CN107815033A - A kind of flame-proofed polystyrene plastics and preparation method thereof - Google Patents
A kind of flame-proofed polystyrene plastics and preparation method thereof Download PDFInfo
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- CN107815033A CN107815033A CN201610828045.7A CN201610828045A CN107815033A CN 107815033 A CN107815033 A CN 107815033A CN 201610828045 A CN201610828045 A CN 201610828045A CN 107815033 A CN107815033 A CN 107815033A
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- 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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/134—Phenols containing ester groups
- C08K5/1345—Carboxylic esters of phenolcarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/13—Phenols; Phenolates
- C08K5/136—Phenols containing halogens
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/36—Sulfur-, selenium-, or tellurium-containing compounds
- C08K5/37—Thiols
- C08K5/375—Thiols containing six-membered aromatic rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/49—Phosphorus-containing compounds
- C08K5/51—Phosphorus bound to oxygen
- C08K5/52—Phosphorus bound to oxygen only
- C08K5/524—Esters of phosphorous acids, e.g. of H3PO3
- C08K5/526—Esters of phosphorous acids, e.g. of H3PO3 with hydroxyaryl compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
- C08L25/02—Homopolymers or copolymers of hydrocarbons
- C08L25/04—Homopolymers or copolymers of styrene
- C08L25/06—Polystyrene
-
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The present invention provides a kind of flame-proofed polystyrene plastics, the flame-proofed polystyrene plastic bag contains composite flame-retardant agent and polystyrene, the composite flame-retardant agent includes brominated flame-retardant and sulfur-bearing fire retardant and/or phosphonium flame retardant, and the brominated flame-retardant is brominated phenolic compound and its epoxy resin.Brominated flame-retardant has synergy with sulfur-bearing fire retardant and/or phosphonium flame retardant on flame retardant effect, the fire resistance of composite flame-retardant agent can be strengthened, therefore the fire resistance of the polystyrene plastics finally given is strengthened, and make it that the flame-proofed polystyrene plastics of the present invention there is good mechanical performance and heat resistance, be a kind of polystyrene plastics with larger economy and environmentally friendly friendly.
Description
Technical field
The invention belongs to fire proofing field, is related to a kind of flame-proofed polystyrene plastics and preparation method thereof.
Background technology
Using mobile phone, computer, video camera, electronic game machine as the electronic product of representative, with air-conditioning, refrigerator, television image, sound
The various products that articles for use etc. use for the family expenses of representative, office electric equipment products and other field are rung, for safety, significant portion
Product require that it possesses different degrees of fire resistance.
In order that product reaches required fire resistance or grade, traditional technology usually uses to be added into material system
Add halogen-containing fire retardant matter, such as addition such as brominated bisphenol A, brominated bisphenol a type epoxy resin are brominated into system material
Amount is higher or containing the higher organic chemicals of halogen quantity, although these halogen-containing fire retardant matter anti-flammabilitys are preferable,
But its usage amount is bigger, such as in the preparation of engineering plastics, in order to reach preferable flame retardant effect, brominated resistance is used
When firing agent, it is ensured that bromine content is more than 20% in engineering plastics, and this causes bromo element content in product higher, and halogen in product
Cellulose content height also brings along some detrimental effects, such as the evil of harmful substance such as two of difficult degradation can be produced in high temperature or burning
English class organic halogen chemical contamination environment, influence the mankind and animal health.
Therefore, the usage amount and can for how reducing fire retardant enough ensures the problem of flame retardant effect is this area urgent need to resolve.
The content of the invention
In view of the shortcomings of the prior art, it is an object of the invention to provide a kind of flame-proofed polystyrene plastics and its preparation
Method.
To use following technical scheme up to this purpose, the present invention：
On the one hand, the present invention provides a kind of flame-proofed polystyrene plastics, and the flame-proofed polystyrene plastic bag is containing multiple
Close fire retardant and polystyrene, the composite flame-retardant agent include brominated flame-retardant and sulfur-bearing fire retardant and/or phosphonium flame retardant,
The brominated flame-retardant is brominated phenolic compound and its epoxy resin.
