CN102485786A - High strength antistatic polypropylene structural sheet material and preparation method thereof - Google Patents
High strength antistatic polypropylene structural sheet material and preparation method thereof Download PDFInfo
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- CN102485786A CN102485786A CN2010105694631A CN201010569463A CN102485786A CN 102485786 A CN102485786 A CN 102485786A CN 2010105694631 A CN2010105694631 A CN 2010105694631A CN 201010569463 A CN201010569463 A CN 201010569463A CN 102485786 A CN102485786 A CN 102485786A
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Abstract
The invention provides a high strength antistatic polypropylene structural sheet material. The sheet material comprises ingredients of, by weight, 5-15 parts of polypropylene antistatic master batch, 30-45 parts of polypropylene matrix resin, 1-5 parts of compatibilizer, 0.1-1.0 part of anti-oxidant and 45-55 parts of glass fibre. The method comprises steps of: first preparing polypropylene antistatic master batch; then extruding the polypropylene matrix resin, polypropylene antistatic master batch, compatibilizer and anti-oxidant and compounding uniformly with continuous glass fibre into a prepreg; and finally carrying out hot pressing moulding on the prepreg to obtain a structural sheet material. The polypropylene structural sheet material has not only good antistatic performance but also good mechanical properties to satisfy usage in a high strength environment. The structural sheet material can be used as a decorative sheet material and especially applies to occasions having high demand on mechanical strength.
Description
Technical field
The present invention relates to a kind of PP composite material, relate in particular to a kind of HS antistatic polypropylene structural panel and preparation method thereof.
Background technology
Vestolen PP 7052 (PP) has advantages such as density is low, performance good, cheap, is widely used in industrial circles such as chemical industry, building, light industry, household electrical appliance, packing and automobile.But because Vestolen PP 7052 is the high-insulativity material, and surface resistivity reaches 1010 Ω, its goods in use are easy to generate accumulation of static electricity and cause various bad and losses, have therefore limited the application of Vestolen PP 7052 in corresponding field simultaneously.
Make the rapid discharge of macromolecular material can prevent that electrostatic from gathering through improving polymer surface specific conductivity or volume conductance; Adding static inhibitor is the effective ways that improve the polymer surface specific conductivity, adds conductive filler material or then can effectively improve the volume conductance of macromolecular material with other electro-conductive material blend.
Difference according to addition manner; The use of static inhibitor can be divided into outer spreading type and Nei Jia type, in to add the type static inhibitor be the time to join in the resin in batching, it is scattered in the whole polymkeric substance uniformly; It can form uniform antistatic layer from macromolecular material inside to surface transport on the surface.The static inhibitor that is added mainly comprises surfactant type (cationic, anionic, amphoteric ion type, non-ionic type), polymer and conductivity type etc.Granted publication number has been announced for the Chinese invention patent of CN1058275C and in SE, has been added the method that metal or metal oxide powder, graphitized carbon black reduce material surface resistance; Publication number is that the Chinese invention patent of CN1188777A has been announced the method that in SE, adds graphitized carbon black reduction surface resistivity, but lacks the antistatic polypropylene structural panel that is applicable to the HS environment at present.
Summary of the invention
The present invention provides a kind of good antistatic performance that both had for the deficiency that solves above-mentioned prior art; Have mechanical property preferably again, be applicable to HS antistatic polypropylene structural panel to the higher occasion of requirement of mechanical strength and preparation method thereof.
The object of the invention is realized through following technical scheme:
A kind of HS antistatic polypropylene structural panel comprises the component of following parts by weight:
Polypropylene antistatic master batch 5-15,
Polypropylene matrix resin 30-45,
Expanding material 1-5,
Oxidation inhibitor 0.1-1.0,
Spun glass 45-55.
Said polypropylene antistatic master batch comprises the component of following parts by weight:
Acrylic resin 60-80,
Static inhibitor 20-40.
The melting index of said acrylic resin is 10-95g/10min, is selected from HOPP, COPP or its mixture, and the mixed weight ratio is 6-9 ︰ 1-4 for copolymerization Ju Bing Xi ︰ HOPP.
Said static inhibitor is a composite antistatic agent, is selected from glycerine ethylene bis stearic amide, anionic soap, palmitinic acid and stearic single double glyceride (Atmos 150), polyethers hindered amines static inhibitor, the many sulphonates static inhibitor two or more.
