Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Grafted modified oxidized starch adhesive and preparation method thereof

A technology of oxidized starch and graft modification, which is applied in the direction of graft polymer adhesives, adhesives, adhesive types, etc., can solve the problems of unsatisfactory performance, high moisture absorption rate and low strength of oxidized starch adhesives, Achieve the effect of favorable grafting reaction, low moisture absorption rate and excellent water resistance

Active Publication Date: 2017-10-24
WUXI HAITE NEW MATERIAL RES INST +1
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unmodified oxidized starch adhesive has high moisture absorption rate and low strength, and its performance is not ideal

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
  • Grafted modified oxidized starch adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of N-hydroxyethylacrylamide graft modified oxidized starch adhesive, is made by following raw material:

[0024] Oxidized starch 100g

[0025] Potassium persulfate 0.4 g

[0026] Sodium nonylphenol polyoxyethylene sulfonate 0.8 g

[0027] Nonylphenol ethoxylate 0.8 g

[0028] Polyvinyl alcohol 1799 1 g

[0029] N-Hydroxyethylacrylamide 30 g

[0030] Urea 8 g

[0031] water 385g

[0032] making process:

[0033] (1) Dissolve 100g of oxidized starch, 1g of polyvinyl alcohol 1799, 0.8g of nonylphenol polyoxyethylene sodium sulfonate and 0.8g of nonylphenol polyoxyethylene ether into 300g of water to form starch latex, and heat to 90 ℃ gelatinization for 30min, control the concentration of oxidized starch at 25wt%, and prepare the gelatinized starch solution.

[0034] (2) Cool down to 85°C, add 0.4g of potassium persulfate to 10g of water to dissolve, add the initiator aqueous solution into (1) to obtain an aqueous solution, and keep it warm for 30 minutes. ...

Embodiment 2

[0038] A kind of N-hydroxyethylacrylamide graft modified oxidized starch adhesive, is made by following raw material:

[0039] Oxidized starch 100 g

[0040] Potassium persulfate 0.8 g

[0041] Sodium nonylphenol polyoxyethylene sulfonate 0.5 g

[0042] Nonylphenol ethoxylate 0.5 g

[0043] Polyvinyl alcohol 1799 1.5 g

[0044] N-Hydroxyethylacrylamide 50 g

[0045] Urea 12 g

[0046] water 385g

[0047] making process:

[0048] (1) Dissolve 100g of oxidized starch, 1.5g of polyvinyl alcohol 1799, 0.5g of nonylphenol polyoxyethylene sodium sulfonate and 0.5g of nonylphenol polyoxyethylene ether into 300g of water to form starch latex, and heat to Gelatinize at 90°C for 30 minutes, control the concentration of oxidized starch at 25wt%, and prepare a gelatinized starch solution.

[0049] (2) Cool down to 85°C, add 0.8g of potassium persulfate to 10g of water to dissolve, add the initiator aqueous solution into (1) to obtain an aqueous solution, and keep it warm for 30 mi...

Embodiment 3

[0053] A kind of N-hydroxyethylacrylamide graft modified oxidized starch adhesive, is made by following raw material:

[0054] Oxidized starch 100 g

[0055] Potassium persulfate 0.6 g

[0056] Sodium nonylphenol polyoxyethylene sulfonate 0.7 g

[0057] Nonylphenol ethoxylate 1.2 g

[0058] Polyvinyl alcohol 1799 2 g

[0059] N-Hydroxyethylacrylamide 40 g

[0060] Urea 10 g

[0061] water 385g

[0062] making process:

[0063] (1) Dissolve 100g of oxidized starch, 2g of polyvinyl alcohol 1799, 0.7g of nonylphenol polyoxyethylene sodium sulfonate and 1.2g of nonylphenol polyoxyethylene ether into 300g of water to form starch latex, and heat to 90 ℃ gelatinization for 30min, control the concentration of oxidized starch at 25wt%, and prepare the gelatinized starch solution.

[0064] (2) Cool down to 85°C, add 0.6g of potassium persulfate to 10g of water to dissolve, add the initiator aqueous solution into (1) to obtain an aqueous solution, and keep it warm for 30 minutes....

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 grafted modified oxidized starch adhesive and a preparation method thereof. The grafted modified oxidized starch adhesive is prepared from the following components in parts by weight: 100 parts of oxidized starch, 0.4-0.8 part of initiator, 0.5-0.8 part of anionic emulsifier, 0.5-1.2 parts of nonionic emulsifier, 1-3 parts of a thickening agent, 30-50 parts of reactive grafted modified monomer, 8-12 parts of pH value regulator and 385 parts of water. The grafted modified oxidized starch adhesive has the characteristics of high adhesion strength, low moisture absorption rate, excellent moisture resistance, uniform starch pasting liquid viscosity, benefit for grafting reaction, simple process, zero VOC emission, safety, environment friendliness and the like.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a graft modified oxidized starch adhesive and a preparation method thereof. Background technique [0002] Oxidized starch is an environmentally friendly natural adhesive raw material, which is widely used in many fields. However, the unmodified oxidized starch adhesive has high moisture absorption rate and low strength, and its performance is not ideal. Whether the oxidized starch can be modified to improve the properties of adhesive raw materials is the subject of current research. On the other hand, the N-hydroxyethyl group is a self-crosslinkable reactive monomer, and its own double bond can undergo graft polymerization with free radicals; after the water volatilizes, the N-hydroxyethyl group can generate Self-crosslinking reaction to obtain very good strength, water resistance, and scrub resistance. Whether N-hydroxyethyl groups can be introduced into the modification of oxidized s...

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
IPC IPC(8): C09J151/02C08F251/00C08F220/58C08F2/30C08F2/26
CPCC08F2/26C08F2/30C08F251/00C09J151/02C08F220/58
Inventor 李卫东吴立波黄馨曹英杰李晶波白永平卫晓波董志强
Owner WUXI HAITE NEW MATERIAL RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com