CN110372959A - A kind of low smell, low VOC carbon nanotube reinforced polypropylene compound material and preparation method thereof - Google Patents
A kind of low smell, low VOC carbon nanotube reinforced polypropylene compound 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
- 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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Abstract
The invention discloses a kind of low smell, low VOC carbon nanotube reinforced polypropylene compound material and preparation method thereof, the material is composed of the following components by mass fraction: 100 parts of polypropylene, I10-40 parts of mixture, 5-10 parts of toughener, 4-8 parts of compatilizer, 1-2 parts of auxiliary agent；The mixture I is mixed in mass ratio for 82-93:7-18 by carbon nanotube and lubricant；The toughener is selected from ethylene-octene copolymer and/or ethylene-propylene copolymer；The compatilizer is selected from maleic anhydride inoculated polypropylene；The auxiliary agent is selected from antioxidant and/or light stabilizer.The carbon nanotube that the present invention uses plays the role of odor adsorption and humidification, has good mechanical property, and smell and VOC are extremely low, material appearance is excellent, can be widely used in automobile interior decoration appearance and non-appearance part field.
Description
Technical field
The present invention relates to the fields of PP composite material, enhance in particular to a kind of low smell, low VOC carbon nanotube poly-
Acrylic composite and preparation method thereof.
Background technique
With the continuous growth of China's car ownership, automobile is increasingly close with daily life, meanwhile, interior gas
Taste and air quality are increasingly by the concern of consumer.In recent years, due to the continuous development and innovation of automotive light weight technology technology,
Plastics are widely used to exterior part in vehicle body, especially modified polypropylene material, be largely used to as instrument board, door shield,
The large size inner-decoration component such as auxiliary fasia console.When vehicle interior temperature increases, the volatile organic matter in polypropylene material can discharge, close
The interior generation smell and VOC closed, damages passenger's body.Therefore, how to be effectively reduced raw material smell and
VOC, it has also become research hotspot in recent years.
Carbon nanotube is after 1991 are found, because its unique structure and good mechanical performance become grinding in recent years
Study carefully hot spot.Carbon nanotube has nanometer grade diameter, Micro-scale length, and draw ratio is up to 100-1000, and intensity is high, has ideal
Elasticity modulus, be a kind of fibrous material of function admirable, and at the same time with super large specific surface area, have to small-molecule substance
Stronger adsorption capacity.Therefore, as the super fiber for having adsorption capacity, carbon nanotube can be realized simultaneously enhancing and absorption
Effect.But the dispersion problem for how solving carbon nanotube is always the emphasis studied both at home and abroad, but so far still without breakthrough
Achievement is announced.
In the patent that existing disclosure can be looked into, reduce polypropylene material smell and VOC, one is by improve extrusion process,
Baking is handled after increase；Another is that eliminating smell agent or adsorbent are added in formula system, realizes the suction of smell and VOC substance
It is attached.These modes increase complex procedures degree, or can only realize single effect.Therefore, physical absorption how is realized, effectively
Smell, VOC are reduced, and at the same time realizing the effect being remarkably reinforced, is had great importance.
Summary of the invention
The object of the invention is to overcome the deficiencies of existing technologies, it is poly- to provide a kind of low smell, the enhancing of low VOC carbon nanotube
Acrylic composite and preparation method thereof, which has good mechanical property, and smell and VOC are extremely low, material appearance
It is excellent.
In order to achieve the above object, the present invention provides a kind of low smell, low VOC carbon nanotube reinforced polypropylene composite wood
Material, composed of the following components by mass fraction:
The mixture I is mixed in mass ratio for 82-93:7-18 by carbon nanotube and lubricant；
The toughener is selected from ethylene-octene copolymer (POE) and/or ethylene-propylene copolymer；
The compatilizer is selected from maleic anhydride inoculated polypropylene；
The auxiliary agent is selected from antioxidant and/or light stabilizer.
In above-mentioned technical proposal, the polypropylene is selected from highly crystalline homopolypropylene and/or copolymer polypropylene, crystallinity
>=70%, isotacticity is greater than 95%, and melting means is between 1-80g/10min；The content of vinyl monomer in copolymer polypropylene does not surpass
Cross 15%；
Preferably, the polyacrylic crystallinity is 75%, and melting means is between 20-45g/10min.
