CN106009581A - Intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and preparation method thereof - Google Patents
Intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and preparation method thereof Download PDFInfo
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- CN106009581A CN106009581A CN201610347441.8A CN201610347441A CN106009581A CN 106009581 A CN106009581 A CN 106009581A CN 201610347441 A CN201610347441 A CN 201610347441A CN 106009581 A CN106009581 A CN 106009581A
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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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
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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
- C08L2201/22—Halogen free composition
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention relates to intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and a preparation method thereof. The intumescent fire-resistant enhanced ASA/PC alloy is prepared from the following ingredients and raw materials in parts by weight: 50 to 60 parts of PC, 10 to 20 parts of ASA, 3 to 8 parts of tougheners, 4 to 7 parts of compatilizers, 10 to 20 parts of intumescent flame retardants, 2 to 4 parts of flame retardant synergists, 0.01 to 0.5 part of lubricating agents and 0.1 to 0.5 part of antioxidizers. The preparation method comprises the following steps of weighing raw materials according to the mixture ratio; then, adding the raw materials into a feeding opening of a double-screw extruding machine; controlling the rotating speed of the double-screw extruding machine to be 300 to 500 r/min to perform extrusion and granulation; performing preparation to obtain the intumescent flame retardant enhanced ASA/PC alloy. The alloy material has the advantages that the toughness is high; the mechanical performance and the flame retardant performance are good; the smoke release quantity is small; the material belongs to a green and environment-friendly alloy material.
Description
Technical field
The invention belongs to polymeric material field, relate to a kind of expansion type flame-retarding strengthen ASA/PC alloy and
Its preparation method.
Background technology
Merlon (PC) is the engineering plastics of a kind of excellent performance, has the mechanical performance, resistance to of excellence
High-temperature behavior and light transmission thus the every field that is widely used in, meanwhile, Merlon there is also and flows
Dynamic property is poor, poor heat resistance, be easily generated the shortcomings such as internal stress cracking.Preparation PC/ASA alloy is to improve to gather
The effective way of carbonic ester, ASA (acrylonitrile-styrene-acrylic ester copolymer resin) can reduce
The viscosity of Merlon, improves the stress cracking resistance of Merlon.
At present, it is flame-retardant modified that PC/ASA alloy typically uses traditional halogenated flame retardant to carry out, but along with section
The progress of skill, the requirement to material environment friendly is more and more higher, the fire-retardant harm brought of traditional halogen system
Day by day obvious, as generated more corrosivity gas when the PC/ASA alloy fire-retardant with bromide fire retardant burns
Body and smog, promote people to start to research and develop the PC/ASA alloy of halogen-free flameproof.Halogen-free flame retardants mainly has
Phosphorus flame retardant (triphenyl phosphate, bisphenol-A bis phosphoric acid diphenyl ester etc.), silicon-series five-retardant (aminomethyl phenyl
Siloxanes, inorganic silicon etc.), sulfur-bearing fire retardant (two lauseto neu sulfonate) etc..Current halogen-free flameproof
PC/ASA alloy there is problems of cannot be avoided molten drop phenomenon, and fire-retardant rank is the highest.
Summary of the invention
The technical problem to be solved is for above-mentioned deficiency present in prior art, it is provided that
A kind of expansion type flame-retarding strengthens ASA/PC alloy and preparation method thereof, uses the intumescent resistance of halogen-free flameproof
ASA/PC alloy is modified by combustion agent, and the fire-retardant rank of gained ASA/PC alloy is high, and during burning, smog is released
High-volume few, poisonous and corrosive gas will not be produced, and can prevent molten drop from generating.
