Formula and preparation method of pre-dispersion aramid short fiber masterbatch

A technology of aramid short fiber and pre-dispersion, which is applied in the field of polymer material modification technology and processing, can solve the problem of little improvement in adhesion performance, achieve high fiber length-to-diameter ratio retention, low fiber damage, The effect of easy industrial promotion

Inactive Publication Date: 2016-03-23
HEILONGJIANG HONGYU NOVEL SHORT FIBER MATERIALS CO LTD
View PDF4 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The staple fiber pretreated by this method has good dispersibility, but little improvement on the bonding performance, because it is difficult for the binder to infiltrate the surface of the fiber during the coagulation process.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Formula and preparation method of pre-dispersion aramid short fiber masterbatch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] As shown in Figure 1, the present invention discloses a preparation method of pre-dispersed aramid staple fiber masterbatch

[0019] Raw material premixing: add 30 parts of aramid staple fiber, 10 parts of naphthenic oil, 10 parts of nanoclay, and 30 parts of natural rubber into the mixer. The temperature is controlled at 120 ° C, and the premix is ​​obtained in the mixer for 10 minutes.

[0020] Mixing material mixing: 80 parts of the modified aramid staple fiber compound and 20 parts of the natural rubber matrix are pre-mixed on a closed rubber mixer, and the mixing time is 10 minutes to obtain aramid staple fiber content of 30%. Predispersed aramid staple fiber masterbatch.

[0021] Extrusion granulation: mixing the mixture: the prepared pre-dispersed aramid staple fiber masterbatch is dispersed, extruded, granulated, and packaged through a screw rubber mixer, and the pre-dispersed aramid staple fiber masterbatch is completed. preparation.

Embodiment 2

[0023] Raw material premixing: add 40 parts of aramid staple fiber, 10 parts of naphthenic oil, 5 parts of white carbon black, and 20 parts of natural rubber into the mixer, and control the temperature at 150°C, and mix for 15 minutes to obtain the premixed material.

[0024] Mixing material mixing: 75 parts of the modified aramid staple fiber compound and 25 parts of the natural rubber matrix are pre-mixed on a closed rubber mixer, and the mixing time is 15 minutes to obtain aramid staple fiber content of 40%. Predispersed aramid staple fiber masterbatch.

[0025] Extrusion granulation: mixing the mixture: the prepared pre-dispersed aramid staple fiber masterbatch is dispersed, extruded, granulated, and packaged through a screw rubber mixer, and the pre-dispersed aramid staple fiber masterbatch is completed. preparation.

Embodiment 3

[0027] Raw material premixing: add 50 parts of aramid staple fiber, 10 parts of dioctyl phthalate, 5 parts of white carbon black, and 15 parts of NBR rubber into the mixer. premix.

[0028] Compounding: 75 parts of the modified aramid staple fiber compound and 25 parts of the NBR rubber matrix are pre-mixed on a closed rubber mixer, and the mixing time is 20 minutes to obtain aramid staple fiber content of 40%. Predispersed aramid staple fiber masterbatch.

[0029] Extrusion granulation: The prepared pre-dispersed aramid staple fiber masterbatch is then dispersed, extruded, granulated, and packaged by a screw rubber mixer, and the preparation of the pre-dispersed aramid staple fiber masterbatch is completed.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention relates to the technical fields of polymer material modifying and processing, and discloses a formula and preparation method of a pre-dispersion aramid short fiber masterbatch. By selecting an appropriate isolating dispersant and plasticizer, aramid short fibers can be evenly dispersed in a rubber matrix and can effectively enhance the dispersed rubber matrix; by optimizing a production technology, the damage of the production process to the aramid short fibers is little, the length-diameter ratio retention rate of the fibers is high, no organic solvent is used in the process, no smoke or smell is generated, no pollution is generated, operation and control are easy, the equipment cost is low, and industrialized popularization is easy; the defects that the traditional modification effect is poor, and the product properties are inhomogenous are overcome.

Description

technical field [0001] The invention relates to the technical field of modification of polymer materials and the technical field of processing, in particular to a formula and a preparation method of a pre-dispersed aramid staple fiber masterbatch. Background technique [0002] The relationship between the microstructure and macroscopic properties of aramid staple fiber reinforced rubber composites is unique, but the aramid staple fiber itself has not undergone surface treatment, and the aramid staple fiber is directly added to the rubber matrix, and the aramid staple fiber is in the rubber matrix. It is difficult to disperse evenly in the medium, so it will have a great influence on the properties of aramid staple fiber rubber composites. [0003] Aiming at the unique ultra-fine short fiber microstructure of aramid pulp fiber and its characteristics of huge specific surface area, many surface polar groups, and large electrostatic tendency, a systematic study was carried out ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): C08L7/00C08L77/10C08L91/00C08L9/02C08K3/34C08K3/36C08K5/12
Inventor 朱新军吴卫东
Owner HEILONGJIANG HONGYU NOVEL SHORT FIBER MATERIALS CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap