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Biodegradable dishware and its producing method

A biodegradable tableware technology, applied in the field of biodegradable tableware and its preparation, can solve the problems of accelerated photooxidation of PP tableware, polymer chain breakage, high product cost, etc., and achieve hygienic performance and physical and mechanical properties. Biodegradation The effect of high degree of investment and low investment

Inactive Publication Date: 2008-05-21
丁少忠
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are a variety of non-polluting and environmentally friendly degradable tableware on the market. According to their degradation principles, they are mainly divided into two categories: one is biodegradable, and the base materials of this type of tableware are mostly paper products and plant fibers. There are three types of food products and edible powder products, but the investment in the production equipment of such tableware is large and the cost of the product is high, which hinders the promotion and use of this type of product due to price factors. For example, Quanzhou Far East Degradable Tableware Co., Ltd. invested more than 20 million yuan in equipment , the cost of producing a medium-sized fast food box is as high as 0.30 yuan; the other is photodegradable PP (polypropylene) tableware, which has less investment in equipment and moderate product prices, but there are two major defects: one is that the product contains photosensitizers , can trigger and accelerate the photooxidation of PP tableware, and generate carbonyl groups that can absorb ultraviolet light on the PP polymer chain, thereby triggering polymer chain breakage, and then making the PP material enter a period of embrittlement and decay, and visible light is everywhere, causing It is difficult to preserve such products. Some manufacturers’ products have been degraded and cracked before leaving the factory, losing their use value. Second, after such products are discarded and landfilled, they cannot be degraded because they cannot see light.

Method used

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  • Biodegradable dishware and its producing method

Examples

Experimental program
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Effect test

Embodiment 1

[0025] (1) Weigh 100 parts of biodegradable masterbatch BM1150, 20 parts of resin PP, filler CaCO 3 80 parts, added to a low-speed mixer at normal temperature and stirred for 5 minutes, then added 2 parts of dispersant (liquid paraffin), 2 parts of lubricant (stearic acid), 0.1 part of nucleating agent (sodium benzoate), 5 parts of colorant part, and stirred for 15 minutes to obtain a well-stirred mixture; (2) Send the mixture to the Suhuang HD-200 vertical hopper dryer for drying, which is dried in the form of whirling hot air, and the drying temperature is 120°C. The time is 4 hours, the air volume is 1850 cubic meters per hour, and the air pressure is 1350Pa; (3) Pour the dried mixture into the SJ-80 meshing extrusion with a mixing structure and a compression ratio of 3.5:1. After being plasticized in the machine, it is extruded by the T-die. When extruding, the screw speed of the extruder is 50-80 rpm; (4) The extruded film is immediately transported to the plastic forming...

Embodiment 2

[0027] (1) Weigh 100 parts of biodegradable masterbatch BM1150, 20 parts of resin PP, filler CaCO 3 80 parts, added to a low-speed mixer at normal temperature and stirred for 5 minutes, then added 2 parts of dispersant (liquid paraffin), 2 parts of lubricant (stearic acid), 0.1 part of nucleating agent (sodium benzoate), 5 parts of colorant part, and stirred for 15 minutes to obtain a well-stirred mixture; (2) Send the mixture to the Suhuang HD-200 vertical hopper dryer for drying, which is dried in the form of whirling hot air, and the drying temperature is 120°C. The time is 4 hours, the air volume is 1850 cubic meters per hour, and the wind pressure is 1350Pa; (3) Pour the dried mixture into the SJ-90 meshing extrusion with a mixing structure and a compression ratio of 3.5:1. After being plasticized in the machine, it is extruded by the T die. When extruding, the screw speed of the extruder is 50-80 rpm; (4) The extruded film is calendered by a calender roller and cooled to...

Embodiment 3

[0029] (1) Weigh 100 parts of biodegradable masterbatch PZ7220 and 50 parts of resin PP, add them to a low-speed mixer at room temperature and stir for 5 minutes, then add 2 parts of dispersant (liquid paraffin) and 2 parts of lubricant (stearic acid) in sequence 1 part, 0.1 part of nucleating agent (sodium benzoate), 5 parts of colorant, stirred for 15 minutes to obtain a uniform mixture; The machine is dried by whirling hot air, the drying temperature is 120°C, the drying time is 4 hours, the air volume is 1850 cubic meters per hour, and the wind pressure is 1350Pa; (3) Pour the dried mixture into the screw with a mixing structure, In the SJ-80 meshing extruder with a compression ratio of 3.5:1, it is extruded by a T-die after mastication. When extruding, the screw speed of the extruder is 50-80 rpm; (4) the extruded The diaphragm is immediately transported to the plastic forming machine in the molten state, formed according to the shape of the mold, and demoulded after bein...

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Abstract

A biodegradable dining set is prepared from biodegradable mother material, resin PP, filler, disperser, lubricant and nucleator through proportionally mixing, drying and shaping. Its advantages are high biodegradability, and good sanitary level and mechanical performance.

Description

technical field [0001] The invention relates to a biodegradable tableware and a preparation method thereof. Background technique [0002] At present, there are a variety of non-polluting and environmentally friendly degradable tableware on the market. According to their degradation principles, they are mainly divided into two categories: one is biodegradable, and the base materials of this type of tableware are mostly paper products and plant fibers. There are three types of food products and edible powder products, but the investment in the production equipment of such tableware is large and the cost of the product is high, which hinders the promotion and use of this type of product due to price factors. For example, Quanzhou Far East Degradable Tableware Co., Ltd. invested more than 20 million yuan in equipment , the cost of producing a medium-sized fast food box is as high as 0.30 yuan; the other is photodegradable PP (polypropylene) tableware, which has less investment i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08J5/00C08K5/11
Inventor 丁少忠
Owner 丁少忠
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