水溶性聚合物胶液中自由水含量的测定
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摘要
根据束缚水不能成为溶剂的特性,提出利用折光率法测定水溶性聚合物胶液中的自由水含量,并利用该方法测定了不同种类聚合物胶液中的自由水含量,考察了NaCl对聚合物胶液中自由水含量的影响。实验结果表明,蔗糖溶液的含量与折光率呈较好的线性关系,水溶性聚合物的种类和含量对溶液的折光率无影响,利用折光率法测定聚合物胶液中的自由水含量是可行的;不同种类水溶性聚合物束缚水的能力不同,随着水溶性聚合物浓度的增加,自由水含量降低、束缚水含量提高;NaCl能明显降低水溶性聚合物束缚自由水的能力。折光率法能准确、快速测定水溶性聚合物胶液中的自由水含量。
According to the characteristic that the bound water can't be a solvent,the refractive index method was used to determine the free water content in the water-soluble polymer glue solution,and the content of free water in different kinds of polymer glue solution and the effect of NaCl on the content of free water in polymer glue solution were determined by this method. The results showed that the concentration of sucrose solution had a good linear relationship with the refractive index. The type and concentration of water-soluble polymer had no effect on the refractive index of the solution. It was feasible to determine the free water content in the polymer glue solution by refractive index method. As the concentration of water-soluble polymers increased,the free water content decreased,and the bound water content increased. NaCl could significantly reduce the ability of water-soluble polymers to bind free water. The free water content of the soluble polymer glue solution could be accurately and quickly determined by the refractive index method.
According to the characteristic that the bound water can't be a solvent,the refractive index method was used to determine the free water content in the water-soluble polymer glue solution,and the content of free water in different kinds of polymer glue solution and the effect of NaCl on the content of free water in polymer glue solution were determined by this method. The results showed that the concentration of sucrose solution had a good linear relationship with the refractive index. The type and concentration of water-soluble polymer had no effect on the refractive index of the solution. It was feasible to determine the free water content in the polymer glue solution by refractive index method. As the concentration of water-soluble polymers increased,the free water content decreased,and the bound water content increased. NaCl could significantly reduce the ability of water-soluble polymers to bind free water. The free water content of the soluble polymer glue solution could be accurately and quickly determined by the refractive index method.
引文
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[3]朱宽亮,卢淑芹,王荐,等.低自由水钻井液体系的研究与应用[J].石油钻采工艺,2010,32(1):34-39.
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[5]张海山,蔡斌,王荐,等.低自由水钻井液在东海地区的研究与应用[J].石油天然气学报,2013,35(10):138-140.
[6]张海山.东海地区低孔低渗储层低自由水钻井液体系研究与应用[J].中国海上油气,2013,25(2):71-73.
[7]陈金霞,阚艳娜,陈春来,等.反渗透型低自由水钻井液体系[J].钻井液与完井液,2015,32(1):14-17.
[8]赵亚宁,陈春来,秦博,等.改进型低自由水钻井液在NP4-55井的应用[J].钻井液与完井液,2012,29(5):30-32,36.
[9]张海山,罗勇,张荣,等.抗高温平衡水钻井液体系性能研究[J].化学与生物工程,2013,30(10):64-67.
[10]邢韦亮,王荐,赵亚宁,等.堡古2区块中深层抗高温低自由水钻井液体系性能研究[J].化学与生物工程,2014,31(8):67-70.
[11]柳海,李纲要,吴丙刚,等.束缚水修井液的研究与应用[J].新疆石油天然气,2008,4(s):85-89.
[12]鄢捷年.钻井液工艺学[M].东营:中国石油大学出版社,2001:40-43.
[13]Darlay H C H,Gray G R. Composition and Properties of Drilling and Completion Fluids[M]. Texas:Gulf Publishing Company,1988:156-159.
[14]余叔文,宋廷生,龚燦霞.从杜曼斯基的束缚水测定法谈水在植物体内的状态[J].植物生理学报,1960(2):30-36.
[15]刘向莉,高丽红,刘明池.植物组织中自由水和束缚水含量测定方法的改进[J].中国蔬菜,2005,1(4):9-11.
[16]张延滨,秦洪波,魏巍.用阿贝折射仪测定糖浓度[J].黑龙江医药,1996,9(1):31-32.