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Preparation method of environment-friendly cigarette adhesive

An environmentally friendly technology for cigarette glue, applied in adhesives, adhesive types, monocarboxylic acid ester copolymer adhesives, etc., can solve problems such as gel phenomenon, high monomer residue, use restrictions, etc., and achieve increased content , Reduce the cost of smoking glue, improve the effect of bonding performance

Inactive Publication Date: 2015-12-02
WUHAN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current difficulties in the application of polyvinyl acetate emulsion in the field of cigarette rubber mainly include: 1. The use of phthalate plasticizers is strictly limited; 2. Due to the particularity of vinyl acetate emulsion polymerization, it is easy to appear during synthesis Gel phenomenon, poor storage stability and high monomer residue

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An environment-friendly cigarette rubber emulsion is prepared by mixing component I and component II in a ratio of 5:1, and component I is made of monomer mixture, emulsifier, protective colloid, buffer, plasticizer and initiator as raw materials Prepared by semi-continuous emulsion polymerization; component II is commercially available ethylene-vinyl acetate copolymer (VAE705);

[0036] Wherein, the weight parts of each raw material of component I (based on monomer mixture mass 100):

[0037] Monomer mixture 100 (wherein vinyl acetate consumption accounts for 70% of monomer mixture)

[0038] Polyvinyl alcohol 5

[0039] Plasticizer 1

[0040] Emulsifier 0.6

[0041] Buffer 1.0

[0042] Initiator 0.3

[0043] water 100,

[0044] The manufacturing process of the component I is as follows:

[0045] Add water, buffer, polyvinyl alcohol and emulsifier into the three-necked flask, raise the temperature to 88°C under constant stirring, keep this temperature until the p...

Embodiment 2

[0047] An environment-friendly cigarette rubber emulsion is prepared by mixing component I and component II in a ratio of 1:6, and component I is made of monomer mixture, emulsifier, protective colloid, buffer, plasticizer and initiator as raw materials Prepared by semi-continuous emulsion polymerization; component II is commercially available ethylene-vinyl acetate copolymer (VAE705);

[0048] Wherein, the weight parts of each raw material of component I (based on monomer mixture mass 100):

[0049] Monomer mixture 100 (wherein vinyl acetate consumption accounts for 80% of monomer mixture)

[0050] Polyvinyl alcohol 8

[0051] Plasticizer 4

[0052] Emulsifier 0.8

[0053] Buffer 1.5

[0054] Initiator 0.6

[0055] water 100,

[0056] The manufacturing process of the component I is as follows:

[0057] Add water, buffer, polyvinyl alcohol and emulsifier into the three-necked flask, raise the temperature to 90°C under constant stirring, keep this temperature until the p...

Embodiment 3

[0059] An environment-friendly cigarette rubber emulsion is prepared by mixing component I and component II at a ratio of 1:10, and component I is made of monomer mixture, emulsifier, protective colloid, buffer, plasticizer and initiator as raw materials Prepared by semi-continuous emulsion polymerization; component II is commercially available ethylene-vinyl acetate copolymer (VAE705);

[0060] Wherein, the weight parts of each raw material of component I (based on monomer mixture mass 100):

[0061] Monomer mixture 100 (wherein vinyl acetate consumption accounts for 90% of monomer mixture)

[0062] Polyvinyl alcohol 10

[0063] Plasticizer 5

[0064] Emulsifier 1.2

[0065] buffer 2.0

[0066] Initiator 0.9

[0067] water 110,

[0068] The manufacturing process of the component I is as follows:

[0069] Add water, buffer, polyvinyl alcohol and emulsifier into the three-necked flask, raise the temperature to 92°C under constant stirring, keep this temperature until the p...

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Abstract

The invention discloses a preparation method of an environment-friendly cigarette adhesive. The preparation method comprises the following steps: mixing water, a pH buffer agent, polyvinyl alcohol and an emulsifying agent, heating the mixture to 88-92 DEG C until polyvinyl alcohol is completely dissolved, and cooling to 58-62 DEG C; adding one tenth of vinyl monomer mixture and one half of a plasticizer, mixing, heating the mixture to 73-77 DEG C, adding an initiator equal to one third of the initiator after 0.5-1.0 hour, and preserving the temperature for reaction; dropwise adding the remnant vinyl monomer mixture within 4-6 hours after an emulsion emits blue ray, replenishing one third of the initiator when one half of the vinyl monomer mixture is dropwise added, adding the remnant initiator after the vinyl monomer mixture is dropwise added, heating to 88-92 DEG C, and further reacting for 30-60 minutes; continuously stirring to naturally cool to 60-70 DEG C, adding the remnant plasticizer, uniformly mixing, and carrying out vacuumizing for 10-20 minutes; cooling to the room temperature, so as to obtain a component I; mixing the component I with ethylene-vinyl acetate polymers, so as to obtain the environment-friendly cigarette adhesive.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to an environment-friendly cigarette glue and a preparation method thereof. Background technique [0002] Cigarette glue is a certain amount of binder that needs to be used in cigarette production. Cigarette glue includes lap glue, mouthpiece glue, and packaging glue. Cigarette glue plays an important role in the quality control of cigarettes. With the improvement of environmental protection requirements, the national standard has more and more strict requirements on the content of harmful substances in cigarette rubber, and the development of high-speed adhesive environmental protection cigarette rubber products has become a new requirement of the cigarette industry. [0003] At present, most cigarette rubber is mainly composed of ethylene-vinyl acetate copolymer, and the cohesive force is enhanced by adding polyvinyl alcohol, and the fluidity is improved by adding phthala...

Claims

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Application Information

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IPC IPC(8): C09J131/04C09J123/08C09J11/06C08F218/08C08F220/18C08F220/06
Inventor 刘治田张云飞张旗郭嘉代梦琴蔡雄王成
Owner WUHAN INSTITUTE OF TECHNOLOGY
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