN51758): 192°C
Bulkdensity: 514g/l
Applications LS783areasofapplicationincludepolyolefins(PP,PE),olefincopoly-merssuchasEVAaswellasblendsofpolypropylenewithelastomers,andPA.