CN106883540A - A kind of high fire-retardance attapulgite based nano composite material and preparation method - Google Patents
A kind of high fire-retardance attapulgite based nano composite material and preparation method Download PDFInfo
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- CN106883540A CN106883540A CN201710244759.8A CN201710244759A CN106883540A CN 106883540 A CN106883540 A CN 106883540A CN 201710244759 A CN201710244759 A CN 201710244759A CN 106883540 A CN106883540 A CN 106883540A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L33/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
- C08L33/24—Homopolymers or copolymers of amides or imides
- C08L33/26—Homopolymers or copolymers of acrylamide or methacrylamide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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Abstract
The invention discloses a kind of high fire-retardance attapulgite based nano composite material and preparation method, including following component：Modified attapulgite clay, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate, inorganic combustion inhibitor, dispersant, polyacrylamide, stabilizer.Preparation method is：Heat first is carried out to Concave-convex clay rod and changes surname, then weighed polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate and be added in reactor, add water 1 ~ 3h of reaction, add modified Concave-convex clay rod, dispersant, stirred, 10 ~ 20min of ultrasound；Add inorganic combustion inhibitor, stabilizer, 10 ~ 20min of ultrasound, vacuum filtration simultaneously to wash filter cake, then dry filter cake, grind, you can.The attapulgite based nano composite material not only has preferable anti-flammability and stability, also with green non-pollution the characteristics of, belong to environmentally friendly fire proofing, the preparation method is simple and easy to apply, with preferable application value.
Description
Technical field
The present invention relates to fire proofing technical field, and in particular to a kind of high fire-retardance attapulgite based nano composite material and
Preparation method.
Background technology
It is well known that developing rapidly with high molecular synthetic material, all types of plastic product is also more widely used in respectively
Kind of field, plays more and more important effect in the living environment of people, yet with being rich in carbon and hydrogen in plastic fraction,
Typically there is combustibility very high, it is inflammable under conditions of aerobic and heating, toxic fumes can be produced, endanger environment.Therefore, hinder
Combustion has been a critically important problem for plastics, the development and application of fire retardant has been obtained very big attention.
The burning of polymer is an extremely complex, fierce continuous oxidation process.In the case where external heat source is constantly heated, gather
There is radical chain degradation reaction in the oxygen in compound and air, produce volatile fuel, when reaching uniform temperature and concentration
When, just to burn, burning discharges light and heat is further exacerbated by depolymerization, produces more imflammable gas, makes
Burning is more violent.The mechanism of action of fire retardant is more complicated, and the fire retardant mechanism of different flame retardant is also different, but its
Basic function is oxygen, heat and combustible to be disturbed with physics and chemistry route these three maintain the fundamental of burning.Mainly
By the way that gas phase is fire-retardant, condensed phase is fire-retardant or it is fire-retardant to realize to interrupt the mechanism such as heat exchange.
The fire retardant used in China's polyurethane foam plastics production process can according to chemical composition be divided into organic fire-resisting
Agent and the major class of inorganic combustion inhibitor two.Wherein although inorganic combustion inhibitor drips with thermally-stabilised good, efficient, suppression cigarette, resistance, it is safe to fill,
The features such as substantially pollution-free to environment, but itself and high polymer are far from it in physical aspect and chemical constitution, both associativities
Difference, processing characteristics and the physical property influence on macromolecule matrix material is larger.Phosphoric acid ester material is used organic fire-retardant more,
And majority contains halogen, gradually it is eliminated in the life of people.
Therefore, research and develop it is a kind of both there is preferable flame retardant effect, fire proofing that again can be environmentally safe into
It is the emphasis of current research, it may have preferable application prospect and use value.
The content of the invention
For defect of the prior art, it is an object of the invention to provide a kind of nano combined material of high fire-retardance concave convex rod soil matrix
Material and preparation method, the high fire-retardance attapulgite based nano composite material not only have preferable anti-flammability and stability, also
The characteristics of with green non-pollution, belong to environmentally friendly fire proofing, for people provide guarantee into product, life.Additionally, institute
Preparation method is stated simple and easy to apply, with preferable application value.
