Epoxy functional group containing nano-reinforcer for hybrid polymer epoxy resin

A technology of nano-reinforcing agent and epoxy resin, which is applied in the field of preparation of hybrid system of inorganic nanoparticles and high polymers, can solve problems such as high cross-linking density, poor impact resistance and weather resistance, and large internal stress, and achieve Easy to adjust the effect

Active Publication Date: 2015-02-18
山东泰特尔新材料科技有限公司
View PDF10 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, epoxy resin has high crosslinking density, large internal stress, brittle quality, poor impact resistance and weather resistance after curing, which limits its application to a certain extent.

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
  • Epoxy functional group containing nano-reinforcer for hybrid polymer epoxy resin
  • Epoxy functional group containing nano-reinforcer for hybrid polymer epoxy resin
  • Epoxy functional group containing nano-reinforcer for hybrid polymer epoxy resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Add 80 ml of acetone and 120 ml of deionized water into a 500 ml three-neck flask, add 80 ml of KH-560 and 10 ml of hydrochloric acid under magnetic stirring, and heat to reflux at 70°C for 24 hours. The obtained product was evaporated with a rotary evaporator to remove the solvent, the precipitate was dissolved in tetrahydrofuran, dropped into water to re-precipitate under stirring, separated and purified through three cycles, and finally the product was put into a vacuum drying oven (40°C) and dried at a constant temperature for 24 hours to obtain Yellowish solid, the name is hydroxyoctapolysilsesquioxane. The sample was prepared by coating method, a small amount of product was dissolved in tetrahydrofuran, dried under infrared lamp, and its structure was analyzed by infrared spectrum test.

Embodiment 2

[0016] Take by weighing 14.72 grams of the hydroxyoctagonal silsesquioxane obtained in Example 1, add to 80 milliliters of N,N-dimethylformamide (DMF), stir in an ice bath for 1 hour and cool to 0 ℃, add 20 ml of triethylamine to the mixed solution, slowly add 18.08 g of 2-chloroacetyl chloride dropwise to the mixed solution while stirring, and react at room temperature for 24 hours after the dropwise addition is completed. After the reaction is over, the reaction solution is washed with 0.5mol / L sodium hydroxide solution, 0.5mol / L hydrochloric acid solution and a large amount of deionized water successively. The obtained macromolecular initiator was denoted as POSS-Cl after vacuum drying at ℃ for 48 hours.

Embodiment 3

[0018] Add 0.27 g (0.1 mmol) macroinitiator POSS-Cl in 50 ml reaction flask, dissolve in 15 ml DMF, add 2.72 g MMA and 3.86 g GMA and stir to dissolve, carry out vacuum pumping-nitrogen gas cycle three times. 0.33 g of CuCl and 0.77 g of tris[2-(dimethylamino)ethyl]amine (ME6TREN) were dissolved in DMF, and the solution was transferred into a reaction vial with a syringe, and reacted at 50° C. for 3 h under magnetic stirring. After the reaction, the reaction solution was diluted with DMF, separated by a neutral alumina separation column, dialyzed for 2 days, and the dialyzed aqueous solution was freeze-dried to obtain a product designated as POSS-P(MMA-co-GMA).

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
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses an epoxy functional group containing nano-reinforcer for hybrid polymer epoxy resin. The preparation method of the epoxy functional group comprises the following steps: taking gamma-(2,3-epoxypropyoxy)propyltrimethoxysilane as a raw material, conducting condensation polymerization to prepare the raw material to hydroxyl octapolyhedral oligomeric silsesquioxane (POSS-OH), then transforming the substance to form a macroinitiator, taking methyl methacrylate and glycidyl methacrylate as monomers to conduct atom transfer radical polymerization (ATRP), under the control action of the ATRP polymerization to molecular weight, adjusting the ratio of an inorganic component to a high polymer component in the star hybrid polymer, so as to control the properties; synthesizing the nano-reinforcer containing the epoxy functional group for hybrid polymer epoxy resin, which regards the inorganic component POSS-OH as a core, and the copolymer chain segment as an arm. The polymer nano-reinforcer can be added to the powered epoxy resin to modify the resin; the impact strength of the modified and cross-linked epoxy resin is 1.8-2.9 times of that before modification, the glass transition temperature is increased by 21 DEG C, and the tensile strength is increased by 44%.

Description

technical field [0001] The invention relates to the synthesis of a hybrid polymer epoxy resin nano reinforcement containing epoxy functional groups, which relates to the preparation of a hybrid system of inorganic nanoparticles and high polymers, and belongs to the technical field of new materials. Background technique [0002] Organic-inorganic nanocomposites refer to composite materials in which the size of the dispersed phase has at least one dimension less than 100nm. This material is composed of organic and inorganic phases in the nanometer range. Because the interface area between the two phases is very large and there is a chemical combination between the interfaces, it has ideal bonding properties. In recent years, research on the compounding of inorganic materials and organic polymers has aroused great interest. Through the synergy between organic and inorganic components, materials can exhibit comprehensive properties of organic polymer materials and inorganic fun...

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): C08F220/14C08F220/32C08L33/12C08L33/14C08L63/00
Inventor 倪才华张丽萍石刚
Owner 山东泰特尔新材料科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap