CN111763378A - Flame-retardant wear-resistant polypropylene-based blending composition material and preparation method thereof - Google Patents
Flame-retardant wear-resistant polypropylene-based blending composition material and preparation method thereof Download PDFInfo
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- 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
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
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- C08L2201/02—Flame or fire retardant/resistant
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The invention relates to a flame-retardant wear-resistant polypropylene-based blending composition material and a preparation method thereof, wherein the flame-retardant wear-resistant polypropylene-based blending composition material comprises the following components in parts by weight: 100 parts by weight of polypropylene and nano SiO20.05-0.5 part of bridging microfiber and 10-20 parts of polyether sulfone/polyethylene composite intermediate particle; wherein, the nano SiO2The bridged microfiber is prepared from 2-cyanoethyltriethoxysilane, deionized water, ammonia, hydrochloric acid, methyltrimethoxysilane solution and SiO2Preparing microfibers; the polyether sulfone/polyethylene composite intermediate particle comprises the following components in parts by weight: 100 parts of polypropylene, 10-30 parts of polyether sulfone, 3-9 parts of polyethylene and 0.22-0.52 part of cross-linking agent. According to the preparation method of the flame-retardant wear-resistant polypropylene blending composition material provided by the embodiment of the invention, stable comprehensive performance can be obtained, and the wear-resistant performance and the flame-retardant performance of the material are improved.
Description
Technical Field
The invention belongs to the technical field of plastic preparation, and particularly relates to a flame-retardant wear-resistant polypropylene-based blending composition material and a preparation method thereof.
Background
Polypropylene is a plastic with excellent mechanical properties, and is widely applied to the fields of building materials, electronic appliances, automobiles, ships and the like. With the continuous deepening of application fields, the application of polypropylene is restricted by the two defects of poor flame retardance and poor wear resistance.
In order to improve the flame retardant property of polypropylene, a large amount of flame retardant is required to be added, and the common polypropylene flame retardants are mainly classified into halogen type and halogen-free type. The halogen flame retardant has poor thermal stability, antimony trioxide is required to be used as a synergist, and a synergistic system of the halogen flame retardant and an antimony compound can form toxic compounds, corrosive gases and smoke dust during combustion or high-temperature processing, so that the halogen flame retardant is harmful to the environment. On the other hand, in order to reduce the cost, an inorganic filler such as calcium carbonate, carbon black, talc or the like is generally added to the halogen-based flame-retardant polypropylene, but the inorganic filler may interfere with the efficacy of the halogen-based flame retardant. The halogen-free flame retardant is mainly divided into phosphorus-nitrogen flame retardants, hydroxides, microcapsules and intumescent flame retardants. The phosphorus-nitrogen flame retardant has poor thermal stability, large hygroscopicity and high addition amount; the addition amount of the aluminum hydroxide and the magnesium hydroxide is large, the adverse effect is generated on the physical efficiency and the melting property of the polypropylene, the decomposition temperature is low, and the polypropylene is only suitable for flame-retardant polypropylene production materials processed at a low temperature; microencapsulated red phosphorus needs to be used together with aluminum hydroxide and magnesium hydroxide, but the effect is not ideal; the intumescent flame retardant mainly takes intumescent graphite as a main body, adopts phosphorus compounds such as ammonium polyphosphate, melamine phosphate and the like or metal compounds such as antimony trioxide, zinc borate and the like as a synergist, and has the defects of higher cost, unstable flame retardant effect due to the influence of the expansion capability of the graphite and the size integrity of the graphite in the processing process.
The addition of components with wear resistance in polypropylene matrix resin is a main way to improve the wear resistance of polypropylene, and the wear resistance improvement scheme in the prior art has the following difficulties: 1) when the organic wear-resistant component is added, the wear-resistant performance of the whole material is improved to a limited extent, the requirement on the process is high, and the manufacturing cost is high; 2) when the inorganic wear-resistant component is added, the inorganic component is difficult to uniformly disperse, and can cause adverse effect on the tissue structure of the whole resin, and further influence the flame retardant property and mechanical property of the material.
In order to overcome the defects of the existing product and process, the application applies a new material and a new process to manufacture the flame-retardant wear-resistant polypropylene-based blending composition material.
