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Powdered starch resin aquatic feed adhesive and production method thereof

A technology of starch resin and aquatic feed, applied in the direction of starch-derived adhesives, adhesive types, etc., can solve the problems of high price, non-conformity, water environmental pollution, etc., to reduce production costs, ensure water resistance time, and ensure The effect of bond strength

Inactive Publication Date: 2012-06-06
HUZHOU VOCATIONAL TECH COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But its disadvantage is that it contains free formaldehyde, which has certain toxicity, and has certain hazards to the health of aquatic organisms. At the same time, it will also pollute the water environment. Therefore, it does not meet the requirements of green environmental protection feed additives.
However, the non-toxic and pollution-free Sodium Thalassic Acid is used as the aquatic feed binder, the price is too expensive, and it cannot be widely used.

Method used

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  • Powdered starch resin aquatic feed adhesive and production method thereof
  • Powdered starch resin aquatic feed adhesive and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Embodiment 1, the production method of powder starch resin aquatic feed binder, its process step is: by weight ratio, get 6 parts of starch, add 18 parts of water, stir and become starch emulsion; Get 1 part of sodium periodate in addition, add Concentrated sulfuric acid to adjust the pH value to 1-1.5; then add the prepared sodium periodate solution into the above-mentioned starch emulsion, heat for 1.5 hours, and control the temperature at 35-40°C; after the reaction, wash with distilled water 4 times, and filter to obtain bis Aldehydehyde starch has a dialdehyde content of 12.3% after determination; add 15 parts of water to the dialdehyde starch obtained by the above filtration, stir evenly, add sodium hydroxide to adjust the pH value to 8.5-9, add 0.06 parts of urotropine That is, hexamethylenetetramine is used as a catalyst, heated to 95-98°C, firstly add 0.7 parts of urea, and then add 0.3 parts of urea after reacting for 30 minutes. hour, and then adjust the pH v...

Embodiment 2

[0022] Embodiment 2, the production method of powder starch resin aquatic feed adhesive, its process step is: by weight ratio, get 6 parts of starch, add 18 parts of water, stir to form starch emulsion; Get 2 parts of sodium periodate in addition, add Adjust the pH value to 1-1.5 with concentrated sulfuric acid; then add the prepared sodium periodate solution into the above-mentioned starch emulsion, heat for 2 hours, and control the temperature at 35-40°C; wash with distilled water for 4 times after the reaction, and filter to obtain bis Aldehyde starch, its dialdehyde content is 23.8% after determination; add 15 parts of water to the dialdehyde starch obtained by the above filtration, stir evenly, add sodium hydroxide to adjust the pH value to 8.5-9, add 0.06 part of urotropine As a catalyst, heat to 95-98°C, add 0.7 parts of urea first, then add 0.3 parts of urea after reacting for 30 minutes, adjust the pH value to 4-5 with formic acid after reacting for 1 hour, condense fo...

Embodiment 3

[0024] Embodiment 3, the production method of powder starch resin aquatic feed adhesive, its process step is: by weight ratio, get 6 parts of starch, add 18 parts of water, stir and become starch emulsion; Get 2.5 parts of sodium periodate in addition, add Adjust the pH value to 1-1.5 with concentrated sulfuric acid; then add the prepared sodium periodate solution into the above-mentioned starch emulsion, heat for 2 hours, and control the temperature at 35-40°C; wash with distilled water for 4 times after the reaction, and filter to obtain bis Aldehyde starch; its dialdehyde content was determined to be 29.8%; add 15 parts of water to the dialdehyde starch obtained by the above filtration, stir evenly, add sodium hydroxide to adjust the pH value to 8.5-9, add 0.06 parts of urotropine As a catalyst, heat to 95-98°C, add 0.7 parts of urea first, then add 0.3 parts of urea after reacting for 30 minutes, adjust the pH value to 4-5 with formic acid after reacting for 1 hour, condens...

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Abstract

The invention relates to a powdered starch resin aquatic feed adhesive and a production method thereof. The production method comprises the following steps of: oxygenating, modifying and converting starch into dialdehyde starch containing a certain dialdehyde content by adopting quantificational sodium periodate; and then, carrying out an addition and condensation reaction on the dialdehyde starch and the urea under the action of a catalyst to generate a product of starch methylated methylol urea resin with the adhesion strength of 0.6-1.0 MPa and the free formaldehyde content not more than 0.001 percent. In the invention, the non-toxic and pollution-free starch resin adhesive without free formaldehyde is prepared from the dialdehyde starch instead of a traditional reaction between the formaldehyde and the urea to reach the requirement of an environment-friendly feed adhesive, and the suitable content of the dialdehyde in the dialdehyde starch is strictly controlled in the production so that not only the production cost is greatly decreased, but also the suitable adhesive strength and the water-resistant time of the adhesive are guaranteed. By applying aquatic particle feed made by the adhesive, the water-resistant time reaches 2 h at 25 DEG C to satisfy the requirement for feeding fishes and shrimps.

Description

technical field [0001] The invention relates to a feed binder, especially a binder for aquatic feed and a production method thereof. Background technique [0002] At present, urea-formaldehyde resin adhesives are mostly used in the production of pelleted feed for fish and shrimp and other aquatic products, which can keep the processed pellet feed for a long time after being put into the water body without disintegration and separation, which is beneficial to fish and shrimp and other aquatic products. The food intake of similar animals, and its production cost is relatively low. But its disadvantage is that it contains free formaldehyde, has certain toxicity, has certain hazards to the health of aquatic organisms, and also pollutes the water environment. Therefore, it does not meet the requirements of green environmental protection feed additives. And adopt the non-toxic and pollution-free sodium trellate as the aquatic feed binder, the price is too expensive, and it cannot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J103/10
Inventor 金惠平黄秀娟蒋晓琴卢嫄
Owner HUZHOU VOCATIONAL TECH COLLEGE
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