CN105367897A - Glass fiber reinforced modified polypropylene material and preparation method thereof - Google Patents
Glass fiber reinforced modified polypropylene material and preparation method thereof Download PDFInfo
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
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Abstract
The present invention discloses a glass fiber reinforced modified polypropylene material and a preparation method thereof, the glass fiber reinforced modified polypropylene material comprises the following components: 20 to 80 parts of glass fiber reinforced polypropylene masterbatch and 20 to 80 parts of glass bead masterbatch; wherein the glass bead masterbatch comprises the following components: 40-70 parts of polypropylene, 20-50 parts of glass beads and 1-10 parts of a grafting compatibility agent. The preparation method is as follows: firstly weighing the polypropylene, the glass beads and the grafting compatibility agent in proportion and mixing evenly for extruding, pulling and pelletizing to obtain the glass bead masterbatch by a twin-screw extruder; mixing the glass bead masterbatch and the glass fiber reinforced polypropylene masterbatch in proportion, using a single-screw injection molding machine for injection to obtain the glass fiber reinforced modified polypropylene material. The glass fiber reinforced modified polypropylene material has the characteristics of high strength, low density, low dielectric constant, low buckling deformation and thermal insulation and the like, and can meet the people requirements of lightweight plastic products; by use of the masterbatch production way, the operation is simple, the complex proportion can be changed according to the performance requirements of the final products, and the glass fiber reinforced modified polypropylene material has high application value and broad application prospects.
Description
Technical field
The present invention relates to field of high polymer material modification, be specifically related to a kind of fiberglass reinforced modified polypropylene material material and preparation method thereof.
Background technology
Fiber glass reinforced polypropylene is the matrix material of a class excellent combination property, is widely used in washing machine at present, dishwasher, water pipe, pump shell, power tool, the fields such as automobile.But fiber glass reinforced polypropylene material also has many shortcomings: because the density of glass fibre itself is much larger than resin matrix, thus common on market fiberglass reinforced modified polypropylene material density is very large; And due to glass fibre length-to-diameter ratio large, in moulding process, easy orientation, makes moulded products there is the defect of buckling deformation.In addition, adding of glass fibre, specific inductivity and the thermal conductivity of polypropylene material can be improved to a certain extent, limit the application of fiber glass reinforced polypropylene material in some field.
High-performance hollow glass micropearl is a kind of mineral filler of novel energy-conserving lightweight, and main chemical compositions is soda lime borosilicate glass.Due to its have that hollow, light weight, heat-insulation and heat-preservation, electric simulation strength are high, wear-resisting, corrosion-resistant, the feature such as radioprotective, sound insulation, water-intake rate are low, stable chemical performance, its using value is by cognitive gradually.Abroad, hollow glass micropearl, as the multi-functional weighting agent of matrix material, is widely used in the fields such as light rubber plastic, building materials, coating, glass reinforced plastic, emulsion explosive, oil drilling.Along with compatriots to its constructional feature be familiar with progressively deeply, the domestic application to high-performance hollow glass micropearl also pay close attention to by increasing field.
Chinese patent 201410382374.4 discloses the preparation of low-density polypropylene compound filled with hollow glass beads, reduce further the density of polypropylene composite material, meets the requirement that the terminal applies such as automobile develop matrix material lightweight.But this polypropylene composite intensity is low, and property is crisp, and its Application Areas is restricted.Chinese patent 201210505925.2 discloses a kind of preparation method of high-strength low-density modified PET material.Glass fibre and glass microballon add through twin-screw extrusion pusher side spout by the method, and tie rod pelletizing obtains product.But this preparation method makes glass and glass microballon wear and tear in the course of processing, fail to give full play to the effect of glass microballon vacuum structure, it is little that density reduces amplitude.
Summary of the invention
The defects such as the density that in prior art, fiber glass reinforced polypropylene material exists is large in order to overcome, thermal conductivity is large, specific inductivity is high, easy buckling deformation, the object of the present invention is to provide a kind of fiberglass reinforced modified polypropylene material, this material has high strength and high-modulus, density can be reduced to below virgin pp resin simultaneously, and there is low-k, the features such as low warpage and insulation.
Another object of the present invention is the preparation method being to provide above-mentioned fiberglass reinforced modified polypropylene material.
