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Non-woven degradable fiber mulching film and preparation method thereof

A technology for degrading fibers and non-woven fabrics, applied in non-woven fabrics, fiber processing, plant fibers, etc., can solve the problems of high cost, good moisture retention effect of mulch film, and difficult processing of biodegradable mulch film. growth-friendly effect

Inactive Publication Date: 2020-04-14
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of difficult processing and high cost of the current biodegradable mulch, the present invention proposes a non-woven degradable fiber mulch and a preparation method, so that the film formation of the biodegradable mulch can be easily realized, and at the same time, the obtained mulch has a good moisture retention effect and has a good application prospect

Method used

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  • Non-woven degradable fiber mulching film and preparation method thereof
  • Non-woven degradable fiber mulching film and preparation method thereof
  • Non-woven degradable fiber mulching film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] (1) Bundle the flax straw and cut it into short sections with a length of 1.5cm, then dry it naturally until the moisture content is 2%, then send the short sections of flax straw into a roller press for rolling to decompose the flax straw Bundles get loose fibers;

[0043] (2) Add 5kg of starch, 1kg of polyvinyl alcohol, and 100kg of water into a container with a stirring device, disperse and stir evenly to form a slurry, then add 125g of phosphoric acid ester, and carry out esterification treatment at a temperature of 70°C for 38min , to get stickies;

[0044] (3) Immerse the loose fiber in excess sticky matter, let the sticky matter infiltrate the fiber, then remove the fiber after soaking thoroughly, then filter out the excess sticky matter, and then place the fiber in hot air to suspend and dry , after the fiber is dried, store it for later use, and obtain a composite fiber of fiber-loaded starch and polyvinyl alcohol;

[0045] (4) Lay the composite fiber web, an...

Embodiment 2

[0048] (1) Bundle the flax straw and cut it into short sections with a length of 1.2cm, then dry them naturally until the water content is 1.8%, then send the short sections of flax straw into a roller press for rolling to decompose the flax straw Bundles get loose fibers;

[0049] (2) Add 5kg of starch, 0.9kg of polyvinyl alcohol, and 100kg of water into a container with a stirring device, disperse and stir evenly to form a slurry, then add 100g of acetic acid, and carry out esterification treatment at a temperature of 65°C for 40 minutes , to get stickies;

[0050] (3) Immerse the loose fiber in excess sticky matter, let the sticky matter infiltrate the fiber, then remove the fiber after soaking thoroughly, then filter out the excess sticky matter, and then place the fiber in hot air to suspend and dry , after the fiber is dried, store it for later use, and obtain a composite fiber of fiber-loaded starch and polyvinyl alcohol;

[0051] (4) Lay the composite fiber into the ...

Embodiment 3

[0054] (1) Bundle the flax straw and cut it into short sections with a length of 1.8cm, then dry it naturally until the water content is 2.5%, then send the short sections of flax straw into a roller press for rolling to decompose the flax straw Bundles get loose fibers;

[0055] (2) Add 6kg of starch, 1.2kg of polyvinyl alcohol, and 100kg of water into a container with a stirring device, disperse and stir evenly to form a slurry, then add 280g of butyric acid, and carry out esterification at a temperature of 75°C for 35min processing to obtain stickies;

[0056] (3) Immerse the loose fiber in excess sticky matter, let the sticky matter infiltrate the fiber, then remove the fiber after soaking thoroughly, then filter out the excess sticky matter, and then place the fiber in hot air to suspend and dry , after the fiber is dried, store it for later use, and obtain a composite fiber of fiber-loaded starch and polyvinyl alcohol;

[0057] (4) Lay the composite fiber into the net,...

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Abstract

The invention provides a non-woven degradable fiber mulching film and a preparation method thereof. The non-woven degradable fiber mulching film is prepared by cutting flax straws, rolling the cut flax straws to form loose fibers, then soaking the loose fibers into an adhesive prepared from starch, polyvinyl alcohol, water and an esterification auxiliary agent, taking out the fibers, draining thefibers to obtain composite fibers loaded with the starch and the polyvinyl alcohol, then paving a web on the composite fibers, needling to reinforce the composite fibers to form a fiber film, sprayinga waterproof coating on the surface of the fiber film, and performing flattening and shaping on the fiber film by using a hot roller. The preparation process provided by the invention is simple, widein flax straw source and low cost, simultaneously, the mulching film obtained has better soil moisture conservation effect, and the fiber film can be prevented from being untimely damaged after beingpaved, thereby facilitating the growth of crops, improving the yield of the crops, being capable of being directly ploughed into soil for degradation after being used, and not polluting the soil.

Description

technical field [0001] The invention relates to the technical field of agricultural mulch, in particular to a non-woven degradable fiber mulch and a preparation method. Background technique [0002] Agricultural mulch film can not only improve ground temperature, water retention, soil conservation, and fertilizer conservation, but also ensure that the seedlings are neat, complete, and strong when raising seedlings. Yield. The popularization and application of agricultural mulch film, especially for areas with arid and harsh climate conditions, has played a key role in keeping crops warm and moisture, resulting in a significant increase in crop yields. Mulch film has gradually become an indispensable production material in agriculture. For the development of modern agriculture is of great significance. [0003] With the continuous expansion of plastic film coverage, the use of plastic film is increasing year by year, because ordinary plastic film is difficult to recycle, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/04D06N3/14D06N3/00D04H1/4382D04H1/46D06M15/11D06M15/333D06M13/292D06M13/188D06M101/06
CPCD04H1/4382D04H1/46D06M13/188D06M13/292D06M15/11D06M15/333D06M2101/06D06N3/0011D06N3/0063D06N3/0077D06N3/042D06N3/144D06N2201/045D06N2209/1607D06N2211/02
Inventor 曾军堂陈庆张俊何方刘超
Owner CHENDU NEW KELI CHEM SCI CO LTD
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