CN108676282A - A kind of environment friendly flame-retardant PVC/ABS alloys and preparation method thereof - Google Patents
A kind of environment friendly flame-retardant PVC/ABS alloys and preparation method thereof Download PDFInfo
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- CN108676282A CN108676282A CN201810477938.0A CN201810477938A CN108676282A CN 108676282 A CN108676282 A CN 108676282A CN 201810477938 A CN201810477938 A CN 201810477938A CN 108676282 A CN108676282 A CN 108676282A
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—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 a halogen; Compositions of derivatives of such polymers
- C08L27/02—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—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 a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
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- C08L2201/22—Halogen free composition
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Abstract
The present invention relates to a kind of environment friendly flame-retardant PVC/ABS alloys and preparation method thereof, and raw material is grouped as by the group of following mass parts：30 80 parts of polyvinyl chloride resin, 20 70 parts of ABS resin, 2 10 parts of plasticizer, 18 parts of heat stabilizer, 15 parts of antioxidant, 10 20 parts of Halogen compound flame retardant, 3 10 parts of smoke suppressant, 15 parts of lubrication dispersing agent.The PVC/ABS alloys that the present invention obtains both had many advantages, such as ABS resin impact resistance, it is low temperature resistant, be easy to processing and forming, have many advantages, such as again the anti-flammability of PVC and it is resistant to chemical etching, wear-resisting, insulation, it is cheap, the tensile strength of alloy material is up to 45~49Mpa, bending strength is up to 68~73Mpa, Izod notched impact strength is up to 680~725J/m, and flame retardant property can reach UL94 V0, and oxygen index (OI) is 31~33, smoke density grade is less than 70, meets environmental requirement.
Description
Technical field
The invention belongs to technical field of polymer composite materials, it is related to a kind of environment friendly flame-retardant PVC/ABS alloys and its system
Preparation Method.
Background technology
PVC is a kind of common thermoplastic resin, is had a wide range of applications in daily life.From the point of view of world wide,
PVC is only second to polyethylene as the second largest general-purpose plastics, consumption figure.PVC have good mechanical property, fire-retardant, chemically-resistant is rotten
The excellent comprehensive performance such as erosion, wear-resisting, insulation, and cheap, raw material sources enrich, therefore it is widely used in construction material
And other field.But the shortcomings of PVC there is also thermal stability poor, poor toughness, poor processabilities.Therefore, researcher is to PVC
A large amount of modification is carried out to improve its thermal stability and erosion-resisting characteristics, common method of modifying is physical blending process.ABS resin
With impact flexibility outstanding, and lustrous surface and processing forming are good, are a kind of a very wide range of engineering plastics of purposes, but
Heat resistance and weatherability are poor.It is respective excellent that the PVC/ABS plastic alloys that PVC is blended with ABS can then have PVC and ABS concurrently
Point has preferable weatherability and comprehensive physical performance, anti-flammability and comparatively ideal cost performance.However existing PVC/ABS
Alloy is generally prepared using extruder by physics melt-blending process, and that there are exhaust gas volumns is big, thermal stability is poor, poor fluidity, note
It is easy phenomena such as frictional heat causes degradation to be turned to be yellow when modeling, seriously affects product appearance and performance.
The PVC/ABS alloys of fire protection flame retarding rank mainly use PVC granule material, bromide fire retardant, antimony oxide at present
It is raw material with ABS resin, is granulated after mixing by double screw extruder melting extrusion.
Since PVC granule material adds plasticizer etc. by being granulated by PVC powder, cause to be made than directly with PVC granule material
It is of high cost with PVC powder；In addition bromide fire retardant itself not environmentally, and the alloy of brominated antimony flame-retardant system burning when smoke
Amount is too big, once fire occurs, will generate serious smoke harm.
In recent years, the development of inorganic crystal whisker has become chemistry, material science, crystallography, geology even mineralogy etc.
One of research hotspot of scientist of every field.Whisker is a kind of high intensity, high-modulus, heat-resist advanced composite material (ACM)
Reinforcing agent, almost without internal flaw (crystal boundary, dislocation and hole) compared with common crystal material.