The present invention is realized by following technical proposals:
A kind of fiberglass reinforced modified polypropylene material, is characterized in that, comprise the component of following parts by weight:
Fiber glass reinforced polypropylene master batch 20-80 part;
Glass microballon master batch 20-80 part;
Wherein, described glass microballon master batch comprises the component of following parts by weight:
Polypropylene 40-70 part,
Glass microballon 20-50 part,
Grafting compatilizer 1-10 part.
Described fiber glass reinforced polypropylene master batch is one or both the mixing in long glass fiber-reinforced polypropylene master batch or Short Glass Fiber Reinforced Polypropylene master batch.
Described long glass fiber-reinforced polypropylene master batch is immersed in after in melt polypropylene long glass fibres dispersion through traction, cooling, pelletizing obtains, the reservation length of glass fibre equal with master batch particle length (LFT master batch) in described long glass fiber-reinforced polypropylene master batch, in master batch, the mass percent of glass is 30% ~ 60%.
Described Short Glass Fiber Reinforced Polypropylene master batch obtains by being dispersed in acrylic resin through twin screw extruder by staple glass precursor, the reservation length of glass fibre and master batch particle length Length discrepancy in described Short Glass Fiber Reinforced Polypropylene master batch, in master batch, the mass percent of glass is 30% ~ 60%.
Described glass microballon is hollow glass micropearl, and density is 0.2g/cm
3~ 0.6g/cm
3, size distribution is between 5 microns ~ 30 microns.
Described polypropylene is one or both the mixing in homo-polypropylene or Co-polypropylene.
Described grafting compatilizer is unsaturated acid or acid anhydrides and polyacrylic graftomer.
Described glass microballon master batch, counts by weight, also comprises 0.3 part-0.8 part, oxidation inhibitor and lubricant 0.2 part-0.4 part.
Described lubricant is selected from one or more in erucicamide, EBS amides, PE wax or stearate;
Described oxidation inhibitor is selected from one or more in suffocated amine antioxidant, Hinered phenols antioxidant or phosphite ester kind antioxidant.
Fiberglass reinforced modified polypropylene material of the present invention has low density feature.When content of glass fiber is identical, the density of described fiberglass reinforced modified polypropylene material is lower than commercially available fiberglass reinforced modified polypropylene material, fiberglass reinforced modified polypropylene material of the present invention is according to ISO1183 standard, and the density adopting pickling process to record is 0.80-1.00g/cm
3.
The preparation method of a kind of fiberglass reinforced modified polypropylene material of the present invention, comprises the following steps:
(1) prepare glass microballon master batch: polypropylene, grafting compatilizer are weighed in proportion and mixed, pour the main spout of twin screw extruder into; Glass microballon is poured into the side spout of forcing machine rear end; Mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch;
(2) glass microballon master batch and fiber glass reinforced polypropylene master batch blended: glass microballon master batch and fiber glass reinforced polypropylene master batch are mixed in proportion, utilize singe screw injection moulding machine inject obtain fiberglass reinforced modified polypropylene material.
In step (1), the extrusion temperature of described twin screw extruder controls at 200 DEG C ~ 230 DEG C;
In step (2), the injection temperature of described singe screw injection moulding machine controls at 240 DEG C ~ 250 DEG C.
Relative to prior art, tool of the present invention has the following advantages:
(1) fiberglass reinforced modified polypropylene material of the present invention, this material makes polypropylene have high strength and modulus by fiberglass reinforced on the one hand; On the other hand, because hollow glass micropearl has vacuum structure, hollow glass micropearl add the density, specific inductivity and the thermal conductivity that reduce this material.The present invention is by well combining the enhancement of glass with the loss of weight effect of hollow glass micropearl, the two has good synergy, the material prepared is with high strength, low density, low-k, the features such as low buckling deformation and insulation, meet the requirement of people to Reinforced Polypropylene plasthetics multifunction, the engineerings such as alternative ABS with PBT at electronic apparatus, communicate, the application of energy-conserving and environment-protective and automobile and other industries;
(2) the inventive method is blended with fiber glass reinforced polypropylene master batch again by glass microballon master batchization by two-step approach, reduce hollow glass micropearl to rub and the degree of breakage in the course of processing and between screw rod and glass fibre, give full play to the advantage of hollow glass micropearl vacuum structure, effectively reduce the density of material, specific inductivity and thermal conductivity; Also reduce the reduction ratio of glass fibre in the course of processing simultaneously, make glass fibre retain length to increase, product strength increases, simple to operate, and arbitrarily can change compound proportion according to the performance requriements of end article, there is very high using value and wide application prospect.
