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Silicone opening slipping agent master batch composition for plastic film and preparation method of silicone opening slipping agent master batch

A plastic film and slip agent technology, which is applied in the field of anti-opening agent, can solve the problems affecting film transparency, irregular particle shape, and affecting film appearance, so as to avoid the impact of processing performance, reduce friction coefficient, and good opening smooth effect Effect

Inactive Publication Date: 2019-05-03
JIANGSU SHENGYING NEW MATERIAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Since amide slip agents are usually small molecular organic substances, they continuously migrate and precipitate to the surface of the film to form white crystals, commonly known as "powdering", which not only affects the appearance of the film, but also further affects the processing properties of the film such as heat sealing and printing. , and even lead to contamination of the packaging
Traditional anti-blocking agents such as silicon dioxide and talcum powder have irregular particle shapes and low roundness, and the diffuse reflection of light added to the film is serious, thus affecting the transparency of the film

Method used

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  • Silicone opening slipping agent master batch composition for plastic film and preparation method of silicone opening slipping agent master batch
  • Silicone opening slipping agent master batch composition for plastic film and preparation method of silicone opening slipping agent master batch
  • Silicone opening slipping agent master batch composition for plastic film and preparation method of silicone opening slipping agent master batch

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Effect test

Embodiment 1

[0027] This embodiment relates to a preparation method of a silicone opening slip agent masterbatch composition for plastic films, which specifically includes the following steps:

[0028] 1. According to the weight percentage of each component, 88% of linear low-density polyethylene with a melt index of 2g / 10min, 5% of silicone powder, 5% of hollow glass microspheres, and 2% of polyethylene wax with a number average molecular weight of 3000 Ingredients;

[0029] 2. Add the above-mentioned linear low-density polyethylene, silicone powder, hollow glass microspheres, and polyethylene wax into the high-speed mixer, first stir at low speed for 3 minutes, then stir at high speed for 1 minute, and then send it into the twin-screw extruder for melt blending , extruding, cooling, drying, and pelletizing to obtain the masterbatch composition of the opening slip agent. Among them, the temperature of each zone of the twin-screw extruder is: from the feed section to the head: 120°C, 140°...

Embodiment 2

[0031] This embodiment relates to a preparation method of a plastic film silicone opening slip agent masterbatch composition, which specifically includes the following steps:

[0032] 1. According to the weight percentage of each component, it is 81% of linear low density polyethylene with a melt index of 10g / 10min, 8% of silicone powder, 8% of hollow glass microspheres, and 3% of polyethylene wax with a number average molecular weight of 3000 Ingredients;

[0033] 2. Add linear low-density polyethylene, silicone powder, hollow glass microspheres, and polyethylene wax into a high-speed mixer, first stir at a low speed for 3 minutes, then stir at a high speed for 1 minute, and then send them into a twin-screw extruder for melt blending, Extruding, cooling, drying, and pelletizing to obtain the composition of the opening slip agent masterbatch. The temperature of each zone of the twin-screw extruder is: from the feed section to the head: 125°C, 140°C, 155°C, 165°C, 165°C, 170°C...

Embodiment 3

[0035] This embodiment relates to a preparation method of a plastic film silicone opening slip agent masterbatch composition, which specifically includes the following steps:

[0036] 1. According to the weight percentage of each component, it is 75% of linear low density polyethylene with a melt index of 20g / 10min, 10% of silicone powder, 10% of hollow glass microspheres, and 5% of polyethylene wax with a number average molecular weight of 3000 Ingredients;

[0037] 2. Add linear low-density polyethylene, silicone powder, hollow glass microspheres, and polyethylene wax into a high-speed mixer, first stir at a low speed for 3 minutes, then stir at a high speed for 1 minute, and then send them into a twin-screw extruder for melt blending, Extruding, cooling, drying, and pelletizing to obtain the composition of the opening slip agent masterbatch. The temperature of each zone of the twin-screw extruder is: from the feed section to the head: 120°C, 145°C, 155°C, 155°C, 165°C, 170...

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Abstract

The invention discloses a silicone opening slipping agent master batch composition for a plastic film and a preparation method of the silicone opening slipping agent master batch. The silicone openingslipping agent master batch comprises the following components in percentage by weight: 75%-89% of carrier resin, 5-10% of silicone, 5-10% of a hollow glass microsphere opening agent and 1-5% of a dispersing agent. The silicone cannot migrate to the surface in a film product, so that compared with a conventional amide slipping agent, silicone opening slipping agent master batch composition does not have the problem that a slipping agent is accumulated on the surface of a thin film, so that influence of processing performance of the thin film is effectively avoided. When the silicone opening slipping agent master batch composition is used in cooperation with a hollow glass microsphere opening agent, a good opening slipping effect can be achieved for the thin film, and transparency of the thin film is not influenced.

Description

technical field [0001] The invention relates to the technical field of anti-blocking agents, in particular to a plastic film silicone anti-opening slip agent masterbatch composition and a preparation method thereof. Background technique [0002] Polyolefin resin blown film products are widely used in food packaging, medical treatment, agricultural production and other fields. In the process of film production, adhesion between film surfaces is easy to occur, which makes it difficult to separate and affects further production and application. The reason is that a vacuum is easily formed between the membrane surfaces, and the molecular chains on the two layers are entangled. Therefore, it is necessary to add an opening slippery agent during the processing. Anti-blocking agents are generally small inorganic particles such as talcum powder, silicon dioxide, etc. After the film is made, the small inorganic particles protrude from the surface of the film to form protrusions, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L83/04C08K7/28C08J3/22
Inventor 虞明东赵鹏飞
Owner JIANGSU SHENGYING NEW MATERIAL
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