Antiblocking agent masterbatch for plastic film and preparation method of antiblocking agent masterbatch

A technology of plastic film and opening agent, which is applied in the field of opening agent master batch for plastic film and its preparation, can solve the problems of reduced optical performance, poor bonding force, poor quality of plastic film, etc., to ensure transmittance and improve bonding force, reducing the effect of membrane rupture problems

Active Publication Date: 2019-01-11
宣城虹光新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the problems in the prior art, the purpose of the present invention is to provide a kind of anti-blocking agent masterbatch for plastic film, which solves the poor quality of plastic film caused by the poor bonding force between the inorganic particles and plastics in the existing anti-blocking agent masterbatch , and the problem of reducing the optical performance caused by reducing the use of anti-blocking agent masterbatch

Method used

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  • Antiblocking agent masterbatch for plastic film and preparation method of antiblocking agent masterbatch
  • Antiblocking agent masterbatch for plastic film and preparation method of antiblocking agent masterbatch

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preparation example Construction

[0027] The preparation method of the modified inorganic particles comprises: ultrasonically dispersing the inorganic particles and the compatibilizer in an organic solvent, recovering the organic solvent, and drying to obtain the inorganic particles coated with the compatibilizer.

[0028] In the present invention, by carrying out surface modification to the inorganic particles, the binding ability between the inorganic particles in the plastic film and the plastic is improved, so that the phenomenon of poor appearance caused by the shedding of the inorganic particles on the surface of the plastic film is reduced; especially The shedding of inorganic particles on the surface of some plastic films occurs during storage and transportation to the terminal, which brings difficulties to the quality inspection and interception of the manufacturer. Often, there is no problem in the detection after the production is completed, but it is only discovered when the terminal is used. series...

Embodiment 1

[0061] S1: Modification of inorganic particles

[0062] The silicon dioxide particles and the compatibilizer ABS-g-MAH (grafting rate ≥ 0.5%) are ultrasonically dispersed in acetone, the acetone is recovered and dried to obtain the compatibilizer-coated silicon dioxide particles. Among them, the mass ratio of silica particles, compatibilizer ABS-g-MAH (grafting rate ≥ 0.5%) and acetone is 1:0.07:19;

[0063] S2: Preparation of anti-blocking agent masterbatch

[0064] Add polyethylene terephthalate, modified silica particles and other additives into the twin-screw extruder through weight loss, and make the modified inorganic particles in the carrier resin through shearing and mixing of the screws. Disperse evenly to obtain a molten mixture, pressurize the molten mixture through a melt pump and filter through a filter to obtain a molten product, then pull the molten material into strands, cool it through a water tank, and then continuously pass it through a water eliminator and...

Embodiment 2

[0073] The polyester film that provides as embodiment 1, in the modified treatment of silicon dioxide particle, the mass ratio of silicon dioxide particle, compatibilizer ABS-g-MAH (grafting rate ≥ 0.5%) and acetone is changed to 1:0.07:18, with the rest unchanged, the polyester film was prepared, and the prepared polyester film was recorded as A2.

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Abstract

The invention belongs to the technical field of antiblocking agents and specifically relates to an antiblocking agent masterbatch for a plastic film and a preparation method of the antiblocking agentmasterbatch. The antiblocking agent masterbatch is prepared from the following raw materials: carrier resin, modified inorganic particles and other auxiliaries; and a preparation method of the modified inorganic particles comprises the steps: ultrasonically dispersing the inorganic particles and a compatilizer in an organic solvent, recovering the organic solvent, and carrying out drying to obtainthe inorganic particles coated with the compatilizer. In the invention, the inorganic particles are subjected to surface modification, so that the binding force between the inorganic particles and plastics is increased, and the phenomenon of poor appearance caused by the falling-off of the inorganic particles on the surface of a plastic film is reduced; and the phenomenon that the optical performance of the plastic film molded by stretching is reduced, and the transmittance of rays is guaranteed; and the problem of film breaking in a production process is reduced, and the sustainability of production is improved.

Description

technical field [0001] The invention belongs to the technical field of anti-blocking agents, and in particular relates to a master batch of anti-blocking agents for plastic films and a preparation method thereof. Background technique [0002] Anti-blocking agent, also known as slip agent and anti-blocking agent; it is often used in the production and preparation of plastic film products, which can effectively improve the opening performance of the film. During the preparation of plastic products, especially after the finished plastic film is rolled, the adjacent plastic films form a vacuum tight state, which is not easy to separate; in addition, after the plastic film is formed, there are a large number of exposed molecular chains on its surface. The closure of adjacent plastic films creates intertwining of macromolecular chains, making it difficult to open. By adding an anti-blocking agent, the surface of the plastic film is uneven to reduce the negative pressure between t...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K9/10C08K3/36C08K3/22C08K3/30C08K3/26C08J3/22
CPCC08J3/226C08J2367/02C08J2467/02C08K3/36C08K9/10C08K2003/2241C08K2003/265C08K2003/3045
Inventor 曹立军
Owner 宣城虹光新材料科技有限公司
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