Method for measuring solid content of hydroxamic acid type polyacrylamide

A polyacrylamide and determination method technology, applied in the direction of weighing by removing certain components, can solve the problems of low product molecular weight, limited molecular chain growth, narrow molecular weight distribution, etc., to achieve simple measurement steps, reduce measurement costs, The effect of high measurement accuracy

Inactive Publication Date: 2012-05-23
袁俊海
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Problems solved by technology

Because the organic solvent used in the precipitation polymerization process is a very active chain transfer agent for the polymerization of acrylamide, and most organic solvents are precipitation agents for polyacrylamide. When the molecular chain of the polymer grows to a certain length, it will It will precipitate and limit the further growth of the molecular chain, so the molecular weight of the obtained product is low and the molecular weight distribution is narrow

Method used

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Experimental program
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Embodiment

[0029] A kind of solid content determination method of hydroxamic acid type polyacrylamide that the present invention relates to, comprises the following steps:

[0030] (a) take M gram polymer sample in weighing bottle;

[0031] (b) drying under certain temperature conditions;

[0032] (c) Take out the weighing bottle, cool to room temperature, and weigh m;

[0033] (d) Calculate the solid content S of hydroxamic acid polyacrylamide according to M and m.

[0034] In the step (a), the weighing bottle has been subjected to constant weight in advance.

[0035] In the step (a), the weight of the polymer sample is accurate to 0.0001g.

[0036] In the step (b), the temperature condition is 105±2°C.

[0037] In the step (b), dry in a vacuum oven.

[0038] In the step (c), place in a desiccator for cooling.

[0039] In the above step (d), the formula for calculating the solid content of hydroxamic acid polyacrylamide according to M and m is: S=m / M×100%.

[0040] The method for d...

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Abstract

The invention discloses a method for measuring the solid content of hydroxamic acid type polyacrylamide. The method comprises the steps of: weighing Mg of a polymer test sample; drying under the condition of a certain temperature; taking out a weighing bottle and cooling to room temperature, wherein the weight is weighed to be m; calculating the solid content S according to M and m; and the like. The method disclosed by the invention can be used for rapidly measuring the solid content of the hydroxamic acid type polyacrylamide, has high measurement precision and simple measurement steps, is beneficial to reduction of the measurement cost and provides good data support for use of the hydroxamic acid type polyacrylamide.

Description

technical field [0001] The invention relates to a method for measuring the solid content of hydroxamic acid type polyacrylamide. Background technique [0002] Facing the current situation of my country's environmental protection and the pressure brought by the international green fortress, it is very urgent to develop and research oilfield environmental protection technology in my country and solve the major environmental protection problems that plague my country's social and economic development. [0003] In the process of oil and gas exploration and development, oil and gas companies have adopted a large number of measures such as drilling and other oil and gas wells to put into production and increase production, resulting in a large amount of drilling sewage. During drilling, each well produces 400-500m of drilling sewage 3 , waste drilling fluid 500~700m 3 . At present, solving the pollution problem of sewage has become one of the important research topics of environ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/04
Inventor 袁俊海
Owner 袁俊海
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