CN103146090A - Weather-resistant, flame retardant and impact-resistant polystyrene material, and preparation method - Google Patents
Weather-resistant, flame retardant and impact-resistant polystyrene material, and preparation method Download PDFInfo
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Abstract
The invention belongs to the field of polymer material modification and processing technology, and relates to a polystyrene material and a preparation method. The polystyrene material is composed by the components of, by weight, 100 parts of a polystyrene resin, 20-35 parts of a toughening agent, 8-25 parts of a filler, 1-2.8 parts of an antioxidant, 0.2-1.0 parts of a light stabilizer, 8-15 parts of a flame retardant, 1-6 parts of a flame retardant synergist and 2.5-4 parts of a lubricant. The weather-resistant, flame retardant and impact-resistant polystyrene material provided by the invention has relatively high impact strength, relatively high tensile strength, good weather resistance and flame retardance, easy processing, stable performance and long service life, so that the application scope of the polystyrene material is expanded, and the polystyrene material can replace engineering plastics in some fields, can be used for electrical and mechanical parts, and has broad market application prospects.
Description
Technical field
The invention belongs to macromolecule modified technical field and processing technique field, relate to a kind of polystyrene material and preparation method.
Background technology
Polystyrene resin is one of synthetic resins of widespread use, usually the goods of polystyrene have high transparency, transmittance can reach more than 90%, electrical insulation capability is good, easy coloring, processing fluidity is good, good rigidly and chemical resistance are good, cheap grade a bit, but there are many weak points in common polystyrene material, and is as low in fragility, shock strength, be prone to cracking, and fire-retardant fireproof is poor, weathering resistance is bad, heat-drawn wire is low etc., and these shortcomings have all limited the range of application of polystyrene greatly.
At present, the deficiency that exists in order to solve polystyrene material mainly adopts its method with blend rubber or other resin copolymerization to improve impelling strength, but greatly reduces rigidity simultaneously, and the increase cost.China CN 102115571A adopts high-impact polystyrene resin and toughner to increase shock strength, although shock strength improves, cost is too large, is unfavorable for industrialization.China CN 101835827A utilizes the combination of swelling agent and fire-resistant binder to overcome the polystyrene material inflammableness, but greatly reduces intensity and the toughness of material, and has increased the difficulty of forming materials.
Summary of the invention
Purpose of the present invention provides a kind of weather-resistance flame-retardant High Impact Polystyrene (HIPS) material and preparation method with regard to being in order to address the above problem.Weather-resistance flame-retardant High Impact Polystyrene (HIPS) material impact intensity provided by the invention and the advantage such as tensile strength is very large, fire-retardant fireproof good, weather-proof heat-drawn wire is high, stable performance, complete processing are simple.
The present invention is achieved through the following technical solutions above-mentioned purpose:
Weather-resistance flame-retardant High Impact Polystyrene (HIPS) material of the present invention is take polystyrene resin as basic raw material, and interpolation toughner, filler, oxidation inhibitor, photostabilizer, fire retardant, retardant synergist and lubricant process.
A kind of polystyrene material, made by the component that comprises following weight part:
100 parts of polystyrene resins,
20～35 parts of toughner,
8～25 parts of fillers,
1～2.8 part, oxidation inhibitor,
0.2～1.0 part of photostabilizer,
8～15 parts of fire retardants,
1～6 part of retardant synergist,
2.5～4 parts of lubricants.
Described toughner is selected from paracril, styrene-butadiene-styrene or terpolymer EP rubber.
Described filler is selected from nano-calcium carbonate, nano barium sulfate or nano titanium oxide.
The median size of described Nano filling is 40～70nm.
Described oxidation inhibitor is selected from N-cyclohexyl ethyl alcohol amine, thio-2 acid octadecyl ester, [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester, Tyox B or 1, in 1,3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane any two kinds.
Described photostabilizer is selected from tricresyl phosphite (1,2,2,6,6-pentamethyl-piperidines) ester, Whitfield's ointment-4-tertiary butyl phenyl ester or ESCALOL 567.
