Unlock instant, AI-driven research and patent intelligence for your innovation.

Seaweed polymer extracting solution and preparation method thereof and seaweed biological water-retaining liquid mulching film

A polymer and extract technology, applied in the agricultural field, can solve the problems of environmental protection, unsatisfactory water retention, poor mechanical properties, etc., and achieve the effect of improving the water retention rate

Active Publication Date: 2021-05-07
北京雷力平衡农业发展有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the water retention of existing patents such as 201110036149.1 is not ideal enough, the mechanical properties are poor, and there are still a series of problems such as not being environmentally friendly.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Seaweed polymer extracting solution and preparation method thereof and seaweed biological water-retaining liquid mulching film
  • Seaweed polymer extracting solution and preparation method thereof and seaweed biological water-retaining liquid mulching film
  • Seaweed polymer extracting solution and preparation method thereof and seaweed biological water-retaining liquid mulching film

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0046] The present invention provides a method for preparing the above-mentioned seaweed polymer extract, comprising:

[0047] A) the seaweed is pulverized and cleaned to obtain pretreated seaweed;

[0048] B) mixing the pretreated seaweed with water, sodium carbonate and sodium bicarbonate, digesting and extracting to obtain the initial extraction mixture;

[0049] C) The initial extraction mixture is mixed with potassium tripolyphosphate and sodium pyrophosphate for extraction, sodium citrate is added to adjust to neutrality, stirred, and centrifuged to obtain a seaweed polymer extract.

[0050] The preparation method of the seaweed polymer extract provided by the invention firstly crushes and washes the seaweed to obtain the pretreated seaweed.

[0051] The crushing of seaweed in the present invention is preferably crushed to 20 mesh.

[0052] The seaweed raw material is pulverized to 20 meshes, and the seaweed is washed with clean water before use.

[0053]The pretreate...

Embodiment 1

[0092]

[0093]

[0094] Content distribution of macromolecular substances in seaweed polysaccharide enzymatic hydrolysis concentrate

[0095]

[0096] Raw seaweed extract preparation:

[0097] 1) Grinding 100 kilograms of seaweed raw materials to 20 meshes; and washing the seaweed with clean water, and set aside;

[0098] 2) Transfer the seaweed obtained in step 1) into an extraction tank, add a certain amount of water, add sodium carbonate and sodium bicarbonate at the same time, control the temperature within the range of 60°C, and digest and extract for 2.5 hours.

[0099] 3) adding potassium tripolyphosphate and sodium pyrophosphate to the mixed solution obtained in step 2) successively, and extracting with heat preservation for 1 hour;

[0100] 4) adding citric acid to the liquid obtained in step 3) to adjust to neutrality.

[0101] 5) Insulate and stir the liquid obtained in step 4) for 1 hour, then stop.

[0102] 6) transfer the liquid obtained in step 5) i...

Embodiment 2

[0103] Embodiment 2 Preparation of seaweed biological water-retaining liquid film of the present invention

[0104]

[0105]

[0106]

[0107] The preparation method of seaweed liquid film of the present invention:

[0108]780 kg of seaweed extract prepared according to the above method, 105 kg of polyvinyl alcohol, 15 kg of boric acid, 5 kg of potassium persulfate, 2.5 kg of glutaraldehyde, 5 kg of sodium carboxymethyl starch, 37.5 kg of sodium carboxymethyl cellulose , 5 kg of glycerol, at a temperature of 60° C., processed and mixed for 1 hour under high-speed stirring conditions, to obtain a uniform and stable colloidal liquid.

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
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a seaweed biological water-retaining liquid mulching film comprising the following raw materials in parts by weight: 55 to 90 parts of a seaweed polymer extracting solution or a seaweed polymer extracting solution prepared by a preparation method, 1.5 to 25 parts of polyvinyl alcohol, 0.2 to 5 parts of boric acid, 0.4 to 3 parts of potassium persulfate, 0.15 to 2 parts of glutaraldehyde, 0.5 to 10 parts of sodium carboxymethyl starch, 0.4 to 5.0 parts of sodium carboxymethyl cellulose, and 0.2 to 3.0 parts of glycerol. The content of effective components in the seaweed extracting solution obtained through degradation under the specific neutral condition is higher, the extracting solution and other functional polymer materials are subjected to graft copolymerization and full crosslinking, all the components are organically combined, the seaweed biological water retention liquid mulching film is formed, water retention and heat preservation are facilitated, the temperature of heat preservation soil in winter is increased by 3 DEG C or above, the water retention rate is increased by 20% or above, the weed control rate is 50%, and the seaweed biological water-retaining liquid mulching film can be completely degraded by microorganisms and is environmentally friendly and free of residues.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a seaweed polymer extract, a preparation method thereof and a seaweed biological water-retaining liquid film. Background technique [0002] Liquid mulch is a kind of film-forming material that is prepared into a liquid. After spraying, a layer of colloidal film is formed on the surface of the soil to connect the soil particles and play the role of a mulch. The use of liquid mulch can make the soil surface form a multi-molecular network film. The use of this film can close the pores on the soil surface and inhibit the volatilization of soil water, but it does not affect the infiltration of water. At the same time, the dispersed soil particles can be glued together to form Soil aggregate structure. Liquid mulch has advantages over degradable mulch such as conventional degradable mulch in terms of processing and preparation, performance, and degree of degradation, and is easy...

Claims

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
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08B37/00C08L5/00C08L29/04C08L3/08C08L1/28C08K13/02C08K3/38C08K5/07C08K5/053C08J5/18A01G13/02
CPCC08B37/0003C08J5/18A01G13/0275C08J2305/00C08J2429/04C08J2403/08C08J2401/28C08K13/02C08K3/38C08K5/07C08K5/053
Inventor 汤洁李凯凯严国富
Owner 北京雷力平衡农业发展有限公司