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Polypropylene resin composition

A polypropylene resin and composition technology, applied in the field of polymer materials, can solve problems such as refractory degradation, and achieve the effect of fast degradation

Inactive Publication Date: 2014-09-24
陈昆
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, as people's awareness of environmental protection increases, the shortcomings of traditional polypropylene resins that are difficult to degrade become more and more obvious. A new type of polypropylene resin material that is degradable and easy to degrade is the direction that people are pursuing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] This polypropylene resin composition comprises the following steps:

[0017] A, put 2.0kg flax fiber into the solution that pH is 4, add 4.0kg glutaraldehyde to it, heat to 60 ℃, keep warm and immerse for 2 hours, obtain modified flax fiber, set aside;

[0018] B. Put 6.0kg polypropylene, 2.0kg calcium carbonate, 0.01kg ethylene-octene copolymer into the mixer, mix well, then add 0.1kg maleic anhydride, 0.01kg tert-butyl hydroperoxide, mix well ;

[0019] C. Add the modified flax fiber prepared in step A to the mixed material prepared in step B, heat to 180° C., and keep stirring for 1 hour to prepare.

[0020] The degradation rate of the polypropylene resin composition prepared in this example was 30% within 100 days.

Embodiment 2

[0022] This polypropylene resin composition comprises the following steps:

[0023] A, put 3.0kg flax fiber into the solution that pH is 1, add 2.0kg glutaraldehyde therein, heat to 80 ℃, keep warm and immerse for 3 hours, obtain modified flax fiber, set aside;

[0024] B. Put 8.0kg polypropylene, 1.0kg calcium carbonate, 0.005kg ethylene-octene copolymer into the mixer, mix well, then add 0.01kg maleic anhydride, 0.005kg tert-butyl hydroperoxide, mix well ;

[0025] C. Add the modified flax fiber prepared in step A to the mixed material prepared in step B, heat to 200° C., and keep stirring for 0.5 hours to prepare.

[0026] The 100-day degradation rate of the polypropylene resin composition prepared in this example was 32%.

Embodiment 3

[0028] This polypropylene resin composition comprises the following steps:

[0029] A. Putting 2.5kg of flax fiber into a solution with a pH of 2, adding 3.0kg of glutaraldehyde therein, heating to 70°C, and soaking for 2.5 hours to obtain the modified flax fiber, set aside;

[0030] B. Put 7.0kg polypropylene, 1.5kg calcium carbonate, 0.008kg ethylene-octene copolymer into the mixer, mix well, then add 0.05kg maleic anhydride, 0.008kg tert-butyl hydroperoxide, mix well ;

[0031] C. Add the modified flax fiber prepared in step A to the mixed material prepared in step B, heat to 190° C., and keep stirring for 0.8 hours to prepare.

[0032] The degradation rate of the polypropylene resin composition prepared in this example was 35% within 100 days.

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PUM

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Abstract

The invention discloses a polypropylene resin composition and belongs to the technical field of high molecular materials. The composition is prepared by the following steps: by using polypropylene, linen fibers, glutaraldehyde, tert-butyl hydroperoxide, maleic anhydride, calcium carbonate and a vinyl-octylene copolymer in a certain proportion as raw materials, first, putting the polypropylene, calcium carbonate and vinyl-octylene copolymer in a mixer to be uniformly mixed; then, adding maleic anhydride and tert-butyl hydroperoxide to be uniformly mixed; then, adding modified linen fibers, heating to 180-200 DEG C, insulating and stirring for 0.5-1 hour to obtain the polypropylene resin composition. The polypropylene resin composition provided by the invention has the advantages of degradability and easy degradation and is an environmental-friendly high molecular material.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, in particular to a polypropylene resin composition. Background technique [0002] Polypropylene resin has the advantages of high strength, good insulation, low water absorption, high heat distortion temperature, low density, and high crystallinity. At the same time, it can also be modified by filling, strengthening, blending, copolymerization, and crosslinking. to optimize its performance. Therefore, polypropylene resin is widely used in the automobile manufacturing industry, especially for the manufacture of automobile bumpers, instrument panels, door panels and other components. [0003] However, as people's awareness of environmental protection increases, the shortcomings of traditional polypropylene resins that are difficult to degrade become more and more obvious. A new type of degradable and easily degradable polypropylene resin material is the direction that people are pursuing....

Claims

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Application Information

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IPC IPC(8): C08L23/12C08L97/02C08K5/07C08K3/26C08K5/14
CPCC08L23/12C08L2201/06C08L2205/03C08L2205/16
Inventor 陈昆
Owner 陈昆