CN106700117A - Composite foaming agent and preparation method thereof - Google Patents
Composite foaming agent and preparation method thereof Download PDFInfo
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- CN106700117A CN106700117A CN201710044120.5A CN201710044120A CN106700117A CN 106700117 A CN106700117 A CN 106700117A CN 201710044120 A CN201710044120 A CN 201710044120A CN 106700117 A CN106700117 A CN 106700117A
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- Prior art keywords
- zirconium phosphate
- foaming agent
- basic zirconium
- composite foamable
- agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
- C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
- C08J9/10—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
- C08J9/102—Azo-compounds
- C08J9/103—Azodicarbonamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2203/00—Foams characterized by the expanding agent
- C08J2203/18—Binary blends of expanding agents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2300/00—Characterised by the use of unspecified polymers
Abstract
The invention provides a composite foaming agent and a preparation method thereof. The composite foaming agent comprises a zirconium phosphate carrier and azodicarbonamide loaded on the zirconium phosphate carrier. Besides that the composite foaming agent can be refined to a nanoscale, the foaming agent carrier further has high load amount for the foaming agent and is favorable for reducing using cost. In addition, the preparation method is simple and practical and facilitates practical production and application.
Description
Technical field
The present invention relates to foaming technique field, more particularly to a kind of composite foamable agent and preparation method thereof.
Background technology
Microcellular plastics be a kind of abscess-size between 0.1~10 μm, cell density is 109~1015cells/cm3
In the range of the novel porous materials with hole-closing structure.Microporous foam is taught by the Suh of Massachusetts Institute Technology
Propose, if to be abscess-size also smaller than crack size in polymer for its fundamental design idea, micropore will not only be reduced
The performance of material, on the contrary can be with passivation crack tip, being capable of effective Anticrack；Additionally, micropore can also slow down polymer
The stress concentration of material internal, improves shock resistance.Fact proved, compared with unfoamed material, microporous foam material
Material has the excellent properties such as density is low, impact strength is high, good toughness, specific strength is high, fatigue life is long, is referred to as " 21 century
New material ", with preferable application prospect.
For microcellular plastics or microporous foam technology, foaming agent plays vital effect.Prepare foaming
The common foaming of plastics has two types：Physical blowing agent and CBA, need to combine super facing using physical blowing agent
Boundary's fluid technique, its cumbersome technique and high cost make it be difficult to be used widely in actual production, by contrast,
CBA uses relatively simple convenience, as the first-selection for preparing microcellular plastics.
For example, azodicarbonamide (AC) foaming agent is a kind of CBA commonly used in Plastics Processing Industry, decompose
When mainly discharge N2, CO and a small amount of CO2, gas forming amount is big, not combustion-supporting and have self-extinguishment, nontoxic, pollution-free and cheap, fits
For the resins such as polyethylene, polypropylene, polyvinyl chloride, ethene-vinyl acetate copolymer, ABS normal pressure foaming, pressure expansion or
Extrusion foaming etc..However, AC blowing-agent particles are thicker, easily reunite, it is difficult to dispersed in resin matrix, to foam process
Cause difficulty, and influence foaming product quality, easily make the yellowing of foaming product surface or bloom.
This is directed to, prior art mainly improves its using effect by refining AC particles, and generally passes through following four
Kind of mode refines AC particles：(1) comminution by gas stream；(2) by adding urea, surfactant or by being ultrasonically treated
Optimized etc. oxidation technology；(3) sodium chlorate oxidizing process；(4) recrystallization method.But, the AC that four kinds of methods are obtained more than
Grain diameter is still relatively thick, is micron level, and its improvement result is not obvious.
In order to further refine AC particles, prior art also teaches some compound foaming agents, such as Publication No.
The patent of CN102250374A discloses a kind of composite foamable agent based on metal-organic coordination polymer, with metal-organic
It is porous matrix, foaming agent is assembled into the duct of matrix to refine blowing-agent particle, prevents from reuniting；Publication No.
The patent of CN102250375A discloses a kind of composite foamable agent based on porous inorganic material, and it uses porous inorganic material
(molecular sieve, activated carbon, inorganic aerogels, inorganic oxide gel, silica gel) and non-silicon-based porous inorganic material are carrier, equally
It is to be assembled into foaming agent in the duct of porous material to refine foaming agent；Publication No. CN102898672A discloses a kind of micro-
Hole foamed plastic foaming agent, the attapulgite being modified with sodium tungstate as carrier, by AC foaming agents absorption carriage on carrier, can
Dispersing and disintegrating AC particles.However, load capacity of the foaming agent on carrier is relatively low in above-mentioned composite foamable agent, need to be put into when using compared with
Big amount, use cost is higher.In addition, the carrier in above-mentioned composite foamable agent is modified support, need to utilize in preparation process
Complicated modified technique carrys out modified support material, after modified carrier is formed, could as available support further with foaming
Agent is combined, and preparation section is complicated, relatively costly.
