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

A kind of cationic rigid sheet reinforcing agent and its preparation method and application, preparation method of polyacrylic acid gel

A polyacrylic acid gel and cation technology, which is applied in the preparation of polyacrylic acid gel, cationic rigid sheet reinforcement and its preparation field, can solve the problems of low polyacrylic acid gel strength and application limitations, and achieve strength improvement and separation simple effect

Active Publication Date: 2020-10-09
宁夏宇航油田工程有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the advantages of high water absorption rate, fast water absorption speed, good water retention performance, abundant raw materials, and sensitivity to environmental acidity, polyacrylic acid has attracted extensive attention from researchers at home and abroad in recent years, but its low gel strength has caused its application to be restricted. In addition to limitations, the current enhancement method is mainly through the complexation of high-valent ions

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
  • A kind of cationic rigid sheet reinforcing agent and its preparation method and application, preparation method of polyacrylic acid gel
  • A kind of cationic rigid sheet reinforcing agent and its preparation method and application, preparation method of polyacrylic acid gel
  • A kind of cationic rigid sheet reinforcing agent and its preparation method and application, preparation method of polyacrylic acid gel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The first step: add 5.0wt.% graphene oxide (as N, N dimethyl-1,3-propanediamine in the reaction flask (refluxing) that N, N dimethyl-1,3-propanediamine is housed amine mass) and 0.5wt.% (N,N dimethyl-1,3-propanediamine mass) of p-toluenesulfonic acid, reacted at 120 ° C for 8h; Vacuum-dry to constant weight to obtain the cationic rigid sheet reinforcing agent.

[0041] Second step: 1) In a 250mL four-necked bottle equipped with a stirrer, reflux condenser, dropping funnel and thermometer, add 80mL of distilled water and 1.0g of ammonium persulfate. After the ammonium persulfate was dissolved, 5 g of acrylic acid monomer and 5 g of isopropanol were added. Stir and heat to 70°C.

[0042] 2) Disperse 0.5 g of the cationic rigid sheet reinforcing agent prepared in the first step in the reaction solution in step 1).

[0043] 3) Dissolve the remaining 15g of acrylic acid monomer and 2g of ammonium persulfate in 40mL of water, and drop them into the bottle from the dropping...

Embodiment 2

[0046] The first step: add 5.0wt.% graphene oxide and 0.5wt.% p-toluenesulfonic acid in the reaction flask (reflux) containing N,N dimethyl-1,3-propanediamine, and react at 120°C 8h; after the reaction, filter with suction, wash the filter cake with water, and vacuum-dry to constant weight to obtain the cationic rigid sheet enhancer.

[0047] Second step: 1) In a 250mL four-necked bottle equipped with a stirrer, reflux condenser, dropping funnel and thermometer, add 80mL of distilled water and 1.0g of ammonium persulfate. After the ammonium persulfate was dissolved, 5 g of acrylic acid monomer and 5 g of isopropanol were added. Stir and heat to 70°C.

[0048] 2) Disperse 0.5 g of the cationic rigid sheet reinforcing agent prepared in the first step in the reaction solution in step 1).

[0049] 3) Dissolve the remaining 25g of acrylic acid monomer and 3g of ammonium persulfate in 40mL of water, and drop them into the bottle from the dropping funnel. Due to the heat release du...

Embodiment 3

[0052] The first step: add 5.0wt.% graphene oxide and 0.5wt.% p-toluenesulfonic acid in the reaction flask (reflux) containing N,N dimethyl-1,3-propanediamine, and react at 120°C 8h; after the reaction, filter with suction, wash the filter cake with water, and vacuum-dry to constant weight to obtain the cationic rigid sheet enhancer.

[0053]Second step: 1) In a 250mL four-necked bottle equipped with a stirrer, reflux condenser, dropping funnel and thermometer, add 80mL of distilled water and 1.0g of ammonium persulfate. After the ammonium persulfate was dissolved, 5 g of acrylic acid monomer and 5 g of isopropanol were added. Stir and heat to 70°C.

[0054] 2) Disperse 1.0 g of the cationic rigid sheet reinforcing agent prepared in the first step in the reaction liquid in step 1).

[0055] 3) Dissolve the remaining 25g of acrylic acid monomer and 3g of ammonium persulfate in 40mL of water, and drop them into the bottle from the dropping funnel. Due to the heat release durin...

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

No PUM Login to View More

Abstract

The invention discloses a cation rigid lamellar reinforcing agent, a preparation method and application thereof as well as a preparation method of polyacrylate gel. The preparation method of the polyacrylate gel comprises the following steps: adding distilled water, ammonium persulfate, an acrylic monomer and isopropyl alcohol into a reaction bottle; stirring, heating and refluxing to 60 to 70 DEGC; dispersing the reinforcing agent into a reaction solution; dissolving the residual acrylic monomer and the ammonium persulfate in water and dropwsie adding a solution into a bottle through a liquid dropping funnel; after dropping, continually refluxing until the reaction solution has flowability; pouring the reaction solution into a molding mold; releasing heat in a polymerization process andcontinually reacting to finally form enhanced type polyacrylate gel in the mold. The novel cation lamellar structure reinforcing agent is used for treating the polyacrylate gel; a cation lamellar structure which is not suitable for folding provides a multidirectional crosslinking point for polyacrylic acid, so that the strength of the polyacrylic acid is greatly improved.

Description

technical field [0001] The invention relates to the technical field of reinforcement preparation, in particular to a cationic rigid sheet reinforcement, a preparation method and application thereof, and a preparation method of polyacrylic acid gel. Background technique [0002] Due to the advantages of high water absorption rate, fast water absorption speed, good water retention performance, abundant raw materials, and sensitivity to environmental acidity, polyacrylic acid has attracted extensive attention from researchers at home and abroad in recent years, but its low gel strength has caused its application to be restricted. In addition to limitations, the current enhancement method is mainly through the complexation of high-valent ions. Contents of the invention [0003] In order to provide a polyacrylic acid gel strengthening agent with more excellent performance, the present invention provides a cationic rigid sheet strengthening agent and its preparation method and a...

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): C08K9/04C08K3/04C08L33/02C08F120/06
CPCC08F120/06C08K3/042C08K9/04C08L33/02
Inventor 王晨王霞辛燕杨晓武费贵强
Owner 宁夏宇航油田工程有限公司