CN105289484A - Efficient adsorption activated carbon fiber cloth and preparation method thereof - Google Patents
Efficient adsorption activated carbon fiber cloth and preparation method thereof Download PDFInfo
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Abstract
The invention discloses a piece of efficient adsorption activated carbon fiber cloth and a preparation method thereof. According to the efficient adsorption activated carbon fiber cloth, a piece of activated carbon fiber cloth with the specific surface area of 2000-3000m<2>/g and the center hole volume of 0.5-0.8cm<3>/g is used as a carrier, an adsorbent is filled through a dipping method, and the finished product is obtained after drying; after adsorption saturation of the efficient adsorption activated carbon fiber cloth, adsorbed substances are removed through drying, namely the original adsorption performance of the efficient adsorption activated carbon fiber cloth is recovered. The efficient adsorption activated carbon fiber cloth has the advantages that the efficient adsorption activated carbon fiber cloth can quickly adsorb moisture and hazardous substances in closed space, and the total saturation adsorption capacity can reach 10 times of self weight, so that the adsorption efficiency is improved; the components namely the activated carbon fiber cloth and the adsorbent adsorb simultaneously, so that the adsorption rate is increased; the efficient adsorption activated carbon fiber cloth is prepared through dipping and drying, so that the operation is simple, and the cost is reduced.
Description
Technical field
The present invention relates to adsorption technology field, particularly a kind of efficient adsorption active carbon fiber fabrics and preparation method thereof.
Background technology
Confined space, such as, indoor after decoration, automobile and subway carriage inside, market place builet below the ground etc., air flow property is poor, easily produces many toxic and harmfuls, has a strong impact on health; And in the confined space of the type such as mine, tunnel, air dewetting is then the important measures of raising personnel life quality.So for the air quality problems of confined space, the efficient adsorption technology without power consumption becomes study hotspot.Adsorption technology mainly utilizes harmful substance in sorbent air and dehumidifying, the advantage that to have that efficiency is high, pollution-free, equipment is simple, useful constituent is renewable etc. unique, but the core of restriction absorption purifying effect is the development of adsorbent.
At present, adsorbent mainly contains molecular sieve, active carbon etc.The applying date is on October 15th, 2008, application number be 200810199158.0 Chinese invention patent disclose a kind of high selectivity hygroscopic agent with shell-core structure and preparation method thereof, being summarized as a kind of inorganic porous material is kernel, hydrophilic polymer ultrathin membrane is the compound hygroscopic agent of shell, can high-selectivity adsorption steam; The applying date is on August 4th, 2010, application number be 201010245238.2 Chinese invention patent disclose a kind of dehumidifying, the drier that eliminates the unusual smell and preparation method thereof, be summarized as a kind of adsorption desiccant comprising water absorbing agent, active carbon and ultra-high molecular weight polyethylene, its preparation method comprises the steps such as matched moulds, sintering, cutting.The adsorbent of existing use has following defect: the first, preparation method and step complexity, and cost is high; The second, adsorption efficiency can not practical requirement, and the rate of adsorption is also lower.
Summary of the invention
Goal of the invention: for the problems referred to above, the object of this invention is to provide a kind of efficient adsorption active carbon fiber fabrics and preparation method thereof, solves the noxious substance in confined space and air dewetting problem, improves adsorption efficiency and speed, reduces costs.
Technical scheme: a kind of efficient adsorption active carbon fiber fabrics, by mass percentage, the content of composition component and each component is as follows: active carbon fiber fabrics 40%-70%, adsorbent 30%-60%, and both mass percent sums are 100%; The specific area of wherein said active carbon fiber fabrics is 2000-3000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.
Further, described adsorbent is any one in silica gel, aluminium oxide, polyacrylamide.
