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Waterproof paper straw adhesive and preparation method thereof

A technology for adhesives and straws, which is applied in the direction of adhesives, monocarboxylate copolymer adhesives, adhesive types, etc., and can solve problems such as scattering, tube warping, and unfavorable production efficiency of paper straws

Inactive Publication Date: 2021-06-22
DONGGUAN STAR COSM POLYMER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the mainstream adhesives on the market can only achieve tube resistance to water less than 61°C. If the temperature exceeds this temperature, the tube will warp or even fall apart, causing consumers to experience a very bad experience when using paper straws to touch hot drinks.
In addition, due to the large number of existing equipment for producing paper straws, the gluing process includes: single-sided roller coating, double-sided roller coating, and glue spraying. As a result, the glue needs to constantly adjust its own performance parameters to match different equipment and substrates, which is not conducive to improving the production efficiency of paper straws

Method used

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  • Waterproof paper straw adhesive and preparation method thereof
  • Waterproof paper straw adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A water-resistant paper straw adhesive, comprising the following components by mass percentage:

[0035] Vinyl acetate emulsion 11%;

[0036] Tertiary acrylic emulsion 41%;

[0037] Polyvinyl succinate 4.2%;

[0038] Chitosan 1.6%;

[0039] Silicone defoamer 1.1%;

[0040] Sorbic acid 1.2%;

[0041] Deionized water 38.9%.

[0042] The preparation method of this water-resistant paper straw adhesive is as follows:

[0043] 1) Heat 29% deionized water to 81°C, add 1.6% chitosan while stirring, keep warm for 2 hours, cool down to 11°C, add 1.1% silicone defoamer and 1.2% sorbic acid, stir evenly, and prepare Get A component;

[0044] 2) Dissolve 4.2% polyvinyl succinate in 11% deionized water, add dropwise to 41% tert-acrylic emulsion at 78°C, raise the temperature to 87°C and keep it warm for 31 minutes; then cool down to 11°C, add 11 % polyvinyl acetate emulsion, stirred evenly to obtain component B;

[0045] 3) Mix component A and component B evenly to obtain a ...

Embodiment 2

[0047] A water-resistant paper straw adhesive, comprising the following components by mass percentage:

[0048] Vinegar Acrylic Emulsion 18%;

[0049] Styrene-acrylic emulsion 37%;

[0050] Maleic acid polyvinyl alcohol crosslinking compound 2.1%;

[0051] Cellulose ether 1.2%;

[0052] Polyether silicon defoamer 1.2%;

[0053] Sodium dehydroacetate 1.2%;

[0054] Deionized water 41.9%.

[0055] The preparation method of this water-resistant paper straw adhesive is as follows:

[0056] 1) Heat 31.9% deionized water to 71°C, add 1.2% cellulose ether while stirring, keep warm for 2 hours, cool down to 41°C, add 1.2% polyether defoamer and 1.2% sodium dehydroacetate, stir well , to obtain component A;

[0057] 2) Dissolve 2.1% maleic acid polyvinyl alcohol cross-linking compound in 11% deionized water, add it dropwise to 37% styrene-acrylic emulsion at 78°C, raise the temperature to 91°C and keep it warm for 31min; then cool down to 11°C, Add 18% vinegar-acrylic emulsion ...

Embodiment 3

[0060] A water-resistant paper straw adhesive, comprising the following components by mass percentage:

[0061] Vinegar-acrylic emulsion 22%;

[0062] Styrene-acrylic emulsion 11%;

[0063] Pure acrylic emulsion 31%;

[0064] Maleic acid polyvinyl alcohol crosslinking compound 3.9%;

[0065] Edible starch 2.2%;

[0066] Grease defoamer 1.2%;

[0067] Sodium dehydroacetate 1.2%;

[0068] Deionized water 26.1%.

[0069] The preparation method of this water-resistant paper straw adhesive is as follows:

[0070] 1) Heat 11.1% deionized water to 71°C, add 2.2% edible starch while stirring, keep warm for 2 hours, cool down to 41°C, add 1.2% grease defoamer and 1.2% sodium dehydroacetate, stir well, Prepare A component;

[0071] 2) Dissolve 3.9% maleic acid polyvinyl alcohol cross-linking compound in 11% deionized water, add dropwise to the mixture of 11% styrene-acrylic emulsion and 31% pure acrylic emulsion at 78°C, heat up to 89°C and keep it warm 31min; then lower the temp...

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Abstract

The invention is applicable to the technical field of glue, and discloses a waterproof paper straw adhesive and a preparation method thereof, and the waterproof paper straw adhesive comprises the following components: modified vinyl acetate emulsion, acrylate copolymer emulsion, a high-concentration organic compound, water-soluble resin, an auxiliary agent and deionized water. The adhesive has the advantages of large initial adhesion force, high final adhesion strength, good fluidity and good on-machine adaptability, and is beneficial to improving the production efficiency of the paper straws; and the paper straw prepared from the adhesive is hard, the water-resistant temperature of the finished straw can reach -11 DEG C to 1111 DEG C, and the paper straw is not easy to warp and disperse.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-resistant paper straw adhesive and a preparation method thereof. Background technique [0002] Straw is a common utensil for drinking beverages, whether it is packaged beverages or on-site brewed beverages, it is very popular. Plastic straws have a particularly shocking impact on the environment and organisms due to their large number, wide use, small size, fast production and fast consumption, difficult to sort and recycle, and non-degradable characteristics. According to incomplete statistics, about 8.11 million tons of plastics are discharged into the ocean every year around the world, causing great pollution and damage to the environment and organisms. [0003] Paper straws have become a relatively perfect substitute for plastic straws due to their relatively simple manufacturing process, high cost performance, and environmentally friendly and degradable features. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/00C09J131/04C09J125/14C09J133/04C09J11/06C09J11/08
CPCC09J131/00C09J125/14C09J133/04C09J11/06C09J11/08C08L2205/02C08L2205/035C08L31/04C08L29/04C08L5/08C08K5/092C08L1/26C08L25/14C08L3/02
Inventor 陈志飞
Owner DONGGUAN STAR COSM POLYMER
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