The content of the invention
In view of this, it is of the invention compound it is an object of the invention to provide a kind of composite foamable agent and preparation method thereof
Foaming agent has high capacity amount, advantageously reduces use cost.In addition, the preparation method is simple that the present invention is provided is easy, it is easy to
Production application.
The invention provides a kind of composite foamable agent, including basic zirconium phosphate carrier and the idol being carried on the basic zirconium phosphate carrier
Nitrogen diformamide.
Preferably, the basic zirconium phosphate is alpha zirconium phosphate.
Preferably, the lamellar spacing of the basic zirconium phosphate is 5~20nm.
Preferably, the azodicarbonamide is scattered between the lamella of basic zirconium phosphate and/or is adsorbed in the lamella of basic zirconium phosphate
Surface.
Preferably, the azodicarbonamide and the mass ratio of basic zirconium phosphate carrier are (0.25~2): 1.
Present invention also offers the preparation method of composite foamable agent described in above-mentioned technical proposal, comprise the following steps：
A) azodicarbonamide is mixed with solvent, foaming agent solution is formed；
B) basic zirconium phosphate is mixed with the foaming agent solution, is filtered, obtain composite foamable agent.
Preferably, the solvent is dimethyl sulfoxide (DMSO) and/or dimethylformamide.
Preferably, the step A) in, the quality of azodicarbonamide is (1~10) g with the volume ratio of solvent：(10~
500)mL。
Preferably, the step A) in, the temperature of the mixing is 30~80 DEG C；The step B) in, the mixing
Temperature is 40~100 DEG C.
Preferably, the azodicarbonamide and the mass ratio of basic zirconium phosphate are (0.25~2): 1.
Compared with prior art, the invention provides a kind of composite foamable agent, including basic zirconium phosphate carrier and it is carried on described
Azodicarbonamide on basic zirconium phosphate carrier.Compared with prior art, composite foamable agent of the invention is except can be thin by foaming agent
Change to outside Nano grade, its foaming agent carrier also has high capacity amount to foaming agent, can be up to the load capacity of foaming agent
Thousand milligrams per grams, advantageously reduce use cost.In addition, the preparation method is simple that the present invention is provided is easy, it is easy to actual production to answer
With.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the composite foamable agent powder outside drawing that the embodiment of the present invention 1 is provided；
Fig. 2 is the power spectrum test chart of the composite foamable agent that the embodiment of the present invention 1 is provided；
Fig. 3 is the sem test figure of the composite foamable agent that the embodiment of the present invention 1 is provided；
Fig. 4 is the thermal gravimetric analysis curve figure of the composite foamable agent that the embodiment of the present invention 1 is provided.
Specific embodiment
The invention provides a kind of composite foamable agent, including basic zirconium phosphate carrier and the idol being carried on the basic zirconium phosphate carrier
Nitrogen diformamide.
In the present invention, the basic zirconium phosphate loads foaming agent as the carrier in composite foamable agent, and the basic zirconium phosphate is preferred
It is alpha zirconium phosphate (i.e. α-ZrP).In the present invention, the lamellar spacing of the basic zirconium phosphate is preferably 5~20nm；It is advantageously implemented hair
The fine of infusion, reduces the reunion of foaming agent.
The present invention is not particularly limited to the source of basic zirconium phosphate, can be commercially available, or self-control, its preparation method can
To carry out as follows：
By zirconium oxychloride (ZrOCl2·8H2O), concentrated hydrochloric acid (36wt%-38wt%) is added to wiring solution-forming in deionized water
Ⅰ；SPA (85wt%), concentrated hydrochloric acid (36wt%-38wt%) are added to wiring solution-forming II in deionized water.Solution II is existed
Continuously it is added drop-wise in solution I at room temperature, reacts 1 hour, obtains suspension.Calculated according to two kinds of mixed cumulative volumes of solution,
Each reacting material concentration is respectively：Zirconium oxychloride (ZrOCl2·8H2O) concentration is 0.044~0.36mol/L, and phosphoric acid concentration is
2.0~10mol/L, concentration of hydrochloric acid is 0.50~4.0mol/L.
