CN105968415A - Preparation method of high-phosphorus-content cladded type red phosphorus - Google Patents
Preparation method of high-phosphorus-content cladded type red phosphorus Download PDFInfo
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- CN105968415A CN105968415A CN201610334953.0A CN201610334953A CN105968415A CN 105968415 A CN105968415 A CN 105968415A CN 201610334953 A CN201610334953 A CN 201610334953A CN 105968415 A CN105968415 A CN 105968415A
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- red phosphorus
- phosphorus
- auxiliary agent
- preparation
- water
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 238000002360 preparation method Methods 0.000 title claims abstract description 17
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 3
- 239000007864 aqueous solution Substances 0.000 claims description 27
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims description 24
- 239000011574 phosphorus Substances 0.000 claims description 23
- 229910052698 phosphorus Inorganic materials 0.000 claims description 23
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 14
- VEORPZCZECFIRK-UHFFFAOYSA-N 3,3',5,5'-tetrabromobisphenol A Chemical compound C=1C(Br)=C(O)C(Br)=CC=1C(C)(C)C1=CC(Br)=C(O)C(Br)=C1 VEORPZCZECFIRK-UHFFFAOYSA-N 0.000 claims description 12
- 239000008346 aqueous phase Substances 0.000 claims description 10
- 235000010265 sodium sulphite Nutrition 0.000 claims description 7
- 239000000243 solution Substances 0.000 claims description 7
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- NBIIXXVUZAFLBC-UHFFFAOYSA-L Phosphate ion(2-) Chemical compound OP([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-L 0.000 claims description 6
- QOHMWDJIBGVPIF-UHFFFAOYSA-N n',n'-diethylpropane-1,3-diamine Chemical compound CCN(CC)CCCN QOHMWDJIBGVPIF-UHFFFAOYSA-N 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 5
- 238000003756 stirring Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000000376 reactant Substances 0.000 claims description 4
- 238000009991 scouring Methods 0.000 claims description 2
- 238000005406 washing Methods 0.000 abstract description 6
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 239000006185 dispersion Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 238000000227 grinding Methods 0.000 abstract description 2
- WSFSSNUMVMOOMR-UHFFFAOYSA-N formaldehyde Substances O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 7
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000005253 cladding Methods 0.000 description 4
- 239000003063 flame retardant Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- -1 and after cladding Substances 0.000 description 1
- 230000003064 anti-oxidating effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004815 dispersion polymer Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- 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
- C08K9/10—Encapsulated ingredients
-
- 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
-
- 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
- C08K2003/026—Phosphorus
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a preparation method of high-phosphorus-content cladded type red phosphorus. The preparation method comprises the following steps: putting red phosphorus and water into a ball mill and grinding; transferring a ground red phosphorus water solution to a dispersion kettle; adding an auxiliary agent I and adjusting the pH; after removing a water phase, adding water and carrying out water washing; adding an auxiliary agent II into the dispersion kettle and adjusting the pH value; adding a mixed auxiliary agent III and keeping the temperature at 85-95 DEG C; reacting for 2h-3h to obtain a red phosphorus reaction solution; after naturally cooling the red phosphorus reaction solution for 7h-9h, transferring the red phosphorus reaction solution into a centrifuge and centrifuging; and drying a centrifuged product to finally prepare a high-phosphorus-content cladded type red phosphorus product. The product has the advantages of high ignition point, high red phosphorus content, good dispersion effect and the like.
Description
Technical field
The present invention relates to the preparation method of a kind of cladded type red phosphorus, be specifically related to the preparation method of a kind of high phosphorus content cladded type red phosphorus.
Background technology
Red phosphorus has been widely used in the polymeric material such as plastics, rubber as a kind of excellent fire retardant, but red phosphorus exists many drawbacks in actual applications.Such as, in process of production, as the red phosphorus of raw material remains a small amount of yellow phosphorus so that its burning-point is relatively low, inflammable；And yellow phosphorus easy moisture absorption oxidation generates acid and etching apparatus, produce hypertoxicity gas hydrogen phosphide simultaneously, thus shorten service life of equipment, threaten operator's personal safety, pollute environment etc.；It addition, red phosphorus is as inorganic matter, it is difficult in organic polymer dispersion, therefore, red phosphorus surface need to be carried out organically-modified process, reduce red phosphorus storage difficulty simultaneously, be greatly saved production cost.
Domestic relevant report has: CN101684186A discloses slaines such as first passing through magnesium, aluminum, zinc and reacts at red phosphorus surface formation metal hydroxides clad with water, organic coating is carried out again by resin bed, but owing to the cladding number of plies is more, thus causing available phosphorus content relatively low, fire resistance is had a greatly reduced quality；201210282927.X discloses and forms melamino-formaldehyde glue by tripolycyanamide in the basic conditions with formaldehyde and be coated with red phosphorus, but poor compatibility, difficult dispersion occurs and be easily generated the problems such as low molecule formaldehyde.Tetrabromobisphenol A bisglycidyl ether itself can be applied in the field such as plastics, rubber as single fire retardant.
