Method for producing composite liquid mulching films from straw

Abstract

The invention discloses a method for producing composite liquid mulching films from straw. The method includes processing the crop straw to obtain cellulose solution, adding monochloro acetic acid, potassium persulfate and butyl acrylate into the cellulose solution and carrying out etherification and cross-linking reaction on celluloses at the temperature of 70 DEG C under stirring conditions to obtain cellulose cross-linked liquor; adding natural polymer chitosan-gelatin blend solution with synergistic effects and capability of improving the plasticity and the flexibility into the cellulose cross-linked liquor. The monochloro acetic acid is used as an etherifying agent, the potassium persulfate is used as an initiator, and the butyl acrylate is used as a cross-linking agent. The method has the advantages that the chitosan-gelatin blend solution is bipolar poly-electrolyte formed by means of coordination cross-linking reaction and is excellent in film-forming property and film-forming strength; certain quantities of trace fertilizers, herbicides and insecticides are added into components to obtain the composite liquid mulching films made from the straw, the composite liquid mulching films not only can be used for agricultural water-saving production, but also can be used for dune fixation afforestation and saline and alkaline land transformation and improvement and are low in cost, and waste can be turned into wealth.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine

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AI Technical Summary

Benefits of technology

This patented technology involves dissolving or mixing different types of vegetal material (cellulos) together through chemical reactions called lignocellucleation. By adding specific agents like ethoxyethane sulfonate (EES), ammonia formaldehyde resinate(AFR)) or guar glue onto these mixtures during this process, various layers containing carboxymerized polysaccharides may become strong hydrogels without losing its ability to hold liquids due to interactions between them. These compositions provide excellent nutrients such as nitrogen, phosphorus, calcium, magnesium, iron, manganese, etc., while still being effective at preventing diseases caused by fungi and bacterial spores. Additionally, microorganisms found on soil surfaces help reduce pests' infectious activity. Overall, this method allows create highly efficient greenhouse gas emitting products made up mostly of bioactive substances derived from naturally occurring sources.

Problems solved by technology

Technological Problem: Plastisma Mulch Films (PM) were developed during early stages but they had issues like slow decomposition rates or environmental contamination caused by volatile substances that could harm plants grown underground due to their low permeability and lack of nutrients from rain fall irrigated fields. Natural Polysaccharide hydrolases called polyganase enzyme(PG), found naturally throughout nature, provide excellent solutions against these challengings.