CN110724345A - Antistatic negative ion high-release polypropylene composite material and preparation method and application thereof - Google Patents
Antistatic negative ion high-release polypropylene composite material and preparation method and application thereof Download PDFInfo
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- CN110724345A CN110724345A CN201910828011.1A CN201910828011A CN110724345A CN 110724345 A CN110724345 A CN 110724345A CN 201910828011 A CN201910828011 A CN 201910828011A CN 110724345 A CN110724345 A CN 110724345A
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- C—CHEMISTRY; METALLURGY
- 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
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/14—Copolymers of propene
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- C—CHEMISTRY; METALLURGY
- 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
- 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
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/002—Physical properties
- C08K2201/005—Additives being defined by their particle size in general
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/017—Additives being an antistatic agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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 discloses an antistatic negative ion high-release polypropylene composite material and a preparation method and application thereof, wherein the polypropylene composite material comprises 50 ~ 80 parts of polypropylene, 10 ~ 30 parts of chopped glass fiber, 2 ~ 10 parts of negative ion release additive, 1 ~ 10 parts of antistatic agent, 0.1 ~ 1 parts of lubricant, 0.1 ~ 1 parts of antioxidant and 0.5 ~ 5 parts of compatilizer, wherein the negative ion release additive is powder formed by compounding negative ion powder and magnesium-aluminum silicate mineral gel, and the antistatic agent, special negative ion release additive and other additives are added into the polypropylene material to optimize the proportion of the components, so that the antistatic negative ion high-release polypropylene composite material is prepared, can release a large amount of negative ions with small particle size for a long time, plays roles in resisting and inhibiting bacteria, removing odor and removing dust, and degrading harmful VOC (volatile organic compounds) in the environment, and has excellent mechanical strength, so that the antistatic negative ion high-release polypropylene composite material has wide application prospects in interior and exterior products of automobiles.
Description
Technical Field
The invention belongs to the field of high polymer materials, and particularly relates to an antistatic and negative ion high-release polypropylene composite material and a preparation method thereof, and further relates to application of the antistatic and negative ion high-release polypropylene composite material in preparation of automobile interior and exterior decorations.
Background
At present, the production activities of human beings, particularly the industrialization degree is increasingly improved, the pollution is more and more serious, people who live and work in modern air-conditioning buildings for a long time often feel vexation, lethargy, hypodynamia, nausea, headache and dizziness, and the working efficiency and the physical health condition are obviously reduced, and researches show that the reasons for the phenomenon are closely related to the reduction of the concentration of negative ions in the air. In recent years, a great deal of clinical and experimental research is carried out in various countries, so that the practical value of the air negative ions is further confirmed. Thus, the negative ions are likened to "air vitamins" or "auxins" due to their particular efficacy.
With the continuous soundness of environmental regulations and the continuous enhancement of environmental awareness of people, the air quality and VOC level in the automobile also gradually influence the automobile purchasing selection and driving experience of consumers. Therefore, various environment-friendly and healthy functional materials become important material selection directions of various large main engine plants and research hotspots of material manufacturers, and negative ions are gradually developed and applied to the field of automobile materials due to the special effects of the negative ions. The existing polypropylene negative ion composite material generally has the defects of small negative ion release amount, instability and the like.
Disclosure of Invention
Based on the above, the invention provides an antistatic negative ion high-release polypropylene composite material, which is prepared by adding an antistatic agent, a special negative ion release additive and other auxiliary agents into a polypropylene material and optimizing the proportion of the components, and the antistatic negative ion high-release polypropylene composite material can persistently release a large amount of small-particle-size negative ions, has the effects of resisting and inhibiting bacteria, removing odor and dust, degrading harmful VOC (volatile organic compounds) in the environment and the like, can neutralize human body charges, maintain negative potential of cells and maintain human health, and has excellent mechanical strength, so that the antistatic negative ion high-release polypropylene composite material has wide application prospects in interior and exterior products of automobiles.
In order to achieve the purpose, the invention adopts the following technical scheme:
an antistatic negative ion high-release polypropylene composite material comprises the following components in parts by weight:
the anion release additive is powder compounded by anion powder and magnesium aluminum silicate mineral gel.
Further, the melt flow rate of the polypropylene is 10-100 g/10min at 230 ℃ and 2.16 kg.
