光稳定剂622944
光稳定剂944主要原材料
光稳定剂944主要原材料光稳定剂944是一种常用的光稳定剂，它主要由苯并噻吩类化合物制成。
光稳定剂是一种能够吸收紫外光并转化为热能的物质，从而保护聚合物材料不受紫外光的影响。
光稳定剂944具有优异的紫外吸收性能和热稳定性，被广泛应用于塑料、橡胶和纤维等领域。
光稳定剂944的主要原料是对苯二酚和硫化碳。
对苯二酚是一种常见的有机化合物，它具有良好的紫外吸收性能。
硫化碳则是一种无色液体，具有较强的溶解性和挥发性，可以作为反应介质和溶剂使用。
通过对苯二酚和硫化碳的反应，可以得到苯并噻吩类化合物，进而制备出光稳定剂944。
光稳定剂944的应用非常广泛。
在塑料制品中，添加光稳定剂944可以有效延长塑料制品的使用寿命，防止因紫外光照射而引起的老化、变黄和变脆等问题。
在橡胶制品中，光稳定剂944可以提高橡胶制品的耐候性和耐热性，延长其使用寿命。
在纤维制品中，光稳定剂944可以防止纤维受紫外光照射而褪色和劣化。
除了塑料、橡胶和纤维制品，光稳定剂944还广泛应用于涂料、油漆和胶粘剂等领域。
添加光稳定剂944可以提高涂料和油漆的耐候性，防止因紫外光照射而引起的褪色和表面老化问题。
在胶粘剂中，光稳定剂944可以提高胶粘剂的耐候性和粘结强度，延长其使用寿命。
光稳定剂944的应用不仅可以提高产品的质量和性能，还可以降低材料的成本。
通过添加光稳定剂944，可以延长产品的使用寿命，减少因老化而导致的更换和维修费用。
同时，光稳定剂944还可以降低产品的生产成本，提高生产效率。
总结起来，光稳定剂944主要由苯并噻吩类化合物制成，其原料包括对苯二酚和硫化碳。
光稳定剂944在塑料、橡胶、纤维、涂料、油漆和胶粘剂等领域有着广泛的应用。
通过添加光稳定剂944，可以提高产品的耐候性和热稳定性，延长产品的使用寿命，降低生产成本。
光稳定剂944的研发和应用将进一步推动材料科学的发展，为各行业带来更好的产品和解决方案。
光稳定剂LS622
■聚合物添加剂受阻胺光稳定剂（HALS）622化学成分化学名称聚丁二酸(4-羟基-2,2,6,6-四甲基-1-哌啶乙醇)酯CAS 65447-77-0分子式(C15H25NO4)n化学结构规格指标及物理特性规格单位标准外观白色颗粒熔点℃50.00-70.00挥发分% ≤0.50灰分% ≤0.10澄清度澄清透光率450nm % ≤95.00500nm % ≤97.00产品特点及应用●LS 622 是聚合型受阻胺光稳定剂（HALS），在多种聚合物和用途中有效，尤其适用于PE材料（注塑，滚塑，膜材料及胶带），EVA，PP纤维，聚氨酯，聚缩醛，弹性体，胶黏剂及密封件等。
该产品对含有炭黑体系的材料具有优异的光稳定效果●取决于用途的不同，LS 622的一般添加水平在0.05-1.5%之间。
须采用适当的试验来判定特定用途中所添加量是否合适该产品与其它光稳定剂一起使用，表现出协同效应，尤其是高分子HALS（如LS 944 LS 119）、苯甲酸和紫外线吸收剂。
特点-不变色-低挥发分，抗迁移-弱碱性，降低与燃料和其他稳定剂的相互作用-广泛适用于食品接触材料包装25KG 纸箱搬运及储存在搬运或使用该产品之前请查阅安全数据表。
若以适当的方式贮存在25°C以下的干燥区域，保质期为一年声明*以下信息替代了买方文件。
关于适销性或适用于特定用途，不存在任何明示或暗示担保。
我们所提供的使用建议，不得被视为侵犯任何专利权的原因。
对于因疏忽或违反条款、严格赔偿责任、民事侵权行为或与产品有关合同而产生的附带、结果性或间接损失，概不负责。
买方唯一能要求赔偿的是买方的买价。
数据和结果以受监控的研究或实验室研究为依据，买方应根据预定使用条件进行检测，确认这些数据和结果的准确性。
并未针对以下应用进行检测，因此不建议将产品用于：长期接触粘膜、破损的皮肤或血液；或植入人体。
光稳定剂 944
光稳定剂 944
产品说明：
光稳定剂944是一种用于塑料制品的聚合型高分子量受阻胺类光稳定剂。
它可应用在聚烯烃塑料(如PP 、PE)，烯烃共聚物(如EVA 和丙烯与橡胶的混合体等)。
应用在交联聚乙烯中更能显出其卓越的功效。
除聚烯烃塑料外，它还可用于聚苯醚复合物(PPE)，聚甲醛(polyacetals)，聚酰胺(polyamides)，聚氨酯(polyurethanes)，软硬PVC 及PVC 共混物等。
另外，光稳定剂944对苯乙烯类， 橡胶和胶粘体也有良好的功效。
光稳定剂 944与紫外线吸收剂合用具有协调效果。
由于聚合体的特殊结构，其平均分子量可达3000，它可用于要求低挥发及少量迁移的系统中， 特别适用于薄膜与纤维中。
光稳定剂 944有抗氧剂的效果，同时对聚合物有长期热稳定效果。
CAS NO ：70624-18-9
结 构 式： N (CH 2)6N
HN
C CH 2CH 3
CH 2CH 2CH 3H 3CH 2C n
主要指标：
特性及用途：
硫或含卤素类可能会影响光稳定剂 944的效果。
如有些稳定剂，杀虫剂及阻燃剂，可能会与光稳定剂 944产生付反应。
如需与此类物质共用，为保证效果，建议先进行小试。
贮运及包装：
光稳定剂944性质稳定，无特殊的贮存要求，存放时避免高温及潮湿。
用纸板桶内衬塑袋包装，净重25kg /桶，也可根据客户要求设计。
紫外线吸收剂944的介绍
奥珞斯紫外线吸收剂944的介绍【1】CAS NO.:71878-19-8【2】质量标准：外观白色或淡黄色颗粒粉末挥发份%（m/m）≦0.5软化点（环球法）℃≥100灰分%（m/m）≦0.5分子量2000--3000透光率425nm ≥90%500nm ≥95%【3】性质：光稳定剂944为新一代聚合型高分子量受阻胺光稳定剂，其分子中有多种官能团，故关稳定性能高，由于分子量大。
故具有优良的加工热稳定性，很低的挥发性和耐迁移、耐萃取、耐气体褪色等特点。
具有良好的与树脂相容性，很好的耐水抽提性，与一般的低分子量受阻胺光稳定剂相比，具有优秀的长效抗光老化性质。
【4】用途：主要用于聚丙烯纤维、低密度聚乙烯薄膜、聚苯乙烯、ABS树脂、聚丙烯胶带、聚苯乙烯及食品包装等制品。
