羧甲基纤维素钠为稳定剂的无皂Pickering丙烯酸酯乳液表面施胶剂的合成
|
摘要
本文研究了以甲基丙烯酸甲酯、丙烯酸丁酯为软硬单体、丙烯酸为功能单体,羧甲基纤维素钠CMC-Na为稳定剂,采用无皂乳液聚合的方法,制备Pickering丙烯酸酯乳液。首先考察了不同配比的CMC-Na对丙烯酸酯乳液性能的影响,然后测定了羧甲基纤维素钠的接触角,并对合成的乳液进行了红外表征,最终得到羧甲基纤维素钠的接触角为36.59°,并且在羧甲基纤维素钠的配比为3%时,乳液的固含量为24.12%,转化率为96.49%,粒径为152nm,施胶度为37s,此时制得的丙烯酸酯乳液的稳定性和抗水性最佳。
This paper mainly studied the soap free emulsion polymerization of methyl methacrylate as hard monomer,butyl acrylate as soft monomer,acrylic acid as functional monomer,sodium carboxymethyl cellulose( CMC- Na) as protective colloid,Pickering emulsion were prepared. The contact angle of sodium carboxymethyl cellulose was determined,and the effects of different concentrations of CMC- Na on the properties of acrylate emulsion were examined. The emulsion was also characterized. The contact angle of sodium carboxymethyl cellulose was 36. 59°. When the ratio of carboxymethyl cellulose was 3%,the solid content of emulsion was 24. 12%,the conversion rate was 96. 49%,the particle size was 152 nm,and the sizing degree was 37 s. At that time,the stability and water resistance of acrylate emulsion were the best.
This paper mainly studied the soap free emulsion polymerization of methyl methacrylate as hard monomer,butyl acrylate as soft monomer,acrylic acid as functional monomer,sodium carboxymethyl cellulose( CMC- Na) as protective colloid,Pickering emulsion were prepared. The contact angle of sodium carboxymethyl cellulose was determined,and the effects of different concentrations of CMC- Na on the properties of acrylate emulsion were examined. The emulsion was also characterized. The contact angle of sodium carboxymethyl cellulose was 36. 59°. When the ratio of carboxymethyl cellulose was 3%,the solid content of emulsion was 24. 12%,the conversion rate was 96. 49%,the particle size was 152 nm,and the sizing degree was 37 s. At that time,the stability and water resistance of acrylate emulsion were the best.
引文
[1]Nasser N,Nader T Q,Yulin D.Surfactant free pickering emulsion polymerization of styrene in w/o/w system using cellulose Nanofibrils[J].European Polymer Journal 2015,64:179-188.
[2]Ramsden W,Proc R.Separation of solids in the surface-layers of solutions and suspensions(observations on surface-membranes,bubbles,emulsions,and mechanical coagulation)[J].Soc.London:Series A,1903,72:156-164.
[3]Pickering S U.Emulsions[J].J.Am.Chem.Soc.,1907,91:2001-2021.
[4]Tambe D E,Sharma M M.Factors controlling the stability of colloid-stabilized emulsions:II.A model for the rheological properties of colloid-laden interfaces[J].Colloid Interface Science 1994;162:1.
[5]Tambe D E,Sharma M M.Factors controlling the stability of colloid-stabilized emulsions:III.measurement of the rheological properties of colloid-laden interfaces[J].Colloid Interface Science 1995;171:456.
[6]Abendd S,Bonnke N,Gutschner U,Lagaly G.Stabilization of emulsions by heterocoagulation of clay minerals and layered double hydroxides[J].Colloid Polymer Science 1998;276:730.
[7]Horozov T S,Binks B P.Particle-stabilized emulsions:A bilayer or a bridging monolayer[J].Angewandte Chemie Internation Edition 2006;45:773.
[8]Frinkle P,Draper H D,Hildebrand J H.The theory of emulsification[J].American Chemical Society,1923,45(12):2780-2788.
[9]Binks B P,Lumsdon S O.Pickering emulsions stabilized by mnodisperse latex particles:effects of particle size[J].Langmuir2001,17(15):4540-4547.
[10]Tsugita A,Takemoto S,Mori K,Yoneya T,Otani Y.Studies on O/W emulsions stabilized with insoluble montmorillonite-organic complexes[J].Colloid Interface Science.1983,95,551-560.
[11]Cui Z G,Shi K Z,Cui Y Z,Binks B P.Double phase inversion of emulsions stabilized by a mixture of Ca CO3nanoparticles and sodium dodecyl sulphate[J].Colloids and Surfaces A 2008,329,67-74.
[12]Gautier F,Destribats M.,Perrier-Conet R,et al.Pickering emulsion with stimulable particles:from highly to weakly covered interfaces[J].Chem.Phys.2007,9,6455-6462.
[13]Irina K,Herve B,Bernard C,Isabelle C.New pickering emulsions stabilized by bacterial cellulose nanocrystals[J].Langmuir 2011,27,7471-7479
[14]Ghanbaezadfh B,Almasi,J.Biol.[J].Macromol.2011,48:44-49.
[15]周建钟,吴潇,李泳铮,等.纤维素-丙烯酸酯胶黏剂制备工艺[J].林业科技开发,2014,28(5):117-120.