Coordinate sulfur-bearing fire retardant and/or phosphonium flame retardant composition synergistic flame retardant using brominated flame-retardant in the present invention,
The flame-proofed polystyrene plastics that coordinating polystyrene again can be prepared its composition have good anti-flammability and good
Good mechanical performance.
Brominated flame-retardant must be included in the composite flame-retardant agent of the present invention, and for sulfur-bearing fire retardant and phosphonium flame retardant
Can include one of which can also the two be included in composite flame-retardant agent, it is preferable that contain in the composite flame-retardant agent
Bromine flame retardant, sulfur-bearing fire retardant and phosphonium flame retardant, the brominated flame-retardant are brominated phenolic compound and its epoxy resin.
Preferably, brominated flame-retardant accounts for less than 10% in the flame-proofed polystyrene plastics,
Such as 10%, 9%, 8.5%, 8%, 7%, 7.5%, 6%, 5%, 4%, 3%, 2%, 1%, 0.5%, 0.3%, 0.1% etc.
Deng preferably 1-5%.
Preferably, percentage by weight shared by sulfur-bearing fire retardant is more than 0.2% in the flame-proofed polystyrene plastics, example
Such as 0.2%, 0.25%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 1.8%, 2%
Deng preferably 0.2-1%.
Preferably, percentage by weight shared by phosphonium flame retardant is more than 0.2% in the flame-proofed polystyrene plastics, example
Such as 0.2%, 0.25%, 0.3%, 0.4%, 0.5%, 0.6%, 0.7%, 0.8%, 0.9%, 1%, 1.5%, 1.8%, 2%,
2.5%th, 3%, 4%, 5% etc., preferably 0.2-2%.
In the content range of brominated flame-retardant, sulfur-bearing fire retardant and phosphonium flame retardant that the present invention limits, brominated resistance
Fire agent and sulfur-bearing fire retardant and/or phosphonium flame retardant are mutually coordinated, collaboration enhancing fire resistance, can either ensure that polystyrene is moulded
Material has a preferable fire resistance, and and can is enough to control bromo element content in relatively low scope, so as to reduce because high temperature has
The possibility of evil material, and in the content range, the various aspects of performance of the flame-proofed polystyrene plastics being prepared can be with
Optimized, there is good mechanical performance and fire resistance.
Traditional brominated flame-retardant will keep bromo element content just to be played more than 20% when being applied in engineering plastics
Preferable flame retardant effect, to ensure the fire resistance of polystyrene plastics, the present invention on the basis of brominated flame-retardant by adding
Enter a small amount of sulfur-bearing fire retardant and/or phosphonium flame retardant composition composite flame-retardant agent, can make it that brominated flame-retardant is fire-retardant with sulfur-bearing
The flame retardant effect of agent and/or phosphonium flame retardant is mutually promoted, and reaches the effect of cooperative flame retardant, while reduces brominated flame-retardant
Usage amount, it is cost-effective, and can ensure that polystyrene plastics has good mechanical performance.
In the present invention, each component content is with the total of flame-proofed polystyrene plastics in flame-proofed polystyrene plastics
Weight is 100% calculating.
Preferably, the brominated flame-retardant is brominated phenolic resin, bromination novolac epoxy resin, brominated bisphenol A, bromination pair
In phenol A derivatives, brominated bisphenol a type epoxy resin, tetrabromo-bisphenol s, tetrabromobisphenol allyl ether, tribromphenol or pentabromophenol
Any one or at least two combination, preferably brominated bisphenol A, brominated bisphenol A derivatives or brominated bisphenol a type epoxy resin.
Preferably, the sulfur-bearing fire retardant is to diphenyl disulfide phenol and/or 4,4'- diaminourea diphenyl disulfide, preferred pair benzene
Dithiol.