光稳定剂944与抗氧剂、紫外线吸收剂具有良好的协同效果，能进一步提高制品的耐热、耐光老化效果。
在制品加工时直接配合或以母料形式混配。
Ouroboros Ultraviolet Absorbent 9441. Chemical Name: Light stabilizer-9442. CAS NO.:71878-19-83. Specification:Appearance White or yellowish crystallinepowderV olatility ≦0.5Ring and ball softening point ≥100℃Ash content（m/m）≦0.5Molecular weight 2000--3000 Light transmittance 425nm ≥90%500nm ≥95%4. Product Property:It’s a new generation of hmw-polymeric hindered amine light stabilizer. Due to the large of molecular weight, it has excellent processing thermal stability and lower volatility that will be resist transference, extraction and being discolored by gases. With the good compatibility of resin, it is good at resisting water extraction. Ithas long-term photoaging resistance that compare with lmw-polymeric hindered amine light stabilizer.5. Purpose:It mainly works on the products of polypropylene fiber, low-density polyethylene, polystyrene, ABS resin, polypropylene tape, polystyreneand the food package. Its synergism both anti-oxygen and ultraviolet absorbent, that can improve the effect of the products’heat resistanceand photo-aging resistance. When processing, it can work in with other products or mix in master-batch form.。
受阻胺类光稳定剂的研究进展
受阻胺类光稳定剂的研究进展摘要：HALS具有捕获自由基和分解过氧化物的能力，其光稳定效果是传统吸收型光稳定剂的2到4倍。
HALS除了具有光稳定作用外，还具有抗氧化、吸收紫外线等多种功能，与紫外线吸收剂、抗氧化剂有很好的协同作用。
这种稳定剂不会使树脂着色，与多种树脂相容性好，低毒或无毒，可满足薄膜制品、纤维制品和食品包装材料的要求。
是目前发展最快、前景最广阔的一种新型光稳定剂。
关键词：受阻胺；光稳定剂；合成工艺；受阻胺光稳定剂是一种新型高效的光稳定剂，广泛应用于高分子材料中，其研发过程受到国内外关注。
介绍了受阻胺光稳定剂的作用机理，综述了其发展现状，并对其发展前景进行了展望。
1受阻胺光稳定剂的作用机理1.1 捕捉自由基。
受阻胺官能团属于脂环胺结构，在有氧状态下吸收光能后可转化为氮氧自由基NO。
这些氮氧自由基不仅能捕获高分子材料光氧化降解过程中产生的烷基活性自由基，而且在光稳定化过程中具有再生功能，从而抑制链式反应达到保护目的。
1.2 氢过氧化物的分解。
一般认为，氨基在与氢过氧化物中的氢结合后分解成氮氧自由基，然后与活性自由基反应，将其转化为稳定的醇和酮化合物。
结果也证实了受阻胺对氢过氧化物有浓度效应。
1.3 捕捉重金属。
HALS中的氮有一个与金属配位的孤对，能与高分子材料中的金属离子强烈配位，从而达到保护高分子材料的目的。
1.4 淬灭单线态氧。
HALS几乎不淬灭激发态，但其氧化产物NO显示出很高的淬灭效率。
受阻胺氮氧自由基可以通过转移能量使激发态的单线态氧回到基态，从而防止单线态氧引起聚合物降解反应，起到防止光老化的作用。
2受阻胺光稳定剂的发展现状2.1 高分子定量。
随着高分子材料应用范围的不断扩大，低分子量受阻胺光稳定剂由于易迁移、易挥发、耐萃取等特点，已经难以满足人们的需求。
因此，汽巴-嘉积公司推出了第一款高分子受阻胺光稳定剂Tinuvin622，后来又推出了另一款高分子产品Chimassorb944，性能更好，至今仍在广泛使用。
光稳定剂944的MSDS
MATERIAL SAFETY DATA SHEETMSDS Number: 00407Effective Date:01/25/2006Page: 1 of 7 Product Name: Lowilite® 94 Granular and Lowilite® 94NDB™S ECTION I-C HEMICAL P RODUCT A ND C OMPANY I DENTIFICATIONProduct Name: Lowilite 94 Granular and Lowilite 94 NDB™Supplier: Chemtura USA CorporationAddress: 199 Benson Road City: MiddleburyState: Connecticut Zip: 06749Emergency Telephone Number: 1-800-949-5167Information Telephone Number: 1-765-497-6100 Fax:1-765-497-6123Chemtrec Phone: 1-800-424-9300; Internationally call 