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Preparation method and use of nano-SiO2-modified glass fiber film-forming agent emulsion

A glass fiber and film-forming agent technology, which is applied in the field of glass fiber film-forming agent emulsion preparation, can solve the problems of cumbersome production process, environmental pollution, less research on organic-inorganic hybrid glass fiber sizing agents, etc. The effect of uniform particle size distribution and easy implementation

Inactive Publication Date: 2014-12-03
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN 1830861A invented a combination of organic and inorganic surface coating and ultrasonic impregnation applied to basalt fiber, which can improve the tensile strength and temperature resistance of the fiber, but its production process is cumbersome, and organic solvent is used for coating in the process. polluted environment
The patent CN 101704529A discloses a preparation method for preparing amphiphilic nano-SiO2 powder, and uses this modified powder to prepare a stable Pickering emulsion, which does not appear to have obvious demulsification after 3 months of storage, but is only applicable to Oily small molecules such as oleic acid and xylene have not been used in polymer resin emulsification
In the existing literature, there are few studies on organic-inorganic hybrid glass fiber sizing

Method used

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  • Preparation method and use of nano-SiO2-modified glass fiber film-forming agent emulsion
  • Preparation method and use of nano-SiO2-modified glass fiber film-forming agent emulsion
  • Preparation method and use of nano-SiO2-modified glass fiber film-forming agent emulsion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Appropriate amount of nano-SiO 2 The powder was preheated at 100°C for 4h. According to nano-SiO 2 Particles: ethanol: deionized water mass ratio is 1:3:20, weigh nano-SiO 2 Particles, ethanol, deionized water. Weigh the silane coupling agent KH-550, its dosage accounted for 2 4% of the mass, adjust PH=5.0 with glacial acetic acid, ultrasonically disperse at 70°C, 60KHz, 200W for 120min, filter with suction, and wash with ethanol and deionized water 3 times to remove excess unreacted grafted coupling agent. The reaction was dried at 50° C. for 8 hours, and cooled for later use.

[0034] Weigh the nano-SiO modified by KH-550 2 Particles are ultrasonically dispersed in the diluent methyl ethyl ketone, ultrasonic conditions: frequency 70KHz, power 200W, ultrasonic dispersion time 15min. Add the main slurry phenolic epoxy vinyl ester resin V-158 and mixed emulsifier in sequence, and mix evenly under high-speed stirring conditions. Among them, modified nano-SiO 2 Pow...

Embodiment 2

[0056] nano-SiO 2 Powder modification method is the same as Example 1.

[0057] Weigh the nano-SiO modified by KH-550 2 Particles are ultrasonically dispersed in diluent styrene, ultrasonic conditions: frequency 70KHz, power 200W, ultrasonic dispersion time 15min. Add the main slurry unsaturated polyester resin V-196 and mixed emulsifier in sequence, and mix evenly under high-speed stirring conditions. Among them, modified nano-SiO 2 Powder: Emulsifier: The mass ratio of the main slurry is 0.5:8:100, the mass ratio of the diluent styrene to the main slurry is 10:100, and the mixed emulsifier is obtained by mixing SDS and T-80 in a ratio of 25:75 . Stir at a constant speed of 8000r / min for 20min at a high speed, and stir and mix evenly. Slowly add deionized water drop by drop until the mass fraction of the total solid content is 20%, control the rotation speed at 8000r / min, and continue stirring for 30min to obtain a milky white film-forming agent emulsion.

[0058] This ...

Embodiment 3

[0060] nano-SiO 2 Powder modification method is the same as Example 1.

[0061] Weigh the nano-SiO modified by KH-550 2 Particles are ultrasonically dispersed in the diluent n-butanol, ultrasonic conditions: frequency 70KHz, power 200W, ultrasonic dispersion time 15min. Add the main slurry phenolic epoxy vinyl ester resin V-158 and mixed emulsifier in sequence, and mix evenly under high-speed stirring conditions. Among them, modified nano-SiO 2 Powder: Emulsifier: The mass ratio of the main slurry is 3:4:100, the mass ratio of the diluent n-butanol to the main slurry is 20:100, and the mixed emulsifier is a mixture of SDS and EL-20 in a ratio of 50:50 get. Stir at a constant speed of 11000r / min for 20min at a high speed, and stir and mix evenly. Slowly add deionized water drop by drop until the mass fraction of the total solid content is 40%, control the rotation speed at 11000r / min, and continue stirring for 40min to obtain a milky white film-forming agent emulsion.

[...

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Abstract

The invention discloses a preparation method and use of a nano-SiO2-modified glass fiber film-forming agent emulsion. The nano-SiO2-modified glass fiber film-forming agent emulsion comprises main slurry, an emulsifier, modified nano-SiO2 particles, a diluent and deionized water. Based on the mass of the main slurry, emulsifier mass content is in a range of 4-8%, diluent mass content is in a range of 10-50%, nano-SiO2 particle mass content is in a range of 0.5-3% and a mass ratio of the deionized water to the main slurry is 60-90: 10-40. The nano-SiO2-modified glass fiber film-forming agent emulsion obtained by the preparation method has the advantages of less emulsifier use amount, uniform particle size distribution, good temperature resistance, acid and alkali resistance and storage stability. After an impregnating agent prepared from the nano-SiO2-modified glass fiber film-forming agent emulsion coats glass fibers, uniformly-distributed nano-SiO2 particle layers are formed on surfaces of the glass fibers so that glass fiber wear resistance and breaking strength are obviously improved. The highest glass fiber-reinforced composite material interface interlaminar shearing strength is 31.74MPa.

Description

technical field [0001] The invention relates to a preparation method and application of a glass fiber film-forming agent emulsion, in particular to an emulsion containing nano-SiO 2 Preparation method and application of particle glass fiber film-forming agent emulsion. Background technique [0002] Glass fiber has a series of excellent properties such as high temperature resistance, light specific gravity, good insulation and small extension. It is the most widely used and most important reinforcing material in composite materials. It has been widely used in various fields such as construction, chemical industry and cutting-edge science. [0003] In glass fiber production, sizing is an essential surface treatment agent. Its function is mainly manifested in two aspects, one is to protect the glass fiber, and the other is to endow the glass fiber with the compatibility of the reinforced material, so that the glass fiber composite material has higher strength and good appearan...

Claims

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Application Information

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IPC IPC(8): C03C25/42
Inventor 葛曷一王冬至陈娟周新瑞柳华实李顺
Owner UNIV OF JINAN
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