The weight proportion of said composite antistatic agent does; The glycerine ethylene bis stearic amide: many sulphonates static inhibitor is 1-3:1; Polyethers hindered amines static inhibitor: many sulphonates static inhibitor is 2:1; The glycerine ethylene bis stearic amide: palmitinic acid and stearic single double glyceride are 5-6:1; Anionic soap: palmitinic acid and stearic single double glyceride are 2:1, the glycerine ethylene bis stearic amide: polyethers hindered amines static inhibitor: many sulphonates static inhibitor is 2:2:1, polyethers hindered amines static inhibitor: many sulphonates static inhibitor: palmitinic acid and stearic single double glyceride are 4:2:0.5-1.
Said polypropylene matrix resin is a COPP, and melting index is 50-80g/10min.
Said spun glass is a continuous glass fibre.
Said expanding material is polypropylene grafted maleic anhydride PP-g-MAH, and melting index is 10-30g/10min.
Said oxidation inhibitor is Hinered phenols antioxidant, phosphite ester kind antioxidant or its mixture, and the mixed weight ratio is Hinered phenols antioxidant: phosphite ester kind antioxidant is 1:2.
The preferred antioxidant 1010 of said Hinered phenols antioxidant, the preferred oxidation inhibitor 168 of said phosphite ester kind antioxidant.
A kind of preparation method of HS antistatic polypropylene structural panel comprises following step:
(a) with acrylic resin and static inhibitor melt blending after the weighing in proportion, preparation polypropylene antistatic master batch;
(b) with polypropylene matrix resin, polypropylene antistatic master batch, expanding material and proportionally weighing of oxidation inhibitor, the adding forcing machine is extruded with continuous glass fibre through screw rod and evenly is combined into the preimpregnation band;
(c) adopt hot press molding method, the preimpregnation band is pressed into structural panel.
When in the said step (c) the preimpregnation band being pressed into structural panel, the paving mode of the Demand Design preimpregnation band that uses according to reality with lay the number of plies.
Compared with prior art, the present invention has following beneficial effect:
A kind of HS antistatic polypropylene structural panel of the present invention; At first prepare the polypropylene antistatic master batch, then polypropylene antistatic master batch, expanding material and oxidation inhibitor are added melt blending in the polypropylene matrix resin, and be combined into the preimpregnation band with continuous glass fibre; At last that the preimpregnation band is hot-forming; Make this Vestolen PP 7052 structural panel not only have good antistatic performance, also have mechanical property preferably, can satisfy under the HS environment and use.This structural panel can be used as dalle, is particularly useful for the occasion higher to requirement of mechanical strength, has widened polyacrylic range of application.
Embodiment
Describe the present invention in detail below in conjunction with each embodiment.
The raw material that relates among the present invention is: COPP, R7021-50RNA, Dow Chemical; HOPP, C758-80NA, Dow Chemical; Expanding material PP-g-MAH, the four-dimensional superpolymer plastic cement in Shenyang ltd, melting index is 10-30g/10min; The glycerine ethylene bis stearic amide, research trial factory of Jihua Group Co; Anionic soap, commercially available; Palmitinic acid and stearic single double glyceride, Atmos 150, Zhejiang development auxiliary reagent factory; Polyethers hindered amines static inhibitor, E-1016, static Science and Technology Ltd. of Dongguan City Fiat; Many sulphonates static inhibitor, commercially available; Hinered phenols antioxidant, 1010, Qingdao match promise chemical industry ltd; Phosphite ester kind antioxidant, 168, Qingdao match promise chemical industry ltd; Continuous glass fibre, Taishan glass fiber Ltd.
Embodiment 1
Table 1.1 polypropylene antistatic master batch proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| The glycerine ethylene bis stearic amide | 18phr |
| Many sulphonates static inhibitor | 9phr |
| Polyethers hindered amines static inhibitor | 18phr |
The preparation method of polypropylene antistatic master batch:
With the proportionally weighing of acrylic resin, composite antistatic agent, low speed mixing 3-5min in high-speed mixer obtains antistatic Preblend;
Antistatic Preblend in twin screw extruder, fusion in 170-210 ℃ of TR, extrude, granulation, drying, for use.
