|
|
Preparation and Properties of Starch-Kaolin/P(AA-AM) Super Absorbent Resin |
|
|
Abstract: The superabsorbent is one of the fastest developing functional polymers. The USA, Europe and Japan are the main producers and consumers. China's research in this field started later, but with a good progress. Compared with the mainstream product preparation from acrylic acid, that by using starch as raw material has many advantages, for starch is abundant, cheap and biodegradable. This paper studies its preparation process, morphology and structural characterization. The influencing factors on absorbency include the components of kaolin, the type and amount of initiator, the type and amount of crosslink, amount of acrylamide, neutralization degree, and drying conditions. With acrylic acid, acrylamide, kaolin, starch and others as raw materials, super-absorbent composites were prepared by using a method of water solution cross-linked polymerization The aqueous solution polymerization method is discussed, focusing on the properties of super absorbent resin, which are affected by the amount of crosslinking agent, initiator, kaolin, acrylamide and drying condition, and so on. Water absorption rate can reach 1415g/g, and salt absorption rate can reach 95g/g. The copolymers were characterized by the IR spectroscopy and Scanning Electronic Microscopy (SEM). A good thermal stability is shown, and the components of comonomers influence the resin's decomposition temperature and the surface morphological characterization notably.
|
Received: 19 November 2009
|
|
|
|
[1] |
YANG Zefeng, XU Shuhui, WANG Yifan, ZHANG Enying, XU Chenwu. Molecluar Evolution and Expression Patterns Under Abiotic Stresses of Beta-amylase Gene Family in Grasses[J]. Science & Technology Review, 2014, 32(31): 29-36. |
[2] |
WU Jianning;MENG Guihua;LIU Zhiyong;MA Cunhua;ZHANG Ling. Synthesis of Super Absorbent Resin of Starch-acrylic Acid by Microwave Radiation[J]. , 2012, 30(13): 39-43. |
[3] |
LIN Jian;ZHENG Xiaoguang;ZHANG Ming. Synthesis of Water-absorbent Resin from Calcium Lignosulfonate[J]. , 2011, 29(24): 33-36. |
[4] |
MA Xianfa;ZHANG Jizhou;SONG Fengbin. Research Advances in Physiological Ecology Adaptation of Plant Salt-tolerance[J]. , 2011, 29(14): 76-79. |
[5] |
LIU Dengfeng;FU Ying. Determination of Molecular Weight and K, α Values for Polymers of Glycidyl Methacrylate[J]. , 2011, 29(13): 62-65. |
[6] |
. Salt Tolerance in Seedling Period of Medicinal Halophyte Lycium ruthenicum[J]. , 2011, 29(11-10): 29-33. |
|
|
|
|