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Starch binder

A technology of adhesives and starches, applied in the direction of starch adhesives, adhesive types, hydrocarbon copolymer adhesives, etc., can solve the problem of short storage time, generally about 24 hours, rapid drop of glue kinematic viscosity, Adhesives can not be stable and other problems, to achieve the effect of easy equipment matching, strong adhesion, and stable product quality

Inactive Publication Date: 2013-05-15
TONGLING SONGMA FOOD PACKAGE MACHINERY MFG
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the existing adhesive is not stable, the kinematic viscosity of the glue drops rapidly, and the storage time is short, and it usually begins to deteriorate after about 24 hours. The root-top-shaped glue nails are formed in the center, and the backing paper and the flute peaks are effectively bonded together by glue nails
High-strength corrugated cardboard has good paper quality and high tightness. The capillary pores on the surface are blocked by sizing. Generally, the glue has poor permeability and is prone to quality problems such as false sticking, foaming, and degumming.

Method used

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Embodiment 1

[0019] A kind of starch adhesive is characterized in that it is made up of A, B, C three kinds of materials:

[0020] The material A is composed of the following raw materials in parts by weight: lignosulfonate 2, styrene 6, nano diatomite 2, epoxy soybean oil 2, acrylate 2, acrylic acid 4-6, sodium persulfate 2. Sodium allyloxy hydroxypropyl sulfonate 2;

[0021] The B material is composed of the following raw materials in parts by weight: starch 20, sodium hydroxide 2, borax 0.8, modified tree ash 2, water 30;

[0022] The preparation method of described modified tree ash is:

[0023] (1) Tree ash was soaked in 15% hydrogen peroxide for 4 hours, washed with deionized water, then soaked in 12% sodium hydroxide solution for 4 hours, washed with deionized water until neutral, and dried;

[0024] (2) Add sodium lauryl sulfate equivalent to 2% of its weight, 2% nano-carbon, 3% polyisobutylene, and 5% alum powder to the tree ash, stir at a high speed of 1500 rpm, dry and pulveri...

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Abstract

The invention discloses a starch binder consisting of the following raw materials: lignosulfonate, styrene, nano diatomite, epoxidized soybean oil, acrylic ester, acrylic acid, sodium persulfate, sodium allyloxy hydroxypropyl sulphonate, starch, sodium hydroxide, borax, modified wood ash, and water; as well as water-soluble nanoscale silica sol, ammonium polyacrylate, polyethylene glycol, zinc powder, waterborne polyurethane, sodium laurate, sodium bicarbonate and water. The starch binder is stable in quality, strong in binding power, good in tensile force, fast to dry without foaming, and capable of comprehensively improving all properties of a corrugated carton; as the modified wood ash is added, the damage of water molecules to the binder is effectively decreased, and the water resisting property of the binder is greatly increased; and as the hydrophilic performance of the binder is decreased, the binder has a good characteristic of being fast to dry, thereby being beneficial to use on a high-speed production line of the corrugated carton.

Description

technical field [0001] The invention mainly relates to a composite adhesive, in particular to a starch adhesive. Background technique [0002] At present, the adhesive of corrugated cardboard in the production of tile line mainly uses starch glue adhesive. We know that the peel strength standard of the existing starch adhesive is 5.88n / m2, and its production process is one-step glue making and two-step glue making , Glue is divided into two methods of cold glue and hot glue. Practice has proved that the performance of the adhesive made by the hot glue process is better than that of the cold glue process. However, the existing adhesive is not stable, the kinematic viscosity of the glue drops rapidly, and the storage time is short, and it usually begins to deteriorate after about 24 hours. The root-top-shaped glue nails are formed in the center, and the backing paper and the flute peaks are effectively bonded together by glue nails. High-strength corrugated cardboard has...

Claims

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Application Information

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IPC IPC(8): C09J103/02C09J133/02C09J125/14C09J11/04C08F220/06C08F212/08
Inventor 胡文进
Owner TONGLING SONGMA FOOD PACKAGE MACHINERY MFG
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