Preferably, the phosphonium flame retardant is that DOPO is etherified bisphenol-A, DOPO modified epoxies, three (2,6- dimethyl benzenes
Base) it is phosphine, four-(2,6- xylyls) resorcinol biphosphonates, resorcinol tetraphenyldiphosphate, triphenyl phosphate, double
Phenol A double (diphenyl phosphoester), phosphonitrile fire retardant, 10- (2,5- dihydroxy phenyls) -10- hydrogen -9- oxa- -10- phosphine phenanthrene -10- oxygen
Compound, 10- (2,5- dihydroxy naphthyl) -10- hydrogen -9- oxa-s -10- phosphines phenanthrene -10- oxides or the miscellaneous -10- of 9,10- dihydro-9-oxies
In phospho hetero phenanthrene -10- oxide fire retardants any one or at least two mixture.
In the present invention, brominated flame-retardant contained in the composite flame-retardant agent and sulfur-bearing fire retardant and/or phosphor-containing flame-proof
Agent in terms of increasing flame-proofed polystyrene flame retardant of plastic except in addition to having synergy, it can also be ensured that flame retardance poly
Polyglass has good mechanical performance.
Other fire proofings can be added as needed in the composite flame-retardant agent of the present invention.
Preferably, other described fire proofings be organic silicon fibre retardant, chloride organic fire-retardant, nitrogenous organic fire-retardant or
In inorganic combustion inhibitor any one or at least two combination.
Preferably, the chloride organic fire-retardant is Dioctyl Tetrachlorophthalate, chlorendic anhydride, chlorine mattress acid or tetrachloro
In bisphenol-A any one or at least two combination.
Preferably, the nitrogenous organic fire-retardant be dicyandiamide, biruea or melamine in any one or at least
Two kinds of combination.
Preferably, the inorganic combustion inhibitor is any one in aluminium hydroxide, magnesium hydroxide, antimony oxide or Firebrake ZB
Kind or at least two combination.
Preferably, polystyrene accounts for 80-95% in the flame-proofed polystyrene plastics, such as
80%th, 83%, 85%, 88%, 90%, 92%, 94% or 95%.
Preferably, also comprising the heat-proof modifier that percentage by weight is 1-3%, example in the flame-proofed polystyrene plastics
Content such as heat-proof modifier can be 1%, 1.3%, 1.5%, 1.8%, 2%, 2.3%, 2.5%, 2.8% or 3%.
Preferably, the heat-proof modifier is N-2,6- 3,5-dimethylphenyl maleimide heat-proof modifying agent.
Preferably, also comprising the antioxidant that percentage by weight is 1-3%, such as resist in the flame-proofed polystyrene plastics
The content of oxygen agent can be 1%, 1.3%, 1.5%, 1.8%, 2%, 2.3%, 2.5%, 2.8% or 3%.
Preferably, the antioxidant in antioxidant 1010, irgasfos 168 or antioxidant 1076 any one or extremely
Few two kinds combination.
Second aspect, the invention provides the preparation method of flame-proofed polystyrene plastics as described in relation to the first aspect, institute
The method of stating is：The composite flame-retardant agent, polystyrene, heat-proof modifier and antioxidant are well mixed, then extruding pelletization obtains
To the flame-proofed polystyrene plastics.
Preferably, described be blended in high pressure homogenizer mixes, the mixing temperature be 60-80 DEG C (such as 62 DEG C, 65
DEG C, 68 DEG C, 70 DEG C, 72 DEG C, 74 DEG C, 76 DEG C or 78 DEG C), incorporation time be 10-20min (such as 12min, 14min, 16min or
18min), the pressure in the high pressure homogenizer is 15-20Mpa (such as 16Mpa, 17Mpa, 18Mpa or 19Mpa)；
Preferably, the extrusion is carried out in double screw extruder, is in each section of temperature of double screw extruder：One area's temperature
170-180 DEG C (such as 170 DEG C, 173 DEG C, 175 DEG C, 178 DEG C or 180 DEG C), two 180-190 DEG C of area's temperature (such as 180 DEG C, 183
DEG C, 185 DEG C, 188 DEG C or 190 DEG C), three 210-230 DEG C of area's temperature (such as 210 DEG C, 212 DEG C, 215 DEG C, 218 DEG C, 220 DEG C,
223 DEG C, 225 DEG C, 228 DEG C or 230 DEG C), four 240-260 DEG C of area's temperature (such as 240 DEG C, 243 DEG C, 245 DEG C, 248 DEG C, 250
DEG C, 253 DEG C, 255 DEG C, 258 DEG C or 260 DEG C), five 170-180 DEG C of area's temperature (such as 170 DEG C, 173 DEG C, 175 DEG C, 178 DEG C or
180℃)。
Relative to prior art, the present invention has the advantages that：
Brominated flame-retardant in the flame-proofed polystyrene plastics of the present invention exists with sulfur-bearing fire retardant and/or phosphonium flame retardant
There is synergy on flame retardant effect, the fire resistance of polystyrene plastics can be strengthened, and polystyrene plastics is had
Good mechanical performance and heat resistance.The bending strength for the polystyrene plastics that the present invention is prepared may be up to 83-88MPa,
Tensile strength is up to 65-72MPa, and notch impact strength is up to 28-34J/m, and heat distortion temperature is in 130-137 DEG C, melting means
12.7-15, oxygen index (OI) 26.3-28%, there is good anti-flammability, excellent mechanical performance and heat resistance.