Disclosure of Invention
In order to overcome the problems in the prior art, the invention aims to provide a flame-retardant wear-resistant polypropylene-based blend composition material and a preparation method thereof.
According to one aspect of the invention, the flame-retardant wear-resistant polypropylene-based blending composition material comprises the following components in parts by weight: 100 parts by weight of polypropylene and nano SiO20.05-0.5 part of bridging microfiber and 10-20 parts of polyether sulfone/polyethylene composite intermediate particle; wherein, the nano SiO2The bridged microfiber is prepared from 2-cyanoethyltriethoxysilane, deionized water, ammonia, hydrochloric acid, methyltrimethoxysilane solution and SiO2Preparing microfibers; the polyether sulfone/polyethylene composite intermediate particle comprises the following components in parts by weight: 100 parts of polypropylene, 10-30 parts of polyether sulfone, 3-9 parts of polyethylene and 0.5 part of cross-linking agent.
According to another aspect of the present invention, a method for preparing a flame retardant abrasion resistant polypropylene-based blend composition material comprises:
one, nanometer SiO2Preparation of bridged microfibers
1) Cyano nano SiO2Preparation: adding 2-6 parts of 2-cyanoethyltriethoxysilane into 100 parts of deionized water according to the volume part ratio, stirring at constant temperature of 40 ℃ for 30min, adding 1-5 parts of 0.15mol/L ammonia water, stirring at constant temperature of 50 ℃ for 120min, filtering, washing, and vacuum drying at 80 ℃ for 6h to obtain cyano nano SiO2；
2) Preparation of bridging medium solution: adjusting the pH value of a methyltrimethoxysilane solution of 5mol/L to 4.0 by adopting a hydrochloric acid solution of 0.15mol/L, and standing for 180min to obtain a bridging medium solution;
3) bridging treatment: according to the weight portion ratio, 0.5-1.5 portions of cyano-group nano SiO210 parts by weight of SiO2Adding the microfibers into 100 parts by weight of bridging medium solution, and performing ultrasonic dispersion for 20 min; adjusting the pH value to 8.0 by adopting 0.15mol/L ammonia water solution, standing, filtering, washing,vacuum drying at 120 deg.C for 90min to obtain cyano-attached nanometer SiO2Nano SiO 22Bridging the microfibers;
preparation of polyether sulfone/polyethylene composite intermediate particles
Fully mixing 100 parts by weight of polypropylene, 10-30 parts by weight of polyether sulfone, 3-9 parts by weight of polyethylene and 0.22-0.52 part by weight of cross-linking agent, drying at 60 ℃, extruding, cooling, shearing and granulating to obtain polyether sulfone/polyethylene composite intermediate particles;
three, compound granulation
According to the weight portion ratio, 100 portions of polypropylene and 0.05-0.5 portion of nano SiO2And (3) mixing the bridging microfibers and 10-20 parts by weight of polyether sulfone/polyethylene composite intermediate particles at a high speed for 15min at the temperature of 70 ℃, cooling, extruding, cooling, shearing and granulating to obtain the flame-retardant wear-resistant polypropylene-based blend composition material particles.
According to an exemplary embodiment of the present invention, the cyano nano SiO2Has an average particle diameter of 20nm to 100 nm.
According to an exemplary embodiment of the invention, the SiO2The microfibers had an average diameter of 0.5 μm and an average length of 2 μm.
In order to further enhance the granulation and composite granulation effects of the polyethersulfone/polyethylene composite intermediate particles, the extrusion temperature and the cooling temperature can be further divided according to the embodiment of the invention.
According to an exemplary embodiment of the present invention, the polyethersulfone/polyethylene composite intermediate particles are prepared at an extrusion temperature of: the temperature of the first zone is 155-170 ℃, the temperature of the second zone is 175-185 ℃, the temperature of the third zone is 180-195 ℃, the temperature of the fourth zone is 195-205 ℃ and the temperature of the head-end mold is 195-205 ℃; cooling temperature: the first zone was 60 ℃ and the second zone was 30 ℃.
According to an exemplary embodiment of the present invention, the extrusion temperature during the composite granulation is: the first zone is 145-160 ℃, the second zone is 165-180 ℃, the third zone is 185-195 ℃, the fourth zone is 190-205 ℃ and the head-end-die temperature is 190-205 ℃; the cooling temperature is as follows: the first zone was 80 ℃, the second zone 50 ℃, and the third zone 30 ℃.
