CN101928429A - Low TVOC polypropylene composite for motor vehicles and preparation method thereof - Google Patents
Low TVOC polypropylene composite for motor vehicles and preparation method thereof Download PDFInfo
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- CN101928429A CN101928429A CN2010102667651A CN201010266765A CN101928429A CN 101928429 A CN101928429 A CN 101928429A CN 2010102667651 A CN2010102667651 A CN 2010102667651A CN 201010266765 A CN201010266765 A CN 201010266765A CN 101928429 A CN101928429 A CN 101928429A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/04—Particle-shaped
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92514—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92561—Time, e.g. start, termination, duration or interruption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
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- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a low TVOC polypropylene composite for motor vehicles and a preparation method thereof. A hydrogen type high silica alumina ratio porous molecular sieve is added to the TVOC polypropylene composite for the motor vehicles. The high silica alumina ratio means that the mole ratio of silicon dioxide to aluminium oxide is more than 30.In the invention one or more hydrogen type high silica alumina ratio porous molecular sieve materials which can effectively adsorb volatile and nonpolar organic compound in the polypropylene modified material are adopted, the prepared composite material has the characteristic of low TVOC. The porous molecular sieve materials are free from lyophobic modification and have simple production technology and wide source. The low TVOC polypropylene composite for the motor vehicles has simple preparation technology and low cost.
Description
Technical field
The present invention relates to a kind of polypropene composition, specifically, relate to a kind of low TVOC polypropene composition and preparation method thereof.
Background technology
Along with the raising day by day of people's living standard, people are also more and more higher to the requirement of Air quality in the automobile bodies, and green living has become the theme of concern for the environment and HUMAN HEALTH.The main source of automobile bodies internal contamination air is employed textiles, leatherware or plastics, the multiple volatile organic compoundss such as free formaldehyde, alkane, benzene,toluene,xylene and aldehydes that evaporate as adhesive glue, coating and the paint etc. of the carpet of skin chair cover or cloth chair cover, various material, mahogany plate.VOC is meant the easy evaporable organic substance under the normal temperature, and more common has: trieline, zellon, formaldehyde, toluene, benzene, dimethylbenzene etc. also have a plurality of kinds such as ethanol class and ketone in addition.TVOC is meant total volatile organic compound, according to GB/T18883-2002, its definition is to utilize among the Tenax GC or Tenax TA sampling, and nonpolar chromatographic column (polarity index is less than 10) is analyzed, the volatile organic compounds of retention time between normal hexane and n-hexadecane.What VOC tested is single material, and what TVOC tested is total amount.These volatile organic compoundss are easy to the obstacle by blood-brain, thereby cause central nervous system to be suppressed, make the people produce headache, weak, drowsy and uncomfortable feeling, and a lot of volatile organic compounds is proved to be carcinogens or suspect carcinogen.Symptoms such as when vehicle window closed, nearly 65% motorist was dizzy, sleepy through regular meeting's appearance, cough, alopecia, insomnia cause the driver to feel to constrain irritated, absent minded.Driver and passenger drive in this sweated environment for a long time or take, very easily cause not accommodate disease, even two traffic accidents.Increasing complaint of automobile consumer and query have been subjected to.
The automobile environment inside car pollutes following some feature:
(1) interior space is narrow and small, and pollution level is big.
(2) stopping property of automobile is very strong, and door and window is closed as a rule, is unfavorable for the diffusion of obnoxious flavour.
(3) automobile is a mobile traffic, and is big with extraneous convective heat exchange amount, and extraneous weather condition change greatly, to the control difficulty increasing of conditions such as temperature.
(4) vehicle glass door and window area occupied is big, the long-time exposure in the sun, and the vehicle interior temperature rangeability is bigger.At high temperature, the objectionable impurities in component and the finishing material is more volatile in the car comes out.
(5) density of population is big in the car, has increased the weight of pollution.
For this reason, at whole environment inside car, mainly be the organic volatile pollutent, in March, 2008, country has implemented " HJ/T 400-2007: volatile organic matter and aldoketones material sampling determination method in the car ", and puts into effect " in-vehicle air pollution substrate concentration limit value " at the end of Year 2008.All there is the relevant criterion of oneself in most automobile factorys, and the enforcement of national standard will produce great influence to auto vendor, and auto vendor detects also more and more stricter to the VOC of loose material.Therefore, a kind of effective way for preparing low TVOC polypropylene composite for motor vehicles of searching has important practical significance and meets environment protection requirement.
