High temperature-resistant resin matrix and preparation method thereof

A technology of high temperature resistant resin and matrix, applied in the field of high temperature resistant resin matrix and its manufacturing, can solve the problems of insignificant toughening effect, etc., and achieve the effects of excellent processability, avoidance of explosion and high heat resistance

Inactive Publication Date: 2018-03-02
WEIHAI GUANGWEI COMPOSITES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using rigid inorganic fillers, such as glass microspheres and aluminum hydroxide, the toughening effect is not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0018] Equipment: The equipment required by the present invention includes: agitator, high-temperature reactor and medium-temperature reactor equipped with heating, temperature controller and vacuum system, vacuum oven, vacuum pump, blast drying oven.

[0019] Add 15 parts by mass of toughening agent in batches to 10 parts by mass of bisphenol A epoxy resin at 140-150°C, and stir for 2-2.5 hours until all the toughening agent melts and the mixed solution is uniform. The solution is called Component A.

[0020] Add 32 parts by mass of multifunctional epoxy resin to 25 parts by mass of component A, the solution temperature is in the range of 100-110°C, and the stirring time is 10-15min until the mixed solution is uniform. The solution at this time is called for the B component.

[0021] Add 20 parts by mass of curing agent and 8 parts by mass of curing accelerator to 48 parts by mass of multifunctional epoxy resin, and stir. The concentration of the mixture is kept in the range...

Embodiment example 2

[0025] Equipment: Same as Embodiment 1

[0026] Add 13 parts by mass of toughening agent in batches to 15 parts by mass of bisphenol A epoxy resin at 140-150°C, and stir for 2-2.5 hours until all the toughening agent melts and the mixed solution is uniform. The solution is called Component A.

[0027] Add 30 parts by mass of multifunctional epoxy resin to 28 parts by mass of component A, the solution temperature is in the range of 100-110°C, and the stirring time is 10-15min until the mixed solution is uniform. The solution at this time is called for the B component.

[0028] Add 20 parts by mass of curing agent and 6 parts by mass of curing accelerator to 45 parts by mass of multifunctional epoxy resin, and stir. The concentration of the mixture is kept in the range of ≤70°C, and the stirring time is 20-25min. After mixing is complete, three-roll milling is performed two or three times, and the mixture at this time is called component C.

[0029] Add 71 parts by mass of co...

Embodiment example 3

[0032] Equipment: Same as Embodiment 1

[0033] Add 11 parts by mass of toughening agent to 20 parts by mass of bisphenol A epoxy resin at 140-150°C in batches, and stir for 2-2.5 hours until all the toughening agent is melted and the mixed solution is uniform. The solution is called Component A.

[0034] Add 28 parts by mass of multifunctional epoxy resin to 31 parts by mass of component A, the solution temperature is in the range of 100-110°C, and the stirring time is 10-15min until the mixed solution is uniform. The solution at this time is called for the B component.

[0035] Add 25 parts by mass of curing agent and 5 parts by mass of curing accelerator to 42 parts by mass of multifunctional epoxy resin, and stir. The concentration of the mixture is kept in the range of ≤70°C, and the stirring time is 20-25min. After mixing is complete, three-roll milling is performed two or three times, and the mixture at this time is called component C.

[0036] Add 72 parts by mass o...

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Abstract

The invention relates to a high temperature-resistant resin matrix and a preparation method thereof, which belong to the field of a high-molecular material. The high temperature-resistant resin matrixcomprises the following raw materials in parts by mass: 65-80 parts of multi-functional epoxy resin, 8-15 parts of a flexibilizer, 10-25 parts of bisphenol-A epoxy resin, 15-30 parts of a curing agent, and 0.1-8 parts of a curing accelerator. The high temperature-resistant resin matrix designed by a formula has excellent manufacturability, a composite material prepared by the resin matrix has excellent performances of high heat resistance, high intensity, high impact strength, and high corrosion resistance, and the preparation method of the resin can avoid the risk of implosion of the multi-functional epoxy resin under high temperature.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a high-temperature-resistant resin matrix and a manufacturing method thereof. Background technique [0002] As we all know, epoxy resin with both toughness and heat resistance has been a research hotspot. With rigid inorganic fillers, such as glass microspheres and aluminum hydroxide, the toughening effect is not obvious. Toughening modification with rubber elastomer will greatly reduce its glass transition temperature while improving toughness. The interpenetrating network polymer (IPN) method is used for toughening, and the phase structure plays a dominant role in the factors affecting the performance of IPN. It is necessary to control the conditions such as interfacial tension, crosslinking density, polymerization method and IPN components; use high-performance engineering plastics , such as polysulfone, polyethersulfone, polyetherimide, polyimide, etc. to toughen modified e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08L81/06C08L71/10C08L61/16C08L71/12C08L53/00C08G59/72C08G59/68C08G59/50
CPCC08L63/00C08G59/50C08G59/5033C08G59/504C08G59/686C08G59/688C08G59/72C08L2201/08C08L2205/025C08L2205/03C08L81/06C08L71/00C08L61/16C08L71/12C08L53/00
Inventor 曾秋云林凤森丛庆李盛林王大伟李琳郭辉严红超李刚
Owner WEIHAI GUANGWEI COMPOSITES
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