Polyethylene 2,5-furandicarboxylate/polyadipate-butylene terephthalate composite material and preparation method thereof

A technology of ethylene furandicarboxylate and butylene phthalate, which is applied in the field of composite materials, can solve problems such as poor toughness and impact strength, improve toughness and impact strength, enhance blends, The effect of improving interface compatibility

Active Publication Date: 2020-06-09
芜湖万隆新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of polyethylene 2,5-furandicarboxylate / polyadipate-butylene terephthalate in order to solve the problem of poor toughness and impact strength of existing PEF materials Ester composite material and its preparation method

Method used

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Examples

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preparation example Construction

[0028] According to the present invention, the preparation method of described auxiliary agent preferably comprises:

[0029] Step 1: Mix the carrier, the silane coupling agent with isocyanate at the end and the organic solvent, and react at 30-130°C for 1-8h, preferably at 80-95°C for 5-7h, and the reaction product dispersion After rotary evaporation, solid washing and filtration, a surface-modified carrier is obtained; the carrier is nano-silica and / or nano-titanium dioxide, and the particle size is 1-100nm; preferably 20-50nm; the end has The silane coupling agent for isocyanate is preferably 3-isocyanatopropyltriethoxysilane, 3-isocyanatopropyltrimethoxysilane, 4-isocyanatobutyltriethoxysilane or 4-isocyanatobutyl One or more in base triethylmethoxysilane; Described organic solvent is preferably toluene, benzene, chloroform, tetrahydrofuran, cyclohexane, ethyl acetate, o-chlorophenol, phenol, trifluoroacetic acid, N, N-dimethylformamide or N, N-dimethylformamide; more pre...

Embodiment 1

[0034] The preparation of embodiment 1 auxiliary agent

[0035] In the reactor, add dry nano-silica, 3-isocyanatopropyl triethoxysilane and 200ml toluene with a particle size of 20nm, and the mass of 3-isocyanatopropyl triethoxysilane is nanometer dioxide 30% of the mass of silicon, feed nitrogen as a protective gas, stir and sonicate for 30 minutes, heat to 95 ° C, continue to stir and react for 300 minutes, the reaction product dispersion is rotatively evaporated, and after the solid is washed and filtered, the surface-modified nanometer Silicon oxide;

[0036] Disperse the obtained surface-modified nano-silica in dry o-chlorophenol, heat to 90 ° C, and drop the weight-average molecular weight of 1.5 × 10 3 polyethylene 2,5-furandicarboxylate o-chlorophenol solution (the quality of polyethylene 2,5-furandicarboxylate is 15% of the quality of nano-silica after modification), after continuing to react for 240min, Dropping weight average molecular weight is 2.0×10 3 The poly...

Embodiment 2

[0037] The preparation of embodiment 2 auxiliary agent

[0038] In the reactor, add dry nano-silica, 3-isocyanatopropyl triethoxysilane and 200ml toluene with a particle size of 20nm, and the mass of 3-isocyanatopropyl triethoxysilane is nanometer dioxide 30% of the mass of silicon, feed nitrogen as a protective gas, stir and sonicate for 30 minutes, heat to 95 ° C, continue to stir and react for 300 minutes, the reaction product dispersion is rotatively evaporated, and after the solid is washed and filtered, the surface-modified nanometer Silicon oxide;

[0039] Disperse the obtained surface-modified nano-silica in dry o-chlorophenol, heat to 90°C, drop the weight-average molecular weight of 1×10 3 polyethylene 2,5-furandicarboxylate o-chlorophenol solution (the quality of polyethylene 2,5-furandicarboxylate is 15% of the quality of nano-silica after modification), after continuing to react for 180min, Dropping weight average molecular weight is 1×10 3 The poly(butylene ad...

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Abstract

The invention provides a poly(2,5-ethylene glycol furandicarboxylate) / polyadipic acid-polybutylene terephthalate composite material and a preparation method of same, and belongs to the field of composite materials, wherein the composite material includes, by weight, 100 parts of poly(2,5-ethylene glycol furandicarboxylate), 0.01-99.99 parts of polyadipic acid-polybutylene terephthalate, and 0.01-60.00 parts of an additive, which is prepared by modifying a supporter with a silane coupling agent of which a terminal has an isocyanate radical and successively grafting the supporter with poly(2,5-ethylene glycol furandicarboxylate) and polyadipic acid-polybutylene terephthalate. The invention also provides the preparation method of the poly(2,5-ethylene glycol furandicarboxylate) / polyadipic acid-polybutylene terephthalate composite material. The composite material has excellent toughness and high anti-impact strength.

Description

technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a polyethylene 2,5-furandicarboxylate / polyadipate-butylene terephthalate composite material and a preparation method thereof. Background technique [0002] Polyethylene 2,5-furandicarboxylate (PEF) is a new type of polyester material based on renewable resources, and its raw materials 2,5-furandicarboxylic acid and ethylene glycol can be derived from nature. PEF has good thermal properties. The glass transition temperature of PEF is 84°C, the melting point is 211°C, and the initial thermal decomposition temperature is 370°C. The glass transition temperature of PET is 68°C, the melting point is 254°C, and the initial thermal decomposition temperature is 407°C. , the thermal properties of PEF and PET are similar; PEF has good mechanical properties, the tensile modulus is 2070Mpa, the tensile modulus is 66.7Mpa, and the elongation at break is 4.2%; the barrier property...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K9/06C08K3/36
CPCC08K2201/011C08L67/02C08L2205/025C08K9/06C08K3/36
Inventor 周光远姜敏张强王瑞
Owner 芜湖万隆新材料有限公司
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