High-strength glass fiber composite material

A glass fiber and composite material technology, applied in the coating and other directions, can solve the problems of reducing the limiting oxygen index, limiting the scope of application, poor thermal conductivity, etc., and achieve the effect of suppressing the flame retardant phenomenon, expanding the scope of application, and improving the thermal conductivity.

Pending Publication Date: 2022-03-15
裴广华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to its excellent performance and easy industrialization, polypropylene is widely used nowadays, but its thermal conductivity is poor, which greatly limits its application range. When using it, we usually add graphene to improve the polypropylene. Thermal conductivity, while adding glass fiber to toughen, makes the prepared composite material have better thermal conductivity and mechanical properties, but after glass fiber is added to polypropylene, the limiting oxygen index of polypropylene is greatly reduced, which greatly limits our use

Method used

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  • High-strength glass fiber composite material
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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] First prepare raw materials, weigh polypropylene, graphene, color masterbatch, light stabilizer, compatibilizer, polyethylene glycol, polyphosphate amine, melamine, antioxidant, polyvinyl alcohol, glycerol, tributyl phosphate, Organic montmorillonite, glass fiber and carbon fiber, spare;

[0053] Then prepare the matrix material, take polypropylene, compatibilizer, glass fiber, color masterbatch and light stabilizer, mix in a high-speed mixer for 10 minutes, mix well and then put it into a twin-screw extruder, and melt it with the help of ultrasonic equipment Blending, the ultrasonic frequency is 15KHz, the temperature of the twin-screw extruder is 190°C, extruded, cooled and granulated to obtain material A; then take material A, carbon fiber and graphene, and put them into the mixer for mixing, mixing The temperature is 160°C, the mixing time is 10min, the screw speed is 35-45r / min, and then put into the twin-screw extruder, melted and blended with the assistance of ul...

Embodiment 2

[0058] First prepare raw materials, weigh polypropylene, graphene, color masterbatch, light stabilizer, compatibilizer, polyethylene glycol, polyphosphate amine, melamine, antioxidant, polyvinyl alcohol, glycerol, tributyl phosphate, Organic montmorillonite, glass fiber and carbon fiber, spare;

[0059] Then prepare the matrix material, take polypropylene, compatibilizer, glass fiber, color masterbatch and light stabilizer, put it into a high-speed mixer and mix it for 15 minutes, mix it evenly and then put it into a twin-screw extruder, and melt it with the help of ultrasonic equipment Blending, the ultrasonic frequency is 20KHz, the temperature of the twin-screw extruder is 200°C, extruded, cooled and granulated to obtain material A; then take material A, carbon fiber and graphene, and put them into the mixer for mixing, mixing The temperature is 170°C, the mixing time is 13min, the screw speed is 40r / min, and then put into the twin-screw extruder, melted and blended with th...

Embodiment 3

[0064] First prepare raw materials, weigh polypropylene, graphene, color masterbatch, light stabilizer, compatibilizer, polyethylene glycol, polyphosphate amine, melamine, antioxidant, polyvinyl alcohol, glycerol, tributyl phosphate, Organic montmorillonite, glass fiber and carbon fiber, spare;

[0065] Then prepare the matrix material, take polypropylene, compatibilizer, glass fiber, color masterbatch and light stabilizer, put it into a high-speed mixer and mix it for 20 minutes, mix it evenly and then put it into a twin-screw extruder, and melt it with the help of ultrasonic equipment Blending, the ultrasonic frequency is 25KHz, the temperature of the twin-screw extruder is 210°C, extruded, cooled and granulated to obtain material A; then take material A, carbon fiber and graphene, and put them into the mixer for mixing, mixing The temperature is 180°C, the mixing time is 15min, the screw speed is 45r / min, and then put into the twin-screw extruder, melted and blended with th...

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Abstract

The invention discloses a high-strength glass fiber composite material, existing heat-conducting polymer composite materials mostly adopt polyamide, polyphenylene sulfide and the like as resin matrixes, the resin matrixes are high in processing cost, poor in performance and not easy to form, and relatively speaking, the heat-conducting composite material with polypropylene as the resin matrix is lower in cost, and the heat-conducting composite material has good heat-conducting performance. Meanwhile, the polypropylene resin is easy to process and form, so that the polypropylene resin becomes the key point of researching the heat-conducting composite material. The polypropylene resin is low in heat conductivity coefficient and cannot be widely applied, so that the heat conductivity coefficient of the polypropylene resin is improved by adding graphene at present. The high-strength glass fiber composite material is reasonable in formula design and optimized in process parameters, preparation of the high-strength glass fiber composite material is achieved, the flame retardant phenomenon of the composite material is inhibited, the heat-conducting property of the composite material is improved, and the high-strength glass fiber composite material is wider in application range and has high practicability.

Description

technical field [0001] The invention relates to the field of glass fiber composite materials, in particular to a high-strength glass fiber composite material. Background technique [0002] Glass fiber, an inorganic non-metallic material with excellent performance, has the advantages of good insulation, strong heat resistance, good corrosion resistance, and high mechanical strength, but its disadvantages are brittleness and poor wear resistance; glass fiber is usually used in Reinforcement materials in composite materials, electrical insulation materials and thermal insulation materials, circuit substrates and other fields. [0003] Polypropylene, a semi-crystalline thermoplastic, has high impact resistance, strong mechanical properties, and resistance to various organic solvents and acid and alkali corrosion. It is widely used in the industry and is one of the common polymer materials. one. [0004] Due to its excellent performance and easy industrialization, polypropylene...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): C08L23/12C08L51/06C08L71/02C08K7/06C08K7/14C08K3/32C08K5/3492C08J7/048C08J7/04
CPCC08L23/12C08J7/048C08J7/0427C08K2003/323C08L2201/02C08J2323/12C08J2429/04C08L51/06C08L71/02C08K7/06C08K7/14C08K3/32C08K5/34922
Inventor裴广华
Owner裴广华