703-527-3887Effective Date: 01/25/2006 Supercede Date: 06/03/2004MSDS Prepared By: Chemtura Product Safety GroupSynonyms: Poly[[6-[(1,1,3,3-tetramethylbutyl)amino]-1,3,5-triazine-2,4-diyl][(2,2,6,6-tetramethyl-4-piperidinyl)imino]-1,6-hexanediyl[(2,2,6,6-tetramethyl-4-piperidinyl)imino]]Product Use: Polymer AdditiveChemical Name: 1,6-Hexanediamine, N,N'-bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymer with 2,4,6-trichloro-1,3,5-triazine, reaction products with 2,4,4-trimethyl-2Chemical Family: Polymeric hindered amineAdditional InformationManufacturer:Great Lakes Chemical Corporation, A Chemtura CompanyP.O. Box 2200West Lafayette, Indiana 47996-2200S ECTION II-C OMPOSITION/I NFORMATION ON I NGREDIENTSI NGREDIENT N AME CAS N O. % E XPOSURE L IMITSLowilite 94 70624189 100 Y (Hazardous)15 mg/m3 (PNOR) (OSHA PEL TWA)Not established (OSHA PEL STEL)Not established (OSHA PEL CEIL)10 mg/m3 (PNOS) (ACGIH TLV TWA)Not established (ACGIH TLV STEL)Not established (ACGIH TLV CEIL)*Indented chemicals are components of previous ingredient.Additional InformationCAS REG. NO. 70624-18-9 is chemically equivalent to CAS REG. NO. 71878-19-8.5 mg/m3 Respirable Dust Level (OSHA)3 mg/m3 Respirable Dust Level (ACGIH)PNOR = Particulates Not Otherwise RegulatedPNOS = Particulates Not Otherwise SpecifiedS ECTION III-H AZARDS I DENTIFICATIONEmergency Overview:White to light yellow granules or pelletsNo odorMay cause eye irritation.May cause respiratory tract irritation.Dusts can form an explosive mixture with air.S ECTION III-H AZARDS I DENTIFICATIONRelevant Routes of Exposure: Ingestion, inhalation and skin absorptionSigns and Symptoms of Overexposure:General reddening and irritation to the skin and eyes, mucous membraneirritation, upper respiratory tract irritation.Medical Conditions GenerallyAggravated By Exposure: None reportedPotential Health Effects: See Section XI for additional information.Eyes: May cause eye irritation.Skin: Not expected to be a hazard in normal industrial use.As with any dust, mechanical irritation is possible to the skin.May cause skin irritation after repeated exposure.Ingestion: Not expected to be a hazard in normal industrial use.Long term oral exposure may result in liver damage.Long term overexposure may result in spleen effects.Long term overexposure may produce blood effects.Long term overexposure may produce lymph node effects.Long term oral exposure may cause developmental effects.Inhalation: May cause respiratory tract irritation.Chronic Health Effects: May cause liver, lymph node, blood, spleen and developmental effects based onanimal