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Completely biodegradable material

A technology of biodegradable materials and raw materials, applied in the field of polymer materials, can solve the problems of toughness and strength that cannot be well combined, and achieve the effects of easy processing, good toughness, and not easy to break

Inactive Publication Date: 2016-02-24
JILIN YIYANGSHENG BIOLOGICAL ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toughness and strength of existing biodegradable plastics are often not well combined, and the two properties are easy to trade off. Therefore, developing a biodegradable material with excellent comprehensive properties is an important direction of current research work.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A completely biodegradable material, which consists of the following raw materials in parts by weight: 55 parts of poly(butylene adipate / terephthalate), 40 parts of polylactic acid, 5 parts of polycaprolactone, 1 part of lubricant, anti- 1 part of oxygen agent, 2 parts of auxiliary agent, 2 parts of filler.

[0019] In this embodiment, the lubricant is a mixture of sodium stearate, magnesium stearate and alkylene difatty amide, and the mass of the sodium stearate, magnesium stearate and alkylene difatty amide The ratio is: 1:1.2:1.5.

[0020] In this embodiment, the fillers are talcum powder, mica, clay and barium carbonate in a mass ratio of 1:1:1:1.

[0021] A preparation method of a completely biodegradable material, comprising the following steps:

[0022] (1) Dry poly(butylene adipate / terephthalate), polylactic acid and fillers at a temperature of 55°C;

[0023] (2) Weigh each raw material according to the formula, and mix polyadipate / butylene terephthalate, pol...

Embodiment 2

[0027] A completely biodegradable material, which consists of the following raw materials in parts by weight: 60 parts of poly(butylene adipate / terephthalate), 38 parts of polylactic acid, 3 parts of polycaprolactone, 1 part of lubricant, anti- 2 parts of oxygen agent, 3 parts of auxiliary agent, 2 parts of filler.

[0028] In this embodiment, the lubricant is a mixture of sodium stearate, magnesium stearate and alkylene difatty amide, and the mass of the sodium stearate, magnesium stearate and alkylene difatty amide The ratio is: 1:1.2:1.5.

[0029] In this embodiment, the fillers are talcum powder, mica, clay and barium carbonate in a mass ratio of 1:1:1:1.

[0030] A preparation method of a completely biodegradable material, comprising the following steps:

[0031] (1) Dry poly(butylene adipate / terephthalate), polylactic acid and fillers at 60°C;

[0032] (2) Weigh each raw material according to the formula, and mix polyadipate / butylene terephthalate, polylactic acid, lu...

Embodiment 3

[0036] A completely biodegradable material, which consists of the following raw materials in parts by weight: 65 parts of poly(butylene adipate / terephthalate), 35 parts of polylactic acid, 2 parts of polycaprolactone, 2 parts of lubricant, anti- 4 parts of oxygen agent, 5 parts of auxiliary agent, 3 parts of filler.

[0037] In this embodiment, the lubricant is a mixture of sodium stearate, magnesium stearate and alkylene difatty amide, and the mass of the sodium stearate, magnesium stearate and alkylene difatty amide The ratio is: 1:1.2:1.5.

[0038] In this embodiment, the fillers are talcum powder, mica, clay and barium carbonate in a mass ratio of 1:1:1:1.

[0039] A preparation method of a completely biodegradable material, comprising the following steps:

[0040] (1) Dry poly(butylene adipate / terephthalate), polylactic acid and fillers at 65°C;

[0041] (2) Weigh each raw material according to the formula, and mix polyadipate / butylene terephthalate, polylactic acid, l...

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Abstract

The invention discloses a completely biodegradable material, and relates to the technical field of high polymer materials. The completely biodegradable material is prepared from, by weight, 55-65 parts of poly-adipic acid / butylene terephthalate, 35-40 parts of polylactic acid, 2-5 parts of polycaprolactone, 0-2 parts of a lubricating agent, 1-4 parts of an antioxidant, 2-5 parts of an auxiliary and 1-4 parts of packing. According to the completely biodegradable material, a formula of a biodegradable material is optimized, a plastic product made of the material obtained by taking the poly-adipic acid / butylene terephthalate as the main raw materials and cooperating with the appropriate polylactic, polycaprolactone and the other auxiliary materials is excellent in comprehensive mechanical performance, the strength is high, the toughness is good, tensile break is not prone to occurrence, the ductility is high, processing is easy, waste materials can be recycled, no polluting emission occurs in the production process, the final product can be completely decomposed into organic matter under the microorganism action, and a nutrient supplementation effect on soil is achieved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a completely biodegradable material. Background technique [0002] The plastic industry has developed rapidly, and its use has penetrated into various fields of the national economy, and its use is very extensive. China produces about 5 million tons of waste plastics every year, most of which are polypropylene (PP), polyethylene (PE) and polystyrene (PS) materials, which cannot be decomposed naturally. Therefore, if the disposable plastic packaging waste made of PP material, PE material and PS material and its corresponding agricultural film and disposable tableware are randomly discarded, they will be piled up on the land due to their non-degradability, causing serious damage. White pollution, and this potential pollution will also intensify with the increase of people's usage and the accumulation of time. At present, my country's white pollution is serious, which has ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L67/04C08K13/02C08K5/098C08K5/20C08K3/34C08K3/26
CPCC08L67/02C08L2201/06C08L2205/02C08L2205/025C08L2205/03
Inventor 曾雅敏郑春生
Owner JILIN YIYANGSHENG BIOLOGICAL ENVIRONMENTAL PROTECTION TECH CO LTD
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