The present invention solves technical problem and adopts the following technical scheme that：
The present invention relates to a kind of high fire-retardance attapulgite based nano composite material, including following weight portion raw material：It is modified concavo-convex
60 ~ 80 parts of rod stone clay, 5 ~ 10 parts of Graphene, 10 ~ 15 parts of sodium acid carbonate, 5 ~ 10 parts of sodium alkyl benzene sulfonate, inorganic combustion inhibitor 20 ~
30 parts, 3 ~ 10 parts of dispersant, 30 ~ 50 parts of polyacrylamide, 5 ~ 10 parts of stabilizer, also including appropriate solvent.
Preferably, the Concave-convex clay rod is the Concave-convex clay rod after heat modification.
Preferably, the inorganic combustion inhibitor is in aluminium hydroxide, magnesium hydroxide, anhydrous magnesium carbonate and nano layered silicate
Any one.
Preferably, the stabilizer is lead salt stabilizer.
Preferably, the dispersant is polyethylene glycol or lauryl sodium sulfate.
Preferably, the solvent includes first alcohol and water.
The invention further relates to a kind of method for preparing high fire-retardance attapulgite based nano composite material, comprise the following steps：
（1）Natural attapulgite clay is carried out to be crushed to 100 ~ 200 mesh, is added water, stirring forms mud in suspension, then by ultrasound
After fully dispersed, upper suspension 5 ~ 10min of centrifugal treating in the centrifuge of 3000 turns/min, vacuum filtration after standing are taken；
Filter cake is placed in beaker, methyl alcohol is added, in 10 ~ 20min of ultrasound, vacuum filtration after standing under Ultrasonic Conditions, is dried to obtain
Concave-convex clay rod pretreatment product；
（2）500 DEG C ~ 800 DEG C of Muffle 1 ~ 2h of kiln roasting is placed in after Concave-convex clay rod pretreatment product is dried, after cooling
Particle diameter is ground to for 100 ~ 200 mesh, the Concave-convex clay rod after heat modification is obtained final product；
（3）Polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate are weighed respectively according to proportioning to be added in reactor,
Suitable quantity of water is added, in 70 ~ 80 DEG C of 1 ~ 3h of stirring reaction, modified Concave-convex clay rod, dispersant is added, stirred,
10 ~ 20min of ultrasound in ultrasonic wave is subsequently placed in, mixture one is obtained；
（4）To inorganic combustion inhibitor, stabilizer is added in mixture one, continue 10 ~ 20min of ultrasound, vacuum filtration simultaneously washs filter cake,
Then filter cake is dried, is ground to 50 ~ 100 mesh, obtain final product the fire-retardant attapulgite based nano composite material.
Preferably, the step（1）In the weight that adds water be 3 ~ 8 times of Concave-convex clay rod weight.
Preferably, the step（1）The addition volume of middle methyl alcohol is 50mL with Concave-convex clay rod mass ratio：10~15g.
Compared with prior art, the present invention has following beneficial effect：
（1）High fire-retardance attapulgite based nano composite material of the present invention, with excellent flame retardant effect, due to composite wood
There is substantial amounts of physics and chemical absorbed water in Concave-convex clay rod itself micropore in material, water vapour is produced at high temperature, block
Oxygen, absorbs heat, multi-layer fire-retarded effect is reached, for the excellent flame retardant effect of composite provides first guarantee.
（2）Grapheme material is added with composite of the present invention, because Graphene has unique sheet knot
Structure, is layering to form the physical isolation layer of densification so that the modified composite for preparing of Graphene has preferable
Physical isolation is acted on, for the excellent flame retardant effect of composite provides second guarantee.
（3）Composite of the present invention polyacrylamide and Graphene graft modification in preparation process, greatly increase
The dispersing uniformity of Graphene, then under the coordinative role of dispersant so that attapulgite can more fully with poly- third
Acrylamide modified graphene and inorganic combustion inhibitor are contacted, and then enable that each active principle is more uniformly loaded to concave convex rod
The surface of soil, for the excellent flame retardant effect of composite provides condition.