In above-mentioned technical proposal, the mixture I is prepared by the following method: carbon nanotube is added by formula and lubricates
In agent, supersonic oscillations disperse 2-4h, are stirred simultaneously.
In above-mentioned technical proposal, the lubricant is selected from silane coupling agent and/or White Mineral Oil.
In above-mentioned technical proposal, the carbon nanotube is selected from catalytic pyrolysis, arc discharge, template or laser evaporation method
The single wall of preparation or multi-walled carbon nanotube it is one or more；The length of the carbon nanotube is 1-900 microns.
Preferably, the length of the carbon nanotube is 100-400 microns.
Preferably, octene content is 25% in the ethylene-octene copolymer, melting means 0.5g/
10min。
In above-mentioned technical proposal, the grafting rate of the maleic anhydride inoculated polypropylene is 0.7-1.5%.
Preferably, the grafting rate of the maleic anhydride inoculated polypropylene is 1.2%.
In above-mentioned technical proposal, the antioxidant is selected from the double -3- (3- tertiary butyl-4-hydroxy -5- methylphenyl) of triethylene glycol
Acrylate, four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol esters (antioxidant 1010),
One of three (2,4- di-tert-butylphenol) phosphite esters (antioxidant 168) are a variety of.
Preferably, the antioxidant is by four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) third
Acid esters] pentaerythritol ester (antioxidant 1010) and three (2,4- di-tert-butylphenol) phosphite esters (antioxidant 168) press quality
Than being mixed for 1:2.
In above-mentioned technical proposal, the light stabilizer is selected from BW-6911 type light stabilizer.
The present invention also provides a kind of above-mentioned low smell, the preparation method of low VOC carbon nanotube reinforced polypropylene compound material,
Include the following steps:
1) polypropylene, mixture I, toughener, compatilizer, auxiliary agent are sequentially added in mixing apparatus by formula, stirring mixes
It closes uniformly, obtains PP composite material precursor；
2) by PP composite material precursor be placed in extrusion equipment in extrusion process to get arrive low smell, low VOC carbon nanometer
Pipe reinforced polypropylene compound material.
Preferably, in the step 1), the mixing apparatus used is agitator or high mixer, when mixing
Between be 5-10 minute, speed of agitator be 500-1200 revs/min.
Preferably, in the step 2), the extrusion equipment used makes polypropylene for double screw extruder
Composite material precursors lower extruding pelletization in a molten state.
In above-mentioned technical proposal, in the step 2), the process conditions of extrusion process are as follows: area's temperature be 170-180 DEG C,
Two area's temperature are 180-190 DEG C, three area's temperature are 190-200 DEG C, four area's temperature are 180-190 DEG C, five area's temperature are 165-175
DEG C, the revolving speed of extrusion equipment is 350-400 revs/min, and vacuum degree is -0.05~-0.08MPa, and the time of extrusion process is 1-3
Minute.
Compared with prior art, the present invention has the advantage that
First, carbon nanotube that the present invention uses while playing the role of odor adsorption and humidification, the carbon nanotube
Reinforced polypropylene material has good mechanical property, and smell and VOC are extremely low, and material appearance is excellent, can be widely applied
In automobile interior decoration appearance and non-appearance part field.
Second, the present invention is combined using lubricant with carbon nanotube mixture, solves the difficulty of carbon nanotube dispersibility
The dispersing apparatus and simple process that topic improves carbon nanotube and polyacrylic interface bond strength, and uses, it is easily operated.
Third, the present invention combined using compatilizer, auxiliary agent can further improve carbon nanotube with it is polyacrylic
Interface bond strength, and make the carbon nanotube reinforced polypropylene material that there is excellent light aging resisting characteristic, it can be used for
Automobile interior decoration appearance member.
Specific embodiment
The present invention is described in further detail combined with specific embodiments below.
