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A kind of polylactic acid/abs alloy material and preparation method thereof

An alloy material and polylactic acid technology are applied in the field of polylactic acid/ABS alloy material and its preparation, green-based high-performance polylactic acid/ABS alloy material and its preparation field, which can solve the problem that the mechanical properties of the material have not been greatly improved and the preparation Due to the large size of the material phase region and the lack of compatibility, the effects of improved impact resistance, good biodegradability, high hardness and high strength are achieved.

Active Publication Date: 2017-02-22
HANGZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Non-patent literature (Euro Polym J2009; 45:738–746) prepared polymer alloy materials by melt blending polylactic acid and ABS. However, due to the lack of compatibility between polylactic acid and ABS, the prepared materials had large phase domains and poor interface adhesion. Poor, so the mechanical properties of the material have not been greatly improved

Method used

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  • A kind of polylactic acid/abs alloy material and preparation method thereof
  • A kind of polylactic acid/abs alloy material and preparation method thereof
  • A kind of polylactic acid/abs alloy material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～8

[0049] After PLA-1, ABS-1, ABS-2, ABS-3, ABS-4 and the third component (MMA-GMA-g-(PMMA)) were dried in a vacuum oven at 80°C for 24 hours, different grades were used ABS was melt-blended with PLA-1 and the third component respectively according to the composition ratio in Table 1; the three raw materials were mixed and stirred at room temperature and then added to the internal mixer. The temperature of the internal mixer was 190°C, and the screw speed was set at 50rpm. , Discharge after banburying for 10 minutes.

[0050] The above mixed samples were hot-pressed into a sheet with a thickness of 0.5mm in a hot press at 200°C, and a standard test sample was prepared with a standard dumbbell-shaped punching knife for performance testing. The results are shown in Table 1.

Embodiment 9

[0061] After PLA-2, ABS-3 and the third component (MMA-GMA-g-(PMMA)) were dried in a vacuum oven at 80°C for 24 hours, 50 g of PLA-2, 50 g of ABS-3 and 3 g The third component (MMA-GMA-g-(PMMA)) was mixed and added to the internal mixer. The temperature of the internal mixer was 190° C., the screw speed was set at 50 rpm, and the material was discharged after internal mixing for 10 minutes.

[0062] The above mixed samples were hot pressed into a sheet with a thickness of 0.5mm in a hot press at 200°C, and a standard test sample was prepared with a standard dumbbell-shaped punching knife for performance testing.

Embodiment 10

[0064] After PLA-1, PLA-2, ABS-3 and the third component (MMA-GMA-g-(PMMA)) were dried in a vacuum oven at 80°C for 24 hours, 25 grams of PLA-1, 25 grams of PLA- 2. 50 grams of ABS-3 and 3 grams of the third component (MMA-GMA-g-(PMMA)) are mixed and added to the internal mixer. The temperature of the internal mixer is 190°C, the screw speed is set at 50rpm, and the internal mixer is mixed for 10 Discharge in minutes.

[0065] The above mixed samples were hot pressed into a sheet with a thickness of 0.5mm in a hot press at 200°C, and a standard test sample was prepared with a standard dumbbell-shaped punching knife for performance testing.

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Abstract

The invention discloses a PLA (polylactic acid) / ABS (acrylonitrile-butadiene-styrene copolymers) alloy material and a preparation method thereof. The PLA / ABS alloy material is a blend and the blend comprises PLA, ABS and a third component, wherein PLA accounts for 5-95% of total PLA and ABS by mass; ABS accounts for 95-5% of total PLA and ABS by mass; the third component accounts for 0.5-15% of total PLA and ABS by mass. The method comprises the following steps: mixing dried PLA, ABS and the third component uniformly and then adding the mixture to melt mixing equipment to undergo melt blending and blending the mixture at 180-220 DEG C for 5-10 minutes, thus obtaining a blend; then preparing the PLA / ABS alloy material through a forming process. The PLA / ABS alloy material and the preparation method have the advantages that the raw materials of PLA root in biomass, so that the PLA material has good biocompatibility and biodegradability; the prepared alloy material has high hardness, high modulus and tensile strength and high impact resistance.

Description

technical field [0001] The invention relates to the fields of polymer technology and ecological environment materials, and relates to a polylactic acid / ABS alloy material and a preparation method thereof, in particular to a green-based high-performance polylactic acid / ABS alloy material and a preparation method and application thereof. Background technique [0002] Polylactic acid (PLA) has attracted more and more researchers' attention due to its biodegradability and biocompatibility. And polylactic acid is a kind of green environment-friendly polymer material, its relatively reasonable price, excellent performance (specifically manifested as high strength, high modulus and oil resistance), so it is expected to become a general-purpose plastic and widely used in in people's daily life. As a typical plant-derived polymer material, its production process is non-polluting, and the product can be biodegraded to achieve a complete carbon cycle in nature. Therefore, it is an ide...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L55/02C08L51/00C08L33/08C08L33/26C08L33/12
Inventor 李勇进董文勇何美锋王亨缇
Owner HANGZHOU NORMAL UNIVERSITY
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