Damage color development type epoxy glass polymer and fiber or explosive composite material thereof

An epoxy and polymer technology, applied in the direction of explosives, a single substance as an explosive, non-explosive/non-thermal agent components, etc., can solve the problem of damage and color development of composite materials

Pending Publication Date: 2021-07-30
INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing epoxy glass polymers are often used to realize the deformation stress release of epoxy and its composite materials, self-healing and disassembly, reprocessing or recyclable properties, and are rarely used to realize the characteristics of epoxy and its fibers or Damaged Color Development of Explosive Composites

Method used

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  • Damage color development type epoxy glass polymer and fiber or explosive composite material thereof
  • Damage color development type epoxy glass polymer and fiber or explosive composite material thereof
  • Damage color development type epoxy glass polymer and fiber or explosive composite material thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The damage color-developing epoxy glass macromolecule of the present invention is composed of 50-70 parts of epoxy resin A, 10-30 parts of epoxy curing agent B, and 5-20 parts of epoxy diluent in parts by weight.

[0028] The epoxy resin A is diphenyl dithiodiglycidyl ether, the epoxy curing agent B is tetraethylenepentamine, and the epoxy diluent is phenyl monoglycidyl ether.

[0029] The damage-coloring epoxy glass polymer exhibits a color change (pink) visible to the naked eye when damaged, such as figure 1 shown

Embodiment 2

[0031] The damaged color-developing epoxy glass polymer of the present invention comprises 70-100 parts of epoxy resin A, 30-50 parts of epoxy curing agent B, 20-40 parts of epoxy diluent and 20-50 parts by weight. Components of inorganic fillers.

[0032] The epoxy resin A is diphenyl dithiodiglycidyl ester, the epoxy curing agent B is m-phenylenediamine, the epoxy diluent is phenyl monoglycidyl ester, and the inorganic filler 10-30nm SiO 2 and other inorganic particles.

[0033] The damage-coloring epoxy glass polymer exhibits a color change (orange) visible to the naked eye when damaged, such as figure 2 shown

Embodiment 3

[0035] The damage color-developing epoxy glass polymer of the present invention comprises 30-60 parts of epoxy resin A, 15-35 parts of epoxy curing agent B, 10-20 parts of epoxy diluent and 10-20 parts by weight. Components of inorganic fillers.

[0036] The epoxy resin A is diphenyl dithiodiglycidyl ester, the epoxy curing agent B is methyl hexahydrophthalic anhydride, and the epoxy diluent is bisphenol F diglycidyl Ether, the inorganic filler is SiO of 100-200nm 2 and other inorganic particles.

[0037] The damage-coloring epoxy glass polymer exhibits a color change visible to the naked eye when damaged.

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PUM

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Abstract

The invention discloses a damage developing type epoxy glass polymer and a fiber or explosive composite material thereof, and the damage developing type epoxy glass polymer is prepared from the following components in parts by weight: 50-100 parts of epoxy resin A, 10-50 parts of an epoxy curing agent B, 5-40 parts of an epoxy diluent and 0-50 parts of an inorganic filler, or 50-100 parts of epoxy resin C, 10-50 parts of an epoxy curing agent D, 5-40 parts of an epoxy diluent and 0-50 parts of an inorganic filler. The material has the characteristics of releasing deformation stress, self-repairing, disassembling, reprocessing and forming and the like of epoxy glass macromolecules, and can generate macroscopic color changes including green, orange or pink and the like when being faced with different sizes and forms of damages such as scratches, cracks, fracture surfaces or crushing and the like.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to damage color-developing epoxy glass polymers and fiber or explosive composite materials thereof. Background technique [0002] Epoxy resin is a commonly used thermosetting polymer. Due to its advantages of stable structure, excellent mechanical properties, chemical corrosion resistance and excellent process performance, it is used as coating, adhesive and potting glue in parts assembly, explosive compounding, structural It has been widely used in bonding, fiber composite and so on. However, due to the very good cross-linking density, epoxy and its composite materials are brittle. During use, especially under external force or temperature shock, they are prone to damage such as scratches, cracks, fractures or breakage. Moreover, the fully cured epoxy has a three-dimensional (body-shaped) cross-linked network structure, which also makes epoxy and its composit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C06B23/00C06B49/00
CPCC06B23/00C06B49/00
Inventor 陈茂赵秀丽周琳陈忠涛余雪江段舒怡吴冶平祝青张银宇
Owner INST OF CHEM MATERIAL CHINA ACADEMY OF ENG PHYSICS
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