CN104693598A - Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof - Google Patents
Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof Download PDFInfo
- Publication number
- CN104693598A CN104693598A CN201410767682.9A CN201410767682A CN104693598A CN 104693598 A CN104693598 A CN 104693598A CN 201410767682 A CN201410767682 A CN 201410767682A CN 104693598 A CN104693598 A CN 104693598A
- Authority
- CN
- China
- Prior art keywords
- environment
- polypropylene
- friendly high
- efficiency
- ammonium polyphosphate
- 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
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- 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
Abstract
The invention relates to environment-friendly high-efficiency flame-retardant polypropylene and a preparation method thereof. The environment-friendly high-efficiency flame-retardant polypropylene comprises the following components in percentage by weight: 65%-80% of polypropylene, 10%-20% of MHEDP (Melamine Hydroxy Ethylidene Bisphosphonate), 8%-15% of APP (Ammonium Polyphosphate), 5%-10% of MP (Melamine Phosphate), 1%-5% of antioxidants and 1%-5% of lubricating agents. The environment-friendly high-efficiency flame-retardant polypropylene disclosed by the invention has the characteristics of easiness for raw material obtaining, simpleness, convenience and easiness for process, safety in production operation and the like. The obtained flame-retardant polypropylene has the advantages of good stability, excellent comprehensive property and good application prospect.
Description
Technical field
The present invention relates to a kind of environment-friendly high-efficiency polypropylene flame redardant and preparation method thereof.
Background technology
Polypropylene (PP) is widely used in the industries such as automobile, household electrical appliances, weaving, building with the mechanicalness of its excellence, good electrical insulating property, chemical proofing and the feature such as density is little, quality is light, but polypropylene oxygen index is low, only have 17.4%, easy burning, and polyacrylic burning is few cigarette type, do not become charcoal, but be attended by molten drop and curtain coating phenomenon on fire, and produce a large amount of unsaturated gas.Therefore, polyacrylic fire-retardant research is urgently to be resolved hurrily.
Little, the low cigarette of phosphorus flame retardant toxicity, price are lower, the most noticeable in fire retardant development field.Ammonium polyphosphate is a kind of inorganic phosphorus fire retardant of excellent property, and the amount of being fuming is little, applied range, can be used alone, and also jointly can use with other fire retardants.Large for solving water absorbability in ammonium polyphosphate use procedure, with the shortcoming such as polymkeric substance agglutinating value(of coal) and bad dispersibility durability of fire-retardant difference, modification is carried out to it and is very important.And to carry out the most effective means of modification to ammonium polyphosphate be carry out Surface coating.Modified ammonium polyphosphate is water-soluble significantly to be reduced, and mobility improves.
Nitrogenated flame retardant has that volatility is minimum, low toxicity, with polymer compatibility is good, decomposition temperature is high, be applicable to advantages such as processing, become the based flame retardant be popular.The most frequently used nitrogen system organic fire-retardant is trimeric cyanamide and derivative thereof.Nitrogenated flame retardant usually and the composite use of other ignition dope such as phosphorus system.
Tan Linghua etc. add 30% ammonium polyphosphate in PP, and its LOI only has 19.5%.Melamine phosphate is applied in polypropylene material by Zhang Zejiang etc., adds separately 30% melamine phosphate and the LOI of PP just can be made to reach 27.1%, and larger to the mechanical impact of material.Yang Meizhu etc. are by trimeric cyanamide, and ammonium polyphosphate, in tetramethylolmethane composite usage and PP, find interpolation 21.3% ammonium polyphosphate, 7.1% tetramethylolmethane and 0.71% trimeric cyanamide, the LOI of material just can reach 26.0.Research finds, by fire retardant composite to trimeric cyanamide hydroxy ethylene diphosphonic acid salt, ammonium polyphosphate and melamine phosphate, fire retardant total amount is added to about 20% can make polypropylene reach UL-94V-0 level, and LOI is more than 30%, and fire-retardant PP still keeps good mechanical property.To sum up, developing high-efficiency environment friendly, having the flame retardant combination of P-N synergistic effect is following large focus.
