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Polyethylene masterbatch with pumice powder as opening agent and preparation method thereof

A technology of pumice powder and anti-blocking agent, which is applied in the field of polyethylene, can solve the problems of different application effects and fields, and achieve the effects of low cost, environmentally friendly materials, and excellent opening properties

Active Publication Date: 2018-09-21
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent only uses the porosity characteristics of pumice, which is different from the application effect and field of the present invention

Method used

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  • Polyethylene masterbatch with pumice powder as opening agent and preparation method thereof
  • Polyethylene masterbatch with pumice powder as opening agent and preparation method thereof
  • Polyethylene masterbatch with pumice powder as opening agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Polyethylene masterbatch S1 is made of the following components:

[0027]

[0028]

[0029] Preparation of polyethylene masterbatch:

[0030] (1) Pumice powder treatment: Add coupling agent and macromolecular light stabilizer into a round bottom flask, add chloroform, stir with a magnetic stirrer for 10 minutes to dissolve and mix evenly. Add pumice powder to it, heat and reflux in a water bath or an oil bath and stir magnetically for 30 minutes to make the coupling agent fully react with the pumice powder, then remove the solvent with a rotary evaporator, and dry the remaining solid particles in a vacuum drying oven every 10 minutes Take it out and stir once to prevent the solid particles from stratifying with the solution, thus affecting the coupling effect. The obtained powder will have a small amount of agglomeration.

[0031] (2) Mixing: Add tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid]pentaerythritol ester, tri(2,4-di-tert-butylbenzene) to L...

Embodiment 2

[0034] Polyethylene masterbatch S2 is made of the following components:

[0035]

[0036] The preparation method of polyethylene master batch is as embodiment 1.

[0037] In 100 parts by weight LLDPE resin (MFR=2.0g / 10mim, density 0.920g / cm 3 ), adding 210 parts by weight of the above-mentioned polyethylene masterbatch S, and obtaining the LLDPE composition for blown film after granulation.

Embodiment 3

[0039] Polyethylene masterbatch S3 is made of the following components:

[0040]

[0041] The preparation method of polyethylene master batch is as embodiment 1.

[0042] In 100 parts by weight LLDPE resin (MFR=2.0g / 10mim, density 0.920g / cm 3 ), adding 10 parts by weight of the above-mentioned polyethylene masterbatch S3, and obtaining the LLDPE composition for blown film after granulation.

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Abstract

The invention relates to polyethylene, and in particular relates to a polyethylene masterbatch with pumice powder as an opening agent and a preparation method thereof. The polyethylene masterbatch is made from the following raw materials in parts by weight: 100 parts of LLDPE resin, 0.15-1.25 parts of an antioxidant, 0.1-1.0 part of a chlorine ion neutralizing agent, 0.25-2.0 parts of a slip agent, 0.3-5.0 parts of pumice powder, 0.15-0.4 part of a coupling agent and 0.2-1.0 part of a light stabilizer. The pumice powder is used as the opening agent of the polyethylene masterbatch, has excellent opening property, and has little effect on the optical properties of films; the coupling agent and the light stabilizer are used for processing the pumice powder, so that the pumice powder and the selected high molecular light stabilizer have synergistic effect. The films prepared from the polyethylene masterbatch have more excellent resistance to UV aging; and the polyethylene masterbatch has the advantages of simple preparation process, low cost and environmentally friendly materials.

Description

technical field [0001] The invention relates to polyethylene, in particular to a polyethylene masterbatch using pumice powder as an antiblocking agent and a preparation method thereof. Background technique [0002] Polyolefin film is widely used in the packaging of industrial products and daily consumer goods and agricultural production, etc., but after blown into film, the film layers are easy to form a vacuum-tight bond, which is difficult to separate; During the storage process, due to the interpenetration and entanglement of the macromolecular chains between the films, the films are firmly bonded together and difficult to separate, which seriously affects the use of the films. In order to prevent this phenomenon from happening, a certain amount of anti-blocking agent and slippery agent are usually added when producing the film; commonly used film anti-blocking agents are inorganic anti-blocking agents such as talcum powder, calcium carbonate, diatomaceous earth, etc. Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08K13/06C08K5/134C08K5/526C08K5/098C08K5/20C08K3/36C08K3/22C08J3/22
CPCC08L23/0815C08L2207/062C08K13/06C08K3/36C08K3/22C08K5/098C08K5/1345C08K5/526C08K5/20
Inventor 高凌雁王群涛郭锐王日辉唐岩许萍石晶
Owner CHINA PETROLEUM & CHEM CORP