For solving above-mentioned technical problem, present invention provide the technical scheme that
Thering is provided a kind of expansion type flame-retarding to strengthen ASA/PC alloy, this alloy is by the raw material group of following mass parts
Becoming: PC 50-60 part, ASA 10-20 part, toughener 3-8 part, compatilizer 4-7 part, intumescent hinders
Combustion agent 10-20 part, fire retarding synergist 2-4 part, lubricant 0.01-0.5 part, antioxidant 0.1-0.5
Part；
Described expansion type flame retardant is by the APP (APP) of surface modification and MCA
(MCA) 1-4:1 is mixed to get in mass ratio；
The APP preparation method of described surface modification is: by APP, silane coupler and solvent
Mixing, stirs 1-2h at 60-80 DEG C, and sucking filtration also dries the APP obtaining surface modification；
P in described MCA2O5Mass content is 10-20%；
Described fire retarding synergist is cetyl trimethylammonium bromide modified montmorillonoid (1631-MMT).
Preferably, described APP and silane coupler mass volume ratio are 100g/10-20mL.
Expansion type flame retardant used by the present invention is by APP (polyphosphoric acid amine) and MCA (melamine cyanurea
Hydrochlorate) mix, it is synergistic fire retardant.APP carries out surface modification before using, because it is a kind of
The lyophilic powder particle of micro-meter scale, deposits in and easily absorbs the moisture in air in air, cause gathering
Close the P of state2O5Hydrolysis, in order to make APP play fire retardation stably and lastingly, the present invention utilizes silane
Coupling agent carries out surface modification to it, reduces its hygroscopicity, improves hydrolytic resistance.APP in the present invention
As acid source, MCA is as source of the gas, and APP is heated point at a temperature of 100-200 DEG C in combustion
Solve to generate and there is high dehydrated phosphoric acid and pyrophosphoric acid, and react generation phosphate ester, resistance with charcoal source (PC)
Combustion system melts in esterification process, and APP generates H 100-200 DEG C of degraded2O and NH3, at high temperature
Under the effect of flame, dehydration forms a certain amount of coke three dimensional structure, and meanwhile, source of the gas MCA is heated
Distillation produces non-flammable gases (steam, ammonia, carbon dioxide etc.), makes molten system foam,
Rear formation expands protection layer of charcoal, plays fire-retardant, heat insulation, the purpose of anoxybiotic, and smog burst size is few, no
Toxic gas can be produced.In the present invention, fire retarding synergist uses organic modification montmonrillonite (OMMT),
Being specially cetyl trimethylammonium bromide modified montmorillonoid, general addition is less than 5%, appropriate
As fire retarding synergist, organic modification montmonrillonite can promote that fire retardant is tied to form charcoal, improve the graphitization of layer of charcoal
Degree, improves layer of charcoal quality and intensity, thus improves the fire resistance of material.
Preferably, the described APP degree of polymerization is 50-200.
Preferably, described silane coupler is tetramethoxy-silicane；Described solvent is dehydrated alcohol.
By such scheme, described PC weight average molecular weight is 3-5 ten thousand, and density is 1.18-1.20g/cm3。
By such scheme, described ASA is 115 DEG C at the softening point of 50 DEG C/hr.
By such scheme, described toughener is Mitsubishi beautiful sun silicon system toughener S-2001 or MBS tree
Fat (methyl methacrylate (M), butadiene (B) and the terpolymer of styrene (S)).
Organosilicon S-2001 is core-shell type structure, and shell is methyl methacrylate, and core is organosilicon and acrylic acid
Ester, can be effectively reduced the internal stress of resin matrix, increases the toughness of PC/ASA alloy material.
MBS resin and PC and ASA have the good compatibility, can improve the compatibility of alloy, reduce
Internal stress.
By such scheme, described compatilizer is SMA(SMA).SMA
In anhydride can with PC occur ester exchange, so the addition of SMA can substantially reduce biphase boundary
Surface tension, makes dispersed phase particles refinement in PC/ASA alloy, reaches the effect of increase-volume.
By such scheme, described lubricant is the double stearic amide of vinyl or ethylene bis stearamide.
By such scheme, described antioxidant is 4,4 '-thiobis (the 6-tert-butyl group-3-methylphenol) or double (2,4-
Di-tert-butyl-phenyl) pentaerythritol diphosphites.