Compared with the prior art, the invention is based on materials and processesMing passing nano SiO2The preparation of the bridging fiber and the polyether sulfone/polyethylene composite intermediate particle realizes the preparation of the flame-retardant wear-resistant polypropylene-based blending composition material. The flame-retardant wear-resistant polypropylene-based blending composition material has the advantages that the melt mass flow rate is not less than 25g/10min, the tensile yield stress is not less than 15MPa, and the flexural modulus is not less than 1.62 GPa; performing a wear test according to GB/T3960-2016 plastic sliding friction wear test method, wherein the mass wear is not more than 12.8mg, and the friction coefficient is not more than 0.13; the flame retardant rating of the material achieved V-0 when the vertical burning test was performed according to UL94-2016 (Tests for flame compatibility of Plastic Materials for Parts in Devices and applications). The wear resistance and the flame retardant property of the material are improved while stable comprehensive properties are obtained.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, the present invention is further described in detail by the following specific examples. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Example (b): preparation of flame-retardant wear-resistant polypropylene-based blending composition material
One, nanometer SiO2Preparation of bridged microfibers
1) Cyano nano SiO2Preparation: adding 2-cyanoethyl triethoxysilane into deionized water at a volume ratio, stirring at a constant temperature of 40 deg.C for 30min, adding 0.15mol/L ammonia water, stirring at a constant temperature of 50 deg.C for 120min, filtering, washing, and vacuum drying at 80 deg.C for 6h to obtain cyano nanometer SiO2；
2) Preparation of bridging medium solution: adjusting the pH value of a methyltrimethoxysilane solution of 5mol/L to 4.0 by adopting a hydrochloric acid solution of 0.15mol/L, and standing for 180min to obtain a bridging medium solution;
3) bridging treatment: according to the weight portion ratio, cyano-group nano SiO2、SiO2The microfibers are added to the bridging medium solution,ultrasonic dispersing for 20min, wherein SiO2The average diameter of the microfibers was 0.5 μm and the average length was 2 μm; adjusting pH to 8.0 with 0.15mol/L ammonia water solution, standing, filtering, washing, vacuum drying at 120 deg.C for 90min to obtain cyano-attached nanometer SiO2Nano SiO 22Bridging the microfibers;
preparation of polyether sulfone/polyethylene composite intermediate particles
Fully mixing polypropylene, polyether sulfone, polyethylene and a crosslinking agent, drying at 60 ℃, extruding by using a double-screw extruder, wherein the extrusion temperature (according to the sequence of materials in turn): the temperature of the first zone is 155-170 ℃, the temperature of the second zone is 175-185 ℃, the temperature of the third zone is 180-195 ℃, the temperature of the fourth zone is 195-205 ℃ and the temperature of the head-end mold is 195-205 ℃; cooling the extruded material in a subarea (according to the sequence of the materials in turn), wherein the temperature of a first cooling area is 60 ℃, and the temperature of a second cooling area is 30 ℃; shearing and granulating the cooled material to obtain polyether sulfone/polyethylene composite intermediate particles;
three, compound granulation
Mixing polypropylene and nano SiO in certain weight proportion2The bridging microfiber and polyethersulfone/polyethylene composite intermediate particles are mixed at a high speed for 15min at a temperature of 70 ℃, and extruded by a twin-screw extruder after being cooled, wherein the extrusion temperature (in the sequence of the materials in turn) is as follows: the first zone is 145-160 ℃, the second zone is 165-180 ℃, the third zone is 185-195 ℃, the fourth zone is 190-205 ℃ and the head-end-die temperature is 190-205 ℃; the extruded material is cooled in a subarea way (according to the sequence of the materials in turn), the temperature of a first cooling area is 80 ℃, the temperature of a second cooling area is 50 ℃, and the temperature of a third cooling area is 30 ℃; and shearing and granulating the cooled material to obtain the flame-retardant wear-resistant polypropylene-based blending composition material particles.
A plurality of tests were carried out according to the above preparation method, the test groups are respectively A1, A2, A3, A4 and A5 (the intermediate values of the temperature of the extrusion zone of each zone and the temperature of the die of the machine head can be obtained during the preparation and composite granulation of the polyether sulfone/polyethylene composite intermediate particles), and the test parameters are shown in Table 1.
