Anti-aging auxiliary agent bag and preparation method thereof and application of anti-aging auxiliary agent bag in carbon fiber prepreg

A carbon fiber prepreg and anti-aging technology, which is applied in the field of special additives, can solve the problems of large precipitation risk, unsatisfactory formula design, and high-temperature curing requirements of antioxidants, and achieve good synergy and improve thermal oxygen resistance. Effects of Aging and Photoaging on Properties

Pending Publication Date: 2022-02-18
江门市严恩化工科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of patent CN 111072921A is to invent an anti-ultraviolet epoxy resin curing agent. The formula they choose has a certain anti-aging effect, but their invention is not suitable for our specific high-end application scene, that is, carbon fiber prepreg curing. They The formula cannot pass the test of SAE J2527 xenon lamp aging for more than 2000 hours, and the formula of patent CN111072921A is mainly solid, and there is a great risk of precipitation in the application field mentioned in the present invention
Patent CN110157298B discloses a yellowing-resistant and antibacterial epoxy resin sealant. The antioxidant they adopt cannot meet the high-temperature curing requirements of carbon fiber prepreg in the application scene of the present invention, and the formula system of patent CN 110157298B does not consider the application of the present invention One of the important indicators of scene carbon fiber prepreg cloth is that the appearance requirement should not be lighter than the background color, which is an important technical indicator. In addition, there is the same problem as the patent CN 111072921A. Their formula design cannot meet the technical requirements of xenon lamp aging for more than 2000 hours under the SAE J2527 standard. Therefore also can not be applied to this specific technical application field of the epoxy curing carbon fiber prepreg involved in the present invention

Method used

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  • Anti-aging auxiliary agent bag and preparation method thereof and application of anti-aging auxiliary agent bag in carbon fiber prepreg

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The anti-aging additive package product applied to epoxy resin cured carbon fiber prepreg in this embodiment includes the following components in mass percentage:

[0031] Liquid phenylmethylamine UV absorber: 60%;

[0032] Liquid light stabilizer UV-292: 30%;

[0033] Antioxidant 1076: 10%.

[0034] The anti-aging aid package product is prepared by the following method:

[0035] (1) After weighing the liquid phenylmethylamine ultraviolet absorber and the liquid light stabilizer UV-292 according to the above mass percentages, put them in a 304 stainless steel barrel and mix them with a high mixer for later use.

[0036] (2) Weigh the solid antioxidant 1076 powder according to the above mass percentage and put it into the liquid mixture obtained in step (1); raise the temperature of the mixing tank to 80°C, and stir until the solid antioxidant powder is completely Dissolve until the product is clear and transparent, pass through a 400-mesh stainless steel filter, and ...

Embodiment 2

[0038] The anti-aging additive package product applied to epoxy resin cured carbon fiber prepreg in this embodiment includes the following components in mass percentage:

[0039] Liquid UV absorber UV-400: 45%;

[0040] Liquid light stabilizer UV-292: 40%;

[0041] Antioxidant 1076: 15%.

[0042] The anti-aging aid package product is prepared by the following method:

[0043](1) Weigh the liquid ultraviolet absorber UV-400 and the liquid light stabilizer UV-292 according to the above mass percentages, put them in a 304 stainless steel bucket and mix them with a high mixer for later use.

[0044] (2) Weigh the solid antioxidant 1076 powder according to the above mass percentage and put it into the liquid mixture obtained in step (1); raise the temperature of the mixing tank to 80°C, and stir until the solid antioxidant powder is completely Dissolve until the product is clear and transparent, pass through a 400-mesh stainless steel filter, and get a transparent liquid anti-ag...

Embodiment 3

[0046] The anti-aging additive package product applied to epoxy resin cured carbon fiber prepreg in this embodiment includes the following components in mass percentage:

[0047] Liquid UV absorber UV 384-2: 60%;

[0048] Liquid light stabilizer UV-292: 25%;

[0049] Antioxidant 245: 15%.

[0050] The anti-aging aid package product is prepared by the following method:

[0051] (1) Weigh the liquid UV absorber UV 384-2 and the liquid light stabilizer UV-292 according to the above mass percentages, put them in a 304 stainless steel bucket and mix them with a high mixer for later use.

[0052] (2) Weigh the solid antioxidant 245 powder according to the above mass percentage and put it into the liquid mixture obtained in step (1); the temperature of the mixing tank is raised to 80°C, and stir until the solid antioxidant powder is completely Dissolve until the product is clear and transparent, pass through a 400-mesh stainless steel filter, and get a transparent liquid anti-agin...

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Abstract

The invention belongs to the technical field of special auxiliary agents, and discloses an anti-aging auxiliary agent bag and a preparation method thereof, and application of the anti-aging auxiliary agent bag in carbon fiber prepreg. The anti-aging auxiliary agent bag is in a uniform transparent liquid state, and comprises the following components in percentage by mass: 45-60% of a liquid ultraviolet absorbent, 20-40% of a liquid HALS light stabilizer and 10-15% of an antioxidant. The preparation method comprises the following steps: stirring and mixing a liquid ultraviolet absorbent and a liquid HALS light stabilizer, then adding solid antioxidant powder, heating and stirring until the antioxidant powder is completely dissolved, filtering, and cooling to room temperature to obtain a clear and transparent anti-aging additive package product. The anti-aging auxiliary agent bag product provided by the invention can effectively solve the problems that the epoxy resin is not resistant to light aging and thermo-oxidative aging in a high-temperature curing process, has the advantages of small influence on the ground color of the epoxy resin and the like, and is very suitable for being applied to epoxy resin curing carbon fiber prepreg cloth.

Description

technical field [0001] The invention belongs to the technical field of special additives, and in particular relates to an anti-aging additive package, a preparation method and an application in carbon fiber prepreg. Background technique [0002] Epoxy resin is a high molecular polymer with the molecular formula (C 11 h 12 o 3 )n, refers to the general term for a class of polymers containing more than two epoxy groups in the molecule. It is the polycondensation product of epichlorohydrin and bisphenol A or polyol. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to open the ring, cure and cross-link to form a network structure, so it is a thermosetting resin. Due to the excellent physical, mechanical and electrical insulation properties of epoxy resin, its bonding performance with various materials, and the flexibility of its use process, other thermosetting plastics do not have it. Therefore, it can be made i...

Claims

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Application Information

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IPC IPC(8): C08K5/3435C08K5/3475C08K5/3492C08K5/29C08K5/134C08J5/24C08L63/00C08K7/06
CPCC08K5/3435C08K5/1345C08K5/29C08K5/3475C08K5/3492C08J5/24C08J2363/00C08K7/06
Inventor 严明芳
Owner 江门市严恩化工科技有限公司
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