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Compostable full-degradable disposable tableware and preparation method thereof

A one-time, fully degradable technology, applied in the field of biodegradable materials, can solve the problems of not fully degradable, permanent pollution, unavoidable, etc., to achieve the effect of reducing energy consumption, reducing production improvement costs, and high safety and environmental performance.

Pending Publication Date: 2021-03-02
漳州新迪新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, most biodegradable plastics were blends of polyethylene and starch or other biomass (that is, starch-based degradable plastics). This biodegradable plastic was only partially degraded, not fully degraded in the true sense, although the starch was eaten by bacteria. , but a large amount of polyethylene remains in the soil as microspheres or fragments, or enters the water bodies of rivers, lakes and seas and cannot be eliminated, causing irreversible permanent pollution

Method used

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  • Compostable full-degradable disposable tableware and preparation method thereof
  • Compostable full-degradable disposable tableware and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]A compostable and fully degradable disposable tableware, including the following preparation raw materials calculated by weight: containing 65 parts of PBS, 35 parts of PBAT, 20 parts of bamboo powder, 20 parts of calcium carbonate, 0.5 parts of stearic acid, and 0.5 parts of chain extender , 4 parts of paraffin wax, 0.3 parts of antioxidant 1010.

[0039]PBS uses Xinjiang Lanshan Tunhe Polyester Co., Ltd. TH-803A, and its melt index is 15.0g / 10min. PBAT selects TH-801T from Xinjiang Lanshan Tunhe Polyester Co., Ltd., and its melt index is 4.5g / 10min. The chain extender is BASF JoncrylADR4468.

[0040]The preparation method is as follows:

[0041]1) Put the bamboo powder and calcium carbonate in a high-speed mixer and mix for 10 minutes at 800 rpm for drying and dehumidification, then add stearic acid and antioxidant 1010 and continue to mix and heat for 5 minutes at 800 rpm in the high-speed mixer to obtain a mixed powder .

[0042]2) Put PBAT, PBS, chain extender, and paraffin into a hi...

Embodiment 2

[0048]A compostable and fully degradable disposable tableware, including the following preparation raw materials calculated by weight: containing 50 parts of PBS, 35 parts of PBAT, 15 parts of PLA, 10 parts of straw powder, 15 parts of talcum powder, 5 parts of titanate, and 0.01 part of dicumyl oxide (DCP), 0.5 part of maleic anhydride (MHA), TPW6041 part, and 0.6 part of antioxidant MB.

[0049]PBS uses Xinjiang Lanshan Tunhe Polyester Co., Ltd. TH-803A, and its melt index is 15.0g / 10min. PBAT selects TH-801T from Xinjiang Lanshan Tunhe Polyester Co., Ltd., and its melt index is 4.5g / 10min. NatureWorks2003D is selected for PLA, and the melt index MI value (210°C, 2160g) range is 6.0g / 10min.

[0050]The preparation method is as follows:

[0051]1) Put the straw powder and talc powder in a high-speed mixer at 800 rpm and mix for 10 minutes for drying and dehumidification, then add titanate, TPW604, and antioxidant MB to continue mixing and heating at 800 rpm for 5 minutes to obtain mixed pow...

Embodiment 3

[0065]A compostable and fully degradable disposable tableware, including the following preparation raw materials calculated by weight: containing 100 parts of PBS, 20 parts of bamboo powder, 15 parts of calcium carbonate, 2 parts of silane coupling agent KH550, 3 parts of chain extender, poly 2 parts of ethylene wax and 0.4 parts of antioxidant 1010.

[0066]PBS uses Xinjiang Lanshan Tunhe Polyester Co., Ltd. TH-803A, and its melt index is 15.0g / 10min. The chain extender is Quansheng Chemical X-U992.

[0067]The preparation method is as follows:

[0068]1) Put the bamboo powder and calcium carbonate in a high-speed mixer at 800 rpm and mix for 10 minutes to dry and dehumidify, then add the silane coupling agent KH550 and antioxidant 1010 and continue to mix and heat at the high-speed mixer at 800 rpm for 5 minutes to obtain a mixture Powder.

[0069]2) Put PBS, chain extender, and polyethylene wax into a high-speed mixer at a rotation speed of 600 rpm and a temperature of 70° C. and mix for 8 m...

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Abstract

The invention discloses compostable full-degradable disposable tableware and a preparation method thereof, which relate to the field of biodegradable materials. The compostable full-degradable disposable tableware is prepared from the following raw materials in parts by mass: 100 parts of aliphatic polyester resin, 0-40 parts of filler, 0.5-5 parts of compatilizer, 0.5-5 parts of chain extender, 0.01-1 part of initiator, 0.5-3 parts of grafting monomer, 1-4 parts of lubricant and 0.3-0.6 part of antioxidant. The preparation method comprises the following steps of preparing a required filler and a compatilizer, putting the filler and the compatilizer into a high-speed mixer for mixing at the temperature of 50-90 DEG C for 10-30 minutes, and discharging, adding the mixture into a continuousinternal mixer, carrying out internal mixing at 90-140 DEG C for 2-3 minutes, dropping the mixture into a conical double-forced feeding machine, and feeding the mixture into a double-screw extruder for granulation, so as to obtain required formula granules, pressing the mixture into sheets by a sheet machine at 120-180 DEG C, and carrying out plastic molding as required to obtain a finished product, or directly carrying out injection molding on the formula granules through an injection molding machine.

Description

Technical field[0001]The invention relates to the field of biodegradable materials, in particular to a compostable fully degradable disposable tableware and a preparation method thereof.Background technique[0002]General-purpose plastics are widely used in various fields due to their excellent comprehensive properties. General-purpose plastics are listed as the four pillar materials alongside steel, wood, and cement, and their annual consumption continues to rise. General-purpose plastics such as polyethylene, polypropylene, polyvinyl chloride and polystyrene have very low recovery rates. They can exist stably in nature for a long time, so they are difficult to degrade naturally after being discarded. If burned, harmful gas will be produced. Will cause serious pollution to the environment, which prompts people to research and develop biodegradable materials to replace general-purpose plastics. The world consumes a large amount of disposable tableware every year, and the development o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08L97/02C08K3/26C08K13/02C08K3/34C08F283/02C08F222/06
CPCC08L67/02C08F283/02C08L2201/06C08L2201/08C08L2205/025C08L2205/035C08L2205/03C08K2003/265C08F222/06C08L97/02C08K3/26C08K13/02C08L67/04C08K3/34
Inventor 董炎明马兵飞
Owner 漳州新迪新材料科技有限公司
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