Unlock instant, AI-driven research and patent intelligence for your innovation.

Polyacrylamide and its preparation method and application

A polyacrylamide and polymerization reaction technology, applied in the field of polyacrylamide and its preparation, can solve the problems of easy explosion, high energy consumption, harsh reaction conditions, etc. Effect

Inactive Publication Date: 2016-01-20
SHAOXING UNIVERSITY
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In view of the above existing problems, the present invention provides a polyacrylamide and its preparation method and application, to overcome the problems of harsh reaction conditions, high energy consumption and prone to implosion phenomenon in the preparation method in the prior art, thereby simplifying the preparation The process conditions of polyacrylamide, and avoid the occurrence of detonation phenomenon, but also save the energy required for the preparation

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polyacrylamide and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] figure 1 It is a schematic flow diagram of the preparation method of polyacrylamide provided by Example 1 of the present invention; as figure 1 As shown in the flow chart, the preparation method of polyacrylamide provided by Example 1 of the present invention includes: placing a certain amount of polyvinylpyrrolidone in a beaker, and then adding distilled water to dissolve to obtain a polyvinylpyrrolidone solution; adding a certain amount of NiSO 4 ·7H 2 O is placed in a beaker, and then distilled water is added to dissolve to obtain a nickel sulfate solution; a certain amount of sodium borohydride is placed in a beaker, and then distilled water is added to dissolve to obtain a sodium borohydride solution;

[0033] After fully mixing the polyvinylpyrrolidone solution and the nickel sulfate solution, slowly add the sodium borohydride solution under stirring conditions, the reaction is complete, and the nickel-boron colloidal solution can be obtained;

[0034] Provide a...

Embodiment 2

[0038] Weigh 2.5g of polyvinylpyrrolidone (PVP) and place it in a beaker, add 20mL of distilled water to dissolve it, and prepare a polyvinylpyrrolidone solution; weigh 0.59g of NiSO 4 ·7H 2O is placed in a beaker, and then 20mL of distilled water is added to dissolve to prepare a nickel sulfate solution; 0.172g of sodium borohydride is weighed and placed in a beaker, and then 20mL of distilled water is added to dissolve to prepare a sodium borohydride solution; the polyvinylpyrrolidone solution Fully mix with nickel sulfate solution, then slowly add sodium borohydride solution while stirring, after the reaction is complete, nickel-boron colloidal solution can be obtained; meanwhile, take 7.82g of acrylamide and 0.15g of potassium persulfate, and Dissolve acrylamide and potassium persulfate in 20mL of water to obtain a monomer solution; add nickel-boron colloid solution to the monomer solution, add 80mL of water, and carry out polymerization reaction under the condition of a c...

Embodiment 3

[0041] Weigh 2.5g of polyvinylpyrrolidone (PVP) and place it in a beaker, add 20mL of distilled water to dissolve it, and prepare a polyvinylpyrrolidone solution; weigh 0.59g of NiSO 4 ·7H 2 O is placed in a beaker, and then 20mL of distilled water is added to dissolve to prepare a nickel sulfate solution; 0.0172g of sodium borohydride is weighed and placed in a beaker, and then 20mL of distilled water is added to dissolve to prepare a sodium borohydride solution; the polyvinylpyrrolidone solution Fully mix with nickel sulfate solution, then slowly add sodium borohydride solution while stirring, after the reaction is complete, nickel-boron colloidal solution can be obtained; meanwhile, take 7.82g of acrylamide and 0.15g of potassium persulfate, and Dissolve acrylamide and potassium persulfate in 20mL of water to obtain a monomer solution; add nickel-boron colloid solution to the monomer solution, add 80mL of water, and carry out polymerization reaction under the condition of a...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
molecular weight distributionaaaaaaaaaa
Login to View More

Abstract

The invention discloses polyacrylamide as well as a preparation method and application thereof, belonging to the technical field of high polymer compounds and preparation methods and application thereof. In the preparation method, nickel sulfate-sodium borohydride is taken as an oxidation reduction system, Ni<2+> is reduced into a Ni(0)-B colloidal solution under the protection of polyvinylpyrrolidone, and potassium peroxodisulfate is added as an initiator for initiating the polymerization of acrylamide (AM) to prepare the polyacrylamide. The method is carried out at the normal temperature without heating to a high temperature, so that the energy consumption is lowered. Moreover, nitrogen is not introduced for deoxygenizing, so that the phenomenon of implosion is avoided, the preparation process condition of polyacrylamide is simplified, and energy needed in preparation is saved. Meanwhile, the molecular weight of the polyacrylamide prepared by using the method can be controlled between 350,000 and 1,600,000, the polydispersity index D of the molecular weight is more than or equal to 1.20 and less than or equal to 1.62, and the polyacrylamide can be suitable for different applications.

Description

technical field [0001] The invention relates to a polymer compound and its preparation method and application, in particular to a polyacrylamide and its preparation method and application. Background technique [0002] Polyacrylamide (PAM for short) is a water-soluble linear polymer polymerized by free radicals from acrylamide (AM) monomers. It is insoluble in most organic solvents and has good flocculation properties, which can reduce liquid It is one of the most widely used varieties of water-soluble polymers. Since the structural unit of polyacrylamide contains amide groups, it is easy to form hydrogen bonds, making it have good water solubility and high chemical activity, and it is easy to obtain various modified products with branched chain or network structure through grafting and crosslinking. , It is widely used in petroleum exploration, water treatment, textile, papermaking, mineral processing, medicine, agriculture and other industries. [0003] Among them, in th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C08F120/56C08F4/40
Inventor 董坚孙力何宁德胡六江鹿萍
Owner SHAOXING UNIVERSITY