CN103254560A - Preparation method of halogen-free flame retardant thermoplastic elastomer SBS (Styrene Butadiene Styrene) - Google Patents
Preparation method of halogen-free flame retardant thermoplastic elastomer SBS (Styrene Butadiene Styrene) Download PDFInfo
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- CN103254560A CN103254560A CN2013101777234A CN201310177723A CN103254560A CN 103254560 A CN103254560 A CN 103254560A CN 2013101777234 A CN2013101777234 A CN 2013101777234A CN 201310177723 A CN201310177723 A CN 201310177723A CN 103254560 A CN103254560 A CN 103254560A
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Abstract
The invention belongs to the technical field of organic chemical engineering and in particular relates to a preparation method of halogen-free flame retardant thermoplastic elastomer SBS (Styrene Butadiene Styrene). The preparation method comprises the following steps of: pre-heating a double-roller plasticator to 175 DEG C -185 DEG C, heating a certain amount of SBS matrixes on the double-roller plasticator until the matrixes are fused; adding a halogen-free flame retardant for mixing for 18 minutes-22minutes; thermally pressing on a hot press under the temperature of 175 DEG C-185 DEG C and the pressure of 9 MPa-11MPa; and carrying out cold molding under the normal temperature to obtain the halogen-free flame retardant thermoplastic elastomer SBS. The prepared halogen-free flame retardant thermoplastic elastomer SBS has good flame retardant efficiency (oxygen index being as high as 27%) and small combustion smoke formation amount, and is free of poisonous and corrosive gases and better in mechanical performances.
Description
Technical field
The invention belongs to field of chemical technology, be specifically related to the preparation method of a kind of halogen-free flame-retardant thermoplastic elastomer SBS.
Background technology
Thermoplastic elastomer is a kind of fluidity of molten of caoutchouc elasticity and thermoplastics and material of repeat performance of having concurrently.Because its excellent physical and mechanical properties, electrical insulation properties and process industrial art performance, and be widely used in fields such as electric wire, automobile industry, shoe industry, medical field, universal machine and industrial goods [chemistry with bonding, 1999, (2): 88-89].
The kind that SBS is output maximum (accounting for more than 70%) in the styrene analog thermoplastic elastomer (TPS), cost is minimum, application is wider.Similar to styrene-butadiene rubber(SBR), SBS has good tensile strength, and low-temperature performance is good, and electrical property is good, and characteristics such as good processability become the thermoplastic elastomer of present consumption maximum.SBS is mainly used in rubber item, modifier, tackiness agent and asphalt modifier four big fields at present, yet the same with most of polymer materials, the SBS disadvantage is its inflammableness, and this has limited the Application Areas of SBS material greatly.So, in order further to enlarge the Application Areas of SBS material, how it is carried out flame-retardant modifiedly, improve its flame retardant properties and be major issue [Electric Machines and Control, 2000,4 (1): 55-58 that must solve; New Chemical Materials, 2011,39 (4): 43-46].
Expansion type flame retardant (IFR) generally is to be the composite flame-retardant agent of nucleus with P, N, C element.Usually formed by carbon source (char-forming agent), acid source (dewatering agent) and source of the gas (swelling agent) three parts.During burning, chemical reaction takes place between each component generate porous expansion charcoal layer, that this charcoal layer can play is heat insulation, oxygen barrier, press down cigarette and anti-molten drop effect, thereby reaches fire-retardant purpose.
Summary of the invention
The object of the invention provides the preparation method of a kind of halogen-free flame-retardant thermoplastic elastomer SBS.
The preparation method of halogen-free flame-retardant thermoplastic elastomer SBS provided by the invention, concrete steps are as follows:
At first take by weighing the SBS matrix of 100 weight parts, 50-100 weight part halogen-free flame retardants; Twin-roll plastic mixing mill is preheated to 175-185 ℃, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 18-22min, with 175-185 ℃, 9-11MPa hot pressing, normal temperature coldmoulding namely obtains halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Among the present invention, the halogen-free flame retardants that adopts is any or the mixture between them in melamine phosphate (MP), ammonium polyphosphate (APP), terpolycyantoamino-formaldehyde resin coated ammonium polyphosphate microcapsule (MFAPP), Resins, epoxy coated ammonium polyphosphate microcapsule (EPAPP) or the dipentaerythritol (DPER).
The halogen-free flame-retardant thermoplastic elastomer SBS that the present invention is prepared, with the not SBS comparison of fire-retardant finish, oxygen index rises to about 27% from 19%, flame retardant effect promotes obviously, the burning fuming amount is little, does not produce poisonous and mordant gas, and mechanical property reduces few.
Embodiment
Further specify the present invention below by embodiment, rather than limit the scope of the invention.
