Cold-resistant high-toughness co-polypropylene plastic and preparation method thereof

A copolymerized polypropylene and high-toughness technology is applied in the field of cold-resistant and high-toughness copolymerized polypropylene plastics and its preparation. , Improve the effect of toughening and cold resistance

Pending Publication Date: 2022-07-22
SHANGHAI SHENGGUANG SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first object of the present invention is to overcome the unmodified polypropylene can not meet the throwing training equipment in low temperature and normal temperature environment after throwing recycling requirements, the second object of the invention is to solve the problem of unmodified polypropylene in the use of ultrasonic welding process There is the problem of unreliable welding. The purpose of the third invention is to avoid the serious shrinkage of the appearance of the throwing training equipment after injection molding, and to provide a new type of cold-resistant and high-toughness copolymerized polypropylene plastic and its preparation method

Method used

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  • Cold-resistant high-toughness co-polypropylene plastic and preparation method thereof
  • Cold-resistant high-toughness co-polypropylene plastic and preparation method thereof
  • Cold-resistant high-toughness co-polypropylene plastic and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0029] The preparation raw material of the cold-resistant and high-toughness copolymerized polypropylene plastic consists of the following components:

[0030]

[0031] The preparation method of cold-resistant and high-toughness copolymerized polypropylene plastic includes the following steps and is performed in sequence,

[0032] Step S1, using a mixer to mix copolymerized polypropylene, linear low density polyethylene, EPDM, SEBS, sorbitol, and magnesium oxide activator to obtain a raw material mixture;

[0033] In step S2, the raw material mixture is kneaded and extruded by a twin-screw mixing extruder to obtain plastic wire drawing: the temperature of the twin-screw mixing extruder from the feeding port to the discharging port is as follows: the temperature in the first zone is 330°C, and the temperature in the second zone is 330°C. The zone temperature is 330°C, and the three zone temperature is 330°C.

[0034] Step S3, cooling the plastic wire drawing by water coolin...

Embodiment 2

[0053] The preparation raw material of the cold-resistant and high-toughness copolymerized polypropylene plastic consists of the following components:

[0054]

[0055]The preparation method of cold-resistant and high-toughness copolymerized polypropylene plastic includes the following steps and is performed in sequence,

[0056] Step S1, using a mixer to mix copolymerized polypropylene, linear low density polyethylene, EPDM, SEBS, sorbitol, and magnesium oxide activator to obtain a raw material mixture;

[0057] In step S2, the raw material mixture is kneaded and extruded by a twin-screw mixing extruder to obtain plastic wire drawing: the temperature of the twin-screw mixing extruder from the feeding port to the discharging port is as follows: the temperature in the first zone is 330°C, and the temperature in the second zone is 330°C. The zone temperature is 330°C, and the three zone temperature is 330°C.

[0058] Step S3, cooling the plastic wire drawing by water cooling...

Embodiment 3

[0074] The preparation raw material of the cold-resistant and high-toughness copolymerized polypropylene plastic consists of the following components:

[0075]

[0076] The preparation method of cold-resistant and high-toughness copolymerized polypropylene plastic includes the following steps and is performed in sequence,

[0077] Step S1, using a mixer to mix copolymerized polypropylene, linear low density polyethylene, EPDM, SEBS, sorbitol, and magnesium oxide activator to obtain a raw material mixture;

[0078] In step S2, the raw material mixture is kneaded and extruded by a twin-screw mixing extruder to obtain plastic wire drawing: the temperature of the twin-screw mixing extruder from the feeding port to the discharging port is as follows: the temperature in the first zone is 330°C, and the temperature in the second zone is 330°C. The zone temperature is 330°C, and the three zone temperature is 330°C.

[0079] Step S3, cooling the plastic wire drawing by water coolin...

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Abstract

The invention discloses a cold-resistant high-toughness co-polypropylene plastic and a preparation method thereof. The cold-resistant high-toughness co-polypropylene plastic is prepared from the following raw materials in percentage by weight: 60-70% of co-polypropylene; 10-12% of linear low density polyethylene; 10 to 15% of EPDM (Ethylene-Propylene- 5 to 10% of SEBS; 1-3% of sorbitol; and 1-3% of a magnesium oxide active agent; the sum of the components is 100%. The polypropylene plastic has the beneficial effects that after the polypropylene plastic is modified, the toughening and cold-resistant characteristics of the polypropylene plastic are improved, the polypropylene plastic is used for producing and processing the throwing training equipment, and the throwing training equipment can be prevented from cracking after falling to the concrete ground for more than 1000 times at a high altitude of 10 meters in a normal-temperature environment and a low-temperature environment.

Description

technical field [0001] The invention relates to a cold-resistant and high-toughness copolymerized polypropylene plastic and a preparation method thereof. Background technique [0002] The Chinese utility model CN208671814U announced "a detachable sound-simulating grenade", which includes a casing, which is composed of a casing, a counterweight and a screw plug. The shell is integrally formed, and the conventional rubber vulcanization process is used. The disadvantages are: the production efficiency of the rubber vulcanization process is low, and the appearance color is mostly black, which cannot produce brighter colors. At present, some manufacturers use polypropylene injection molding to form the above-mentioned shell. The disadvantages are: 1. The overall structure of the shell is thick, and the appearance of the product after injection molding will experience serious shrinkage; 2. Unmodified polypropylene cannot meet the requirements of throwing Requirements for the recy...

Claims

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Application Information

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IPC IPC(8): C08L23/14C08L23/08C08L23/16C08L53/02C08K5/053C08K3/22B29B9/06
CPCC08L23/14B29B9/06C08K2003/222C08L23/0815C08L23/16C08L53/025C08K5/053C08K3/22
Inventor 张惠清
Owner SHANGHAI SHENGGUANG SCI & TECH
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