CN109608780A - A kind of flame-retardant expanded insulating board for building and preparation method thereof - Google Patents
A kind of flame-retardant expanded insulating board for building and preparation method thereof Download PDFInfo
- Publication number
- CN109608780A CN109608780A CN201811651483.6A CN201811651483A CN109608780A CN 109608780 A CN109608780 A CN 109608780A CN 201811651483 A CN201811651483 A CN 201811651483A CN 109608780 A CN109608780 A CN 109608780A
- Authority
- CN
- China
- Prior art keywords
- added
- flame
- taken
- insulating board
- building
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- C08J2325/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Derivatives of such polymers
- C08J2325/02—Homopolymers or copolymers of hydrocarbons
- C08J2325/04—Homopolymers or copolymers of styrene
- C08J2325/06—Polystyrene
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/327—Aluminium phosphate
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/02—Elements
- C08K3/04—Carbon
- C08K3/041—Carbon nanotubes
-
- 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
- C08K9/00—Use of pretreated ingredients
- C08K9/08—Ingredients agglomerated by treatment with a binding agent
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention discloses a kind of flame-retardant expanded insulating board for building, it is composed of the following raw materials by weight: aluminium dihydrogen phosphate 5-7, ammonium persulfate 1-2, acrylamide 30-40, ac foaming agent 10-16, modified carbon nano-tube 10-13, glyceryl tristearate 1-2, phosphorus trichloride 4-7, ethylene glycol 3-5, polystyrene 130-150, p-methyl benzenesulfonic acid 0.01-0.02, the present invention can effectively improve the mechanical strength of finished-product material, and carbon nanotube passes through polyacrylamide intercalation, stable expansion carbon-coating can be formed by meeting fire burning, play good flameproof effect, and the phosphatization filler being added can play with expansion carbon-coating and cooperate with fire protecting performance well, enhance the flame retardant effect of finished product.
Description
Technical field
The invention belongs to Material Fields, and in particular to a kind of flame-retardant expanded insulating board for building and preparation method thereof.
Background technique
Polystyrene foamed material is that the auxiliary materials such as foaming agent, heated hair is added using polystyrene resin as base-material
Light material made of bubble, it has, and light, thermal coefficient is small, water absorption rate is low, water-fast, ageing-resistant, low temperature resistant, easy processing, valence
The advantages that honest and clean of fine quality.But polystyrene foam heat insulation material is while bringing huge facilitate to people's lives, it is inflammable
Property also to it application bring certain limitation.Polystyrene foam itself is combustible material, under fire and hot conditions
It easily decomposes burning, and is generated with a large amount of poison gases；
Therefore, it is badly in need of studying a kind of new polystyrene foam heat insulation material, to improve fire safety.
Summary of the invention
The object of the present invention is to provide a kind of flame-retardant expanded insulating board for building and preparation method thereof.
To achieve the above object, the invention adopts the following technical scheme:
A kind of flame-retardant expanded insulating board for building, it is composed of the following raw materials by weight:
Aluminium dihydrogen phosphate 5-7, ammonium persulfate 1-2, acrylamide 30-40, ac foaming agent 10-16, modified carbon nano-tube 10-13,
Glyceryl tristearate 1-2, phosphorus trichloride 4-7, ethylene glycol 3-5, polystyrene 130-150, p-methyl benzenesulfonic acid 0.01-
0.02。
The modified carbon nano-tube is made of the raw material of following weight parts:
Carbon nanotube 30-40, propylene oxide 10-13, chloroform 60-70, ricinoleic acid calcium 2-3.
The preparation method of the modified carbon nano-tube, comprising the following steps:
(1) propylene oxide, the mixing of ricinoleic acid calcium are taken, is added in chloroform, stirs evenly, obtain chloroformic solution；
(2) carbon nanotube is taken, is added in the sulfuric acid solution that concentration is 96-98%, impregnates 2-3 hours, filtering is added to above-mentioned
In chloroformic solution, increasing temperature is 60-65 DEG C, and insulated and stirred 100-140 minutes, discharging was cooling to get the modified carbon nano tube
Pipe.
