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Filling agglomerate for polypropylene wiredrawing and its preparation method

A technology for filling master batch and polypropylene, applied in the field of master batch and its preparation, can solve the problems of reducing cost and excessive mechanical properties, and achieve the effect of reducing cost, improving low temperature resistance and excellent ozone resistance

Active Publication Date: 2007-05-23
上海心尔新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the mechanical properties of polypropylene wire drawing drop too much after using the filler masterbatch, and disclose a filler masterbatch for polypropylene wire drawing, which can not only maintain the mechanical properties of polypropylene wire drawing, but also greatly reduce the cost

Method used

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  • Filling agglomerate for polypropylene wiredrawing and its preparation method

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Embodiment Construction

[0014] According to accompanying drawing, the selection of process circuit of the present invention:

[0015] There are mainly internal mixer method, reactor method and extruder granulation method to manufacture plastic masterbatch in the world today. According to the actual situation in China, the present invention selects twin-screw extruder granulation method. Its advantages are: easy processing, convenient management, high production efficiency, no pollution to the environment, etc.

[0016] The processing condition of filler masterbatch for polypropylene wire drawing of the present invention:

[0017] 1. Stirring mixer: heating range 0~200℃;

[0018] 2. Co-rotating twin-screw granulator; specification: φ75×36D

[0019] 1 heating

[0020] Screw speed: 5-120 rpm; granulator speed: 30-60 rpm; strand pelletizing.

[0021]

[0022]

[0023]

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PUM

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Abstract

The invention relates to a filling masterbatch used for polypropylene wire-drawing and its preparation method. The said masterbatch includes (weight parts): CaCO3 25~50, and superfine talc (SFT) 5~30, homopolymerized PP 17.5~25, dual EPDM 5~10, ethylene-vinyl acetate copolymer wax 1.5~6, stearic acid 1~4, and zinc stearate 1~2, wherein the average particle size of CaCO3 is 5~10 micron and the average size of SFT is 6-10 micron. The said method comprises: mixing CaCO3 and SFT in a stirring mixer at 100degreeC-130degreeC, adding ethylene-vinyl acetate copolymer wax and mixing 3~5 minutes, respectively adding stearic acid, zinc stearate, dual EPDM, and homopolymerized PP, stirring for 3 min to obtain the pre-mixture, placing the pre-mixture into a cocurrent twin-screw granulation machine, granulating and pelleting, cooling and sifting, separating, and packaging to obtain the final product. The prepared filling masterbatch has good mechanical properties, dispersion, and high economy.

Description

1. Technical field: [0001] The invention relates to a master batch and a preparation method thereof, in particular to a filling master batch for polypropylene wire drawing and a preparation method thereof. 2. Background technology: [0002] The plastic woven bag is made of polypropylene resin as the main raw material, which is melted and extruded by a screw and cooled to obtain a nascent film, and then the nascent film is cut into a certain width of nascent flat yarn, and the nascent flat yarn is heat-drawn, heat-set, rolled Winding to make a flat yarn with a certain width and thickness, and then cut the flat yarn into a semi-finished product after being woven by a circular loom, and the semi-finished product is made into a finished woven bag after printing, sewing and other processes. [0003] Under the background of rising oil prices in the world, the price of polypropylene resin has skyrocketed, and affected by the relationship between supply and demand in the market, pol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K5/09C08K3/36C08K3/26C08L23/08C08L23/16
Inventor 王梓刚
Owner 上海心尔新材料科技股份有限公司
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