Embodiment
Technical scheme is further illustrated below by embodiment.Those skilled in the art should be bright
, the embodiment be only to aid in understand the present invention, be not construed as to the present invention concrete restriction.
Embodiment 1
By 10g brominated bisphenol a type epoxy resin, 5g to diphenyl disulfide phenol and 80g polystyrene, 3g N-2,6- dimethyl benzenes
Base maleimide amine type (TM-PMI) heat-proof modifier and 1g antioxidant 1010s mix 10min in high pressure homogenizer at 70 DEG C
To being well mixed, then extruded in double screw extruder, each section of temperature of double screw extruder is：One 175 DEG C of area's temperature, 2nd area
180 DEG C of temperature, three 210 DEG C of area's temperature, four 240 DEG C of area's temperature, five 170 DEG C of area's temperature, granulation obtain polystyrene plastics A, its
The performance test results are as shown in table 1.
Embodiment 2
By 10g brominated bisphenols A, 3g to diphenyl disulfide phenol and 85g polystyrene, 1g N-2,6- 3,5-dimethylphenyl maleimides
Amine type (TM-PMI) heat-proof modifier and 1g irgasfos 168s mix at 60 DEG C 20min to well mixed in high pressure homogenizer,
Then extruded in double screw extruder, each section of temperature of double screw extruder is：One 175 DEG C of area's temperature, two 190 DEG C of area's temperature,
Three 210 DEG C of area's temperature, four 260 DEG C of area's temperature, five 175 DEG C of area's temperature, granulation obtain polystyrene plastics B, its performance test knot
Fruit is as shown in table 1.
Embodiment 3
By 5g brominated bisphenols A, 0.2g 4,4'- diaminourea diphenyl disulfide and 90.8g polystyrene, 1gN-2,6- diformazans
Base phenyl maleimide type (TM-PMI) heat-proof modifier and 3g antioxidant 1010s mix in high pressure homogenizer at 80 DEG C
10min is then extruded, each section of temperature of double screw extruder is to being well mixed in double screw extruder：One area's temperature 180
DEG C, two 190 DEG C of area's temperature, three 210 DEG C of area's temperature, four 260 DEG C of area's temperature, five 170 DEG C of area's temperature, it is granulated and obtains polystyrene modeling
Material C, its performance test results are as shown in table 1.
Embodiment 4
By 10g brominated bisphenol a type epoxy resin, 1g tetra--(2,6- xylyls) resorcinol biphosphonate and 84g polyphenyl
Ethene, 2gN-2,6- 3,5-dimethylphenyl maleimide amine type (TM-PMI) heat-proof modifiers and 3g irgasfos 168s are high-pressure homogeneous
15min is mixed to being well mixed at 75 DEG C in machine, is then extruded in double screw extruder, each section of temperature of double screw extruder
For：One 180 DEG C of area's temperature, two 190 DEG C of area's temperature, three 230 DEG C of area's temperature, four 240 DEG C of area's temperature, five 180 DEG C of area's temperature, it is granulated
Polystyrene plastics D is obtained, its performance test results is as shown in table 1.
