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A biodegradable agricultural film

A technology of agricultural film and moso bamboo, which is applied in the field of agricultural film, can solve the problems of high price, achieve good air permeability, promote degradation, and reduce costs

Active Publication Date: 2015-07-29
叶敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method uses wet starch, which has good degradation performance, but is more expensive and requires special additives

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The described degradable agricultural film is made of raw materials with the following weights.

[0021] Biodegradable moso bamboo powder 20%

[0022] Polyethylene 25%

[0023] Filler 45%

[0024] Hydrophobic modifier 4%

[0025] Lubricant 2%

[0026] Cross-linking agent 2%

[0027] Antioxidant 1%

[0028] Dispersant 1%

[0029] After blending, extruding, and blow molding the above-mentioned various raw materials through the existing technology, a degradable agricultural film can be made.

[0030] The dispersant is a CH-1 hyperdispersant produced by Shanghai Sanzheng Polymer Material Co., Ltd.

[0031] The polyethylene includes 20% high-density polyethylene and 80% linear low-density polyethylene by weight.

[0032] The filler is formed by mixing 20% ​​by weight of degradable moso bamboo fine powder and 45% of calcium carbonate.

[0033] For the fine powder of moso bamboo, the moso bamboo is pulverized, ground into superfine powder by a grinder, added with a hy...

Embodiment 2

[0036] The degradable agricultural film is made of the following raw materials in parts by weight.

[0037] Biodegradable Moso Bamboo Powder 20%

[0038] Polyethylene 20%

[0039] Filling 50%

[0040] Hydrophobic modifier 4%

[0041] Lubricant 2%

[0042] Cross-linking agent 2%

[0043] Antioxidant 1%

[0044] Dispersant 1%

[0045] After the above-mentioned various raw materials are mixed, extruded and blow-molded in the prior art, a degradable agricultural film can be made.

[0046] The dispersant is a CH-1 hyperdispersant produced by Shanghai Zhizheng Polymer Material Co., Ltd.

[0047] The polyethylene comprises 20% moso bamboo fine powder and 50% calcium carbonate by weight.

[0048] The moso bamboo fine powder is added with a hydrophobic modifier and stirred, and modified at room temperature for 2 hours. The weight ratio of moso bamboo fine powder to hydrophobic modifier is 100:4.

[0049] The hydrophobic modifier is a silane coupling agent, its model is: DL-17...

Embodiment 3

[0051] The degradable agricultural film is made of the following raw materials in parts by weight.

[0052] Biodegradable moso bamboo powder 25%

[0053] Filling 50%

[0054] Hydrophobic modifier 5%

[0055] Lubricant 1%

[0056] Cross-linking agent 2%

[0057] Antioxidant 1%

[0058] Dispersant 1%

[0059] After blending, extruding and blow molding the above-mentioned various raw materials through the prior art, a degradable agricultural film can be made.

[0060] The dispersant is a CH-1 hyperdispersant produced by Shanghai Sanzheng Polymer Material Co., Ltd.

[0061] The polyethylene includes 20% high-density polyethylene and 80% linear low-density polyethylene by weight.

[0062] The filler comprises 25% moso bamboo fine powder and 50% calcium carbonate by weight.

[0063] The moso bamboo fine powder is added with a hydrophobic modifier and stirred, and modified at room temperature for 2 hours. The weight ratio of moso bamboo fine powder to hydrophobic modifier ...

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Abstract

The invention discloses a degradable agricultural film. The agricultural film is made of the following raw materials in parts by weight: 15 parts of degradable moso bamboo fine powder, 30 parts of polyethylene, 45 parts of fine filler with a particle size of 1-2 μm, 3 2 parts of hydrophobic modifier, 2 parts of lubricant, 2 parts of crosslinking agent, 2 parts of antioxidant and 1 part of dispersant. The invention has the characteristics of degradability and no residue. It also has good mechanical properties and thermal stability. Can be widely used in planting vegetables, melons and fruits etc.

Description

technical field [0001] The invention relates to an agricultural film, in particular to a degradable agricultural film. Background technique [0002] Agricultural film is an important raw material for agricultural production after seeds, fertilizers and pesticides. It mainly includes shed film and mulch film. Commonly used films are ordinary polyvinyl chloride film, polyvinyl chloride non-drip film, ordinary polyethylene film, polyethylene non-drip film, polyethylene multifunctional composite film and polyethylene-ethyl acetate (eva) multifunctional composite film, etc. Although this type of material has excellent physical properties, it is not easy to degrade, and the residual old film is difficult to eliminate in farmland and soil, which will cause serious environmental pollution problems. This type of agricultural film is difficult to recycle in the soil, and it is difficult to use after recycling. Treatment by means of deep burial and incineration not only cannot elimi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/08C08L23/06C08L97/02C08K13/02C08K3/26A01G13/02
CPCA01G13/0275C08J5/18C08J2323/08C08J2397/02C08J2423/06C08J2423/08C08J2497/02C08K2201/003C08K2201/013C08L23/0815C08L97/02C08L2201/06C08L2203/16C08L2205/03C08L2207/062C08L23/06C08K13/02C08K2003/265
Inventor 胡雪林
Owner 叶敏
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