Alkali magnesium sulfate (MOS) whisker is in the seventies in last century just advantageously, it has been found that application study is then ability at the beginning of the nineties
Gradually have developed.Alkali magnesium sulfate crystal whisker has the superior functions such as flame-retardant smoke inhibition, reinforcing material mechanical property, is commonly used for filling
Material makes an addition in the materials such as plastics, rubber, papermaking, coating.But since itself has stronger polarity and hydrophily, crystal grain
It is intended to secondary aggregation, it is difficult to evenly dispersed in nonpolar polymer.Therefore, polymer is often resulted in filled polymer
Other performance (such as mechanical property and processing performance) severe exacerbations.
The present invention is modified processing using surface modifier to alkali magnesium sulfate crystal whisker, then by modified alkali formula sulphur
Sour magnesium whisker is mixed to get Halogen compounding flame retardant in proportion with bisphenol-A-bis- (diphenyl phosphates) (BDP), is added to
In PVC/ABS alloy systems, and under the cooperation of the components such as heat stabilizer, obtain excellent fireproof performance, good mechanical properties
PVC/ABS alloy materials.
Invention content
The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide a kind of environmental protection resistance
Combustion type PVC/ABS alloys and preparation method thereof, the PVC/ABS alloys are fire-retardant add with modified alkali magnesium sulfate crystal whisker and BDP
Add agent, while improving alloy material flame retardant property, can also improve the mechanical property of alloy, gained PVC/ABS alloys were both
Have many advantages, such as ABS resin impact resistance, it is low temperature resistant, be easy to processing and forming, and the anti-flammability with PVC and resistant to chemical etching, resistance to
The advantages that grinding, insulating, is cheap, is a kind of high performance alloy material, can be applied to electronics, instrument, automobile, household electric
The industries such as device, cable jacket.
In order to solve the above technical problems, technical solution provided by the invention is：
A kind of environment friendly flame-retardant PVC/ABS alloys are improved, raw material is grouped as by the group of following mass parts：
By said program, the Halogen compound flame retardant is by being modified bis- (the phosphoric acid hexichol of alkali magnesium sulfate crystal whisker and bisphenol-A-
Ester) (BDP) in mass ratio 3：2 are mixed to get；
The preparation method of the wherein described modified alkali magnesium sulfate crystal whisker is：Alkali magnesium sulfate crystal whisker and deionized water are mixed
It closes, is heated to 60~90 DEG C, is uniformly mixing to obtain whisker suspension, surface modifier is then added, continue to stir 30min, so
Postcooling to room temperature, then it is washed, be dried to obtain modified alkali magnesium sulfate crystal whisker.The hydrophobic group of surfactant is in alkali formula sulphur
Sour magnesium whisker surface is coated, and keeps whisker and high-molecular organic material compatibility good.
By said program, the surface modifier is Silane coupling agent KH550, KH570, KH590, odium stearate, tristearin
Sour zinc, one kind in lauric acid, surface modifier addition are the 2% of alkali magnesium sulfate crystal whisker quality.
The alkali magnesium sulfate crystal whisker is 152 types, 153 types or 138 type alkali magnesium sulfate crystal whiskers.Preferably whisker length is
60~90 μm, whisker draw ratio is 80~300.
By said program, the polyvinyl chloride resin is Hard PVC, and the degree of polymerization is 500~1000.
By said program, the plasticizer is DOP (dioctyl phthalate).
By said program, the heat stabilizer is Ca-Zn composite heat stabilizer.
By said program, the antioxidant is antioxidant 1010.
By said program, the smoke suppressant is molybdenum trioxide or ammonium octamolybdate.
By said program, the lubrication dispersing agent is PE powder, grain size≤5 μm.
