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A preparation method of ultra-light and high-rigidity polypropylene modified material

A modified material, polypropylene technology, applied in the field of preparation of ultra-light and high-rigid polypropylene modified materials, can solve the problems of high density, deformation, floating fibers, etc., achieve low shrinkage, high heat resistance, and solve the problem of high density Effect

Active Publication Date: 2018-12-14
句容市育达实业投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Modification of polypropylene through glass fiber can improve the strength performance of polypropylene, but there are still defects. For example, the density of glass fiber reinforced polypropylene is relatively high, and it is prone to floating fibers and deformation.

Method used

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  • A preparation method of ultra-light and high-rigidity polypropylene modified material
  • A preparation method of ultra-light and high-rigidity polypropylene modified material
  • A preparation method of ultra-light and high-rigidity polypropylene modified material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] An ultra-light and high-rigid polypropylene modified material, in parts by weight, the raw material composition is:

[0032]

[0033]

[0034] Among them, homopolypropylene is composed of YPJ-630H and YPJ-1215C in a mass ratio of 80:20;

[0035] The nano-inorganic material is prepared from talcum powder, glass microspheres and calcium carbonate in a mass ratio of 75:15:10.

[0036] The antioxidant is prepared from 1010 and DLTP at a mass ratio of 50:50;

[0037] The coupling agent is prepared from TMC-201 and KBM1003 at a mass ratio of 65:35;

[0038] The dispersant is SP-1082.

[0039] After weighing each raw material according to the formula, put it in a high-speed mixer for high-speed blending (mixing speed is 300 rpm) for 25-30 minutes, and then add it to a twin-screw extruder to prepare for extrusion granulation; through twin-screw extrusion The extruder is mixed with the above raw materials, and melted, blended, extruded and granulated at 200-230°C to obt...

Embodiment 2

[0048] Change the mass ratio of talcum powder, glass microspheres and calcium carbonate, all the other are the same as Example 1, the results are shown in Table 2.

[0049] Table 2

[0050]

[0051]

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Abstract

The invention discloses a preparation method for an ultralight high-rigidity polypropylene modified material.The preparation method comprises the steps that 1, raw materials include, by weight, 100 parts of homo-polypropylene, 15-25 parts of nano-inorganic material, 1-5 parts of antioxidant, 2-5 parts of coupling reagent and 1-5 parts of dispersing agent, and the nano-inorganic material is prepared by mixing talcum powder, calcium carbonate and glass beads, wherein the fineness of the talcum powder ranges from 3,500 mesh to 4,500 mesh, the fineness of calcium carbonate ranges from 1,000 mesh to 1,500 mesh, and the diameter of the glass beads ranges from 15 micrometers to 135 micrometers; 2, all the raw materials are weighed according to a formula, put in a mixer to be mixed for 25-30 minutes, added into a double-screw extruder and subjected to fusion mixing and extruding granulation at the temperature of 200-230 DEG C, and then the ultralight high-rigidity polypropylene modified material is obtained.The modified material prepared through the method has the advantages of high strength, high heat resistance and low weight.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of an ultra-light and high-rigidity polypropylene modified material. Background technique [0002] As one of the general plastic materials, polypropylene has excellent comprehensive performance, good chemical stability, good molding performance and relatively low price; but polypropylene has low strength, modulus, hardness, low temperature impact strength Poor, large molding shrinkage, easy aging and other shortcomings. Therefore, it is modified so that it can be adapted to the needs of the product. [0003] Modification of polypropylene by glass fiber can improve the strength performance of polypropylene, but there are still defects. For example, the density of glass fiber reinforced polypropylene is relatively high, which is prone to floating fibers and deformation. Contents of the invention [0004] Purpose of the invention: The p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K13/02C08K7/18C08K3/34C08K3/26B29C47/92B29C48/92
CPCB29C48/92B29C2948/92704C08K2201/003C08K2201/011C08L23/12C08L2201/08C08L2205/025C08K13/02C08K7/18C08K3/34C08K2003/265
Inventor 鲁平才赵钎戚全辉
Owner 句容市育达实业投资有限公司