Fully-degradable agricultural biological intelligent mulching film and preparation method therefor

A fully degradable and agricultural technology, applied in botany equipment and methods, chemical instruments and methods, applications, etc., can solve the problems of high cost, high cost of working hours, increase of soil moisture, etc., achieve high cost, save working hours, increase The effect of soil moisture in farmland

Inactive Publication Date: 2020-05-08
深圳市常治互联网技术开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, agricultural plastic mulches have the following disadvantages: 1. When crop seeds germinate, the plastic film cannot be broken through, and holes need to be artificially opened, resulting in high labor costs; 2. Plastic mulches are not breathable after use, and can no longer absorb natural precipitation, which increases the impact on farmland. Land moisture is ineffective; 3. It needs to be recycled after use, and if some plastic debris is no

Method used

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  • Fully-degradable agricultural biological intelligent mulching film and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weighing 0.5 parts of modified starch, 0.6 parts of polyvinyl alcohol, 0.4 parts of emulsifier, 0.3 parts of carboxymethyl cellulose, 0.2 parts of pH regulator, 0.2 parts of natural latex and 97.8 parts of distilled water . The modified starch is phosphate starch, the emulsifier is xanthan gum, and the pH regulator is trisodium phosphate. Add the weighed modified starch and polyvinyl alcohol into distilled water, heat to 80°C and stir evenly. After the mixed liquid in step a) is cooled to room temperature, add the weighed emulsifier and carboxymethyl cellulose, heat to 70°C, keep warm in a water bath for 60min and keep stirring. Then, add weighed natural latex and pH regulator to the mixed solution prepared in step b), and stir at a constant speed to emulsify the mixed solution under the action of shear force to obtain a uniform, stable and viscous liquid finished product preparation.

Embodiment 2

[0027] Weighing 0.75 parts of modified starch, 0.7 parts of polyvinyl alcohol, 0.5 parts of emulsifier, 0.4 parts of carboxymethyl cellulose, 0.25 parts of pH regulator, 0.25 parts of natural latex and 97.15 parts of distilled water . Others are the same as embodiment one.

Embodiment 3

[0029] Weighing 1 part of modified starch, 0.8 part of polyvinyl alcohol, 0.6 part of emulsifier, 0.5 part of carboxymethyl cellulose, 0.3 part of pH regulator, 0.3 part of natural latex and 96.5 parts of distilled water . Others are the same as embodiment one.

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Abstract

The invention discloses a fully-degradable agricultural biological intelligent mulching film and a preparation method therefor. The fully-degradable agricultural biological intelligent mulching film comprises 0.5-1.5 parts of modified starch, 0.6-1 parts of polyvinyl alcohol, 0.4-0.8 parts of emulsifier, 0.3-0.7 parts of carboxymethyl cellulose, 0.2-0.4 parts of PH regulator, 0.2-0.4 parts of natural latex and 95.2-97.8 parts of distilled water in a weight ratio. The prepared fully-degradable agricultural biological intelligent mulching film can replace agricultural plastic mulching films usedin agricultural production at present, and the intelligent mulching film can be fully degraded within nine months after being sprayed onto farmland surfaces, does not need to be recycled, has no residue and is pollution-free.

Description

【Technical field】 [0001] The invention relates to the technical field of mulch, in particular to the technical field of a fully degradable agricultural biological intelligent mulch and a preparation method thereof. 【Background technique】 [0002] In order to keep heat and moisture in the farmland, shorten the fruit maturity period, and increase the unit yield, my country introduced plastic mulch for agricultural production in the early 1980s. At present, agricultural plastic mulching technology has become an important measure for drought resistance, water saving and crop production increase in my country's alpine, arid, semi-arid, low-lying and saline-alkali regions, especially in my country's vast northwestern and northeastern regions. At present, the covered area of ​​plastic film in my country has reached 250 million mu, and it is increasing at a rate of 10 million mu every year. The total annual use of plastic film has exceeded 450,000 tons, ranking first in the world. ...

Claims

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Application Information

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IPC IPC(8): A01G13/02C09K17/52C09K101/00
CPCA01G13/0262C09K17/52C09K2101/00
Inventor 唐芝健
Owner 深圳市常治互联网技术开发有限公司
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