Production method of polypropylene cooling masterbatch

A technology of cooling masterbatch and production method, applied in the direction of single-component polyolefin artificial filament, etc., can solve problems affecting product quality, equipment life and production efficiency, improving strength, lack of melting stability, and deteriorating production and labor environment , achieve the effects of shortening the molding cycle, high melt index and reducing energy consumption
CN101798422AInactive Publication Date: 2010-08-11郭学阳
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
郭学阳
Publication Date
2010-08-11
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a production method of polypropylene cooling masterbatch, including the following steps: (1) mixing: the following components by parts by weight are mixed for 10-20 minutes: 50-90 parts of polypropylene resin, 0.5-9.5 parts of dispersing agent, 0.1-0.6 part of surface modifier, 0.1-2.7 parts of lubricant and 0.2-0.8 part of liquidity regulator, and then the following components by parts by weight are sequentially added: 0.1-0.9 part of light stabilizer, 0.1-1.6 parts of antioxidant and 0.2-7 parts of molecular weight regulator, and mixing is carried out for 5-15 minutes; (2) pelletizing: the mixed material is subject to melt extrusion at 130-230 DEG C and then grain-sized dicing is carried out. The invention adopts compound peroxide as molecular weight regulator and adopts compound antioxidant, compound dispersing agent, compound light stabilizer and compound lubricant, and the produced polypropylene cooling masterbatch has the advantages of high initiator content, good dispersity and obvious cooling effect and modification effect.
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Description

technical field

[0001] The invention relates to the deep processing of polypropylene, in particular to a production method of polypropylene cooling masterbatch. Background technique

[0002] Polypropylene (PP) cooling masterbatch is made of polypropylene as the main raw material, adding molecular weight regulators, antioxidants, dispersants and other additives. obtained resin pellets. The use of cooling masterbatch in the processing of polypropylene resin can adjust the molecular weight of polypropylene, that is, adjust the melt index of polypropylene, and adjust the molecular weight distribution of polypropylene to make the molecular weight distribution of polypropylene narrower and increase the fluidity of polypropylene. Polypropylene cooling masterbatch is mainly used to reduce the processing temperature in the production of polypropylene spinning and plastic products, especially in the process of PP long and short filament spinning. At the same time, it is also widely ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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