基于环烷烃的皮革加脂剂的制备及应用性能研究  

Preparation of Cycloalkane based Fatliquor and its Application Properties Investigation

作　　者：宁国强[1,2] 周继博 廖学品 石碧[1,2] NING Guoqiang;ZHOU Jibo;LIAO Xuepin;SHI Bi(Key Laboratory of Leather Chemistry and Engineer of Ministry of Education,Sichuan University,Chengdu 610065,China;National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China)

机构地区：[1]四川大学皮革化学与工程教育部重点实验室,四川成都610065 [2]四川大学制革清洁技术国家工程实验室,四川成都610065

出　　处：《皮革科学与工程》2022年第2期72-78,共7页Leather Science and Engineering

基　　金：国家重点研发计划(2017YFB0308500)。

摘　　要：以环烷烃为油脂成分,分别利用非离子表面活性剂(司班-80,吐温-80)和阴离子表面活性剂(石油磺酸钠)将其乳化,制备了加脂剂STB和TB。通过静置稳定性、离心稳定性、水乳液稳定性和粒径的测定,分别确定了非离子和阴离子表面活性剂的最佳乳化条件。对于非离子表面活性剂,采用剂在油中法,S/O/W=10∶30∶60(水包油乳液,S:表面活性剂;O:环烷烃;W:水,均为质量比),HLB值为11.5,乳化时间为1 h;对于阴离子表面活性剂,采用剂在水中法,S/O/W=12∶28∶60(水包油乳液),乳化时间为1 h。将制备的环烷烃乳液应用于蓝湿革加脂,并与液体石蜡乳液作对比。结果表明:使用环烷烃乳液STB、TB加脂后,坯革丰满性较好,纤维分散程度较高,成革中的二氯甲烷萃取物含量分别为7.36%、6.28%,挥发性有机物含量为49.82μg C/g、66.07μg C/g,均明显低于液体石蜡。Cycloalkane was used as an oil component,nonionic surfactants(Span-80,Tween-80)and anionic surfactants(sodium petroleum sulfonate)were used respectively as emulsify components to prepare fatliquors STB and TB.The optimal emulsification conditions for different surfactants were determined by the static stability,centrifugal stability,emulsion stability and particle size analysis.The results show that the optimal conditions for non-ionic surfactant emulsion were S/O/W=10∶30∶60(Oil-in-water emulsion,S:Surfactant,O:Cycloalkane,W:Water,mass ratios),the HLB value was 11.5,and the emulsification time was 1 h,where surfactant in oil method was used.Meanwhile,for anionic surfactant emulsion,the mass ratio of S/O/W(Oil-in-water emulsion)was 12∶28∶60,and the emulsification time was 1 h using surfactant in water method.The prepared naphthenic emulsions were used in the fatliquoring process of wet blue leather,and emulsified liquid paraffin was conducted as comparison.The results show that the leather fatliquored by STB and TB showed good fullness,and their fiber dispersion were significantly better than that of emulsified liquid paraffin.Moreover,the content of dichloromethane extract of STB and TB fatliquored leather were 7.36%and 6.28%,and their content of volatile organic compounds were determined to be 49.82μgC/g and 66.07μgC/g,respectively,both lower than that of emulsified liquid paraffin.

关 键 词：环烷烃 乳化 加脂剂 二氯甲烷萃取物含量 VOCS 

分 类 号：TS529.4[轻工技术与工程—皮革化学与工程]