Accordingly, it is desirable to provide a kind of new technical scheme solves the problems referred to above.
Summary of the invention
The technical problem to be solved in the present invention is to provide the preparation method of a kind of high phosphorus content cladded type red phosphorus, the method the red phosphorus prepared has the advantages such as ignition point is high, red phosphorus content is high, dispersion effect is good.
For solving above-mentioned technical problem, the present invention provides the preparation method of a kind of high phosphorus content cladded type red phosphorus, comprises the following steps:
(1) red phosphorus and water being positioned in ball mill, be ground, wherein the mass ratio of red phosphorus and water is 1:2.5 ~ 3.5；
(2) ground red phosphorus aqueous solution is transferred in Scattered Kettle, put into auxiliary agent I, regulation pH value to 12 ~ 14, be warming up to 85 ~ 95 DEG C, stand after stirring 20 ~ 24h, after removing aqueous phase, add water to wash, aqueous phase is removed, and is repeated 2 times, and wherein red phosphorus is 1:1 ~ 1.5 with the mass ratio of water scouring water；
(3) being added to Scattered Kettle by auxiliary agent II, regulation pH value, to 7 ~ 8, adds the most mixed auxiliary agent III, maintains the temperature at 85 ~ 95 DEG C, reacts 2 ~ 3h, and red phosphorus is 1:0.02 ~ 0.03 with the mass ratio of auxiliary agent III, obtains red phosphorus reactant liquor；
(4) by after red phosphorus reactant liquor natural cooling 7 ~ 9h, being transferred to centrifuge and be centrifuged, centrifugal rear product is dried, final prepared high phosphorus content cladded type red phosphorus product.
The mixed solution that the auxiliary agent I added in step (2) is the NaOH aqueous solution that mass concentration is 48% and the sodium sulfite aqueous solution that mass concentration is 30%, both mass ratioes are 1:0.3 ~ 0.4.
The auxiliary agent II added in step (3) is 30% biphosphate sodium water solution for mass concentration.
The mixed solution that auxiliary agent III is tetrabromobisphenol A bisglycidyl ether and diethylaminopropylamine added in step (3), both mass ratioes are 1:0.3 ~ 0.5.
Centrifuge in step (4), for hanging bag type centrifugal machine.
Drying machine in step (5), for vacuum drum drier.
The used production technology of the present invention, has an advantage in that: is first removed by the yellow phosphorus remained in red phosphorus, then is coated with as main body clad using fire retardant tetrabromobisphenol A bisglycidyl ether.The method can improve the burning-point of goods, extension device service life, saves cost of equipment maintenance, it is ensured that fire resistance, greatly reduces energy consumption, decrease production cost.
Detailed description of the invention
In order to deepen the understanding of the present invention, below the invention will be further described, this embodiment be only used for explain the present invention, be not intended that the restriction to protection scope of the present invention.
Embodiment 1
The preparation method of a kind of high phosphorus content cladded type red phosphorus, comprises the following steps:
Step (1), is positioned over 144.8kg red phosphorus and 362.9kg aqueous solution in ball mill, is ground；
Step (2), ground red phosphorus aqueous solution is transferred in Scattered Kettle, put into 15.3kg mass concentration be 48% NaOH aqueous solution and 4.6kg mass concentration be the sodium sulfite aqueous solution of 30%, regulation pH value 12 ~ 13, be warming up to 85 DEG C, stirring 20h after stand, after removing aqueous phase, add that 145.3kg water carries out washing, aqueous phase is removed, be repeated 2 times；
Step (3), is that 30% biphosphate sodium water solution adds to Scattered Kettle by 0.9kg mass concentration, and regulation pH value, to 7 ~ 8, adds 2.3kg tetrabromobisphenol A bisglycidyl ether and 0.69kg diethylaminopropylamine, maintains the temperature at 85 DEG C, reacts 2h；
Step (4), after red phosphorus aqueous solution natural cooling 7h, is transferred to hanging bag type centrifugal machine and is centrifuged, centrifugal rear product carries out vacuum drum and is dried (-0.09Mpa, 120 DEG C), final prepared 145.1kg height phosphorus content cladded type red phosphorus product, phosphorus content is detected as 97.3%.
