Production technology of polyethylene anti-blocking agent master batch composition

A production process and a technology for an opening agent, which is applied in the field of production technology of a polyethylene opening agent master batch composition, can solve problems such as poor opening performance, and achieve the effects of good opening performance, low friction coefficient and solving the problem of dispersibility.

Inactive Publication Date: 2019-06-04
锦州英诺威科技服务有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the embodiment of the present invention provides a preparation process of a polyethylene anti-blocking agent masterbatch composition to solve the problem of poor product opening performance in the anti-blocking agent masterbatch composition in the prior art

Method used

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  • Production technology of polyethylene anti-blocking agent master batch composition

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Embodiment 1

[0026] The polyethylene anti-blocking agent masterbatch composition of the present embodiment comprises polyethylene and anti-blocking agent, wherein, polyethylene: high-density polyethylene powder, melt index is 2g / 10min (test condition is 210 ℃, 2.16kg); : Silica with a fineness of 0.5 microns.

[0027] The manufacturing process includes the following steps:

[0028] 1) Under the protection of nitrogen, the polyethylene is crushed, and the crushing temperature is -35°C;

[0029] 2) The crushed material obtained in step 1) is passed through a sieve at a temperature of -5 to 0° C., and the part on the sieve is set aside for use, and the particle size of the sieve is 300 mesh;

[0030] 3) The part on the sieve obtained in step 2) and the opening agent are added to a high-speed disperser for mixing. The speed of the high-speed disperser is 1800 rpm, and the time is 35 minutes to obtain a raw material mixture. In terms of weight percentage, the raw material The mixture consists...

Embodiment 2

[0033] The polyethylene blocking agent masterbatch composition of the present embodiment comprises polyethylene and blocking agent, wherein, polyethylene: linear polyethylene pellet, melt index is 4g / 10min (test condition is 210 ℃, 2.16kg); Blocking agent: Magnesium aluminum hydrotalcite with a fineness of 0.2 microns.

[0034] The manufacturing process includes the following steps:

[0035] 1) Under the protection of nitrogen, the polyethylene is crushed, and the crushing temperature is -40°C;

[0036] 2) The crushed material obtained in step 1) is passed through a sieve at a temperature of -10 to -5°C, and the part on the sieve is set aside for use, and the particle size of the sieve is 450 mesh;

[0037] 3) The part on the sieve obtained in step 2) and the opening agent are added to a high-speed disperser for mixing. The speed of the high-speed disperser is 2500 rpm, and the time is 30 minutes to obtain a raw material mixture. In terms of weight percentage, the raw materia...

Embodiment 3

[0040] The polyethylene anti-blocking agent masterbatch composition of the present embodiment comprises polyethylene and anti-blocking agent, wherein, polyethylene: low-density polyethylene powder, melt index is 8g / 10min (test condition is 210 ℃, 2.16kg); : Diatomaceous earth with a fineness of 0.5 microns.

[0041] The manufacturing process includes the following steps:

[0042] 1) Under the protection of nitrogen, the polyethylene is crushed, and the crushing temperature is -30°C;

[0043] 2) The crushed material obtained in step 1) is passed through a sieve at a temperature of 0° C., and the part on the sieve is set aside for use, and the particle size of the sieve is 450 mesh;

[0044] 3) The part on the sieve obtained in step 2) and the opening agent are added to a high-speed disperser for mixing. The speed of the high-speed disperser is 2200 rpm, and the time is 35 minutes to obtain a raw material mixture. In terms of weight percentage, the raw material The mixture con...

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Abstract

The embodiment of the invention discloses a production technology of a polyethylene anti-blocking agent master batch composition and relates to the technical field of polyethylene production. The technology comprises the following steps: low-temperature crushing treatment of polyethylene; screen mesh; high-speed dispersion of a part on the screen mesh and an anti-blocking agent; melt blending by atwin-screw extruder, extrusion, cooling, blow-drying and grain-sized dicing to obtain the polyethylene anti-blocking agent master batch composition. Raw materials except the anti-blocking agent successively undergo low-temperature crushing, sieving and high-speed mixing to obtain fully-dispersed anti-blocking agent inorganic primary particles. Through the method, inorganic primary particles are effectively prevented from being agglomerated into large granular inorganic particles. In comparison with an anti-blocking agent master batch composition prepared by a traditional process, the invention has the following beneficial effect: under the condition of equal addition amount, the prepared film product has better opening performance and lower friction coefficient, and mechanical propertiesof the film product are improved and its haze is reduced.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of polyethylene production, in particular to a preparation process of a polyethylene anti-blocking agent masterbatch composition. Background technique [0002] In recent years, domestic polyolefin production capacity and demand have continued to grow. Polyolefin films are widely used in food packaging, pharmaceutical packaging, stationery packaging and agricultural film packaging. The polymers are entangled with each other, and the film is easy to stick and difficult to open. In order to prevent this phenomenon, an anti-blocking agent or an anti-blocking agent in the form of masterbatches is usually added in the polyethylene film production process. The principle is to form many fine and hard protrusions on the surface of the film, so that the external air can easily enter between the two films, and avoid the formation of a vacuum between the two films that are bonded together, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/08C08K3/36C08K3/26C08K7/26C08J3/22
Inventor 朱学亮田军委苏美南刘洋
Owner 锦州英诺威科技服务有限公司
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