（4）The characteristics of composite of the present invention has green non-pollution, is suitably applied various occasions, meets ring
The standard of border friendly material, is adapted to popularization and application, with preferable application value.
Specific embodiment
With reference to specific embodiment, the present invention is expanded on further.These embodiments be merely to illustrate the present invention and without
In limitation the scope of the present invention.
Embodiment 1：
A kind of high fire-retardance attapulgite based nano composite material and preparation method of the preferred embodiment of the present invention；
High fire-retardance attapulgite based nano composite material, including following weight portion raw material：70 parts of modified attapulgite clay, stone
8 parts of black alkene, 12 parts of sodium acid carbonate, 7 parts of sodium alkyl benzene sulfonate, 25 parts of inorganic combustion inhibitor, 8 parts of dispersant, 40 parts of polyacrylamide,
8 parts of stabilizer, also including appropriate solvent.
Wherein, Concave-convex clay rod is the Concave-convex clay rod after heat modification, significantly increases the specific surface of attapulgite
Product, makes can there is substantial amounts of physics and chemical absorbed water in its own micropore, and water vapour is produced at high temperature, blocks oxygen,
Heat is absorbed, multi-layer fire-retarded effect is reached.
Inorganic combustion inhibitor is aluminium hydroxide, and stabilizer is lead salt stabilizer, and dispersant is polyethylene glycol, and solvent includes methyl alcohol
And water.
The invention further relates to a kind of method for preparing high fire-retardance attapulgite based nano composite material, comprise the following steps：
（1）Natural attapulgite clay is carried out to be crushed to 200 mesh, 5 times of water of amount of Concave-convex clay rod weight, stirring are added
Formed mud in suspension, then by ultrasound it is fully dispersed after, take upper suspension centrifugal treating 8 in the centrifuge of 3000 turns/min
Min, vacuum filtration after standing；Filter cake is placed in beaker, methyl alcohol is added, in ultrasonic 15 min under Ultrasonic Conditions, after standing
Vacuum filtration, is dried to obtain Concave-convex clay rod pretreatment product, wherein, addition volume and the Concave-convex clay rod quality of methyl alcohol
Than being 50mL：13 g；
（2）700 DEG C of the h of Muffle kiln roasting 1.5 is placed in after Concave-convex clay rod pretreatment product is dried, is ground after cooling
It is 200 mesh to particle diameter, obtains final product the Concave-convex clay rod after heat modification；
（3）Polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate are weighed respectively according to proportioning to be added in reactor,
Suitable quantity of water is added, in 80 DEG C of h of stirring reaction 2, modified Concave-convex clay rod, dispersant is added, stirred, then
Ultrasonic 15 min in ultrasonic wave is placed in, mixture one is obtained；
（4）To inorganic combustion inhibitor, stabilizer is added in mixture one, continue ultrasonic 20 min, vacuum filtration simultaneously washs filter cake, so
Filter cake is dried afterwards, is ground to 100 mesh, obtain final product the fire-retardant attapulgite based nano composite material.
Embodiment 2：
A kind of high fire-retardance attapulgite based nano composite material and preparation method of the preferred embodiment of the present invention；
High fire-retardance attapulgite based nano composite material, including following weight portion raw material：60 parts of modified attapulgite clay, stone
5 parts of black alkene, 10 parts of sodium acid carbonate, 5 parts of sodium alkyl benzene sulfonate, 20 parts of inorganic combustion inhibitor, 3 parts of dispersant, 30 parts of polyacrylamide,
5 parts of stabilizer, also including appropriate solvent.
Wherein, Concave-convex clay rod is the Concave-convex clay rod after heat modification, significantly increases the specific surface of attapulgite
Product, makes can there is substantial amounts of physics and chemical absorbed water in its own micropore, and water vapour is produced at high temperature, blocks oxygen,
Heat is absorbed, multi-layer fire-retarded effect is reached.