In the examples below, polypropylene is one of highly crystalline homopolypropylene or copolymer polypropylene or its mixing
Object, 70% or more crystallinity；Isotacticity is greater than 95%, and melting means is between 1-80g/10min；Vinyl monomer in copolymer polypropylene
Content be no more than 15%；Preferably, crystallinity 75%, melting means is between 20-45g/10min.
Lubricant is selected from one of silane coupling agent, White Mineral Oil or more.The manufacturer of silane coupling agent is Beijing
Bo Li get chemical products Co., Ltd, trade mark KH-560；The manufacturer of white oil is Karamay, Xinjiang petro-chemical corporation, the trade mark
KN4006.Preferably, it with White Mineral Oil is that 1:1 is mixed that lubricant is silane coupling agent in mass ratio.
Carbon nanotube includes single wall, the multi wall carbon of catalytic pyrolysis, arc discharge, template and the preparation of laser evaporation method
One kind of nanotube or a variety of mixtures.The length of carbon nanotube is 1-900 microns；Preferably, length of carbon nanotube is
Between 100-400 microns.
Toughener be ethylene-octene copolymer (POE), the one of which of ethylene-propylene copolymer, or mixtures thereof；It is excellent
Selection of land, ethylene-octene copolymer, octene content 25%, melting means 0.5g/10min.
Compatilizer is low smell highly effective maleic anhydride graft polypropylene, grafting rate 0.7-1.5%；Preferably, it is grafted
Rate is 1.2%.
Auxiliary agent is one of antioxidant or light stabilizer or both mixing.Antioxidant is selected from double -3- (uncles 3- of triethylene glycol
Butyl -4- hydroxy-5-methyl benzene phenyl) acrylate, four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] seasons
One of Doutrate (antioxidant 1010), three (2,4- di-tert-butylphenol) phosphite esters (antioxidant 168) or more.
Light stabilizer is BW-6911.Preferably, it is 1 that auxiliary agent is antioxidant 1010, antioxidant 168 and light stabilizer in mass ratio:
2:1 is mixed.
Embodiment 1:
The preparation method of the low smell of the present embodiment, low VOC carbon nanotube reinforced polypropylene compound material, including walk as follows
It is rapid: with lubricant to be in mass ratio that 82:18 is mixed by carbon nanotube, supersonic oscillations disperse 2h, supersonic oscillations point under room temperature
High-speed stirred while dissipating obtains the uniformly mixed mixture I of lubricant and carbon nanotube, and wherein lubricant is silane coupled
Agent.
According to the mass fraction by 100 parts of polypropylene, 10 parts of mixture I, 5 parts of toughener, 4 parts of compatilizers, 1 part of auxiliary agent by first
It is sequentially placed in agitator and stirs 10 minutes afterwards, the revolving speed of agitator is 500 revs/min；Wherein, auxiliary agent is antioxidant triethylene glycol
Double -3- (3- tertiary butyl-4-hydroxy -5- methylphenyl) acrylate.
Finally, by the raw material mixed through double screw extruder extruding pelletization, extrusion process are as follows: 170 DEG C of an area, 2nd area
180 DEG C, 200 DEG C of 3rd area, 190 DEG C of 4th area, 175 DEG C of 5th area, screw speed are 400 turns/min, and vacuum degree is -0.08MPa, are squeezed out
The time of processing is 3 minutes.
Embodiment 2:
The preparation method of the low smell of the present embodiment, low VOC carbon nanotube reinforced polypropylene compound material, including walk as follows
It is rapid: with lubricant to be in mass ratio that 82:18 is mixed by carbon nanotube, supersonic oscillations disperse 4h, supersonic oscillations point under room temperature
High-speed stirred while dissipating obtains the uniformly mixed mixture I of lubricant and carbon nanotube, and wherein lubricant is White Mineral Oil.
According to the mass fraction by 100 parts of polypropylene, 20 parts of mixture I, 8 parts of toughener, 4 parts of compatilizers, 1 part of auxiliary agent by first
It is sequentially placed in agitator and stirs 5 minutes afterwards, the revolving speed of agitator is 1200 revs/min；Wherein, auxiliary agent is BW-6911 type light
Stabilizer.
