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

Silk fiber reinforced high polymer composite material

A technology of silk fiber and composite material is applied in the field of fiber reinforced material and silk fiber reinforced polymer composite material to achieve the effects of improving mechanical properties, good biocompatibility and low price

Inactive Publication Date: 2006-05-24
SHANGHAI JIAO TONG UNIV
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese patent name: Natural plant fiber reinforced fully degradable polymer composite material and its preparation method, application number: 02149613.7, the patent reads: "Using Indian plant fiber Hildegardiapopulifolia, sisal fiber, ramie, wood fiber as fiber raw materials , with the degradable plastic methyl ethylene carbonate as the matrix, the fiber raw material and the matrix raw material are prepared by melt blending under the condition of the presence / absence of the coupling agent, and the mass percentage of the fiber is 5-80%, preferably The fiber content is 10-50%", but the patent on natural animal fiber reinforced fully degradable polymer composites has not been found

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-4

[0012] The mechanical properties of silk fiber reinforced polycaprolactone (PCL) composites with different fiber contents are shown in Table 1. The matrix and fibers with different composition ratios were stirred in a high-speed mixer for 15 minutes to make them evenly mixed, and then mixed in an internal mixer Mix at 140°C for 15 minutes, press with a flat vulcanizer at 140°C for 15 minutes at a pressure of 25 MPa, and then release the mold after cold pressing at room temperature for 10 minutes while keeping the pressure constant. According to the standard of GB1042-79, the mechanical performance test is carried out. It can be seen from Table 1 that with the addition of fibers, the mechanical performance of the composite material has been significantly improved.

Embodiment 5-8

[0014] The mechanical properties of silk fiber-reinforced polylactic acid (PLA) composites with different fiber contents are shown in Table 2. The matrix and fibers with different composition ratios were stirred in a high-speed mixer for 15 minutes to make them evenly mixed, and then mixed in an internal mixer at 140 Mix at ℃ for 15 minutes, press with a flat vulcanizer at 140 ℃ for 15 minutes under a pressure of 25 MPa, and then release the mold after cold pressing at room temperature for 10 minutes while keeping the pressure constant. According to the standard of GB1042-79, the mechanical performance test is carried out. It can be seen from Table 2 that with the addition of fibers, the mechanical performance of the composite material has been significantly improved.

Embodiment 9-10

[0016] A blend of polycaprolactone (PCL) / polylactic acid (PLA) was used as a matrix, the mass ratio of the two in the matrix was changed, and the mass fraction of silk fiber was kept constant. Stir the matrix and fibers in a high-speed mixer for 15 minutes to make them evenly mixed, then knead them in an internal mixer at 140°C for 15 minutes, and mold them with a flat vulcanizer at 140°C for 15 minutes under a pressure of 25MPa, keeping the pressure constant Demould after cold pressing at room temperature for 10 minutes. The mechanical properties were tested according to the standard of GB1042-79, and the specific mechanical properties are shown in Table 3.

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
tensile strengthaaaaaaaaaa
bending strengthaaaaaaaaaa
flexural modulusaaaaaaaaaa
Login to View More

Abstract

The invention relates to a silk fiber reinforced high polymer compounding material which is made up of 15-65% silk fiber and the rest is matrices. The matrices could be one or the mixture of poly-caprolactone and poly-lactic acid. It has simple technology, and broad application range. It keeps good biocompatibility and biodegradability.

Description

technical field [0001] The invention relates to a fiber reinforced material in the technical field of composite materials, in particular to a silk fiber reinforced high polymer composite material. Background technique [0002] Biodegradable polymer materials have attracted increasing attention due to their wide applications in biomedicine and environmental science. Among them, aliphatic polyester materials are one of the most researched, such as polyglycolic acid (PGA), polylactic acid (PLA) and polycaprolactone (PCL) and so on. As biodegradable materials, they all have good biocompatibility and are ideal for implant materials. At the same time, they also have good thermoplasticity and molding processability, and can be made into fibers, sheets, sheets, etc. by extrusion, blow molding, injection molding, etc., so they are widely used in the field of biomedicine, and their application range involves almost all Non-permanent implant devices, including controlled drug release...

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): C08L67/04C08J5/04
Inventor 孙康乔秀颖李伟
Owner SHANGHAI JIAO TONG UNIV
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