CN108722343A - A kind of diatomite pellet and preparation method for architecture indoor deodorization - Google Patents

A kind of diatomite pellet and preparation method for architecture indoor deodorization Download PDF

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Publication number
CN108722343A
CN108722343A CN201810493570.7A CN201810493570A CN108722343A CN 108722343 A CN108722343 A CN 108722343A CN 201810493570 A CN201810493570 A CN 201810493570A CN 108722343 A CN108722343 A CN 108722343A
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diatomite
pellet
parts
architecture indoor
preparation
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陈庆
昝航
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Chengdu New Keli Chemical Science Co Ltd
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Chengdu New Keli Chemical Science Co Ltd
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/013—Deodorant compositions containing animal or plant extracts, or vegetable material
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/01—Deodorant compositions
    • A61L9/014—Deodorant compositions containing sorbent material, e.g. activated carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/21—Use of chemical compounds for treating air or the like
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/20—Method-related aspects
    • A61L2209/22—Treatment by sorption, e.g. absorption, adsorption, chemisorption, scrubbing, wet cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/06—Polluted air

Abstract

The invention discloses a kind of diatomite pellets and preparation method for architecture indoor deodorization.The diatomite pellet is made by following steps：A, the diatomite of absorbing and deodorizing agent is made；B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, obtain stable suspension；C, suspension is sprayed on the diatomite surface of absorbing and deodorizing agent, further sprays terephthalic acid (TPA)/hexamethylene, generate nanocrystal network structure protective layer；D, granulation obtains the diatomite pellet for architecture indoor deodorization in granulator.The present invention passes through in kieselguhr adsorption plant deodorant; further network structure protective layer is generated in interfacial polymerization; the diatomaceous specific surface area of significant increase; increase absorption total amount; improve absorbing and deodorizing ability; and the slow release effect of deodorant can be effectively realized, to extend the use of deodorant to the greatest extent.