Gained suspension is transferred in the polytetrafluoroethylcontainer container of 100ml, filling degree is 40%-80%, by polytetrafluoro
Ethene container is sealed in water heating kettle, and hydro-thermal process 48~192 hours, room is naturally cooled to by water heating kettle at 180~240 DEG C
Temperature, opens kettle suction filtration, and it is 6~7 that filter cake to filtrate pH value is washed with deionized, and will be dried at filter cake in an oven 50~60 DEG C,
Obtain basic zirconium phosphate product.
In composite foamable agent of the invention, it is preferred that between azodicarbonamide is scattered in basic zirconium phosphate carrier sheet and/or inhale
Basic zirconium phosphate sheet surfaces are invested, the fine of azodicarbonamide is realized, the reunion of foaming agent is reduced, is conducive in foaming base
The dispersed of nanoscale is realized in body.
In composite foamable agent of the invention, the azodicarbonamide is preferably (0.25~2) with the mass ratio of basic zirconium phosphate：
1, more preferably (0.29~2)：1, more preferably (0.5~2)：There is excellent load to imitate to foaming agent for 1, i.e. carrier
Really, its load capacity may be up to thousands of milligrams per grams, advantageously reduce use cost.
The composite foamable agent that the present invention is provided, can not only make foaming agent be refined to Nano grade, overcome foaming agent easily to roll into a ball
Poly-, difficult scattered defect, and, in the composite foamable agent, carrier has excellent load effect to foaming agent, and load capacity can
Up to thousands of milligrams per grams, a small amount of product of the present invention of addition is that can reach good foaming effect, advantageously reduces use cost.
In addition, applicant contributes to reduction to foam through the exploration discovery that studies for a long period of time, basic zirconium phosphate carrier and the collocation of azodicarbonamide
Bubble nucleating barrier potential in journey, improves nucleation rate, increases the cell density of foamed matrix；And basic zirconium phosphate lamella is also escaped to gas
Ease has certain iris action, the gas loss in containment foaming process；And during use, the lamella of basic zirconium phosphate can be in azo two
Dissociation is broken under formamide decomposes the airflow function for producing, dispersed, improves the melt strength of foamed matrix, reduces abscess and breaks
Split.
Present invention also offers the preparation method of composite foamable agent described in above-mentioned technical proposal, comprise the following steps：
A) azodicarbonamide is mixed with solvent, foaming agent solution is formed；
B) basic zirconium phosphate is mixed with the foaming agent solution, is filtered, obtain composite foamable agent.
According to the present invention, azodicarbonamide is mixed with solvent first, form foaming agent solution.
Wherein, azodicarbonamide is commercially available conventional micron level product.In the present invention, the solvent is preferably diformazan
Base sulfoxide and/or dimethylformamide.The present invention is not particularly limited to the source of solvent, is general commercially available product.
In the present invention, the quality of the azodicarbonamide is preferably (1~10) g with the volume ratio of solvent：(10~500)
mL.In the present invention, the temperature that azodicarbonamide mixes with solvent is preferably 30~80 DEG C, more preferably 40~70 DEG C；It is described
The time of mixing is preferably 10~30min.
According to the present invention, after foaming agent solution is obtained, basic zirconium phosphate is mixed with the foaming agent solution, filtered, obtained
Composite foamable agent.
In the present invention, the basic zirconium phosphate is consistent with described in above-mentioned technical proposal, will not be repeated here.In the present invention, mixing
When, the azodicarbonamide in foaming agent solution is preferably (0.25~2) with the mass ratio of the basic zirconium phosphate of input：1, more preferably
(0.5~2)：1, more preferably (0.75~2)：1.
In the present invention, the temperature that basic zirconium phosphate mixes with foaming agent solution is preferably 40~100 DEG C, more preferably 50~80
℃.The time of the mixing is preferably 2~48 hours, more preferably 6~24 hours, after mixing, obtains composite foamable agent, originally
Micron order azodicarbonamide foaming agent be scattered in basic zirconium phosphate carrier interlayer and/or be adsorbed in basic zirconium phosphate sheet surfaces, realize
Fine dispersion.
In the present invention, after the mixing and filtering, preferably also washed and dried, after the washing and drying,
Obtain composite foamable agent.Filter cake will be washed after basic zirconium phosphate and foaming agent solution hybrid filtering；The washing is preferably
Washed with enough dimethyl sulfoxide (DMSO) or acetone, washing times are preferably more than twice.After washing, then it is dried, you can
To composite foamable agent.The drying is preferably dried under vacuum conditions, and dry temperature is preferably 50~100 DEG C.
