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Modified polypropylene plastic and preparation method thereof

A technology of polypropylene plastic and isotactic polypropylene, which is applied in the field of plastic materials and can solve problems such as poor toughness and anti-aging performance

Active Publication Date: 2017-09-15
深圳市磐汩新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a modified impact-resistant polypropylene plastic material, which has obvious advantages in impact resistance and other properties compared with ordinary polypropylene plastics, and has the advantages of simple preparation and high production efficiency, and can quickly solve the problem of traditional polypropylene plastics. Defects of poor toughness and aging resistance of acrylic plastics

Method used

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  • Modified polypropylene plastic and preparation method thereof
  • Modified polypropylene plastic and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0019] Embodiment 1 Preparation of isotactic polypropylene / β-cyclodextrin inclusion compound

[0020] Dissolve 0.02mol of isotactic polypropylene in 800ml of 1,2,4-trichlorobenzene, stir at 120°C under nitrogen atmosphere until clear, and take another 0.02mol of β-cyclodextrin and dissolve it in 80ml of dimethyl sulfoxide , the above-mentioned dimethyl sulfoxide solution was heated to 120° C. and then slowly added dropwise to the polypropylene solution. After the dropwise addition was completed, stirring was continued at 120° C. for 4 hours. After the reaction, the reaction solution was cooled to room temperature and continued to stir for 24 hours, and the reaction solution was filtered to obtain a precipitate. After the precipitate was washed with hot 1,2,4-trichlorobenzene solution, water and acetone in sequence, the washed precipitate was in Vacuum-dry at room temperature for 24 hours to obtain β-cyclodextrin inclusion compound wrapped with polypropylene.

Embodiment 2

[0021] Example 2 Preparation of isotactic polypropylene / hydroxypropyl-β-cyclodextrin inclusion compound

[0022] Dissolve 0.02mol of isotactic polypropylene in 800ml of 1,2,4-trichlorobenzene, stir at 120°C under a nitrogen atmosphere until clear, and dissolve another 0.02mol of hydroxypropyl-β-cyclodextrin in 80ml of dichlorobenzene In methyl sulfoxide, the above-mentioned dimethyl sulfoxide solution was heated to 120°C and then slowly added dropwise to the polypropylene solution. After the dropwise addition was completed, stirring was continued at 120°C for 4 hours. After the reaction, the reaction solution was cooled to room temperature and continued to stir for 24 hours, and the reaction solution was filtered to obtain a precipitate. After the precipitate was washed with hot 1,2,4-trichlorobenzene solution, water and acetone in sequence, the washed precipitate was in After vacuum drying at room temperature for 24 hours, the inclusion compound of hydroxypropyl-β-cyclodextri...

Embodiment 3

[0023] The preparation of embodiment 3 modified polypropylene PP1

[0024] 100 parts by weight of isotactic polypropylene and 0.2 parts by weight of the β-cyclodextrin inclusion compound prepared in Example 1 were stirred and mixed uniformly in a mixer, then extruded and pelletized at 185°C; after the pellets were dried, the Injection molding at a temperature of 200°C to obtain modified polypropylene PP1.

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Abstract

The invention relates to a modified polypropylene plastic and a preparation method thereof. Raw materials of the modified polypropylene plastic comprise isotatic polypropylene and a composite nucleating agent; the composite nucleating agent consists of an inclusion complex of cyclodextrin and a derivative thereof and a synergist, and the synergist is suberate. Compared with a common polypropylene plastic, the modified polypropylene plastic has obvious advantages on properties such as impact resistance, and meanwhile has the advantages of simplicity in preparation, high production efficiency and the like.

Description

technical field [0001] The invention relates to a plastic material, in particular to a modified polypropylene plastic material. Background technique [0002] Polypropylene is a thermoplastic resin material with excellent comprehensive properties. Its raw materials are rich in sources and easy to modify, so it is widely used in various fields of production and life. However, polypropylene also has some shortcomings, such as poor cold resistance, low temperature brittleness, large shrinkage, poor creep resistance, poor dimensional stability of products, and easy warping deformation. Adding nucleating agent is an effective way to improve the performance of polypropylene. [0003] Polyolefin nucleating agent is a kind of polyolefin nucleating agent that can shorten the molding cycle and improve the transparency, surface gloss, tensile strength, rigidity, thermal New functional additives for physical and mechanical properties such as deformation temperature, impact resistance, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L5/16C08K5/11C08J3/00
Inventor 陈炬史京兵李云全
Owner 深圳市磐汩新材料有限公司
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