Filter additive material for selectively reducing hydrocyanic acid emission amount in mainstream smoke of cigarette and preparation method thereof

[0015] Sieve the porous hydroxyapatite to take 10g of 20-100mesh particles, add 100ml dimethyl sulfoxide, 20g trimethylammonium acetylhydrazide chloride and 3~5 drops of acetic acid to it, stir and react at 30°C for 24h, After the reaction, wash with water until neutral, soak in 1mol / L NaOH solution for 2h, wash with water until neutral, and then vacuum dry at 30-50°C for 10-30min to obtain quaternary amine alkalized porous material 1.

[0016] The porous material 1 is used as a composite filter additive material, the additive amount is 40 mg / cig, and the cigarette without any filter modified material is used as a control sample, and the cigarette smoking test is carried out on a smoking machine according to the standard smoking conditions, and according to The standard YCT253-2008 is used to detect the amount of hydrogen cyanide released. Three parallel samples were taken for each sample, and the results are shown in Table 1.

[0017] Table 1 Material 1 reduces the result of...

[0021] Sieve porous silica (commercially available) to take 10g of 20-100 mesh particles, add 180ml of methanol and 20g of (2-bromoethyl)trimethylammonium bromide, and stir at room temperature for 1h to make (2-bromoethyl) Base) trimethylammonium bromide was fully dissolved, then heated to 65°C, and reacted for 24h. After the reaction, wash with water until neutral, soak in 2mol / L NaOH solution for 1 h, wash with water until neutral, and then vacuum dry at 30-50° C. for 10-30 min to obtain quaternary amine alkalized porous material 2 .

[0022] The porous material 2 is used as a composite filter additive material, the additive amount is 20 mg / cig, and the cigarette without any filter modified material is used as a control sample, and the cigarette smoking test is carried out on a smoking machine according to the standard smoking conditions, and according to The standard YCT253-2008 is used to detect the amount of hydrogen cyanide released. Each sample has three parallel sampl...