Prepare a method for described efficient adsorption active carbon fiber fabrics, comprise the steps:
Step one: active carbon fiber fabrics carries out oven dry pretreatment, bake out temperature 110-120 DEG C, drying time 4-5h, remove undesired impurities, be cooled to room temperature stand-by;
Step 2: the described active carbon fiber fabrics taking cooling in step one by formula is stand-by;
Step 3: take adsorbent by formula, and it is stand-by to be mixed with the adsorbent aqueous solution;
Step 4: will take stand-by described active carbon fiber fabrics in step 2, impregnated in the described adsorbent aqueous solution prepared in step 3, place 2-8h, the described adsorbent aqueous solution all adsorbs by active carbon fiber fabrics described in dipping process, and described adsorbent is inserted in described active carbon fiber fabrics;
Step 5: be arranged in baking oven by the described NACF flooding placement in step 4 and dry, bake out temperature 110-120 DEG C, drying time 1-3h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the described efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product, avoids the material in its suction air, affects absorption property.
Further, be 7:1 as the ratio of the active carbon fiber fabrics quality taken in the distilled water quality of adsorbent solvent and described step 2 in described step 3.
Further, after described efficient adsorption active carbon fiber fabrics absorption is saturated, dries the material removed and absorb, namely recover its original absorption property.
Beneficial effect: compared with prior art, advantage of the present invention is: first, active carbon fiber fabrics in product component of the present invention, there is a large amount of micropore in its fiber, form high-specific surface area, be suitable for absorption gas phase and liquid phase small-molecule substance, the adsorbable harmful macromolecular substances of the central hole structure simultaneously had, after inserting another component adsorbent again, overall saturated extent of adsorption can reach 10 times of overall deadweight, substantially increase adsorption efficiency and saturated extent of adsorption, the harmful substance effectively in absorption confined space and unnecessary steam; The second, the active carbon fiber fabrics in instant component and adsorbent carry out suction-operated simultaneously, accelerate the rate of adsorption; 3rd, efficient adsorption active carbon fiber fabrics is by flood and oven dry is prepared, simple to operate, reduces costs.
Detailed description of the invention
Below in conjunction with specific embodiment, illustrate the present invention further, these embodiments should be understood only be not used in for illustration of the present invention and limit the scope of the invention, after having read the present invention, the amendment of those skilled in the art to the various equivalent form of value of the present invention has all fallen within the application's claims limited range.
Embodiment 1:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and aluminium oxide, and wherein the specific area of active carbon fiber fabrics is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 115 DEG C, dries 4h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 70g;
Step 3: take aluminium oxide 30g, 30g aluminium oxide is mixed with the aluminium oxide aqueous solution, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 490g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, 30g alumina dissolution is in 490ml distilled water required oxidation aluminum water solution;
Step 4: 70g active carbon fiber fabrics be impregnated in the 490ml aluminium oxide aqueous solution prepared, dipping 2h, in dipping process, the aluminium oxide aqueous solution all adsorbs by active carbon fiber fabrics, and aluminium oxide is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 120 DEG C, drying time 1h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 2:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and aluminium oxide, and wherein the specific area of active carbon fiber fabrics is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 115 DEG C, dries 5h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 70g;
Step 3: take aluminium oxide 30g, 30g aluminium oxide is mixed with the aluminium oxide aqueous solution, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 490g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, 30g alumina dissolution is in 490ml distilled water required oxidation aluminum water solution;
Step 4: 70g active carbon fiber fabrics be impregnated in the 490ml aluminium oxide aqueous solution prepared, dipping 4h, in dipping process, the aluminium oxide aqueous solution all adsorbs by active carbon fiber fabrics, and aluminium oxide is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 115 DEG C, drying time 2h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 3:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and aluminium oxide, and wherein the specific area of active carbon fiber fabrics is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 2000m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 120 DEG C, dries 4h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 70g;
Step 3: take aluminium oxide 30g, 30g aluminium oxide is mixed with the aluminium oxide aqueous solution, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 490g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, and 30g alumina dissolution is the aluminium oxide aqueous solution in 490ml distilled water;
