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Method for preparing high solid content polyacrylate tow cigarette filter rod adhesive in one step

A technology of filter rods and adhesives, applied in the direction of ester copolymer adhesives, e-liquid filter elements, adhesive types, etc., can solve the problems of high sizing amount and high comprehensive cost, and achieve less sizing amount and better storage And the effect of low transportation cost and simple production process

Inactive Publication Date: 2011-07-13
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned adhesives are all composed of a copolymer emulsion, and its solid content is generally lower than 50%, which requires a higher amount of sizing when used, and the overall cost is higher

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: The emulsion copolymer used as an adhesive for polypropylene tow cigarette filter rods is mainly composed of copolymers of acrylic acid and its esters or methacrylate polymerizable monomers, with water as the dispersion medium, and does not contain organic The solvent has a solid content of 60% by mass and a viscosity of 100MPa·s to 140MPa·s at 25°C. The mixed monomer used for primary nucleation of the copolymer emulsion is 60% of the total amount of monomers, and the monomer mixing ratio is 20:80 by mass percentage of soft and hard segment monomers; the mixed monomer used for secondary nucleation is 60% of the total monomers 40% of the total amount, the monomer mixing ratio is 75:25 by mass percentage of soft and hard segment monomers. The "one-step method" is used to directly carry out the emulsion polymerization reaction, and the prepared polymer emulsion can be directly used for bonding polypropylene tow filter rods.

[0035] Concrete preparation steps a...

Embodiment 2

[0038] Example 2: The emulsion copolymer used as an adhesive for polypropylene tow cigarette filter rods is mainly composed of copolymers of acrylic acid and its esters or methacrylate polymerizable monomers, with water as the dispersion medium, and does not contain organic The solvent has a solid content of 75% by mass and a viscosity of 200MPa·s to 300MPa·s at 25°C. The mixed monomer used for the primary nucleation of the copolymer emulsion is 40% of the total amount of monomers, and the monomer mixing ratio is 50:50 in the mass percentage of soft and hard segment monomers; the mixed monomer used for the secondary nucleation is the total amount of monomers. 60% of the total amount, the monomer mixing ratio is 50:50 by mass percentage of soft and hard segment monomers. The "one-step method" is used to directly carry out the emulsion polymerization reaction, and the prepared polymer emulsion can be directly used for bonding polypropylene tow filter rods.

[0039] Concrete pre...

Embodiment 3

[0042] Example 3: The emulsion copolymer used as an adhesive for polypropylene tow cigarette filter rods is mainly composed of copolymers of acrylic acid and its esters or methacrylate polymerizable monomers, with water as the dispersion medium, and does not contain organic The solvent has a solid content of 68% by mass and a viscosity of 200MPa·s to 300MPa·s at 25°C. The mixed monomer used for primary nucleation of the copolymer emulsion is 20% of the total amount of monomers, and the monomer mixing ratio is 75:25 by mass percentage of soft and hard segment monomers; the mixed monomer used for secondary nucleation is 20% of the total monomers 80% of the total amount, the monomer mixing ratio is 40:60 by mass percentage of soft and hard segment monomers. The "one-step method" is used to directly carry out the emulsion polymerization reaction, and the prepared polymer emulsion can be directly used for bonding polypropylene tow filter rods.

[0043] Concrete preparation steps a...

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Abstract

The invention relates to a method for preparing a high solid content polyacrylate tow cigarette filter rod adhesive and belongs to the technical field of adhesives. The preparation method comprises the following steps of: initiating secondary nucleation controllably in situ; and directly preparing acrylic acid or methyl acrylic acid and ester polymer emulsion thereof with solid content of 60 to 75 percent and viscosity of 100 to 300 MPa.s at the temperature of 25 DEG C in one step, wherein water serves as a dispersing medium and an organic solvent is not provided. Compared with the original method, the method has the characteristics of capacity of directly preparing various polymer emulsion with different soft hard section ratio, simple preparation process, low energy consumption, low production cost and the like. The obtained product has the characteristics of no toxicity, noncombustibility, no 'three wastes', convenience of storage and transportation, safety in use and the like. When the product is used for performing adhesive bonding on a polyacrylate tow cigarette filter rod, spicy irritation and tar content of a cigarette can be effectively reduced. The adhesive has the advantages of small using amount, high drying and film-forming speed, capacity of accepting modification of various adhesives and the like.

Description

technical field [0001] The invention relates to a preparation method of an acrylate copolymer emulsion adhesive, which is specially used as an adhesive in the production of polypropylene tow cigarette glued filter rods, and belongs to the technical field of adhesive preparation. Background technique [0002] Cigarette filter materials are mainly divided into two categories, one is cellulose diacetate, and the other is polypropylene tow, both of which need to be bonded when used in the production of filter rods. Adhesives used with cellulose diacetate are mainly: triacetin, 2-methyl-1,3-propanediol diacetate, 2,2-dimethylpropanediol diacetate and diacetin, etc. Non-volatile liquid organic plasticizer. [0003] For polypropylene tow, compared with cellulose diacetate, it has the advantages of cheapness and easy availability of raw materials. It is especially suitable for the preparation of medium and low-grade cigarette filter rods, but because of its lack of strong polarity ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/12C09J133/08C08F220/14C08F220/18C08F220/06C08F2/26C08F2/30A24D3/06
Inventor 孙彦琳王红杨万明黄云华
Owner KUNMING UNIV OF SCI & TECH
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