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Polylactic acid/ polyamide 11 alloy material

A technology of alloy materials and polylactic acid, which is applied in the direction of conjugated synthetic polymer artificial filaments, fiber chemical characteristics, textiles and papermaking, etc., can solve the problems of unimproved mechanical properties of materials, large phase area size of prepared materials, and interface stickiness. Improve the mechanical properties of impact toughness, high modulus and tensile strength, and high hardness

Active Publication Date: 2013-01-02
南通九思医疗器械有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Non-patent literature (polymer 2011, 52, 1417-1425) melt-blended polylactic acid and nylon 11 to prepare a polymer alloy material derived from biomass. However, due to the lack of compatibility between polylactic acid and nylon 11, the prepared material phase zone Large size and poor interfacial bonding, so the mechanical properties of the material are not improved

Method used

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  • Polylactic acid/ polyamide 11 alloy material
  • Polylactic acid/ polyamide 11 alloy material
  • Polylactic acid/ polyamide 11 alloy material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-12

[0038] After polylactic acid (PLA), nylon 11 (PA11) and elastomer (EGMA-g-SAN) were dried in a vacuum oven at 80°C for 24 hours, the PLA / nylon 11 and elastomer were weighed according to the mass ratio in Table 1. After mixing and stirring at room temperature, add to the internal mixer, the temperature of the internal mixer is 200° C., the screw speed is set at 100 rpm, and the material is discharged after internal mixing for 5 minutes.

[0039] The above mixed samples were hot-pressed into a sheet with a thickness of 1mm in a hot press at 210°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 13

[0045] After polylactic acid (PLA), nylon 11 (PA11) and elastomer (EGMA-g-SAN) were dried in a vacuum oven at 80°C for 24 hours, the quantitative PLA and EGMA-g-SAN were first mixed and then added to the internal mixer , the temperature of the internal mixer is 200°C, the screw speed is set at 100rpm, and the material is discharged after internal mixing for 5 minutes. After pulverizing the sample, mix it with a certain amount of nylon 11, put it into an internal mixer, set the temperature of the internal mixer at 200°C, set the screw speed at 100 rpm, and discharge the material after internal mixing for 5 minutes. The mass ratio of the three raw materials used is PLA / nylon 11=55g / 45g, and EGMA-g-SAN is 6% of the total mass of PLA and nylon 11.

[0046] The above kneaded sample was hot-pressed into a sheet with a thickness of 1mm in a hot press at 210°C, and a standard test sample was prepared with a standard dumbbell-shaped punching knife for performance testing. The results a...

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Abstract

The invention discloses a polylactic acid / polyamide 11 alloy material. The polylactic acid / polyamide 11 alloy material is mainly prepared by melting and blending polylactic acid, polyamide 11, and a third component by using melting and mixing equipment; based on the mass of the polylactic acid and the polyamide 11, the polylactic acid is 5 to 95 mass percent, and the polyamide 11 is 5 to 95 mass percent; and the third component is 0 to 15 percent based on the total mass of the polylactic acid and the polyamide 11, wherein 0 infinitely approaches 0 but is not 0; and the third component is an elastomer containing an epoxide group. The polylactic acid / polyamide 11 alloy material is high in hardness, modulus and tensile strength, the impact resistance is greatly improved and the polylactic acid / polyamide 11 alloy material meets the performance using requirements of a structural material.

Description

technical field [0001] The invention relates to the fields of polymer technology and ecological environment materials, in particular to a polylactic acid / nylon 11 alloy material derived from high-performance whole biomass and a preparation method thereof. Background technique [0002] Resources and the environment are major and important issues facing human beings. Traditional polymer materials are derived from non-renewable petrochemical resources. Before the depletion of non-renewable petroleum resources, renewable polymer materials, especially those derived from biomass, have attracted global attention. In the past 10 years, polylactic acid materials have received widespread interest from the industry. The reasons include: First, the raw materials for polylactic acid production are derived from plants and do not depend on petroleum. Before the depletion of non-renewable petroleum resources, renewable products must Will become a worldwide commodity. The second is that po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/04C08L77/02C08L51/00C08L23/08C08L51/06D01F8/14D01F8/12D01F1/10
Inventor 李勇进
Owner 南通九思医疗器械有限公司
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