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Abrasion-remedied wave-transparent silicon nitride fiber oiling agent and preparation method thereof

A technology of silicon nitride fiber and oil agent, which is applied in fiber treatment, general water supply saving, textile and paper making, etc. It can solve the problem of damaging the performance of ceramic matrix composite materials, detrimental to the high temperature performance of fibers, and the failure of fibers to meet the requirements of use and other problems, to achieve good hydrophilicity and reactivity, improve the chemical bonding force of fibers, and achieve the effect of high wear resistance

Pending Publication Date: 2022-08-05
福建立亚新材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Silicon nitride fiber-reinforced ceramic materials are used in aerospace engines and supersonic weapon radomes. The temperature is usually high, even reaching above 1400 ° C. Carbon fiber and ordinary proportion fibers cannot meet such use requirements.
Therefore, sizing agents containing alkali metals, alkaline earth metals, etc. that have a fluxing effect on ceramic matrix composites at high temperatures are not conducive to the high-temperature performance of fibers, and such sizing agents are directly used as sizing for ceramic fibers that require high-temperature use such as silicon nitride. Additives will damage the performance of ceramic matrix composites

Method used

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  • Abrasion-remedied wave-transparent silicon nitride fiber oiling agent and preparation method thereof
  • Abrasion-remedied wave-transparent silicon nitride fiber oiling agent and preparation method thereof
  • Abrasion-remedied wave-transparent silicon nitride fiber oiling agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) take by weighing 20g epoxy resin (specifically adopt bisphenol A epoxy resin, model is E44, the same below) and 0.16g butyl glycol ether in reactor, temperature rises to 60 ℃ and stirs until resin viscosity descends;

[0030] (2) continue to feed nitrogen to the reactor to remove air interference, slowly drip 10g diethanolamine and keep stirring, be warming up to 80 DEG C after the dripping is completed, and react 120 minutes;

[0031] (3) be cooled to 60 ℃, drip 6.12g of glacial acetic acid and stir, form neutral solution, and react for 30 minutes;

[0032] (4) add 0.15g n-butyl glycidyl ether and 0.03g silane coupling agent, stir and mix;

[0033] (5) 66 mL of deionized water was added dropwise, and the oil was obtained by continuous stirring.

Embodiment 2

[0035] (1) first take by weighing 102g epoxy resin and 0.78g ethylene glycol butyl ether in the reaction kettle, the temperature rises to 60 ℃ and is stirred and heated until the resin viscosity decreases;

[0036] (2) continue to feed nitrogen to the reactor to remove air interference, slowly drip 55g diethanolamine and keep stirring, be warming up to 80 DEG C after the dripping is completed, and react 90 minutes;

[0037] (3) be cooled to 60 ℃, drip 31g of glacial acetic acid and stir, form neutral solution, and react for 30 minutes;

[0038] (4) add 0.75g n-butyl glycidyl ether and 0.15g silane coupling agent, stir and mix;

[0039] (5) Add 338 g of deionized water dropwise, and continue stirring to obtain the oil.

Embodiment 3

[0041] (1) first take by weighing 80g epoxy resin and 0.6g ethylene glycol butyl ether in the reactor, the temperature rises to 60 ℃ and is stirred and heated to under the resin viscosity;

[0042](2) continue to feed nitrogen to the reactor to remove air interference, slowly drip 42.5g diethanolamine and keep stirring, be warming up to 80 ℃ after the dripping is completed, and react 110 minutes;

[0043] (3) be cooled to 60 ℃, drip 24.5g of glacial acetic acid and stir, form neutral solution, and react for 30 minutes;

[0044] (4) add 0.6g n-butyl glycidyl ether and 0.12g silane coupling agent, stir and mix;

[0045] (5) Add 262 g of deionized water dropwise, and continue stirring to obtain the oil.

[0046] Attention should be paid to the above implementation: the produced oil is a solution with a solid content of about 30%, so as to facilitate the storage and transportation of the oil, and it can be configured to 3-5% according to the required sizing rate for production. ...

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Abstract

The invention relates to a wave-transparent silicon nitride fiber oiling agent for repairing wear. The wave-transparent silicon nitride fiber oiling agent is prepared from the following substances in parts by weight: 15 to 20 parts of epoxy resin, 5 to 10 parts of diethanol amine, 0.1 to 0.2 part of ethylene glycol butyl ether, 4 to 7 parts of glacial acetic acid, 0.03 to 0.06 part of silane coupling agent, 0.15 to 0.2 part of n-butyl glycidyl ether and 60 to 70 parts of deionized water. The invention further provides a preparation method of the oiling agent for the wear-repairing wave-transparent silicon nitride fiber, the wear resistance of the fiber can be improved, and the oiling agent has the advantages of being good in stability and low in cost.

Description

technical field [0001] The invention relates to an oil agent for remediating wear wave-transmitting silicon nitride fibers and a preparation method thereof. Background technique [0002] In the production process of the silicon nitride fiber reinforced nitride composite material, the silicon nitride fiber needs to be woven into a preform first, and then combined with the matrix material to prepare a ceramic matrix composite material. However, silicon nitride fibers are in an amorphous glass state and are brittle, which makes them prone to fuzzing and wire breakage during the weaving process. Therefore, in the production process, it is necessary to sizing the silicon nitride fibers by spraying, infiltration, etc. It is used to protect fibers to solve problems such as fluff and broken wires, and to further enhance the mechanical properties of fibers. [0003] At present, the most commonly used traditional oils are epoxy resins, which have high solvent cost, are easy to stick ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/55D06M13/513D06M13/11
CPCD06M15/55D06M13/513D06M13/11D06M2200/35Y02A20/204
Inventor 汪涵崔冰峡江元强黄伟斌蔡武集出腾龙朱家明
Owner 福建立亚新材有限公司
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