A kind of preparation method of flame-retardant expanded insulating board for building, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 40-50 times of its weight, stirs evenly；
(2) phosphorus trichloride, ethylene glycol mixing are taken, aluminium dihydrogen phosphate is added, increasing temperature is 90-95 DEG C, is added to methylbenzene sulphur
Acid insulated and stirred 1-2 hours, obtains phosphatization filler；
(3) acrylamide is taken, mixes, is added in the deionized water of 30-35 times of mixture weight with above-mentioned phosphatization filler, is stirred
Uniformly, modified carbon nano-tube is added, increasing temperature is 140-150 DEG C, and insulated and stirred 100-120 minutes, discharging cooling was sent to
In reaction kettle, it is passed through nitrogen, above-mentioned ammonium persulfate aqueous solution is added, insulated and stirred 3-5 hours, discharges, filters, by filter cake water
It washes, it is dry, obtain polymer modification carbon nanotube；
(4) above-mentioned polymer modification carbon nanotube is taken, mixes, stirs evenly with glyceryl tristearate, polystyrene, be sent to
In extruder, melting extrusion is cooling, obtains modified polystyrene；
(5) above-mentioned modified polystyrene is taken, mixes, stirs evenly with ac foaming agent, be sent in foaming machine, in 0.3-
Steam heats 1-2 hours at 0.4Mpa, 140-150 DEG C, discharging, and room temperature is cooling to get the flame-retardant expanded insulating board for building.
Advantages of the present invention:
The present invention first activates carbon nanotube, using epoxy pronane modification, obtains modified carbon nano-tube；Then with tri-chlorination
Phosphorus, ethylene glycol are raw material, and esterification is blended, aluminium dihydrogen phosphate is added in esterification process, the phosphatization filler and acryloyl that will be obtained
Amine monomers are blended, then are blended with epoxy-modified carbon nanotube, promote epoxy cross-linking under high temperature, then gather under initiator effect
It closes, obtains polymer modification carbon nanotube, the compatibility of modified carbon nano-tube of the invention and polystyrene is good, can effectively mention
The mechanical strength of high finished-product material, and carbon nanotube passes through polyacrylamide intercalation, stable expansion can be formed by meeting fire burning
Carbon-coating plays good flameproof effect, and the phosphatization filler being added can play with expansion carbon-coating and cooperate with fire protecting performance well,
Enhance the flame retardant effect of finished product.
Specific embodiment
Embodiment 1
A kind of flame-retardant expanded insulating board for building, it is composed of the following raw materials by weight:
Aluminium dihydrogen phosphate 5, ammonium persulfate 1, acrylamide 30, ac foaming agent 10, modified carbon nano-tube 10, glyceryl tristearate
1, phosphorus trichloride 4, ethylene glycol 3, polystyrene 130, p-methyl benzenesulfonic acid 0.01.
The modified carbon nano-tube is made of the raw material of following weight parts:
Carbon nanotube 30, propylene oxide 10, chloroform 60, ricinoleic acid calcium 2.
The preparation method of the modified carbon nano-tube, comprising the following steps:
(1) propylene oxide, the mixing of ricinoleic acid calcium are taken, is added in chloroform, stirs evenly, obtain chloroformic solution；
(2) carbon nanotube is taken, is added in the sulfuric acid solution that concentration is 96%, impregnates 2 hours, it is molten to be added to above-mentioned chloroform for filtering
In liquid, increasing temperature is 60 DEG C, and insulated and stirred 100 minutes, discharging was cooling to get the modified carbon nano-tube.
A kind of preparation method of flame-retardant expanded insulating board for building, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 40-50 times of its weight, stirs evenly；
(2) phosphorus trichloride, ethylene glycol mixing are taken, aluminium dihydrogen phosphate is added, increasing temperature is 90 DEG C, p-methyl benzenesulfonic acid is added,
Insulated and stirred 1 hour, obtain phosphatization filler；
(3) acrylamide is taken, is mixed with above-mentioned phosphatization filler, is added in 30 times of mixture weight of deionized water, stirring is equal
It is even, modified carbon nano-tube is added, increasing temperature is 140 DEG C, and insulated and stirred 100 minutes, discharging cooling was sent in reaction kettle,
It is passed through nitrogen, above-mentioned ammonium persulfate aqueous solution is added, insulated and stirred 3 hours, discharges, filters, filter cake is washed, it is dry, it obtains poly-
Polymer modified carbon nanotube；
(4) above-mentioned polymer modification carbon nanotube is taken, mixes, stirs evenly with glyceryl tristearate, polystyrene, be sent to
In extruder, melting extrusion is cooling, obtains modified polystyrene；
(5) above-mentioned modified polystyrene is taken, mixes, stirs evenly with ac foaming agent, be sent in foaming machine, in 0.3Mpa, 140
Steam heats 1 hour at DEG C, discharging, and room temperature is cooling to get the flame-retardant expanded insulating board for building.
