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Composition containing polypropylene homopolymer, polypropylene material and preparation method and application of polypropylene homopolymer material

A technology of polypropylene homopolymer and composition, which is applied in the field of polyolefin materials, can solve the problems of poor gloss and optical performance, fast corona attenuation, and not easy to corona, etc., and achieve good optical performance and improved corona performance , The effect of reducing processing energy consumption

Pending Publication Date: 2021-10-26
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] When ordinary homopolypropylene formed CPP films produced by Ziegler-Natta catalysts are used for high-end products in the fields of electronic packaging, food packaging, cosmetic packaging, etc., there are problems such as poor gloss and optical properties, and slightly low sanitation. , there are also the problems of not being easy to corona and fast decay of corona

Method used

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  • Composition containing polypropylene homopolymer, polypropylene material and preparation method and application of polypropylene homopolymer material
  • Composition containing polypropylene homopolymer, polypropylene material and preparation method and application of polypropylene homopolymer material
  • Composition containing polypropylene homopolymer, polypropylene material and preparation method and application of polypropylene homopolymer material

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0041] In the formula (1), two m is the same, and Ti, Zr or HF;

[0042] Each X is the same, and is fluorine, chlorine or bromine;

[0043] Rim 1 R 2 R 3 R 4 R 7 R 8 R 9 R 11 Each independently h, substituted or unsubstituted C 1 -C 4 Alkyl, substituted or unsubstituted C 2 -C 4 Alkenyl, substituted or unsubstituted C 7 -C 20 Aralkyl, substituted or unsubstituted C 6 -C 20 Aryl;

[0044] Rim 1 R 2 R 3 R 4 R 7 R 8 R 9 R 11 The substituents existing in the present are independently selected from C. 1 -C 4 At least one of the alkyl group;

[0045] Rim 12 R 13 Each is independently H, methyl or ethyl;

[0046] Rim 5 Phenyl;

[0047] Rim 6 R 10 All are hydrogen.

specific Embodiment approach 2

[0048] In the formula (1), two m is the same, and Ti, Zr or HF;

[0049] Each X is the same, and it is chlorine;

[0050] Rim 1 R 11 Both are methyl;

[0051] Rim 2 R 3 R 4 R 6 R 7 R 8 R 9 R 10 Both H;

[0052] Rim 5 Phenyl;

[0053] Rim 12 R 13 Each is independently H, methyl or ethyl.

specific Embodiment approach 3

[0054] In the formula (1), two m is the same, and Ti, Zr or HF;

[0055] Each X is the same, and it is chlorine;

[0056] Rim 1 R 11 Both are methyl;

[0057] Rim 2 R 3 R 4 R 6 R 7 R 8 R 9 R 10 Both H;

[0058] Rim 5 Phenyl;

[0059] Rim 12 R 13 All are methyl.

[0060] In order to achieve a low crystallinity of homopolymer, a better effect of low melting point, preferably, the polypropylene homopolymer exists 2,1-insert. This 2,1-insert can pass the nuclear magnetic detection.

[0061] Preferably, the melting temperature of the polypropylene homopolymer is less than or equal to 155 ° C, more preferably, the melting temperature of the polypropylene homopolymer is less than or equal to 151 ° C.

[0062] Preferably, the melt mass flow rate (230 ° C, 2.16 kg) of the polypropylene homopolymer is 4-10 g / 10 min; more preferably, the melt mass flow rate of the polypropylene homopolymer (230 ° C) 2.16kg) is 6-9 g / 10 min.

[0063] In a preferred embodiment, the content of the antioxida...

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Abstract

The invention relates to the field of polyolefin materials, and discloses a composition containing a polypropylene homopolymer, a polypropylene homopolymer material, and a preparation method and application of the polypropylene homopolymer material. The composition containing the polypropylene homopolymer contains the polypropylene homopolymer and an antioxidant, and the composition also optionally contains an acid acceptor; and the polypropylene homopolymer is prepared and obtained through catalysis of a metallocene catalyst. The polypropylene homopolymer material provided by the invention is obviously improved in the aspects of glossiness, optical performance, hygiene, corona performance and the like.

Description

Technical field [0001] The present invention relates to the field of polyolefin materials, and in particular, a composition comprising a polypropylene homopolymer, a method of preparing a polypropylene homopolymer material, and a polypropylene homopolymer obtained by the method Application of the material, the polypropylene homopolymer material in the polypropylene cast film. Background technique [0002] The polypropylene casting film (CPP) is a non-stretchable, non-directional flat extrusion film produced by melt casting. Compared with the blow molding film, it is characterized by high production speed, high yield, film transparency, gloss, thickness, and good thermal sealing property, oil resistance, steamed, scratch resistance and packaging machinery. Good applicability, while being flattered, subsequent processes such as printing, composite, etc. Materials and metallization base films, etc. [0003] PP is a non-polar polymer, which does not contain a polar group, so the surf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08F110/06C08F4/6592C08J5/18
CPCC08L23/12C08J5/18C08F110/06C08J2323/12C08F4/65925
Inventor 杜建强蒋洁王宇超冯伟罗华林王梦飞李沂真
Owner CHINA PETROLEUM & CHEM CORP
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