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Reinforced thermoplastic polymer resin composite material and preparation method thereof

A thermoplastic polymer and a thermoplastic-enhancing technology, which is applied in the field of composite materials of reinforced thermoplastic polymer resin and its preparation, can solve the problem of low processing fusion of polar mineral coal gangue powder, reduced material mechanical properties and thermal stability, Thermoplastic polymers have problems such as high processing viscosity, and achieve the effect of improving better compatibility, improving ecological environment protection, and improving compatibility

Active Publication Date: 2021-06-29
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the inventors of the present application have found in the actual application process that thermoplastic polymers generally have high processing viscosity, poor fluidity, and poor processing fusion with polar mineral coal gangue powder, which will cause defects in material mechanical properties and thermal stability.

Method used

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  • Reinforced thermoplastic polymer resin composite material and preparation method thereof
  • Reinforced thermoplastic polymer resin composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Coal gangue powder preparation: crush the coal gangue, use jet mill, grind to 1250 mesh, dry and set aside;

[0035] Coal gangue powder pretreatment: Add 80 parts of coal gangue powder modified by mass ratio 1.0wt% 3-chloropropyltriethoxysilane coupling agent into the mixer, heat mix at 150r / min for 10 minutes at high speed, and then Mix at a low speed of 60r / min for 5 minutes, and leave the mixed gangue powder to mature for 24 hours. Put the mature coal gangue powder and 40 parts of acrylonitrile-butadiene-styrene copolymer into the mixer, mix at a high speed of 150r / min for 5 minutes, and then put the mixture into the twin-screw extruder to melt Extrusion and granulation, so that the toughening agent forms a coating on the gangue powder to form a gangue / toughening agent capsule structure. Extrusion granulator conditions are shown in Table 1:

[0036] Table 1 Extruder Processing Parameters

[0037] temperature zone Barrel 1 Barrel 2 Barrel 3 nose 1 ...

Embodiment 2

[0043]Coal gangue powder pretreatment: add 100 parts of coal gangue powder modified by mass ratio of 0.5wt% 3-chloropropyltriethoxysilane coupling agent to the mixer, heat mix at high speed of 150r / min for 10 minutes, and then Mix at a low speed of 60r / min for 5 minutes, and leave the mixed gangue powder to mature for 24 hours. Put the mature coal gangue powder and 20 parts of acrylonitrile-butadiene-styrene copolymer into the mixer, mix at a high speed of 150r / min for 5 minutes, and then put the mixture into the twin-screw extruder to melt Extrusion and granulation, so that the toughening agent forms a coating on the gangue powder to form a gangue / toughening agent capsule structure. Extrusion granulator conditions are as shown in Table 1;

[0044] Mixing: Using a high-speed mixer, 100 parts of coal gangue particles coated with the aforementioned toughening agent, 100 parts of PVC resin powder, 5 parts of basalt fiber (8mm), 10 parts of high-viscosity methyl methacrylate with...

Embodiment 3

[0047] Coal gangue powder pretreatment: Add 60 parts of coal gangue powder modified by mass ratio 2.5wt% 3-chloropropyltriethoxysilane coupling agent into the mixer, heat mix at 150r / min for 10 minutes at high speed, and then Mix at a low speed of 60r / min for 5 minutes, and leave the mixed gangue powder to mature for 24 hours. Put the mature coal gangue powder and 30 parts of acrylonitrile-butadiene-styrene copolymer into the mixer, mix at a high speed of 150r / min for 5 minutes, and then put the mixture into the twin-screw extruder to melt Extrusion and granulation, so that the toughening agent forms a coating on the gangue powder to form a gangue / toughening agent capsule structure. Extrusion granulator conditions are as shown in Table 1;

[0048] Mixing: Using a high-speed mixer, 100 parts of coal gangue particles coated with the aforementioned toughening agent, 100 parts of PVC resin powder, 5 parts of basalt fiber (10mm), 5 parts of high-viscosity methyl methacrylate with ...

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Abstract

The invention discloses a reinforced thermoplastic polymer resin composite material and a preparation method thereof. The preparation method comprises the following steps: crushing coal gangue, grinding, drying, modifying with a coupling agent, coating with a toughening agent, and granulating to obtain coal gangue particles; mixing and stirring thermoplastic polymer resin powder, basalt fibers, the coal gangue particles and an auxiliary material; and extruding by using a double-screw extruder to obtain a finished product. According to the invention, coal gangue powder is modified through a coupling agent, then a toughening agent is used for coating, extrusion and granulation, and then thermoplastic resin powder, basalt fibers and an auxiliary material are mixed, so that the compatibility of the coal gangue powder and the thermoplastic polymer-based composite material can be greatly improved, the problem that the toughness and the strength are reduced due to coal gangue filling is weakened, and the defects that the thermoplastic polymer is high in processing viscosity, poor in flowability and low in processing integration with polar mineral coal gangue powder so as to cause the reduced mechanical property and the reduced thermal stability of the material are overcome.

Description

technical field [0001] The invention relates to the field of thermoplastic polymer composite materials, in particular to a reinforced thermoplastic polymer resin composite material and a preparation method thereof. Background technique [0002] Coal gangue is a large amount of industrial solid waste produced during mining operations and beneficiation operations in the coal industry, mainly containing SiO 2 、Al 2 o 3 , CaO, MgO, etc. The mineral composition is mainly kaolinite, quartz, mica and dolomite, etc., and its physical and chemical properties are stable. my country is a big country of coal production and consumption, and the output of coal gangue is huge, accounting for about 10-15wt% of the coal industry. However, due to the large variety of coal and various types of coal gangue, the composition and mineral texture are very complex, and the utilization rate is low. At present, it is only widely used in the field of concrete and mineral filling. A large amount of ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L23/06C08L23/12C08K13/08C08K11/00C08K9/10C08K9/06C08K7/10
CPCC08L27/06C08L23/06C08L23/12C08K2201/004C08L2201/08C08L2205/035C08K13/08C08K11/005C08K9/10C08K9/06C08K7/10
Inventor 张以河丁冲张娜张有鹏邸祥云李益
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)