High-density polyethylene composition

A technology of high-density polyethylene and composition, applied in the direction of conjugated synthetic polymer artificial filament, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of low strength, poor fiber tensile performance, adhesion performance, spinnability Poor performance and other problems, to achieve the effect of good performance

Inactive Publication Date: 2010-04-28
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the above proposal, the vinyl polymer with a low melting point of 90-125°C in the sheath layer has more branched chains, poor regularity of macromolecules, poor tensile properties of fibers, and low strength. problem, and when the polyethylene resin composed of 120-130°C high melting point ethylene polymer and 90-125°C low melting point ethylene polymer is used as the sheath of the composite fiber, there are adhesive properties, spinnability The shortcomings such as relatively poor, the quality will decline when used as sanitary materials

Method used

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  • High-density polyethylene composition

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Embodiment 1

[0034] 100 parts by mass of high-density polyethylene copolymer, melt flow rate 21g / 10min, density 0.950g / cm 3 , wherein the content of 1-butene monomer unit is 0.58mol%; Antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 0.1 mass parts, three ( 2. 0.2 parts by mass of 4-di-tert-butylphenyl) phosphite, and 0.1 parts by mass of stabilizer calcium stearate.

Embodiment 2

[0036] 100 parts by mass of high-density polyethylene copolymer, melt flow rate 21g / 10min, density 0.952g / cm 3 , wherein the content of 1-butene monomer unit is 0.50mol%; antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate 0.1 parts by mass, three ( 2. 0.2 parts by mass of 4-di-tert-butylphenyl) phosphite, and 0.1 parts by mass of stabilizer calcium stearate.

Embodiment 3

[0038] 100 parts by mass of high-density polyethylene copolymer, melt flow rate 22g / 10min, density 0.953g / cm 3 , wherein the content of 1-butene monomer unit is 0.48mol%; antioxidant β-(3,5-di-tert-butyl-4-hydroxyphenyl) octadecyl propionate 0.1 parts by mass, bis( 2. 0.2 parts by mass of 4-di-tert-butylphenyl) pentaerythritol diphosphite, and 0.2 parts by mass of stabilizer calcium stearate.

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Abstract

The invention discloses a high-density polyethylene composition, which contains ethylene-1-butenyl copolymer with the flow rate of melt between 20g / 10min and 24g / 10min, which is suitable for the production of a sheath of PE / PP composite fiber, and which has extremely excellent spinnability, thermal bonding property and softness. The nonwoven fabric which is produced by using the composition has excellent softness and good physical and mechanical properties.

Description

technical field [0001] The invention relates to a high-density polyethylene composition, in particular to a special high-density polyethylene resin which has excellent heat-oxidative aging resistance and spinnability and is suitable for producing PE / PP composite fiber sheaths. Background technique [0002] In recent years, properties required for non-woven fabrics such as sanitary napkins and disposable diapers for sanitary products have been increased and diversified, and such non-woven fabrics are particularly required to have good softness and high strength. [0003] Spunbonded nonwoven fabrics used in various fields have the advantages of good tensile strength and high production efficiency compared with short fiber nonwoven fabrics produced by carding and melt blown methods. For applications such as disposable (disposable) sanitary materials, spunbond nonwovens with high production efficiency are more suitable. In order to obtain a spunbonded non-woven fabric with good...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/08C08K5/526C08K5/098C08K5/103C08K5/101D01F8/06D01F1/10
Inventor 赵丽梅王力刚王素玉陈柯陈青葵唐为丰孟翠省谷凤来马海霞李蕾
Owner CHINA PETROLEUM & CHEM CORP
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