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A functional polyolefin solid degradation agent

A technology of functional polyolefin and degrading agent, applied in the field of degrading agent, can solve the problems of flammability, unstable melt index, affecting product quality stability, etc.

Active Publication Date: 2021-09-14
DALIAN XINGHUI CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the dispersion is uneven, it may cause the melt index of the product to be unstable and poor in uniformity, which will affect the stability of continuous production and product quality. The local excessive degradation caused by uneven dispersion will cause the product to produce odor. Its high chemical activity makes it highly dangerous during transportation, storage and use, and it is extremely flammable or even explosive

Method used

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  • A functional polyolefin solid degradation agent
  • A functional polyolefin solid degradation agent
  • A functional polyolefin solid degradation agent

Examples

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Embodiment 1

[0037] A preparation method of a functional polyolefin solid degradation agent, the preparation method is: by weight, 70 parts of polypropylene, 10 parts of peroxide, 20 parts of antioxidant, 5 parts of slippery agent / antistatic agent and 5 parts of acid scavenger are extruded and granulated in an extruder to obtain cylindrical functional polyolefin solid degradation agent particles, the diameter of the bottom surface of the cylinder is 2-4mm, and the height of the cylinder is 2-4mm.

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Abstract

The invention relates to a functional polyolefin solid degradation agent, which belongs to the technical field of degradation agents. The functional polyolefin solid degradation agent of the present invention, by weight, is made up of following components: polypropylene 30-70 parts, peroxide 5-20 parts, antioxidant 10-30 parts, smooth agent / 5-15 parts of antistatic agent, 5-15 parts of acid scavenger; Wherein: described peroxide is di-tert-amyl peroxide, 2,5-dimethyl-2,5 bis(tert-butyl peroxide base) at least one of hexane and dicumyl peroxide. The high melting point polypropylene product produced by using the functional polyolefin solid degradation agent of the invention has a narrow molecular weight distribution, and at the same time, has excellent oxidation resistance. At 200°C, the oxidation induction period of the product is greater than 8 minutes.

Description

technical field [0001] The invention relates to a functional polyolefin solid degradation agent, which belongs to the technical field of degradation agents. Background technique [0002] High-quality polypropylene fibers require polypropylene products to have a high melt index and a narrow molecular weight distribution. Usually, the production of polypropylene products that meet this requirement requires a degradation method, that is, the production of polypropylene products with a narrow molecular weight distribution and a high melt index by adding a degradation agent during the extrusion and granulation of polypropylene products with a wide molecular weight and low melt index . [0003] In the high melting point polypropylene process produced by the degradation method, liquid organic peroxides are commonly used as degradation agents. Due to the high concentration and small amount of liquid peroxide added, it is difficult to disperse the degradation agent uniformly in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08L53/00C08K5/00C08K5/14C08K5/3492C08K5/13C08K5/526C08K5/20C08K5/098C08J3/22
CPCC08J3/226C08J2323/12C08J2353/00C08J2423/12C08K5/00C08K5/098C08K5/13C08K5/14C08K5/20C08K5/34924C08K5/526C08K2201/017
Inventor 赵立阳任国辉姜晋良吴宪
Owner DALIAN XINGHUI CHEM
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