Finally, by the raw material mixed through double screw extruder extruding pelletization, extrusion process are as follows: 180 DEG C of an area, 2nd area
190 DEG C, 200 DEG C of 3rd area, 180 DEG C of 4th area, 165 DEG C of 5th area, screw speed are 350 turns/min, and vacuum degree is -0.05MPa, are squeezed out
The time of processing is 1 minute.
Embodiment 3:
The preparation method of the low smell of the present embodiment, low VOC carbon nanotube reinforced polypropylene compound material, including walk as follows
It is rapid: with lubricant to be in mass ratio that 93:7 is mixed by carbon nanotube, supersonic oscillations disperse 3h, supersonic oscillations dispersion under room temperature
While high-speed stirred, obtain the uniformly mixed mixture I of lubricant and carbon nanotube, wherein lubricant be silane coupling agent with
White Mineral Oil presses the mixture of mass fraction 1:1.
100 parts of polypropylene, 40 parts of mixture I, 10 parts of toughener, 4 parts of compatilizers, 1 part of auxiliary agent are pressed according to the mass fraction
Sequencing is placed in agitator and stirs 10 minutes, and the revolving speed of agitator is 800 revs/min；Wherein, auxiliary agent is antioxidant, by
Four [methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol esters (antioxidant 1010) and three (2,4- bis-
Tert-butyl phenol) phosphite ester (antioxidant 168) mixes in mass ratio for 1:2.
Finally, extrusion process is 170 DEG C of an area, 2nd area by the raw material mixed through double screw extruder extruding pelletization
180 DEG C, 190 DEG C of 3rd area, 180 DEG C of 4th area, 175 DEG C of 5th area, screw speed are 400 turns/min, and vacuum degree is -0.08MPa, are squeezed out
The time of processing is 3 minutes.
Embodiment 4:
The preparation method of the low smell of the present embodiment, low VOC carbon nanotube reinforced polypropylene compound material, including walk as follows
It is rapid: it with lubricant is in mass ratio that 93:7 is mixed by carbon nanotube, supersonic oscillations disperse 3h, supersonic oscillations point under room temperature
High-speed stirred while dissipating obtains the uniformly mixed mixture I of lubricant and carbon nanotube, and wherein lubricant is silane coupling agent
The mixture of mass fraction 1:1 is pressed with White Mineral Oil.
According to the mass fraction by 100 parts of polypropylene, 40 parts of mixture I, 8 parts of toughener, 8 parts of compatilizers, 2 parts of auxiliary agents by first
It is sequentially placed in agitator and stirs 10 minutes afterwards, the revolving speed of agitator is 800 revs/min；Wherein, auxiliary agent is antioxidant
1010, antioxidant 168 and light stabilizer mix in mass ratio for 1:2:1.
Finally, by the raw material mixed through double screw extruder extruding pelletization, extrusion process are as follows: 170 DEG C of an area, 2nd area
180 DEG C, 200 DEG C of 3rd area, 190 DEG C of 4th area, 175 DEG C of 5th area, screw speed are 400 turns/min, and vacuum degree is -0.08MPa, are squeezed out
The time of processing is 3 minutes.
Embodiment 5:
The preparation method of the low smell of the present embodiment, low VOC carbon nanotube reinforced polypropylene compound material, including walk as follows
It is rapid: it with lubricant is in mass ratio that 82:18 is mixed by carbon nanotube, supersonic oscillations disperse 3h, supersonic oscillations point under room temperature
High-speed stirred while dissipating obtains the uniformly mixed mixture I of lubricant and carbon nanotube, and wherein lubricant is silane coupling agent
The mixture of mass fraction 1:1 is pressed with White Mineral Oil.
According to the mass fraction by 100 parts of polypropylene, 20 parts of mixture I, 8 parts of toughener, 8 parts of compatilizers, 2 parts of auxiliary agents by first
It is sequentially placed in agitator and stirs 10 minutes afterwards, the revolving speed of agitator is 800 revs/min；Wherein, auxiliary agent is antioxidant, by four
[methyl-β-(3,5- di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (antioxidant 1010) and three (2,4- bis- uncles
Butylphenol) phosphite ester (antioxidant 168) mixes in mass ratio for 1:2.
