資源描述:
《PVC用二聚脂肪酸鈣鋅復合熱穩(wěn)定劑體系的配方優(yōu)化.pdf》由會員上傳分享,免費在線閱讀,更多相關(guān)內(nèi)容在行業(yè)資料-天天文庫。
1、·o2掌i。期ENG工INEER程INGP塑LAST料ICSA應(yīng)PPLIC用ATIONVo1.4O3c.tNo.10.2015doi:lO.3969~.issn.1001-3539.2015.10.021PVC用二聚脂肪酸鈣/鋅復合熱穩(wěn)定劑體系的配方優(yōu)化李梅,毛偉,汪梅,李守海。黃坤-一。夏建陵1,2(1.中國林業(yè)科學研究院林業(yè)新技術(shù)研究所,北京100091;2.中國林業(yè)科學研究院林產(chǎn)化學工業(yè)研究所,生物質(zhì)化學利用國家工程實驗室,國家林業(yè)局林產(chǎn)化學工程重點開放性實驗室,生物質(zhì)能源與材料重點實驗室,南京210042)摘要
2、:以二聚脂肪酸為原料,l,4-二氧六環(huán)為溶劑,分別與氫氧化鈣、氧化鋅反應(yīng),制備了二聚脂肪酸鈣/鋅鹽(DFA—Ca/DFA·Zn),并采用傅里葉變換紅外光譜和電感耦合等離子體發(fā)射光譜對其進行了結(jié)構(gòu)表征。發(fā)現(xiàn)合成產(chǎn)物為目標產(chǎn)物。以DFA-Ca/DFA—Zn為聚氯乙烯(PVC)/對苯二甲酸二辛酯~DOTP)體系的主熱穩(wěn)定劑,依次向PVC/DOTP體系加入輔助熱穩(wěn)定劑環(huán)氧大豆油(Eso)、山梨醇和二酮,通過變色法和剛果紅法考察了這3種輔助熱穩(wěn)定劑對上述PVC體系初期著色性及長期熱穩(wěn)定性的影響,在此基礎(chǔ)上篩選出最佳的DFA.Ca
3、/DFA—zn復合熱穩(wěn)定劑體系的配方,即DFA·Ca/DFA-Zn/ESO/山梨醇/二酮的最佳質(zhì)量比為1.O8/0-27/1/0.5/0-3,在45gPVC/22.5gDOTP體系中加入上述配方條件下的復合熱穩(wěn)定劑體系3.15g時,可使該PVC體系在185'C的靜態(tài)熱穩(wěn)定時間達195.4min。關(guān)鍵詞:聚氯乙烯;二聚脂肪酸;鈣鋅復合熱穩(wěn)定劑;輔助熱穩(wěn)定劑中圖分類號:TQ320.4文獻標識碼:A文章編號:1001.3539(2015)10.0102.05FormulationOptimizationOHCalcium/Z
4、incofDimerFattyAcidCompositeThermalStabilizerSystemforPVCLiMei,MaoWei2WangMei2LiShouhaiL2,,,HuangKun2描aJianling(1.InstituteofForestNewTechnology,ChineseAcademyofForestry,BeOing100091,China;2.InstituteofChemicalIndustryofForestryProducts,CAF;NationalEngineeringLa
5、b.forBiomassChemicalUtilization;KeyandLab.onForestChemicalEngineering,SFA;KeyLab.ofBiomassEnergyandMaterial,Nanjing210042,China)Abstract:Usingdimerfattyacid(DFA)asrawmaterialand1,4-dioxaneassolvent,calciumsaltofdimmerfattyacid(DFA—Ca)andzincsaltofdimerfattyacid(
6、DFA—Zn)weresynthesizedthroughDFAreactingwithcalciumhydroxideandzincoxiderespectively.Thenthestructuresofthemwereconfirmedbyinductivelycoupledplasma-atomicemissionspectrometryandFouriertransforminfraredspectroscopy,andthecompoundsobtainedwerefinalobjectiveproduct
7、s.TakingDFA-Ca/DFA-Znasmainthermalstabilizerofpoly(vinylchloride)(PVC)/diocty1terephthalate(DOTP)system,theauxiliaryheatstabilizersincludingepoxidizedsoybeanoil(ESO),D—sorbitolandfl—diketonewereaddedintothesysteminsequence,thentheefectsoftheseauxiliaryheatstabil
8、izersontheinitialdyeingpropertyandlong-termthermalstabilityofthePVCsystemwerestudiedusingdiscolorationtestandCongoRedtest.Onthisbasis,theoptimumformulafortheDFA—Ca/DF