Further, the length of the short glass fiber is 2-10 mm.
The particle size of the negative ion release additive is 800-5000 meshes, the impact performance of the material can be influenced if the particle size is too large, and the negative ion release effect can be influenced if the powder with too small particle size is easy to agglomerate. The mass fraction of the magnesium aluminum silicate mineral gel in the anion release additive is 0.5-5%, and the anion release additive is compounded by simply blending anion powder and the magnesium aluminum silicate mineral gel. In the invention, the anion powder and the magnesium-aluminum silicate mineral gel are compounded to form the anion release additive, and then the anion release additive is added into the polypropylene material, so that water molecules are released by being sheared by a screw rod in the subsequent extrusion process of the polypropylene material, and the formation of anions is facilitated due to the existence of the water molecules.
Further, the antistatic agent is at least one of cationic, anionic, nonionic and high-molecular permanent type. The cationic antistatic agent may be at least one of quaternary ammonium salts, alkyl imidazoline antistatic agents, etc., the anionic antistatic agent may be at least one of alkyl sulfonate, alkyl sulfate, alkyl phosphate, alkylphenol polyoxyethylene ether sulfate, etc., the nonionic antistatic agent may be at least one of fatty acid polyol ester, alkanolamine, alkanolamide, and adducts of fatty acid, fatty alcohol, and alkylphenol with ethylene oxide, etc., and the polymer permanent antistatic agent may be at least one of hydrophilic polymer antistatic agents and intrinsic conductive polymer antistatic agents. It is understood that the examples are only for the purpose of making the technical solutions of the present invention clearer, and are not intended to limit the scope of the present invention.
Further, the lubricant is at least one of erucamide, calcium stearate and stearic acid amide;
the compatilizer is at least one of cyclic anhydride type, carboxylic acid type and epoxy type, and preferably, the compatilizer is maleic anhydride graft polymer.
The antioxidant is at least one of hindered phenol, thioester and phosphite antioxidant. Preferably, the hindered phenol antioxidant is an antioxidant 1010, the thioester antioxidant is an antioxidant DLTP, and the phosphite antioxidant is an antioxidant 168.
The invention also aims to provide a preparation method of the antistatic negative ion high-release polypropylene composite material, which comprises the following steps:
uniformly mixing polypropylene, an anion release additive, an antistatic agent, a lubricant, an antioxidant and a compatilizer according to a ratio, adding the mixture into a double-screw extruder through a main screw feeding cylinder, melting, mixing and dispersing, adding short glass fibers into the double-screw extruder from a side screw feeding cylinder, and then plasticizing, extruding and granulating to obtain the polypropylene composite material.
Preferably, the length-diameter ratio of the double-screw extruder is 35-50: 1, the extrusion temperature is 180-230 ℃, and the screw rotating speed is 200-450 r/min.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention adopts the negative ion release additive with special radiation safety, and the negative ion release amount is high and is continuous and stable.
2. According to the invention, a special high-efficiency antistatic agent is introduced into the formula design in the formula, so that the interference of friction static electricity on the release of negative ions can be avoided, and the effective retention time of the negative ions of the material in an electrostatic environment is prolonged.
3. The negative ion polypropylene composite material developed by the invention can release negative ions stably and efficiently, can obviously improve the air quality in a vehicle, reduce VOC, remove dust and bacteria, neutralize human charges, keep negative potential of cells and maintain human health.
Detailed Description
In order that the invention may be more fully understood, reference will now be made to the specific embodiments illustrated. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.
The copolymerized polypropylene adopted in the following examples and comparative examples is high-crystallinity copolymerized polypropylene BX3800, and the manufacturer is SK martian; the homopolymerized polypropylene is SZ30S, and the manufacturer is SK Wuhan petrochemical; the anion powder and the aluminum silicate mineral gel in the anion release additive are both commercially available and are blended according to the mass fraction ratio, the particle size of the anion powder and the aluminum silicate mineral gel is 800-5000 meshes, and other auxiliary agents are also commercially available.