Step 4: 70g active carbon fiber fabrics be impregnated in the 490ml aluminium oxide aqueous solution prepared, dipping 8h, in dipping process, the aluminium oxide aqueous solution all adsorbs by active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 110 DEG C, drying time 3h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 4:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and polyacrylamide, and wherein the specific area of active carbon fiber fabrics is 2500m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 2500m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 115 DEG C, dries 4h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 50g;
Step 3: take polyacrylamide 50g, 50g polyacrylamide is mixed with polyacrylamide solution, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 350g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, is dissolved in 350ml distilled water by 50g polyacrylamide and is polyacrylamide solution;
Step 4: 50g active carbon fiber fabrics be impregnated in the 350ml polyacrylamide solution prepared, dipping 2h, in dipping process, polyacrylamide solution all adsorbs by active carbon fiber fabrics, and polyacrylamide is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 120 DEG C, drying time 1h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 5:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and polyacrylamide, and wherein the specific area of active carbon fiber fabrics is 2500m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 2500m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 110 DEG C, dries 5h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 50g;
Step 3: take polyacrylamide 50g, 50g polyacrylamide is mixed with polyacrylamide solution, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 350g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, is dissolved in 350ml distilled water by 50g polyacrylamide and is polyacrylamide solution;
Step 4: 50g active carbon fiber fabrics be impregnated in the 350ml polyacrylamide solution prepared, dipping 8h, in dipping process, polyacrylamide solution all adsorbs by active carbon fiber fabrics, and polyacrylamide is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 115 DEG C, drying time 3h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 6:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and silica gel, and wherein the specific area of active carbon fiber fabrics is 3000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 3000m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 115 DEG C, dries 4h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 40g;
Step 3: take silica gel 60g, 60g silica gel is mixed with aqueous solution of silica gel, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 280g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, 60g silica gel is dissolved in 280ml distilled water and is aqueous solution of silica gel;
Step 4: 40g active carbon fiber fabrics be impregnated in the 280ml aqueous solution of silica gel prepared, dipping 2h, in dipping process, aqueous solution of silica gel all adsorbs by active carbon fiber fabrics, and silica gel is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 115 DEG C, drying time 1h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
Embodiment 7:
A kind of efficient adsorption active carbon fiber fabrics, component is active carbon fiber fabrics and silica gel, and wherein the specific area of active carbon fiber fabrics is 3000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.Preparation method's concrete steps are as follows:
Step one: specific area is 3000m
2/ g, middle pore volume is 0.5-0.8cm
3the NACF of/g is arranged in baking oven, 115 DEG C, dries 5h, removes undesired impurities, takes out and to be cooled to room temperature for subsequent use;
Step 2: take in step one and cool stand-by active carbon fiber fabrics 40g;
Step 3: take silica gel 60g, 60g silica gel is mixed with aqueous solution of silica gel, ratio wherein as the active carbon fiber fabrics quality taken in the distilled water quality of solvent and step 2 is 7:1, namely distilled water is 280g, proportion due to distilled water is 1, the weight of 1ml distilled water is 1g, 60g silica gel is dissolved in 280ml distilled water and is aqueous solution of silica gel;
Step 4: 40g active carbon fiber fabrics be impregnated in the 280ml aqueous solution of silica gel prepared, dipping 8h, in dipping process, aqueous solution of silica gel all adsorbs by active carbon fiber fabrics, and silica gel is inserted in active carbon fiber fabrics;
Step 5: be arranged in baking oven by the NACF completing dipping absorption and dry, temperature 115 DEG C, drying time 3h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
The sample above-mentioned seven kinds of embodiments obtained and reference substance carry out comparing of liquid absorption amount and iodine sorption value, and reference substance is " same to health " NACF, and it is existing commercially available prod.The mensuration of liquid absorption amount all operates without the expansion absorption amount method of inspection according to " contact Wound dressing test method " YY/T0471.1-2004 part 1 liquid-absorbent-3.2; The mensuration of iodine sorption value all measures according to the method for GB GB/T12496.8-1999 wood activated charcoal test method-iodine sorption value defined.The comparative result of liquid absorption amount and iodine sorption value is as shown in table 1.