Embodiment 2
A kind of flame-retardant expanded insulating board for building, it is composed of the following raw materials by weight:
Aluminium dihydrogen phosphate 7, ammonium persulfate 2, acrylamide 40, ac foaming agent 16, modified carbon nano-tube 13, glyceryl tristearate
2, phosphorus trichloride 7, ethylene glycol 5, polystyrene 150, p-methyl benzenesulfonic acid 0.02.
The modified carbon nano-tube is made of the raw material of following weight parts:
Carbon nanotube 40, propylene oxide 13, chloroform 70, ricinoleic acid calcium 3.
The preparation method of the modified carbon nano-tube, comprising the following steps:
(1) propylene oxide, the mixing of ricinoleic acid calcium are taken, is added in chloroform, stirs evenly, obtain chloroformic solution；
(2) carbon nanotube is taken, is added in the sulfuric acid solution that concentration is 98%, impregnates 3 hours, it is molten to be added to above-mentioned chloroform for filtering
In liquid, increasing temperature is 65 DEG C, and insulated and stirred 140 minutes, discharging was cooling to get the modified carbon nano-tube.
A kind of preparation method of flame-retardant expanded insulating board for building, comprising the following steps:
(1) ammonium persulfate is taken, is added in the deionized water of 40 times of its weight, stirs evenly；
(2) phosphorus trichloride, ethylene glycol mixing are taken, aluminium dihydrogen phosphate is added, increasing temperature is 95 DEG C, p-methyl benzenesulfonic acid is added,
Insulated and stirred 2 hours, obtain phosphatization filler；
(3) acrylamide is taken, is mixed with above-mentioned phosphatization filler, is added in 35 times of mixture weight of deionized water, stirring is equal
It is even, modified carbon nano-tube is added, increasing temperature is 150 DEG C, and insulated and stirred 120 minutes, discharging cooling was sent in reaction kettle,
It is passed through nitrogen, above-mentioned ammonium persulfate aqueous solution is added, insulated and stirred 5 hours, discharges, filters, filter cake is washed, it is dry, it obtains poly-
Polymer modified carbon nanotube；
(4) above-mentioned polymer modification carbon nanotube is taken, mixes, stirs evenly with glyceryl tristearate, polystyrene, be sent to
In extruder, melting extrusion is cooling, obtains modified polystyrene；
(5) above-mentioned modified polystyrene is taken, mixes, stirs evenly with ac foaming agent, be sent in foaming machine, in 0.4Mpa, 150
Steam heats 2 hours at DEG C, discharging, and room temperature is cooling to get the flame-retardant expanded insulating board for building.
Performance test:
The flame-retardant expanded insulating board for building of embodiment 1:
Oxygen index (OI) 32；
Tensile strength 247kpa；
Thermal coefficient 0.027w/m.k.
The flame-retardant expanded insulating board for building of embodiment 2:
Oxygen index (OI) 33；
Tensile strength 251kpa；
Thermal coefficient 0.029w/m.k.
Claims (4)
1. a kind of flame-retardant expanded insulating board for building, which is characterized in that it is composed of the following raw materials by weight:
Aluminium dihydrogen phosphate 5-7, ammonium persulfate 1-2, acrylamide 30-40, ac foaming agent 10-16, modified carbon nano-tube 10-13,
Glyceryl tristearate 1-2, phosphorus trichloride 4-7, ethylene glycol 3-5, polystyrene 130-150, p-methyl benzenesulfonic acid 0.01-
0.02。
2. a kind of flame-retardant expanded insulating board for building according to claim 1, which is characterized in that the modified carbon nano-tube is
It is made of the raw material of following weight parts:
Carbon nanotube 30-40, propylene oxide 10-13, chloroform 60-70, ricinoleic acid calcium 2-3.