The present invention also provides for above-mentioned expansion type flame-retarding and strengthens the preparation method of ASA/PC alloy, particularly as follows:
Weigh raw material by proportioning, then raw material is put into double screw extruder dog-house, control double screw extruder
Rotating speed be 300-500r/min carry out extrusion and pelletize, prepare expansion type flame-retarding strengthen ASA/PC
Alloy.
By such scheme, the temperature in each district of described double screw extruder is: district's temperature is 220-230 DEG C,
Two district's temperature are 220-230 DEG C, and three district's temperature are 220-230 DEG C, and four district's temperature are 230-240 DEG C,
Five district's temperature are 230-240 DEG C, and six district's temperature are 230-240 DEG C, and seven district's temperature are 235-245 DEG C.
The beneficial effects of the present invention is:
Compared with prior art, the present invention uses the expansion type flame retardant of halogen-free flameproof to ASA/PC alloy
Being modified, the fire-retardant rank of gained ASA/PC alloy is high, and (fire-retardant rank reaches the V-0 level of UL94 standard
Above), during burning, smog burst size is few, will not produce poisonous and corrosive gas, and can prevent molten drop
Generate, and after addition expansion type flame retardant, the melt index of alloy is 18-38 g/10min, 250 DEG C
2.16Kg, is the environmentally friendly PC/ASA alloy of a kind of superior flame retardant property.It addition, present invention choosing
Toughener and compatilizer etc. improve the processability of alloy and release property (hot strength reach
50.5-65.4MPa, elongation at break reaches 80.3-92.5%, and bending strength reaches 62.4-80.4MPa, impact
Intensity reaches 45.2-68.2KJ/m2), it is thus achieved that there is the highly effective flame-retardant alloy material of good mechanical properties.
Detailed description of the invention
For making those skilled in the art be more fully understood that technical scheme, below in conjunction with embodiment
The present invention is described in further detail.
Embodiment 1
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%, Jinan Taixing Fine Chemicals Co., ltd, model HT-211) mixture that forms, wherein surface
Modified APP 10 parts, melamine cyanurate 10 parts, antioxidant is 4,4 '-thiobis (tertiary fourth of 6-
Base-3-methylphenol), compatilizer is SMA, and fire retarding synergist is that cetyl trimethylammonium bromide is modified
Montmorillonite.
The preparation method of the APP of surface modification used by the present embodiment is: the poly-phosphorus of precise 100g
Acid ammonium (degree of polymerization 150), 20mL silane coupler tetramethoxy-silicane and 150mL dehydrated alcohol add
In 250mL there-necked flask, at a temperature of 60-80 DEG C, stir 1-2h, subsequently sucking filtration being placed in by product
Baking oven is dried to constant weight and obtain the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 230 DEG C, and two district's temperature are 230 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 240 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 245 DEG C, control twin-screw extrusion
The rotating speed of machine is that 400r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 2
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent is MBS resin.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 10 parts, melamine cyanurate 10 parts,
Antioxidant is double (2,4-di-tert-butyl-phenyl) pentaerythritol diphosphites, and compatilizer is SMA, resistance
Combustion synergist is cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 220 DEG C, and two district's temperature are 220 DEG C, and three district's temperature are 220 DEG C, and four district's temperature are 230 DEG C,
Five district's temperature are 230 DEG C, and six district's temperature are 230 DEG C, and seven district's temperature are 235 DEG C, control twin-screw extrusion
The rotating speed of machine is that 400r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 3
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 15 parts, melamine cyanurate 5 parts,
Antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire retarding synergist
For cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 230 DEG C, and two district's temperature are 230 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 230 DEG C,
Five district's temperature are 230 DEG C, and six district's temperature are 230 DEG C, and seven district's temperature are 235 DEG C, control twin-screw extrusion
The rotating speed of machine is that 400r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 4
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 16 parts, melamine cyanurate 4 parts,
Antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire retarding synergist
For cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 220 DEG C, and two district's temperature are 220 DEG C, and three district's temperature are 220 DEG C, and four district's temperature are 230 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 245 DEG C, control twin-screw extrusion
The rotating speed of machine is that 500r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 5
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent is MBS resin.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 16 parts, melamine cyanurate 4 parts,
Antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire retarding synergist
For cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 230 DEG C, and two district's temperature are 230 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 240 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 245 DEG C, control twin-screw extrusion
The rotating speed of machine is that 400r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 6
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 5 parts, melamine cyanurate 5 parts,
Antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire retarding synergist
For cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 230 DEG C, and two district's temperature are 230 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 240 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 245 DEG C, control twin-screw extrusion
The rotating speed of machine is that 400r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 7
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 7.5 parts, melamine cyanurate 2.5
Part, antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire-retardant association
Effect agent is cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 220 DEG C, and two district's temperature are 220 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 240 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 240 DEG C, control twin-screw extrusion
The rotating speed of machine is that 300r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 8
A kind of expansion type flame-retarding strengthens PC/ASA alloy, and its formula composition is following (mass parts):
Described PC weight average molecular weight is 40,000, and density is 1.18g/cm3, described ASA is at 50 DEG C/hr
Softening point be 115 DEG C, toughening agent be Mitsubishi beautiful sun silicon system toughener S-2001.
Expansion type flame retardant is by the APP (degree of polymerization is 150) and MCA (P of surface modification2O5Content is
20%) mixture formed, the wherein APP of surface modification 8 parts, melamine cyanurate 2 parts,
Antioxidant is 4, and 4 '-thiobis (the 6-tert-butyl group-3-methylphenol), compatilizer is SMA, fire retarding synergist
For cetyl trimethylammonium bromide modified montmorillonoid.
Method similar to Example 1 is used to prepare the APP of surface modification.
It is as follows that expansion type flame-retarding strengthens PC/ASA alloy preparation technology: more than precise each component raw material,
Then raw material puts into double screw extruder dog-house, and the temperature in each district of double screw extruder is: district's temperature
Degree is 230 DEG C, and two district's temperature are 230 DEG C, and three district's temperature are 230 DEG C, and four district's temperature are 240 DEG C,
Five district's temperature are 240 DEG C, and six district's temperature are 240 DEG C, and seven district's temperature are 245 DEG C, control twin-screw extrusion
The rotating speed of machine is that 300r/min carries out extrusion pelletize, prepares expansion type flame-retarding and strengthens ASA/PC conjunction
Gold.
Embodiment 9
The performance that embodiment 1-8 gained expansion type flame-retarding strengthens ASA/PC alloy is tested, test
Result is as shown in table 1:
The performance test results of table 1 embodiment 1-8 gained PC/ASA alloy
As it can be seen from table 1 along with the increase of flame retardant agent content, the limit oxygen of gained PC/ASA alloy
Index gradually rise (and when the addition of fire retardant is 20 parts, and wherein APP Yu MCA mass ratio is 4:
When 1, flame retardant effect is best), fire-retardant rank reaches more than the V-0 level of UL94 standard, and in combustion
Without molten drop phenomenon during burning.The stretching that the expansion type flame-retarding of the present invention strengthens PC/ASA alloy material is strong
Degree, bending strength, impact strength etc. all reach the use requirement of PC/ASA alloy, have the highest reality
By value.
Obviously, above-described embodiment is only used to made example is clearly described, and not to enforcement
The restriction of mode.For those of ordinary skill in the field, the most also may be used
To make change or the variation of other multi-forms.Here without also cannot to all of embodiment with
Exhaustive.And the obvious change therefore amplified or variation are still in the protection domain of the invention
Within.