Description

A kind of diatomite pellet and preparation method for architecture indoor deodorization
Technical field
The present invention relates to diatomite fields, and in particular to the diatomaceous preparation of deodorizing effect, more particularly, to a kind of use In the diatomite pellet and preparation method of architecture indoor deodorization.
Background technology
All stimulation olfactory organs, cause people unhappy and the smell of damage living environment is referred to as odorant pollutant. Odor pollution can also cause the discomfort on body other than being had an impact to smell and causing the offending feelings such as psychology detest, Common symptom has nausea, headache, loss of appetite, smell imbalance, insomnia or even emotional instability.Wherein to the mankind endanger compared with Big has more than 50 kinds of hydrogen sulfide, ammonia, methane, thio-alcohol, dimethyl disulfide, Trimethylamine, styrene and phenols etc..They are to human body Breathing, digestion, cardiovascular, endocrine and nervous system can all cause different degrees of murder by poisoning, and some aromatic compounds are even Human body is set to generate distortion, canceration.Therefore, how appropriate improvement stench has become one of the focus that people study.
Air clearing product has various patterns currently on the market, wherein playing purification air, deodorization, adjusting humidity Air clearing product is few, and toilet deodorization is carried out usually using air freshener spraying, but can only short period after spraying It inside tells on, and need to repeatedly spray, be more troublesome.In addition activated carbon can be used to be adsorbed, but due to activated carbon itself It is smaller that total amount is adsorbed caused by micropore negligible amounts and specific surface area are smaller, which has deodorizing effect bad and use effective Time shorter defect.And diatom ooze have it is porous, suction-operated is much stronger than the characteristic of activated carbon, therefore can be fabricated to air Purify product, can deodorization and sterilization evolution air conditioning humidity, thus, attract attention in administering deodorization.
Number of patent application 201711015064.9 discloses a kind of modification infusorial earth deodorization packet and preparation method thereof.Including pressing According to the following component of parts by weight meter：35 ~ 50 portions of diatomite, 10 ~ 15 parts of activated carbon, 5 ~ 10 parts of matrine, stays 10 ~ 15 parts of tealeaves Blue 10 ~ 12 parts fragrant, 3 ~ 5 parts of black poplar, 2 ~ 4 parts of mountain locust tree, 4 ~ 6 parts of China tree.The invention using ultrasonic wave mode to diatomite into Row is modified, and keeps diatomite softer by vibration, and inside is easy to form mesh, convenient for mixture and other substances and diatom The mixing of soil, while mesh also allows for internal raw material deodorization, so as to extend the service life of deodorization packet, slows down deodorization packet Weak duration, the adsorbable peculiar smell of activated carbon, containing more phenol, alcohol type organic in tealeaves, phenols is capable of purifying air, to reach To the effect of deodorization, the impurity such as the adsorbable iron filings of magnetite, to reduce harm of the magnetisable material to human body.
Number of patent application 201710145834.5 discloses a kind of deodorizing fungus-proof diatomite system of daily life field application Product and preparation method.Deodorizing fungus-proof diatomite product includes by mass fraction：Diatomite is 5 ~ 30 parts, and siliceous material is 5 ~ 30 Part, lime is 20 ~ 40 parts, and wood fibre is 3 ~ 20 parts, and bonding agent is 5 ~ 35 parts.The selection of article components avoids harmful add Add the use of agent, and ensure not will produce harmful substance during use, guarantee is provided for the health of human body of user.Diatom The ultra micro pore of soil has stronger water imbibition and deodorization adsorption effect, and efficiently solving retaining for product moisture leads to bacterium The problem of growth, improves product anti-mold effect.Ultra micro pore can store moisture, and the humidity of air declines indoors When, the release of moisture is carried out, the adjustment of indoor humidity is effectively carried out.
Number of patent application 201610943981.2 discloses a kind of Sludge deodorant, includes the raw material of following parts by weight：Silicon 30 ~ 40 parts of diatomaceous earth, 20 ~ 50 parts of coal dust, 3 ~ 10 parts of magnesium chloride powder, 3 ~ 5 parts of sustained release agent, 5 ~ 7 parts of aluminium oxide powder, polyacrylamide 20 ~ 30 parts of 4 ~ 6 parts of amine, 15 ~ 25 parts of land plaster, 15 ~ 20 parts of ferrous sulfate, 20 ~ 40 parts of holding effect accelerating agent and aromatic.Holding effect promotees It is one or more of permanganate, ferrate mixture into agent.Aromatic includes the raw material of following parts by weight：It is fragrant 10 ~ 15 parts of 5 ~ 10 parts of essence, 15 ~ 20 parts of fragrances, 4 ~ 8 parts of activating agent, 3 ~ 5 parts of talcum powder and hollow silica ball.This hair The bright preparation method for also disclosing Sludge deodorant.For the Sludge deodorant of the invention in sludge system, effective acting time is long, The foul gas in sludge is fast and effectively removed, it is easy to operate, it is highly reliable, it can be widely applied to the various sludge in life And industrial sludge.And required additive capacity is low, it is of low cost；Production method is simple, also reduces production cost.
Number of patent application 201710625536.6 discloses a kind of diatomite forming composition with moisture absorbing and deodorizing function And preparation method thereof, the weight percent group of diatomite forming composition each component becomes：Diatomite 5% ~ 40%, tourmaline powder 5% ~ 20%, inorganic cleanser 1% ~ 5%, acrylic resin adhesive 0.1% ~ 1.0%, surplus is land plaster, and inorganic cleanser is will be expensive Metallic catalyst is attached to the composite granule that the inorganic functional material of stratiform obtains.The invention is a kind of with moisture absorbing and deodorizing function The diatomite forming composition of diatomite forming composition and preparation method thereof harmful aldehydes, Ammonia, benzene hydrocarbon gase it is dense Also pernicious gas can be effectively dispelled when spending relatively low, prompt effect is good, and purification purpose can be reached in the short time；Diatomite forming composition Have stronger adsorption capacity, moisture sorption effect strong moisture；The manufacture craft of diatomite forming composition is simple, the effect of purification By force, it is easy to industrialized production.