Inorganic combustion inhibitor is magnesium hydroxide, and stabilizer is lead salt stabilizer, and dispersant is lauryl sodium sulfate, solvent bag
Include first alcohol and water.
The invention further relates to a kind of method for preparing high fire-retardance attapulgite based nano composite material, comprise the following steps：
（1）Natural attapulgite clay is carried out to be crushed to 100 mesh, 3 times of water of amount of Concave-convex clay rod weight, stirring are added
Formed mud in suspension, then by ultrasound it is fully dispersed after, take upper suspension centrifugal treating 5 in the centrifuge of 3000 turns/min
Min, vacuum filtration after standing；Filter cake is placed in beaker, methyl alcohol is added, in ultrasonic 10 min under Ultrasonic Conditions, after standing
Vacuum filtration, is dried to obtain Concave-convex clay rod pretreatment product, wherein, addition volume and the Concave-convex clay rod quality of methyl alcohol
Than being 50mL：10 g；
（2）500 DEG C of the h of Muffle kiln roasting 2 is placed in after Concave-convex clay rod pretreatment product is dried, is ground to after cooling
Particle diameter is 100 mesh, obtains final product the Concave-convex clay rod after heat modification；
（3）Polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate are weighed respectively according to proportioning to be added in reactor,
Suitable quantity of water is added, in 70 DEG C of stirring reaction 3h, modified Concave-convex clay rod, dispersant is added, stirred, then put
Ultrasonic 20 min, obtains mixture one in ultrasonic wave；
（4）To inorganic combustion inhibitor, stabilizer is added in mixture one, continue ultrasonic 10 min, vacuum filtration simultaneously washs filter cake, so
Filter cake is dried afterwards, is ground to 50 mesh, obtain final product the fire-retardant attapulgite based nano composite material.
Embodiment 3：
A kind of high fire-retardance attapulgite based nano composite material and preparation method of the preferred embodiment of the present invention；
High fire-retardance attapulgite based nano composite material, including following weight portion raw material：80 parts of modified attapulgite clay, stone
10 parts of black alkene, 15 parts of sodium acid carbonate, 10 parts of sodium alkyl benzene sulfonate, 30 parts of inorganic combustion inhibitor, 10 parts of dispersant, polyacrylamide 50
Part, 10 parts of stabilizer, also including appropriate solvent.
Wherein, Concave-convex clay rod is the Concave-convex clay rod after heat modification, significantly increases the specific surface of attapulgite
Product, makes can there is substantial amounts of physics and chemical absorbed water in its own micropore, and water vapour is produced at high temperature, blocks oxygen,
Heat is absorbed, multi-layer fire-retarded effect is reached.
Inorganic combustion inhibitor is nano layered silicate, and stabilizer is lead salt stabilizer, and dispersant is lauryl sodium sulfate,
Solvent includes first alcohol and water.
The invention further relates to a kind of method for preparing high fire-retardance attapulgite based nano composite material, comprise the following steps：
（1）Natural attapulgite clay is carried out to be crushed to 100 mesh, 8 times of water of amount of Concave-convex clay rod weight, stirring are added
Formed mud in suspension, then by ultrasound it is fully dispersed after, take upper suspension centrifugal treating in the centrifuge of 3000 turns/min
10 min, vacuum filtration after standing；Filter cake is placed in beaker, methyl alcohol is added, in ultrasonic 20 min under Ultrasonic Conditions, stood
Vacuum filtration, is dried to obtain Concave-convex clay rod pretreatment product afterwards, wherein, addition volume and the Concave-convex clay rod matter of methyl alcohol
Amount is than being 50mL：15 g；
（2）800 DEG C of the h of Muffle kiln roasting 1 is placed in after Concave-convex clay rod pretreatment product is dried, is ground to after cooling
Particle diameter is 100 mesh, obtains final product the Concave-convex clay rod after heat modification；
（3）Polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate are weighed respectively according to proportioning to be added in reactor,
Suitable quantity of water is added, in 80 DEG C of h of stirring reaction 1, modified Concave-convex clay rod, dispersant is added, stirred, then
Ultrasonic 20 min in ultrasonic wave is placed in, mixture one is obtained；
（4）To inorganic combustion inhibitor, stabilizer is added in mixture one, continue ultrasonic 20 min, vacuum filtration simultaneously washs filter cake, so
Filter cake is dried afterwards, is ground to 100 mesh, obtain final product the fire-retardant attapulgite based nano composite material.
