Polymeric mineral joint mixture for engine containment ring and preparation method of polymeric mineral joint mixture

A containment ring and engine technology, applied in the direction of epoxy resin coating, coating, primer, etc., can solve the problems of different parts, irreplaceable, functional differences, etc., and achieve the effect of uniform coating

Active Publication Date: 2021-03-12
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to foreign data, the coating materials used for the case around the fan blades (that is, the containment ring) include: abradable coatings, corrosion protection coatings and polymer caulking agents. The above three materials are all used in the containment rings. Specifically Different parts of use have different functions and cannot be substituted for each other
The existing domestic polymer sealants cannot meet the process and use requirements of related parts. In order to ensure the development and application of new high-bypass ratio engines, relevant domestic models have used the ideas of similar foreign products to carry out polymer sealants for containment rings. localized development and performance optimization of the agent to meet the needs of engine-related components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Surface glue: Weigh 83g of bisphenol A epoxy resin with an epoxy value of 0.48-0.54, 32g of nitrile rubber, and 242g of aluminum oxide, and knead them in a kneader for 2 hours to obtain the surface glue A component; 90g of polyamide resin, 3g of diethylenetriamine, 4g of silane coupling agent and 183g of glass fiber powder were placed in a blender and stirred evenly to obtain component B of the face glue. The mass ratio of A and B components of the surface glue is 2:1;

[0028] Primer: Weigh 84g of bisphenol A epoxy resin with an epoxy value of 0.48-0.54, 16g of nitrile rubber, and stir them evenly in a mixer, that is, component C of the primer; weigh 95g of polyamide resin, diethylene Put 2 g of triamine and 3 g of silane coupling agent in a mixer and stir evenly to obtain component D of the primer. The mass ratio of primer C and D components is 1.5:1;

[0029] Mix components A and B of the surface glue, and components C and D of the primer, respectively, mechanicall...

Embodiment 2

[0031] Surface glue: Weigh 91g of bisphenol A epoxy resin with an epoxy value of 0.55-0.56, 16g of nitrile rubber, and 250g of aluminum oxide, and knead in a kneader for 2 hours to obtain the surface glue A component; Put 95g of polyamide resin, 4g of diethylenetriamine, 6g of silane coupling agent and 175g of glass fiber powder into a mixer and stir evenly to obtain component B of the surface glue. The mass ratio of the A and B components of the face glue is 2.25:1;

[0032] Primer: Weigh 90g of bisphenol A epoxy resin with an epoxy value of 0.55-0.56 and 10g of nitrile rubber, and stir them evenly in a mixer to obtain component C of the primer; weigh 93g of polyamide resin, diethylene 3g of triamine and 4g of silane coupling agent were placed in a mixer and stirred evenly to obtain component B of the primer. The mass ratio of primer C and D components is 1.7:1;

[0033] Mix components A and B of the surface glue, and components C and D of the primer, respectively, by mecha...

Embodiment 3

[0035] Surface glue: Weigh 108g of bisphenol A epoxy resin with an epoxy value of 0.41-0.47, 35g of nitrile rubber, and 214g of aluminum oxide, and knead in a kneader for 2 hours to obtain the surface glue A component; 98g of polyamide resin, 5g of diethylenetriamine, 7g of silane coupling agent and 172g of glass fiber powder were placed in a blender and stirred evenly to obtain component B of the face glue. The mass ratio of A and B components of the face glue is 2.5:1;

[0036] Primer: Weigh 80g of bisphenol A epoxy resin with an epoxy value of 0.41-0.47 and 20g of nitrile rubber, and stir them evenly in a mixer to obtain component A of the primer; weigh 90g of polyamide resin, two Put 4g of ethylenetriamine and 6g of silane coupling agent in a mixer and stir evenly to obtain component B of the primer. The mass ratio of primer C and D components is 2:1;

[0037] Mix components A and B of the surface glue, and components C and D of the primer, respectively, mechanically or ...

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Abstract

The invention discloses a room-temperature curing type polymerized mineral joint mixture for an engine containment ring, and the mixture comprises a surface adhesive and a bottom adhesive, wherein thesurface adhesive is a putty-like material composed of a two-component material, and the component A is composed of bisphenol A epoxy resin, nitrile butadiene rubber and aluminum oxide; the componentB is prepared from polyamide resin, aliphatic amine, a silane coupling agent and glass fiber powder; the mass ratio of the component A to the component B is 2: 1-2.5: 1; the primer is a C and D double-component material, and the C component is composed of bisphenol A type epoxy resin and nitrile butadiene rubber; the component D is prepared from polyamide resin, aliphatic amine and a silane coupling agent; and the mass ratio of the component C to the component D of the primer is 1.5: 2-2: 1. The protective material has proper bonding strength, can be used for the inner surface of an accommodating ring of an engine fan casing, and is suitable for the working temperature of -60 to 120 DEG C.

Description

technical field [0001] The invention relates to a polymeric mineral caulking agent, in particular to a polymeric mineral caulking agent for a room-temperature-cured engine containment ring, which belongs to the technical field of composite materials. Background technique [0002] The rapid development of the aviation industry has put forward higher and higher requirements for aero-engines. High thrust, high efficiency and low fuel consumption have become the general goals of engine design and manufacture. For this reason, the gas temperature at the inlet of the turbine should be increased as much as possible, and the gap between the rotor and the stator parts should be reduced. Due to the limitation of the temperature of the material, it is limited to increase the gas temperature at the inlet of the turbine. Therefore, the gas path sealing technology that reduces the gap between the compressor, turbine tip and casing becomes an important means to improve engine performance. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D109/02C09D7/61C09D7/63C09D5/00C09D5/18B05D1/28B05D1/36B05D7/24
CPCC09D163/00C09D7/61C09D7/63C09D5/002C09D7/70C09D5/18B05D1/28B05D7/542B05D7/24C08K2003/2227C08L9/02C08K3/22C08K7/14C08K5/5435
Inventor 崔海霞陈磊周惠娣陈建敏李红轩
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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