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

Pluridentate macromolecular bonding agent and preparation method thereof

A technology of macromolecules and bonding agents, which is applied in the field of multi-dentate structure macromolecular bonding agents and the preparation thereof, can solve the problems of complicated operation, many synthesis steps, insignificant improvement of tensile strength and the like, and achieves a simple preparation process. Effect

Active Publication Date: 2016-04-20
XIAN MODERN CHEM RES INST
View PDF4 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bonding agent is added to the propellant (GAP / HMX / Al / AP) formula, which can improve the interfacial bonding performance with the oxidant in the propellant, effectively improve the maximum elongation of the propellant after molding at different temperatures, However, the effect of improving the tensile strength is not obvious. In addition, the preparation of the bonding agent has the disadvantages of many synthesis steps and cumbersome operations.

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
  • Pluridentate macromolecular bonding agent and preparation method thereof
  • Pluridentate macromolecular bonding agent and preparation method thereof
  • Pluridentate macromolecular bonding agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Add 20mL of toluene to a 100mL three-neck flask, add 2.5g of tris(2-hydroxyethyl)isocyanurate, 12.2g of glycidyl methacrylate, stir, Fe-Zn double metal cyanide complex The addition amount is 680ppm, the temperature is raised to 135°C, and the reaction is carried out at constant temperature for 4 hours. The solvent and unreacted raw materials were distilled off under reduced pressure to obtain a light yellow viscous liquid with a yield of 98.3%. Product characterization data are as follows: IR (cm-1): 3448, 2959, 2879, 1718, 1693, 1637, 1460, 1169; 1HNMR: 1.949 (-CH3); 3.695, 4.187, 4.320 (-CH2); 5.592, 6.113 ( -C=CH2); 7.287 (CDCl3)

[0024] Take 15g of the above intermediate, dissolve it in 20mL of chloroform, add 6.4g of isopropanolamine, stir, and react at 25°C for 6h. The solvent was distilled off under reduced pressure to obtain 21 g of light yellow viscous liquid, designated as J-01.

[0025] Product Characterization IR (cm-1): 3375, 2968, 2931, 2880, 1726, 169...

Embodiment 2

[0027] The intermediate was obtained according to Example 1.

[0028] Take 15g of the above-mentioned intermediate and dissolve it in 15mL of chloroform, add 5.2g of ethanolamine at room temperature, stir and raise the temperature to 35°C for 4h. The solvent was distilled off under reduced pressure to obtain 20 g of light yellow viscous liquid, designated as J-02.

[0029] Product Characterization IR (cm-1): 3367, 2935, 2879, 1727, 1694, 1656, 1548, 1462, 1119, 1058

Embodiment 3

[0031] The intermediate was obtained according to Example 1. The preparation of methyl aziridine is obtained by sulfuric acid method with isopropanolamine as raw material.

[0032] Take 15 g of the above intermediate, dissolve it in 15 mL of dichloroethane, add 4.8 g of methyl aziridine dropwise at 5 °C, stir and raise the temperature to 10 °C for 12 h. The solvent was distilled off under reduced pressure to obtain 18.1 g of light yellow viscous liquid, designated as J-03.

[0033] Product Characterization IR (cm-1): 3423, 2966, 2930, 2879, 1731, 1692, 1459, 1171

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 pluridentate macromolecular bonding agent and a preparation method thereof. The structural formula of the bonding agent is as shown in (I). The preparation method of the bonding agent particularly comprises the following steps: taking tris(2-hydroxyethyl)isocyanurate and glycidyl methacrylate as raw materials; synthesizing pluridentate polyether ester with an unsaturated end group under the action of a catalyst; dissolving intermediate polyether ester with a solvent, introducing such functional groups as the hydroxyl group, the secondary amine group, aziridine and methyl aziridine by carbon-carbon double bonds of polyether ester and the Michael reaction of a primary amine compound or a secondary amine compound to obtain the pluridentate macromolecular bonding agent. The pluridentate macromolecular bonding agent is simple in preparation technology and easily accessible in raw material, and can be applied to the field of solid propellants. The structural formula (I) is as shown in the description, wherein X, Y and Z are 1, 2, 3, 4 and 5, and R is as shown in the description.

Description

technical field [0001] The invention relates to a macromolecule bonding agent with a multidentate structure and a preparation method thereof, belonging to the technical fields of chemical synthesis and propellant application. Background technique [0002] With the development of strategic and tactical weapons, the requirements for the energy and mechanical properties of solid propellants are getting higher and higher. Energizing binders, plasticizers and oxidants in solid propellant formulations has become the main way to increase its energy. However, with the addition of high-energy oxidants, the bonding performance between the solid filler and the binder interface will be reduced, resulting in a decrease in the mechanical properties, combustion performance and storage stability of the propellant after molding. When the propellant bears a certain load, it is easy to "Dehumidification" occurs. To solve this problem, a method of adding a bonding agent to the propellant or c...

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 Applications(China)
IPC IPC(8): C07D251/30C07D403/14C06B23/00
CPCC06B23/009C07D251/30C07D403/14
Inventor 王为强杨建明梅苏宁张前余秦伟袁俊惠丰赵锋伟李亚妮李大鹏吕剑
Owner XIAN MODERN CHEM 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