It has been generally acknowledged that the harmful volatile matter that the automobile plastic inside gadget produces is mainly caused by the following aspects.At first be to produce in the polyacrylic polymerization process of starting material.Polypropylene inevitably can more residual monomers or oligopolymer in polymerization process, and some polypropylene polymerization techniques also need add some solvents in addition, as hexane, ethanol etc.; The catalyzer that uses in the building-up process, the additive of giving some characteristic of PP can make that all polypropylene material contains certain volatile organic matter.Secondly, when polypropylene is carried out blending and modifying, degraded to a certain degree can take place in the polypropylene material melted by heating extrusion, the result of degraded produces low molecule organic matter, as straight-chain paraffin, group compounds of aldehydes and ketones; And the filler component such as the talcum powder that add wherein contain metallic impurity, these metallic impurity can be in modifying process catalysis polypropylene material and oxidation inhibitor, thermo-stabilizer degraded produce harmful fugitive constituent material.Therefore, for automobile-used polypropene composition, the TVOC in the material is mainly the mixture of alkane.
For reducing the TVOC content in the material, people control from aspects such as starting material source, complete processing, additives, or add the material that can react with these small molecules volatile matter, it is bigger to generate molecular weight, not volatile can stable existence in the material and the compound that is difficult for evaporating, thereby reach the purpose that reduces TVOC.Yet this chemical reaction reduces the method for TVOC often only at a factor that produces TVOC, can not solve the TVOC problem that various factors produces simultaneously.And physical adsorption does not possess specific selectivity, can the small molecules of all generations be adsorbed.The approach commonly used that realizes physical adsorption is to add porous molecular sieve materials.
The physical properties of silico-aluminate type porous molecular sieve materials comprises material type, material aperture, silica alumina ratio, surface properties, specific surface area, pore volume, degree of crystallinity, water content, granularity etc., wherein material type, material aperture, pore volume and surface properties are to weigh important parameter, particularly material type, silica alumina ratio and the material aperture that porous material is caught the volatile organic matter ability.Molecular sieve type mainly divides two kinds of sodium type and Hydrogens, and sodium type molecular sieve, should adopt and combine better hydrogen type molecular sieve with polypropylene for nonpolar polypropylene because the polarity of sodium ion is mainly used in the polar material.The big I of silica alumina ratio shows the polarity degree of molecular sieve, and the molecular sieve of high silica alumina ratio presents nonpolar, and is better with polyacrylic consistency.Otherwise the molecular sieve of low silica-alumina ratio presents polarity, and is relatively poor with polypropylene compatible.The size in aperture dominated can adsorbent kind and scope.For specific T VOC molecule, need suitable aperture to catch, the aperture is too small or cross the absorption that mostly is not suitable for TVOC.The aperture is too small, and the volatile matter that molecular weight is bigger can not enter the porous material hole and be adsorbed; The aperture is excessive, and weaken the capturing ability of molecule in the hole, and the small molecules that is adsorbed is desorption at a lower temperature easily.Therefore, selecting the porous molecular sieve materials of Hydrogen high silica alumina ratio and suitable aperture and structure is to solve the matter of utmost importance that porous molecular sieve materials improves automobile special material TVOC.Following table is the structural parameter of several porous molecular sieve materials.
