Biomass based polyamide resin

A polyamide resin, biomass technology, applied in the field of polyamide resin, can solve the problems of poor thermal stability, poor molding cycle, poor thermodynamic properties, etc., and achieve excellent mechanical properties, excellent thermodynamic properties, and high chemical resistance. medicinal effect

Inactive Publication Date: 2013-01-02
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

They have good properties, such as chemical corrosion resistance, good flexibility, and dimensional stability, etc., but their more obvious defects are poor thermodynamic properties (see patent literature: CN1214349)
[0004] Compared with nylon-6 or nylon-66, nylon-56 produced from biomass raw materials has roughly the same heat resistance and mech

Method used

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  • Biomass based polyamide resin
  • Biomass based polyamide resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Add 592.8g (3.8mol) furan-2,5-dicarboxylic acid, 33.2g (0.2mol) terephthalic acid, 688g (4mol) 1,10-decanediamine, 2.62 (0.12mol) benzene in 3L autoclave Formic acid, 2.62g (0.2wt% based on the total amount of raw materials) sodium hypophosphite monohydrate, 0.5L deionized water, nitrogen purging and then heating up. While stirring, the temperature was raised to 215° C. over about 2 hours, and the pressure inside the autoclave was raised to 2 MPa at this time. The reaction was continued under this condition for 2 hours, then the temperature was raised to 240° C., and kept under this condition for 2 hours, water vapor was slowly removed, and the pressure was maintained at 2 MPa for the reaction. Next, the pressure was lowered to 1 MPa over 1 hour, and the reaction was further carried out for 1 hour to obtain a prepolymer having a relative viscosity of 1.6.

[0052] The obtained prepolymer was dried under reduced pressure at 80°C for 20 hours, crushed to a particle size ...

Embodiment 2

[0054] Example 1 was repeated, except that the molar ratio of furan-2,5-dicarboxylic acid to terephthalic acid was 75:25. The results are shown in Table 1.

Embodiment 3

[0056] Example 1 was repeated except that the molar ratio of furan-2,5-dicarboxylic acid to terephthalic acid was 50:50. The results are shown in Table 1.

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Abstract

The invention discloses a biomass-based semi-aromatic polyamide copolymer having the advantages of excellent thermal property and low water absorption rate. The biomass-based polyamide resin contains a furan diacid unit (a), a terephthalic acid unit (b), a biomass-based 1,10-decamethylene diamine unit (c), and an aliphatic diamine unit (c) with the carbon number of above 4 except the unit (c), wherein the content of the unit (a) is 50-98mol% of the total amount of the unit (a) and the unit (b), and the content of the unit (d) is 0-30mol% of the total amount of the unit (c) and the unit (d). The copolymer has excellent physical and mechanical performance, can be used in engineering plastics, and also can be used in other industrial materials and materials for manufacturing electrical and electronic devices.

Description

technical field [0001] The invention relates to a polyamide resin, in particular to a biomass-based semi-aromatic polyamide with excellent thermodynamic properties. Background technique [0002] So-called fossil raw materials such as petroleum have been used as raw materials for polyamide resins. However, in order to prevent global warming by suppressing carbon dioxide emissions and to build a recycling society, it is desired to replace the raw materials of polyamide resins with biomass-derived raw materials. [0003] Nylon-11 and nylon-12 are known as polyamide resins produced using biomass-derived raw materials. They have good properties, such as chemical corrosion resistance, good flexibility, and dimensional stability, etc., but their relatively obvious defects are poor thermodynamic properties (see patent document: CN1214349). [0004] Compared with nylon-6 or nylon-66, nylon-56 produced from biomass raw materials has roughly the same heat resistance and mechanical and...

Claims

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Application Information

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IPC IPC(8): C08G69/40C08L77/06D01F6/80
Inventor 曹晓秀夏振新
Owner TORAY FIBER RES INST(CHINA) CO LTD
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