Summary of the invention
The object of this invention is to provide a kind of environment-friendly high-efficiency polypropylene flame redardant and preparation method thereof, homemade trimeric cyanamide hydroxy ethylene diphosphonic acid salt fire retardant is adopted to be main body, composite ammonium polyphosphate, melamine phosphate, improve flame retarding efficiency, reduce the loss of mechanical property, reach required flame-retardancy requirements.Prior it is possible to reduces costs, and market accepts possibility and increases, and fire retardant used has the feature of low toxicity, environmental protection, can not decompose generation corrosive gases, and meet the requirement of environmental protection now, development prospect is huge.
For achieving the above object, the present invention is achieved by the following technical programs:
A kind of environment-friendly high-efficiency polypropylene flame redardant of the present invention, comprises following component:
As preferred technical scheme:
A kind of environment-friendly high-efficiency polypropylene flame redardant as above, described its structure of trimeric cyanamide hydroxy ethylene diphosphonic acid salt is as follows:
A kind of environment-friendly high-efficiency polypropylene flame redardant as above, described ammonium polyphosphate is one in common ammonium polyphosphate, microcapsule ammonium polyphosphate or two kinds of mixtures, and wherein the coating material of microcapsule ammonium polyphosphate mainly contains melamine-formaldehyde resin, epoxy resin, urea-formaldehyde resin, terpolycyantoamino-formaldehyde resin etc.
A kind of environment-friendly high-efficiency polypropylene flame redardant as above, described polypropylene is homo-polypropylene or Co-polypropylene or its blend.
A kind of environment-friendly high-efficiency polypropylene flame redardant as above; described antioxidant is pentaerythritol bis-phosphite two (2; 4-di-tert-butyl phenyl) ester, phosphorous acid ester three (2; 4-di-tert-butyl phenyl) ester, the dimer of many alkyl bisphenol A phosphorous acid ester and trimerical mixture; N; N-pair-[3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl] quadrol, any one or two or more mixtures in four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester.
A kind of environment-friendly high-efficiency polypropylene flame redardant as above, described lubricant is one or both mixtures in polyethylene wax, paraffin, silicone oil.
Present invention also offers the preparation method of described a kind of environment-friendly high-efficiency polypropylene flame redardant, comprising: polypropylene and fire retardant are dried in baking oven, make material moisture content <0.2%.Dried polypropylene is fully mixed with lubricant, antioxidant, adds in feeding cylinder, then in barrel, drop into fire retardant, fully mix.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 190 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Beneficial effect:
The environment-friendly high-efficiency anti-flaming polypropylene material prepared by preparation method of the present invention, is had P-N synergistic flame retardant effect, good flame retardation effect, can meet multiple processing request.And degradation production low toxicity, non-corrosiveness, meet the requirement of environment friendly flame retardant.
Embodiment
Below in conjunction with embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
Embodiment 1
Fully mixed with 1% lubricant, 1% antioxidant by 80% polypropylene, add in feeding cylinder, in barrel, then drop into 8% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 5% microcapsule ammonium polyphosphate, 5% melamine phosphate, mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 30.0%.
Embodiment 2
Fully mixed with 1% lubricant, 2% antioxidant by 75% polypropylene, add in feeding cylinder, in barrel, then drop into 10% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 6% microcapsule ammonium polyphosphate, 6% melamine phosphate, mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 32.8%.
Embodiment 3
Fully mixed with 3% lubricant, 3% antioxidant by 70% polypropylene, add in feeding cylinder, in barrel, then drop into 12% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 7% ammonium polyphosphate, 5% melamine phosphate, mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 32.5%.
Embodiment 4
Fully mixed with 2% lubricant, 2% antioxidant by 66% polypropylene, add in feeding cylinder, in barrel, then drop into 14% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 10% ammonium polyphosphate, 6% melamine phosphate, fully mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 33.3%.
Embodiment 5
Fully mixed with 1% lubricant, 1% antioxidant by 65% polypropylene, add in feeding cylinder, in barrel, then drop into 15% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 10% microcapsule ammonium polyphosphate, 5% melamine phosphate, fully mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 34.3%.
Embodiment 6
Fully mixed with 2% lubricant, 2% antioxidant by poly-65% propylene, add in feeding cylinder, in barrel, then drop into 16% trimeric cyanamide hydroxy ethylene diphosphonic acid salt, 9% ammonium polyphosphate, 6% melamine phosphate, fully mixes.Forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 180 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.Standard batten is injection molded into plastic-injection moulding machine after the said products being put into baking oven.The batten of injection formed is put into glass desicator immediately and is placed at ambient temperature and at least carry out performance test after 24h.Test result shows that the flame retardant rating of product can reach UL94V-0 (3.2mm), and LOI is 34.8%.