In recent years, the research with low molecule easy volatile compound in the molecular sieve adsorption system more and more causes people's attention.Patent JP2008049287-A has invented a kind of filter fiber with double-deck removal VOC of good heat resistance, reaches the purpose of removing VOC by the absorption of the zeolite layer between inorganic fibre interlayer VOC gas.Patent EP1808420-A2 discloses a kind of interior architecture coating that absorbs obnoxious flavour, and invention is by the VOC gas during the adding zeolite comes in the adsorption chamber in coating, oxynitride, formaldehyde etc.Patent WO2007052074-A2 discloses a kind of palladium doped molecular sieve and has adsorbed VOC gas.This molecular sieve is adsorb volatile gas long-term effectively, in wet environment, is a kind of cost-effective VOC remover particularly.Patent CN 1727389A discloses a kind of low smell, low-volatile polypropylene composite material, suppresses the bad smell in the polypropylene composite material, the fugitive constituent in the reduction polypropylene composite material by adding Kiselgel A.Patent CN 1727390A has announced polypropylene composite material of a kind of low smell and preparation method thereof.Invention adds alkali metal aluminosilicate powder smell remover (sodium type molecular sieve) in system, the bad smell in the absorption system is prepared the polypropylene composite material of hanging down smell.Patent CN 1727391A discloses a kind of low smell, low-volatile polypropylene composite material and preparation method thereof.This method absorbs the smell and the fugitive constituent of polypropylene material by adding a certain amount of hydrophobic molecule sieve.But in these patents, porous molecular screen is mainly used in the polarity low molecular weight volatile thing in absorption coating, the plastics, perhaps by molecular sieve being carried out smell and the fugitive constituent in hydrophobic modified and then the absorbing material, and there is not to introduce in detail selection requirement to porous molecular screen.The hydrophobic molecule sieve complex manufacturing that adopts among the patent CN 1727391A, and the selection of molecular sieve can not be satisfied the standard testing of current automobile main frame maker.By noted earlier, for automobile-used polypropylene modified material, volatile matter mainly consist of nonpolar paraffins mixture among the TVOC, need to select a kind of effective porous molecular screen come low molecule paraffins mixture in the sorbing material, reduce the TVOC of material.
Summary of the invention
The purpose of this invention is to provide a kind of low TVOC polypropylene composite for motor vehicles, be used to produce automotive upholstery.
Another object of the present invention provides the preparation method of a kind of automobile with low VOC polypropene composition.
To achieve these goals, the present invention adopts following technical scheme:
A kind of low TVOC polypropylene composite for motor vehicles adds Hydrogen high silica alumina ratio porous molecular screen in polypropylene composite material.Described high silica alumina ratio is meant that the mol ratio of silicon-dioxide and aluminium sesquioxide is greater than 30.The mol ratio of preferred silicon-dioxide and aluminium sesquioxide is greater than 40.The best is that the mol ratio of silicon-dioxide and aluminium sesquioxide is greater than 50.
In above-mentioned low TVOC polypropylene composite for motor vehicles, described Hydrogen high silica alumina ratio porous molecular screen is preferably the vesicular structure of one or more dimensions, and micropore size is 0.1-60nm, and diameter of particle is greater than 1000 orders.
In above-mentioned low TVOC polypropylene composite for motor vehicles, make by following materials of weight proportions:
Polypropylene 55-95%
Talcum powder 0-35%
Hydrogen high silica alumina ratio porous molecular screen 0.5-5%
Toughner 0-20%.
In above-mentioned low TVOC polypropylene composite for motor vehicles, described polypropylene is preferably one or more of Co-polypropylene or homo-polypropylene, and ethylene content is at 4-10mol% in the Co-polypropylene, and melt flow rate (MFR) (2.16kg/230 ℃) is 5-50g/10min; The degree of crystallinity of homo-polypropylene is more than 70%, and degree of isotacticity is greater than 99%.
In above-mentioned low TVOC polypropylene composite for motor vehicles, described talcum powder particle diameter is 3.0-12.0mm.
In above-mentioned low TVOC polypropylene composite for motor vehicles, described toughner is elastomerics, selects one or more mixing in ethene-hexene copolymer, ethylene-butene copolymer, ethylene-octene copolymer, ethylene-propylene-octene terpolymer, the hydrogenation of ethylene-butadiene-styrene copolymer.
The preparation method of above-mentioned low TVOC polypropylene composite for motor vehicles comprises the steps:
(1) weight proportion by the described component of claim 3 takes by weighing various raw materials;
(2) each component was mixed in high-speed mixer 3-5 minute;
(3) with twin screw extruder with the material that mixes melt extrude, granulation, its processing condition are: 200～210 ℃ in a district, 210～220 ℃ in two districts, 210～220 ℃ in three districts, 200～215 ℃ in four districts; The residence time is 1-2 minute, and pressure is 10-20MPa.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention uses one or more Hydrogen high silica alumina ratio porous molecular sieve materials, but the volatile nonpolar organic compound in the active adsorption polypropylene modified material, and prepared matrix material has the characteristic of low TVOC.