3. a kind of flame-retardant expanded insulating board for building according to claim 2, which is characterized in that the modified carbon nano-tube
Preparation method, comprising the following steps:
(1) propylene oxide, the mixing of ricinoleic acid calcium are taken, is added in chloroform, stirs evenly, obtain chloroformic solution；
(2) carbon nanotube is taken, is added in the sulfuric acid solution that concentration is 96-98%, impregnates 2-3 hours, filtering is added to above-mentioned
In chloroformic solution, increasing temperature is 60-65 DEG C, and insulated and stirred 100-140 minutes, discharging was cooling to get the modified carbon nano tube
Pipe.
4. a kind of preparation method of flame-retardant expanded insulating board for building as described in claim 1, which is characterized in that including following step
It is rapid:
(1) ammonium persulfate is taken, is added in the deionized water of 40-50 times of its weight, stirs evenly；
(2) phosphorus trichloride, ethylene glycol mixing are taken, aluminium dihydrogen phosphate is added, increasing temperature is 90-95 DEG C, is added to methylbenzene sulphur
Acid insulated and stirred 1-2 hours, obtains phosphatization filler；
(3) acrylamide is taken, mixes, is added in the deionized water of 30-35 times of mixture weight with above-mentioned phosphatization filler, is stirred
Uniformly, modified carbon nano-tube is added, increasing temperature is 140-150 DEG C, and insulated and stirred 100-120 minutes, discharging cooling was sent to
In reaction kettle, it is passed through nitrogen, above-mentioned ammonium persulfate aqueous solution is added, insulated and stirred 3-5 hours, discharges, filters, by filter cake water
It washes, it is dry, obtain polymer modification carbon nanotube；
(4) above-mentioned polymer modification carbon nanotube is taken, mixes, stirs evenly with glyceryl tristearate, polystyrene, be sent to
In extruder, melting extrusion is cooling, obtains modified polystyrene；
(5) above-mentioned modified polystyrene is taken, mixes, stirs evenly with ac foaming agent, be sent in foaming machine, in 0.3-
Steam heats 1-2 hours at 0.4Mpa, 140-150 DEG C, discharging, and room temperature is cooling to get the flame-retardant expanded insulating board for building.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651483.6A CN109608780A (en) | 2018-12-31 | 2018-12-31 | A kind of flame-retardant expanded insulating board for building and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811651483.6A CN109608780A (en) | 2018-12-31 | 2018-12-31 | A kind of flame-retardant expanded insulating board for building and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109608780A true CN109608780A (en) | 2019-04-12 |
Family
ID=66015527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811651483.6A Pending CN109608780A (en) | 2018-12-31 | 2018-12-31 | A kind of flame-retardant expanded insulating board for building and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109608780A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110039089A1 (en) * | 2005-04-27 | 2011-02-17 | Toyota Jidosha Kabushiki Kaisha | Polymer-based cellular structure comprising carbon nanotubes, method for its production and uses thereof |
| CN102286234A (en) * | 2011-05-09 | 2011-12-21 | 陕西科技大学 | Preparation method of modified acrylic resin leather coating material of carbon nano tubes (CNTs) in situ |
| CN102702634A (en) * | 2012-01-19 | 2012-10-03 | 五行材料科技（江苏）有限公司 | Composition for processing polystyrene porous material, polystyrene porous material and preparation method thereof |
| CN107586452A (en) * | 2017-09-13 | 2018-01-16 | 苏州聚慧邦新材料科技有限公司 | A kind of phosphatization fiber intercalation modifying nylon material and preparation method thereof |
| CN107629344A (en) * | 2017-09-14 | 2018-01-26 | 苏州聚慧邦新材料科技有限公司 | One kind building foaming thermal-insulating and preparation method thereof |
| CN108485231A (en) * | 2018-05-04 | 2018-09-04 | 芜湖天科生物科技有限公司 | A kind of epoxidation polyphenylene oxide conductive film and preparation method thereof |
-
2018
- 2018-12-31 CN CN201811651483.6A patent/CN109608780A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110039089A1 (en) * | 2005-04-27 | 2011-02-17 | Toyota Jidosha Kabushiki Kaisha | Polymer-based cellular structure comprising carbon nanotubes, method for its production and uses thereof |
