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A kind of production method of fulvic acid straw plant fiber degradable plastic film

A technology of plant fiber and degradable mulch film, which is applied in the field of comprehensive utilization of straw resources, can solve the problems of high input cost for planters and insufficient dry and wet strength, and achieve strong operability, mature production and papermaking technology, and good water degradation characteristics and the effect of photodegradation properties

Active Publication Date: 2022-07-08
大禾(上海)生态科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Aiming at the current problems of insufficient dry and wet strength of plant fiber degradable mulch and high investment costs for growers, the present invention provides a production method of fulvic acid straw plant fiber degradable mulch

Method used

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  • A kind of production method of fulvic acid straw plant fiber degradable plastic film
  • A kind of production method of fulvic acid straw plant fiber degradable plastic film
  • A kind of production method of fulvic acid straw plant fiber degradable plastic film

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Embodiment approach

[0057] According to the above ideas for solving the problem, the following solutions are adopted, namely, a method for producing fulvic acid straw plant fiber degradable plastic film, specifically:

[0058] A method for producing fulvic acid straw plant fiber degradable plastic film, which uses straw fiber pulp and fulvic acid as main raw materials to produce fulvic acid straw fiber degradable plastic film, specifically:

[0059] a. Use straw as raw material to produce pulp and fulvic acid;

[0060] b. Deep activation treatment of fulvic acid;

[0061] c. adding the pulp and the deeply activated fulvic acid to a cross-linking agent to carry out a cross-linking reaction to obtain a slurry;

[0062] d. Add wet strength agent and film-forming agent, papermaking and post-treatment according to known techniques;

[0063] e. Removal of hemicellulose.

[0064] Obtained fulvic acid straw fiber degradable plastic film and commercial fulvic acid.

[0065] In some embodiments, stalks...

Embodiment 1

[0076] Using straw as raw material to produce pulp and fulvic acid by ammonium method cooking, specifically,

[0077] The first step is to prepare. Take 1000g of cotton stalks, the raw materials are from the 10th Regiment of the First Division of Alar, Xinjiang Construction Corps, remove the peaches and soil, cut them to 20-30mm, wash and dry them for later use.

[0078] The second step is cooking. Put the raw materials into the ZQS-1 type 15L electric heating rotary cooking pot. Ammonium sulfite addition 15%, H 2 SO 4 The addition amount is 0.1%, the pH is 6.5, the addition amount of the penetrant JFC is 0.01%, and the catalyst CuSO 4 The addition amount is 0.01%, cooking, heating to 120 DEG C to release steam, heating to 165 DEG C, and heat preservation for 90 minutes, the slurry yield is 60%, and the Kappa value is 17.

[0079]The third step is refining and dispersing, obtaining fiber, and extracting fulvic acid. It was decomposed in a 300mm KRK high-concentration mil...

Embodiment 2

[0089] Using cotton straw as raw material to produce pulp and fulvic acid by ammonium method cooking, specifically,

[0090] The first step to the fourth step are the same as in Example 1;

[0091] The fifth step is deep activation of fulvic acid. First, add ammonium sulfite to the fulvic acid concentrated black liquor with a solid content of 50%, and the addition amount is 10% of the solid content of fulvic acid, CuSO 4 The addition amount is 0.1% of the dry basis weight of fulvic acid, the temperature is 90 ° C, and the temperature is kept for 60 minutes; secondly, an activator is added, and the ratio is, catechin: gallic acid: tannic acid = 1: 1: 1, the addition amount is 0.5% by weight of fulvic acid dry basis, CuSO 4 The addition amount is 0.01% of the dry basis weight of fulvic acid, the temperature is 60° C., the temperature is maintained for 90 minutes, and the mixture is stirred.

[0092] The sixth step, cross-linking reaction, specifically, firstly, cellulose and ...

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Abstract

The invention relates to a method for producing a fulvic acid straw plant fiber degradable plastic film, which belongs to the field of comprehensive utilization of straw fiber raw material resources. Using straw as raw material to produce fulvic acid straw fiber degradable mulch film and fulvic acid, specifically, using pulp and fulvic acid as main raw materials to add cross-linking agent and film-forming agent to produce degradable mulch film, and obtaining fulvic acid straw fiber can be Degradation of plastic film and commercial fulvic acid. The addition of fulvic acid can increase the content of hydroxyl and carboxyl groups, improve internal binding force, and improve dry and wet strength; straw fibers and fulvic acid have natural degradable characteristics, and after degradation, they can give full play to the advantages of fulvic acid's biological activity and play a role in saving energy. Fertilizer efficiency, soil improvement, drought resistance, yield increase, crop quality improvement, etc., greatly improve the input-output ratio of farmers using fulvic acid straw fiber degradable mulch film, excess commercial fulvic acid has high added value and good economic benefits , which can effectively offset the purchase cost of straw fiber degradable plastic film.

Description

technical field [0001] The invention belongs to the industrial field of comprehensive utilization of straw resources, in particular to a method for producing a fulvic acid straw plant fiber degradable plastic film. Background technique [0002] The information disclosed in this Background section is only for enhancement of understanding of the general background of the invention and should not necessarily be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person of ordinary skill in the art. [0003] Some researchers summarized the current situation and development trend of various degradable mulching films, mentioned the research and application of degradable cellulose film paper prepared by paper film technology, and pointed out that paper mulching films have dry and wet strength, tensile strength, elongation at break The problem of insufficient rate, toughness and light transmittance is not involved in the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21B1/06D21C3/04D21C3/06D21C7/00D21D1/02D21D1/20D21H17/23D21H21/14D21H21/20
CPCD21B1/061D21C3/04D21C3/06D21C7/00D21D1/02D21D1/20D21H17/23D21H21/20D21H21/14Y02W90/10Y02A40/28
Inventor 白博刘玉芳
Owner 大禾(上海)生态科技有限公司
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