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A kind of silicone resin covering layer material and its preparation and use method

A coating layer, silicone resin technology, applied in mechanical equipment, jet propulsion devices, rocket engine devices, etc., can solve problems such as inconvenience in construction, and achieve the effects of convenient construction operation, good compatibility, and excellent ablation resistance.

Active Publication Date: 2017-03-29
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The primer needs to be used in advance, and it also has certain requirements on the environment and other conditions, which is likely to cause inconvenience in construction

Method used

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  • A kind of silicone resin covering layer material and its preparation and use method
  • A kind of silicone resin covering layer material and its preparation and use method
  • A kind of silicone resin covering layer material and its preparation and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Silicone resin covering layer material is made of the following raw materials in parts by weight:

[0025]

[0026] Among them, phenyl vinyl silicone resin, Vi content 3.62wt.%, R / Si=1.48, Ph / R=50.77%; methyl phenyl vinyl silicone oil, Vi content 0.2wt.%, Ph / R 30% , viscosity (25°C) 1000mpa s; the crosslinking agent is phenyl hydrogen-containing silicone oil, the hydrogen content is 0.6wt.%, and the phenyl content is 58%; the adhesive is silanol-terminated methylphenyl vinyl silicone Alkane oligomer and KH560 condensation reaction product; catalyst is tetramethyldivinyl disiloxane complex with platinum content of 2%; ablation filler is made of silicon carbide, aluminum oxide, zinc oxide according to the mass ratio of 7:7 : 4 compositions.

[0027] The preparation method is as follows:

[0028] Using a three-roll mill, add phenyl vinyl silicone resin, methyl phenyl vinyl silicone oil, carbon fiber, ablation filler, crosslinking agent, and adhesive in sequence, and m...

Embodiment 2

[0030] Silicone resin covering layer material is made of the following raw materials in parts by weight:

[0031]

[0032] Among them, phenyl vinyl silicone resin, Vi content 5.86wt.%, R / Si=1.48, Ph / R=50.77%; methyl phenyl vinyl silicone oil, Vi content 0.2wt.%, Ph / R 30% , viscosity 1000mpa s; crosslinking agent hydrogen content 1.5wt.%, phenyl content 30%; adhesive agent is the condensation reaction product of silanol-terminated methylphenyl vinyl siloxane oligomer and KH560; catalyst It is a tetramethyldivinyldisiloxane complex with a platinum content of 2%. The ablation filler is composed of silicon carbide, aluminum oxide, and zinc oxide in a mass ratio of 7:7:4.

[0033] The preparation method is as follows:

[0034] Using a three-roll mill, add phenyl vinyl silicone resin, methyl phenyl vinyl silicone oil, crosslinking agent, adhesive, carbon fiber, and ablation filler in sequence, and mix the materials to obtain a glue with uniform dispersion and stable performance....

Embodiment 3

[0036] Silicone resin covering layer material is made of the following raw materials in parts by weight:

[0037]

[0038] Among them, phenyl vinyl silicone resin, Vi content 5.86wt.%, R / Si=1.48, Ph / R=50.77%; methyl phenyl vinyl silicone oil, Vi content 0.2wt.%, Ph / R 30% , viscosity 1000mpa s; crosslinking agent hydrogen content 1.5wt.%, phenyl content 30%; adhesive agent is the condensation reaction product of silanol-terminated methylphenyl vinyl siloxane oligomer and KH560; catalyst It is a tetramethyldivinyldisiloxane complex with a platinum content of 2%. The ablation filler is composed of silicon carbide, aluminum oxide, and zinc oxide in a mass ratio of 7:7:4.

[0039] The preparation method is as follows:

[0040] Using a three-roll mill, add phenyl vinyl silicone resin, crosslinking agent, adhesive, carbon fiber, and ablation filler in sequence, and mix the materials to obtain a rubber compound with uniform dispersion and stable performance. Before use, add the c...

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Abstract

The invention relates to a silicon resin coating layer material as well as a preparation method and a use method thereof. The silicon resin coating layer material is prepared by mixing the following raw materials in parts by weight: 100 parts of phenyl vinyl silicon resin, 5-20 parts of methyl phenyl vinyl silicone oil, 3-8 parts of carbon fibers, 12-20 parts of ablative fillers, 8-35 parts of a cross-linking agent, 0.5-5 parts of an adhesive and 0.001-0.05 parts of a catalyst. The coating layer material prepared from the silicon resin as a base material does not need to be reinforced with white carbon black and is excellent in mechanical property and ablation resistance; in addition, the compatibility of the adhesive and a sizing material is good; the coating layer material can be stored for a long term after being prepared, does not need priming during use and is an ideal propellant coating material.

Description

technical field [0001] The invention relates to a cladding layer material for a propellant and a preparation and use method thereof, in particular to a silicone resin cladding layer material, which belongs to the technical field of organosilicon polymer materials. Background technique [0002] Silicone polymer material has both the properties of organic and inorganic materials, has excellent thermal stability, high and low temperature resistance, aging performance, and outstanding resistance to nitroglycerin migration. It is an ideal coating material, of which the two-component Both room temperature vulcanizing (RTV) and silicone resins can be used as base materials. For RTV silicone rubber, fumed silica is usually used for reinforcement, but silica will cause the viscosity of the rubber to increase and affect the ablation performance. Zhao Fengqi and others used silica to reinforce the RTV silicone rubber cladding material, and found that silica exceeding 15phr would serio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L83/07C08L83/05C08K7/06C08K3/34C08K3/22F02K9/32
Inventor 牟秋红彭丹张方志李金辉李冰赵宁
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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