In sum, the high fire-retardance attapulgite based nano composite material prepared by the present invention, with excellent fire-retardant effect
Really, due to there is substantial amounts of physics and chemical absorbed water in Concave-convex clay rod itself micropore in composite, produce at high temperature
Producing water vapor, blocks oxygen, absorbs heat and reaches multi-layer fire-retarded effect；Polyacrylamide is grafted with Graphene in preparation process
It is modified, the dispersing uniformity of Graphene is considerably increased, then under the coordinative role of dispersant so that attapulgite can be more
Sufficiently contacted with polyacrylamide modified graphene and inorganic combustion inhibitor, and then enable that each component is more uniformly loaded
To the surface of attapulgite, for the excellent flame retardant effect of composite provides condition.Additionally, composite of the present invention
The characteristics of with green non-pollution, various occasions are suitably applied, meet the standard of environmentally friendly material, be adapted to promote and answer
With with preferable application value.
Specific embodiment of the invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can within the scope of the claims make various deformations or amendments, this not shadow
Sound substance of the invention.
Claims (9)
1. a kind of high fire-retardance attapulgite based nano composite material, it is characterised in that：Raw material including following weight portion：It is modified recessed
Convex 60 ~ 80 parts of rod stone clay, 5 ~ 10 parts of Graphene, 10 ~ 15 parts of sodium acid carbonate, 5 ~ 10 parts of sodium alkyl benzene sulfonate, inorganic combustion inhibitor
20 ~ 30 parts, 3 ~ 10 parts of dispersant, 30 ~ 50 parts of polyacrylamide, 5 ~ 10 parts of stabilizer, also including appropriate solvent.
2. high fire-retardance attapulgite based nano composite material according to claim 1, it is characterised in that：The attapulgite
Clay is the Concave-convex clay rod after heat modification.
3. high fire-retardance attapulgite based nano composite material according to claim 1, it is characterised in that：It is described inorganic fire-retarded
Agent is any one in aluminium hydroxide, magnesium hydroxide, anhydrous magnesium carbonate and nano layered silicate.
4. high fire-retardance attapulgite based nano composite material according to claim 1, it is characterised in that：The stabilizer is
Lead salt stabilizer.
5. high fire-retardance attapulgite based nano composite material according to claim 1, it is characterised in that：The dispersant is
Polyethylene glycol or lauryl sodium sulfate.
6. high fire-retardance attapulgite based nano composite material according to claim 1, it is characterised in that：The solvent includes
First alcohol and water.
7. the method that one kind prepares the high fire-retardance attapulgite based nano composite material as described in any one of claim 1 ~ 6, its
It is characterised by：Comprise the following steps：
（1）Natural attapulgite clay is carried out to be crushed to 100 ~ 200 mesh, is added water, stirring forms mud in suspension, then by ultrasound
After fully dispersed, upper suspension 5 ~ 10min of centrifugal treating in the centrifuge of 3000 turns/min, vacuum filtration after standing are taken；
Filter cake is placed in beaker, methyl alcohol is added, in 10 ~ 20min of ultrasound, vacuum filtration after standing under Ultrasonic Conditions, is dried to obtain
Concave-convex clay rod pretreatment product；
（2）500 DEG C ~ 800 DEG C of Muffle 1 ~ 2h of kiln roasting is placed in after Concave-convex clay rod pretreatment product is dried, after cooling
Particle diameter is ground to for 100 ~ 200 mesh, the Concave-convex clay rod after heat modification is obtained final product；
（3）Polyacrylamide, Graphene, sodium acid carbonate, sodium alkyl benzene sulfonate are weighed respectively according to proportioning to be added in reactor,
Suitable quantity of water is added, in 70 ~ 80 DEG C of 1 ~ 3h of stirring reaction, modified Concave-convex clay rod, dispersant is added, stirred,
10 ~ 20min of ultrasound in ultrasonic wave is subsequently placed in, mixture one is obtained；
（4）To inorganic combustion inhibitor, stabilizer is added in mixture one, continue 10 ~ 20min of ultrasound, vacuum filtration simultaneously washs filter cake,
Then filter cake is dried, is ground to 50 ~ 100 mesh, obtain final product the fire-retardant attapulgite based nano composite material.
