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Epoxy resin-based high-bending-modulus polydicyclopentadiene and preparation method thereof

A technology of polydicyclopentadiene and dicyclopentadiene, which is applied in the field of epoxy resin-based high flexural modulus polydicyclopentadiene and its preparation, can solve problems such as environmental pollution and waste of resources, and achieve improved flexural modulus , combined with the effect of stability and good fitting space

Pending Publication Date: 2022-05-13
JIANGSU JI YUAN NEW MATERIAL TECH CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, people mainly used dicyclopentadiene as fuel, which not only caused environmental pollution, but also caused a waste of resources

Method used

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  • Epoxy resin-based high-bending-modulus polydicyclopentadiene and preparation method thereof
  • Epoxy resin-based high-bending-modulus polydicyclopentadiene and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] An epoxy resin-based high flexural modulus polydicyclopentadiene, mainly comprising: 60 parts of tetradentate helicoids, 20 parts of p-dicyclopentadiene, 20 parts of 4-vinylpyridine, 100 parts of cyclopentadiene in parts by weight Oxygen resin, 5 parts neodymium chloride and 2 parts ethylenediamine.

[0033] A kind of preparation method of epoxy resin base high flexural modulus polydicyclopentadiene, the preparation method of described epoxy resin base high flexural modulus polydicyclopentadiene mainly comprises following preparation steps:

[0034](1) Primary molecular assembly: Mix pyrrole, p-hydroxybenzaldehyde, triethyl acetate and dichloromethane in a mass ratio of 1:2:2:5, then add boron trifluoride 0.05 times the mass of pyrrole, and In the atmosphere, react at 40°C for 60 minutes, then add chlorop-benzoquinone 5 times the mass of pyrrole, reflux at 60°C for 5 hours, keep the reflux temperature for 8 minutes, cool to -10°C to crystallize and filter, and wash with...

Embodiment 2

[0038] An epoxy resin-based high flexural modulus polydicyclopentadiene, mainly comprising: 80 parts of tetradentate helicoids, 23 parts of p-dicyclopentadiene, 23 parts of 4-vinylpyridine, 120 parts of cyclopentadiene in parts by weight. Oxygen resin, 7 parts neodymium chloride and 3 parts ethylenediamine.

[0039] A kind of preparation method of epoxy resin base high flexural modulus polydicyclopentadiene, the preparation method of described epoxy resin base high flexural modulus polydicyclopentadiene mainly comprises following preparation steps:

[0040] (1) Primary molecular assembly: Mix pyrrole, p-hydroxybenzaldehyde, triethyl acetate and dichloromethane in a mass ratio of 1:2:3:6, then add boron trifluoride 0.08 times the mass of pyrrole, and In the atmosphere, react at 45°C for 70 minutes, then add chlorop-benzoquinone which is 8 times the mass of pyrrole, reflux at 70°C for 4 hours, keep the reflux temperature and concentrate for 9 minutes, cool to -15°C to crystalliz...

Embodiment 3

[0044] An epoxy resin-based high flexural modulus polydicyclopentadiene, mainly comprising: 100 parts of tetradentate helicoids, 25 parts of p-dicyclopentadiene, 25 parts of 4-vinylpyridine, 140 parts of cyclopentadiene in parts by weight. Oxygen resin, 10 parts neodymium chloride and 4 parts ethylenediamine.

[0045] A kind of preparation method of epoxy resin base high flexural modulus polydicyclopentadiene, the preparation method of described epoxy resin base high flexural modulus polydicyclopentadiene mainly comprises following preparation steps:

[0046] (1) Primary molecular assembly: Mix pyrrole, p-hydroxybenzaldehyde, triethyl acetate and dichloromethane in a mass ratio of 1:2:3:7, then add boron trifluoride 0.1 times the mass of pyrrole, in nitrogen In the atmosphere, react at 50°C for 60 minutes, then add chlorop-benzoquinone 10 times the mass of pyrrole, reflux at 80°C for 3 hours, keep the reflux temperature and concentrate for 8 minutes, cool to -10°C to crystalli...

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Abstract

The invention discloses epoxy resin-based high-bending-modulus polydicyclopentadiene and a preparation method thereof, and relates to the technical field of organic materials. When the epoxy resin-based polydicyclopentadiene with the high bending modulus is prepared, firstly, pyrrole and p-hydroxybenzaldehyde are subjected to a reaction to prepare porphyrin; the preparation method comprises the following steps: reacting acrylic acid with 3-aminopropanol to prepare N-hydroxy-terminated propyl acrylamide; the preparation method comprises the following steps: carrying out a reaction on porphyrin and N-hydroxy-terminated propyl acrylamide to prepare tetradentate porphyrin; the preparation method comprises the following steps: superposing and assembling tetradentate porphyrin molecules to prepare a tetradentate spiral body, and polymerizing dicyclopentadiene, 4-vinylpyridine and the tetradentate spiral body to prepare spiral polydicyclopentadiene; the preparation method comprises the following steps: heating epoxy resin, adding spiral polydicyclopentadiene, neodymium chloride and ethidene diamine, stirring, curing and shaping to obtain the epoxy resin-based high-bending-modulus polydicyclopentadiene. The epoxy resin-based high-flexural-modulus polydicyclopentadiene prepared by the invention has high flexural modulus, excellent temperature change resistance and fluorescence effect.

Description

technical field [0001] The invention relates to the technical field of organic materials, in particular to epoxy resin-based polydicyclopentadiene with high flexural modulus and a preparation method thereof. Background technique [0002] Globally, the production of pyrolysis ethylene is gradually increasing, and thus the production of dicyclopentadiene is also increasing. In the past, people mainly used dicyclopentadiene as fuel, which not only caused environmental pollution, but also caused a waste of resources. How to rationally utilize dicyclopentadiene has become a topic of concern to researchers. [0003] The source of dicyclopentadiene is very abundant, the price is low, and its own polymer has relatively excellent mechanical properties. It can be made into various parts by reaction injection molding, which can be used as auto parts, such as bumpers, bumpers, dashboards, fenders, etc., and can also be used as sporting goods, chemical-resistant containers, etc. At th...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L35/00C08F222/38C08F232/08C08F226/06
CPCC08L63/00C08L35/00C08F222/385C08L2205/04C08F232/08C08F226/06
Inventor 侍小容
Owner JIANGSU JI YUAN NEW MATERIAL TECH CO
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