Described fire retardant is selected from one or more in melamine cyanurate, melamine phosphate, melamine pyrophosphate, trimeric cyanamide octamolybdate, melamine borate salt or coating polyphosphoric acid amine.
Described coated ammonium polyphosphate is selected from melamine-formaldehyde coated ammonium polyphosphate, epoxy resin coated ammonium polyphosphate, unsaturated polyester coated ammonium polyphosphate or polyurethane elastomer coated ammonium polyphosphate.
Described retardant synergist is selected from magnesium oxide, zinc borate, antimonous oxide or molybdenum oxide.
Described lubricant is selected from calcium stearate, Zinic stearas or fatty acid amide.
A kind of preparation method of above-mentioned polystyrene material, it comprises the following steps:
(1) 2.5～4 parts of 100 parts of polystyrene resins, 20～35 parts of toughner, 8～25 parts of fillers, 1～2.8 part, oxidation inhibitor, 0.2～1.0 part of photostabilizer, 8～15 parts of fire retardants, 1～6 part of retardant synergist, lubricant are taken in proportion be placed in reactor, mix 30～45min under 80～100 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 46～62mm after mixing, screw slenderness ratio is 32～40, rotating speed is 55～80r/min, and barrel segmentation temperature is: 160～180 ℃, 180～200 ℃, 200～220 ℃, and 185～205 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 80～90 ℃ dry 1.5～2.5 hours, 190～210 ℃ of injection temperatures, 60～80 ℃ of die temperatures, injection moulding pressure is at 8.5～11.6MPa, injection time is 15～30 seconds, and be 30～45 seconds cooling time, gets polystyrene plastic spare.
The present invention compared with prior art has following advantage and beneficial effect:
1, the high and good toughness of the weather-resistance flame-retardant High Impact Polystyrene (HIPS) strength of materials provided by the present invention, shock-resistant, good flame resistance, weather resistance is high, heat-drawn wire is high, can replace engineering plastics in some fields.
2, weather-resistance flame-retardant High Impact Polystyrene (HIPS) material provided by the present invention, many deficiencies of present polystyrene material have been solved, easy-formation processing, can be widely used in household electrical appliance, instrument, office equipment, auto parts, household utensils and wrapping material etc., production cost is reduced, enlarged the market application foreground of polystyrene material.
Embodiment
Below in conjunction with specific embodiment, weather-resistance flame-retardant High Impact Polystyrene (HIPS) material as above is described in further detail.
Adopt GB (GB) to measure the properties of material in embodiment, if no special instructions, the umber of component is parts by weight.
Embodiment 1
(1) take 100 parts of polystyrene resins, 24 parts of styrene-butadiene-styrenes, nano-calcium carbonate 8 parts of (median size is 60nm), 0.8 part of N-cyclohexyl ethyl alcohol amine and [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] 2.8 parts of 0.6 part of pentaerythritol ester, 0.5 part of ESCALOL 567,6 parts of epoxy resin coated ammonium polyphosphates and 4 parts of melamine cyanurates, 1 part of zinc borate, calcium stearates be placed in reactor, mixes 40min under 85 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 54mm after mixing, screw slenderness ratio is 35, and rotating speed is 65r/min, and barrel segmentation temperature is: 170～180 ℃, 190～200 ℃, 200～210 ℃, and 195～200 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 85 ℃ dry 2 hours, 200～205 ℃ of injection temperatures, 65～70 ℃ of die temperatures, injection moulding pressure is at 9.5MPa, injection time is 20 seconds, be 35 seconds cooling time, gets polystyrene plastic spare.
Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Embodiment 2
(1) take 100 parts of polystyrene resins, 20 parts of terpolymer EP rubbers, nano titanium oxide 15 parts of (median size is 50nm), 1.0 parts of thio-2 acid octadecyl esters and [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] 0.5 part of pentaerythritol ester, tricresyl phosphite (1,2,2,6,6-pentamethyl-piperidines) 2.5 parts of 0.2 part of ester, 5 parts of polyurethane elastomer coated ammonium polyphosphates and 3 parts of melamine cyanurates, 2 parts of antimonous oxides, Zinic stearass are placed in reactor, mix 35min under 90 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 46mm after mixing, screw slenderness ratio is 32, and rotating speed is 80r/min, and barrel segmentation temperature is: 165～175 ℃, 180～190 ℃, 200～210 ℃, and 190～195 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 80 ℃ dry 2.5 hours, 195～200 ℃ of injection temperatures, 60～65 ℃ of die temperatures, injection moulding pressure is at 8.5MPa, injection time is 15 seconds, be 30 seconds cooling time, gets polystyrene plastic spare.
Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Embodiment 3
(1) take 0.6 part of 100 parts of polystyrene resins, 32 parts of styrene-butadiene-styrenes, nano barium sulfate 25 parts (median size is 55nm), Tyox B and 1,1,3.5 parts of 0.4 part of butane of 3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base), 0.6 part of ESCALOL 567,6 parts of epoxy resin coated ammonium polyphosphates and 6 parts of trimeric cyanamide octamolybdates, 4 parts of molybdenum oxides, calcium stearates are placed in reactor, mix 45min under 80 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 62mm after mixing, screw slenderness ratio is 40, and rotating speed is 55r/min, and barrel segmentation temperature is: 160～170 ℃, 180～190 ℃, 205～215 ℃, and 185～190 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 85 ℃ dry 2 hours, 190～195 ℃ of injection temperatures, 70～75 ℃ of die temperatures, injection moulding pressure is at 10.5MPa, injection time is 20 seconds, be 40 seconds cooling time, gets polystyrene plastic spare.
Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Embodiment 4
(1) take 100 parts of polystyrene resins, 28 parts of paracrils, nano-calcium carbonate 20 parts of (median size is 60nm), 1.6 parts of N-cyclohexyl ethyl alcohol amine and [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] 4.0 parts of 1.2 parts of pentaerythritol esters, Whitfield's ointment-1.0 parts of 4-tertiary butyl phenyl esters, melamine-7 parts of formaldehyde coated ammonium polyphosphates and 5 parts of melamine borate salt, 6 parts of antimonous oxides, fatty acid amides be placed in reactor, mixes 30min under 100 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 54mm after mixing, screw slenderness ratio is 35, and rotating speed is 65r/min, and barrel segmentation temperature is: 170～180 ℃, 190～200 ℃, 205～215 ℃, and 200～205 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 90 ℃ dry 1.5 hours, 205～210 ℃ of injection temperatures, 75～80 ℃ of die temperatures, injection moulding pressure is at 11.6MPa, injection time is 25 seconds, be 45 seconds cooling time, gets polystyrene plastic spare.
Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Embodiment 5
(1) take 100 parts of polystyrene resins, 35 parts of styrene-butadiene-styrenes, nano barium sulfate 22 parts of (median size is 55nm), 1.2 parts of thio-2 acid octadecyl esters and [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] 3.2 parts of 0.6 part of pentaerythritol ester, 0.8 part of ESCALOL 567,9 parts of epoxy resin coated ammonium polyphosphates and 6 parts of melamine cyanurates, 5 parts of molybdenum oxides, fatty acid amides be placed in reactor, mixes 35min under 90 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 46mm after mixing, screw slenderness ratio is 32, and rotating speed is 80r/min, and barrel segmentation temperature is: 165～175 ℃, 185～195 ℃, 210～220 ℃, and 195～200 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 85 ℃ dry 2 hours, 200～205 ℃ of injection temperatures, 70～75 ℃ of die temperatures, injection moulding pressure is at 10.0MPa, injection time is 30 seconds, be 40 seconds cooling time, gets polystyrene plastic spare.
Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Comparative example 1
Do not add filler, all the other are with embodiment 3 steps.Take 0.6 part of 100 parts of polystyrene resin, 32 parts of styrene-butadiene-styrenes, Tyox B and 1,1,3.5 parts of 0.4 part of butane of 3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base), 0.6 part of ESCALOL 567,6 parts of epoxy resin coated ammonium polyphosphates and 6 parts of trimeric cyanamide octamolybdates, 4 parts of molybdenum oxides, calcium stearates are placed in reactor, mix 45min under 80 ℃, normal pressure; Mixed material is put into granulation in the screw extrusion press of diameter 62mm, screw slenderness ratio is 40, and rotating speed is 55r/min, and barrel segmentation temperature is: 160～170 ℃, 180～190 ℃, 205～215 ℃, and 185～190 ℃ of head temperatures; After granulation with pellet injection moulding after under 85 ℃ dry 2 hours, 190～195 ℃ of injection temperatures, 70～75 ℃ of die temperatures, injection moulding pressure is at 10.5MPa, injection time is 20 seconds, be 40 seconds cooling time, gets polystyrene plastic spare.Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Comparative example 2
Do not add oxidation inhibitor and photostabilizer, all the other are with embodiment 4 steps.Take 4.0 parts of 100 parts of polystyrene resins, 28 parts of paracrils, nano-calcium carbonate 20 portions of (median size is 60nm), melamine-7 parts of formaldehyde coated ammonium polyphosphates and 5 parts of melamine borate salt, 6 parts of antimonous oxides, fatty acid amide and be placed in reactor, mix 30min under 100 ℃, normal pressure; Mixed material is put into granulation in the screw extrusion press of diameter 54mm, screw slenderness ratio is 35, and rotating speed is 65r/min, and barrel segmentation temperature is: 170～180 ℃, 190～200 ℃, 205～215 ℃, and 200～205 ℃ of head temperatures; After granulation with pellet injection moulding after under 90 ℃ dry 1.5 hours, 205～210 ℃ of injection temperatures, 75～80 ℃ of die temperatures, injection moulding pressure is at 11.6MPa, injection time is 25 seconds, be 45 seconds cooling time, gets polystyrene plastic spare.Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Comparative example 3
Do not add fire retardant, all the other are with embodiment 5 steps.Take 100 parts of polystyrene resins, 35 parts of styrene-butadiene-styrenes, nano barium sulfate 22 parts of (median size is 55nm), 1.2 parts of thio-2 acid octadecyl esters and [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] 3.2 parts of 0.6 part of pentaerythritol esters, 0.8 part of ESCALOL 567,5 parts of molybdenum oxides, fatty acid amide be placed in reactor, mixes 35min under 90 ℃, normal pressure; Mixed material is put into granulation in the screw extrusion press of diameter 46mm, screw slenderness ratio is 32, and rotating speed is 80r/min, and barrel segmentation temperature is: 165～175 ℃, 185～195 ℃, 210～220 ℃, and 195～200 ℃ of head temperatures; After granulation with pellet injection moulding after under 85 ℃ dry 2 hours, 200～205 ℃ of injection temperatures, 70～75 ℃ of die temperatures, injection moulding pressure is at 10.0MPa, injection time is 30 seconds, be 40 seconds cooling time, gets polystyrene plastic spare.Resulting materials is processed into test bars by the standard test requirement, tests its performance and list in table 1.