Embodiment 2
The preparation method of a kind of high phosphorus content cladded type red phosphorus, comprises the following steps:
Step (1), is positioned over 421.3kg red phosphorus and 1471.6kg aqueous solution in ball mill, is ground；
Step (2), ground red phosphorus aqueous solution is transferred in Scattered Kettle, put into 46.3kg mass concentration be 48% NaOH aqueous solution and 18.3kg mass concentration be the sodium sulfite aqueous solution of 30%, regulation pH value 13 ~ 14, be warming up to 95 DEG C, stirring 24h after stand, after removing aqueous phase, add that 630.9kg water carries out washing, aqueous phase is removed, be repeated 2 times；
Step (3), is that 30% biphosphate sodium water solution adds to Scattered Kettle by 3.9kg mass concentration, and regulation pH value, to 7 ~ 8, adds 8.4kg tetrabromobisphenol A bisglycidyl ether and 4.2kg diethylaminopropylamine, maintains the temperature at 95 DEG C, reacts 3h；
Step (4), after red phosphorus aqueous solution natural cooling 9h, is transferred to hanging bag type centrifugal machine and is centrifuged, centrifugal rear product carries out vacuum drum and is dried (-0.09Mpa, 120 DEG C), final prepared 425.2kg height phosphorus content cladded type red phosphorus product, phosphorus content is detected as 96.8%.
Embodiment 3
The preparation method of a kind of high phosphorus content cladded type red phosphorus, comprises the following steps:
Step (1), is positioned over 314.2kg red phosphorus and 940.7kg aqueous solution in ball mill, is ground；
Step (2), ground red phosphorus aqueous solution is transferred in Scattered Kettle, put into 32.8kg mass concentration be 48% NaOH aqueous solution and 12.7kg mass concentration be the sodium sulfite aqueous solution of 30%, regulation pH value 12 ~ 13, be warming up to 90 DEG C, stirring 22h after stand, after removing aqueous phase, add that 439.7kg water carries out washing, aqueous phase is removed, be repeated 2 times；
Step (3), is that 30% biphosphate sodium water solution adds to Scattered Kettle by 2.4kg mass concentration, and regulation pH value, to 7 ~ 8, adds 6.3kg tetrabromobisphenol A bisglycidyl ether and 2.5kg diethylaminopropylamine, maintains the temperature at 90 DEG C, reacts 3h；
Step (4), after red phosphorus aqueous solution natural cooling 9h, is transferred to hanging bag type centrifugal machine and is centrifuged, centrifugal rear product carries out vacuum drum and is dried (-0.09Mpa, 120 DEG C), final prepared 320.4kg height phosphorus content cladded type red phosphorus product, phosphorus content is detected as 96.1%.
In the present invention, first by red phosphorus and water mixed grinding so that red phosphorus is sufficiently humidified so as to, mill uniformly, and prevent in mill processes because temperature rising causes the spontaneous combustion of yellow phosphorus；Adding auxiliary agent I, rear washing carries out the removal of impurity, auxiliary agent I be added to effectively remove yellow phosphorus, because in red phosphorus, yellow phosphorus content is different, the addition of auxiliary agent I is different；The mixed solution why selecting auxiliary agent I to be NaOH aqueous solution and sodium sulfite aqueous solution, because NaOH aqueous solution cost is relatively low, sodium sulfite aqueous solution, as reducing agent, anti-oxidation, removes chloride ion in red phosphorus, bleaches red phosphorus simultaneously.The when of adding auxiliary agent I, regulation pH value is to 12 ~ 14；
Owing to alkalescence condition can affect the use of follow-up auxiliary agent III, add auxiliary agent II is that because of red phosphorus solution ph difference after washing, the addition of auxiliary agent II is the most different in order to regulate the pH value of red phosphorus aqueous solution to 7 ~ 8 later.Why select auxiliary agent II for biphosphate sodium water solution, because its pH value is 7 ~ 8, can prevent red phosphorus aqueous solution from becoming acid, effectively remove removing chloride simultaneously；
Add auxiliary agent III to be coated with, why select auxiliary agent III for tetrabromobisphenol A bisglycidyl ether and diethylenetriamine, because tetrabromobisphenol A bisglycidyl ether inherently a kind of fire retardant, synergistic effect can be reached with red phosphorus and improve fire resistance；Diethylenetriamine can make the epoxy radicals of tetrabromobisphenol A bisglycidyl ether crosslink reaction as the most frequently used firming agent, thus completes the cladding of red phosphorus granule.
Clad outside red phosphorus only has tetrabromobisphenol A bisglycidyl ether to be coated with one layer with diethylaminopropylamine, and clad is few, and available phosphorus content is higher, good flame resistance.
The present invention crosslinks reaction by the epoxy radicals of tetrabromobisphenol A bisglycidyl ether, completes the cladding to red phosphorus granule, and after cladding, product has the advantages such as burning-point is high, the compatibility is good, fire resistance is good.
