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Whole-biomass-based resin composition

A technology of base resin and composition, applied in the field of full bio-based resin composition, can solve the problems of hydrolysis resistance, destructive biodegradability, overall performance defects, etc., and achieve superior biodegradation performance, high toughness and Effects of hydrolysis resistance and high hydrolysis resistance

Inactive Publication Date: 2016-08-31
浙江谷林生物材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the content disclosed in the above prior art, it can be seen that in order to improve the hydrolysis resistance of polylactic acid materials, petroleum-based carbodiimide anti-hydrolysis agents are mostly used, which destroys the biodegradability and renewable advantages of polylactic acid. It has a certain impact on the environmental load; although the patent of Chinese application number 201180028896.9 discloses the preparation method and use of bio-based carbodiimide, no further research has been done on the application of polylactic acid materials for hydrolysis resistance
In terms of improving the flexibility of polylactic acid, the information disclosed in the prior art is relatively detailed. In particular, the patent of Chinese application number 201310108172.6 discloses the use of bio-based polyester materials to improve the toughness of polylactic acid, although this prior art solves the problem of polylactic acid The problem of brittleness of lactic acid does not involve a solution to hydrolysis resistance, and this modified polylactic acid composition has defects in overall performance

Method used

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  • Whole-biomass-based resin composition
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  • Whole-biomass-based resin composition

Examples

Experimental program
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Effect test

preparation example Construction

[0022] A kind of preparation method of bio-based carbodiimide (biopolyols proportion is 54%), concrete steps are as follows:

[0023] Add 200 grams of Stabaxol P220 polycarbodiimide (a kind of polycarbodiimide based on tetramethylxylylene diisocyanate produced by Rhine Chemical, about 14% NCN content) to a nitrogen environment, and add 238 grams of polycarbodiimide when heated to 140 ° C. Agrol2.0 bio-based polyol (a bio-based polyol with an OH number of 74.5 produced by Cargrill Company), start to stir the mixture, monitor the NCO content in the mixture until the NCO content drops to zero, and the reaction is completed to obtain a bio-based polyol 54% bio-based carbodiimide.

Embodiment 1

[0025] An all-bio-based resin composition, proportioned according to the weight of the following components: 100 parts of polylactic acid (Hisun Biomaterials REVODE190), 2 parts of bio-based carbodiimide (54% of bio-polyols) , 5 parts of talc powder (3000 mesh), 2 parts of polycaprolactone; the mixture with good ratio is placed in a twin-screw extruder for blending and granulation, and the temperature settings of each section of the screw are respectively: 190 ° C, 200 ° C, 210°C, 220°C, 205°C, speed: 50rpm, after granulation, put it in the injection molding machine for injection molding, the injection temperature is 205°C, the injection pressure is 100mpa, the cooling time of the melt in the mold is 38 seconds, the mold temperature Set at 100°C to obtain a fully bio-based resin composition. The mechanical properties and hydrolysis resistance of the composition were tested, and the results are shown in Table 1 and Table 2.

Embodiment 2

[0027]The whole bio-based resin composition is proportioned according to the weight parts of the following components: 100 parts of polylactic acid (Hisun Biomaterials REVODE190), 2 parts of bio-based carbodiimide (54% of bio-polyols), talcum powder (3000 mesh) 5 parts, polybutylene succinate 10 parts; put the mixture with a good ratio in the twin-screw extruder for blending and granulation, and the temperature settings of each section of the screw are: 190 ° C, 200 ° C , 210°C, 220°C, 205°C, speed: 50rpm, after granulation, put it in the injection molding machine for injection molding, the injection temperature is 205°C, the injection pressure is 100mpa, the cooling time of the melt in the mold is 38 seconds, the mold The temperature was set at 100° C. to obtain a fully bio-based resin composition. The mechanical properties and hydrolysis resistance of the composition were tested, and the results are shown in Table 1 and Table 2.

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Abstract

The invention discloses a whole-biomass-based resin composition and belongs to the field of environment-friendly materials. The whole-biomass-based resin composition disclosed by the invention comprises a whole-biomass degradable material polylactic acid, a biomass-based carbodiimides anti-hydrolysis agent, an inorganic talcum powder type nucleating agent and a biomass-based polyester material type toughening agent with a flexible molecular chain; the whole-biomass-based resin composition has high toughness and high anti-hydrolysis property; the composition has excellent biodegradability; organic macromolecular parts in the material can be completely degraded; meanwhile, the renewable characteristic of a resin composition material is kept.

Description

technical field [0001] The invention belongs to the field of environment-friendly materials, and in particular relates to an all-bio-based resin composition, which has good hydrolysis resistance and toughness. Background technique [0002] Most of the plastic products used in daily life come from petroleum-based. Due to concerns about the depletion of petroleum resources and the global warming effect caused by the increase of carbon dioxide in the air in recent years, it is more and more necessary to reduce the use of petroleum-based plastics; However, bio-based plastics carry the advantages of renewable and biodegradable raw materials. If they can be applied and used on a large scale to replace some petroleum-based plastics, it will be a very good choice to reduce the environmental load while reducing the consumption of petroleum resources. ; In the field of bioplastics, the application of polylactic acid materials in the fields of daily necessities, spinning, and other pla...

Claims

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Application Information

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IPC IPC(8): C08L67/04C08L75/04C08L67/02C08K3/34B29B9/06
CPCC08L67/04B29B9/06C08L2201/06C08L2205/025C08L2205/03C08L2205/24
Inventor 郭爱妹
Owner 浙江谷林生物材料有限公司
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