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

Polyamide resin composition and method for producing polyamide resin composition

一种聚酰胺树脂、组合物的技术，应用在聚酰胺树脂组合物领域，能够解决没有解决纤维素纤维凝聚等问题，达到耐热性提高的效果

Active Publication Date: 2012-11-28
UNITIKA LTD
View PDF6 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, the invention described in Patent Document 2 does not solve the problem of aggregation of cellulose fibers as described above.

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
  • Polyamide resin composition and method for producing polyamide resin composition
  • Polyamide resin composition and method for producing polyamide resin composition
  • Polyamide resin composition and method for producing polyamide resin composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] As the aqueous dispersion of cellulose fibers, CELISH KY100G (manufactured by Daicel Finechem Co., Ltd.: aqueous dispersion containing 10% by mass of cellulose fibers with an average fiber diameter of 125 nm) was used, and purified water was added thereto and stirred with a mixer to prepare fibers The aqueous dispersion liquid whose content of vegan fiber is 3 mass %.

[0108]170 parts by mass of the aqueous dispersion of cellulose fibers, 216 parts by mass of ε-caprolactam, 44 parts by mass of aminocaproic acid, and 0.59 parts by mass of phosphorous acid were stirred and mixed until a uniform solution was obtained. Next, the mixed solution was heated slowly, and the temperature was raised to 240° C. while discharging water vapor during the heating, and stirred at 240° C. for 1 hour to conduct a polymerization reaction. When the polymerization was completed, the obtained resin composition was taken out and cut into pellets. The obtained granules were treated with hot w...

Embodiment 2

[0111] An aqueous dispersion having a cellulose fiber content of 3% by mass was prepared in the same manner as in Example 1, and 70 parts by mass of the aqueous dispersion of cellulose fibers and 100 parts by mass of ε-caprolactam were further stirred and mixed until uniform The solution. Next, while stirring the mixed solution, heat it to 240°C, slowly release water vapor, and at the same time change from 0kgf / cm 2 Boost to 7kgf / cm 2 pressure. The pressure was then released to atmospheric pressure, and polymerization was carried out at 240°C for 1 hour. When the polymerization was completed, the obtained resin composition was taken out and cut into pellets. The obtained granules were treated with hot water at 95° C., refined, and dried.

[0112] In addition, the injection molding conditions at the time of obtaining the test piece used for the measurement of bending strength etc. are the same as Example 1.

Embodiment 3

[0114] In the same manner as in Example 1, an aqueous dispersion having a cellulose fiber content of 3% by mass was prepared, and 70 parts by mass of the aqueous dispersion of cellulose fibers and 100 parts by mass of nylon 66 salt were stirred and mixed with a mixer until it became a uniform solution. Next, the mixed solution was heated to an internal pressure of 15kgf / cm while stirring at 230°C. 2 . After reaching the pressure, slowly release water vapor while continuing to heat to maintain the pressure. At the point when 280° C. was reached, the pressure was released to normal pressure, and polymerization was further performed for 1 hour. When the polymerization was completed, the obtained resin composition was taken out and cut into pellets. The obtained granules were treated with hot water at 95° C., refined, and dried.

[0115] In addition, the injection molding conditions when obtaining the test piece used for the measurement of bending strength etc. were cylinder t...

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
heat deflection temperatureaaaaaaaaaa
heat deflection temperatureaaaaaaaaaa
Login to View More

Abstract

Disclosed is a polyamide resin composition which is characterized by containing 0.01-50 parts by mass of cellulose fibers having an average fiber diameter of 10 [mu]m or less per 100 parts by mass of a polyamide resin. Also disclosed is a method for producing a polyamide resin composition, which is characterized by mixing a monomer that constitutes a polyamide resin and an aqueous dispersion of cellulose fibers having an average fiber diameter of 10 [mu]m or less and carrying out a polymerization reaction.

Description

technical field [0001] The present invention relates to a polyamide resin composition having improved mechanical properties and heat resistance, and a method for producing the resin composition. Background technique [0002] Resin compositions in which polyamide resins are reinforced with inorganic fillers such as glass fibers, carbon fibers, talc, and clay are known. However, these reinforcing materials have problems that the mechanical properties and heat resistance cannot be improved unless a large amount is added, and that the mass of the resin composition obtained due to the high specific gravity becomes large. [0003] In addition, when glass fiber, carbon fiber, or the like is used as a reinforcing material, there is a problem that a molded article formed from the obtained resin composition becomes large in warpage. In addition, when talc, clay, etc. are used as reinforcing materials, when the obtained resin composition is discarded, these reinforcing materials remai...

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): C08L77/00C08L1/02
CPCC08L2205/16C08L77/02C08L77/00C08L77/06C08L1/04C08L1/02C08L2666/26C08J3/20C08K7/02
Inventor 中井美穗木村圭助
Owner UNITIKA LTD
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