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Anti-bacteria heat-proof polylactic acid tableware and manufacture method thereof

A polylactic acid and polylactic acid resin technology, which is used in table utensils, home utensils, applications, etc., can solve problems such as reducing the biodegradability of polylactic acid materials, and achieve improved antibacterial and antioxidant properties, excellent mechanical properties, and heat resistance. Sex-enhancing effects

Active Publication Date: 2017-09-26
CHONGQING JINHAOMEI MELAMINE PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these modification methods tend to reduce the biodegradability of PLA materials.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method applied to the antibacterial and heat-resistant polylactic acid tableware of the present embodiment comprises the following steps:

[0026] The following raw materials are all parts by weight,

[0027] Grind 100 parts of polylactic acid particles into granules, dry them under vacuum at 100°C for 18 hours, then add 2 parts of silicon dioxide, 8 parts of viscose fiber, 0.2 parts of potassium persulfate, 0.3 parts of alkyl ether carboxylate, and inject bismuth In the screw extruder, extrude and granulate to make polylactic acid granules, wherein the twin-screw processing temperature is 220°C; vacuum-dry the prepared polylactic acid granules at 80°C for 20h, and if necessary, polylactic acid Lactic acid granules are prepared into sheets and then calendered or directly injected to obtain tableware.

Embodiment 2

[0029] The preparation method applied to the antibacterial and heat-resistant polylactic acid tableware of the present embodiment comprises the following steps:

[0030] The following raw materials are all parts by weight,

[0031] Crush 100 parts of polylactic acid particles into granules, dry them in vacuum at 100°C for 18 hours, then add 5 parts of silicon dioxide, 8 parts of viscose fiber, 0.2 parts of potassium persulfate, 0.3 parts of alkyl ether carboxylate, and inject bismuth In the screw extruder, extrude and granulate to make polylactic acid granules, wherein the twin-screw processing temperature is 220°C; vacuum-dry the prepared polylactic acid granules at 80°C for 20h, and if necessary, polylactic acid Lactic acid granules are prepared into sheets and then calendered or directly injected to obtain tableware.

Embodiment 3

[0033] The preparation method applied to the antibacterial and heat-resistant polylactic acid tableware of the present embodiment comprises the following steps:

[0034] The following raw materials are all parts by weight,

[0035] Crush 100 parts of polylactic acid particles into granules, dry them under vacuum at 100°C for 18 hours, then add 2 parts of silicon dioxide, 12 parts of viscose fiber, 0.2 parts of potassium persulfate, 0.3 parts of alkyl ether carboxylate, and inject bismuth In the screw extruder, extrude and granulate to make polylactic acid granules, wherein the twin-screw processing temperature is 220°C; vacuum-dry the prepared polylactic acid granules at 80°C for 20h, and if necessary, polylactic acid Lactic acid granules are prepared into sheets and then calendered or directly injected to obtain tableware.

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Abstract

The invention discloses anti-bacteria heat-proof polylactic acid tableware, which is prepared from polylactic resin, oxide, viscose fiber, initiator and alkyl ether carboxylate. The invention also discloses a preparation method for the anti-bacteria heat-proof polylactic acid tableware. The anti-bacteria heat-proof polylactic acid tableware has the advantages of simple preparation technology flow, easiness in control, low composite material cost, good heat resistance and high anti-bacteria performance, is biodegradable and can be used in fields including the tableware, food, medical packaging materials and the like.

Description

technical field [0001] The invention relates to an antibacterial heat-resistant polylactic acid tableware with a simple modification process and a preparation method thereof, belonging to the field of polymer materials and their processing. Background technique [0002] Polylactic acid has excellent transparency and biodegradability, and it is very promising to replace non-degradable common plastics. It can be used in packaging fields such as containers and films, fiber fields such as clothing, carpets, decorations, and automotive decorations, and molding of electronic and electrical casings. Materials are widely used. However, the glass transition temperature of polylactic acid is 50-80°C, and the heat distortion temperature of polylactic acid products obtained by conventional processing methods does not exceed 60°C, which cannot meet the heat resistance requirements of many products at all. The main technology to improve the heat resistance of polylactic acid is to improv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/04C08L1/24C08K13/06C08K7/24C08K9/02C08K3/36C08K3/08C08K5/09C08K5/3437C08K5/00A47G19/00
CPCA47G19/00C08K2003/0806C08K2201/011C08K2201/018C08L67/04C08L2201/06C08L2201/08C08L2205/16C08L1/24C08K3/36C08K5/09C08K9/02C08K3/08C08K13/06C08K7/24C08K5/3437C08K5/0091
Inventor 屈志豪屈朝辉袁小丽
Owner CHONGQING JINHAOMEI MELAMINE PROD CO LTD
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