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A kind of polypropylene heterophasic copolymer resin with high rubber content that can be used for 3D printing and its preparation method and application

A technology of 3D printing and rubber content, applied in the field of polypropylene heterophasic copolymer resin, can solve rare problems, achieve excellent performance, expand application range, and superior performance

Active Publication Date: 2016-08-24
INST OF CHEM CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polymers currently used for 3D printing are basically single-component homopolymers or copolymers. For multi-component (mainly multi-phase, that is, two-phase or multi-phase incompatible) mixtures, 3D printing has not been reported much

Method used

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  • A kind of polypropylene heterophasic copolymer resin with high rubber content that can be used for 3D printing and its preparation method and application
  • A kind of polypropylene heterophasic copolymer resin with high rubber content that can be used for 3D printing and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] (1) Homopolymerization of propylene

[0083] In a 500ml dry autoclave, first add 50ml of dry n-hexane, then successively add 1ml of triethylaluminum with a concentration of 1.8mol / L, 20.0mg of the carrier-type Ziegler-Natta catalyst A prepared above, and then feed propylene gas, at 60°C, under 0.2MPa pressure for 15 minutes, to obtain polypropylene particles, and directly proceed to the next step of reaction.

[0084] (2) Ethylene / propylene / diene copolymerization

[0085] Vent the propylene gas in the above step (1), then add 3ml of 1,9-decadiene monomer, and then feed the ethylene / propylene mixed gas with a gas molar ratio of 1:1, and the pressure in the polymerization system is 0.2 MPa, the copolymerization is carried out in a hexane solvent system, the polymerization temperature is controlled at 60° C., and the copolymerization reaction takes 45 minutes. After the polymerization was completed, the gas pressure in the autoclave was released, and the polymer was coll...

Embodiment 2

[0088] (1) Homopolymerization of propylene

[0089] In a 500ml dry autoclave, first add 100ml of dry n-hexane, then successively add 1ml of triethylaluminum with a concentration of 1.8mol / L, 20.0mg of the carrier-type Ziegler-Natta catalyst A prepared above, and then feed propylene gas, at 60°C, under 0.2MPa pressure for 15 minutes, to obtain polypropylene particles, and directly proceed to the next step of reaction.

[0090] (2) Ethylene / propylene / diene copolymerization

[0091] Vent the propylene gas in the above step (1), then add 3ml of 1,9-decadiene monomer, and then feed the ethylene / propylene mixed gas with a gas molar ratio of 1:1, and the pressure in the polymerization system is 0.5 MPa, the copolymerization is carried out in a hexane solvent system, the polymerization temperature is controlled at 60° C., and the copolymerization reaction takes 45 minutes. After the polymerization was completed, the gas pressure in the autoclave was released, the polymer was collect...

Embodiment 3

[0094] (1) Homopolymerization of propylene

[0095] In a 500ml dry autoclave, first add 100ml of dry n-hexane, then add 1ml of triethylaluminum with a concentration of 1.8mol / L, 20.0mg of the carrier-type Ziegler-Natta catalyst B prepared above, and then feed propylene Gas, polymerize at 60°C and 0.2MPa for 10 minutes to obtain polypropylene particles, and proceed to the next step of reaction directly.

[0096] (2) Ethylene / propylene / diene copolymerization

[0097] Vent the propylene gas in the above step (1), then add 8ml of 1,9-decadiene monomer, and then feed the ethylene / propylene mixed gas with a gas molar ratio of 1:2, and the pressure in the polymerization system is 0.5 MPa, the copolymerization is carried out in a hexane solvent system, the polymerization temperature is controlled at 60° C., and the copolymerization reaction takes 45 minutes. After the polymerization was completed, the gas pressure in the autoclave was released, and the polymer was collected and wash...

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Abstract

The invention discloses a high-rubber polypropylene polyphase copolymer resin used for 3D printing, and a preparation method and an application thereof. The copolymer resin is composed of a propylene homopolymer and crosslinked ethylene-propylene-diolefin diolefin copolymer rubber, and is prepared through sequentially catalyzing propylene monomer homopolymerization and ethylene / propylene / diolefin monomer copolymerization by a catalyst containing a carrier type Ziegler-Natta catalyst. The content of rubber in the copolymer resin reaches above 70%, the obtained polymer product is particles with the particle diameter of 50-1500mum, and a heat stabilizer is added to make the resin form an high-impact-resistance and high-toughness product through 3D printing molding.

Description

technical field [0001] The invention relates to a polypropylene heterophasic copolymer resin with high rubber content that can be used for 3D printing and its preparation method and application, in particular to a propylene homopolymer and a propylene homopolymer that can be used for 3D printing and can be directly prepared in a polymerization kettle. High rubber content polypropylene heterophasic copolymer resin composed of cross-linked ethylene-propylene-diene copolymer rubber and its preparation method and application. Background technique [0002] Polypropylene is an indispensable synthetic material in our life, and it is also one of the most widely used resins with the fastest growing output. It has the advantages of low density, high melting point, good strength, and easy processing. In recent years, the calls for energy conservation, emission reduction and low-carbon economy have become increasingly louder, and high-performance polypropylene resins with a wide composi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L23/16C08F110/06C08F210/16C08F210/18
CPCD01F6/30
Inventor 董金勇牛慧秦亚伟王宁李春成符文鑫林学春马永梅孙文华徐坚
Owner INST OF CHEM CHINESE ACAD OF SCI
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