data.Carcinogenicity:NoNTP: No ACGIH:NoIARC: No OTHER:OSHA: NoAdditional InformationNo information availableS ECTION IV-F IRST A ID M EASURESEyes:Flush with large volumes of water for at least 15 minutes. Get medical attention. Skin: Wash with large volumes of soap and water for at least 15 minutes. If irritationdevelops, get medical attention.Ingestion: If conscious, give person 1 to 2 glasses of water. Get medical attentionimmediately.Inhalation: Remove person to fresh air. Get medical attention.Antidotes: No information availableNotes to Physicians and/or Protectionfor First-Aiders: No information availableAdditional InformationNo information availableS ECTION V-F IRE F IGHTING M EASURESFlammable Limits in Air (% byVolume):Not availableFlash Point: >160 degrees CAutoignition Temperature: 390 degrees C BAMExtinguishing Media: All conventional media are suitable.Fire Fighting Instructions: Wear a self-contained breathing apparatus and protective clothing to prevent skinand eye contact in fire situations.Unusual Fire and Explosion Hazards:Under fire conditions, toxic and irritating fumes may be emitted.Dusts can form an explosive mixture with air.Flammability Classification: Combustible dustS ECTION V-F IRE F IGHTING M EASURESKnown or Anticipated HazardousProducts of Combustion: Oxides of nitrogenCarbon monoxide and carbon dioxideAdditional InformationNo information availableS ECTION VI-A CCIDENTAL R ELEASE M EASURESAccidental Release Measures:Shut off all sources of ignition.Wearing appropriate personal protective equipment, carefully sweep up materialand place in suitable labeled containers for disposal.Use only non-sparking tools.Avoid creating a dusting condition.Personal Precautions: See Section VIII.Environmental Precautions: Avoid releasing to the environment.Additional InformationNo information availableS ECTION VII-H ANDLING AND S TORAGEHandling:Use appropriate personal protection equipment.Avoid eye, skin and clothing contact.Avoid breathing dust.Avoid repeated and prolonged contact.Prevent buildup of static electricity.Keep away from heat, sparks and flame.All equipment should be properly grounded.Avoid creating a dusting situation.Storage: Store in a cool, dry, well-ventilated area away from incompatible materials.Store away from heat, sparks, and flame.Keep container tightly closed.Recommend plastic (polyethylene) packaging.Other Precautions: No information availableAdditional InformationNo information availableS ECTION VIII-E XPOSURE C ONTROLS/P ERSONAL P ROTECTIONEngineering Controls:No information availableVentilation Requirements: Use local