The invention provides a kind of method for preparing composite foamable agent described in above-mentioned technical proposal, it can be seen that the present invention
Preparation method it is simple and easy to apply, be easy to actual large-scale production application.
For a further understanding of the present invention, the preferred embodiment of the invention is described with reference to embodiment, but
It should be appreciated that these descriptions are simply to further illustrate the features and advantages of the present invention, rather than to the claims in the present invention
Limitation.
Embodiment 1
2.5gAC foaming agents are dissolved in 100mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 20min at 60 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 15 hours is stirred at 70 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 70 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
By the grinding of gained nanocomposite foaming agent, as fine and smooth powder is dried, as shown in figure 1, the powder can keep
Not conglomeration for a long time.
Energy spectrum analysis test and sem test are carried out respectively to gained nanocomposite foaming agent, its result is respectively as schemed
Shown in 2 and Fig. 3.As seen from Figure 2, basic zirconium phosphate surface N content is greatly improved, and illustrates that AC foaming agents are carried on its surface；By
It is layer structure that Fig. 3 can be seen that gained composite foamable agent, and its lamellar spacing is 5~20nm.
Thermogravimetric analysis is carried out to α-ZrP raw materials and α-ZrP-AC nanocomposite foaming agents, test result is as shown in Figure 4.By
Fig. 4 can be seen that from room temperature and be heated to 500 DEG C, and the weight-loss ratio very little of α-ZrP is only about 3%；And α-ZrP-AC are composite foamed
Agent there are about 51% weight-loss ratio, be caused by the thermal decomposition of AC.Whole weightlessness process is divided into three phases：First weightless step exists
Between 160~225 DEG C, this stage, main decomposition by AC produced N2、CO2And a small amount of HNCO, weight-loss ratio is about 33%；Second loses
Between 225~250 DEG C, the urea of now first stage reaction generation is thermally decomposed weight step, generation HNCO and a small amount of
NH3, weight-loss ratio is about 8%；Between 250~345 DEG C, mainly cyclization abjection in biruea to 3rd weightless step there is
NH3, also a small amount of CO2Release, weight-loss ratio is about 10%.It follows that in α-ZrP-AC nanocomposite foaming agents, AC foaming
Agent is about 1 with the mass ratio of α-ZrP:1, α-ZrP carriers are 1040mg/g to the load capacity of AC foaming agents.
Embodiment 2
0.5gAC foaming agents are dissolved in 100mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 20min at 40 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 15 hours is stirred at 70 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 70 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested the pattern and load capacity of gained composite foamable agent, is as a result shown,
In gained composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined
The lamellar spacing of foaming agent is 5~20nm.AC foaming agents are 0.296 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers are sent out AC
The load capacity of infusion is 296mg/g.
Embodiment 3
1gAC foaming agents are dissolved in 200mL dimethylformamides, in constant temperature stirring mixing 20min at 50 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 20 hours is stirred at 50 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with acetone to Washing of Filter Cake twice after, refilter, be placed in vacuum drying oven,
After being dried at 80 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested the pattern and load capacity of gained composite foamable agent, is as a result shown,
In gained composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined
The lamellar spacing of foaming agent is 5~20nm.AC foaming agents are 0.328 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers are sent out AC
The load capacity of infusion is 328mg/g.
Embodiment 4
1.5gAC foaming agents are dissolved in 300mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 30min at 80 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 24 hours is stirred at 60 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 70 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested the pattern and load capacity of gained composite foamable agent, is as a result shown,
In gained composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined
The lamellar spacing of foaming agent is 5~20nm.AC foaming agents are 0.563 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers are sent out AC
The load capacity of infusion is 563mg/g.
Embodiment 5
2.0gAC foaming agents are dissolved in 300mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 20min at 60 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 24 hours is stirred at 60 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 60 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested the pattern and load capacity of gained composite foamable agent, is as a result shown,
In gained composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined
The lamellar spacing of foaming agent is 5~20nm.AC foaming agents are 0.824 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers are sent out AC
The load capacity of infusion is 824mg/g.
Embodiment 6
3.0gAC foaming agents are dissolved in 300mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 20min at 70 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 30 hours is stirred at 80 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 70 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested the pattern and load capacity of gained composite foamable agent, is as a result shown,
In gained composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined
The lamellar spacing of foaming agent is 5~20nm.AC foaming agents are 1.300 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers are sent out AC
The load capacity of infusion is 1300mg/g.
