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A kind of carton adhesive glue containing calcium carbonate whiskers and preparation method thereof

A calcium carbonate whisker and adhesive technology, applied in the field of carton adhesive, can solve the problems of corrugated cardboard being easy to re-moisture and soften, the bonding strength of cardboard is reduced, and the performance is unstable, so as to achieve low production cost and improve bulkiness. And the effect of excellent dispersion and water resistance

Active Publication Date: 2020-04-17
BENGBU COLLEGE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In my country, almost all corrugated cardboard production uses starch adhesives. Although starch adhesives have the advantages of wide sources, abundant resources, non-toxic, non-polluting, and low cost, they are greatly affected by temperature and composition. Unstable, easy to become thinner during recycling, and the corrugated cardboard produced tends to become damp and soft, resulting in reduced bond strength and poor water resistance of the cardboard

Method used

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  • A kind of carton adhesive glue containing calcium carbonate whiskers and preparation method thereof

Examples

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Effect test

Embodiment 1

[0021] A kind of carton adhesive glue containing calcium carbonate whisker, is characterized in that, is made of the raw material of following weight part:

[0022] Rice straw 5, polyvinyl alcohol solution 10, calcium carbonate whisker 4, sodium silicate aqueous solution 20, silane coupling agent ethanol solution 30, VAE resin emulsion 20, soybean protein powder 40, glutinous rice flour 20, carboxymethyl cellulose 5. Dilute hydrochloric acid solution 3;

[0023] The solid content of the VAE resin emulsion is 30%.

[0024] Further, its preparation method comprises the following steps:

[0025] (1) Chop the rice straw into small pieces of 1cm, put it in the mixer, and spray 4% polyvinyl alcohol solution to it while stirring at 200rpm. When the moisture content is 35%, put it into the steam explosion tank , feed steam until the pressure is 1.2MPa, keep it for 3 minutes, quickly release the valve and discharge the material, dry the resultant in a vacuum drying oven at 70°C until...

Embodiment 2

[0035] A kind of carton adhesive glue containing calcium carbonate whisker, is characterized in that, is made of the raw material of following weight part:

[0036] Rice straw 7, polyvinyl alcohol solution 15, calcium carbonate whiskers 5, sodium silicate aqueous solution 30, silane coupling agent ethanol solution 40, VAE resin emulsion 22, soybean protein powder 50, glutinous rice flour 25, carboxymethyl cellulose 8. Dilute hydrochloric acid solution 5;

[0037] The solid content of the VAE resin emulsion is 35%.

[0038] Further, its preparation method comprises the following steps:

[0039] (1) Chop the rice straw into small pieces of 2cm, put it in the mixer, and spray 5% polyvinyl alcohol solution on it while stirring at 250rpm. When the water content is 40%, put it into the steam explosion tank , feed steam until the pressure is 1.3MPa, keep it for 4 minutes, quickly release the valve and discharge the material, dry the resultant in a vacuum drying oven at 75°C until t...

Embodiment 3

[0049] A kind of carton adhesive glue containing calcium carbonate whisker, is characterized in that, is made of the raw material of following weight part:

[0050]Rice straw 10, polyvinyl alcohol solution 20, calcium carbonate whisker 8, sodium silicate aqueous solution 40, silane coupling agent ethanol solution 60, VAE resin emulsion 25, soybean protein powder 60, glutinous rice flour 30, carboxymethyl cellulose 10. Dilute hydrochloric acid solution 8;

[0051] The solid content of the VAE resin emulsion is 40%.

[0052] Further, its preparation method comprises the following steps:

[0053] (1) Chop the rice straw into small pieces of 2cm, put it in the mixer, and spray 6% polyvinyl alcohol solution on it while stirring at 300rpm. When the water content is 45%, put it into the steam explosion tank , feed steam until the pressure is 1.3MPa, keep it for 5 minutes, quickly release the valve and discharge the material, dry the resultant in a vacuum drying oven at 80°C until t...

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Abstract

The invention discloses a carton adhesive containing calcium carbonate whiskers and a preparation method thereof. The prepared carton adhesive has higher adhesive strength and excellent hydrolytic resistance; the production cost is low and the process is simple; alkali liquor is sprayed on straw stalks and then steam explosion treatment is performed, so that filling power and dispersity of straw stalks are promoted; the toughness is enhanced, so that the adhesive strength of the adhesive is further promoted; rigid calcium carbonate whiskers and soft straw stalks are combined with each other and have a synergistic effect, so that the adhesive strength of the adhesive is obviously enhanced; nano-silica is loaded on the calcium carbonate whisker surface, so that the strength of the calcium carbonate whiskers is enhanced, the adhesive strength is further promoted, the hydrolytic resistance of the adhesive is enhanced and the hydrolytic resistance is excellent.

Description

technical field [0001] The invention belongs to the technical field of carton adhesives, and in particular relates to a carton adhesive containing calcium carbonate whiskers and a preparation method thereof. Background technique [0002] Corrugated cardboard occupies an extremely important position in the entire packaging paper container material. This is because corrugated cardboard boxes are not only changeable in shape, suitable for automatic high-speed production, good in appearance and display, but also effective in protecting products. The price is also low and easy to recycle. Utilization, will not pollute the environment, is an environmentally friendly packaging material. In my country, almost all corrugated cardboard production uses starch adhesives. Although starch adhesives have the advantages of wide sources, abundant resources, non-toxic, non-polluting, and low cost, they are greatly affected by temperature and composition. Unstable, easy to become thinner durin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J189/00C09J131/04C09J129/04C09J101/28C09J103/02C09J197/02C09J11/04C09J11/06
CPCC08K2201/011C08L2205/035C08L2205/16C09J11/04C09J11/06C09J189/00C08L31/04C08L29/04C08L1/286C08L3/02C08L97/02C08K9/12C08K3/36
Inventor 赵斌
Owner BENGBU COLLEGE