Mulching film prepared from corn straws and preparation method thereof

A corn stalk and corn stalk fiber technology, which is applied in textiles and papermaking, fiber raw material processing, plant protection cover, etc., can solve the problems of easy rupture, poor film strength and toughness, affecting the use of large areas of film, and reduce environmental pollution. , high utilization rate, the effect of increasing nitrogen and potassium content

Inactive Publication Date: 2018-04-20
柳州市柳科科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the strength and toughness of the mulch film are poor, and it is easy to break when used, which greatly affects the large-area use of the mulch film.

Method used

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  • Mulching film prepared from corn straws and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] A mulch film prepared from corn stalks, comprising the following components according to weight percentage:

[0048] Corn straw fiber 70%, waste cotton fiber 18%, bio-organic fertilizer 1%, polyvinyl alcohol 6%, corn starch 2%, glycerin 1%, sorbitol fatty acid ester 1%, crosslinking agent 0.2%.

[0049] The crosslinking agent is glyoxal.

[0050] A method for preparing a mulch film prepared from corn stalks, comprising the following steps:

[0051] S1. Corn stalk fiber preparation:

[0052] 1) Straw pretreatment:

[0053]Wash and chop the corn stalks into short stems with a length of 2-5 cm, and then add them to an ethanol aqueous solution for pretreatment for 2 hours at a treatment temperature of 180° C., and then dry them; the ethanol concentration in the ethanol aqueous solution is 60%.

[0054] 2) Cellulose dissolution:

[0055] Melt 1-allyl-3-methylimidazolium chloride salt ionic liquid completely at 90°C, then add the pretreated corn stalks, continue heating a...

Embodiment 2

[0065] A mulch film prepared from corn stalks, comprising the following components according to weight percentage:

[0066] Corn straw fiber 70%, waste cotton fiber 18%, bio-organic fertilizer 1%, polyvinyl alcohol 6.8%, corn starch 2%, glycerin 1%, sorbitol fatty acid ester 1%, crosslinking agent 0.2%, insecticide 0.8%.

[0067] The insecticide is a neonicotinoid insecticide.

[0068] The preparation method is the same as in Example 1.

Embodiment 3

[0070] A mulch film prepared from corn stalks, comprising the following components according to weight percentage:

[0071] Corn straw fiber 70%, waste cotton fiber 18%, bio-organic fertilizer 1%, polyvinyl alcohol 7%, corn starch 1.5%, glycerin 1%, sorbitol fatty acid ester 1%, crosslinking agent 0.5%.

[0072] The preparation method is the same as in Example 1.

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Abstract

The invention provides a mulching film prepared from corn straws and a preparation method thereof and relates to the field of utilization of crop straws. The mulching film provided by the invention isprepared from the following components in percentage by weight: 60 to 80 percent of corn straw fibers, 10 to 30 percent of waste cotton fibers, 1 to 3 percent of biological organic fertilizer, 3 to 10 percent of polyvinyl alcohol, 1 to 5 percent of corn starch, 1 to 3 percent of glycerol, 1 to 3 percent of sorbitol fatty acid ester and 0.05 to 0.5 percent of a crosslinking agent. The preparationmethod comprises the following steps: preparing the corn straw fibers, treating the waste cotton fibers, carrying out non-woven net formation, and bonding and curing. The mulching film provided by theinvention has relatively good strength and air permeability and can be degraded; after the mulching film is degraded, a lot of cellulose can have the effect of improving soil and the utilization value is improved.

Description

technical field [0001] The invention relates to the field of utilization of crop stalks, in particular to a mulch film prepared by using corn stalks and a preparation method thereof. Background technique [0002] Straw is the general term for the stems and leaves (ears) of mature crops. Usually refers to the remaining parts of wheat, rice, corn, potatoes, oilseeds, cotton, sugar cane and other crops after harvesting seeds. It is a multi-purpose renewable biological resource. People's most direct impression of straw treatment is that it is burned in large quantities in the field. It suffocates people, airports are out of service and highways are closed due to straw burning, and the losses are incalculable [0003] my country produces a large amount of corn stalks every year, most of which are discarded and burned at will, causing great environmental pollution, affecting the quality of life of farmers, and causing a great waste of resources. How to solve the environmental p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L1/02C08L29/04C08L3/02C08K13/02C08K5/00C08K5/053C08K5/07C08J5/18A01G13/02D21C5/00
Inventor 李文
Owner 柳州市柳科科技有限公司
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