Preparation process of polypropylene material

A polypropylene material and preparation process technology, applied in the field of plastics, can solve the problems of poor impact resistance, poor cold resistance, affecting the use of battery shells, etc., and achieve good mechanical strength and improve the effect of low temperature impact resistance.

Inactive Publication Date: 2020-11-03
王 兰兰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the existing raw materials used as battery shells, there is still the defect of poor low-temperature impact resistance, and the existing polypropylene material will be brittle at minus 35 degrees, and its cold resistance is poor, which will easily affect the normal use of battery shells. Technical problem, the present invention proposes a kind of preparation technology of polypropylene material

Method used

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Examples

Experimental program
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Effect test

preparation example Construction

[0023] A preparation process of a polypropylene material, step 1, raw material preparation, consisting of the following raw materials in mass percentages, 60-75% of propylene raw material, 2-6% of epoxy soybean oil, 5-16% of powdered nitrile rubber, plasticized Agent DOS0.5-1%, plasticizer DOA0.5-1%, butadiene 6-9%, modifier 1-2%, stabilizer 1-4%, catalyst 1-2%;

[0024] Step 2, heating, sending the propylene raw material in the step 1 into a mixing agitator for heating, so that it changes from a gaseous state to a liquid state;

[0025] Step 3, blending and modifying, the powdered nitrile rubber raw material is sent into the mixing agitator and mixed with the propylene raw material after the gaseous state is changed into liquid state in the step 2, and the plasticizer DOS, the plasticizer DOA, and the ring are added in sequence. Oxygenated soybean oil, butadiene, modifier, stabilizer, catalyst, and then carry out esterification reaction and polymerization reaction in sequence...

Embodiment 1

[0038] Step 1, raw material preparation, is made up of the raw material of following mass percentage, propylene raw material 66.9%, epoxidized soybean oil 5%, powdered nitrile rubber 14%, plasticizer DOS0.8%, plasticizer DOA0.8%, butadiene Diene 8%, modifier 1.5%, stabilizer 1.5%, catalyst 1.5%;

[0039] Step 2, heating, sending the propylene raw material in the step 1 into a mixing agitator for heating, so that it changes from a gaseous state to a liquid state;

[0040] Step 3, blending and modifying, the powdered nitrile rubber raw material is sent into the mixing agitator and mixed with the propylene raw material after the gaseous state is changed into liquid state in the step 2, and the plasticizer DOS, the plasticizer DOA, and the ring are added in sequence. Oxygenated soybean oil, butadiene, modifier, stabilizer, catalyst, and then carry out esterification reaction and polymerization reaction in sequence;

[0041] By setting the blending modification, the mixture of pow...

Embodiment 2

[0053] Step 1, raw material preparation, is made up of the raw material of following mass percentage, propylene raw material 70%, epoxidized soybean oil 3%, powdered nitrile rubber 15%, plasticizer DOS0.7%, plasticizer DOA0.7%, butadiene Diene 6%, modifier 1.6%, stabilizer 1.5%, catalyst 1.5%;

[0054] Step 2, heating, sending the propylene raw material in the step 1 into a mixing agitator for heating, so that it changes from a gaseous state to a liquid state;

[0055] Step 3, blending and modifying, the powdered nitrile rubber raw material is sent into the mixing agitator and mixed with the propylene raw material after the gaseous state is changed into liquid state in the step 2, and the plasticizer DOS, the plasticizer DOA, and the ring are added in sequence. Oxygenated soybean oil, butadiene, modifier, stabilizer, catalyst, and then carry out esterification reaction and polymerization reaction in sequence;

[0056] By setting the blending modification, the mixture of powde...

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Abstract

The invention belongs to the technical field of plastics, and particularly relates to a preparation process of a polypropylene material, which comprises the following steps: 1, preparing the followingraw materials in percentage by mass: 60-75% of propylene raw material, 2-6% of epoxidized soybean oil, 5-16% of powdered acrylonitrile-butadiene rubber, 0.5-1% of plasticizer DOS, 0.5-1% of plasticizer DOA, 6-9% of butadiene, 1-2% of modifier, 1-4% of stabilizer and 1-2% of a catalyst. In the preparation process of the polypropylene material, by setting blending modification, a mixture generatedby blending powdered nitrile rubber, a plasticizer DOS and a plasticizer DOA is used as a reinforcing body, so that the low-temperature impact resistance of the polypropylene material is greatly improved, and the polypropylene material can work even at the temperature of -45 DEG C and is free of being embrittled; in addition, by means of epoxidized soybean oil, the prepared polypropylene materialcan be endowed with good mechanical strength, weather resistance and electrical property, and is non-toxic.

Description

technical field [0001] The invention relates to the technical field of plastics, in particular to a preparation process of a polypropylene material. Background technique [0002] Polypropylene is a thermoplastic resin obtained by polymerizing propylene. It is a white waxy material with a transparent and light appearance. [0003] Because some mechanical parts need to work in a low temperature environment of minus 38 degrees for a long time, and the existing polypropylene as a raw material for mechanical parts has the defect of unstable mechanical properties and physical and chemical properties. If it is used as a raw material for battery shells, it also has poor low-temperature impact resistance. However, the existing polypropylene material will become brittle at minus 35 degrees, and its cold resistance is poor, which will easily affect the normal use of the battery case. [0004] Therefore, a preparation process of polypropylene material is proposed. Contents of the inv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/10C08L9/02C08L91/00C08L51/04C08K5/11B29B9/06H05B6/10
CPCB29B9/06C08L23/10C08L2205/035H05B6/10C08L9/02C08L91/00C08L51/04C08K5/11
Inventor 王兰兰
Owner 王 兰兰
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