Claims (7)
1. an environment-friendly high-efficiency polypropylene flame redardant, is characterized in that, comprises following component:
2. a kind of environment-friendly high-efficiency polypropylene flame redardant according to claim 1, is characterized in that, described trimeric cyanamide hydroxy ethylene diphosphonic acid salt structure is as follows:
3. a kind of environment-friendly high-efficiency polypropylene flame redardant according to claim 1, it is characterized in that, described ammonium polyphosphate is one in common ammonium polyphosphate, microcapsule ammonium polyphosphate or two kinds of mixtures, and wherein the coating material of microcapsule ammonium polyphosphate has melamine-formaldehyde resin, epoxy resin, urea-formaldehyde resin or terpolycyantoamino-formaldehyde resin.
4. a kind of environment-friendly high-efficiency polypropylene flame redardant according to claim 1, is characterized in that, described polypropylene is homo-polypropylene or Co-polypropylene, or the blend of above two kinds of materials.
5. a kind of environment-friendly high-efficiency polypropylene flame redardant according to claim 1; it is characterized in that; described antioxidant is pentaerythritol bis-phosphite two (2; 4-di-tert-butyl phenyl) ester, phosphorous acid ester three (2; 4-di-tert-butyl phenyl) ester, the dimer of many alkyl bisphenol A phosphorous acid ester and trimerical mixture; N; N-pair-[3-(3; 5-di-tert-butyl-hydroxy phenyl) propionyl] quadrol, any one or two or more mixtures in four [β-(3,5-di-t-butyl 4-hydroxy phenyl) propionic acid] pentaerythritol ester.
6. a kind of environment-friendly high-efficiency polypropylene flame redardant according to claim 1, is characterized in that, described lubricant is one or both mixtures in polyethylene wax, paraffin, silicone oil.
7. the preparation method of a kind of environment-friendly high-efficiency polypropylene flame redardant as claimed in claim 1, it is characterized in that, comprise and polypropylene and fire retardant are dried in baking oven, make material moisture content <0.2%, dried polypropylene is fully mixed with lubricant, antioxidant, adds in feeding cylinder, then in barrel, drop into fire retardant, fully mixed, forcing machine sent into by the pellet feeding mixed; Temperature controlling range is: feeding section: 170 ~ 190 DEG C; Melt zone: 200 ~ 220 DEG C; Extruding zone: 190 ~ 200 DEG C; Engine speed is 200 ~ 300rpm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767682.9A CN104693598A (en) | 2014-12-12 | 2014-12-12 | Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410767682.9A CN104693598A (en) | 2014-12-12 | 2014-12-12 | Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104693598A true CN104693598A (en) | 2015-06-10 |
Family
ID=53341174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410767682.9A Pending CN104693598A (en) | 2014-12-12 | 2014-12-12 | Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104693598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106397976A (en) * | 2016-08-31 | 2017-02-15 | 欧宝聚合物江苏有限公司 | Low-smoke halogen-free flame-retardant polypropylene and preparation method thereof |
| CN107286479A (en) * | 2017-07-21 | 2017-10-24 | 上海日之升科技有限公司 | A kind of cold-resistant highly effective flame-retardant polypropene composition of lightweight HI high impact |
| WO2018030901A1 (en) * | 2016-08-12 | 2018-02-15 | OUTSOURCING PARTNERS POLSKA Sp. z o.o. | Method for producing composites of isotactic polypropylene |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000273327A (en) * | 1999-03-29 | 2000-10-03 | Nippon Chem Ind Co Ltd | Flame retardant composition and flame-retarded resin composition |
| JP2001098161A (en) * | 1999-09-30 | 2001-04-10 | Nippon Chem Ind Co Ltd | Flame retardant resin composition |
| CN103275352A (en) * | 2013-06-19 | 2013-09-04 | 福州大学 | P-N intumescent flame retardant and preparation method thereof |
| CN103554595A (en) * | 2013-10-23 | 2014-02-05 | 上海富元塑胶科技有限公司 | Halogen-free flame retardant, halogen-free flame-retardant polyolefin composition and application thereof |
-
2014
- 2014-12-12 CN CN201410767682.9A patent/CN104693598A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000273327A (en) * | 1999-03-29 | 2000-10-03 | Nippon Chem Ind Co Ltd | Flame retardant composition and flame-retarded resin composition |
