Method for promoting dispersion phases in incompatible polymer blend to form stable fibers

A polymer, dispersed phase technology, applied in the direction of conjugated synthetic polymer rayon, fiber chemical characteristics, conjugated rayon, etc., can solve the problems of environmental pollution, high cost, long cycle, etc. performance, reducing dosage, promoting improved effects

Active Publication Date: 2015-11-18
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the compatibilization method of synthetic polymer compatibilizer has long period, high cost and pollution to the environment

Method used

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  • Method for promoting dispersion phases in incompatible polymer blend to form stable fibers
  • Method for promoting dispersion phases in incompatible polymer blend to form stable fibers
  • Method for promoting dispersion phases in incompatible polymer blend to form stable fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Formation of PP microfiber phase in the hydrophobic nano-silica / PP / PS blend system of embodiment 1

[0053] Select two mutually incompatible polymers PS and polymer PP respectively, wherein the grade of PS is: Taihua General (Ningbo) GP5250, the grade of PP is: Lanzhou Petrochemical T30S; the inorganic filler particles are hydrophobic nano-scale dioxide Silicon, the grade is DegussaAEROSILR974.

[0054] The dispersed phase polymer PP, the matrix phase polymer PS and the hydrophobic nano-scale silica particles were melt-blended at 200°C for 10 minutes using an internal mixer to prepare a blended compound. Sample preparation was performed by compression molding at 200°C and 10MPa, and then the PS / PP / silica blend composite system was applied with a stretching flow field at a stretching rate of 0.01s -1 , when stretched to a tensile strain of 1, the sample was rapidly cooled with liquid nitrogen, and the stretched sample was quenched in liquid nitrogen for 30 minutes and t...

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Abstract

The invention relates to a method for promoting dispersion phases in incompatible polymer blend to form fibers and a fiber phase stability improving method of the fibers, belongs to the technical field of high polymer materials and provides a method for promoting dispersion phases in incompatible polymer blend to form stable fibers. According to the method, matrix phase polymers 1, dispersion phase polymers 2 and inorganic filler particles are adopted to obtain polymer blend compounds filled with the inorganic filler particles through a melt blending method; furthermore, dispersion phases of the blend compounds form stable microfiber phases under an elongation flow field through melt stretching, wherein the inorganic filler particles are distributed in matrix phases and located on the interface of the matrix phases and the dispersion phases, and the polymers 1 and the polymers 2 are incompatible. By means of the method, the dispersion phases in the incompatible polymer blend are easily and effectively promoted to form the fiber phases, and the fiber phase stability is improved.

Description

technical field [0001] The invention relates to a method for promoting the formation of fibers in the dispersed phase of incompatible polymer blends and improving the stability of the fiber phase, and belongs to the technical field of polymer materials. Background technique [0002] Polymer blends and composites are widely used in everyday life and industry such as automobiles, ships, aerospace components, and sports equipment. Over the past few decades, the development of polymer blends and composites has been the focus. [0003] Incompatible polymer blends and composite materials usually form different microscopic structures such as co-continuous phase structure, sea-island structure, fiber phase structure, core-shell structure, and layered structure due to the differences in their components and additives, so that the polymerization The properties of blends and composites have good controllability. Among them, the existence of the fiber phase structure in the incompatib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/06D01F8/10D01F8/00D01F1/10
Inventor 孔米秋黄亚江李光宪
Owner SICHUAN UNIV
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