exhaust to minimize dusting.Use mechanical ventilation for general area control.Personal Protective Equipment:Eye/Face Protection: Chemical safety glasses with side shields or chemical safety gogglesSkin Protection: Chemical resistant glovesClothing designed to minimize skin contactRespiratory Protection: Wear a NIOSH/MSHA approved dust respirator if dusting occurs, or there ispotential for airborne exposures to exceed established threshold values.Consult the OSHA respiratory protection information located at 29CFR 1910.134and the American National Standard Institute's Practices of RespiratoryProtection Z88.2.Other Protective Clothing orEquipment: No information availableExposure Guidelines: See Section II.S ECTION VIII-E XPOSURE C ONTROLS/P ERSONAL P ROTECTIONWork Hygienic Practices: Wash thoroughly after handling.Wash contaminated clothing before reuse.Additional InformationNo information availableS ECTION IX-P HYSICAL &C HEMICAL P ROPERTIESAppearance:White to light yellowPercent Volatile: Not availablegranules or pelletsBoiling Point: Not available pH Value: 6.8 (Aqueous dispersion at1%)Bulk Density: Not available pH Concentration: Not availableColor: White to light yellow Physical State: SolidDecomposition Temperature: >350 degrees C Reactivity in Water: Not water reactive Evaporation Rate: Not available Saturated VaporConcentration: Not availableFreezing Point: Not available Softening Point: Not availableHeat Value: Not available Solubility in Water: <0.001 g/L at 20 degrees C Melting Point: 100 - 135 degrees C Specific Gravity orDensity (Water=1): 1.01 at 20 degrees C Molecular/Chemical Formula: Polymer Vapor Density: Not availableMolecular Weight: 2000-3300 Vapor Pressure: ~5E-12 mmHg at 25degrees COctanol/Water Partition Coefficient: 2.44 (log Pow) Viscosity: Not availableOdor: None Volatile OrganicCompounds: Not availableOdor Threshold: Not available Water/Oil DistributionCoefficient: Not availableParticle Size: Not available Weight Per Gallon: Not availableAdditional InformationNo information availableS ECTION X-S TABILITY AND R EACTIVITYStability:Stable under normal conditions of handling and use.Conditions to Avoid: High temperatures, heat, open flames, static electricity and other sources ofignitionDecomposes at temperatures >350 degrees C.Incompatibility With Other Materials:Strong oxidizersStrong acidsStrong basesHazardous Decomposition Products:Thermal decomposition may produce the following:Oxides of nitrogenCarbon monoxide and carbon dioxideHazardous Polymerization: Will not occurConditions to Avoid: NoneAdditional InformationNo information