A composite material of reinforced thermoplastic polymer resin and its preparation method

A technology for enhancing thermoplasticity and composite materials, which is applied in the field of composite materials for reinforced thermoplastic polymer resins and its preparation, and can solve the problems of low processing fusion of polar mineral coal gangue powder, reduction of material mechanical properties and thermal stability, and thermoplasticity. Problems such as high viscosity of polymer processing, to achieve the effect of improving better compatibility, improving ecological environment protection, and improving compatibility

Active Publication Date: 2022-06-28
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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  • A composite material of reinforced thermoplastic polymer resin and its preparation method
  • A composite material of reinforced thermoplastic polymer resin and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0035] Coal gangue powder pretreatment: add 80 parts of modified coal gangue powder with a mass ratio of 1.0wt% 3-chloropropyltriethoxysilane coupling agent to the mixer, mix at a high speed of 150r / min for 10 minutes, and then add Mix the materials at a low speed of 60 r / min for 5 minutes, and put the mixed coal gangue powder on hold for 24 hours. Add the matured 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 make the toughening agent coat the coal gangue powder to form a coal 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 ...

Embodiment 2

[0043]Coal gangue powder pretreatment: add 0.5wt% 3-chloropropyl triethoxysilane coupling agent to the mixer to modify 100 parts of coal gangue powder, mix at a high speed of 150r / min for 10 minutes, and then add Mix the materials at a low speed of 60 r / min for 5 minutes, and put the mixed coal gangue powder on hold for 24 hours. Add the matured 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 make the toughening agent coat the coal gangue powder to form a coal gangue / toughening agent capsule structure. Extrusion granulator conditions are shown in Table 1;

[0044] Mixing: Using a high-speed mixer, mix 100 parts of coal gangue particles, 100 parts of PVC resin powder, 5 parts of basalt fiber (8mm), 10 parts of high-viscosity methyl methacrylate with a viscosity of 10.8, 6 parts of calcium zinc stab...

Embodiment 3

[0047] Coal gangue powder pretreatment: add 2.5wt% 3-chloropropyl triethoxysilane coupling agent modified 60 parts of coal gangue powder into the mixer, mix at a high speed of 150r / min for 10 minutes, and then add Mix the materials at a low speed of 60 r / min for 5 minutes, and put the mixed coal gangue powder on hold for 24 hours. Add the matured 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 make the toughening agent coat the coal gangue powder to form a coal gangue / toughening agent capsule structure. Extrusion granulator conditions are shown in Table 1;

[0048] Mixing: Using a high-speed mixer, mix 100 parts of coal gangue particles, 100 parts of PVC resin powder, 5 parts of basalt fiber (10mm), 5 parts of high-viscosity methyl methacrylate with a viscosity of 10.2, 5 parts of high-viscosity me...

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Abstract

The invention discloses a composite material of reinforced thermoplastic polymer resin and a preparation method thereof, comprising the following steps: crushing coal gangue, pulverizing, drying, modifying with a coupling agent, coating with a toughening agent, and granulating to obtain coal Gangue granules; mixing and stirring thermoplastic polymer resin powder, basalt fiber, coal gangue granules and auxiliary materials; extruding with a twin-screw extruder to obtain a finished product. The present invention modifies coal gangue powder with a coupling agent, then coats it with a toughening agent, extrudes and granulates it, and then mixes thermoplastic resin powder, basalt fiber and auxiliary materials, which can greatly improve the bond between coal gangue powder and thermoplastic polymer matrix. Compatibility of composite materials, weakening the problem of toughness and strength reduction caused by coal gangue filling, and improving thermoplastic polymer processing viscosity, poor fluidity, and poor fusion with polar mineral gangue powder processing, resulting in material mechanics Defects that reduce performance and thermal stability.

Description

technical field [0001] The invention relates to the field of thermoplastic polymer composite materials, in particular to a composite material reinforced with thermoplastic polymer resin and a preparation method thereof. Background technique [0002] Coal gangue is a kind of bulk industrial solid waste produced in the process of mining and beneficiation 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 the physical and chemical properties are stable. my country is a big country in 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 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 coal gangue is naturally...

Claims

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Application Information

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Patent Type & Authority Patents(China)
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)
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