Accompanying drawing explanation
Fig. 1 is that the thrust plane SEM of the fiberglass reinforced modified polypropylene material that embodiment 1 obtains schemes.
Embodiment
For understanding the present invention better, below by embodiment, the present invention is further illustrated, it should be noted that embodiment does not form limiting the scope of the invention.
The preparation of long glass fiber-reinforced polypropylene master batch: be extruded in high temperature die head through forcing machine after being mixed by the processing aid such as acrylic resin and oxidation inhibitor, die head temperature controls at 260 ~ 280 DEG C; Through traction, cooling after continuous glass fibre is flooded by the molten polymer in extrusion die under the stretching action of traction type equipment, then pelletizing obtains long glass fiber-reinforced polypropylene master batch, and in master batch, the mass percent of glass is 30% ~ 60%.
The preparation of Short Glass Fiber Reinforced Polypropylene master batch: by acrylic resin, the main spout of twin screw extruder is poured into after grafting compatilizer and auxiliary agent mix at normal temperatures, fiberglas chopped strand pours the side spout of twin screw extruder rear end into, extruder temperature controls at 200 ~ 230 DEG C, glass fibre is extruded through twin screw extruder and is dispersed in acrylic resin, after tie rod, cooling, pelletizing obtains Short Glass Fiber Reinforced Polypropylene master batch, and in master batch, the mass percent of glass is 30% ~ 60%.
embodiment 1
By 54 parts of acrylic resins, 5 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 40 parts of hollow glass micropearl (density 0.4g/cm
3, median size 15um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 50% long glass fiber-reinforced polypropylene master batch mix in the ratio of 50:50 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of LFT master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
embodiment 2
By 54 parts of acrylic resins, 5 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 40 parts of hollow glass micropearl (density 0.3g/cm
3, median size 10um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 50% long glass fiber-reinforced polypropylene master batch mix in the ratio of 40:60 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of LFT master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
embodiment 3
By 54 parts of acrylic resins, 5 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 40 parts of hollow glass micropearl (density 0.4g/cm
3, median size 15um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 50% Short Glass Fiber Reinforced Polypropylene master batch mix in the ratio of 50:50 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of Short Glass Fiber Reinforced Polypropylene master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
embodiment 4
By 40 parts of acrylic resins, 9 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 50 parts of hollow glass micropearl (density 0.2g/cm
3, median size 10um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 40% long glass fiber-reinforced polypropylene master batch mix in the ratio of 40:60 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of LFT master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
embodiment 5
By 66 parts of acrylic resins, 3 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 30 parts of hollow glass micropearl (density 0.3g/cm
3, median size 25um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 30% long glass fiber-reinforced polypropylene master batch mix in the ratio of 50:50 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of LFT master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
embodiment 6
By 77 parts of acrylic resins, 2 parts of PP-g-MAH grafting compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 20 parts of hollow glass micropearl (density 0.5g/cm
3, median size 30um) and pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch.By glass fiber content be at room temperature 60% Short Glass Fiber Reinforced Polypropylene master batch mix in the ratio of 30:70 weight part with above-mentioned obtained hollow glass micropearl master batch, fiberglass reinforced modified polypropylene material can be obtained.
The present embodiment hollow core glass microballon is processed with the form of master batch, and glass fibre is processed with the form of LFT master batch.This material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
comparative example 1
By 49 parts of acrylic resins, 5 parts of PP-g-MAH compatilizers, 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, by 20 parts of hollow glass micropearl (density 0.4g/cm
3, median size 15um) and 25 parts of glass fibre pour the side spout of twin screw extruder rear end into, control extruder temperature at 200 ~ 230 DEG C, mixture extruded tie rod pelletizing through twin screw extruder and obtains glass/glass microballon composite strengthening polypropylene material.
This comparative example hollow core glass microballon and glass fibre are the form processing of feeding with non-master batch side, and this material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
comparative example 2
By 49 parts of acrylic resins, 5 parts of PP-g-MAH compatilizers, 20 parts of hollow glass micropearl (density 0.4g/cm
3median size 15um), 0.4 part of antioxidant 1010,0.4 part of irgasfos 168,0.2 part of erucicamide lubricant mixes with high mixer at normal temperatures, the compound obtained pours the main spout of twin screw extruder into, 25 parts of glass fibre are poured into the side spout of twin screw extruder rear end, control extruder temperature at 200 ~ 230 DEG C, mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass/glass microballon composite strengthening polypropylene material.