Liquid absorption amount and the iodine sorption value of table 1 eight groups of samples compare
| Sample ID | Liquid absorption amount (g/g) | Iodine sorption value (mg/g) |
| " same to health " NACF | 7.84 | 1216 |
| Embodiment 1 | 11.78 | 1724 |
| Embodiment 2 | 11.64 | 1789 |
| Embodiment 3 | 11.89 | 1773 |
| Embodiment 4 | 12.46 | 2194 |
| Embodiment 5 | 12.51 | 2185 |
| Embodiment 6 | 12.94 | 2268 |
| Embodiment 7 | 12.87 | 2297 |
As shown in Table 1, the uptake of sample to liquid that seven kinds of embodiments obtain is significantly higher than reference substance " same to health " NACF to the uptake of liquid; The adsorptive value of sample to iodine that seven kinds of embodiments obtain is significantly higher than reference substance " same to health " NACF to the adsorptive value of iodine; In embodiment, dipping inserts the sample of polyacrylamide and silica gel, and it is to liquid absorption amount and the sample adsorptive value of iodine being inserted to aluminium oxide higher than dipping.Product of the present invention has better adsorption effect to liquid and small-molecule substance.
The sample above-mentioned seven kinds of embodiments obtained and reference substance carry out formaldehyde, phenol, the comparing of aniline three kinds of harmful substance saturated extent of adsorption, and reference substance is " same to health " NACF, and it is existing commercially available prod.The mensuration of the saturated extent of adsorption of formaldehyde, phenol and aniline is corresponding to aniline health test method in free phenol content in GB/T16129 residential area Formaldehyde in Atmosphere health test method AHMT AAS, GB/T30773-2014 phenolic resin by gas chromatography and GBT16130-1995 residential area air-gas chromatography operation respectively.The saturated extent of adsorption comparative result of eight groups of sample PARA FORMALDEHYDE PRILLS(91,95)s, phenol, aniline is as shown in table 2.
The saturated extent of adsorption of table 2 eight groups of sample PARA FORMALDEHYDE PRILLS(91,95)s, phenol, aniline compares
As shown in Table 2, seven kinds of embodiments obtain sample PARA FORMALDEHYDE PRILLS(91,95), phenol, aniline three kinds of harmful substances saturated extent of adsorption be significantly higher than reference substance " same to health " NACF to the saturated extent of adsorption of three.Product of the present invention has better adsorption effect to harmful macromolecular substances.
Claims (5)
1. an efficient adsorption active carbon fiber fabrics, is characterized in that: by mass percentage, and the content of composition component and each component is as follows: active carbon fiber fabrics 40%-70%, adsorbent 30%-60%, and both mass percent sums are 100%; The specific area of wherein said active carbon fiber fabrics is 2000-3000m
2/ g, middle pore volume is 0.5-0.8cm
3/ g.
2. a kind of efficient adsorption active carbon fiber fabrics according to claim 1, is characterized in that: described adsorbent is any one in silica gel, aluminium oxide, polyacrylamide.
3. prepare a method for efficient adsorption active carbon fiber fabrics as claimed in claim 1 or 2, it is characterized in that: comprise the steps:
Step one: active carbon fiber fabrics carries out oven dry pretreatment, bake out temperature 110-120 DEG C, drying time 4-5h, remove undesired impurities, be cooled to room temperature stand-by;
Step 2: the described active carbon fiber fabrics taking cooling in step one by formula is stand-by;
Step 3: take adsorbent by formula, and it is stand-by to be mixed with the adsorbent aqueous solution;
Step 4: will take stand-by described active carbon fiber fabrics in step 2, impregnated in the described adsorbent aqueous solution prepared in step 3, place 2-8h, the described adsorbent aqueous solution all adsorbs by active carbon fiber fabrics described in dipping process, and described adsorbent is inserted in described active carbon fiber fabrics;
Step 5: be arranged in baking oven by the described NACF completing dipping in step 4 and dry, bake out temperature 110-120 DEG C, drying time 1-3h, stops when changing to zero gravity drying, obtains efficient adsorption active carbon fiber fabrics;
Step 6: the described efficient adsorption active carbon fiber fabrics made in step 5 is carried out fast sealing packaging, makes finished product.
4. preparation method according to claim 3, is characterized in that: be 7:1 as the ratio of the quality of the active carbon fiber fabrics taken in the quality of the distilled water of adsorbent solvent and described step 2 in described step 3.
5. preparation method according to claim 3, is characterized in that: after described efficient adsorption active carbon fiber fabrics absorption is saturated, dries the material removed and adsorb, namely recover its original absorption property.
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Application publication date: 20160203 |