TABLE 1
Flame retardant and abrasion resistant polypropylene based blend composition material pellets prepared according to test set numbers T1-T5, with material numbers S1, S2, S3, S4 and S5, respectively; materials with the general market designations of C6540L-033 CN2057A and C3322T-1JS-AIP-2015 are adopted as the comparative example 1 and the comparative example 2, and the material designations are D1 and D2 respectively.
Part 1 of the measurements according to GB/T3682.1-2018 "melt Mass Flow Rate (MFR) and melt volume flow Rate (MVR) of thermoplastics: standard methods melt mass flow rate measurements were performed on each group of materials, and 5 samples were taken for each material number and the results are shown in Table 2.
TABLE 2 melt mass flow rates for S1-S5 materials and comparative example materials
| Group of | Material numbering | Melt mass flow rate g/10min |
| T1 | S1 | 26 |
| T2 | S2 | 26 |
| T3 | S3 | 26 |
| T4 | S4 | 27 |
| T5 | S5 | 25 |
| Comparative example 1 | D1 | 26 |
| Comparative example 2 | D2 | 18 |
As can be seen from Table 2, the minimum melt mass flow rate of the pellets of the flame-retardant abrasion-resistant polypropylene-based blend composition material prepared in the application of T1-T5 is 25g/10min, the average value is 26g/10min, the melt mass flow rate is similar to that of comparative example 1, the melt mass flow rate is better than that of comparative example 2, and the pellets are easy to process and mold.
Part 2 of the material was moulded and extruded from Plastic Polypropylene (PP) according to GB/T2546.2-2003: sample preparation and Performance measurement the preparation of injection molded samples was carried out, the specification of the samples was 80mm × 10mm × 4 mm; determination of tensile Properties of plastics according to GB/T1040.2-2006 part 2: test conditions for molded and extruded plastics tensile yield stress measurements were carried out; the flexural modulus is measured according to GB/T9341-2008 'measurement of Plastic flexural Property'; 5 samples of each material were taken and measured, and the results are shown in Table 3.
TABLE 3 mechanical Properties of S1-S5 materials and comparative example materials
As can be seen from Table 3, in comparison with the properties of comparative examples D1 and D2, in particular, the minimum tensile yield stress of the pellets of the flame retardant abrasion resistant polypropylene-based blend composition material prepared in the present application T1-T5 was 15MPa, and the average value was 17.2MPa, which showed a small decrease in tensile yield stress in comparison with comparative examples 1 and 2. The minimum flexural modulus of the flame-retardant wear-resistant polypropylene-based blend composition material particles prepared by the application T1-T5 is 1.62GPa, the average value is 1.70GPa, and the flexural modulus is lower than that of comparative example 2 and is better than that of comparative example 1.
The abrasion test was carried out according to GB/T3960-2016 method for testing sliding friction and abrasion of plastics, 5 specimens were taken for each number of materials, the specifications of the specimens were 30mm × 7mm × 6mm, and the results of the abrasion test are shown in Table 4.
TABLE 4
As can be seen from Table 4, the average abrasion loss of the samples S1-S5 was 9.5mg and the average friction coefficient was 0.10, compared with the properties of the comparative samples, and the abrasion resistance of the flame retardant abrasion resistant polypropylene-based blend composition material was improved compared with the samples of comparative examples D1 and D2.
The vertical burning test was carried out according to UL94-2016 (Tests for flexibility of Plastic Materials for Partsin Devices and applications), and 10 specimens (two types of specifications) were taken for each number of Materials and the results are shown in Table 5.
TABLE 5
As can be seen from Table 5, the flame retardant rating of the samples T1, T2, T3, T4 and T5 reaches V-0, which is better than that of the comparative example, in the 50W vertical burning test specified in the UL94 standard.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (4)
1. The flame-retardant wear-resistant polypropylene-based blending composition material is characterized by comprising the following components in parts by weight: 100 parts by weight of polypropylene and nano SiO20.05-0.5 part of bridging microfiber and 10-20 parts of polyether sulfone/polyethylene composite intermediate particle; wherein, the nano SiO2The bridged microfiber is prepared from 2-cyanoethyltriethoxysilane, deionized water, ammonia, hydrochloric acid, methyltrimethoxysilane solution and SiO2Preparing microfibers; the polyether sulfone/polyethylene composite intermediate particle comprises the following components in parts by weight: 100 parts of polypropylene, 10-30 parts of polyether sulfone, 3-9 parts of polyethylene and 0.22-0.52 part of cross-linking agent.