It can be seen that in the prior art in deodorising product, the effect for spraying air freshener is poor, and need to repeatedly spray, It is extremely onerous, and the existing effect using absorbing and deodorizings such as activated carbon, diatom oozes is equally undesirable, there are adsorbance is limited, It holds time the problems such as short.
Invention content
Effectively to solve above-mentioned technical problem, the present invention propose a kind of diatomite pellet for architecture indoor deodorization and Preparation method can effectively improve diatomaceous specific surface area, increase absorption total amount, and have deodorization slow release effect, effect dimension It is long to hold the time.
The specific technical solution of the present invention is as follows：
A kind of preparation method of diatomite pellet for architecture indoor deodorization, the diatomite pellet are by absorption plant The diatomite surface of deodorant so that with terephthalic acid (TPA) interfacial polymerization occurs for amidized Cellulose nanocrystal body, in diatom Native Surface Creation nanocrystal network structure protective layer, then be made through granulation, specific preparation process is：
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, further equal on surface by suspension made from the sprinkling step b of the diatomite surface of absorbing and deodorizing agent made from step a Even spray terephthalic acid (TPA)/cyclohexane solution so that amidized Cellulose nanocrystal body is with terephthalic acid (TPA) diatomaceous Interfacial polymerization occurs for surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
Preferably, in the step a, the ingredient of plant deodorant is plant essence powder, such as Rose plants flavor powder, lemon Plant essence powder etc..
Preferably, in the step a, 20 ~ 30 parts by weight of plant deodorant, native 70 ~ 80 parts by weight of diatomite essence.
Preferably, in the step a, the speed being stirred is 200 ~ 300r/min, and the time is 20 ~ 30min.
Preferably, in the step b, active hydrophilic stabilizer be neopelex, lauryl sodium sulfate or At least one of dodecyl sodium sulfate.
Preferably, in the step b, amidized 25 ~ 40 parts by weight of Cellulose nanocrystal body, active hydrophilic stabilizer 2 ~ 4 parts by weight, 56 ~ 73 parts by weight of water.
Preferably, in terephthalic acid (TPA)/cyclohexane solution described in step c, 30 ~ 40 parts by weight of terephthalic acid (TPA), hexamethylene 60 ~ 70 parts by weight.
Preferably, in the step c, the diatomite surface sprinkling suspension of absorbing and deodorizing agent, which is subject to, to be moistened.Very few difficulty To form protective layer, the protective layer at most formed excessively is blocked up, influences deodorant release；Phthalic acid/hexamethylene of sprinkling simultaneously Solution is to ensure that with terephthalic acid (TPA) on diatomaceous surface interfacial polymerization film forming occurs for amidized Cellulose nanocrystal body i.e. It can.For the reticular membrane stable quality of further control interface polymerization, preferred spraying suspension amount is the diatom of absorbing and deodorizing agent The 5% of soil property amount；Phthalic acid/cyclohexane solution fountain height is the 3% of the diatomite quality of absorbing and deodorizing agent.
Preferably, in the step d, the grain size of diatomite pellet is 10 ~ 30 μm.
Diatomite is a kind of siliceous sedimentary rock, and performance is stablized, and acidproof, large pore volume, aperture are big, large specific surface area, adsorptivity By force, and current potential is negative, and absolute value is big, and absorption positive charge ability is strong；The electrostatic attraction and crystal grain table generated by crystal structure Dispersion force existing for face makes minerals have very strong adsorption, therefore has fabulous deodorizing capability, coordinates plant deodorization Agent, on diatomite surface so that with terephthalic acid (TPA) interfacial polymerization occurs for amidized Cellulose nanocrystal body, in diatomite table Face generates nanocrystal network structure protective layer, further increases the specific surface area and porosity of diatomite pellet, enhancing absorption Ability.
The above of the present invention also proposes a kind of diatomite pellet for architecture indoor deodorization, by being adsorbed with plant The diatomite surface interface polymerization of deodorant generates network structure protective layer, and the diatomaceous specific surface area of significant increase increases Total amount is adsorbed, and can realize the slow release effect of deodorant, to extend the use of deodorant to the greatest extent.
Beneficial effects of the present invention are：
1. proposing the method for preparing the diatomite pellet for architecture indoor deodorization in diatomite adsorption plant deodorant.
2. the present invention is by kieselguhr adsorption plant deodorant, diatomite surface so that amidized cellulose nanometer With terephthalic acid (TPA) interfacial polymerization occurs for crystal, in diatomite Surface Creation nanocrystal network structure protective layer, significant increase Diatomaceous specific surface area increases absorption total amount, improves absorbing and deodorizing ability.
3. the present invention can effectively realize the slow release effect of deodorant, to extend the use of deodorant to the greatest extent.
Specific implementation mode
In the following, the present invention will be further described in detail by way of specific embodiments, but this should not be interpreted as to the present invention Range be only limitted to example below.Without departing from the idea of the above method of the present invention, according to ordinary skill The various replacements or change that knowledge and customary means are made, should be included in the scope of the present invention.
Embodiment 1