| JP2001098161A (en) * | 1999-09-30 | 2001-04-10 | Nippon Chem Ind Co Ltd | Flame retardant resin composition |
| CN103275352A (en) * | 2013-06-19 | 2013-09-04 | 福州大学 | P-N intumescent flame retardant and preparation method thereof |
| CN103554595A (en) * | 2013-10-23 | 2014-02-05 | 上海富元塑胶科技有限公司 | Halogen-free flame retardant, halogen-free flame-retardant polyolefin composition and application thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018030901A1 (en) * | 2016-08-12 | 2018-02-15 | OUTSOURCING PARTNERS POLSKA Sp. z o.o. | Method for producing composites of isotactic polypropylene |
| CN106397976A (en) * | 2016-08-31 | 2017-02-15 | 欧宝聚合物江苏有限公司 | Low-smoke halogen-free flame-retardant polypropylene and preparation method thereof |
| CN107286479A (en) * | 2017-07-21 | 2017-10-24 | 上海日之升科技有限公司 | A kind of cold-resistant highly effective flame-retardant polypropene composition of lightweight HI high impact |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103160025B (en) | High-glowing filament anti-soaking separate-out-free halogen-free inflaming retarding polypropylene materials and preparation method thereof | |
| CN106189221B (en) | A kind of halogen-free flame-retardant glass fiber enhancing nylon and its preparation method and application | |
| CN103304992B (en) | A kind of high glowing filament ignition temperature flame-retardant nylon composition | |
| WO2019100592A1 (en) | Halogen-free flame retardant compound system for glass fiber reinforced nylon and application thereof in halogen-free flame retardant glass fiber reinforced nylon material | |
| CN105295101A (en) | Microencapsulated red phosphorus fire retardant and preparation method and application thereof | |
| CN110054807B (en) | Phosphorus-nitrogen halogen-free flame retardant composition for improving thermal stability by using inorganic metal phosphite and application thereof | |
| CN104693604A (en) | Halogen-free flame retardant glass-fiber reinforced polypropylene composite material and preparation method thereof | |
| CN103073744B (en) | Phosphorus, nitrogen and bromine compound system fire retardant and preparation method thereof | |
| CN107141591A (en) | A kind of few additive halogen-free anti-flaming polypropylene material and preparation method thereof | |
| CN102964667B (en) | Halogen-free flame-retardant polyethylene composite material and preparation method thereof | |
| CN103304895A (en) | Efficient halogen-free intumescent flame-retardant polypropylene material | |
| CN109721768A (en) | Bittern-free phosphorous-nitrogen composite flame-retardant agent and halogen-free combustion-proof thermoplastic polymer comprising it | |
| CN102924521A (en) | Silicon-containing expansive flame retardant and preparation method and application thereof | |
| CN102219957A (en) | Functional masterbatch of halogen-free intumescent flame retardant, and preparation method thereof | |
| CN103467850A (en) | Halogen-free flame-retardant polypropylene composition and preparation method thereof | |
| CN108102359A (en) | A kind of environmentally protective, high-performance, high CTI flame-retardant reinforced nylon materials and preparation method thereof | |
| CN104693598A (en) | Environment-friendly high-efficiency flame-retardant polypropylene and preparation method thereof | |
| CN105623179A (en) | Anti-yellowing halogen-free flame retardant thermoplastic elastomer and preparation method thereof | |
| CN103333423B (en) | Compound flame-retardant polystyrene composition and preparation method thereof | |
| CN103709666A (en) | Halogen-free and flame retardation modified PET engineering plastic and preparation method thereof | |
| US20230416503A1 (en) | High-heat and high-shear-resistant high-flame-retardant halogen-free flame-retardant compound system and use | |
| CN103709620A (en) | Halogen-free, flame-retardant and antistatic master batch for modifying polybutylene telephthalate | |
| CN108203527A (en) | A kind of high limit oxygen index (OI) halogen-free flameproof PP materials and preparation method thereof | |
| CN103881185A (en) | Fire-retardant modified polyethylene material and preparation method thereof | |
| CN104151699A (en) | Low-smoke halogen-free flame-retardant polypropylene material containing double hydroxide and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150610 |