Material capable of completely biodegrading and preparation method thereof

A technology of biodegradable materials and copolymers, applied in the field of fully biodegradable materials and their preparation, can solve the problems of white pollution, poor water resistance, etc., and achieve the effects of cost reduction, heat resistance improvement and strength increase

Inactive Publication Date: 2009-09-02
深圳市未名北科环境材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a fully biodegradable material and its preparation method to overcome the problem of white pollution caused by current general-purpose plastic products that cannot be degraded or partially degraded; to overcome the defects of poor weather resistance and water resistance of degraded plastics ; Reduce the production cost of fully biodegradable plastics and improve their overall performance; improve the compatibility and processing properties of various materials in biodegradable plastics, and optimize the production process

Method used

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  • Material capable of completely biodegrading and preparation method thereof
  • Material capable of completely biodegrading and preparation method thereof
  • Material capable of completely biodegrading and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1 (injection molded product):

[0054] (1) Composition and content composition: 100 parts of PBS (produced by Anqing Hexing Chemical Industry, injection molding grade), 40 parts of PLA (produced by NatureWork, brand 3051D), compound modified tapioca starch (100 mesh, hydroxypropyl substitution degree 0.06-0.07%) ) 40 parts, 30 parts of inorganic filler (talc powder, 5000 mesh), 0.5 part of coupling agent (silane coupling agent KH560), 1.0 part of functional additive vinyl bis stearamide (EBS). The amounts of the above materials are by weight.

[0055] (2) Pretreatment of raw materials:

[0056] ① Drying: In drying equipment such as a hot air oven, the drying temperature of PBS and PLA is 80°C for 4 hours; the drying temperature for starch and inorganic fillers is 105°C for 4 hours;

[0057] ②Mixing: Stir each prepared raw material in a mixing mixer for 2 minutes at high speed, 3 minutes at low speed, and keep the temperature at room temperature (20-30°C) ...

Embodiment 2

[0067] Embodiment 2 (blister product):

[0068] (1) Composition and content: 100 parts of PBSA (produced by Mitsubishi Chemical, trade mark AD92W), 5 parts of PLA (produced by NatureWork, trade mark 3051D), compound modified tapioca starch (100 mesh, hydroxypropyl substitution degree 0.06-0.07%) 10 10 parts, 10 parts of inorganic filler (talc powder, 5000 mesh), 0.1 part of coupling agent (silane coupling agent KH560), 0.1 part of functional additive vinyl bis stearamide (EBS). The amounts of the above materials are by weight.

[0069] (2) Pretreatment of raw materials:

[0070] ①Drying: In drying equipment such as a hot air oven, the drying temperature of PBSA and PLA is 80°C, and the drying time is 3 hours; the drying temperature of starch and inorganic filler is 105°C, and the drying time is 3 hours;

[0071] ②Mixing: Stir each prepared raw material in a mixing mixer for 1 minute at high speed, 2 minutes at low speed, and keep the temperature at room temperature (20-30°...

Embodiment 3

[0079] Embodiment 3 (blown product):

[0080] (1) Composition and content composition: 100 parts of PBSA (produced by Mitsubishi Chemical, brand AD92W), 20 parts of PLA (produced by NatureWork, brand 3051D), compound modified tapioca starch (100 mesh, hydroxypropyl substitution degree 0.06-0.07%) 15 20 parts, 20 parts of inorganic filler (talc powder, 5000 mesh), 0.2 part of coupling agent (silane coupling agent KH560), 0.5 part of functional additive vinyl bis stearamide (EBS). The amounts of the above materials are by weight.

[0081] (2) Pretreatment of raw materials:

[0082] ①Drying: In drying equipment such as a hot air oven, the drying temperature of PBSA and PLA is 80°C, and the drying time is 3 hours; the drying temperature of starch and inorganic filler is 105°C, and the drying time is 3 hours;

[0083] ②Mixing: Stir each prepared raw material in the mixing mixer for 2 minutes at high speed, 2 minutes at low speed, and keep the temperature at room temperature (20...

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Abstract

The invention relates to a material capable of completely biodegrading, containing the following parts by weight:100 of polyester resin, 5-100 of polylactic resin and the multipolymer thereof, 10-80 of compounding converted starch, 10-60 of inorganic fillers and 0.1-0.9 of resin acceptor, wherein the polyester resin is at least one of polybutylene succinate resin, polybutylene adipate resin and the multipolymer thereof. The invention also provides a preparation method of the material. The material capable of completely biodegrading can combine the advantages of each component and has high intensity, modules, elongation at break and toughness, good heat resistance, and the like, thereby meeting the property requirements of a plurality of plastic products in the market and in particular products, such as non-returnable containers, mess kits, agricultural films, and the like, which cause serious white pollution, retaining the complete biodegradability of the material and reducing the production cost under the precondition of no influence on the property requirement.

Description

【Technical field】 [0001] The invention relates to the field of polymer materials, in particular to a fully biodegradable material and a preparation method thereof. 【Background technique】 [0002] Because of its light weight, good mechanical properties, water resistance, chemical corrosion resistance, beautiful appearance, convenient manufacturing and installation, and low price, plastic products have quickly replaced metal, wood, glass and even paper products to a large extent. Widely used in various sectors of the national economy. The birth of plastic has indeed brought a lot of convenience to people's daily life. However, with the development of the plastics industry to a certain extent, some hidden dangers of its own are gradually exposed. The chemical stability of plastic makes it almost impossible to degrade in nature. There is more and more plastic waste, and the residual film of plastic waste discarded in the environment has increased sharply, almost to the extent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L3/04C08K13/02C08K3/34C08K3/26C08K3/30C08K5/544C08K5/5415B29B9/06
Inventor 刘钊居学成尹建伟余汉成刘勇翟茂林
Owner 深圳市未名北科环境材料有限公司
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