Example 1
65 parts of polypropylene copolymer BX3800, 8 parts of negative ion release additive (compounding of negative ion powder and magnesium aluminum silicate mineral gel, wherein the mass fraction of the magnesium aluminum silicate mineral gel is 4%), 5 parts of quaternary ammonium salt antistatic agent-octadecyl dimethyl hydroxyethyl quaternary ammonium nitrate, SN, 0.2 part of calcium stearate, 0.3 part of antioxidant 1010 and 2 parts of PP-g-MAH compatilizer (brand BONDYRAM 1001) are uniformly mixed, then the mixture is added into a double-screw extruder through a main screw feeding barrel for melting, mixing and dispersing, then 20 parts of short glass fiber (the length is 4.5mm) are added through a side screw feeding barrel, and then the polypropylene composite material is prepared through plasticizing, extruding and granulating, wherein the length-diameter ratio of a screw of the double-screw extruder is 48:1, the extruding temperature is 220 ℃, and the rotating speed of the screw is 400 r/min.
Example 2
According to the weight parts, 60 parts of homopolymerized polypropylene SZ30S, 5 parts of negative ion release additive (wherein the mass fraction of magnesium aluminum silicate mineral gel is 5%), 8 parts of alkyl sulfonate antistatic agent (sodium nonylphenoxy propane sulfonate, NP), 0.3 part of erucamide, 0.2 part of antioxidant DLTP and 3 parts of PP-g-MAH compatilizer (trade name BONDYRAM 1001) are uniformly mixed, added into a double-screw extruder through a main screw feeding barrel for melting, mixing and dispersing, then 25 parts of chopped glass fiber (the length of 4mm) are added through a side screw feeding barrel, and then plasticized, extruded and granulated to obtain the polypropylene composite material, wherein the length-diameter ratio of a screw of the double-screw extruder is 40:1, the extrusion temperature is 225 ℃, and the rotating speed of the screw is 450 r/min.
Example 3
70 parts of polypropylene copolymer BX3800, 6 parts of negative ion release additive (wherein the mass fraction of magnesium aluminum silicate mineral gel is 3%), 4 parts of alkyl sulfonate antistatic agent (potassium nonyl dipropyl ether sulfonate, DPE), 0.6 part of calcium stearate, 0.5 part of antioxidant 168 and 4 parts of PP-g-MAH compatilizer (KT-1) are uniformly mixed, added into a double-screw extruder through a main screw feeding barrel for melting, mixing and dispersing, then 15 parts of short glass fiber (with the length of 3mm) are added through a side screw feeding barrel, and then plasticizing, extruding and granulating are carried out to obtain the polypropylene composite material, wherein the length-diameter ratio of a screw of the double-screw extruder is 35:1, the extrusion temperature is 180 ℃, and the rotating speed of the screw is 200 r/min.
Example 4
Taking 50 parts of copolymerized polypropylene BX3800, 2 parts of negative ion release additive (wherein the mass fraction of magnesium aluminum silicate mineral gel is 5%), 10 parts of high-molecular permanent antistatic agent (antistatic agent BR-512), 0.1 part of stearic acid amide, 1 part of antioxidant DLTP and 5 parts of PP-g-MAH compatilizer (trade name BONDYRAM 1001), uniformly mixing, adding into a double-screw extruder through a main screw feeding barrel for melting, mixing and dispersing, adding 30 parts of short glass fibers (with the length of 2mm) through a side screw feeding barrel, plasticizing, extruding and granulating to obtain the polypropylene composite material, wherein the length-diameter ratio of a screw of the double-screw extruder is 50:1, the extrusion temperature is 230 ℃, and the rotating speed of the screw is 450 r/min.
Example 5
80 parts of homopolymerized polypropylene SZ30S, 10 parts of negative ion release additive (wherein the mass fraction of magnesium aluminum silicate mineral gel is 0.5%), 1 part of fatty acid polyol ester antistatic agent (polyethylene glycol PEG), 1 part of calcium stearate, 0.1 part of antioxidant 168 and 0.5 part of PP-g-MAH compatilizer (trade name BONDYRAM 1001) are uniformly mixed, added into a double-screw extruder through a main screw feeding barrel for melting, mixing and dispersing, 10 parts of chopped glass fibers (10 mm in length) are added through a side screw feeding barrel, and then plasticized, extruded and granulated to obtain the polypropylene composite material, wherein the length-diameter ratio of a screw of the double-screw extruder is 50:1, the extrusion temperature is 210 ℃, and the rotating speed of the screw is 420 r/min.
