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

A kind of hindered phenol/styrene-acrylic composite emulsion and preparation method thereof

A technology of styrene-acrylic compound emulsion and hindered phenol, which is applied in the direction of coating, etc., can solve the problems such as difficulty in realizing the nano-level dispersion of hindered phenol, and achieve the effect of convenient industrial large-scale production and simple and easy preparation method

Active Publication Date: 2020-07-24
BEIJING UNIV OF CHEM TECH
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to solve the problem that it is difficult to realize the nanoscale dispersion of hindered phenols in the polymer matrix without the help of solvents, and improve the efficiency of the modification of hindered phenols to improve the damping performance of polar polymers

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 hindered phenol/styrene-acrylic composite emulsion and preparation method thereof
  • A kind of hindered phenol/styrene-acrylic composite emulsion and preparation method thereof
  • A kind of hindered phenol/styrene-acrylic composite emulsion and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] After mixing 84.6 parts of styrene, 84.6 parts of methyl methacrylate, and 190.8 parts of n-butyl acrylate to form a monomer mixture, 36 parts of hindered phenol 245 are added to the monomer mixture, and the monomer solution is ultrasonically 15 Minutes, the hindered phenol 245 is dissolved to form a transparent and uniform monomer mixture.

[0042] Mix 752 parts of deionized water, 0.72 parts of sodium bicarbonate, 9 parts of TX-30, 7.2 parts of SR-10, and heat the mixture at 50°C to make TX-30 and SR-10 fully dissolve in the water to form a transparent and uniform The emulsifier aqueous solution.

[0043] 0.54 parts of ammonium persulfate and sodium bisulfite were added to 44 parts of deionized water to prepare an aqueous initiator solution.

[0044] Use a high-pressure homogenizer to homogenize the monomer mixture and the emulsifier aqueous solution, and the homogenization pressure is 50 MPa to 100 MPa, and the homogenization is performed in 3 processes to obtain a homogen...

Embodiment 2

[0047] The difference between Example 2 and Example 1 is that the type of hindered phenol is changed to hindered phenol AO-60.

Embodiment 3

[0049] The difference between Example 3 and Example 1 is that the type of hindered phenol is changed to hindered phenol AO-80.

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
Damping temperature rangeaaaaaaaaaa
Login to View More

Abstract

The invention discloses hindered phenol / styrene-acrylic composite emulsion and a preparation method thereof, and belongs to the field of water-based resin emulsion synthesis. The hindered phenol / styrene-acrylic composite emulsion is prepared from, by weight, 5-20 parts of styrene, 5-20 parts of methyl methacrylate, 20-40 parts of n-butyl acrylate, 1-35 parts of hindered phenol, 0.1-1 part of sodium bicarbonate, 1-4 parts of emulsifier, 50-80 parts of deionized water and 0.01-0.1 part of initiator. By preparing hindered phenol / styrene-acrylic nanometer composite particles, by controlling the size of the composite particles, nano-scale dispersion of hindered phenol in a polymer substrate is achieved, the composite emulsion can form a film under the room temperature, the maximum loss factor of the composite film can reach 2.69, the effective damping temperature domain can reach 112 DEG C, and the emulsion is particularly suitable for being used as a damping material.

Description

Technical field [0001] The invention belongs to the field of water-based resin emulsion synthesis and provides a method for preparing hindered phenol / styrene-acrylic composite emulsion. The hindered phenol / styrene-acrylic composite emulsion provided by the invention can be used as a vibration damping material in industries such as automobiles, high-speed railways, large machinery, and aircraft. Background technique [0002] Polymer-based damping materials are a kind of promising damping materials due to their good processing characteristics and excellent damping properties, and are widely used as vibration and noise reduction materials. The use of hindered phenols to modify polar polymers has proven to be an efficient method for improving the damping performance of polar polymers. The principle is that the hindered phenols can form a reversible weak hydrogen bond with the polar polymer matrix. Continuous fracture and formation consume a lot of energy, thereby improving the dampi...

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): C08F220/18C08F220/14C08F212/08C08F2/26C08F2/30C08K5/134C08K5/20C08K5/159C09D133/08C09D7/63
CPCC08F2/26C08F2/30C08F220/18C08F220/1804C08K5/1345C08K5/159C08K5/20C09D7/63C09D133/08C08F220/14C08F212/08
Inventor 李效玉王飞邱藤
Owner BEIJING UNIV OF CHEM TECH