Finally, by the raw material mixed through double screw extruder extruding pelletization, extrusion process are as follows: 170 DEG C of an area, 2nd area
180 DEG C, 200 DEG C of 3rd area, 190 DEG C of 4th area, 175 DEG C of 5th area, screw speed are 400 turns/min, and vacuum degree is -0.08MPa, are squeezed out
The time of processing is 3 minutes.
Comparative example:
The PP composite material preparation method of this comparative example includes the following steps: 100 parts of polypropylene, 20 parts of lubrications
Agent, 8 parts of toughener, 8 parts of compatilizers, 2 parts of auxiliary agents are sequentially placed in agitator and stir 10 minutes, and the revolving speed of agitator is
800 revs/min；Finally, by the raw material mixed through double screw extruder extruding pelletization, extrusion process are as follows: 170 DEG C of an area,
Two 180 DEG C of areas, 200 DEG C of 3rd area, 190 DEG C of 4th area, 175 DEG C of 5th area, screw speed are 400 turns/min, and vacuum degree is -0.08MPa,
The time of extrusion process is 3 minutes.
Effect example:
Low smell, low VOC carbon nanotube reinforced polypropylene compound material and the comparative example system that embodiment 1-5 is prepared
Standby obtained PP composite material is 2 hours dry in 80-90 DEG C of baking oven, is then being molded dried particulate material
Standard testing batten is molded by molding machine.
Tensile strength is detected by ISO 527-2 standard, specimen types 1A type, tensile speed 50mm/min；Bending
Intensity and bending modulus are detected by 178 standard of ISO, rate of bending 2mm/min.Odor test is according to EQCL-64 standard
It is detected.Sample in 1L closed container is stored 2 hours at 80 DEG C, 1 hour cooling under the conditions of 23 DEG C after taking-up, then
According to the standard rating grade of EQCL-64, participate in evaluating by 5 people, obtain total grade of a statistics: 1 grade is to be detectable,
2 grades are slight intensity, and 3 grades are moderate strength, and 4 grades larger for intensity, 5 grades very big for intensity, and 6 grades are to be difficult to endure.Evaluation point
Number is less than or equal to 2.6 grades for qualification.TVOC is detected according to EQCT-1653 standard, and it is qualification that TVOC, which is less than 50mg/kg,.
Prepared by low smell prepared by embodiment 1-5, low VOC carbon nanotube reinforced polypropylene compound material and comparative example
The performance characterization of plain polypropylene composite material is as shown in table 1.
1 embodiment and comparative example the performance test results of table
| Index | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Embodiment 5 | Comparative example 1 |
| Tensile strength (MPa) | 100 | 94 | 110 | 115 | 102 | 21 |
| Bending strength (MPa) | 107 | 103 | 113 | 120 | 110 | 25 |
| Bending modulus (MPa) | 12000 | 11400 | 15450 | 18000 | 14500 | 1000 |
| Smell (grade) | 2.2 | 2.4 | 2.0 | 2.0 | 2.5 | 3.2 |
| TVOC(mg/kg) | 8.72 | 10.56 | 1.52 | 0.51 | 14.55 | 72.82 |
It can go out from table 1, the addition of carbon nanotube acts on the raising of polypropylene material mechanical property significant.In toughening
In agent, compatilizer, the identical situation of auxiliary agent content, the oder levels of material, and gas is can be significantly reduced in addition carbon nanotube
Taste grade is reduced with the increase of content of carbon nanotubes: being not added with the material oder levels 3.2 of carbon nanotube, is added 20 parts and mix
2.2-2.5 grades of material oder levels for closing object I, the material oder levels for adding 40 parts of mixture I are more reduced to 2.0 grades.Material
Material VOC content is significantly reduced with the increase of content of carbon nanotubes, and in the identical situation of content of carbon nanotubes, toughener contains
The increase of amount can improve the content of TVOC.Comparative example 2 and embodiment 5 can be seen that the increase of compatibilizer content, Ke Yiti
The mechanical property of high material, this is because compatilizer improves the interface cohesion of carbon nanotube and polypropylene material.
