Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Continuous long fiber-reinforced thermoplastic resin and its preparation method and molding equipment

A technology for reinforcing thermoplastics and thermoplastic resins, which is applied in the field of continuous long fiber reinforced thermoplastic resins. It can solve the problems of low fiber bundle temperature, affecting thermoplastic resin impregnation, and poor dispersion and impregnation effects, so as to improve dispersion effect, fiber impregnation and dispersion efficiency. High, the effect of increasing the contact temperature

Inactive Publication Date: 2012-10-17
CHINA NAT OFFSHORE OIL CORP +2
View PDF6 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this molding method, the impregnation unit is only composed of a rolling device. Since the fiber bundle has not been preheated, the temperature of the fiber bundle is low, which affects the impregnation of the thermoplastic resin; at the same time, the fiber bundle has not been impregnated by the melt impregnation unit, dispersed and Poor impregnation effect

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
  • Continuous long fiber-reinforced thermoplastic resin and its preparation method and molding equipment
  • Continuous long fiber-reinforced thermoplastic resin and its preparation method and molding equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 with figure 2 As shown, a molding equipment for producing continuous long fiber reinforced thermoplastic resin, the molding equipment sequentially includes along the extrusion direction: fiber preheating device 1, melt impregnation mold 2 and secondary rolling device 3; fiber preheating device 1 consists of Composed of 4 equally spaced dispersing rollers, the diameter of the dispersing rollers is 45mm, and the distance between two adjacent dispersing rollers in the horizontal direction is 45mm. The dispersing roller 4 is provided with a heat source by the electric heating rod 5 of the dispersing roller at the core; The dipping mold 2 is made up of 5 equally spaced tension rollers 7, the diameter of the tension rollers is 50mm, and the distance between two adjacent tension rollers in the horizontal direction is 50mm; the first group of tension rollers and the last group of tension rollers are composed of The upper tension roller 8 and the lower tension...

Embodiment 2

[0029] Such as figure 1 with figure 2As shown, a molding equipment for producing continuous long fiber reinforced thermoplastic resin, the molding equipment sequentially includes along the extrusion direction: fiber preheating device 1, melt impregnation mold 2 and secondary rolling device 3; fiber preheating device 1 consists of Composed of 4 equally spaced dispersing rollers, the diameter of the dispersing roller is 100 mm, and the distance between two adjacent dispersing rollers in the horizontal direction is 100 mm. The dispersing roller 4 is provided with a heat source by the electric heating rod 5 of the dispersing roller at the core; The dipping mold 2 is made up of 5 equally spaced tension rollers 7, the diameter of the tension rollers is 100mm, and the distance between two adjacent tension rollers in the horizontal direction is 60mm; the first group of tension rollers and the last group of tension rollers are composed of The upper tension roller 8 and the lower tens...

Embodiment 3

[0031] 1) Utilize the molding equipment for the production of continuous long fiber reinforced thermoplastic resin prepared in Example 1, alternately bypass the four dispersing rollers 4 of the fiber preheating device 1 with a bundle of continuous long fiber bundles 6, and electrically heat the dispersing roller core Under the action of rod 5, the set preheating temperature of 180°C is reached, and preliminary dispersion is obtained at the same time;

[0032] 2) The continuous long fiber bundle 6 that has been preheated and dispersed in step 1) is introduced into the melt impregnation mold 2, and alternately bypasses the five tension rollers 7 in the cavity; at the same time, the thermoplastic resin melt is fed by the extruder connecting device 13 Enter the molten impregnation mold 2; by adjusting the adjustment screw 10 on the molten impregnation mold 2, adjust the calendering gap between the upper tension roller 8 and the lower tension roller 9 to be 0.1mm, and the thermoplas...

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
Tensile strengthaaaaaaaaaa
Bending strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a continuous long fiber-reinforced thermoplastic resin and its preparation method and molding equipment. The molding equipment comprises a fiber preheating device 1, a melt impregnation mold 2 and a secondary rolling device 3. The preparation method comprises the following steps of 1, alternately bypassing dispersion rollers (4) with continuous long fibers, and simultaneously heating dispersion roller electrically-heating rods (5) so that preliminary dispersion of the continuous long fibers is realized, 2, alternately bypassing tension rollers (7) with the treated continuous long fibers, and simultaneously feeding thermoplastic resin melt into the melt impregnation mold 2 from an extruder connection device (13) so that the continuous long fibers and the thermoplastic resin melt are subjected to melt impregnation, and 3, alternately bypassing rollers (11) with the continuous long fibers and the thermoplastic resin melt treated by the step 2, and carrying out rolling to obtain the continuous long fiber-reinforced thermoplastic resin. The continuous long fiber-reinforced thermoplastic resin prepared by the molding equipment has the advantages of good impregnation effects, high impregnation efficiency and excellent performances.

Description

technical field [0001] The invention relates to a continuous long fiber reinforced thermoplastic resin, in particular to a continuous long fiber reinforced thermoplastic resin and its preparation method and molding equipment. Background technique [0002] Continuous long fiber reinforced thermoplastic resin is a reinforced thermoplastic resin whose reinforcing fibers are arranged in one direction and whose length is equal to the length of the resin particles. The resin is evenly distributed among the fibers to form a continuous phase to fix the spatial position of the fibers and Transfer loads within the material. Compared with ordinary short fiber reinforced thermoplastic resins, it has more outstanding mechanical properties, heat resistance, warpage resistance, dimensional stability, etc., so it can manufacture products with excellent mechanical properties, such as auto parts, electronic devices , chemical components, etc. [0003] There have been some disclosed impregna...

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
IPC IPC(8): B29C70/16B29C70/50B29C70/54B29B15/08
Inventor 贾明印王亮亮于建陈步宁傅送保徐建波王洪波刘慧宏陈科宇
Owner CHINA NAT OFFSHORE OIL CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com