The invention also includes the preparation methods of above-mentioned environment friendly flame-retardant PVC/ABS alloys, are as follows：
1) first each component is weighed according to the ratio, then by polyvinyl chloride resin and heat stabilizer, plasticizer, lubrication dispersing agent, antioxygen
Agent is placed in high-speed mixer, is stirred 10~20 minutes at 80~100 DEG C, and be cooled to room temperature, and is then compounded Halogen and is hindered
Combustion agent and smoke suppressant are added in high-speed mixer, are stirred 5~10 minutes at normal temperatures, are obtained premix；
2) premix obtained by step 1) is added from the main spout of double screw extruder, ABS resin passes through side feeder
It is fed from the stage casing of double screw extruder, squeezes out to obtain environment friendly flame-retardant PVC/ABS alloys by double screw extruder.
By said program, the step 2) double screw extruder is respectively 160 DEG C from head to extrusion temperature of each section,
165 DEG C, 165 DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C.
Organic phosphorus flame retardant BDP has good compatibility with PVC/ABS alloy systems, while BDP is that liquid phase is fire-retardant
Agent has good plasticization for alloy, can improve the processing performance of alloy material.The master of the fire-retardant enhancing alloys of BDP
It wants mechanism to have that gas phase is fire-retardant with condensed phase simultaneously, can improve the thermal degradation temperature of alloy second stage PVC phases, while
Remaining carbon increases at 800 DEG C.BDP is heated to generate PO free radicals, it can capture H and HO free radicals, to inhibit to fire
The progress for burning reaction, reaches the fire-retardant purpose of gas phase.Alkali magnesium sulfate crystal whisker after organically-modified with high polymer alloy matrix phase
Capacitive enhance, by pyrolytic absorb the part combustion heat, be dehydrated formation vapor can then dilute imflammable gas and
The concentration of oxygen inhibits the progress of burning.And the MgO coatings generated in alloy material surface after pyrolytic are good resistance to
Fiery material has great surface area, can absorb cigarette and combustible, makes the more difficult progress of surface burning, and be conducive to surface charcoal
The formation for changing layer, delays heat and oxygen to enter alloy material intrinsic silicon, reduces the generation of combustible, and the heat for enhancing alloy is steady
It is qualitative.The present invention utilizes the fire-retardant Reinforced PVC/ABS alloy of organic phosphorus flame retardant BDP gas phases, while promoting the shape of organic layer of charcoal
At, utilize alkali magnesium sulfate crystal whisker inhibit strand warm-up movement, promote surface layer of charcoal stabilization, on the other hand due to organophosphor
Phosphate in flame retardant BDP can decompose generation polyphosphoric acid after being heated, the acid of generation can form melting under high temperature action
Viscous skin, under the synergistic effect of alkali magnesium sulfate crystal whisker, shape after viscous skin and alkali magnesium sulfate crystal whisker pyrolytic
The protective layer formed at MgO coatings can prevent layer of charcoal high-temperature oxydation, to reach the mesh for delaying alloy material to burn or aoxidize
, to obtain a kind of PVC/ABS alloy materials of environment friendly flame-retardant.
The beneficial effects of the present invention are：1, the present invention added in production technology modified alkali magnesium sulfate crystal whisker with
The Halogen compounding flame retardant that BDP is formed in proportion is prepared PVC/ABS alloys by using double screw extruder, is being realized
While fire-retardant, it can also improve the mechanical property of alloy, utmostly realize energy-saving and emission-reduction；2, the PVC/ that the present invention obtains
ABS alloy not only had many advantages, such as ABS resin impact resistance, it is low temperature resistant, be easy to processing and forming, but also anti-flammability and resistance toization with PVC
Learn burn into it is wear-resisting, insulation, it is cheap the advantages that, for the tensile strength of alloy material up to 45~49Mpa, bending strength is up to 68
~73Mpa, Izod notched impact strength are up to 680~725J/m, and flame retardant property can reach UL94-V0, and oxygen index (OI) is 31
~33, smoke density grade is less than 70, meets environmental requirement.
Specific implementation mode
To make those skilled in the art more fully understand technical scheme of the present invention, the present invention is made with reference to embodiment
It is described in further detail.
Ca-Zn composite heat stabilizer used in the embodiment of the present invention is the HKCZ- of Guangzhou Hui Ke Chemical Co., Ltd.s production
177R type Ca-Zn composite heat stabilizers.