8. the preparation method of high fire-retardance attapulgite based nano composite material according to claim 7, it is characterised in that：Institute
State step（1）In the weight that adds water be 3 ~ 8 times of Concave-convex clay rod weight.
9. the preparation method of high fire-retardance attapulgite based nano composite material according to claim 7, it is characterised in that：Institute
State step（1）The addition volume of middle methyl alcohol is 50mL with Concave-convex clay rod mass ratio：10~15g.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107286657A (en) * | 2017-08-08 | 2017-10-24 | 合肥安力电力工程有限公司 | A kind of noise abatement, anticorrosive high and low voltage electric distribution device shell and preparation method |
| CN108867081A (en) * | 2018-06-27 | 2018-11-23 | 合肥远科服装设计有限公司 | A kind of preparation method of water proof fire retardant luggage cloth |
| CN110372910A (en) * | 2019-07-19 | 2019-10-25 | 合肥工业大学 | A kind of concave convex rod base composite flame-retardant agent and preparation method thereof and application method |
| CN111747762A (en) * | 2020-07-02 | 2020-10-09 | 山西高科耐火材料股份有限公司 | Nano-functional siliceous unshaped fireproof self-flowing ramming mass and preparation method thereof |
| CN113185754A (en) * | 2021-05-07 | 2021-07-30 | 西北师范大学 | Attapulgite/antimony trioxide hybrid material, preparation method thereof and application thereof in producing flame-retardant polymer composite material |
| CN113943486A (en) * | 2021-10-26 | 2022-01-18 | 杭州博源电力设备有限公司 | Cable plugging material and preparation method thereof |
| CN116120143A (en) * | 2023-04-14 | 2023-05-16 | 潍坊弘润石化科技有限公司 | Meta-xylene adsorbent and production method of high-purity meta-xylene |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107286657A (en) * | 2017-08-08 | 2017-10-24 | 合肥安力电力工程有限公司 | A kind of noise abatement, anticorrosive high and low voltage electric distribution device shell and preparation method |
| CN108867081A (en) * | 2018-06-27 | 2018-11-23 | 合肥远科服装设计有限公司 | A kind of preparation method of water proof fire retardant luggage cloth |
| CN110372910A (en) * | 2019-07-19 | 2019-10-25 | 合肥工业大学 | A kind of concave convex rod base composite flame-retardant agent and preparation method thereof and application method |
| CN110372910B (en) * | 2019-07-19 | 2021-12-21 | 合肥工业大学 | Attapulgite-based composite flame retardant and preparation method and use method thereof |
| CN111747762A (en) * | 2020-07-02 | 2020-10-09 | 山西高科耐火材料股份有限公司 | Nano-functional siliceous unshaped fireproof self-flowing ramming mass and preparation method thereof |
| CN111747762B (en) * | 2020-07-02 | 2022-05-24 | 山西高科耐火材料股份有限公司 | Nano-functional siliceous unshaped fireproof self-flowing ramming mass and preparation method thereof |
| CN113185754A (en) * | 2021-05-07 | 2021-07-30 | 西北师范大学 | Attapulgite/antimony trioxide hybrid material, preparation method thereof and application thereof in producing flame-retardant polymer composite material |
| CN113943486A (en) * | 2021-10-26 | 2022-01-18 | 杭州博源电力设备有限公司 | Cable plugging material and preparation method thereof |
| CN116120143A (en) * | 2023-04-14 | 2023-05-16 | 潍坊弘润石化科技有限公司 | Meta-xylene adsorbent and production method of high-purity meta-xylene |
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