Embodiment 5
10g brominated bisphenols A, 1.5g DOPO are etherified bisphenol-A and 84.5g polystyrene, 3gN-2,6- 3,5-dimethylphenyl horses
Come imide-type (TM-PMI) heat-proof modifier and 1g antioxidant 1010s and 20min is mixed at 80 DEG C in high pressure homogenizer to mixed
Close uniformly, then extruded in double screw extruder, each section of temperature of double screw extruder is：One 170 DEG C of area's temperature, two area's temperature
190 DEG C, three 220 DEG C of area's temperature, four 250 DEG C of area's temperature, five 175 DEG C of area's temperature, it is granulated and obtains polystyrene plastics E, its performance
Test result is as shown in table 1.
Embodiment 6
5g brominated bisphenols A, 1g DOPO are etherified bisphenol-A and 89g polystyrene, 3gN-2,6- 3,5-dimethylphenyls Malaysia acyl
Imine (TM-PMI) heat-proof modifier and 3g antioxidant 1010s mix 10min at 70 DEG C in high pressure homogenizer and extremely mixed
It is even, then extruded in double screw extruder, each section of temperature of double screw extruder is：One 180 DEG C of area's temperature, two area's temperature 185
DEG C, three 230 DEG C of area's temperature, four 260 DEG C of area's temperature, five 180 DEG C of area's temperature, it is granulated and obtains polystyrene plastics F, its performance test
As a result it is as shown in table 1.
Embodiment 7
5g brominated bisphenols A, 0.5g DOPO are etherified bisphenol-A and 91.5g polystyrene, 1gN-2,6- 3,5-dimethylphenyl horses
Come imide-type (TM-PMI) heat-proof modifier and 2g antioxidant 1010s and 15min is mixed at 80 DEG C in high pressure homogenizer to mixed
Close uniformly, then extruded in double screw extruder, each section of temperature of double screw extruder is：One 175 DEG C of area's temperature, two area's temperature
180 DEG C, three 210 DEG C of area's temperature, four 240 DEG C of area's temperature, five 170 DEG C of area's temperature, it is granulated and obtains polystyrene plastics G, its performance
Test result is as shown in table 1.
Embodiment 8
5g brominated bisphenol a type epoxy resin, 0.5g is double to diphenyl disulfide phenol, 1g tetra--(2,6- xylyls) resorcinol
Phosphate and 91.5g polystyrene, 1g N-2,6- 3,5-dimethylphenyl maleimide amine type (TM-PMI) heat-proof modifier and 1g resist
Oxygen agent 168 mixes 10min to being well mixed in high pressure homogenizer at 70 DEG C, is then extruded in double screw extruder, double
Each section of temperature of screw extruder be：One 170 DEG C of area's temperature, two 185 DEG C of area's temperature, three 220 DEG C of area's temperature, four 245 DEG C of area's temperature,
Five 180 DEG C of area's temperature, granulation obtain polystyrene plastics G, and its performance test results is as shown in table 1.
Embodiment 9
5g brominated bisphenols A, 0.2g is etherified bisphenol-A and 90.3g polystyrene, 3g N- to diphenyl disulfide phenol, 1.5g DOPO
2,6- 3,5-dimethylphenyl maleimide amine type (TM-PMI) heat-proof modifiers and 1g irgasfos 168s are in high pressure homogenizer in 70 DEG C
Lower mixing 10min is then extruded, each section of temperature of double screw extruder is to being well mixed in double screw extruder：One area's temperature
170 DEG C of degree, two 185 DEG C of area's temperature, three 220 DEG C of area's temperature, four 245 DEG C of area's temperature, five 180 DEG C of area's temperature, granulation obtain polyphenyl
Vinyl plastics H, its performance test results are as shown in table 1.