Embodiment 1
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 152 type alkali magnesium sulfate crystal whiskers (70 μ of whisker length of 30g
M, whisker draw ratio 100) it is put into the beaker for filling 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, is used
Electric mixer stirs evenly dispersed at suspension, mixing speed 600r/min, the addition alkali formula sulfuric acid after constant temperature to whisker
The Silane coupling agent KH550 of magnesium whisker mass fraction 2% continues to stir 30min, then takes out beaker, static cold at room temperature
But, it is then washed with deionized, filters, it is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 500) and Ca Zn composite heat is steady
Determine agent, DOP, PE powder, antioxidant 1010 are placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And be cooled to room temperature, then Halogen compound flame retardant and molybdenum trioxide are added in high-speed mixer, at normal temperatures with 750r/
The rate high-speed stirred of min obtains premix for 5-10 minutes, then premix is added from the main spout of double screw extruder,
ABS resin is fed by side feeder from the stage casing of double screw extruder, and extruder temperature is from head to extrusion temperature of each section
Respectively 160 DEG C, 165 DEG C, 165 DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material screw rod shearing, be kneaded and
The lower fully fusion of conveying, finally after extrusion, tie rod, cooling, pelletizing, is made pellet, obtains environmental protection flame retardant PVC/ABS and close
Golden material, environmental protection flame retardant PVC/ABS alloy material the performance test results manufactured in the present embodiment are shown in Table 1.
Embodiment 2
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 153 type alkali magnesium sulfate crystal whiskers (80 μ of whisker length of 30g
M, whisker draw ratio 150) be put into title have in the beaker of 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, use
Electric mixer stirs, after constant temperature after addition alkali magnesium sulfate crystal whisker mass fraction 2% evenly dispersed at suspension to whisker
Odium stearate continues to stir 30min, then takes out beaker, and static cooling, is then washed with deionized at room temperature, filtering,
It is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 500) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and molybdenum trioxide are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder temperature is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, and 165
DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, most passes through afterwards
After crossing extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, it is manufactured in the present embodiment
Environmental protection flame retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Embodiment 3
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 152 type alkali magnesium sulfate crystal whiskers (60 μ of whisker length of 30g
M, whisker draw ratio 300) be put into title have in the beaker of 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, use
Electric mixer stirs, after constant temperature after addition alkali magnesium sulfate crystal whisker mass fraction 2% evenly dispersed at suspension to whisker
Silane coupling agent KH550 continues to stir 30min, then takes out beaker, static cooling, is then washed with deionized water at room temperature
It washs, filters, it is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 800) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, 165 DEG C,
170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, finally passes through
After extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, ring manufactured in the present embodiment
Environment friendly flame-retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Embodiment 4
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 138 type alkali magnesium sulfate crystal whiskers (90 μ of whisker length of 30g
M, whisker draw ratio 80) be put into title have in the beaker of 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, electricity consumption
Dynamic blender stirs, after constant temperature after the silicon of addition alkali magnesium sulfate crystal whisker mass fraction 2% evenly dispersed at suspension to whisker
Alkane coupling agent KH550 continues to stir 30min, then takes out beaker, and static cooling, is then washed with deionized at room temperature,
Filtering, it is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 1000) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder temperature is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, and 165
DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, most passes through afterwards
After crossing extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, it is manufactured in the present embodiment
Environmental protection flame retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Embodiment 5
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 138 type alkali magnesium sulfate crystal whiskers (70 μ of whisker length of 30g
M, whisker draw ratio 180) be put into title have in the beaker of 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, use
Electric mixer stirs, after constant temperature after addition alkali magnesium sulfate crystal whisker mass fraction 2% evenly dispersed at suspension to whisker