availableS ECTION XI-T OXICOLOGICAL I NFORMATIONV ALUE (LD50 OR LC50) A NIMAL R OUTES C OMPONENTS>2,000 mg/kg Rat Acute Oral Lowilite 94>3,000 mg/kg Rat Acute Dermal Lowilite 94Toxicological Information:The toxicological properties of this material have not been fully determined.This material was found to be an eye irritant, but not a skin irritant, in rabbits. In hairless mice, no skin photo-irritant potency was found with a 3% solution. In a guinea pig maximization study, sensitization was not observed; and in a guinea pig photosensitivity test, no skin photo-sensitization was observed with a 0.1% solution.In various 1 to 4 hour inhalation exposures in rats, it was found that respiratory irritation can occur in the range of 0.2 - 0.6 mg/L. Deaths have occurred >2 mg/L.In a teratology study, pregnant rats were dosed by gavage from day 6 to day 15 of pregnancy at 0, 200, 600 and 1,200 mg/kg. Offspring in the high dose group displayed a delay of skeletal maturation. No other significant effects were seen.In a two generation reproduction study, rats were dosed at 400, 2,000 and 4,000 ppm in the diet. No study related effects were noted in the offspring. However, toxic effects at the 2,000 and 4,000 ppm levels observed in parents included immuno-response related effects such as reddened and/or swollen ears, and/or extremities, enlarged lymph nodes, and/or findings in the kidneys, spleen and/or liver. The no observable effect level (NOEL) for effects on the offspring was 4,000 ppm and 400 ppm for parental toxicity.This material was not found to be mutagenic in the Ames test, a nucleus anomaly test or sister chromatid exchange studies on somatic cells.Feeding studies involving rats and dogs at dietary levels up to 10,000 ppm for up to a 6 month period produced liver, mesenteric lymph node, spleen and blood effects.In a 24 month study in rats, no evidence of carcinogenicity was observed at dose levels of 5, 30, and 200 mg/kg.Other acute and chronic health hazards, as well as target organs, are unknown.As with all dusts, inhalation of air concentration levels above the PNOR may cause irritation and adverse lung effects.Additional InformationNo information availableS ECTION XII-E COLOGICAL I NFORMATIONEcological Information:The following ecological information is offered:LC50 in rainbow trout (96H) = 0.35 ppmLC50 in bluegill (96H) = 0.59 ppmEC50 in Daphnia magna (24H) = 55 ppmEC50 in green algae (0 - 72 ) >100 mg/LIC20, 50, 80 on respiration of aerobic waste bacteria >100 mg/LThis product is not biodegradable in the modified Sturm test with 0 - 1% in 28daysAvoid