Embodiment 10
By 3g brominated bisphenol A, 1g4,4'- diaminourea diphenyl disulfide, the universal DOPO modified epoxies of 0.2g with
89.8g polystyrene, 3g N-2,6- 3,5-dimethylphenyl maleimide amine type (TM-PMI) heat-proof modifier and 3g antioxidant 1076s
15min is mixed to being well mixed at 70 DEG C in high pressure homogenizer, is then extruded in double screw extruder, twin-screw extrusion
Each section of temperature of machine be：One 170 DEG C of area's temperature, two 180 DEG C of area's temperature, three 230 DEG C of area's temperature, four 250 DEG C of area's temperature, five area's temperature
170 DEG C, granulation obtains polystyrene plastics J, and its performance test results is as shown in table 1.
Embodiment 11
1g brominated bisphenols A, 0.5g is etherified bisphenol-A and 94.7g polystyrene to diphenyl disulfide phenol, 0.8gDOPO, 1g N-2,
6- 3,5-dimethylphenyl maleimide amine type (TM-PMI) heat-proof modifiers and 2g antioxidant 1076s are in high pressure homogenizer in 75 DEG C
Lower mixing 15min is then extruded, each section of temperature of double screw extruder is to being well mixed in double screw extruder：One area's temperature
180 DEG C of degree, two 180 DEG C of area's temperature, three 220 DEG C of area's temperature, four 260 DEG C of area's temperature, five 180 DEG C of area's temperature, granulation obtain polyphenyl
Vinyl plastics K, its performance test results are as shown in table 1.
Comparative example 1
The comparative example be the difference is that only with embodiment 1, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A types epoxy resin and to diphenyl disulfide phenol, only by 95g polystyrene, 3gN-2,6- 3,5-dimethylphenyl maleimide amine type (TM-
PMI) polystyrene plastics L, performance is prepared by method same as Example 1 in heat-proof modifier and 1g antioxidant 1010s
Test result is as shown in table 1.
Comparative example 2
The comparative example be the difference is that only with embodiment 1, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A type epoxy resin, the amount to diphenyl disulfide phenol of addition are 13g, the dosage and preparation method of remaining raw material with implementation
Example 1 is identical, and polystyrene plastics M is prepared, and its performance test results is as shown in table 1.
Comparative example 3
The comparative example the difference is that only with embodiment 1, is added without in the preparation of polystyrene plastics to benzene two
Thiophenol, the amount of the brominated bisphenol a type epoxy resin of addition are 13g, the dosage and preparation method of remaining raw material with implementation
Example 1 is identical, and polystyrene plastics N is prepared, and its performance test results is as shown in table 1.
Comparative example 4
The comparative example be the difference is that only with embodiment 4, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A types epoxy resin and four-(2,6- xylyl) resorcinol biphosphonates, only by 95g polystyrene, 2gN-2,6- diformazans
Base phenyl maleimide type (TM-PMI) heat-proof modifier and 3g irgasfos 168s are prepared by method same as Example 4
Polystyrene plastics O is obtained, its performance test results is as shown in table 1.
Comparative example 5
The comparative example be the difference is that only with embodiment 4, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A type epoxy resin, the additions of four-(2,6- xylyl) resorcinol biphosphonates are 11g, the dosage of remaining raw material with
And preparation method with it is same as Example 4, polystyrene plastics P is prepared, its performance test results is as shown in table 1.
Comparative example 6
The comparative example the difference is that only with embodiment 4, it is added without four in the preparation of polystyrene plastics-(2,
6- xylyls) resorcinol biphosphonate, the addition of brominated bisphenol a type epoxy resin is 11g, the dosage of remaining raw material with
And preparation method with it is same as Example 4, polystyrene plastics Q is prepared, its performance test results is as shown in table 1.
Comparative example 7
The comparative example be the difference is that only with embodiment 8, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A type epoxy resin, the dosage to diphenyl disulfide phenol is 5.5g, and remaining raw material dosage and preparation method are same as Example 8,
Polystyrene plastics Q is prepared, its performance test results is as shown in table 1.
Comparative example 8
The comparative example be the difference is that only with embodiment 8, and it is double that bromination is added without in the preparation of polystyrene plastics
Phenol A type epoxy resin, the dosage of four-(2,6- xylyl) resorcinol biphosphonates is 6g, remaining raw material dosage and system
Preparation Method is same as Example 8, and polystyrene plastics S is prepared, and its performance test results is as shown in table 1.
