Mixed adhesive, its preparation method and its adhesive process for gluing corrugated base paper
A technology of corrugated base paper and gluing technology, applied in the direction of adhesives, amide/imide polymer adhesives, adhesive types, etc., can solve the problems of poor bonding fastness of ordinary starch adhesives and changes in starch properties, etc. Achieve the effect of improving the bonding strength, improving the strength and water resistance, and strong water resistance
Active Publication Date: 2016-05-25
浙江上峰包装新材料有限公司
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AI Technical Summary
Problems solved by technology
[0002] The ordinary starch adhesive used in corrugated paper processing has poor bonding fastness. In order to improve the bonding fastness, the starch adhesive must be modified
Since starch is a polysaccharide structure, its characteristics make many chemical additives unable to effectively change the properties of starch
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] The component embodiment of adhesive of the present invention is given as follows:
[0020] 1. Starch 40%, water-soluble polymer 5%, water 50%; trimethylolpropane triacrylate 4.5%, benzophenone 0.5%, the performance indicators of the five-layer box are as follows:
[0021] Compression resistance of empty box: ≥23KN;
[0022] Edge compressive strength: ≥25KN / m;
[0023] Bursting strength: ≥4800Kpa;
[0024] Puncture strength: ≥34J.
[0025] 2. Starch 50%, water-soluble polymer 5%, water 40%, trimethylolpropane triacrylate 3%, benzophenone 2%, the performance indicators of the five-layer box are as follows:
[0026] Compression resistance of empty box: ≥25KN;
[0027] Edge compressive strength: ≥26KN / m;
[0028] Bursting strength: ≥5000Kpa;
[0029] Puncture strength: ≥35J.
[0030] 3. Starch 60%; water-soluble polymer 5%; water 30%; trimethylolpropane triacrylate 3.5%, benzophenone 1.5%, the performance indicators of the five-layer box are as follows:
[0031] Co...
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Abstract
The invention discloses a mixed adhesive, which comprises the following components in percentage by mass: 40 to 60 percent of starch, 2 to 5 percent of water-soluble polymer HAWP-18, 30 to 50 percent of water, 2 to 5 percent of trimethylolpropane triacrylate and 0.5 to 2 percent of diphenyl ketone. When the mixed adhesive is used for processing corrugated paper, the mixed adhesive generates a self crosslinking effect, a meshy adhesive layer structure is formed between paper fibers of the semi-chemical corrugated paper, the mixed adhesive is hard to dissolve after being dried and forming a film, the adhesive strength is greatly improved, and the mixed adhesive cannot mildew and has high water resistance. The invention also provides a preparation method for the mixed adhesive and a gluing process for gluing the semi-chemical corrugated paper by using the mixed adhesive.
Description
technical field [0001] The invention relates to a mixed adhesive, a preparation method of the mixed adhesive and a gluing process of using the mixed adhesive to glue corrugated base paper. Background technique [0002] Ordinary starch adhesives used in corrugated paper processing have poor bonding fastness. In order to improve the bonding fastness, starch adhesives must be modified. Since starch is a polysaccharide structure, its characteristics make many chemical additives unable to effectively change the properties of starch. After the mixed adhesive is dried and formed into a film, self-crosslinking occurs, forming a network glue layer structure with paper fibers, which is difficult to be re-dissolved in water, and at the same time greatly improves the bonding strength, and will not mildew and has strong water resistance. , thus effectively improving the strength and water resistance of corrugated cardboard. Contents of the invention [0003] The technical problem to ...
Claims
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IPC IPC(8): C09J103/02C09J133/26C09J133/02C09J139/00C09J11/06D21H23/24
Inventor 俞建虎
Owner 浙江上峰包装新材料有限公司