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Ramie fiber modified dibutyl benzenedicarboxylate composite and preparation method thereof

A technology of non-butylene phthalate and butylene terephthalate, applied in the field of ramie fiber modified butylene phthalate composite material and its preparation, can solve the problems of high cost and insufficient tensile strength , to achieve the effects of poor elasticity, enhanced mechanical properties, and high degree of polymerization

Inactive Publication Date: 2017-06-27
SHANGHAI DONGSHENG NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure polybutylene adipate / terephthalate has shortcomings such as insufficient tensile strength and high cost in practical applications, and needs to be modified

Method used

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  • Ramie fiber modified dibutyl benzenedicarboxylate composite and preparation method thereof
  • Ramie fiber modified dibutyl benzenedicarboxylate composite and preparation method thereof
  • Ramie fiber modified dibutyl benzenedicarboxylate composite and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In the present embodiment, calculated by mass parts, the composition and content are as follows:

[0026]

[0027] Above-mentioned formula reacts according to the following steps:

[0028] (1) First immerse the ramie fibers in lye with a mass concentration of 4% (mixing ratio of solid to liquid weight: 1:20), treat them at 25°C for 2 hours, wash out the alkali with water, remove the alkali in an acid bath, and wash with water until neutral , after drying to obtain ramie

[0029] Fiber spare.

[0030] (2) Mix the whiskers with 50ml of absolute ethanol, and ultrasonically disperse for 10 minutes to obtain a uniformly dispersed suspension; add γ-aminopropyltriethoxysilane coupling agent (KH550) (0.5% by mass fraction of whiskers) Dissolve in 50ml of absolute ethanol; mix the homogeneous suspension with the coupling agent solution and reflux at 80°C for 3 hours; cool to room temperature, centrifuge, and dry in a vacuum oven at 80°C

[0031] (3) above-mentioned whisker...

Embodiment 2

[0036] In the present embodiment, calculated by mass parts, the composition and content are as follows:

[0037]

[0038] Above-mentioned formula reacts according to the following steps:

[0039] (1) First, ramie fibers were immersed in lye with a mass concentration of 3% (solid-liquid weight mixing ratio 1:20), treated at 25°C for 3 hours, washed with water, de-alkalied with acid bath, and washed with water until neutralized. After drying, ramie fibers are obtained for future use.

[0040] (2) Mix the whiskers with 50ml of absolute ethanol, and ultrasonically disperse for 10 minutes to obtain a uniformly dispersed suspension; dissolve the titanate coupling agent NZD-201 (0.5% by mass fraction of the whiskers) in 50ml of absolute ethanol; Mix the homogeneous suspension and the coupling agent solution evenly and reflux at 80°C for 3 hours; cool to room temperature, centrifuge and dry in a vacuum oven at 80°C

[0041] (3) above-mentioned whisker, ramie fiber and polyadipate...

Embodiment 3

[0046] In the present embodiment, calculated by mass parts, the composition and content are as follows:

[0047]

[0048] Above-mentioned formula reacts according to the following steps:

[0049] (1) First immerse the ramie fiber in lye solution with a mass concentration of 2.5% (solid-liquid weight mixing ratio 1:20), treat it at 25°C for 3 hours, wash it with water, remove the alkali with acid bath, and wash with water until neutral , after drying, the ramie fiber is obtained for future use.

[0050] (2) Mix the whiskers with 50ml of absolute ethanol, and ultrasonically disperse for 10 minutes to obtain a uniformly dispersed suspension; add γ-aminopropyltriethoxysilane coupling agent (KH550) (0.5% by mass fraction of whiskers) Dissolve in 50ml of absolute ethanol; mix the homogeneous suspension with the coupling agent solution and reflux at 80°C for 3 hours; cool to room temperature, separate by centrifugation, and dry in a vacuum oven at 80°C

[0051] (3) above-mention...

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Abstract

The invention discloses a ramie fiber modified polyadipate / butylene terephthalate composite material and a preparation method thereof. The components of the composite material are: 100 parts of polyadipate / butylene terephthalate, 1-20 parts of ramie fiber, 5-10 parts of whiskers, 0.5-2 parts of lubricant, 0.1-1 part of heat stabilizer . Through the modification of the method of the present invention, the crystallization length of ramie fiber is effectively reduced, its elongation at break is improved, and the modification requirements of poly(butylene adipate / terephthalate) are met; the enhancement of poly(adipate / terephthalate) In addition to the mechanical properties of the butylene dicarboxylate material, the production cost is also effectively reduced.

Description

technical field [0001] The invention relates to a butylene phthalate composite material, in particular to a ramie fiber modified butylene phthalate composite material and a preparation method thereof. Background technique [0002] Polybutylene adipate / terephthalate is a thermoplastic biodegradable plastic, a copolymer of butylene adipate and butylene terephthalate, which has the characteristics of both PBA and PBT. Good ductility and elongation at break, as well as good heat resistance and impact properties; in addition, it also has excellent biodegradability, and is currently one of the most active biodegradable plastics in research and one of the best degradable materials in the market. It has a wide range of applications in industry, agriculture, clothing, packaging and other fields. However, pure polybutylene adipate / terephthalate has disadvantages such as insufficient tensile strength and high cost in practical applications, and needs to be modified. Contents of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L97/02C08K9/06C08K9/04C08K7/08C08K5/098
CPCC08L67/02C08L2205/16
Inventor 施晓旦杨刚金霞朝
Owner SHANGHAI DONGSHENG NEW MATERIALS
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