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, suspension made from rapid b is sprayed on the diatomite surface of absorbing and deodorizing agent made from step a, makes surface wettability, into one Step uniformly sprays terephthalic acid (TPA)/cyclohexane solution on surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is rose fragrant fine powder；In step b, active hydrophilic stabilizer is dodecyl Benzene sulfonic acid sodium salt；In step d, the average grain diameter of diatomite pellet is 20 μm；
In step a, 25 parts by weight of plant deodorant, native 75 parts by weight of diatomite essence；In step b, amidized cellulose nanometer 30 parts by weight of crystal, 3 parts by weight of active hydrophilic stabilizer, 67 parts by weight of water；Terephthalic acid (TPA)/cyclohexane solution described in step c In, 35 parts by weight of terephthalic acid (TPA), 65 parts by weight of hexamethylene；
In step a, the speed being stirred is 250r/min, time 25min.
Embodiment 2
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, suspension made from rapid b is sprayed on the diatomite surface of absorbing and deodorizing agent made from step a, makes surface wettability, into one Step uniformly sprays terephthalic acid (TPA)/cyclohexane solution on surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is lemonene fine powder；In step b, active hydrophilic stabilizer is dodecyl Sodium sulphate；In step d, the average grain diameter of diatomite pellet is 15 μm；
In step a, 22 parts by weight of plant deodorant, native 78 parts by weight of diatomite essence；In step b, amidized cellulose nanometer 27 parts by weight of crystal, 3 parts by weight of active hydrophilic stabilizer, 70 parts by weight of water；Terephthalic acid (TPA)/cyclohexane solution described in step c In, 32 parts by weight of terephthalic acid (TPA), 68 parts by weight of hexamethylene；In step a, the speed that is stirred is 220r/min, and the time is 28min。
Embodiment 3
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, suspension made from rapid b is sprayed on the diatomite surface of absorbing and deodorizing agent made from step a, makes surface wettability, into one Step uniformly sprays terephthalic acid (TPA)/cyclohexane solution on surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is plant essence；In step b, active hydrophilic stabilizer is dodecyl sulphur Sour sodium；In step d, the average grain diameter of diatomite pellet is 25 μm；
In step a, 27 parts by weight of plant deodorant, native 73 parts by weight of diatomite essence；In step b, amidized cellulose nanometer 35 parts by weight of crystal, 4 parts by weight of active hydrophilic stabilizer, 61 parts by weight of water；Terephthalic acid (TPA)/cyclohexane solution described in step c In, 37 parts by weight of terephthalic acid (TPA), 63 parts by weight of hexamethylene；In step a, the speed that is stirred is 280r/min, and the time is 23min。
Embodiment 4
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, suspension made from rapid b is sprayed on the diatomite surface of absorbing and deodorizing agent made from step a, makes surface wettability, into one Step uniformly sprays terephthalic acid (TPA)/cyclohexane solution on surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is flavoring rose essence；In step b, active hydrophilic stabilizer is detergent alkylate Sodium sulfonate；In step d, the average grain diameter of diatomite pellet is 10 μm；
In step a, 20 parts by weight of plant deodorant, native 80 parts by weight of diatomite essence；In step b, amidized cellulose nanometer 25 parts by weight of crystal, 2 parts by weight of active hydrophilic stabilizer, 73 parts by weight of water；Terephthalic acid (TPA)/cyclohexane solution described in step c In, 30 parts by weight of terephthalic acid (TPA), 70 parts by weight of hexamethylene；In step a, the speed that is stirred is 200r/min, and the time is 30min。
Embodiment 5
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, suspension made from rapid b is sprayed on the diatomite surface of absorbing and deodorizing agent made from step a, makes surface wettability, into one Step uniformly sprays terephthalic acid (TPA)/cyclohexane solution on surface, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is plant essence；In step b, active hydrophilic stabilizer is dodecyl sulphur Sour sodium；In step d, the average grain diameter of diatomite pellet is 30 μm；
In step a, 30 parts by weight of plant deodorant, native 70 parts by weight of diatomite essence；In step b, amidized cellulose nanometer 40 parts by weight of crystal, 4 parts by weight of active hydrophilic stabilizer, 56 parts by weight of water；Terephthalic acid (TPA)/cyclohexane solution described in step c In, 40 parts by weight of terephthalic acid (TPA), 60 parts by weight of hexamethylene；In step a, the speed that is stirred is 300r/min, and the time is 20min。
Comparative example 1
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, the material that step a is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
In step a, the ingredient of plant deodorant is flavoring rose essence；In step b, the average grain diameter of diatomite pellet is 20 μm ；
In step a, 25 parts by weight of plant deodorant, native 75 parts by weight of diatomite essence；
In step a, the speed being stirred is 250r/min, time 25min.
Diatomite pellet made from above-described embodiment 1 ~ 5 and comparative example 1 tests its maximal absorptive capacity and odor strength, surveys The method or condition for sign of taking temperature are as follows：
Maximal absorptive capacity：It is 1m in volume3Closed container in be full of ammonia and hydrogen sulfide, environment temperature be 25 DEG C, it is relatively wet Degree is 55%, and ammonia concentration detector is respectively adopted and concentration of hydrogen sulfide detector measures initial concentration, is put into the 1g present invention and is made Diatomite pellet, until ammonia and hydrogen sulfide reach equilibrium concentration, initial concentration A0, equilibrium concentration A1, then（A0-A1） × 1 can calculate adsorbed gas quality C1, C1/ 1g is diatomaceous maximal absorptive capacity.
Odor strength：It is 1m in volume3Closed container in be full of ammonia and hydrogen sulfide, environment temperature be 25 DEG C, relatively Humidity is 55%, and ammonia concentration detector is respectively adopted and concentration of hydrogen sulfide detector measures initial concentration C, according to formula I=a+ BlogC calculates odor strength, and a, b are to have the related constant of foul smell property.It is then placed in 1kg diatomite produced by the present invention Pellet measures gas concentration in 7d, 15d and 30d, and calculates odor strength respectively.
The results are shown in Table 1.
Table 1：