Table 1
Table 2
The bending strength for the polystyrene plastics that the present invention is prepared can it can be seen from the test result of Tables 1 and 2
Up to 82-85MPa, tensile strength are up to 67-69MPa, and notch impact strength is up to 28-30J/m, and heat distortion temperature is in 129-
137 DEG C, melting means 12.6-15, oxygen index (OI) 26.2-27.5%, thus with good anti-flammability, excellent mechanical performance and
Heat resistance.
Without using brominated flame-retardant and sulfur-bearing fire retardant or individually it can be seen from embodiment 1 and comparative example 1-3 contrast
During using both fire retardants, bending strength, tensile strength and the notch impact strength of its polystyrene plastics being prepared
Obvious to reduce, melting means has increased, and oxygen index (OI) illustrates that its mechanical performance and fire resistance are decreased obviously, together in 20-23
When also demonstrate that brominated flame-retardant and sulfur-bearing fire retardant improve polystyrene plastics anti-flammability and mechanical properties have association
Same-action.
Brominated flame-retardant and phosphonium flame retardant are improving polyphenyl second it can be seen from embodiment 4 and comparative example 4-6 contrast
The anti-flammability aspect of alkene plastics has synergy, and the addition of composite flame-retardant agent also has promotion for improving mechanical performance
Effect.Equally, embodiment 8 and comparative example 7-8 contrast can also prove, sulfur-bearing fire retardant, phosphonium flame retardant and sulfur-bearing resistance
Fire agent has synergy in terms of the anti-flammability of polystyrene plastics is improved, and the addition of composite flame-retardant agent is for improving machine
Tool performance also has facilitation.
Equally, by embodiment 1-11 and comparative example 1-8 contrast as can be seen that the polystyrene plastics of the present invention with compared with
High heat distortion temperature, heat resistance is good, and certain influence can be produced to its heat resistance by changing its component composition.
Therefore, brominated flame-retardant can form synergistic fire retardant with sulfur-bearing fire retardant and/or phosphonium flame retardant in the present invention,
The present invention applies the synergistic fire retardant, coordinates polystyrene so that and the polystyrene plastics of preparation has good combination property,
The present invention can keep polystyrene plastics to have good flame-retardance energy and good machine while bromo element content is reduced
Tool performance and heat resistance.
Applicant states that the present invention illustrates the flame-proofed polystyrene plastics of the present invention, but this by above-described embodiment
Invention is not limited to above-described embodiment, that is, does not mean that the present invention has to rely on above-described embodiment and could implemented.Affiliated technology
The technical staff in field is it will be clearly understood that any improvement in the present invention, to the equivalence replacement and auxiliary of each raw material of product of the present invention
The addition of composition, selection of concrete mode etc., within the scope of all falling within protection scope of the present invention and disclosing.
Claims (10)
1. a kind of flame-proofed polystyrene plastics, it is characterised in that the flame-proofed polystyrene plastic bag contains composite flame-retardant agent
And polystyrene, the composite flame-retardant agent includes brominated flame-retardant and sulfur-bearing fire retardant and/or phosphonium flame retardant, described brominated
Fire retardant is brominated phenolic compound and its epoxy resin.
2. flame-proofed polystyrene plastics according to claim 1, it is characterised in that the flame-proofed polystyrene plastics
Middle brominated flame-retardant accounts for less than 10%, preferably 1-5%；
Preferably, percentage by weight shared by sulfur-bearing fire retardant is more than 0.2% in the flame-proofed polystyrene plastics, preferably
0.2-1%；
Preferably, percentage by weight shared by phosphonium flame retardant is more than 0.2% in the flame-proofed polystyrene plastics, preferably
0.2-2%.
3. flame-proofed polystyrene plastics according to claim 1 or 2, it is characterised in that the brominated flame-retardant is bromine
Change phenolic resin, bromination novolac epoxy resin, brominated bisphenol A, brominated bisphenol A derivatives, brominated bisphenol a type epoxy resin, four
In bromine bisphenol S, tetrabromobisphenol allyl ether, tribromphenol or pentabromophenol any one or at least two combination, preferred bromine
Change bisphenol-A, brominated bisphenol A derivatives or brominated bisphenol a type epoxy resin.