Embodiment 7
4.0gAC foaming agents are dissolved in 200mL dimethyl sulfoxide (DMSO)s, in constant temperature stirring mixing 20min at 60 DEG C, are sent out
Infusion solution；To 2.0g alpha zirconium phosphates (α-ZrP) is added in foaming agent solution, mixing 24 hours is stirred at 70 DEG C, mixed
Close solution；By mixed solution precipitate filter, and with dimethyl sulfoxide (DMSO) to Washing of Filter Cake twice after, refilter, be placed in vacuum baking
In case, after being dried at 80 DEG C, α-ZrP-AC nanocomposite foaming agents are obtained.
Method of testing according to embodiment 1 is tested gained composite foamable agent pattern and load capacity, is as a result shown, institute
Obtain in composite foamable agent, AC foaming agents insertion α-ZrP interlayers and absorption are refined to nanoscale in α-ZrP layer surfaces, are combined and send out
The lamellar spacing of infusion is 5~20nm.AC foaming agents are 1.703 with the mass ratio of α-ZrP:1, i.e. α-ZrP carriers foam to AC
The load capacity of agent is 1703mg/g.
As seen from the above embodiment, in the composite foamable agent that the present invention is provided, azodicarbonamide foaming agent can be realized
Fine, is carried on carrier with form of nanoparticles, and, carrier can be good at collocation with foaming agent, with excellent
Load effect, can make load capacity be up to thousands of milligrams per grams.
The explanation of above example is only intended to help and understands the method for the present invention and its core concept.To these embodiments
Various modifications will be apparent for those skilled in the art, generic principles defined herein can be with
Without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will not be limited
In the embodiments shown herein, and it is to fit to the most wide model consistent with principles disclosed herein and features of novelty
Enclose.
Claims (10)
1. a kind of composite foamable agent, it is characterised in that including basic zirconium phosphate carrier and the azo being carried on the basic zirconium phosphate carrier
Diformamide.
2. composite foamable agent according to claim 1, it is characterised in that the basic zirconium phosphate is alpha zirconium phosphate.
3. composite foamable agent according to claim 1 and 2, it is characterised in that the lamellar spacing of the basic zirconium phosphate is 5~
20nm。
4. composite foamable agent according to claim 1, it is characterised in that the azodicarbonamide is scattered in basic zirconium phosphate
Between lamella and/or it is adsorbed in the sheet surfaces of basic zirconium phosphate.
5. the composite foamable agent according to claim 1 or 4, it is characterised in that the azodicarbonamide is carried with basic zirconium phosphate
The mass ratio of body is (0.25~2)：1.
6. the preparation method of composite foamable agent any one of a kind of Claims 1 to 5, it is characterised in that including following step
Suddenly：
A) azodicarbonamide is mixed with solvent, foaming agent solution is formed；
B) basic zirconium phosphate is mixed with the foaming agent solution, is filtered, obtain composite foamable agent.
7. preparation method according to claim 6, it is characterised in that the solvent is dimethyl sulfoxide (DMSO) and/or dimethyl
Formamide.
8. preparation method according to claim 6, it is characterised in that the step A) in, the quality of azodicarbonamide
It is (1~10) g with the volume ratio of solvent：(10~500) mL.
9. preparation method according to claim 6, it is characterised in that the step A) in, the temperature of the mixing is 30
~80 DEG C；The step B) in, the temperature of the mixing is 40~100 DEG C.
10. preparation method according to claim 6, it is characterised in that the quality of the azodicarbonamide and basic zirconium phosphate
Than being (0.25~2)：1.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109180989A (en) * | 2018-09-19 | 2019-01-11 | 肇庆凯艺装饰制品有限公司 | A kind of PS plastic foaming agent and preparation method thereof |
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| CN111825968A (en) * | 2020-08-13 | 2020-10-27 | 合聚高分子材料科技(广东)有限公司 | Polylactic acid foaming material and preparation method thereof |
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| CN109180989A (en) * | 2018-09-19 | 2019-01-11 | 肇庆凯艺装饰制品有限公司 | A kind of PS plastic foaming agent and preparation method thereof |
| CN111825965A (en) * | 2020-08-13 | 2020-10-27 | 合聚高分子材料科技(广东)有限公司 | Foamable polylactic acid-containing plastic particle and preparation method and application thereof |
| CN111825968A (en) * | 2020-08-13 | 2020-10-27 | 合聚高分子材料科技(广东)有限公司 | Polylactic acid foaming material and preparation method thereof |
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Application publication date: 20170524 |