2. A method for preparing a flame-retardant wear-resistant polypropylene-based blend composition material, which is characterized by comprising the following steps:
one, nanometer SiO2Preparation of bridged microfibers
1) Cyano nano SiO2Preparation: adding 2-6 parts of 2-cyanoethyltriethoxysilane into 100 parts of deionized water according to the volume part ratio, stirring at constant temperature of 40 ℃ for 30min, adding 1-5 parts of 0.15mol/L ammonia water, stirring at constant temperature of 50 ℃ for 120min, filtering, washing, and vacuum drying at 80 ℃ for 6h to obtain cyano nano SiO2；
2) Preparation of bridging medium solution: adjusting the pH value of a methyltrimethoxysilane solution of 5mol/L to 4.0 by adopting a hydrochloric acid solution of 0.15mol/L, and standing for 180min to obtain a bridging medium solution;
3) bridging treatment: according to the weight portion ratio, 0.5-1.5 portions of cyano-group nano SiO210 parts by weight of SiO2Adding the microfibers into 100 parts by weight of bridging medium solution, and performing ultrasonic dispersion for 20 min; adjusting pH to 8.0 with 0.15mol/L ammonia water solution, standing, filtering, washing, vacuum drying at 120 deg.C for 90min to obtain cyano-attached nanometer SiO2Nano SiO 22Bridging the microfibers;
preparation of polyether sulfone/polyethylene composite intermediate particles
Fully mixing 100 parts by weight of polypropylene, 10-30 parts by weight of polyether sulfone, 3-9 parts by weight of polyethylene and 0.22-0.52 part by weight of cross-linking agent, drying at 60 ℃, extruding, cooling, shearing and granulating to obtain polyether sulfone/polyethylene composite intermediate particles;
three, compound granulation
According to the weight portion ratio, 100 portions of polypropylene and 0.05-0.5 portion of nano SiO2And (3) mixing the bridging microfibers and 10-20 parts by weight of polyether sulfone/polyethylene composite intermediate particles at a high speed for 15min at the temperature of 70 ℃, cooling, extruding, cooling, shearing and granulating to obtain the flame-retardant wear-resistant polypropylene-based blend composition material particles.
3. The method of claim 2, wherein the cyano-based nano SiO2Has an average particle diameter of 20nm to 100 nm.
4. The method of claim 3, wherein the SiO is2The microfibers had an average diameter of 0.5 μm and an average length of 2 μm.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02212341A (en) * | 1988-12-12 | 1990-08-23 | Ppg Ind Inc | Thermally stable,chemically treated inorganic oxide substrate |
| CN104786604A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | Stretching-resistant packaging material and preparation method thereof |
| CN110339726A (en) * | 2019-07-10 | 2019-10-18 | 浙江海印数码科技有限公司 | A kind of hydridization polyether sulfone filtering film that polystyrene microsphere/carbon nanotube is composite modified and preparation method thereof, application |
| CN111416148A (en) * | 2020-03-06 | 2020-07-14 | 湖南科技大学 | Composite solid polymer electrolyte doped with modified nano-silica particles and preparation method thereof |
-
2020
- 2020-07-16 CN CN202010684481.8A patent/CN111763378A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02212341A (en) * | 1988-12-12 | 1990-08-23 | Ppg Ind Inc | Thermally stable,chemically treated inorganic oxide substrate |
| CN104786604A (en) * | 2015-03-31 | 2015-07-22 | 苏州市鼎立包装有限公司 | Stretching-resistant packaging material and preparation method thereof |
| CN110339726A (en) * | 2019-07-10 | 2019-10-18 | 浙江海印数码科技有限公司 | A kind of hydridization polyether sulfone filtering film that polystyrene microsphere/carbon nanotube is composite modified and preparation method thereof, application |
| CN111416148A (en) * | 2020-03-06 | 2020-07-14 | 湖南科技大学 | Composite solid polymer electrolyte doped with modified nano-silica particles and preparation method thereof |
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