4. the flame-proofed polystyrene plastics according to any one of claim 1-3, it is characterised in that the sulfur-bearing is fire-retardant
Agent is to diphenyl disulfide phenol and/or 4,4'- diaminourea diphenyl disulfide, preferred pair diphenyl disulfide phenol；
Preferably, the phosphonium flame retardant is that DOPO is etherified bisphenol-A, DOPO modified epoxies, three (2,6- 3,5-dimethylphenyls)
Phosphine, four-(2,6- xylyls) resorcinol biphosphonates, resorcinol tetraphenyldiphosphate, triphenyl phosphate, bisphenol-A
Double (diphenyl phosphoesters), phosphonitrile fire retardant, 10- (2,5- dihydroxy phenyls) -10- hydrogen -9- oxa- -10- phosphine phenanthrene -10- oxidations
Thing, 10- (2,5- dihydroxy naphthyl) -10- hydrogen -9- oxa-s -10- phosphines phenanthrene -10- oxides or the miscellaneous -10- phosphorus of 9,10- dihydro-9-oxies
In miscellaneous phenanthrene -10- oxide fire retardants any one or at least two mixture.
5. the flame-proofed polystyrene plastics according to any one of claim 1-4, it is characterised in that the composite flame-proof
Agent also includes other fire proofings；
Preferably, other described fire proofings are organic silicon fibre retardant, chloride organic fire-retardant, nitrogenous organic fire-retardant or inorganic
In fire retardant any one or at least two combination.
6. flame-proofed polystyrene plastics according to claim 5, it is characterised in that the chloride organic fire-retardant is four
Chlore O-phthalic acid dioctyl phthalate, chlorendic anhydride, chlorine mattress acid or tetrachlorobisphenol A in any one or at least two combination；
Preferably, the nitrogenous organic fire-retardant is any one in dicyandiamide, biruea or melamine or at least two
Combination；
Preferably, the inorganic combustion inhibitor be aluminium hydroxide, magnesium hydroxide, antimony oxide or Firebrake ZB in any one or
At least two combination.
7. the flame-proofed polystyrene plastics according to any one of claim 1-6, it is characterised in that the flame retardance poly
Polystyrene accounts for 80-95% in polyglass.
8. the flame-proofed polystyrene plastics according to any one of claim 1-7, it is characterised in that the flame retardance poly
Polyglass is also comprising the heat-proof modifier that percentage by weight is 1-3%；
Preferably, the heat-proof modifier is N-2,6- 3,5-dimethylphenyl maleimide heat-proof modifying agent；
Preferably, also comprising the antioxidant that percentage by weight is 1-3% in the flame-proofed polystyrene plastics；
Preferably, the antioxidant in antioxidant 1010, irgasfos 168 or antioxidant 1076 any one or at least two
The combination of kind.
9. the preparation method of the flame-proofed polystyrene plastics according to any one of claim 1-8, it is characterised in that institute
The method of stating is：The composite flame-retardant agent, polystyrene, heat-proof modifier and antioxidant are well mixed, then extruding pelletization obtains
To the flame-proofed polystyrene plastics.
10. preparation method according to claim 9, it is characterised in that described be blended in high pressure homogenizer mixes, described
Mixing temperature is 60-80 DEG C, incorporation time 10-20min, and the pressure in the high pressure homogenizer is 15-20Mpa；
Preferably, the extrusion is carried out in double screw extruder, is in each section of temperature of double screw extruder：One area temperature 170-
180 DEG C, two 180-190 DEG C of area's temperature, three 210-230 DEG C of area's temperature, four 240-260 DEG C of area's temperature, five area temperature 170-180
℃。
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109535628A (en) * | 2018-11-28 | 2019-03-29 | 苏州生益科技有限公司 | A kind of flame-retardant resin prepolymer and compositions of thermosetting resin, prepreg and laminate using its preparation |
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2016
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Cited By (1)
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|---|---|---|---|---|
| CN109535628A (en) * | 2018-11-28 | 2019-03-29 | 苏州生益科技有限公司 | A kind of flame-retardant resin prepolymer and compositions of thermosetting resin, prepreg and laminate using its preparation |
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