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Epoxy resin complex with long chemical storage stability and temperature thixotropy

A storage stability, epoxy resin technology, applied in the field of polymer material science, can solve the problems of unrepeatable rheological properties, no long-term chemical storage stability and temperature thixotropic epoxy resin complexes, etc. The effect of stable winding trajectory, reduction of resin and fiber waste, and reduction of production costs

Inactive Publication Date: 2005-03-16
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent CN1156166A proposes to use polydibutyl terephthalate or its block copolymer as the anti-flow modifier of epoxy resin to obtain the pasty epoxy resin adhesive with stable anti-flow property, but this technology is in Heating at high temperature dissolves poly(dibutyl terephthalate) or its block copolymer in epoxy resin. During this process, poly(dibutyl terephthalate) or its block copolymer easily interacts with epoxy resin. Transesterification reaction, rheological properties cannot be repeated
However, no epoxy resin compound with long-term chemical storage stability and temperature thixotropy is given

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Add acetylacetonate lanthanide transition metal complex (0.2% to 2.0%) into the E-51 epoxy resin matrix (100%, the following are mass ratios), stir well at 85°C and add methyl tetrahydro Phthalic anhydride (50% ~ 80%) and silane coupling agent KH-550 (0.5% ~ 5.0%), heat up to 90 ° C, stir evenly and add nano silicon dioxide (4% ~ 20% ), and then the whole system continued to stir for 5 hours to obtain this epoxy resin compound. Fiber prepreg experiment of glass fiber, after heating the resin matrix at a constant temperature of 50-60°C for 10-20 minutes, impregnate continuous glass fiber or carbon fiber or aramid fiber for 30-60S, after impregnation, the continuous fiber prepreg is naturally cooled to room temperature ,Winding. After 60 days of storage at room temperature, it can be unrolled directly. Little change in viscosity during storage, no resin migration, no sticking. It can meet the requirements of resin matrix for pre-wet winding technology. At a high tempe...

Embodiment 2

[0015] Add acetylacetonate lanthanide transition metal complex (0.2% to 2.0%) into the E-51 epoxy resin matrix (100%, the following are mass ratios), stir well at 85°C and add methyl hexahydro Phthalic anhydride (50% ~ 80%) and silane coupling agent KH-550 (0.5% ~ 5.0%), heat up to 90 ° C, stir evenly and add nano silicon dioxide (4% ~ 20% ), and then the whole system continued to stir for 5 hours to obtain this epoxy resin compound. Fiber prepreg experiment of glass fiber, after heating the resin matrix at a constant temperature of 50-60°C for 10-20 minutes, impregnate continuous glass fiber or carbon fiber or aramid fiber for 30-60S, after impregnation, the continuous fiber prepreg is naturally cooled to room temperature ,Winding. After 60 days of storage at room temperature, it can be unrolled directly. Little change in viscosity during storage, no resin migration, no sticking. It can meet the requirements of resin matrix for pre-wet winding technology. At a high temper...

Embodiment 3

[0017] Add acetylacetonate lanthanide transition metal complex (0.2% to 2.0%) into the E-51 epoxy resin matrix (100%, the following are mass ratios), stir well at 85°C and add methyl tetrahydro Phthalic anhydride (50% ~ 80%) and silane coupling agent KH-560 (1.0% ~ 4.0%), heat up to 90 ° C, stir evenly and add nano silicon dioxide (4% ~ 20% ), and then the whole system continued to stir for 5 hours to obtain this epoxy resin compound. Fiber prepreg experiment of glass fiber, after heating the resin matrix at a constant temperature of 50-60°C for 10-20 minutes, impregnate continuous glass fiber or carbon fiber or aramid fiber for 30-60S, after impregnation, the continuous fiber prepreg is naturally cooled to room temperature ,Winding. After 60 days of storage at room temperature, it can be unrolled directly. Little change in viscosity during storage, no resin migration, no sticking. It can meet the requirements of resin matrix for pre-wet winding technology. At a high tempe...

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PUM

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Abstract

The invention discloses a category of epoxy resin complexes with long chemical storage stability and temperature thixotropy characterized in that the complexes are prepared by charging acetyl acetone lanthanides group transition metal complexes, methyl tetrohydrogen orthophthalic acid anhydride, silicane coupling agent, nano silica into epoxy resin base through uniform dispersion. The prepared resin system has good wettability with the reinforced material.

Description

technical field [0001] The invention belongs to the field of polymer material science and technology. A class of epoxy resin compounds with long-term chemical storage stability and temperature thixotropy is disclosed. In particular, it relates to epoxy resin compounds that meet the technical requirements of pre-soaked wet filament winding technology. Background technique [0002] Epoxy resin is a kind of thermosetting polymer synthetic material with good adhesion, corrosion resistance, electrical insulation, high strength and other properties. It has been widely used in the bonding of various metals and non-metals, corrosion-resistant coatings, electrical insulation materials, FRP / composite materials, etc. It plays an important role in electronics, electricity, machinery manufacturing, chemical anticorrosion, aerospace, shipping and many other industrial fields, and has become an indispensable basic material in various industrial fields. Epoxy resin can only show its inhe...

Claims

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Application Information

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IPC IPC(8): C08K5/54C08L63/00
Inventor 陈平王秀杰刘扬
Owner DALIAN UNIV OF TECH
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