CN104226092A

CN104226092A - Application of silica gel as air purifying and drying agent

Info

Publication number: CN104226092A
Application number: CN201410206491.5A
Authority: CN
Inventors: 白瑛
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-06-09
Filing date: 2014-05-15
Publication date: 2014-12-24

Abstract

The invention relates to a new application of a silica-gel material and particularly relates to an application of silica gel as an air purifying and drying agent. The silica gel is used in homes, storerooms, cars, furniture or refrigerators. The silica gel can adsorb benzene, formaldehyde or smell in refrigerators or inhibit mould generated in storage of peanut kernels. The particle size of the silica gel is 20-50 meshes. When in package, the silica gel is placed in a bag made of polypropylene needle-punched non-woven cloth. The silica-gel material is used for purifying the air and removing harmful gases such as formaldehyde, and has a stronger effect compared with the existing active carbon when being used for removing the harmful gases such as the formaldehyde. The appearance of the silica-gel material is white and microsphere-shaped, and is attractive and regular. The silica-gel material is placed in the bag made of the polypropylene needle-punched non-woven cloth, so that the clean and sanitary effects are achieved, no toxicity and smell are generated, good breathable effect can be well achieved, the batch production can be achieved and the price is low; the silica-gel material is simple in manufacturing process, easy to obtain, wide in use place, can absorb multiple harmful gases and plays an antibacterial effect by drying air.

Description

A kind of silica gel is as the application of purification of air drier

Technical field

The present invention relates to a kind of novelty teabag of silica gel material, specifically a kind of silica gel is as the application of purification of air drier.

Background technology

Decoration marked prevails now, but so also to bring in various furniture formaldehyde to the infringement of human body, pernicious gas benzene, formaldehyde etc. in the past in air, usual employing active carbon carrys out filtration, purification, but active carbon outward appearance is coarse irregular, easily produces grey black, therefore its effect is also good not, deal with improperly and also can cause secondary pollution, be not easy to popularization and the use of the product for civilian use.When active carbon uses, be substantially all placed in paper bag, air permeable effect is bad, assimilation effect must be made bad, and be placed in ventilative bag, with regard to easy sticky black wood charcoal on the other hand time people take dynamic, the use of active carbon is restricted.

Summary of the invention

A kind of silica gel is as the application of purification of air drier.Described silica gel is gross porosity microbead type silica gel.

Described silica gel is used for indoor at home, in storehouse, in car, in furniture or in refrigerator.

The mould that described silica gel can adsorb benzene, formaldehyde, refrigerator peculiar smell or produce in suppressing shelled peanut to store.

Described silica gel particle diameter is 20-50 order.

Described silica gel particle diameter is 40 orders

Be placed in during described silica gel packaging in bag that polypropylene fibre needle punched non-woven fabrics makes.

Tool of the present invention has the following advantages:

1. performance is high: silica gel material of the present invention is used for purification of air except pernicious gases such as formaldehyde, than existing active carbon except the pernicious gas effects such as formaldehyde are strong.

2. appearance looks elegant: silica gel of the present invention is white microbead-shaped, rule attractive in appearance.

3. clean hygiene, good permeability: silica gel of the present invention is placed in the bag that polypropylene fibre needle punched non-woven fabrics makes, therefore clean hygiene is nonpoisonous and tasteless, and can reach good air permeable effect, and adsorption effect is better.This Material Strength of polypropylene fibre acupuncture nonwoven cloth bag of the present invention is good, not fragile simultaneously.

4. can be mass, cheap; Manufacturing process is simple, is easy to obtain, and field of employment is extensive, can absorb multiple pernicious gas and reach bacteriostasis by dry air.

5. silica-gel desiccant absorption property of the present invention high, Heat stability is good, stable chemical nature, have higher mechanical strength and environmental protection.

Detailed description of the invention:

Silica gel product is generally used as catalyst or as catalyst carrier, its water imbibition can reach 80-90%, normally uses sodium metasilicate and sulfuric acid reaction, the chemical composition of silica gel and physical arrangement, determines it and have the advantages that other materials many are difficult to replace.

Silica gel preparation has been routine techniques means now, and general preparation method is as follows:

1. prepare sodium metasilicate, silicic acid stone and soda ash and powdery coal eutectic reaction under hot conditions, then cool, and forms after pulverizing with water extraction;

2. sodium metasilicate and sulfuric acid or hydrochloric acid through gel detergent, drying, bake and form.