Silane coupling agent KH550 continues to stir 30min, then takes out beaker, static cooling, is then washed with deionized water at room temperature
It washs, filters, it is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 600) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder temperature is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, and 165
DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, most passes through afterwards
After crossing extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, it is manufactured in the present embodiment
Environmental protection flame retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Embodiment 6
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in the present embodiment is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：2 mix
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is：Weigh 153 type alkali magnesium sulfate crystal whiskers (60 μ of whisker length of 30g
M, whisker draw ratio 160) be put into title have in the beaker of 1000mL deionized waters, beaker is placed in 80 DEG C of constant temperature water baths, use
Electric mixer stirs, after constant temperature after addition alkali magnesium sulfate crystal whisker mass fraction 2% evenly dispersed at suspension to whisker
Lauric acid continues to stir 30min, then takes out beaker, and static cooling, is then washed with deionized at room temperature, filters, and does
It is dry, obtain modified alkali magnesium sulfate crystal whisker.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 600) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder temperature is respectively 160 DEG C from head to extrusion temperature, 165 DEG C, 165 DEG C,
170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, finally passes through
After extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, ring manufactured in the present embodiment
Environment friendly flame-retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Comparative example 1
PVC/ABS alloys are prepared, formula composition is as follows：
PVC/ABS alloy preparation methods are as follows：By polyvinyl chloride resin (degree of polymerization 600) and Ca-Zn composite heat stabilizer, DOP, PE
Powder, antioxidant 1010 are placed in high-speed mixer, are pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature, and are cooled to often
Temperature.Alkali magnesium sulfate crystal whisker and ammonium octamolybdate are added in high-speed mixer, high-speed stirred 5-10 minutes at normal temperatures, obtained
Premix.Premix is added from the main spout of double screw extruder, ABS resin is by side feeder from double screw extruder
Stage casing feeding, extruder temperature is respectively 160 DEG C from head to extrusion temperature, 165 DEG C, 165 DEG C, 170 DEG C, 170 DEG C,
175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, finally by extrusion, tie rod, cold
But, after pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, environmental protection flame retardant PVC/ prepared by this comparative example
ABS alloy material the performance test results are shown in Table 1.
Comparative example 2
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in this comparative example is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 3：1 mixes
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is in the same manner as in Example 3.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 800) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, 165 DEG C,
170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, finally passes through
After extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, ring prepared by this comparative example
Environment friendly flame-retardant PVC/ABS alloy material the performance test results are shown in Table 1.
Comparative example 3
Environment friendly flame-retardant PVC/ABS alloys are prepared, formula composition is as follows：
Halogen compound flame retardant used in this comparative example is by being modified alkali magnesium sulfate crystal whisker and BDP in mass ratio 1：1 mixes
It arrives, wherein modified alkali magnesium sulfate crystal whisker preparation method is in the same manner as in Example 3.
Environment friendly flame-retardant PVC/ABS alloy preparation methods are as follows：Polyvinyl chloride resin (degree of polymerization 800) and Ca Zn composite heat is steady
Determining agent, DOP, PE powder, antioxidant 1010 is placed in high-speed mixer, pre-processed 10-20 minutes under 80-100 DEG C of environment of temperature,
And it is cooled to room temperature.Halogen compound flame retardant and ammonium octamolybdate are added in high-speed mixer, at normal temperatures high-speed stirred 5-
10 minutes, obtain premix.By premix from the main spout of double screw extruder be added, ABS resin by side feeder from
The stage casing of double screw extruder is fed, and extruder is respectively 160 DEG C from head to extrusion temperature of each section, 165 DEG C, 165 DEG C,
170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C, material fully fuses under the shearing, mixing and conveying of screw rod, finally passes through
After extrusion, tie rod, cooling, pelletizing, pellet is made, obtains environmental protection flame retardant PVC/ABS alloy materials, ring prepared by this comparative example
Environment friendly flame-retardant PVC/ABS alloy material the performance test results are shown in Table 1.
