Additive composition for polyolefin

A composition and polyolefin technology, applied in the field of polyolefin processing, can solve the problems of poor surface affinity of polyolefin, reduced tensile strength of film system, poor dispersion of semi-matte masterbatch, etc., to reduce crystallization defects, reduce The effect of agglomeration between particles and excellent tensile properties

Pending Publication Date: 2022-06-03
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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  • Additive composition for polyolefin
  • Additive composition for polyolefin
  • Additive composition for polyolefin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: granulation of fluoroelastomer, comprising the following steps:

[0031] The block rubber material of the vinylidene-tetrafluoroethylene-hexafluoropropylene copolymer is cut into rubber strips with a width of about 5cm by automatic cutting machine, and crushed into particles with a particle size of 1-3mm in the crusher, frozen milling powder, through a 20 mesh sieve, to obtain the particles of fluoroelastomer.

Embodiment 2

[0032] Example 2: an additive composition for polyolefins, comprising the following components by weight as shown in the following table: wherein the fluoroelastomer is a granuled particle obtained by Example 1;

[0033] Table 1: Example material formula ratio table (by weight)

[0034]

[0035]

Embodiment 2a

[0036] Example 2a: take 5kg of JHF 2461, 25kg of 9202F, 1.5kg of KPR-660V and 2 parts CAPA 6800, placed in a 100 kg horizontal vacuum mixer, using circulating cooling water to maintain the stirring temperature below 30 ° C, stirred evenly at a speed of 100 rpm, to give polyolefin additive composition 2a;

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Abstract

The invention discloses an additive composition for polyolefin, which is prepared from a fluorine-containing polymer, nano inorganic powder and a compatilizer, and the fluorine-containing polymer is prepared from polytetrafluoroethylene micro powder and a fluoroelastomer according to the weight ratio of (3-9): 1. 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 present invention relates to the field of polyolefin processing technology, specifically to an additive composition for polyolefins. Background [0002] Polyolefin films, especially polyethylene films, are widely used in the packaging field. In the food, gifts and other packaging and hardcover books on the surface, in order to create a high-grade and elegant atmosphere, the gloss and haze of the film is required to be within a certain range of values, according to its needs, the market has produced a low-gloss high-haze diffuse reflection matting effect of the film. [0003] According to the different surface gloss and haze of the products, including the film can be divided into three categories: glossy, matte and matting products: glossiness greater than 70% is called glossy products, gloss less than 15% is called matting products, and the rest are classified as matte products. [0004] Matting film is a kind of low gloss high haze, diffuse reflection ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/18C08L27/16C08L67/04C08L71/02C08K3/26C08L23/14C08L23/06C08L23/08C08J3/22C08J5/18
CPCC08L27/18C08J3/226C08J5/18C08J2323/14C08J2423/06C08J2423/08C08J2427/18C08J2427/16C08J2467/04C08J2471/02C08K2201/011C08K2003/265C08L27/16C08L67/04C08L71/02C08K3/26Y02E10/50
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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