This hair can be understood and applied the above description of the embodiments is intended to facilitate those skilled in the art
It is bright.Person skilled in the art obviously easily can make various modifications to these embodiments, and described herein
General Principle is applied in other embodiments without having to go through creative labor.Therefore, the present invention is not limited to implementations here
Example, those skilled in the art's announcement according to the present invention, improvement and modification made without departing from the scope of the present invention all should be
Within protection scope of the present invention.
Claims (10)
1. a kind of low smell, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that by mass fraction by following
Group is grouped as:
The mixture I is mixed in mass ratio for 82-93:7-18 by carbon nanotube and lubricant；
The toughener is selected from ethylene-octene copolymer and/or ethylene-propylene copolymer；
The compatilizer is selected from maleic anhydride inoculated polypropylene；
The auxiliary agent is selected from antioxidant and/or light stabilizer.
2. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
It states polypropylene and is selected from highly crystalline homopolypropylene and/or copolymer polypropylene, crystallinity >=70%.
3. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
It states mixture I to be prepared by the following method: carbon nanotube being added in lubricant by formula, supersonic oscillations disperse 2-4h,
It is stirred simultaneously.
4. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
It states lubricant and is selected from silane coupling agent and/or White Mineral Oil.
5. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
State single wall or multi-walled carbon nanotube that carbon nanotube is selected from catalytic pyrolysis, arc discharge, template or the preparation of laser evaporation method
It is one or more；The length of the carbon nanotube is 1-900 microns.
6. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
The grafting rate for stating maleic anhydride inoculated polypropylene is 0.7-1.5%.
7. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
It states antioxidant and is selected from triethylene glycol double -3- (3- tertiary butyl-4-hydroxy -5- methylphenyl) acrylate, four [methyl-β-(3,5- bis-
Tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester, one of three (2,4- di-tert-butylphenol) phosphite esters or a variety of.
8. low smell according to claim 1, low VOC carbon nanotube reinforced polypropylene compound material, which is characterized in that institute
It states light stabilizer and is selected from BW-6911 type light stabilizer.
9. the preparation of a kind of any one of claim 1~the 8 low smell, low VOC carbon nanotube reinforced polypropylene compound material
Method, which comprises the steps of:
1) polypropylene, mixture I, toughener, compatilizer, auxiliary agent are sequentially added in mixing apparatus by formula, stirring, mixing are equal
It is even, obtain PP composite material precursor；
2) extrusion process in PP composite material precursor merging extrusion equipment is increased to get to low smell, low VOC carbon nanotube
Strong PP composite material.
10. the preparation method of low smell according to claim 9, low VOC carbon nanotube reinforced polypropylene compound material,
It is characterized in that, in the step 2), the process conditions of extrusion process are as follows: area's temperature is 170-180 DEG C, two area's temperature are 180-
190 DEG C, three area's temperature be 190-200 DEG C, four area's temperature are 180-190 DEG C, five area's temperature are 165-175 DEG C, extrusion equipment
Revolving speed is 350-400 revs/min, and vacuum degree is -0.05~-0.08MPa, and the time of extrusion process is 1-3 minutes.
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Cited By (3)
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| CN112708194A (en) * | 2020-12-14 | 2021-04-27 | 上海金发科技发展有限公司 | Low-gloss and low-odor polypropylene composite material and preparation method thereof |
| CN113121901A (en) * | 2021-03-11 | 2021-07-16 | 深圳烯湾科技有限公司 | Composite resin material for pressure gas storage container and preparation method thereof |
| CN114410014A (en) * | 2022-01-24 | 2022-04-29 | 广东圆融新材料有限公司 | Low-odor reinforced polypropylene composite material and preparation method thereof |
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| CN105199409A (en) * | 2015-10-27 | 2015-12-30 | 长安大学 | Smoke suppressing agent for asphalt, and smoke-suppressed asphalt based on smoke suppressing agent and preparation method thereof |
| CN106432899A (en) * | 2016-06-30 | 2017-02-22 | 嘉兴市高正高分子材料有限公司 | Activated carbon nanotube modified polypropylene (PP) antistatic film |
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