releasing to the environment.Additional InformationNo information availableS ECTION XIII-D ISPOSAL C ONSIDERATIONSDisposal Considerations:Dispose of waste at an approved chemical disposal facility in compliance with allcurrent Local, State/Province, Federal/Canadian laws and regulations.Additional InformationNo information availableS ECTION XIV-T RANSPORT I NFORMATIONU.S. DOTProper Shipping Name:Not regulatedHazard Class: N/A ID Number: N/APacking Group: N/A Labels: N/ASpecial Provisions: N/A Packaging Exceptions: N/ANon-Bulk Packaging: N/A Bulk Packaging:N/APassenger Air/Rail Limit:N/A Air Cargo Limit: N/AVessel Stowage: N/A Other Stowage: N/AReportable Quantity: N/AAIR - ICAO OR IATAProper Shipping Name:Not regulatedHazard Class: N/A ID Number: N/ASubsidiary Risk: N/A Packing Group: N/AHazard Labels: N/A Packing Instructions: N/AAir Passenger Limit Per Package: N/A Packing Instruction -Cargo: N/AAir Cargo Limit Per Package: N/A Special Provisions Code: N/AWATER - IMDGProper Shipping Name: Not regulatedHazard Class: N/A ID Number: N/APacking Group: N/A Subsidiary Risk: N/AMedical First Aid Guide Code: N/AAdditional InformationNo information availableS ECTION XV-R EGULATORY I NFORMATIONU.S. Federal Regulations:The components of this product are either on the TSCA Inventory or exempt (i.e. impurities, a polymer complying with the exemption rule at 40 CFR 723.250) from the Inventory.CAS REG. NO. 70624-18-9 is chemically equivalent to CAS REG. NO. 71878-19-8.State Regulations:None knownInternational Regulations:This material (or each component) is listed on the following inventories:Canada - DSLEU- EINECS (Monomers Listed)Australia - AICSKorea - ECLPhilippines - PICCSChina - List ICAS REG. NO. 70624-18-9 is chemically equivalent to CAS REG. NO. 71878-19-8.Canadian WHMIS Hazard Class and Division = D.2.bS ECTION XV-R EGULATORY I NFORMATIONSARA Hazards:Acute: Yes Chronic: YesReactive: No Fire: NoPressure: NoAdditional InformationThe above regulatory information represents only selected regulations and is not meant to be a complete list.S ECTION XVI-O THER I NFORMATIONNFPA Codes:Health:NR Flammability: NRReactivity: NR Other: NRHMIS Codes: * indicates chronic health hazard.Health:NR Flammability: NRReactivity: NR Protection: NRLabel Statements: Not availableOther Information: Abbreviations:(L) = Loose bulk density in g/mlLOEC = Lowest observed effect concentrationMATC = Maximum acceptable toxicant concentrationNA = Not availableN/A = Not applicableNL = Not limitedNOAEL = No observable adverse effect levelNOEC = No observed effect concentrationNOEL = No