Modified polyactic acid composition for cigarette filter stick and preparation method thereof

Abstract

The invention relates to a modified polyactic acid composition for a cigarette filter stick and a preparation method thereof. The composition comprises following parts of raw materials, by weight, 100 parts of polyactic acid, 0.02-3 parts of polyactic acid-beta-cyclodextrin, 0.08-5 parts of sodium carbonate, 0.05-5 parts of sodium pyrrolidonecarboxylate, 0.01-4 parts of vitamin and 0.01-8 parts of polyacrylamide. The filter stick prepared through the polyactic acid composition is better in absorbing performance on smoke compared with the prior art and good in comprehensive performance, and a part of indexes of the filter stick exceed those of a cellulose acetate filter stick.

Description

technical field

[0001] The invention relates to the field of chemical industry, in particular to a modified polylactic acid composition for cigarette filter rods and a preparation method thereof. Background technique

[0002] The development of filter tip is the product of cigarette development to a certain stage. When the filter first appeared, it was mainly used as a mouth-shaped part of the cigarette for decoration. With the development of cigarette technology and people's pursuit of low-harm cigarettes, the filter has gradually changed from a dispensable position to an indispensable part of cigarettes, and has assumed the function of reducing tar and harm.

[0003] Cigarette filters have the functions of filtering, blocking and absorbing harmful components such as nicotine and tar in the smoke. In addition to the above functions, a good filter should also be able to improve the taste of the smoke, reduce the stimulation of the smoke on the mouth and the human body. Hea...

Examples

Embodiment 1

[0038] Embodiment 1: Modified polylactic acid composition for filter rods

[0039] 1. Composed of:

[0040] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

1.2

Sodium carbonate

1.0

Sodium pyrrolidone carboxylate

1.0

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0041] 2. Preparation method:

[0042] 1) Weigh each component, and air-dry the above-mentioned components at 50°C for 8 hours;

[0043] 2) Add all the components into the high-speed mixer according to the dosage, and disperse at a high speed of 500rpm for 30 minutes to obtain a modified mixture;

[0044] 3) The modified polylactic acid composition for tow was obtained by melting and extruding the modified mixture into pellets. The temperature of the twin-screws was controlled at 185° C., and the screw speed was 150 rpm.

[0045] 3. The filter rod prepared by...

Embodiment 2

[0050] Embodiment 2: Modified polylactic acid composition for filter rods

[0051] 1. Subdivided into:

[0052] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

0.2

Sodium carbonate

0.1

Sodium pyrrolidone carboxylate

0.2

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0053] 2, preparation method: with embodiment.

[0054] 3. The filter rod prepared by the modified composition was connected to a domestic brand of cigarettes for a comparative test, and the physical routine indicators of the control comparison samples were the same (open draw resistance 1100±30Pa, circumference 24.50±0.1mm). Evaluation methods of main adsorption properties: GB / T5606.1-2004, GB / T16447-2004, GB / T19069-2004, GB / T 23355-2009, GB / T23203.1-2008, GB / T 23356-2009. Please refer to Table 3 for details:

[0055] Table 3: Investigation and Results...

Embodiment 3

[0059] Embodiment 3: Modified polylactic acid composition for filter rods

[0060] 1. Composed of:

[0061] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

1.2

Sodium carbonate

1.0

Sodium pyrrolidone carboxylate

1.2

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0062] 2, preparation method: with embodiment 1.

[0063] 3. The filter rod prepared by the modified composition was connected to a domestic brand of cigarettes for a comparative test, and the physical routine indicators of the control comparison samples were the same (open draw resistance 1100±30Pa, circumference 24.50±0.1mm).

[0064] Evaluation methods of main adsorption properties: GB / T5606.1-2004, GB / T16447-2004, GB / T19069-2004, GB / T 23355-2009, GB / T 23203.1-2008, GB / T23356-2009. See Table 4 for the specific evaluation:

[0065] Table 4: Investigation ...

technical field

[0001] The invention relates to the field of chemical industry, in particular to a modified polylactic acid composition for cigarette filter rods and a preparation method thereof. Background technique

[0002] The development of filter tip is the product of cigarette development to a certain stage. When the filter first appeared, it was mainly used as a mouth-shaped part of the cigarette for decoration. With the development of cigarette technology and people's pursuit of low-harm cigarettes, the filter has gradually changed from a dispensable position to an indispensable part of cigarettes, and has assumed the function of reducing tar and harm.

[0003] Cigarette filters have the functions of filtering, blocking and absorbing harmful components such as nicotine and tar in the smoke. In addition to the above functions, a good filter should also be able to improve the taste of the smoke, reduce the stimulation of the smoke on the mouth and the human body. Hea...

Examples

Embodiment 1

[0038] Embodiment 1: Modified polylactic acid composition for filter rods

[0039] 1. Composed of:

[0040] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

1.2

Sodium carbonate

1.0

Sodium pyrrolidone carboxylate

1.0

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0041] 2. Preparation method:

[0042] 1) Weigh each component, and air-dry the above-mentioned components at 50°C for 8 hours;

[0043] 2) Add all the components into the high-speed mixer according to the dosage, and disperse at a high speed of 500rpm for 30 minutes to obtain a modified mixture;

[0044] 3) The modified polylactic acid composition for tow was obtained by melting and extruding the modified mixture into pellets. The temperature of the twin-screws was controlled at 185° C., and the screw speed was 150 rpm.

[0045] 3. The filter rod prepared by...

Embodiment 2

[0050] Embodiment 2: Modified polylactic acid composition for filter rods

[0051] 1. Subdivided into:

[0052] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

0.2

Sodium carbonate

0.1

Sodium pyrrolidone carboxylate

0.2

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0053] 2, preparation method: with embodiment.

[0054] 3. The filter rod prepared by the modified composition was connected to a domestic brand of cigarettes for a comparative test, and the physical routine indicators of the control comparison samples were the same (open draw resistance 1100±30Pa, circumference 24.50±0.1mm). Evaluation methods of main adsorption properties: GB / T5606.1-2004, GB / T16447-2004, GB / T19069-2004, GB / T 23355-2009, GB / T23203.1-2008, GB / T 23356-2009. Please refer to Table 3 for details:

[0055] Table 3: Investigation and Results...

Embodiment 3

[0059] Embodiment 3: Modified polylactic acid composition for filter rods

[0060] 1. Composed of:

[0061] composition

Weight (unit: kg)

Polylactic acid (D content 0.5%)

100

Oligolactyl-β-cyclodextrin

1.2

Sodium carbonate

1.0

Sodium pyrrolidone carboxylate

1.2

Vitamin C

0.04

Vitamin E

0.06

polyacrylamide

0.5

[0062] 2, preparation method: with embodiment 1.

[0063] 3. The filter rod prepared by the modified composition was connected to a domestic brand of cigarettes for a comparative test, and the physical routine indicators of the control comparison samples were the same (open draw resistance 1100±30Pa, circumference 24.50±0.1mm).

[0064] Evaluation methods of main adsorption properties: GB / T5606.1-2004, GB / T16447-2004, GB / T19069-2004, GB / T 23355-2009, GB / T 23203.1-2008, GB / T23356-2009. See Table 4 for the specific evaluation:

[0065] Table 4: Investigation ...

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