Table 1
Found out by every data in table 1, the over-all properties such as the high and good toughness of the embodiment 5 gained weather-resistance flame-retardant High Impact Polystyrene (HIPS) strengths of materials, shock-resistant, good flame resistance, ageing-resistant performance height is better, can improve the plastic prod performance; Embodiment 4 resulting materials tensile strengths, shock strength reduce, but ageing resistance is better; Tensile strength, the shock strength of embodiment 3 resulting materials are higher, but ageing-resistant on the low side with flame retardant resistance; The over-all properties of embodiment 1,2 resulting materials is on the low side, does not reach requirement.Do not add filler in comparative example 1 tensile strength of material, elongation at break, notched Izod impact strength are descended a lot, mechanical property is very poor; Comparative example 2 does not add oxidation inhibitor and photostabilizer significantly reduces material photoaging conservation rate, and ageing resistance does not reach the product performance requirement; Comparative example 3 does not add fire retardant reduces the oxygen index of material greatly, and flame retardant resistance is very poor, does not reach fire-retardant index.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.The person skilled in the art obviously can easily make various modifications to these embodiment, and in the General Principle of this explanation is applied to other embodiment and needn't pass through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not breaking away from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. polystyrene material is characterized in that: made by the component that comprises following weight part:
100 parts of polystyrene resins,
20～35 parts of toughner,
8～25 parts of fillers,
1～2.8 part, oxidation inhibitor,
0.2～1.0 part of photostabilizer,
8～15 parts of fire retardants,
1～6 part of retardant synergist,
2.5～4 parts of lubricants.
2. polystyrene material according to claim 1, it is characterized in that: described toughner is selected from paracril, styrene-butadiene-styrene or terpolymer EP rubber.
3. polystyrene material according to claim 1, it is characterized in that: described filler is selected from nano-calcium carbonate, nano barium sulfate or nano titanium oxide.
4. polystyrene material according to claim 1, it is characterized in that: the median size of described Nano filling is 40～70nm.
5. polystyrene material according to claim 1, it is characterized in that: described oxidation inhibitor is selected from N-cyclohexyl ethyl alcohol amine, thio-2 acid octadecyl ester, [β-(3,5 di-t-butyl 4-hydroxyl-phenyl) propionic acid] pentaerythritol ester, Tyox B or 1, in 1,3-three (2-methyl-4-hydroxyl-5-trimethylphenylmethane base) butane any two kinds.
6. polystyrene material according to claim 1, it is characterized in that: described photostabilizer is selected from tricresyl phosphite (1,2,2,6,6-pentamethyl-piperidines) ester, Whitfield's ointment-4-tertiary butyl phenyl ester or ESCALOL 567.
7. polystyrene material according to claim 1 is characterized in that: described fire retardant is selected from melamine cyanurate, melamine phosphate, melamine pyrophosphate, trimeric cyanamide octamolybdate, melamine borate salt or coats one or more in polyphosphoric acid amine.
8. polystyrene material according to claim 7, it is characterized in that: described coated ammonium polyphosphate is selected from melamine-formaldehyde coated ammonium polyphosphate, epoxy resin coated ammonium polyphosphate, unsaturated polyester coated ammonium polyphosphate or polyurethane elastomer coated ammonium polyphosphate.
9. polystyrene material according to claim 1, it is characterized in that: described retardant synergist is selected from magnesium oxide, zinc borate, antimonous oxide or molybdenum oxide;
Or described lubricant is selected from calcium stearate, Zinic stearas or fatty acid amide.
10. the preparation method of arbitrary described polystyrene material in a claims 1-9 is characterized in that: comprise the following steps:
(1) 2.5～4 parts of 100 parts of polystyrene resins, 20～35 parts of toughner, 8～25 parts of fillers, 1～2.8 part, oxidation inhibitor, 0.2～1.0 part of photostabilizer, 8～15 parts of fire retardants, 1～6 part of retardant synergist, lubricant are taken in proportion be placed in reactor, mix 30～45min under 80～100 ℃, normal pressure;
(2) material is put into granulation in the screw extrusion press of diameter 46～62mm after mixing, screw slenderness ratio is 32～40, rotating speed is 55～80r/min, and barrel segmentation temperature is: 160～180 ℃, 180～200 ℃, 200～220 ℃, and 185～205 ℃ of head temperatures;
(3) after granulation with pellet injection moulding after under 80～90 ℃ dry 1.5～2.5 hours, 190～210 ℃ of injection temperatures, 60～80 ℃ of die temperatures, injection moulding pressure is at 8.5～11.6MPa, injection time is 15～30 seconds, and be 30～45 seconds cooling time, gets polystyrene plastic spare.
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