This comparative example hollow core glass microballon is the form processing of feeding with non-master batch master, and this material is injection molded into goods within the scope of 240 ~ 250 DEG C, and product correlated performance test result is in table 1.
Table 1 embodiment and comparative example the performance test results
| Embodiment | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Embodiment 6 | Comparative example 1 | Comparative example 2 |
| Glass microballon processing mode | Master batch | Master batch | Master batch | Master batch | Master batch | Master batch | Side is fed | Master feeds |
| Glass fibre processing mode | LFT master batch | LFT master batch | Shortly cut master batch | LFT master batch | LFT master batch | Shortly cut master batch | Side is fed | Side is fed |
| Glass microballon content wt% | 20 | 24 | 20 | 30 | 15 | 14 | 20 | 20 |
| Content of glass fiber wt% | 25 | 20 | 25 | 16 | 15 | 18 | 25 | 25 |
| Tensile strength MPa | 93.6 | 87.4 | 76.1 | 70.8 | 68.9 | 63.3 | 75.8 | 79.1 |
| Flexural strength MPa | 132.8 | 120.5 | 103.8 | 99.1 | 97.7 | 91.2 | 103.3 | 110.4 |
| Modulus in flexure MPa | 6600 | 6000 | 5380 | 5530 | 5160 | 4310 | 5290 | 5180 |
| Izod notched impact strength kJ/m 2 | 18.9 | 15.6 | 8.8 | 7.9 | 13.3 | 7.8 | 8.9 | 9.1 |
| Density g/cm 3 | 0.946 | 0.875 | 0.958 | 0.838 | 0.947 | 0.998 | 1.006 | 1.051 |
| Specific inductivity F/m | 2.46 | 2.31 | 2.49 | 2.24 | 2.33 | 2.37 | 2.53 | 2.57 |
| Thermal conductivity W/ (mK) | 0.3378 | 0.3262 | 0.3558 | 0.3019 | 0.3293 | 0.3327 | 0.3780 | 0.4079 |
Can be found out by table 1, hollow glass micropearl is produced with the form of master batch and is reduced clearly the density of goods.This is because in embodiments of the present invention, glass microballon effectively can reduce glass microballon with the processing of the form of master batch and wear and tear in the course of processing and between screw rod and glass and break, more intact (as Fig. 1) that the hollow structure of glass microballon is preserved, density reduces at most, and thermal conductivity and specific inductivity also have and to a certain degree decline.Be it can also be seen that by table 1, glass fibre is the most obvious to the strength enhancing of product with the form of master batch (particularly LFT) processing.This is due in system of the present invention, and glass fibre is the carrying effect as power, and glass retains that length is longer just better can absorb energy of rupture, and offset hollow glass micropearl to the negative effect of performance, macroscopic view is presented as the mechanical property with excellence.Therefore, by the enhancement of glass well being combined with the loss of weight effect of hollow glass micropearl, the invention provides a kind of high-strength low-density fiber glass reinforced polypropylene material and preparation method thereof.
Wherein testing method is carried out as follows:
Tensile strength: by ISO527 method, draw speed 50 mm/min;
Flexural strength: by ISO178 method, trial speed 2 mm/min;
Modulus in flexure: by ISO178 method, trial speed 2 mm/min;
Notched Izod impact strength: by ISO180 method, the sample of 4 mm thick, Izod notched impact;
Density: by ISO1183-1:2004 method (pickling process), temperature: 23 DEG C; Steeping fluid: H
2o;
Specific inductivity: by GB/T1409-2006 method, specimen size is 100 × 100 × 3mm, and temperature is 23 DEG C, and test resonant frequency is 2.5GHz;
Thermal conductivity: by ISO22007-2:2008 method, the plane plate specimen of 3 mm thick.
Claims (11)
1. a fiberglass reinforced modified polypropylene material, is characterized in that, comprises the component of following parts by weight:
Fiber glass reinforced polypropylene master batch 20-80 part;
Glass microballon master batch 20-80 part;
Wherein, described glass microballon master batch comprises the component of following parts by weight:
Polypropylene 40-70 part,
Glass microballon 20-50 part,
Grafting compatilizer 1-10 part.
2. a kind of fiberglass reinforced modified polypropylene material according to claim 1, is characterized in that, described fiber glass reinforced polypropylene master batch is one or both the mixing in long glass fiber-reinforced polypropylene master batch or Short Glass Fiber Reinforced Polypropylene master batch.