Table 1.2 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7phr |
| The polypropylene antistatic master batch | 16phr |
| Antioxidant 1010 | 0.3phr |
| Oxidation inhibitor 168 | 0.6phr |
| Spun glass | 140phr |
The preparation method of structural panel:
With polypropylene matrix resin, polypropylene antistatic master batch, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with continuous glass fibre and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into anlistatig Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 1.3 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 218 |
| Modulus in flexure/MPa | ASTM D790 | 11600 |
| Flexural strength/MPa | ASTM D790 | 271 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 77.1 |
| Surface resistivity/Ω | GB/1410-2006 | 3.2×10 8 |
Embodiment 2
Table 2.1 polypropylene antistatic master batch proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| The glycerine ethylene bis stearic amide | 28phr |
| Many sulphonates static inhibitor | 14phr |
The preparation method of polypropylene antistatic master batch:
With the proportionally weighing of acrylic resin, composite antistatic agent, low speed mixing 3-5min in high-speed mixer obtains antistatic Preblend;
Antistatic Preblend in twin screw extruder, fusion in 170-210 ℃ of TR, extrude, granulation, drying, for use.
Table 2.2 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7phr |
| The polypropylene antistatic master batch | 17phr |
| Antioxidant 1010 | 0.3phr |
| Oxidation inhibitor 168 | 0.6phr |
| Spun glass | 140phr |
The preparation method of structural panel:
With polypropylene matrix resin, polypropylene antistatic master batch, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with continuous glass fibre and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into anlistatig Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 2.3 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 230.1 |
| Modulus in flexure/MPa | ASTM D790 | 11600 |
| Flexural strength/MPa | ASTM D790 | 291 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 99 |
| Surface resistivity/Ω | GB/1410-2006 | 7.8×10 8 |
Embodiment 3
Table 3.1 polypropylene antistatic master batch proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| Polyethers hindered amines static inhibitor | 28phr |
| Many sulphonates static inhibitor | 14phr |
| Atmos 150 | 5phr |
The preparation method of polypropylene antistatic master batch:
With the proportionally weighing of acrylic resin, composite antistatic agent, low speed mixing 3-5min in high-speed mixer obtains antistatic Preblend;
Antistatic Preblend in twin screw extruder, fusion in 170-210 ℃ of TR, extrude, granulation, drying, for use.
Table 3.2 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7phr |
| The polypropylene antistatic master batch | 16phr |
| Antioxidant 1010 | 0.3phr |
| Oxidation inhibitor 168 | 0.6phr |
| Spun glass | 140phr |
The structural panel preparation method:
With polypropylene matrix resin, polypropylene antistatic master batch, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with spun glass and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into anlistatig Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 3.3 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 234.5 |
| Modulus in flexure/MPa | ASTM D790 | 11200 |
| Flexural strength/MPa | ASTM D790 | 269 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 100.3 |
| Surface resistivity/Ω | GB/1410-2006 | 9.5×10 7 |
Embodiment 4
Table 4.1 polypropylene antistatic master batch proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| The glycerine ethylene bis stearic amide | 36phr |
| Atmos 150 | 6phr |
The preparation method of polypropylene antistatic master batch:
With the proportionally weighing of acrylic resin, composite antistatic agent, low speed mixing 3-5min in high-speed mixer obtains antistatic Preblend;
Antistatic Preblend in twin screw extruder, fusion in 170-210 ℃ of TR, extrude, granulation, drying, for use.
Table 4.2 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7phr |
| The polypropylene antistatic master batch | 16phr |
| Antioxidant 1010 | 0.3phr |
| Oxidation inhibitor 168 | 0.6phr |
| Spun glass | 140phr |
The preparation method of structural panel:
With polypropylene matrix resin, polypropylene antistatic master batch, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with spun glass and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into anlistatig Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 4.3 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 238.5 |
| Modulus in flexure/MPa | ASTM D790 | 11800 |
| Flexural strength/MPa | ASTM D790 | 274 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 103.8 |
| Surface resistivity/Ω | GB/1410-2006 | 5.7×10 9 |
Embodiment 5
Table 5.1 polypropylene antistatic master batch proportioning
| Name of material | Consumption (weight) |
| COPP | 70phr |
| HOPP | 30phr |
| The glycerine ethylene bis stearic amide | 25phr |
| Atmos 150 | 5phr |
| Anionic soap | 10phr |
The preparation method of polypropylene antistatic master batch:
With the proportionally weighing of acrylic resin, composite antistatic agent, low speed mixing 3-5min in high-speed mixer obtains antistatic Preblend;
Antistatic Preblend adds in the twin screw extruder, fusion in 170-210 ℃ of TR, extrude, granulation, drying, for use.
