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Method for preparing bond for corrugated board by using potato residue as raw material

A potato residue, corrugated cardboard technology, applied in the direction of adhesive types, pectin adhesives, cellulose adhesives, etc., can solve the problems of odor, pollution, soil and groundwater pollution, etc., to reduce pollution and reduce costs. Effect

Active Publication Date: 2010-02-10
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although it is used for fast conjunctivation and low price, the cartons bonded with it are highly alkaline, easy to absorb moisture and delaminate, and are corrosive, which will damage the packaged goods and cause pollution to the environment.
[0004] The main corrugated cardboard adhesives currently used in my country are starch-based adhesives that use starch as raw material. Although starch adhesives have the advantages of wide sources, abundant resources, low prices, non-toxic and pollution-free, etc., due to the rising price of starch , the production cost of starch adhesives is getting higher and higher, and some people have started to study the use of cheaper raw materials or waste materials in industrial production processes to replace starch production adhesives in order to reduce production costs and improve economic benefits of enterprises the goal of
[0005] Potato residue is a by-product produced in the potato starch production process. Its components are mainly water, cell debris and residual starch granules. It is not easy to store and transport. After spoilage, it will produce stench and cause pollution.
Potato residues generated during production are usually used as feed or landfill, which has a low utilization rate and causes soil and groundwater pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Recipe (by mass):

[0030] Potato residue (on a wet basis) 100

[0031] Sodium hypochlorite 1.5

[0032] Urea 5

[0033] Polyvinyl alcohol PVA 1799 0.8

[0034] Tributyl phosphate 2

[0035] Borax 0.6

[0036] Process: adjust the pH of potato residue to 8.0, adjust the pitch of colloidal grinding teeth to 8 μm, perform ultrafine grinding treatment for 15 minutes, put the processed material into a beaker, seal it with kraft paper or newspaper, and place it in an autoclave with high-pressure steam at 121 °C Treat for 20 minutes, cool to room temperature, add defoamer tributyl phosphate and oxidant sodium hypochlorite, stir and react at 30°C for 2 hours, add PVA 1799, borax, urea in sequence, stir well and discharge. The prepared adhesive for corrugated cardboard is light yellow (similar to the color of corrugated cardboard), has good fluidity, and has a bonding strength of 338N / flute·m.

Embodiment 2

[0038] Recipe (by mass):

[0039] Potato residue (on a wet basis) 100

[0040] hydrogen peroxide 2

[0041] Urea 6

[0042] Polyvinyl alcohol PVA 1788 1.2

[0043] Octanol 2

[0044] Borax 0.8

[0045] Process: adjust the pH of potato residue to 10.0, adjust the pitch of colloidal grinding teeth to 2 μm, conduct ultrafine grinding treatment for 30 minutes, put the processed material into a beaker, seal it with kraft paper or newspaper, and place it in an autoclave with high-pressure steam at 121°C Treat for 25 minutes, cool to room temperature, add defoamer octanol and oxidant hydrogen peroxide (concentration 30g / 100g), stir and react at 30°C for 1.5 hours, add PVA 1788, borax, urea in sequence, stir well and discharge. The cohesive properties of the prepared adhesive for corrugated cardboard are compared with those of commonly used starch-based adhesives and sodium silicate in Table 1.

[0046] Table 1 The performance comparison of potato residue binder, starch binder a...

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Abstract

The invention discloses a method for preparing bond for corrugated boards by using potato residue as the raw material, which belongs to the technical field of preparing bonds. In the method, a bond with good performance and low cost for a corrugated board is obtained by using waste potato residue used for producing potato starch industrially as the main raw material, using superfine pulverizationby a colloid wet grinding method and the physical modification means of high-pressure steam treatment, combining oxidation modification treatment and adding a series of assistant agents. The main bonding properties of the prepared bond for the corrugated board are similar to those of a starch-based bond; the prepared bond conforms to the requirement of producing the corrugated board and can be widely applied to the production, the bonding and the like of the corrugated board; in addition, because the waste potato residue is used as the main raw material, the production cost is obviously reduced and the environmental pollution is effectively reduced.

Description

technical field [0001] The invention discloses a method for preparing an adhesive for corrugated cardboard by using potato residue as a raw material, belonging to the technical field of adhesive preparation. Background technique [0002] As an important material, corrugated cardboard has excellent performance, is light, strong, and easy to load and unload, and is widely used in transportation packaging for household appliances, textiles, and food. Adhesives for corrugated cardboard production are used to bond paper cores and face paper and have a certain decisive effect on their performance. [0003] The earliest adhesive used in my country's carton industry is NaSiO 3 (Also known as water glass, sodium hydroxide). Although it is quick to conjugate and low in price, the cartons bonded with it are highly alkaline, easy to absorb moisture and delaminate, and are corrosive, which will damage the packaged goods and pollute the environment. [0004] The main corrugated cardboa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J103/10C09J101/04C09J105/06C09J11/08C09J11/06C09J11/04B31F1/20B31F5/04
Inventor 顾正彪程力洪雁王鹏
Owner JIANGNAN UNIV
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