Completely biodegradable material and preparation method thereof and cosmetics container

A biodegradable material and biodegradable technology, applied in the field of completely biodegradable materials and their preparation, cosmetic packaging boxes, can solve the problems of low impact strength, low elongation at break, etc., achieve improved crystallization speed, simple operation, excellent The effect of mechanical properties

Active Publication Date: 2014-05-07
HANGZHOU EBEI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there are also obvious disadvantages: First, its melting temperature (about 170-180°C) is close to the decomposition temperature (205°C), and processing and molding can only be c

Method used

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preparation example Construction

[0044] The preparation method of the fully biodegradable material of the present invention may include the following steps:

[0045] a. Dry the fully biodegradable polymer and the nucleating agent separately;

[0046] b. Melt blend the dried fully biodegradable polymer and nucleating agent with the remaining components to obtain mixed components;

[0047] c. The mixed components are molded by injection, molding or extrusion blow molding.

[0048] In step a, the temperature of the fully biodegradable polymer drying treatment may be 60-100° C., and the drying treatment time may be 8-12 hours. The temperature of the drying treatment of the nucleating agent may be 80 to 120°C, and the time of the drying treatment may be 2 to 5 hours. In step b, an internal mixer or extruder can be used to melt and blend the components. The temperature of the extruder or internal mixer can be set at 170-220°C, preferably 180-210°C, and the rotation speed can be 10~200rmp. In step c, the cosmetic packagi...

Embodiment 1

[0051] The raw materials and dosage are: 50 grams of PLA (4032D, LD mixed type, Mn=127,000, NatureWorks), 0.25 grams of TMC-300 nucleating agent (Shanxi Institute of Chemical Industry), 2.5 grams of acetyl tributyl citrate plasticizer, 0.25 grams of antioxidant 1010, 1.25 grams of lubricant aluminum stearate. PLA was dried in a vacuum oven at 80°C for 12 hours; the TMC-300 nucleating agent was dried in a vacuum oven at 80°C for 2 hours. Then, the raw materials are mixed uniformly and then added to the internal mixer for melting and mixing. The temperature of the three parts of the internal mixer is 190°C, 195°C and 190°C, the rotating speed is 35rpm, and the banburying time is 10 minutes. The melted and mixed resin is hot-pressed in a mold and preheated for 5 minutes; the hot pressing temperature of the upper and lower molds is 190°C, the pressure is 10MPa; the hot pressing time is 5 minutes. The properties of the material obtained: the tensile strength is 47MPa, and the heat ...

Embodiment 2

[0053] The raw materials and dosage are: 25g PBS, 25g PLA (4032D, LD mixed type, Mn=127,000, Nature Works), 0.25g TMC-306 nucleating agent (Shanxi Institute of Chemical Industry), 0.025g diisopropyl peroxide Benzene, 0.25 g maleic anhydride, 2.5 g acetyl tributyl citrate plasticizer, 0.25 g antioxidant 1010, 1.25 g lubricant aluminum stearate. PBS and PLA were dried in a vacuum oven at 80°C for 12 hours; the TMC-306 nucleating agent was dried in a vacuum oven at 80°C for 2 hours. Then, the raw materials are mixed uniformly and then added to the internal mixer for melting and mixing. The temperature of the three parts of the internal mixer is 190°C, 195°C and 190°C, the rotating speed is 35rpm, and the banburying time is 10 minutes. The melted and mixed resin is hot-pressed in a mold and preheated for 5 minutes; the hot pressing temperature of the upper and lower molds is 190°C, the pressure is 10Mpa, and the hot pressing time is 5 minutes. The properties of the material obtain...

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Abstract

The invention provides a completely biodegradable material, a preparation method thereof, and a cosmetics container. The completely biodegradable material comprises the following components in parts by weight: 100 parts of completely biodegradable polymer, 0.1 to 10 parts of nucleating agent, 0 to 0.2 part of radical initiator, 0 to 2 parts of maleic anhydride, and 0.5 to 10 parts of other auxiliaries. The completely biodegradable material has the characteristics of being outstanding in mechanical property, resistant to heat and low in cost. The completely biodegradable material can replace PE (Polyethylene), PP (Polypropylene), PVC (Polyvinyl Chloride) and the like to prepare various environment-friendly plastic products, and particularly has a wide market prospect in the high-end cosmetics containers (like eye shadow container, liquid foundation container, pressed powder container and lip gloss container), food packing, household appliances, auto and other fields.

Description

Technical field [0001] The invention relates to the field of plastic materials, in particular to a completely biodegradable material, a preparation method thereof, and a cosmetic packaging box. Background technique [0002] Polypropylene (PP), polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), plexiglass and polycarbonate, which use fossil resources such as petroleum as raw materials, are widely used in food packaging, electrochemical products, Industrial equipment and other fields. It is difficult to recycle these materials after use, which has caused a serious problem of "white pollution". Moreover, resources such as oil are not renewable, and a large number of unreasonable uses have caused serious resource shortages for human beings. The emergence of biodegradable materials, especially the renewability of the raw materials of degradable materials, provides an effective means to solve this problem. Among them, fully biodegradable resins whose raw materials are der...

Claims

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Application Information

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IPC IPC(8): C08L51/08C08K5/00C08K5/25C08K13/02C08K3/38C08K3/34C08F283/02C08F222/06
Inventor 郭宝华
Owner HANGZHOU EBEI IND
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