A kind of formaldehyde protective mask of activated carbon fiber loaded biological enzyme
Technical field
The present invention relates to technical field of life, and in particular to a kind of formaldehyde protective port of activated carbon fiber loaded biological enzyme
Cover.
Background technique
Formaldehyde is a kind of common irritative gas, and toxic effect shows as acute and chronic stimulation and hereditary toxic action,
It is determined as carcinogenic by the World Health Organization and causes deformed material, be generally acknowledged allergen, and potential strong mutagen
One of.Anatomy experiment is generally existing in medical colleges and schools, and for dissecting room there are different degrees of formaldehyde pollution, concentration of formaldehyde is serious
Exceeded, medical colleges and schools teachers and students will be often in contact with formaldehyde, the health of the seriously polluted harm teachers and students of formaldehyde.Therefore, dense in high formaldehyde
It spends in environment, personal protection is extremely important.However since formaldehyde particles are tiny, generally conventional mask, common medical mask etc. are risen
Less than protective action.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention provides a kind of formaldehyde protection of activated carbon fiber loaded biological enzyme
Mask, can adsorb the particles such as particulate matter, bacterium and dust simultaneously, and especially PARA FORMALDEHYDE PRILLS(91,95) degradation becomes apparent.Skill of the invention
Art scheme is as follows: a kind of formaldehyde protective mask of activated carbon fiber loaded biological enzyme, include absorbing formaldehyde filter core, the filter core by
Outside to inside successively by non-woven fabrics I, electrostatic filter pulp, load bioenzyme activity Carbon fibe, non-woven fabrics II;
The described load bioenzyme activity Carbon fibe the preparation method is as follows:
A. the bean sprouts of germination 4-5 days, the polyamine oxidase enzyme activity at soybean germination 4-5 days the preparation of polyamine oxidase: are weighed
Property highest.4 DEG C of physiological saline of pre-cooling are added in the ratio of solid-liquid ratio 4:3, and are blended in high-speed homogenizer, filter, it will
Ammonium sulfate solids are added in filtrate, so that ammonium sulfate saturation degree is reached 35%, set in 4 DEG C of refrigerators 30 minutes, are centrifuged 15000rpm/min,
15min takes out supernatant I;Ammonium sulfate solids are continuously added into supernatant I, reach 70% saturation degree, then are placed in 4 DEG C of ice
30 minutes in case, it is centrifuged 15000rpm/min, 15min, liquid II is discarded supernatant, leaves and takes sediment, 7 times of bodies are added in sediment
Long-pending pH7.8,0.1mol/L PBS dissolution, are centrifuged 15000rpm/min, 15min, remove insoluble protein, isolate supernatant
Liquid III, supernatant III are polyamine oxidase;
B. it loads the preparation of bioenzyme activity Carbon fibe: activated carbon fibre being infiltrated in polyamine oxidase, continues to impregnate
12h, 40 DEG C of baking oven drying, so that load bioenzyme activity Carbon fibe be prepared.
Further, the formaldehyde protective mask of the activated carbon fiber loaded biological enzyme is equipped with outlet valve.
Further, the non-woven fabrics I, electrostatic filter pulp, load bioenzyme activity Carbon fibe, pass through between non-woven fabrics II
Thermosol glue bond.
Beneficial effects of the present invention are as follows: electrostatic filter pulp is to fine particle shape substance in air such as dust, cigarette, mist and micro- life
Object can effectively be isolated.The activated carbon fiber film of polyamine oxidase is loaded as adsorption layer, can not only be adsorbed small in air
Particulate matter, bacterial virus etc., polyamine oxidase in tunica fibrosa more has unexpected excellent effect to removal formaldehyde.This is inhaled
Attached layer can effectively adsorb the particulate matters such as dust in air, and polyamine oxidase amino forms hydroxymethyl derivative in conjunction with formaldehyde simultaneously,
To remove formaldehyde.It is this that by chemically reacting, so that formaldehyde is generated a kind of harmless substance be to eliminate formaldehyde ratio more thoroughly
Method.It is placed in protective mask in conclusion biological enzyme is supported on activated carbon fiber film, both can increase activity in this way
The adsorption function of charcoal, and bioanalysis degradation of formaldehyde can be played the role of, so that mask is really played protection formaldehyde, and without two
The advantages that secondary pollution.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of mask of the present invention;
Fig. 2 is the main view of mask of the present invention;
Fig. 3 is the top view of mask of the present invention;
Fig. 4 is the side view of mask of the present invention.
Wherein: 1, outlet valve, 2, non-woven fabrics I, 3, electrostatic filter pulp, 4, load bioenzyme activity Carbon fibe, 5, non-woven fabrics II.
Specific embodiment
The present invention is described further combined with specific embodiments below and explains, if without specified otherwise, institute of the present invention
It is the ordinary skill in the art with raw material and equipment.
