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Master batch for extinction polyolefin

A polyolefin and masterbatch technology, applied in the field of polyolefin processing, can solve the problems of poor surface affinity of polyolefin, lower tensile strength of film system, poor dispersion of semi-dull masterbatch, etc., to reduce crystal defects, draw Excellent elongation and improved dispersibility

Pending Publication Date: 2022-05-06
湖南省希润弗高分子新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ternary random polypropylene copolymer is easy to cause the film to stick to the roll during the longitudinal stretching process, while the semi-dull masterbatch prepared by the binary polypropylene copolymer has poor dispersion
However, in the case of inorganic matting, there are usually poor surface affinity and uneven dispersion of inorganic powders to polyolefins, thereby reducing the tensile strength of the film system.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1: the granulation of fluoroelastomer, comprises the following steps:

[0032] Cut the bulk rubber material of vinylidene fluoride-tetrafluoroethylene-hexafluoropropylene copolymer into rubber strips with a width of about 5cm by using an automatic rubber cutter, and put it in a crusher to crush it into particles with a particle size of 1-3mm. Frozen grinding, passing through a 20-mesh sieve to obtain fluoroelastomer particles.

Embodiment 2

[0033] Embodiment 2: A masterbatch for matting polyolefin, including the following components by weight as shown in the table below: wherein the fluoroelastomer is the pellet obtained through the granulation of Embodiment 1;

[0034] Table 1: Example Material Formula Ratio Table (parts by weight)

[0035] Example 2a Example 2b Example 2c Example 2d Example 2e Example 2f Example 2g Example 2h JHF 2461 10 10 10 5 5 JHF 2462 10 5 5 3F 246 5 10 5 9202F 50 70 30 50 60 60 90 9205F 90 KPR-660V 3 4 2 7 3 4 6 8 CAPA 6800 4 5 2 2 10 Optimal PEG8000 3 Optimal PEG9500 2 4 5

Embodiment 2a

[0036] Example 2a: Take 5kg of JHF 2461, 25kg of 9202F, 1.5kg of KPR-660V and 2 parts of CAPA 6800, put them in a 100kg horizontal vacuum color mixer, use circulating cooling water to keep the stirring temperature below 30°C, and use 100 Stir evenly at a speed of rev / min to obtain an additive composition, mix the additive composition and DFDA-7042 at a weight ratio of 5:100, extrude with twin-screws, and pelletize to obtain matte polyolefin masterbatch 2a;

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PUM

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Abstract

The invention discloses a master batch for extinction polyolefin. The master batch comprises an additive composition and a carrier, wherein the additive composition is prepared from a fluorine-containing polymer, nano inorganic powder and a compatilizer, the fluorine-containing polymer is prepared from polytetrafluoroethylene micro powder and a fluoroelastomer according to the weight ratio of (3-9): 1, and the weight ratio of the additive composition to the carrier is (1-10): 100. The fluorine elasticity, the lubricating property of the polytetrafluoroethylene and the lubricating property and crystallization matting property of the polytetrafluoroethylene micro powder are utilized, the polytetrafluoroethylene micro powder is applied to a binary polyolefin matting film system, the processability of polyolefin can be improved, and a polyolefin matting product with high physical strength and good texture is obtained.

Description

technical field [0001] The invention relates to the technical field of polyolefin processing, in particular to a master batch for matting polyolefin. Background technique [0002] Polyolefin films, especially polyethylene films, are widely used in the field of packaging. In order to create a high-end and elegant atmosphere on the surface of food, gift packaging and hardcover books, the gloss and haze of the film are required to be within a certain range. Thin film with diffuse matting effect. [0003] According to the surface gloss and haze of the product, including the film, it can be divided into three categories: glossy, matte and matte products: glossy products with a gloss greater than 70% are called glossy products, and glossy products with a gloss less than 15% are called matte products. The rest are classified as matte products. [0004] Matting film is a kind of packaging film with low gloss and high haze and diffuse reflection and matting effect. The surface of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08L27/18C08L27/16C08L71/02C08L67/04C08K3/26C08J3/22
CPCC08J3/226C08J2423/08C08J2427/18C08J2427/16C08J2471/02C08J2467/04C08K2003/265
Inventor 王平王文明
Owner 湖南省希润弗高分子新材料有限公司
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