Table 5.2 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7phr |
| The polypropylene antistatic master batch | 16phr |
| Antioxidant 1010 | 0.3phr |
| Oxidation inhibitor 168 | 0.6phr |
| Spun glass | 140phr |
The preparation method of structural panel:
With polypropylene matrix resin, polypropylene antistatic master batch, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with spun glass and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into anlistatig Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 5.3 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 227.5 |
| Modulus in flexure/MPa | ASTM D790 | 10800 |
| Flexural strength/MPa | ASTM D790 | 282 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 97.5 |
| Surface resistivity/Ω | GB/1410-2006 | 1.5×10 8 |
Comparative Examples
Table 6.1 preimpregnation band proportioning
| Name of material | Consumption (weight) |
| COPP | 100phr |
| PP-g-MAH | 7 phr |
| Antioxidant 1010 | 0.3 phr |
| Oxidation inhibitor 168 | 0.6 phr |
| Spun glass | 120 phr |
The preparation method of structural panel:
With acrylic resin, expanding material, oxidation inhibitor, according to the proportioning weighing, in high-speed mixer, mix 10-15min, obtain the premix base-material;
The premix base-material adds in the single screw extrusion machine, fusion in 170-230 ℃ of TR, extrudes with spun glass and evenly is combined into the preimpregnation band;
The preimpregnation band is hot pressed into the Vestolen PP 7052 structural panel in 185 ℃ vulcanizer.
Table 6.2 The performance test results
| Performance index | Testing standard | The result |
| Tensile strength/MPa | ASTM D638 | 239.7 |
| Modulus in flexure/MPa | ASTM D790 | 11900 |
| Flexural strength/MPa | ASTM D790 | 291 |
| Socle girder notched Izod impact strength/kJ/m 2 | ASTM D256 | 108.3 |
| Surface resistivity/Ω | GB/1410-2006 | 8.9×10 10 |
Embodiment 6
A kind of preparation method of HS antistatic polypropylene structural panel:
(a) with the melting index of 64 weight parts be many sulphonates static inhibitor melt blending after the weighing in proportion of glycerine ethylene bis stearic amide, 9 weight parts of HOPP and 27 weight parts of 95g/10min, preparation polypropylene antistatic master batch;
(b) be that the COPP of 80g/10min, the polypropylene antistatic master batch of 15 weight parts, the expanding material of 1 weight part are that melting index is the proportionally weighing of antioxidant 1010 of PP-g-MAH and 0.1 weight part of 10g/10min with the melting index of 30 weight parts, add the continuous glass fibre that forcing machine extrudes with 55 weight parts through screw rod and evenly be combined into the preimpregnation band;
(c) adopt hot press molding method, the preimpregnation band is pressed into structural panel.
Embodiment 7
A kind of preparation method of HS antistatic polypropylene structural panel:
(a) be that the melting index of COPP, 24 weight parts of 10g/10min is Atmos 150 melt blending after the weighing in proportion of many sulphonates static inhibitor, 4 weight parts of polyethers hindered amines static inhibitor, 12 weight parts of HOPP and 24 weight parts of 50g/10min with the melting index of 36 weight parts, preparation polypropylene antistatic master batch;
(b) be that the COPP of 50g/10min, the polypropylene antistatic master batch of 5 weight parts, the expanding material of 5 weight parts are that melting index is the proportionally weighing of oxidation inhibitor 168 of PP-g-MAH and 1.0 weight parts of 30g/10min with the melting index of 45 weight parts, add the continuous glass fibre that forcing machine extrudes with 45 weight parts through screw rod and evenly be combined into the preimpregnation band;
(c) adopt hot press molding method, the preimpregnation band is pressed into structural panel.