Silica gel city of the present invention is purchased from all chemical reagent shops, sky

Embodiment one

By next for purchase, silica gel---gross porosity microbead type silica gel is sub-packed in polypropylene fibre acupuncture nonwoven cloth bag, and the gross porosity microbead type silica gel of employing is 20 orders, 30 orders, 40 orders or the multiple pattern of 50 orders, is automatically completed by automatic packaging machine.

Embodiment two

In FASHIONHOME after firm finishing, by ready-made silica gel (3.5g/ bag), throw in by every cubic metre of 20 pouches, also 20 pouches can be put into a large nylon net bag and throw.

Embodiment three

The purification of air in new car: by ready-made silica gel (3.5g/ bag), 50-60 pouch is put into two large nylon net bags, places before and after in car respectively.

Embodiment four

Shelled peanut storage process mould fungus inhibition, put into 500 grams of shelled peanuts in polybag, put 1 pouch bottom shelled peanut, a pouch is placed on shelled peanut top, fastens plastic bag mouth, observe having no mould, and the shelled peanut visible mold of this product is not put in contrast after three months.

Application Example---air purifying preparation absorption check experiment

Time: on June 19th, 2013

Temperature: room temperature

One, object is adsorbed: benzene mixed.

1. experiment container: diameter 165 millimeters. the plastic preserving box of high 120 millimeters 2.

2. in 2 containers, place 2 supports respectively.

3. on support, place tiny balls silica gel air freshener 3.60 grams respectively, shell granular active carbon 3.62 grams, both are even is placed in permeable fiber bag.

4. pour 100 grams of thinners (being commonly called as banana oil) below the support in container into, its composition is organic chemical industry's solvents such as benzene mixed, ethyl acetate, acetone.

5. container cover is sealed.

Within 6.7 months 1 day, air purifying preparation and active carbon are taken out, weighs respectively; Calculate adsorption rate.

Air purifying preparation 5.4 grammes per square metre.

Adsorption rate=(5.4 grams-3.6 grams)/3.6 grams × 100%=50%

Active carbon 4.6 grams

Adsorption rate=(4.6 grams-3.62 grams)/3.6 grams × 100%=27%

Two. absorption object: formaldehyde

Time: on July 10th, 2013

Temperature: room temperature

Experiment condition is same with (one).

Air purifying preparation 3.6 grams.

Active carbon 3.8 grams.

100 grams, formaldehyde.

August 10 took out, and weighed respectively; Calculate adsorption rate:

Air purifying preparation: 6.5 grams.

Adsorption rate=(6.5 grams-3.6 grams)/3.6 grams × 100%=80.5%

Active carbon: 4.9 grams

Adsorption rate=(4.9 grams-3.8 grams)/3.8 grams × 100%=28.9%

Note:

Material source:

Micro-spherical silica gel is produced by white sand river, Qingdao catalyst plant;

Active carbon, formaldehyde buying is all chemical reagent shops from sky, Shenyang City.

Thinner is purchased in building materials shop.

Balance is that Tianjin heavenly steed weighing apparatus factory produces.

Three. independent experiment: refrigerator eliminates the unusual smell, get air purifying preparation 3.5 grams, be placed in fridge freshness retaining room, take out after one month and be weighed as 4.1 grams.

Adsorption rate=(4.1 grams-3.5 grams)/3.5 grams × 100%=17.1%.

Note: 3.5 grams of air purifying preparations placed respectively by three floor dividing plate in fridge freshness retaining room, what weigh sampling is intermediate layer.In fridge freshness retaining room, egg placed by bottom, and upper two layers places cucumber, sharp green pepper, tomato, dry bean curd, hare's-lettuce, the greengrocery that celery etc. are often edible, and every day, even normal unlatching used.

Claims

1. a silica gel is as the application of purification of air drier.

2. application according to claim 1, is characterized in that: described silica gel is gross porosity microbead type silica gel.

3. application according to claim 1, is characterized in that: described silica gel is used for indoor at home, in storehouse, in car, in furniture or in refrigerator.

4. application according to claim 1, is characterized in that: the mould that described silica gel can adsorb benzene, formaldehyde, refrigerator peculiar smell or produce in suppressing shelled peanut to store.

5. application according to claim 1, is characterized in that: described silica gel particle diameter is 20-50 order.

6. application according to claim 1, is characterized in that: described silica gel particle diameter is 40 orders.

7. application according to claim 1, is characterized in that: be placed in during described silica gel packaging in bag that polypropylene fibre needle punched non-woven fabrics makes.