Fibre reinforced vinyl ester resin base pultrusion composite

A vinyl ester resin and composite material technology, which is applied in the field of fiber-reinforced vinyl ester resin composite materials, can solve the problems of difficult to meet heat resistance, complex production process, reduced toughness of composite materials, etc., and achieve excellent high temperature resistance performance and mechanical properties. performance, excellent mechanical properties, and the effect of excellent heat resistance

Inactive Publication Date: 2007-11-28
胜利油田孚瑞特石油装备有限责任公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The temperature resistance of the resin matrix determines the temperature resistance of the composite material. At present, vinyl ester resin has become the main resin matrix of pultrusion composite materials because of its excellent mechanical properties, heat resistance, corrosion resistance and rapid curing. , but the heat resistance is difficult to meet the requirements of higher service temperature. For example, the general-purpose bisphenol A vinyl ester resin has a glass transition temperature of 136°C, and its composite materials can only be used for a long time in an environment below 90°C.
Although the heat resistance of resin-based composites can be improved in the following ways: including amine modification, boric acid modification, aromatic hydrocarbon modification, molybdenum modification, polyimide modification, phosphorus modification, benzoxazine Compound modification and cyanate modification, but the pultrusion process has strict requirements on the viscosity, curing speed, wettability and other properties of the resin, and many modification methods cannot meet the requirements of a stable and continuous pultrusion process
For example, Japanese patent JP1266120 discloses a heat-resistant vinyl ester resin composition, which uses novolac epoxy resin-methacrylate, epoxy resin-methacrylate, styrene, and divinylbenzene to react with additives. Form heat-resistant vinyl ester resin composition, improve the heat resistance of vinyl ester resin, but the production process of this method is complex, mainly used in compression molding process, it is difficult to directly adopt in pultrusion production process
U.S. Patent No. 4,480,077 discloses a heat-resistant vinyl ester resin. Heat resistance is improved by adding ethylenically unsaturated monomers and dicyclopentadiene to the vinyl ester resin, but the toughness of the composite material will be reduced, and the impact strength will be reduced. decline, the prepared pultruded composites cannot meet the high-performance sucker rod use

Method used

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  • Fibre reinforced vinyl ester resin base pultrusion composite
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  • Fibre reinforced vinyl ester resin base pultrusion composite

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The composition of high temperature resistant vinyl ester resin composition is as follows:

[0024] Phenolic vinyl ester resin (Fuchem-890) 50 parts

[0025] Bisphenol A vinyl ester resin (Ashland H-922) 50 parts

[0026] Organic peroxide curing agent 2 parts

[0027] Of which: bis(4-tert-butylcyclohexyl) peroxydicarbonate

[0028] (trade name Perkadox-16): 0.5 parts

[0029] Tert-butyl peroxybenzoate (trade name Trigonox-C): 1.5 parts

[0030] Release agent (trade name INT-PS125) 3 parts

[0031] After the above components are mixed and stirred evenly, pour into the dipping tank of the pultrusion equipment. The fiber reinforced material is T300-12K carbon fiber, and a carbon fiber reinforced resin-based unidirectional composite material is obtained, with a section width of 6mm and a thickness of 2mm, wherein the volume content of carbon fiber is 65%. The pultrusion process is stable, the interlayer shear strength of the product is 76MPa, the glass transition temp...

Embodiment 2

[0033] The composition of high temperature resistant vinyl ester resin composition is as follows:

[0034] 75 parts of phenolic vinyl ester resin

[0035] Bisphenol A type vinyl ester resin 25 parts

[0036] Organic peroxide curing agent 1.2 parts

[0037] Among them, bis(4-tert-butylcyclohexyl ester) peroxydicarbonate

[0038] (trade name Perkadox-16): 0.3 parts

[0039] Tert-butyl peroxybenzoate (trade name Trigonox-C): 0.9 parts

[0040] Release agent INT-PS125 1 part

[0041] nano-SiO 2 Filling 1 part

[0042] After the above components are mixed and stirred evenly, pour into the dipping tank of the pultrusion equipment. The fiber reinforced material is T300-12K carbon fiber and glass fiber cloth wrapped in the outer layer of carbon fiber, and the product is a flat strip-shaped continuous sucker rod with a cross-section of 32mm×4.2mm, and the volume content of the fiber is 60%. The pultrusion process is stable, the interlaminar shear strength of the product is 78MP...

Embodiment 3

[0044] The composition of high temperature resistant vinyl ester resin composition is as follows:

[0045] 95 parts of phenolic vinyl ester resin

[0046] Bisphenol A type vinyl ester resin 5 parts

[0047] Organic peroxide curing agent 0.8 parts

[0048] Of which Perkadox-16: 0.2 parts

[0049] Trigonox-C: 0.6 parts

[0050] Release agent INT-PS125 2 parts

[0051] 300 mesh calcium carbonate filler 1 part

[0052] 2 parts of 300 mesh aluminum hydroxide filler

[0053] Active diluent MMA 2 parts

[0054] Inhibitor hydroquinone 0.005 parts

[0055] After the above components are mixed and stirred evenly, pour into the dipping tank of the pultrusion equipment. The fiber reinforced material is T300-12K carbon fiber and aramid fiber cloth coated on the outer layer of carbon fiber, and the product is a flat rod with a section of 32mm×4.2mm, and the volume content of the fiber is 55%. The pultrusion process is stable, the interlayer shear strength of the product is 79MPa, the...

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Abstract

A fibre reinforced vinylester-resin composition with high toughness, strength and high-temp resistance is prepared from the refractory vinylester-resin composition prepared from phenolic vinylester resin, biphenol-A vinylester resin, solidifying agent and additive, and the reinforcing fibres chosen from carbon fibres, glass fibres, aramide fibres and their mixture through pulling and extruding.

Description

technical field [0001] The invention relates to a high-temperature-resistant fiber-reinforced resin-based composite material, especially a fiber-reinforced vinyl ester resin composite material for pultrusion molding. Background technique [0002] Pultrusion composite materials are composed of various resins and high-performance fibers, and have been widely used in aerospace, infrastructure and industrial fields, such as continuous sucker rods prepared by pultrusion of carbon fibers and resins, which have high strength, light weight With the characteristics of high quality, fatigue resistance and corrosion resistance, it has become a new material for crude oil extraction in high water-cut oil wells, deep wells, ultra-deep wells and corrosion wells. However, as the depth of the oil well increases by 100m, the temperature of the formation will increase by 3°C. When the depth of the pump is 3500m, the temperature of the mixture of crude oil and water in the oil well will reach 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C70/06C08J5/06C08L63/10
Inventor 顾雪林杨小平常德友王成忠于运花李鹏
Owner 胜利油田孚瑞特石油装备有限责任公司
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