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

A kind of seed emulsion preparation method

An emulsion and seed technology, applied in the direction of adhesive types, ester copolymer adhesives, etc., can solve the inherent quality (dry resistance, water washability is not guaranteed, poor water washability and cold resistance, product dispersion, stability It can improve the self-crosslinking performance, soft hand and water resistance.

Active Publication Date: 2015-09-30
长兴三伟热熔胶有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the washing resistance and cold resistance of polyacrylate are relatively poor, and its "cold brittle and hot sticky" characteristics limit its application in medium and high-grade powder-free base pulp
When some fusible interlining manufacturers currently use powder-free base pulp, most of them use common polypropylene latex in other industries and a simple manual labor and physical mixing process with water. The dispersion and stability of the product are poor, and large-scale production coating It is difficult to control the process during layer operation, and the internal quality (drying resistance, washing performance) cannot be guaranteed

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 seed emulsion preparation method
  • A kind of seed emulsion preparation method
  • A kind of seed emulsion preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0013] A method for preparing self-crosslinking water-based polyacrylate powder-free base paste for clothing adhesive lining, comprising the following steps: first, mixing water-based polyacrylate emulsion, auxiliary agents and deionized water, wherein the water-based polyacrylate Acrylate emulsion is prepared by pre-emulsion, seed emulsion, sub-emulsion, 10% adipic hydrazide aqueous solution and ammonia water. The pre-emulsion is composed of methyl methacrylate, butyl acrylate, acrylic acid, diacetone acrylamide , sodium alkylamide ethylene sulfonate, fatty alcohol polyoxyethylene ether and deionized water. The seed emulsion is prepared from a composite initiator and a polymerization bottom material. Oxyethylene ether and deionized water are prepared, the composite initiator is prepared from ammonium persulfate, sodium dodecylbenzenesulfonate and deionized water, and the secondary emulsion is composed of monomers and emulsifiers, The monomer is composed of methyl methacrylate...

preparation example 1

[0074] The present invention adopts the semi-continuous emulsion polymerization process and the seed emulsion polymerization method of pre-emulsified monomers to carry out conventional emulsion polymerization and core-shell emulsion polymerization respectively on the same formula, and designs the composition of the core-shell to synthesize a series of polymer emulsions. The formulation composition is shown in Table 1.

[0075] Table 1 Different polymerization methods and formulation composition

[0076]

[0077] Table 2 shows the stability and emulsion properties of different polymerization methods.

[0078] Table 2 Stability and emulsion properties of different polymerization methods

[0079]

[0080]

Embodiment 1

[0082] Take the PRA-2 sample emulsion in Preparation Example 1 and cool it down to room temperature, slowly add 10% adipic hydrazide (ADH) aqueous solution, and neutralize it with ammonia water until the pH value is 7-8. Filtrate and discharge to obtain a milky white emulsion with blue light, which is the product of the present invention—a main emulsion of self-crosslinking water-based polyacrylate powder-free base slurry for clothing adhesive interlining.

[0083] The basic formula of the powder-free base pulp includes, in addition to the medium water, the base main emulsion, pH regulator, thickener, tackifier, brightener, preservative and defoamer, etc. Calculate the amount of deionized water and main emulsion according to the preset plan, adjust the pH value of the system to neutral with ammonia water, and then add the corresponding water-based additives to adjust the viscosity [viscosity <30000 (mPa·s / 20°C)] After that, the product of the present invention can be prepared,...

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
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing a seed emulsion for preparing a waterborne polyacrylate resin emulsion. The method for preparing the seed emulsion comprises the following steps: firstly, adding polymerization kettle bottom materials in a reaction kettle for stirring, then extracting 1 / 4 preemulsion into the reaction kettle, increasing the temperature to 75 DEG C, and then dripping 1 / 4 compound initiating agent to react for 30 minutes to obtain the seed emulsion. The preemulsion is prepared by methyl methacrylate, butyl acrylate, acrylic acid, diacetone acrylamide, sodium alkylamide ethylene sulfonate, fatty alcoholpolyoxyethylene ether and deionized water. After the soap-free emulsion prepared with hydrophobic and hydrophilic monomers by the core shell emulsion copolymerization technology is applied to the powderless base mud, the seed emulsion has the characteristic of higher cleanliness in preparation process and product itself, meets the requirements of green, environmental protection and health, and conforms to the trend of the times.

Description

technical field [0001] The invention relates to a preparation method of self-crosslinking water-based polyacrylate powder-free base slurry for clothing adhesive interlining, in particular to a preparation method of seed emulsion therein. Background technique [0002] Since the appearance of double-point interlining, due to its outstanding advantages such as superior comprehensive performance, beautiful appearance, and wide application range, it has become the most important type of interlining industry in my country in less than ten years of development. Modern new coating technology with added value turns a new page. However, from a technical point of view, the field of double-point special powder-free base pulp is still random and blind. There are even a considerable number of interlining manufacturers who have chosen a large number of other industries to mix emulsion and water. There is no way to talk about washing resistance and solvent resistance when making double-dot ...

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): C08F220/14C08F220/18C08F220/06C08F220/58C08F2/26C08F2/30C08J3/24C09J133/14
Inventor 殷伟乔
Owner 长兴三伟热熔胶有限公司
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