Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of mulberry twig bast fiber-modified poly(butylene adipate/terephthalate) composite material and product obtained through preparation method

A technology of butylene terephthalate and bast fiber is applied in the field of preparation of mulberry bast fiber modified polyadipate/butylene terephthalate composite material, which can solve environmental pollution and resource value It has not been well developed and other problems to achieve the effect of reducing production costs, superior application value and good market potential

Inactive Publication Date: 2017-01-18
SHANGHAI DONGSHENG NEW MATERIALS
View PDF6 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional sericulture production, a small part is used as fuel, and most of the mulberry branches are discarded, which not only leads to the poor development of its resource value, but also causes a certain degree of pollution to the environment

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
  • Preparation method of mulberry twig bast fiber-modified poly(butylene adipate/terephthalate) composite material and product obtained through preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] The first aspect provides a preparation method of mulberry bast fiber modified polyadipate / butylene terephthalate composite material, which includes the following steps:

[0034] (1) The mulberry bast fiber is immersed in a lye with a mass concentration of 1~5%, soaked at 20~25℃ for 2~3 hours for alkalization, washed with water, alkalized by acid bath, and then washed to Neutral, alkalinized mulberry bast fiber is obtained after drying;

[0035] In this step, the mulberry bast fiber is alkali-modified, which can effectively reduce the interface resistance, improve its compatibility with the matrix material, and better meet the modification of poly(adipic acid / butylene terephthalate) demand.

[0036] (2) Mix the whiskers with absolute ethanol, and obtain a uniformly dispersed whisker suspension after ultrasonic dispersion; dissolve the coupling agent in absolute ethanol to obtain an ethanol solution of the coupling agent; then, suspend the whiskers The solution is mixed with ...

Embodiment 1

[0057] Preparation of mulberry bast fiber modified polyadipate / butylene terephthalate composite material:

[0058] Polyadipate / butylene terephthalate 100 parts

[0059] Mulberry bast fiber 5 parts

[0060] 15 parts of calcium sulfate whiskers

[0061] Zinc stearate 0.5 parts

[0062] 0.2 part of maleic anhydride

[0063] Coupling agent KH550 0.075 parts

[0064] According to the above mass ratio, the preparation steps are as follows:

[0065] (1) The mulberry bast fiber is immersed in lye with a mass concentration of 4%, soaked at 25°C for 2 hours for alkalization, washed with water to remove alkali, acid bath dealkalized, washed with water to neutrality, and dried. Obtain alkalized mulberry branch bast fiber;

[0066] (2) Mix the whiskers with 50ml of absolute ethanol, and ultrasonically disperse for 8 minutes to obtain a uniformly dispersed whisker suspension; dissolve γ-aminopropyltriethoxysilane coupling agent KH550 in 50ml of absolute ethanol to obtain The ethanol solution of the cou...

Embodiment 2

[0071] Preparation of mulberry bast fiber modified polyadipate / butylene terephthalate composite material:

[0072] Polyadipate / butylene terephthalate 100 parts

[0073] Mulberry bast fiber 10 parts

[0074] 10 parts of calcium sulfate whiskers

[0075] Zinc stearate 0.5 parts

[0076] 0.2 part of maleic anhydride

[0077] Coupling agent KH550 0.05 parts

[0078] According to the above mass ratio, the preparation steps are as follows:

[0079] (1) The mulberry bast fiber is immersed in a lye with a mass concentration of 3%, soaked at 20°C for 3 hours for alkalization, washed with water to remove alkali, acid bath dealkalized, washed with water to neutrality, and dried. Obtain alkalized mulberry branch bast fiber;

[0080] (2) Mix the whiskers with 50ml of absolute ethanol and ultrasonically disperse for 10 minutes to obtain a uniformly dispersed whisker suspension; dissolve the γ-aminopropyltriethoxysilane coupling agent KH550 in 50ml of absolute ethanol to obtain The ethanol solution of 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

No PUM Login to View More

Abstract

The invention provides a preparation method of a mulberry twig bast fiber-modified poly(butylene adipate / terephthalate) composite material and a product obtained through the preparation method. The preparation method comprises the steps that alkalized mulberry twig bast fiber is prepared firstly to effectively reduce interfacial resistance and improve the compatibility with a matrix material, and crystal whiskers subjected to coupling modification are obtained; the alkalized mulberry twig bast fiber, the crystal whiskers subjected to coupling modification, poly(butylene adipate / terephthalate), a lubricant and a heat stabilizer are together added into a high-speed blender to be mixed, extrusion is conducted for granulation, and the product is obtained. The mulberry twig bast fiber-modified poly(butylene adipate / terephthalate) composite material prepared through the method shows higher tensile strength and elongation at break, and therefore the material has the excellent application value and good market potential.

Description

Technical field [0001] The invention relates to a method for preparing a completely biodegradable polymer composite material, in particular to a method for preparing a mulberry bast fiber modified polyadipate / butylene terephthalate composite material and the preparation method The product made. Background technique [0002] Poly-adipate / butylene terephthalate (PBAT) is a thermoplastic biodegradable plastic. It is a copolymer of butylene adipate and butylene terephthalate, which has the characteristics of PBA and PBT. It not only has good ductility and elongation at break, but also good heat resistance and impact performance; in addition, it also has excellent biodegradability, which is very active in the research of biodegradable plastics and the best degradable material in the market. one. Therefore, relying on its excellent processing performance, poly(butylene terephthalate) has a wide range of applications in industry, agriculture, household, packaging and other fields. [0...

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): C08L67/02C08L97/02C08K9/06C08K9/04C08K7/08C08K5/098C08K5/1539
CPCC08L67/02C08L2205/03C08L2205/16C08L97/02C08K9/06C08K7/08C08K5/098C08K5/1539C08L91/00C08K9/04
Inventor 施晓旦杨刚邵威金霞朝
Owner SHANGHAI DONGSHENG NEW MATERIALS