Claims (10)

1. a kind of preparation method of diatomite pellet for architecture indoor deodorization, it is characterised in that：The diatomite pellet is By on the diatomite surface of absorption plant deodorant so that with terephthalic acid (TPA) circle occurs for amidized Cellulose nanocrystal body Face polymerize, and is made in diatomite Surface Creation nanocrystal network structure protective layer, then through granulation, specific preparation process For：
A, plant deodorant and diatomite essence soil are added in circulating air driven mixer, agitated mixing obtains absorbing and deodorizing The diatomite of agent；
B, amidized Cellulose nanocrystal body and active hydrophilic stabilizer are added to the water, are dispersed with stirring, obtain stable suspersion Liquid；
C, it by suspension made from the sprinkling step b of the diatomite surface of absorbing and deodorizing agent made from step a, further uniformly sprays Drench terephthalic acid (TPA)/cyclohexane solution so that amidized Cellulose nanocrystal body is with terephthalic acid (TPA) on diatomaceous surface Interfacial polymerization occurs, generates nanocrystal network structure protective layer；
D, the material that step c is obtained is pelletized in granulator, obtains the diatomite pellet for architecture indoor deodorization.
2. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step a, the plant essence powder of plant deodorant.
3. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step a, 20 ~ 30 parts by weight of plant deodorant, native 70 ~ 80 parts by weight of diatomite essence.
4. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step a, the speed being stirred is 200 ~ 300r/min, and the time is 20 ~ 30min.
5. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step b, active hydrophilic stabilizer be neopelex, lauryl sodium sulfate or dodecyl sodium sulfate in extremely Few one kind.
6. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step b, amidized 25 ~ 40 parts by weight of Cellulose nanocrystal body, 2 ~ 4 parts by weight of active hydrophilic stabilizer, 56 ~ 73 weight of water Part.
7. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In terephthalic acid (TPA)/cyclohexane solution described in step c, 30 ~ 40 parts by weight of terephthalic acid (TPA), 60 ~ 70 parts by weight of hexamethylene.
8. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In step c, suspension made from the diatomite surface sprinkling step b of absorbing and deodorizing agent makes surface wettability.
9. the preparation method of a kind of diatomite pellet for architecture indoor deodorization according to claim 1, it is characterised in that： In the step d, the grain size of diatomite pellet is 10 ~ 30 μm.
10. a kind of diatomite pellet for architecture indoor deodorization that any one of claim 1 ~ 9 the method is prepared.
CN201810493570.7A 2018-05-22 2018-05-22 A kind of diatomite pellet and preparation method for architecture indoor deodorization Withdrawn CN108722343A (en)

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