| CN102286234A (en) * | 2011-05-09 | 2011-12-21 | 陕西科技大学 | Preparation method of modified acrylic resin leather coating material of carbon nano tubes (CNTs) in situ |
| CN102702634A (en) * | 2012-01-19 | 2012-10-03 | 五行材料科技（江苏）有限公司 | Composition for processing polystyrene porous material, polystyrene porous material and preparation method thereof |
| CN107586452A (en) * | 2017-09-13 | 2018-01-16 | 苏州聚慧邦新材料科技有限公司 | A kind of phosphatization fiber intercalation modifying nylon material and preparation method thereof |
| CN107629344A (en) * | 2017-09-14 | 2018-01-26 | 苏州聚慧邦新材料科技有限公司 | One kind building foaming thermal-insulating and preparation method thereof |
| CN108485231A (en) * | 2018-05-04 | 2018-09-04 | 芜湖天科生物科技有限公司 | A kind of epoxidation polyphenylene oxide conductive film and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 安家驹 等: "《实用精细化工辞典》", 30 September 2000, 中国轻工业出版社 * |
| 方道斌 等: "《丙烯酰胺聚合物》", 30 April 2006, 化学工业出版社 材料科学与工程出版中心 * |
| 葛东彪 等: "多壁碳纳米管的表面氧化及其与蓖麻油接枝反应的研究", 《2005年全国高分子学术论文报告会》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108659228B (en) | Modified lignin flame retardant and preparation method thereof | |
| CN107987320B (en) | A kind of aza synergistic expanding fire retardant of phosphorus and preparation method thereof | |
| CN104311876A (en) | Polymerization type phosphorus-containing flame retardant as well as preparation method and application thereof as epoxy resin flame retardant | |
| CN106947008A (en) | A kind of ion reinforced type fire proof construction insulation material and preparation method thereof | |
| CN110628084A (en) | Modified graphite flame retardant, full-water-blown polyurethane foam prepared from flame retardant and preparation method of full-water-blown polyurethane foam | |
| CN106905609A (en) | The halogen-free flame-retardant polypropylene composition of the expanding fire retardant of system containing triazine and its preparation | |
| CN107304255B (en) | Composite flame-retardant agent, flame-retardant pitch and preparation method thereof | |
| CN111171322A (en) | Preparation method of carbon nano tube amidated grafted polysilsesquioxane flame retardant | |
| CN106146891A (en) | A kind of expansion type flame retardant and the application in polyurethane foam thereof | |
| CN107556637A (en) | A kind of ester modified fire proofing material of silicic acid and preparation method thereof | |
| CN109608780A (en) | A kind of flame-retardant expanded insulating board for building and preparation method thereof | |
| CN109438852A (en) | A kind of intumescent boron-nitrogen-phosphorus compound flame retardant and preparation method thereof | |
| CN112300564B (en) | Heat-resistant flame-retardant plastic and preparation method thereof | |
| CN109180872A (en) | A kind of household electrical appliances special-purpose anti-flaming graphene composite plastics material and preparation method | |
| CN106633187A (en) | Safe and environment-friendly inorganic aluminum hypophosphite flame retardant and application thereof in PBT (polybutylene terephthalate) | |
| CN106589596A (en) | Flame-retardant PP (propene polymer) foaming plate and preparation method thereof | |
| CN116178661A (en) | Phosphorus-containing intrinsic flame-retardant resin and preparation method thereof | |
| CN108084586A (en) | A kind of ion liquid modified plastic fireproof plate and preparation method thereof | |
| CN104829796A (en) | Flame retardant for plastics and preparation method thereof | |
| CN108864588A (en) | A kind of insulated fire plate and preparation method thereof | |
| CN106633753A (en) | Flame-retarding polycarbonate plastics and preparation method thereof | |
| CN112662039A (en) | Flame-retardant EVA with excellent mechanical property and preparation method thereof | |
| CN112011262A (en) | High-flame-retardancy polycarbonate modified polyurethane coating and preparation method thereof | |
| CN113861510B (en) | Phosphorus-nitrogen-sulfur-containing flame retardant and preparation method and application method thereof | |
| CN108299683A (en) | A kind of phosphatization ester intumescent nylon material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |
|
| RJ01 | Rejection of invention patent application after publication |