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Full-biology-base composite material

A composite material and all-biological technology, which is applied in the field of all-bio-based benzoxazine copolymer resin as a substrate, can solve the problem that there is no all-bio-based benzoxazine copolymer resin, and no polymer substrate technology invention or literature report has been found. And other issues

Inactive Publication Date: 2012-08-01
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And so far there is no report about all-bio-based benzoxazine copolymer resins, nor any technical inventions or literature reports using all-bio-based benzoxazine copolymer resins as polymer substrates for composite materials

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0016] ①Synthesis of monomer 1: furfurylamine (4.40L, 50mol), paraformaldehyde (3.00kg, 100mol), stirred at room temperature until the solid dissolved, added guaiacol (6.21kg, 50mol), stirred and heated to 70°C, reacted After 1 hour, a yellow-white solid crude product was obtained, which was dissolved in absolute ethanol and purified by recrystallization. The solvent was removed by vacuum drying to obtain a white solid product (yield 92%), which was proved to be the desired benzoxazine product by detection.

[0017] ②Synthesis of monomer 2: react furfurylamine (4.40L, 50mol) with levulinic acid (2.90kg, 25mol) under acidic conditions to synthesize bisfurfurylaminovaleric acid, then add guaiacol (6.21kg, 50mol ) to obtain a white solid product (yield 91%) as described above. The product was characterized and proved to be the desired benzoxazine product.

[0018] ③Composite material preparation and performance characterization: the above two monomers were copolymerized in a rat...

Embodiment 2

[0020] ①Synthesis of monomer 1: Stearylamine (13.48kg, 50mol) was dissolved in 201 absolute ethanol, stirred for 30 minutes, formaldehyde solution (37wt%, 7.50L, 100mol), the temperature was controlled below 10°C, and stirred for 20 minutes. Add guaiacol (6.21kg, 25mol), stir for 25 minutes, raise the temperature to 70°C, and react for 6 hours to obtain a yellow viscous product, which is dissolved in absolute ethanol and purified by recrystallization, and the product obtained by vacuum drying is a light yellow solid. Yield 88%. Various characterizations of the product proved to be the desired benzoxazine product.

[0021] ②Synthesis of monomer 2: react furfurylamine (4.40Ll, 50mol) with levulinic acid (2.90kg, 25mol) under acidic conditions to synthesize difurfurylaminovaleric acid, then add cardanol (15.08kg, 50mol) to press The above method produces dark reddish-brown liquid product with a yield of 91%. The product was characterized and proved to be the desired benzoxazine...

Embodiment 3

[0024] According to embodiment 1, only change the phenol in 1. monomer synthesis into phloroglucinol (2.10kg, 16.7mol) and the product obtained is a brownish yellow solid (90% yield), and then use the same method with 2. single Composite materials were prepared from the body, and various performance tests were carried out on the samples. The results showed that the tensile modulus was 3.25GPa, the tensile strength was 43MPa, and the elongation at break was 1.61%; the flexural modulus was 3.23GPa, and the flexural strength was 128MPa; the impact strength was 3.27KJ / m 2 ; The glass transition temperature is 255°C; under the conditions of heating at 800°C and nitrogen protection, the residual carbon rate of the sample after decomposition is 52%.

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Abstract

The invention discloses a prepared composite material, which relates to a full-biology-base composite material, in particular to a full-biology-base composite material, which is prepared by compounding benzoxazine copolymerized resin serving as a substrate and biological and inorganic fillers. On the aspect of development of natural renewable resources, the composite material is prepared by adopting a die pressing method; and the resin of the substrate is prepared with solvent-free and solvent methods. The researching process is as follows: a full-biology-base benzoxazine monomer with high performance is synthesized by undergoing a Mannich reaction on pure natural raw materials including furfuryl amine, guaiacol and paraformaldehyde or formaldehyde. A monomer copolymer is taken as a substrate, and the full-biology-base composite material is compounded by adding a filler. As proved by a result, the composite material has the advantages of superior impact resistance, high hoisting strength, high thermal resistance and flame retardance.

Description

technical field [0001] The invention relates to a kind of all-bio-based composite material, which uses all-bio-based benzoxazine copolymer resin as a base material. Specifically, polymer materials are synthesized through non-petroleum-based routes, benzoxazine resins are synthesized from natural renewable resources as raw materials, and then copolymerized by two or more resins. Its significance lies in the development and utilization of natural renewable resources, which belongs to the research category of environmentally friendly materials. Background technique [0002] Composite materials are materials with new properties composed of two or more different materials through physical or chemical methods. Various materials learn from each other in terms of performance and produce synergistic effects, so that the comprehensive performance of the composite material is better than that of the original constituent materials to meet various requirements. The base material used i...

Claims

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Application Information

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IPC IPC(8): C08L79/04C08L97/02C08G73/06C08K7/14C08K3/26
Inventor 刘向东王彩飞孙佳勤
Owner ZHEJIANG SCI-TECH UNIV
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