Load bioenzyme activity Carbon fibe that following embodiment uses the preparation method is as follows:
A. the preparation of polyamine oxidase: weighing 4-5 days bean sprouts of germination, and 4 DEG C of physiology of pre-cooling are added in the ratio of solid-liquid ratio 4:3
Salt water, and blending in high-speed homogenizer is stirred on electromagnetic force blender filtrate and slow with 4 layers of filtered through gauze
Ammonium sulfate solids are added, so that ammonium sulfate saturation degree is reached 35%, sets 4 DEG C of refrigerators 30 minutes, are centrifuged 15000rpm/min, 15min,
Take out supernatant I;Continue to be slowly added to ammonium sulfate solids to supernatant I on magnetic stirrer, reaches 70% saturation degree, then
It sets 4 DEG C of refrigerators 30 minutes, is centrifuged 15000rpm/min, 15min, discards supernatant liquid II, leave and take sediment, be added in sediment
The pH7.8 of 7 times of volumes, 0.1mol/L PBS dissolution, are centrifuged 15000rpm/min, 15min, remove insoluble protein, separation
Supernatant III out, supernatant III are polyamine oxidase;
B. it loads the preparation of bioenzyme activity Carbon fibe: activated carbon fibre being infiltrated in polyamine oxidase, continues to impregnate
12h, 40 DEG C of baking oven drying, so that load bioenzyme activity Carbon fibe be prepared.
Method for determining formaldehyde is referring to phenol reagent method: taking 10ml color-comparison tube, is pressed with formaldehyde standard solution
Table prepares standard series.
It is respectively managed in table, is separately added into 0.4ml, 1% ammonium ferric sulfate solution shakes up.Place 15min.With 1cm cuvette, with
Under 630 μm of wavelength, with water reference, the absorbance of each pipe solution is measured.Using content of formaldehyde as abscissa, absorbance is vertical sits
Mark draws curve, and calculates regression slope, the calculating factor B g (microgram/absorbance) measured using slope inverse as sample.It surveys
Examination process: after sampling, absorbance (A) is measured by the operating procedure for drawing standard curve;While the measurement of every batch of sample, use
The unsampled absorbing liquid of 5ml makees reagent blank, measures the absorbance (A of reagent blank0), it is dense that formaldehyde in air is calculated according to formula
Spend C, unit mg/m3.Air formaldehyde concentration formula are as follows: indoor formaldehyde concentration C=(A-A0)×Bg/V0;
In the formula: the absorbance of A- sample solution;
A0The absorbance of blank solution;
Bg- calculates the factor, microgram/absorbance;
V0The sampling volume being converted under standard state, L.
Degradation Formaldehyde rate formula are as follows: Degradation Formaldehyde rate (%)=(1-C1/ C) × 100%;
In the formula: C is indoor formaldehyde concentration, C1For concentration of formaldehyde after degradation.
The formula that sampling volume is converted into standard state down-sampling volume is as follows: V0=VtT0/(273+t)·P/P0;
In the formula: V0Standard state down-sampling volume, L;
Vt- sampling volume, L=sampling flow (L/min) × sampling time (min);
The temperature of t- sampled point, DEG C;
T0Absolute temperature 273K under standard state;
The atmospheric pressure of P- sampled point, kPa;
P0Atmospheric pressure under standard state, 101kPa.
Embodiment 1
A kind of formaldehyde protective mask with biological enzyme purifying layer, ecto-entad successively by non-woven fabrics I 2, electrostatic filter pulp 3,
Bioenzyme activity Carbon fibe 4, non-woven fabrics II 5 are loaded, passes through thermosol glue bond between each layer;Formaldehyde protective mask is a kind of multilayer
The mask of safeguard structure, non-woven fabrics I 2, non-woven fabrics II 5 are gas permeability and all preferable nonwoven layer of adsorptivity, the second layer were
High-efficient, long service life is filtered, effectively filtration of particulate matters, dust, the particulate matters such as haze, PM2.5 can provide protective action
Electrostatic filter pulp 3, third layer are effectively to adsorb the particulate matters such as dust in air simultaneously and the load for the formaldehyde in air that can degrade biology
Enzymatic activity Carbon fibe 4.Non-woven fabrics has that moisture-proof, strength is good, air permeable waterproof, environmental protection, flexible, antibacterial is non-toxic and tasteless, closeness good.
Non-woven fabrics with load bioenzyme activity Carbon fibe 4 is combined not only increase load polyamine oxidase activated carbon fibre service life but also
Improve adsorption efficiency.Filter core is independent rectangular, band outlet valve 1, through examining the filter effect of formaldehyde to reach 90% or more.
Comparative example 1
The filter core ecto-entad non-woven fabrics of mask, electrostatic filter pulp are formed by the way that hot melt adhesive is bonding between non-woven fabrics, without negative
Carry bioenzyme activity Carbon fibe.It is 43% through detection formaldehyde filter effect.
Comparative example 2
The filter core ecto-entad non-woven fabrics of mask, active Carbon fibe, passes through hot melt adhesive between non-woven fabrics at electrostatic filter pulp
It is bonding to form.It is 70% through detection formaldehyde filter effect.
By comparing, the strainability for the filter core that embodiment obtains is substantially better than comparative example 1-2.
Above-described embodiment is only intended to citing and explanation of the invention, and is not intended to limit the invention to described
In scope of embodiments.Furthermore it will be appreciated by persons skilled in the art that the present invention is not limited to the above embodiment, according to this hair
Bright introduction can also make more kinds of variants and modifications, these variants and modifications all fall within present invention model claimed
In enclosing.