observable effect levelNR = Not rated(P) = Packed bulk density in g/mlPNOR = Particulates Not Otherwise RegulatedPNOS = Particulates Not Otherwise SpecifiedREL = Recommended exposure limitTS = Trade secretAdditional InformationInformation on this form is furnished solely for the purpose of compliance with OSHA's Hazard Communication Standard, 29CFR 1910.1200 and the Canadian Hazardous Products Act and associated Controlled Products Regulations and shall not be used for any other purpose.。
光稳定剂
光稳定剂国内光稳定剂产业发展现状1．产能与消费光稳定剂属于耐候性稳定助剂，旨在通过屏蔽、吸收紫外线或猝灭紫外线激发的激发态分子能量、捕获自由基等方式达到抑制光氧化降解，延长制品寿命之目的。
目前市售的品种主要包括二苯甲酮类、苯并三唑类、三嗪类等紫外线吸收剂，镍盐类激发态猝灭剂和受阻胺类光稳定剂等。
光稳定剂多用于户外制品，农用塑料大棚膜是国内最大的光稳定剂消费市场。
从结构来看，受阻胺光稳定剂的产耗量最大，以622、944为代表的聚合型受阻胺光稳定剂品种已经成为农膜用光稳定剂的支柱产品(表12一表15)。
值得注意的是，以苯并三唑类和二苯甲酮类为代表的紫外线吸收剂产能迅速增加，并已走出国门，出口创汇。
表明我国光稳定剂行业的产品结构趋向合理。
2．技术进展与发展趋势在受阻胺品种开发方面，继第一代低分子量品种GW—540、GW—770和第二代聚合型高分子量品种622、944之后，第三代、第四代复合型和反应型品种783、628研发成功，预示着我国受阻胺光稳定剂正在接近国外先进水平。
在紫外线吸收剂领域，苯井三唑类新品种UV-329(UV—5411)、三嗪类高效紫外线吸收剂UV—425(UV-1164)和全新结构的五色高效紫外线吸收剂UV-419、光稳定剂GW-461l以及应用于工程塑料的新型紫外线吸收剂UV-418开始应市，这无疑极大地丰富了国内光稳定剂市场的品种和结构。
展望未来，光稳定剂的市场前景十分诱人，根据国家轻工总会的发展规划，2005年国内仅农膜行业对光稳定剂的需求量就将达到2 000吨以上，加上其他方面需求，2005年、2010年我国光稳定剂需求量将分别超过2 500吨和5 000吨。
结合国内光稳定剂发展现状和世界光稳定剂的发展趋势，确定今后我国光稳定剂行业的发展方向如下：①加强光稳定剂的基础研究，创新开发具有提高产品光、热稳定耐久性、耐水解及耐油性，降低挥发性、毒性，改善与聚合物的相容性的新结构和新品种，②加大受阻胺光稳定剂中间体的国产化力度，尽快实现具有代表性的重要品种的国产化；③强化应用技术的研究，开发具有专用化、功能化的复合型光稳定剂品种。
光稳定剂 622
光稳定剂622
化学名称：丁二酸与(4-羟基-2, 2, 6, 6-四甲基-1-哌啶醇的聚合物)
分子式：C15n+1H25n+4O4n+1N
CAS NO：70198-29-7
结构式：
主要指标：
特性及用途：
本品为聚合型高分子量受阻胺光稳定剂，它是一种齐聚物，具有很好的加工热稳定性和与各种树脂良好的相容性，又由于本品是高分子量化合物，具有很好的耐水抽出性，因此，在加工过程中或使用中，耐水抽出性良好，不易损失。
本品可以有效地防止光、热及气候、水分对高聚物的降解作用。
比一般低分子量受阻胺光稳定剂(HALS)优越很多。
聚合型受阻胺具有更好的耐热性，耐抽出性，更低的挥发性和迁移性。
作为光稳定剂，本品适用于PE、PP、PS、烯烃共聚物、聚酯、软质聚氯乙烯、聚氨酯、聚甲醛和聚酰胺等。
贮运及包装：
光稳定剂622无毒、不易燃、不易爆、不腐蚀、贮存稳定性好，可用于接触食品的塑料。
用纸板桶内衬塑袋包装，净重25kg/桶，也可根据客户要求设计。
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光稳定剂TH-944
产品名称光稳定剂 TH-944; 光稳定剂 944;
聚[[6-[(1,1,3,3-四甲基丁基)胺]-1,3,5-三嗪-2,4-二
基][(2,2,6,6-四甲基-4-哌啶)亚胺]-1,6-二己二基[(2,2,6,6-四甲基-4-哌啶)亚胺]]]
分子式 (C35H68N8)n
物理化学性质
熔点 136-140°C
光稳定剂622
光稳定剂622
化学名称:丁二酸与(4-羟基-2,2,6,6-四甲基-1-哌啶醇的聚合物) 分子式:C15n+1H25n+4O4n+1N
光稳定剂622 分子式
CAS NO. 70198-29-7
特性及用途:
本品为聚合型高分子量受阻胺光稳定剂, 它是一种齐聚物, 具有很好的加工热稳定性和与各种树脂良好的相容性, 又由于本品是高分子量化合物, 具有很好的耐水抽出性, 因此, 在加工过程中或使用中, 耐水抽出性
良好, 不易损失。
本品可以有效地防止光、热及气候、水分对高聚物的降解作用。
比一般低分子量受阻胺光稳定剂(HALS)优越
光稳定剂622
很多。
聚合型受阻胺具有更好的耐热性, 耐抽出性, 更低的挥发性和迁移性。
作为光稳定剂, 本品适用于聚乙烯、聚丙烯、聚苯乙烯、烯烃共聚物、聚酯、软质聚氯乙烯、聚氨酯、聚甲醛和聚酰胺等。
主要指标:
外观白色或淡黄色颗粒状固体
光稳定剂622
软化温度 55-80°C
相对密度 1.18(20°C)
热失重 1%为275°C, 10%为325°C
溶解度(20°C) 己烷 <0.01, 甲苯 15, 丙酮 4, 醋酸乙酯 3, 氯
仿 >40, 氯甲烷 >40,
(g/100g溶剂) 甲醇0.05, 水 <0.01。