第2期Preparationandpropertiesofmulticomponenthalogen-freeflameretardantnaturalrubberbasedonphosphoxanthrenederivativesWANGJian1,WANGLong1,ZHANGZheng1,JIAYu-hui2,SHENRui-bing2,HAOMing-zheng2,LIANGYu-rong1,2（1.SchoolofMaterialsScienceandEngineering,NorthUniversityofChina,Taiyuan030051,China;2.DepartmentofMaterialsEngineering,TaiyuanInstituteofTechnology,Taiyuan030008,China）Abstract:Theflameretardantnaturalrubber（NR）vulcanizateswerepreparedbyaddingphos-phoxanthrene/triazinebibasesynergicflameretar-dant（TGD）,dimethylmethylphosphonate（DMMP）,expandablegraphite（EG）andaluminumhydroxide（ATH）toNR.TheeffectsofTGD/DMMP/EG/ATHcompoundflameretardantsontheflameretardancy,thermalstabilityandphysicalandmechanicalpro-pertiesofNRvulcanizatewereinvestigated.There-sultsshowedthatTGD/DMMP/EG/ATHcompoundflameretardantcouldeffectivelyimprovetheflameretardancyandthermalstabilityofNRvulcanizates,andreducetheheatreleaserateduringcombustion.WhentheamountofTGD/DMMP/EG/ATHcom-poundflameretardantwas60phr（mass）,thelimit-ingoxygenindexofNRvulcanizatescouldreach28.4%,themassfractionofcarbonresiduecouldreach25.61%,theheatreleaserateandtotalheatreleaseamountofNRvulcanizatescouldbereducedby95%and21%.TGD/DMMP/EG/ATHcompoundflameretardanthadlittleeffectonthephysicalandmechanicalpropertiesofNRvulcanizates.Keywords:naturalrubber;phosphozapine/triazinediphenylsynergisticflameretardant;compoundflameretardant;flameretardantperformance;thermalstability;physicalandmechanicalproperty国外动态··2022年日本合成橡胶产品总产量下降据日本合成橡胶制造商协会近日公布的统计数据显示，2022年日本合成橡胶产品总产量为1378kt，比上一年下降6.9%。其中，按产品品种统计，以轮胎为主的通用丁苯橡胶（SBR）产量为444.54kt，同比下降14.2%；通用顺丁橡胶（BR）产量为306kt，同比增加0.4%。SBR产品中，固体SBR为340kt，同比下降16.4%；非油SBR为200kt，同比下降11.0%；耐油SBR为140kt，同比下降23.1%；胶乳SBR为105kt，同比下降16.0%。此外，2022年12月，日本合成橡胶产品总量为121kt，同比下降12.7%。其中，固体SBR为31kt，同比下降15.7%；非油SBR为20kt，同比下降17.1%；耐油SBR为11kt，同比下降83.2%；胶乳SBR为8kt，同比下降15.7%。其他橡胶方面，丁腈橡胶产品总量为8kt，同比下降21.7%；氯丁橡胶为12kt，同比增长9.8%；BR为24kt，同比下降22.3%；塑胶橡胶为18kt，同比下降4.0%。王健等.基于磷杂菲衍生物多组分无卤阻燃天然橡胶的制备及性能93··