Embodiment 8
A kind of preparation method of HS antistatic polypropylene structural panel:
(a) be that the melting index of COPP, 8 weight parts of 40g/10min is many sulphonates static inhibitor melt blending after the weighing in proportion of polyethers hindered amines static inhibitor, 6.67 weight parts of HOPP and 13.33 weight parts of 65g/10min with the melting index of 72 weight parts, preparation polypropylene antistatic master batch;
(b) be that the COPP of 67g/10min, the polypropylene antistatic master batch of 10 weight parts, the expanding material of 4 weight parts are that melting index is the proportionally weighing of antioxidant 1010 of PP-g-MAH and 0.5 weight part of 20g/10min with the melting index of 35 weight parts, add the continuous glass fibre that forcing machine extrudes with 51 weight parts through screw rod and evenly be combined into the preimpregnation band;
(c) adopt hot press molding method, the preimpregnation band is pressed into structural panel.
More than the disclosed several specific embodiments that are merely the application, but the application is not limited thereto, any those skilled in the art can think variation, all should drop in the application's the protection domain.
Claims (10)
1. a HS antistatic polypropylene structural panel is characterized in that, comprises the component of following parts by weight:
Polypropylene antistatic master batch 5-15,
Polypropylene matrix resin 30-45,
Expanding material 1-5,
Oxidation inhibitor 0.1-1.0,
Spun glass 45-55.
2. a kind of HS antistatic polypropylene structural panel as claimed in claim 1 is characterized in that said polypropylene antistatic master batch comprises the component of following parts by weight:
Acrylic resin 60-80,
Static inhibitor 20-40.
3. a kind of HS antistatic polypropylene structural panel as claimed in claim 2; It is characterized in that; The melting index of said acrylic resin is 10-95g/10min; Be selected from HOPP, COPP or its mixture, the mixed weight ratio is 6-9 ︰ 1-4 for copolymerization Ju Bing Xi ︰ HOPP.
4. a kind of HS antistatic polypropylene structural panel as claimed in claim 2; It is characterized in that; Said static inhibitor is a composite antistatic agent, is selected from glycerine ethylene bis stearic amide, anionic soap, palmitinic acid and stearic single double glyceride, polyethers hindered amines static inhibitor, the many sulphonates static inhibitor two or more.
5. a kind of HS antistatic polypropylene structural panel as claimed in claim 4; It is characterized in that; The weight proportion of said composite antistatic agent does; The glycerine ethylene bis stearic amide: many sulphonates static inhibitor is 1-3:1; Polyethers hindered amines static inhibitor: many sulphonates static inhibitor is 2:1, the glycerine ethylene bis stearic amide: palmitinic acid and stearic single double glyceride are 5-6:1, anionic soap: palmitinic acid and stearic single double glyceride are 2:1; Glycerine ethylene bis stearic amide: polyethers hindered amines static inhibitor: many sulphonates static inhibitor is 2:2:1, polyethers hindered amines static inhibitor: many sulphonates static inhibitor: palmitinic acid and stearic single double glyceride are 4:2:0.5-1.
6. a kind of HS antistatic polypropylene structural panel as claimed in claim 1 is characterized in that said polypropylene matrix resin is a COPP, and melting index is 50-80g/10min.
7. a kind of HS antistatic polypropylene structural panel as claimed in claim 1 is characterized in that said spun glass is a continuous glass fibre.
8. a kind of HS antistatic polypropylene structural panel as claimed in claim 1 is characterized in that said expanding material is polypropylene grafted maleic anhydride PP-g-MAH, and melting index is 10-30g/10min.
9. a kind of HS antistatic polypropylene structural panel as claimed in claim 1; It is characterized in that; Said oxidation inhibitor is Hinered phenols antioxidant, phosphite ester kind antioxidant or its mixture, and the mixed weight ratio is Hinered phenols antioxidant: phosphite ester kind antioxidant is 1:2.
10. the preparation method of a HS antistatic polypropylene structural panel as claimed in claim 1 is characterized in that, comprises following step:
(a) with acrylic resin and static inhibitor melt blending after the weighing in proportion, preparation polypropylene antistatic master batch;
(b) with polypropylene matrix resin, polypropylene antistatic master batch, expanding material and proportionally weighing of oxidation inhibitor, the adding forcing machine is extruded with continuous glass fibre through screw rod and evenly is combined into the preimpregnation band;
(c) adopt hot press molding method, the preimpregnation band is pressed into structural panel.
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