Method for promoting stable fiber formation of dispersed phases in incompatible polymer blends

A technology of polymers and dispersed phases, applied in the direction of conjugated synthetic polymer artificial filaments, fiber chemical characteristics, conjugated artificial filaments, etc., can solve the problems of environmental pollution, high cost, long cycle, etc., and achieve enhanced physical performance, reduce dosage, promote improved effect

Active Publication Date: 2018-04-24
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 stable fiber formation of dispersed phases in incompatible polymer blends
  • Method for promoting stable fiber formation of dispersed phases in incompatible polymer blends
  • Method for promoting stable fiber formation of dispersed phases in incompatible polymer blends

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 Degussa AEROSIL R974.

[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...

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Abstract

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. The present invention provides a method for promoting the formation of stable fibers in a dispersed phase in an incompatible polymer blend, wherein the matrix phase polymer 1, the dispersed phase polymer 2 and inorganic filler particles are melt-blended to obtain inorganic filler particles Filled polymer blend composite; further melt and stretch the dispersed phase of the blend composite to form a stable microfibrous phase under the stretching flow field; wherein, the inorganic filler particles are distributed in the matrix phase and between the matrix phase and the At the interfacial position of the dispersed phase, the polymer 1 and polymer 2 are incompatible. The method of the invention can simply and effectively promote the dispersed phase in the incompatible polymer blend to form a fiber phase and improve the stability of the microfibrous phase.

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 Patents(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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