Biodegradable resin composition for modifying toughness and heat resistance and preparation method thereof

A biodegradable resin and composition technology, applied in the field of biodegradable resin composition and its manufacture, can solve the problems such as the toughness and heat resistance of biodegradable resin, and achieve the purpose of reducing environmental burden, reducing manufacturing cost, increasing The effect of application range

Inactive Publication Date: 2008-03-19
CHITEC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there are a lot of technical research and development aimed at improving these deficiencies, but they cannot solve the major technical bottleneck problem of improving the toughness and heat resistance of biodegradable resins at the same time.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] The thermoplastic elastomer is pretreated first. Get the styrene-ethylene-butadiene-styrene copolymer of 80% weight and the paraffin processing oil of 20% weight and place in the high-speed mixer (manufactured by Taiwan Qiaowei Machinery Co., Ltd., model: CW-30L), in Do high-speed mixing in a closed tank with a rotating speed of 1200rpm and a temperature of 55°C. After about 20 minutes, the processing oil and styrene-ethylene-butadiene-styrene copolymer can reach a uniformly mixed state, take it out and let it stand for more than 8 hours for later use.

[0048] Take 100 parts by mass of polylactic acid, 10 parts by mass of pretreated styrene-ethylene-butadiene-styrene copolymer, 5 parts by mass of talcum powder, and 0.5 parts by mass of stearic acid, and stir them in a dry blending manner Uniformly, then import the twin-screw extruder (manufactured by Coperon Keya Machinery Co., Ltd., Germany, model: STS-35, screw diameter 35mm, aspect ratio 36) with a volumetric feede...

Embodiment 2-12

[0051] Using the same melt processing method and conditions described in Example 1, changing the different mixing ratios of the resin composition to obtain resin particles, and making a standard test piece conforming to the ASTM specification for performance measurement, the obtained results Also listed in Table 2.

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PUM

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Abstract

The invention provides a biodegradable resin component with toughness and heat resistance improved and a method for preparing the same, wherein the resin component contains 100 parts by mass of biodegradable resin, 1-40 parts by mass of thermoplastic elastomer, and 0.1-30 parts by mass of inorganic additive, and preferentially contains 3-25 parts by mass of flame retardant, 0.1-10 parts by mass of performance reinforcing agent and 0.1-10 parts by mass of processing aid; the resin component is granulated by a double screw extruder after melting mixing, the forming processing cycle of the resin component is short during injection forming, and after treatment for 10 min at 110DGE C, the lzod notched impact strength is higher than 30J/m, and the heat deformation temperature is higher than 90DGE C.

Description

technical field [0001] The present invention provides a biodegradable resin composition with improved toughness and heat resistance and a manufacturing method thereof, which can be prepared through known composition mixing and polymer melt kneading (or kneading) manufacturing procedures. The resin composition has the characteristics of significantly improving toughness and heat resistance, and can be easily incorporated into the process of general plastic products, and is used in the manufacture of electronic products and housings of household appliances, office supplies, stationery, architectural decoration, etc. . Background technique [0002] Since most of the plastic materials nowadays do not have the characteristics of natural decomposition, it will inevitably lead to the accumulation of waste plastics after being discarded, which will become a heavy burden on waste disposal; on the other hand, because plastic products are often used in composite materials The method i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L35/00C08K5/521B29C47/36B29C47/82B29B9/12C08L25/08C08L23/16C08L9/00C08L7/00C08L27/06C08L75/04C08L91/00C08L51/00C08K3/00
Inventor 朱明毅简福明
Owner CHITEC TECH
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