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A kind of degradable composite reinforced polypropylene composition and its preparation method

A polypropylene composition and composite reinforcement technology are applied in the field of degradable composite reinforced polypropylene composition and its preparation, which can solve the problems of poor interface interaction, complicated operation, and no advantages, and improve rigidity and impact resistance. Effect

Active Publication Date: 2022-05-10
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the composite material simply added with bamboo fiber, because of its poor interface with the polymer parts, so its performance can not be fully reflected, and the simple use of coupling agent to treat the bamboo fiber, the operation is complicated and the surface modification efficiency is relatively low. Low
Patent No. CN 102952337 uses a coupling agent to treat bamboo fiber and apply it to polypropylene modification. The performance of the final material is poor, and it does not reflect its advantages over other synthetic inorganic fibers.

Method used

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  • A kind of degradable composite reinforced polypropylene composition and its preparation method
  • A kind of degradable composite reinforced polypropylene composition and its preparation method
  • A kind of degradable composite reinforced polypropylene composition and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Take raw materials by components and proportioning ratio (parts by weight) in Table 1;

[0030] (2) Mix each raw material in a high mixer for 15 minutes and mix evenly, extrude and granulate the mixed blend through a twin-screw extruder to obtain a composition, and the temperature of each zone of the extruder is from the feeding section to the machine head The temperature is 170°C, 175°C, 180°C, 180°C, 185°C, 190°C, 190°C, 195°C, 195°C, 200°C, the length-to-diameter ratio of the extrusion screw is 65, and the rotation speed of the extrusion screw is 400 rpm minute. The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 2

[0032] (1) Take raw materials by components and proportioning ratio (parts by weight) in Table 1;

[0033] (2) Mix each raw material in a high mixer for 10 minutes to mix evenly, extrude and granulate the mixed blend through a twin-screw extruder to obtain a composition, and the temperature of each zone of the extruder is from the feeding section to the machine head The temperature is 170°C, 170°C, 180°C, 180°C, 185°C, 185°C, 185°C, 195°C, 195°C, 200°C, the length-to-diameter ratio of the extrusion screw is 65, and the rotation speed of the extrusion screw is 400 rpm minute. The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

Embodiment 3

[0035] (1) Take raw materials by components and proportioning ratio (parts by weight) in Table 1;

[0036] (2) Mix each raw material in a high mixer for 5 minutes and mix evenly, extrude and granulate the mixed blend through a twin-screw extruder to obtain a composition, and the temperature of each zone of the extruder is from the feeding section to the machine head The temperature is 165°C, 170°C, 175°C, 185°C, 190°C, 190°C, 190°C, 190°C, 190°C, 195°C, the length-to-diameter ratio of the extrusion screw is 65, and the rotation speed of the extrusion screw is 400 rpm minute. The prepared mixture was subjected to a performance test, and the test results are shown in Table 2.

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Abstract

The invention discloses a degradable composite reinforced polypropylene composition and a preparation method thereof. Parts of hydroxyapatite, 0.2 parts of coupling agent, 3-5 parts of plasticizer, and 0.5 parts of antioxidant are mixed, extruded and granulated. In the present invention, the polypropylene material is modified by using surface acetylated bamboo fiber and hydroxyapatite and adding an interface coupling agent, and the rigidity and impact resistance of the obtained polypropylene combination are improved; the bamboo original used in the present invention The fiber itself has a degradable function, and at the same time, the degradable polymer PBTA is added to the matrix material and filled with highly biocompatible hydroxyapatite, so that the final polypropylene composition has a degradable function.

Description

technical field [0001] The invention relates to the technical field of polymer composite materials, in particular to a degradable composite reinforced polypropylene composition and a preparation method thereof. Background technique [0002] Due to the rising demand for new technologies and new technologies, the performance requirements for polymer materials are also getting higher and higher. In more and more fields, polymer-based composite materials are constantly replacing other materials, so their usage is increasing year by year. Among them, fiber-reinforced composite materials have become the most widely used type of composite materials due to their high strength, high temperature resistance and corrosion resistance. However, the existing fiber bodies are more or less difficult to recycle, and the production process is more polluted. question. [0003] Bamboo fiber is a fiber extracted from bamboo. Its density is low, but its mechanical properties are very high, and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L67/02C08L1/02C08L91/00C08K13/02C08K3/32C08K5/10C08K5/11C08K5/134C08K5/526C08K5/372
CPCC08L23/12C08L2201/06C08L2205/035C08L2205/16C08K2003/325C08L67/02C08L1/02C08L91/00C08K13/02C08K3/32C08K5/10C08K5/11C08K5/1345C08K5/526C08K5/372
Inventor 杨桂生赵鑫姚晨光
Owner HEFEI GENIUS NEW MATERIALS
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