[16]丁鹏翔,刘温霞.正丁胺改性锂皂石制备ASA Pickering乳液及其施胶性能的研究[J].中国造纸,2011,30(10):1-6.
[17]GB/T 5405-2002,液体渗透法测定乳液的施胶度[S].
[18]Binks B P,Lumsdon S O.Influence of particle wettability on the type and stability of surfactant-free emulsions[J].Langmuir2000,16(23):8622-8631.
[19]Binks B P.Particles as surfactants-similarities and differences[J].current opinion colloid interface science 2002,7:21-41.
[20]Andresen M,Stenius P.J Dispersion Sci Technol 2007;28:837.
[21]成世杰.淀粉接枝涂布纸胶乳的合成及表征[D].山东:青岛科技大学,2014.
[22]Rayner M.,SjM.,Timgren A.,et al.Quinoa starch granules as stabilizing particles for production of pickering emulsions[J].Faraday discussions,2012,158:139-155.
[23]Binks B P,Rodrigues J A.Inversion of emulsions stabilized solely by ionizable nanoparticles[J].Angew.Chem.Int.Ed.,2005,44:441-444.
[24]Pieranski P.Two-dimensional interfacial colloidal crystals[J].Phys.Rev.Lett.,1980,45:569-572.
[2]Ramsden W,Proc R.Separation of solids in the surface-layers of solutions and suspensions(observations on surface-membranes,bubbles,emulsions,and mechanical coagulation)[J].Soc.London:Series A,1903,72:156-164.
[3]Pickering S U.Emulsions[J].J.Am.Chem.Soc.,1907,91:2001-2021.
[4]Tambe D E,Sharma M M.Factors controlling the stability of colloid-stabilized emulsions:II.A model for the rheological properties of colloid-laden interfaces[J].Colloid Interface Science 1994;162:1.
[5]Tambe D E,Sharma M M.Factors controlling the stability of colloid-stabilized emulsions:III.measurement of the rheological properties of colloid-laden interfaces[J].Colloid Interface Science 1995;171:456.
[6]Abendd S,Bonnke N,Gutschner U,Lagaly G.Stabilization of emulsions by heterocoagulation of clay minerals and layered double hydroxides[J].Colloid Polymer Science 1998;276:730.
[7]Horozov T S,Binks B P.Particle-stabilized emulsions:A bilayer or a bridging monolayer[J].Angewandte Chemie Internation Edition 2006;45:773.
[8]Frinkle P,Draper H D,Hildebrand J H.The theory of emulsification[J].American Chemical Society,1923,45(12):2780-2788.
[9]Binks B P,Lumsdon S O.Pickering emulsions stabilized by mnodisperse latex particles:effects of particle size[J].Langmuir2001,17(15):4540-4547.
[10]Tsugita A,Takemoto S,Mori K,Yoneya T,Otani Y.Studies on O/W emulsions stabilized with insoluble montmorillonite-organic complexes[J].Colloid Interface Science.1983,95,551-560.
[11]Cui Z G,Shi K Z,Cui Y Z,Binks B P.Double phase inversion of emulsions stabilized by a mixture of Ca CO3nanoparticles and sodium dodecyl sulphate[J].Colloids and Surfaces A 2008,329,67-74.
[12]Gautier F,Destribats M.,Perrier-Conet R,et al.Pickering emulsion with stimulable particles:from highly to weakly covered interfaces[J].Chem.Phys.2007,9,6455-6462.
[13]Irina K,Herve B,Bernard C,Isabelle C.New pickering emulsions stabilized by bacterial cellulose nanocrystals[J].Langmuir 2011,27,7471-7479
[14]Ghanbaezadfh B,Almasi,J.Biol.[J].Macromol.2011,48:44-49.
[15]周建钟,吴潇,李泳铮,等.纤维素-丙烯酸酯胶黏剂制备工艺[J].林业科技开发,2014,28(5):117-120.
[16]丁鹏翔,刘温霞.正丁胺改性锂皂石制备ASA Pickering乳液及其施胶性能的研究[J].中国造纸,2011,30(10):1-6.
[17]GB/T 5405-2002,液体渗透法测定乳液的施胶度[S].
[18]Binks B P,Lumsdon S O.Influence of particle wettability on the type and stability of surfactant-free emulsions[J].Langmuir2000,16(23):8622-8631.
[19]Binks B P.Particles as surfactants-similarities and differences[J].current opinion colloid interface science 2002,7:21-41.
[20]Andresen M,Stenius P.J Dispersion Sci Technol 2007;28:837.
[21]成世杰.淀粉接枝涂布纸胶乳的合成及表征[D].山东:青岛科技大学,2014.
[22]Rayner M.,SjM.,Timgren A.,et al.Quinoa starch granules as stabilizing particles for production of pickering emulsions[J].Faraday discussions,2012,158:139-155.
[23]Binks B P,Rodrigues J A.Inversion of emulsions stabilized solely by ionizable nanoparticles[J].Angew.Chem.Int.Ed.,2005,44:441-444.
[24]Pieranski P.Two-dimensional interfacial colloidal crystals[J].Phys.Rev.Lett.,1980,45:569-572.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |