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Glass fibre/vinyl ester resin composite material with interface modification by nanometer SiO2 and preparation method thereof

A vinyl ester resin and glass fiber technology, which is applied in the field of nano-SiO2 interface modified glass fiber/vinyl ester resin composite material and its preparation, can solve the problems of poor strength and impact resistance of composite materials, and improve mechanical properties. performance, improve performance, improve the effect of mechanical properties

Inactive Publication Date: 2017-03-22
BAOYING COUNTY RUICAI ELECTRIC MATERIAL
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Patent No. CN 103740027 A patent: a glass fiber reinforced AES composite material, composed of the following components by weight percentage: AES resin 50-85%, glass fiber 5-30%, compatibilizer 3-8%, Toughening agent 5-15%, antioxidant 0.1%-1%, coupling agent 0.5-2%, lubricant 0.5-1%; above-mentioned glass fiber reinforced AES composite material, described AES resin melt flow rate should be 10-20g / 10min (200°C / 10kg), the glass fiber is alkali-free glass fiber, the compatibilizer is maleic anhydride-styrene random copolymer, and the toughening agent is EPDM Rubber (EPDM), the patent has good comprehensive properties and good rigidity, adding glass fiber can also increase the thermal deformation temperature of the composite material, expanding the application field of AES materials, but the strength and impact resistance of the composite material are not good

Method used

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  • Glass fibre/vinyl ester resin composite material with interface modification by nanometer SiO2 and preparation method thereof
  • Glass fibre/vinyl ester resin composite material with interface modification by nanometer SiO2 and preparation method thereof
  • Glass fibre/vinyl ester resin composite material with interface modification by nanometer SiO2 and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] 1) 0.20g nano-SiO 2 Add to 10mL of ethanol, then add 0.01g of KH-550, ultrasonic vibration for 20min to form a stable suspension.

[0040] 2) Soak 200g of glass fiber in 25mL of ethanol to clean the surface, spread it on the workbench after drying, spray nano-SiO 2 The alcohol suspension was sprayed onto the prepared glass fiber five times, and placed at room temperature until the ethanol was fully volatilized, and then cut according to the sample size for use.

[0041] 3) Take 200g of vinyl ester resin (A407-901) epoxy resin, add 3.5g of methyl ethyl ketone peroxide, 2.5g of N,N-dimethylformamide and 3.5g of cobalt naphthenate, and vacuumize and stir for 0.5h .

[0042] 4) with the nano-SiO that step 2) obtains 2 The modified glass fiber is put into the mold, and then the vinyl ester resin mixture prepared in step 3) is gradually added into the mold, and then cured at 120°C for one hour to obtain nano-SiO 2 Interface modified glass fiber / vinyl ester resin composite...

Embodiment 2

[0046] 1) 0.25g nano-SiO 2 Added to 10mL of ethanol, then added 0.01g of A-143, and ultrasonically oscillated for 20min to form a stable suspension.

[0047] 2) Soak 250g of glass fiber in 25mL of ethanol to clean the surface, spread it on the workbench after drying, spray nano-SiO 2 The alcohol suspension was sprayed onto the prepared glass fiber five times, and placed at room temperature until the ethanol was fully volatilized, and then cut according to the sample size for use.

[0048] 3) Take 300g of vinyl ester resin (A407-901) epoxy resin, add 9.0g of methyl ethyl ketone peroxide, 7.0g of N,N-dimethylformamide and 7.0g of cobalt naphthenate, and vacuumize and stir for 0.5h .

[0049] 4) with the nano-SiO that step 2) obtains 2 The modified glass fiber is put into the mold, and then the vinyl ester resin mixture prepared in step 3) is gradually added to the mold, and then cured at 100°C for one hour to obtain nano-SiO 2 Interface modified glass fiber / vinyl ester resin...

Embodiment 3

[0053] 1) 0.50g nano-SiO 2 Added to 10mL of ethanol, then added 0.005g of A-151, and ultrasonically oscillated for 20min to form a stable suspension.

[0054] 2) Soak 100g of glass fiber in 25mL of ethanol to clean the surface, spread it on the workbench after drying, spray nano-SiO 2 The alcohol suspension was sprayed onto the prepared glass fiber five times, and placed at room temperature until the ethanol was fully volatilized, and then cut according to the sample size for use.

[0055] 3) Take 120g of vinyl ester resin (A407-901) epoxy resin, add 3g of methyl ethyl ketone peroxide, 2g of N,N-dimethylformamide and 2g of cobalt naphthenate, and stir under vacuum for 0.5h.

[0056] 4) with the nano-SiO that step 2) obtains 2 The modified glass fiber is put into the mold, and then the vinyl ester resin mixture prepared in step 3) is gradually added to the mold, and then cured at 140°C for one hour to obtain nano-SiO 2 Interface modified glass fiber / vinyl ester resin composi...

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Abstract

The invention provides a glass fibre / vinyl ester resin composite material with interface modification by nanometer SiO2 and a preparation method thereof. The method comprises the following steps: (1) nanometer SiO2 and a silane coupling agent are dispersed into ethanol, supersonic wave oscillation is carried out for dispersion, stable nanometer SiO2 suspending liquid is formed for standby; (2) glass fibre is immersed with ethanol for cleaning the surface, the nanometer SiO2 suspending liquid is filled in a spray gun, the spray gun sprays the suspending liquid on the prepared glass fibre, the glass fibre is placed at a room temperature, after ethanol is fully volatilized, the nanometer SiO2 modified glass fibre is prepared for standby; (3) methylethyl ketone peroxide, N,N-dimethyl formamide, cobaltous naphthenate are added into vinyl ester resin, vacuum-pumping and uniform stirring are carried out, in order to obtain a vinyl ester resin mixture; (4) the nanometer SiO2 modified glass fibre obtained in the step (2) is placed in a die, the vinyl ester resin mixture prepared in the step (3) is gradually added into the die, and solidification is carried out. The preparation method is simple and has good effects.

Description

technical field [0001] The invention relates to a glass fiber / vinyl ester resin composite material and a preparation method thereof, in particular to a nano-SiO 2 Interface modified glass fiber / vinyl ester resin composite material and its preparation method. Background technique [0002] Glass fiber composite material is currently one of the composite materials with the largest output and widest application, and has constituted the main body of composite materials. Glass fiber unsaturated polyester composite material is composed of unsaturated polyester (such as vinyl ester resin, etc.) and glass fiber and its products. It is widely used in various fields such as national defense, aviation, shipbuilding, automobiles, tourism, and construction. In practical applications, glass fiber composite processing is often used as a load-bearing component, so it is required to have high strength and good mechanical and physical properties. However, because the surface of the fiber is ...

Claims

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Application Information

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IPC IPC(8): C08L63/10C08K9/02C08K9/06C08K7/14
Inventor 方鹏飞胥元顺
Owner BAOYING COUNTY RUICAI ELECTRIC MATERIAL
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