1 gained PVC/ABS alloy properties of 1 embodiment 1-6 of table and comparative example
By embodiment 3 in table 1 and comparative example 2,3 data comparison of comparative example it is found that as modified alkali magnesium sulfate crystal whisker and BDP
In mass ratio 3:1 and 1:It is little to the Effect on Mechanical Properties of alloy material when 1 proportioning, but flame retardant property has a degree of drop
It is low, therefore the optimum quality ratio of modified alkali magnesium sulfate crystal whisker and BDP compound flame retardants is 3:2.As seen from Table 1, modified alkali
Fire-retardant Reinforced PVC/the ABS alloy of Halogen compounding flame retardant of formula magnesium sulfate crystal whisker and BDP compositions, flame retardant effect is fine, obtains
Alloy material have preferable comprehensive mechanical property.With the increase of Halogen compounding flame retardant additive amount, alloy material
Flame retardant property and mechanical property all improve, and flame retardant rating reaches UL-94V-0.Comparative example 1 is by non-modified alkali formula
The Halogen compounding flame retardant of magnesium sulfate crystal whisker and BDP compositions is added in alloy material, and the mechanical property of PVC/ABS alloys has
Certain decline, the influence to flame retardant property are little.
Claims (10)
1. a kind of environment friendly flame-retardant PVC/ABS alloys, which is characterized in that its raw material is grouped as by the group of following mass parts：
2. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the Halogen compound flame retardant
By modified alkali magnesium sulfate crystal whisker and bisphenol-A-bis- (diphenyl phosphates) in mass ratio 3：2 are mixed to get；
The preparation method of the wherein described modified alkali magnesium sulfate crystal whisker is：Alkali magnesium sulfate crystal whisker is mixed with deionized water, is added
Heat is uniformly mixing to obtain whisker suspension, surface modifier is then added to 60~90 DEG C, continues to stir 30min, then cool down
To room temperature, then it is washed, be dried to obtain modified alkali magnesium sulfate crystal whisker.
3. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the surface modifier is silicon
Alkane coupling agent KH550, KH570, KH590, odium stearate, zinc stearate, one kind in lauric acid, surface modifier addition are
The 2% of alkali magnesium sulfate crystal whisker quality.
4. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the alkali magnesium sulfate crystal whisker
For 152 types, 153 types or 138 type alkali magnesium sulfate crystal whiskers, whisker length is 60~90 μm, and whisker draw ratio is 80~300.
5. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the polyvinyl chloride resin is poly- for hard
Vinyl chloride, the degree of polymerization are 500~1000.
6. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the plasticizer DOP；Institute
It is Ca-Zn composite heat stabilizer to state heat stabilizer.
7. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the antioxidant is antioxidant
1010；The smoke suppressant is molybdenum trioxide or ammonium octamolybdate.
8. environment friendly flame-retardant PVC/ABS alloys according to claim 1, which is characterized in that the lubrication dispersing agent is PE
Powder, grain size≤5 μm.
9. a kind of preparation method of any environment friendly flame-retardant PVC/ABS alloys of claim 1-8, which is characterized in that tool
Steps are as follows for body：
1) first each component is weighed according to the ratio, then sets polyvinyl chloride resin and heat stabilizer, plasticizer, lubrication dispersing agent, antioxidant
In high-speed mixer, stirred 10~20 minutes at 80~100 DEG C, and be cooled to room temperature, then by Halogen compound flame retardant
It is added in high-speed mixer with smoke suppressant, stirs 5~10 minutes at normal temperatures, obtain premix；
2) premix obtained by step 1) is added from the main spout of double screw extruder, ABS resin is by side feeder from double
The stage casing of screw extruder is fed, and squeezes out to obtain environment friendly flame-retardant PVC/ABS alloys by double screw extruder.
10. preparation method according to claim 9, which is characterized in that the step 2) double screw extruder from head to
Extrusion temperature of each section is respectively 160 DEG C, 165 DEG C, 165 DEG C, 170 DEG C, 170 DEG C, 175 DEG C, 172 DEG C, 170 DEG C.
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| CN110229445A (en) * | 2019-07-19 | 2019-09-13 | 苏州爱得华塑化有限公司 | A kind of low temperature wear resistant automobile interior material |
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| CN113583423A (en) * | 2021-08-17 | 2021-11-02 | 广州仕天材料科技有限公司 | High-fluidity flame-retardant PC/ABS composite material and preparation method thereof |
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