Claims (6)
1. the preparation method of one kind high phosphorus content cladded type red phosphorus, it is characterised in that comprise the following steps:
(1) red phosphorus and water being positioned in ball mill, be ground, wherein the mass ratio of red phosphorus and water is 1:2.5 ~ 3.5；
(2) ground red phosphorus aqueous solution is transferred in Scattered Kettle, put into auxiliary agent I, regulation pH value to 12 ~ 14, be warming up to 85 ~ 95 DEG C, stand after stirring 20 ~ 24h, after removing aqueous phase, add water to wash, aqueous phase is removed, and is repeated 2 times, and wherein red phosphorus is 1:1 ~ 1.5 with the mass ratio of water scouring water；
(3) being added to Scattered Kettle by auxiliary agent II, regulation pH value, to 7 ~ 8, adds the most mixed auxiliary agent III, maintains the temperature at 85 ~ 95 DEG C, reacts 2 ~ 3h, and red phosphorus is 1:0.02 ~ 0.03 with the mass ratio of auxiliary agent III, obtains red phosphorus reactant liquor；
(4) by after red phosphorus reactant liquor natural cooling 7 ~ 9h, being transferred to centrifuge and be centrifuged, centrifugal rear product is dried, final prepared high phosphorus content cladded type red phosphorus product.
The preparation method of a kind of high phosphorus content cladded type red phosphorus the most according to claim 1, it is characterized in that: the mixed solution that the auxiliary agent I added in step (2) is the NaOH aqueous solution that mass concentration is 48% and the sodium sulfite aqueous solution that mass concentration is 30%, both mass ratioes are 1:0.3 ~ 0.4.
The preparation method of a kind of high phosphorus content cladded type red phosphorus the most according to claim 1, it is characterised in that: the auxiliary agent II added in step (3) is 30% biphosphate sodium water solution for mass concentration.
The preparation method of a kind of high phosphorus content cladded type red phosphorus the most according to claim 1, it is characterized in that: the mixed solution that auxiliary agent III is tetrabromobisphenol A bisglycidyl ether and diethylaminopropylamine added in step (3), both mass ratioes are 1:0.3 ~ 0.5.
The preparation method of a kind of high phosphorus content cladded type red phosphorus the most according to claim 1, it is characterised in that: centrifuge in step (4), for hanging bag type centrifugal machine.
The preparation method of a kind of high phosphorus content cladded type red phosphorus the most according to claim 1, it is characterised in that: drying machine in step (5), for vacuum drum drier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334953.0A CN105968415B (en) | 2016-05-19 | 2016-05-19 | A kind of preparation method of high phosphorus content cladded type red phosphorus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610334953.0A CN105968415B (en) | 2016-05-19 | 2016-05-19 | A kind of preparation method of high phosphorus content cladded type red phosphorus |
Publications (2)
| Publication Number | Publication Date |
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| CN105968415A true CN105968415A (en) | 2016-09-28 |
| CN105968415B CN105968415B (en) | 2018-05-11 |
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| CN201610334953.0A Expired - Fee Related CN105968415B (en) | 2016-05-19 | 2016-05-19 | A kind of preparation method of high phosphorus content cladded type red phosphorus |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136846A (en) * | 1980-03-31 | 1981-10-26 | Hitachi Chem Co Ltd | Heat-resistant and flame-retardant resin composition for laminate |
| CN101343542A (en) * | 2008-08-25 | 2009-01-14 | 温州大学 | Method for preparing ultra-fine red phosphorus microcapsule |
| CN102010618A (en) * | 2010-11-19 | 2011-04-13 | 桐城市信得新材料有限公司 | Method for preparing encapsulated red phosphorus |
| CN102140262A (en) * | 2011-01-19 | 2011-08-03 | 成都理工大学 | Preparation method of light-color microcapsule red phosphorus |
-
2016
- 2016-05-19 CN CN201610334953.0A patent/CN105968415B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56136846A (en) * | 1980-03-31 | 1981-10-26 | Hitachi Chem Co Ltd | Heat-resistant and flame-retardant resin composition for laminate |
| CN101343542A (en) * | 2008-08-25 | 2009-01-14 | 温州大学 | Method for preparing ultra-fine red phosphorus microcapsule |
| CN102010618A (en) * | 2010-11-19 | 2011-04-13 | 桐城市信得新材料有限公司 | Method for preparing encapsulated red phosphorus |
| CN102140262A (en) * | 2011-01-19 | 2011-08-03 | 成都理工大学 | Preparation method of light-color microcapsule red phosphorus |
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Denomination of invention: Preparation method of high-phosphorus-content cladded type red phosphorus Effective date of registration: 20181226 Granted publication date: 20180511 Pledgee: Haimen City Science and Technology Park Service Center Pledgor: KAIMEI CHEMICAL SCIENCE AND TECHNOLOGY (NANTONG) Co.,Ltd. Registration number: 2018980000275 |
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