Claims (9)
1. an expansion type flame-retarding strengthens ASA/PC alloy, it is characterised in that this alloy is by following quality
The raw material composition of part: PC 50-60 part, ASA 10-20 part, toughener 3-8 part, compatilizer 4-7 part,
Expansion type flame retardant 10-20 part, fire retarding synergist 2-4 part, lubricant 0.01-0.5 part, antioxidant
0.1-0.5 part；
Described expansion type flame retardant is pressed quality by APP and the MCA of surface modification
It is mixed to get than 1-4:1；
The preparation method of the APP of described surface modification is: by APP, silane coupler with molten
Agent mixes, and stirs 1-2h at 60-80 DEG C, and sucking filtration also dries the APP obtaining surface modification；
P in described MCA2O5Mass content is 10-20%；
Described fire retarding synergist is cetyl trimethylammonium bromide modified montmorillonoid.
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described PC weight average molecular weight is 3-5 ten thousand, and density is 1.18-1.20g/cm3。
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described ASA is 115 DEG C at the softening point of 50 DEG C/hr.
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described toughener is Mitsubishi beautiful sun silicon system toughener S-2001 or MBS resin.
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described compatilizer is SMA.
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described lubricant is the double stearic amide of vinyl or ethylene bis stearamide.
Expansion type flame-retarding the most according to claim 1 strengthens ASA/PC alloy, it is characterised in that
Described antioxidant is 4,4 '-thiobis (the 6-tert-butyl group-3-methylphenol) or double (2,4-di-tert-butyl-phenyl)
Pentaerythritol diphosphites.
8. one kind strengthens ASA/PC alloy according to the arbitrary described expansion type flame-retarding of claim 1-7
Preparation method, it is characterised in that: weigh raw material by proportioning, then raw material is put into double screw extruder and throws
Material mouth, the rotating speed controlling double screw extruder is that 300-500r/min carries out extrusion pelletize, is prepared into
ASA/PC alloy is strengthened to expansion type flame-retarding.
Expansion type flame-retarding the most according to claim 8 strengthens the preparation method of ASA/PC alloy,
The temperature that it is characterized in that each district of described double screw extruder is: district's temperature is 220-230 DEG C, 2nd district
Temperature is 220-230 DEG C, and three district's temperature are 220-230 DEG C, and four district's temperature are 230-240 DEG C, 5th district
Temperature is 230-240 DEG C, and six district's temperature are 230-240 DEG C, and seven district's temperature are 235-245 DEG C.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610347441.8A CN106009581A (en) | 2016-05-24 | 2016-05-24 | Intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and preparation method thereof |
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| CN201610347441.8A CN106009581A (en) | 2016-05-24 | 2016-05-24 | Intumescent flame retardant enhanced ASA/PC (acrylonitrile styrene acrylate/poly carbonate) alloy and preparation method thereof |
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| CN107189393A (en) * | 2017-05-24 | 2017-09-22 | 武汉理工大学 | A kind of halogen-free flameproof enhancing PC/AES alloys and preparation method thereof |
| CN107418177A (en) * | 2017-05-24 | 2017-12-01 | 武汉理工大学 | A kind of high-toughness halogen-free flame enhancing PC/ASA alloys and preparation method thereof |
| CN112646341A (en) * | 2020-11-27 | 2021-04-13 | 张家港大塚化学有限公司 | Preparation process of halogen-free flame-retardant, antistatic, high-wear-resistance and high-strength PC/ASA alloy |
| CN116814063A (en) * | 2023-06-29 | 2023-09-29 | 杭州康诚汽车附件有限公司 | Flame-retardant semi-rigid polyurethane foam and preparation method thereof |
| CN117624818A (en) * | 2023-12-01 | 2024-03-01 | 滨州永鸿新材料科技有限公司 | Preparation method of impact-resistant high-gloss ASA resin |
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| CN117624818A (en) * | 2023-12-01 | 2024-03-01 | 滨州永鸿新材料科技有限公司 | Preparation method of impact-resistant high-gloss ASA resin |
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