3. a kind of fiberglass reinforced modified polypropylene material according to claim 2, it is characterized in that, in described long glass fiber-reinforced polypropylene master batch, the reservation length of glass fibre is equal with master batch particle length, and in master batch, the mass percent of glass is 30% ~ 60%; The reservation length of glass fibre and master batch particle length Length discrepancy in described Short Glass Fiber Reinforced Polypropylene master batch, in master batch, the mass percent of glass is 30% ~ 60%.
4. a kind of fiberglass reinforced modified polypropylene material according to claim 1, is characterized in that, described polypropylene is one or both the mixing in homo-polypropylene or Co-polypropylene.
5. a kind of fiberglass reinforced modified polypropylene material according to claim 1, it is characterized in that, described glass microballon is hollow glass micropearl, and density is 0.2g/cm
3~ 0.6g/cm
3, size distribution is between 5 microns ~ 30 microns.
6. a kind of fiberglass reinforced modified polypropylene material according to claim 1, is characterized in that, described grafting compatilizer is unsaturated acid or acid anhydrides and polyacrylic graftomer.
7. a kind of fiberglass reinforced modified polypropylene material according to claim 1, is characterized in that, count by weight, also comprises 0.3 part-0.8 part, oxidation inhibitor and lubricant 0.2 part-0.4 part in glass microballon master batch.
8. a kind of fiberglass reinforced modified polypropylene material according to claim 7, it is characterized in that, described lubricant is selected from one or more in erucicamide, EBS amides, PE wax or stearate; Described oxidation inhibitor is selected from one or more in suffocated amine antioxidant, Hinered phenols antioxidant or phosphite ester kind antioxidant.
9. a kind of fiberglass reinforced modified polypropylene material according to any one of claim 1-8, is characterized in that, described fiberglass reinforced modified polypropylene material presses ISO1183 standard, and the density adopting pickling process to measure is 0.80-1.00g/cm
3.
10. a kind of preparation method of fiberglass reinforced modified polypropylene material according to any one of claim 1-9, is characterized in that, comprise the following steps:
(1) prepare glass microballon master batch: polypropylene, grafting compatilizer are weighed in proportion and mixed, pour the main spout of twin screw extruder into; Glass microballon is poured into the side spout of forcing machine rear end; Mixture is extruded tie rod pelletizing through twin screw extruder and obtains glass microballon master batch;
(2) glass microballon master batch and fiber glass reinforced polypropylene master batch blended: glass microballon master batch and fiber glass reinforced polypropylene master batch are mixed in proportion, utilize singe screw injection moulding machine inject obtain fiberglass reinforced modified polypropylene material.
The preparation method of 11. a kind of fiberglass reinforced modified polypropylene materials according to claim 10, is characterized in that, in step (1), the extrusion temperature of described twin screw extruder controls at 200 DEG C ~ 230 DEG C; In step (2), the injection temperature of described singe screw injection moulding machine controls at 240 DEG C ~ 250 DEG C.
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| CN110437540A (en) * | 2019-09-06 | 2019-11-12 | 万华化学集团股份有限公司 | A kind of polypropylene material and preparation method thereof that low-k high-intensity weather-proof high is good |
| CN110527195A (en) * | 2019-10-14 | 2019-12-03 | 中钢集团马鞍山矿山研究院有限公司 | A kind of that resist warping has both the environment-friendly function masterbatch and preparation method of cooperative flame retardant |
| US10626262B2 (en) | 2018-07-06 | 2020-04-21 | Sabic Global Technologies B.V. | Thermoplastic compositions with low dielectric constant and high stiffness and the shaped article therefore |
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| CN112708193A (en) * | 2020-12-14 | 2021-04-27 | 武汉金发科技有限公司 | Polypropylene composite material applied to water channel plate reinforcement and preparation method thereof |
| CN113418129A (en) * | 2021-05-26 | 2021-09-21 | 河南金铨塑业有限公司 | Glass bead and glass fiber composite reinforced corrugated pipe and production method thereof |
| CN113980385A (en) * | 2021-10-28 | 2022-01-28 | 金发科技股份有限公司 | Matte and scratch-resistant polypropylene composition and preparation method and application thereof |
| CN115403899A (en) * | 2022-06-21 | 2022-11-29 | 上海大赛璐塑料工业有限公司 | Modified PBT material and preparation method thereof |
| CN115434028A (en) * | 2021-06-01 | 2022-12-06 | 江苏锵尼玛新材料股份有限公司 | Antibacterial fiber material and preparation method thereof |
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