Comparative example 1
The other components and the addition amount and the preparation method are the same as those of example 1 without adding the negative ion release additive.
Comparative example 2
The other components and the amounts added and the preparation method were the same as in example 1, except that no antistatic agent was added.
Comparative example 3
The anion release additive in the comparative example is pure anion powder with the particle size of 3000 meshes, magnesium aluminum silicate mineral gel is not compounded, and the rest is the same as that in the example 1.
Table 1: properties of each of the samples in examples 1 to 5 and comparative examples 1 to 3
As can be seen from the test data in Table 1, after the antistatic agent and the negative ion release additive are compounded, the interference of tribostatic electricity on the release of negative ions can be avoided, the stability of the material in the release of negative ions in an electrostatic environment is enhanced, and the release amount of negative ions in the polypropylene material is obviously improved. Meanwhile, the magnesium-aluminum silicate mineral gel and the anion powder are compounded and combined, so that the anion release effect of the material can be obviously improved, and the antistatic and anion high-release polypropylene composite material prepared by the invention has excellent mechanical property and wide application prospect in automobile interior and exterior products.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. The antistatic negative ion high-release polypropylene composite material is characterized by comprising the following components in parts by weight:
50 parts of 50 ~ 80 parts of polypropylene, namely,
10 ~ 30 parts of chopped glass fiber, namely 10,
2 ~ 10 parts of negative ion release additive,
1 ~ 10 parts of antistatic agent, namely 1 part of antistatic agent,
0.1 part of lubricant 0.1 ~ 1, and mixing,
0.1 part of antioxidant 0.1 ~ 1, and the like,
0.5 ~ 5 parts of compatilizer;
the anion release additive is powder compounded by anion powder and magnesium aluminum silicate mineral gel.
2. The antistatic, negative ion high release polypropylene composite of claim 1 wherein the polypropylene has a melt flow rate of 10 ~ 100g/10min at 230 ℃ and 2.16 kg.
3. The antistatic, negative ion high release polypropylene composite of claim 1 wherein the chopped glass fiber has a length of 2 ~ 10 mm.
4. The antistatic, negative ion high release polypropylene composite of claim 1 wherein the negative ion release additive has a particle size of 800 ~ 5000 mesh and the weight fraction of magnesium aluminum silicate mineral gel in the negative ion additive is 0.5 ~ 5%.
5. The antistatic, anionic, high release polypropylene composite of claim 1 wherein the antistatic agent is at least one of cationic, anionic, nonionic, polymeric permanent.
6. The antistatic, negative ion high release polypropylene composite of claim 1 wherein the lubricant is at least one of erucamide, calcium stearate, stearamide;
the compatilizer is at least one of cyclic anhydride type, carboxylic acid type and epoxy type;
the antioxidant is at least one of hindered phenol, thioester and phosphite antioxidant.
7. The method of preparing the antistatic, negative ion high release polypropylene composite of claim 1 ~ 6, comprising the steps of:
uniformly mixing polypropylene, an anion release additive, an antistatic agent, a lubricant, an antioxidant and a compatilizer according to a ratio, adding the mixture into a double-screw extruder through a main screw feeding cylinder, melting, mixing and dispersing, adding short glass fibers into the double-screw extruder from a side screw feeding cylinder, and then plasticizing, extruding and granulating to obtain the polypropylene composite material.
8. The method of claim 7, wherein the twin screw extruder has a length to diameter ratio of 35 ~ 50:1, an extrusion temperature of 180 ~ 230 ℃, and a screw speed of 200 ~ 450 r/min.
9. Use of the antistatic, negative ion high release polypropylene composite of any of claim 1 ~ 6 in the preparation of automotive interior and exterior trim.
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| CN112694677A (en) * | 2021-01-08 | 2021-04-23 | 会通新材料股份有限公司 | Bamboo charcoal and tourmaline composite Ag-loaded antibacterial agent, antibacterial polypropylene composition and preparation method |
| CN113861561A (en) * | 2021-10-21 | 2021-12-31 | 重庆会通科技有限公司 | Flocking-imitating polypropylene composite material and preparation method and application thereof |
| CN116003890A (en) * | 2022-12-23 | 2023-04-25 | 石家庄合纳生物科技有限公司 | Preparation method of polyolefin thermoplastic elastomer with negative ion content |
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