Linear low-density polyethylene auxiliary-agent master batch and preparation method thereof

A linear low-density, linear low-density technology, applied in the field of polyethylene processing masterbatch, can solve problems such as affecting the optical properties of film products, achieve the effect of increasing the critical shear rate, reducing production costs, and solving the phenomenon of shark skin

Inactive Publication Date: 2016-01-27
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when fluoroelastomer is used as a processing aid, it will affect the optical properties of film products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] S1 additive masterbatch is composed of the following components:

[0025] LLDPE resin (copolymerization of ethylene and 1-butene, MFR6.0g / 10mim, density 0.910g / cm 3 ) 100 copies

[0026] Tetra[β-(3,5 di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 0.2 part

[0027] 0.2 parts of tris(2,4-di-tert-butylphenyl) phosphite

[0028] 0.5 parts of zinc stearate

[0029] Hexagonal boron nitride (particle size 0.03μm, aspect ratio 13:1) 0.6 parts

[0030] 0.9 parts of di(undecyl) phthalate

[0031] Phthalocyanine blue 0.01 part

[0032] In LLDPE resin (MFR2.0g / 10mim, density 0.920g / cm 3 ) Was added with 10 parts of S1 auxiliary masterbatch and granulated to obtain the composition of Example 1.

Embodiment 2

[0034] S2 additive masterbatch is composed of the following components:

[0035] LLDPE resin (copolymerization of ethylene and 1-hexene, MFR4.0g / 10mim, density 0.920g / cm 3 ) 100 copies

[0036] Tetra[β-(3,5 di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 0.25 parts

[0037] Tris (2,4-di-tert-butylphenyl) phosphite 0.25 parts

[0038] 0.7 parts of zinc stearate

[0039] Hexagonal boron nitride (particle size 0.06μm, aspect ratio 13:1) 1 part

[0040] 1.5 parts of bis(undecyl) phthalate

[0041] Phthalocyanine blue 0.01 part

[0042] In LLDPE resin (MFR=2.0g / 10mim, density 0.920g / cm 3 ) Was added with 10 parts of S2 auxiliary masterbatch and granulated to obtain the composition of Example 2.

Embodiment 3

[0044] S3 additive masterbatch is composed of the following components:

[0045] LLDPE resin (copolymerization of ethylene and butene-1, MFR=5.0g / 10mim, density 0.910g / cm 3 ) 100 copies

[0046] Tetra[β-(3,5 di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 1.2 parts

[0047] 0.3 parts of tris(2,4-di-tert-butylphenyl) phosphite

[0048] 0.3 parts of zinc stearate

[0049] Hexagonal boron nitride (particle size 0.08μm, aspect ratio 13:1) 0.5 parts

[0050] 0.5 part of bis(undecyl) phthalate

[0051] Phthalocyanine blue 0.01 part

[0052] In LLDPE resin (MFR=2.0g / 10mim, density 0.920g / cm 3 ) Was added 10 parts of S3 auxiliary masterbatch, and the composition of Example 3 was obtained after granulation.

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PUM

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Abstract

A linear low-density polyethylene (LLDPE) auxiliary-agent master batch and a preparation method thereof are disclosed and belong to the technical field of polyvinyl chloride processing master batch. The linear low-density polyethylene auxiliary-agent master batch is characterized by comprising the following compositions in parts by weight: 100 parts of LLDPE resin, 0.25-1.5 parts of an anti-oxidant, 0.3-1.0 part of an acid absorption agent, 0.2-1.0 part of hexagonal boron nitride, 0.3-4.0 parts of diundecyl phthalate, and 0.01-0.02 part of phthalocyanine blue. The LLDPE resin density is 0.91-0.92 g/cm<3>, and the melt mass flow rate is 2-10 g/10 min. The preparation method comprises performing granulation on half LLDPE resin powder and diundecyl phthalate and on half LLDPE resin powder and hexagonal boron nitride, and then mixing according to the mass ratio of 1:1. By employing the technical scheme, the phenomena that the surface of a film is like a sharkskin and the film is broken when linear low density polyethylene is used to process the film are solved, and the processing efficiency is improved.

Description

Technical field [0001] Linear low-density polyethylene auxiliary agent masterbatch and a preparation method thereof belong to the technical field of polyethylene processing masterbatch. Background technique [0002] Linear low density polyethylene (LLDPE) is obtained by copolymerizing ethylene and α-olefin monomers. The structural characteristics of LLDPE determine that it has such defects as high melt viscosity, low strength, serious melt fracture during extrusion, and heavy processing equipment load. Film is the largest application area of ​​LLDPE resin, accounting for more than 70% of the total amount of LLDPE resin. Increasing the output per unit time in the production process is very important for film processing companies, but excessively high extrusion speed may cause melt fracture, resulting in shark skin on the film surface and affecting the appearance of the film. [0003] At present, in order to improve the processing performance of the polymer, fluoroelastomers are us...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K3/38C08K5/12C08K5/098C08J3/22
Inventor 徐素兰张广明张超刘少成
Owner CHINA PETROLEUM & CHEM CORP
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