Embodiment 1:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 67 parts ammonium polyphosphate (APP), twin-roll plastic mixing mill is preheated to 180 ℃ then, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, adds halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 2:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 67 parts melamine phosphate (MP), twin-roll plastic mixing mill is preheated to 180 ℃ then, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, adds halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 3:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 67 parts Resins, epoxy coated ammonium polyphosphate microcapsule (EPAPP), twin-roll plastic mixing mill is preheated to 180 ℃ then, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, adds halogen-free flame retardants again, mixing 20min, with 180 ℃, 10MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 4:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 67 parts terpolycyantoamino-formaldehyde resin coated ammonium polyphosphate microcapsule (MFAPP), twin-roll plastic mixing mill is preheated to 180 ℃ then, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, adds halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 5:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 50 parts APP, 17 parts of dipentaerythritol (DPER) are preheated to twin-roll plastic mixing mill 180 ℃ then, and the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 20min, with 180 ℃, 10MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 6:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 50 parts MP, 17 parts of DPER are preheated to twin-roll plastic mixing mill 180 ℃ then, and the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 7:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 50 parts EPAPP, 17 parts of DPER are preheated to twin-roll plastic mixing mill 180 ℃ then, and the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Embodiment 8:
According to prescription, at first take by weighing 100 parts SBS, take by weighing 50 parts MFAPP, 17 parts of DPER are preheated to twin-roll plastic mixing mill 180 ℃ then, and the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding has just obtained halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
Comparative Examples 1
According to prescription, take by weighing 100 parts SBS, twin-roll plastic mixing mill is preheated to 180 ℃, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, mixing 20min, with 180 ℃, 10 MPa hot pressing, normal temperature coldmoulding obtains thermoplastic elastomer SBS's pure sample on thermocompressor.
| ? | Limiting oxygen index(LOI)/% | Elongation at break/% | Tensile strength/MPa | Shock strength/(kJ ﹒ m -2) |
| Comparative Examples 1 | 19 | 1106 | 25.6 | 131 |
| Embodiment 1 | 21 | 419 | 12.0 | 71 |
| Embodiment 2 | 24 | 458 | 11.3 | 69 |
| Embodiment 3 | 25.5 | 474 | 11.4 | 61 |
| Embodiment 4 | 25.5 | 412 | 11.4 | 61 |
| Embodiment 5 | 27 | 414 | 11.1 | 66 |
| Embodiment 6 | 27 | 418 | 11.3 | 63 |
| Embodiment 7 | 27.5 | 461 | 11.3 | 59 |
| Embodiment 8 | 27.5 | 436 | 11.3 | 57 |
Claims (2)
1. the preparation method of a halogen-free flame-retardant thermoplastic elastomer SBS is characterized in that concrete steps are as follows:
At first take by weighing the SBS matrix of 100 weight parts, 50-100 weight part halogen-free flame retardants; Twin-roll plastic mixing mill is preheated to 175-185 ℃ then, the SBS matrix is heated to fusion at twin-roll plastic mixing mill, add halogen-free flame retardants again, mixing 18-22min, with 175-185 ℃, 9-11MPa hot pressing, normal temperature coldmoulding namely obtains halogen-free flame-retardant thermoplastic elastomer SBS on thermocompressor.
2. the preparation method of halogen-free flame-retardant thermoplastic elastomer SBS according to claim 1 is characterized in that described halogen-free flame retardants is any or the mixture between them in melamine phosphate, ammonium polyphosphate, terpolycyantoamino-formaldehyde resin coated ammonium polyphosphate microcapsule, Resins, epoxy coated ammonium polyphosphate microcapsule or the dipentaerythritol.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2013101777234A CN103254560A (en) | 2013-05-15 | 2013-05-15 | Preparation method of halogen-free flame retardant thermoplastic elastomer SBS (Styrene Butadiene Styrene) |
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| CN2013101777234A CN103254560A (en) | 2013-05-15 | 2013-05-15 | Preparation method of halogen-free flame retardant thermoplastic elastomer SBS (Styrene Butadiene Styrene) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787342A (en) * | 2015-04-27 | 2018-03-09 | 密执安州立大学董事会 | Durability dredges ice surface |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537331A (en) * | 2009-03-24 | 2009-09-23 | 同济大学 | Preparation method of ammonium polyphosphate flame retardant microcapsule coated with epoxy resin |
| CN101629007A (en) * | 2009-08-27 | 2010-01-20 | 华南理工大学 | Low smoke non-halogen flame retardant thermoplastic elastomer composite material and preparation method thereof |
| CN101735546A (en) * | 2009-12-30 | 2010-06-16 | 浙江北化阻燃材料有限公司 | High flame-retardant and high heat-resisting halogen-free expansion type fire-resistant cable material and preparation method thereof |
| CN102229712A (en) * | 2011-04-25 | 2011-11-02 | 同济大学 | Preparation method of melamine/formaldehyde resin cladded melamine phosphatic microcapsules for fire retardant |
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- 2013-05-15 CN CN2013101777234A patent/CN103254560A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101537331A (en) * | 2009-03-24 | 2009-09-23 | 同济大学 | Preparation method of ammonium polyphosphate flame retardant microcapsule coated with epoxy resin |
| CN101629007A (en) * | 2009-08-27 | 2010-01-20 | 华南理工大学 | Low smoke non-halogen flame retardant thermoplastic elastomer composite material and preparation method thereof |
| CN101735546A (en) * | 2009-12-30 | 2010-06-16 | 浙江北化阻燃材料有限公司 | High flame-retardant and high heat-resisting halogen-free expansion type fire-resistant cable material and preparation method thereof |
| CN102229712A (en) * | 2011-04-25 | 2011-11-02 | 同济大学 | Preparation method of melamine/formaldehyde resin cladded melamine phosphatic microcapsules for fire retardant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787342A (en) * | 2015-04-27 | 2018-03-09 | 密执安州立大学董事会 | Durability dredges ice surface |
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Application publication date: 20130821 |