(2) porous molecular sieve materials of the present invention's use need not pass through hydrophobically modified, and production technique is simple, wide material sources.
(3) automobile of the present invention's proposition is simple with the preparation technology of low VOC polypropene composition, and cost is lower.
Embodiment
Provide embodiment below so that the present invention is carried out concrete description; be necessary to be pointed out that at this following examples only are used for the present invention is further specified; can not be interpreted as limiting the scope of the invention, content still belongs to protection scope of the present invention to some nonessential improvement and the adjustment that the present invention makes to the person skilled in the art in this field according to the present invention.
Table 1 formulation content
Table 2 formulation content
Table 3 formulation content
Above-mentioned starting material are put into dried the mixing 3-5 minute of super mixer that rotating speed is about 1000rpm by weight percentage earlier, again raw materials mixed is placed twin screw extruder through melt extruding, granulation, its processing condition are: 200～210 ℃ in a district, 210～220 ℃ in two districts, 210～220 ℃ in three districts, 200～215 ℃ in four districts; The residence time is 1-2 minute, and pressure is 10-20MPa
Performance evaluation mode and implementation standard:
The pellet that aforesaid method makes is dry 2h in 80 ℃ ± 5 ℃ air dry oven at first, and then according to testing standard sample preparation on injection moulding machine.Test bars is just tested behind the adjusting 24h down at 23 ℃.
The tensile property test is undertaken by ISO527-93, and specimen size is 150 * 10 * 4mm, and draw speed is 50mm/min; The bending property test is undertaken by ISO178-93, and specimen size is 80 * 10 * 4mm, and rate of bending is 2mm/min, and span is 64mm; Heat-drawn wire is carried out according to ISO75-87, and specimen size is 120 * 10 * 3mm, and load is 0.45MPa; The socle girder notched Izod impact strength is carried out according to ISO180-93, and specimen size is 80 * 8 * 4mm; Notch depth is 2mm; Melt flow rate (MFR) is carried out according to ISO1133-97, and temperature is 230 ℃, and load is 2.16KG.
Organic compound emissions measurement (TVOC) is measured according to TS-INT-002.
Earlier sample is broken into the fritter of 10-25mg, takes by weighing 1.200 ± 0.0001g sample then and put into the head space bottle, seal this bottle and heat 5h at 120 ℃, every kind of sample is parallel makees three head space bottles.Syringe is inserted in the bottle, volatile organic matter is transferred in the gas chromatograph (GC), test conditions is as follows:
The head space condition:
Temperature: 120 ℃ in baking oven, 180 ℃ of 150 ℃ of needle tubings and transfer tubes
Time: needle tubing residence time 0.35min, sampling 0.5min
The GC condition:
Gas-chromatography furnace temperature: heat 3min down at 50 ℃, be heated to 200 ℃ with 12 ℃/min speed, then at 200 ℃ of constant temperature 4min;
Injector temperature: 200 ℃;
Splitting ratio: 20: 1
Enter the preceding pressure of chromatographic column: 10psi.
The data of gas-chromatography record comprise the total peak area and the peak area of single material.Its peak height should be at more than three times of baseline level of noise, and its peak area should be greater than 0.5g acetone peak area 10% in the 1L butanol solution.The total carbon volatile quantity is calculated by following formula:
E
G＝[(A
a-A
o)/K(G)]×2×0.6204
In the formula: E
GTotal carbon burst size in the=sample
A
aThe peak area that=sample is total
A
o=blank peak area
The calibration factor of K (G)=acetone calibration sample
The coefficient that 2=is relevant with sample quality
0.6204=the content of carbon in the acetone
With acetone as measuring total carbon evaporable primary standard.Respectively amount of acetone is dissolved in the 1L propyl carbinol, as calibration solution.Extract 2.4 μ L from these solution then and place 12mL head space bottle.Peak area with acetone is mapped to the concentration of calibration solution, obtains a curve with linear relationship.Its slope is calibration factor K[K (G) and is the total carbon volatilization, and K (i) is single material volatilization].The equation of working curve as shown in the formula:
Y＝37.03898X+1.18222
In the formula: the Y=peak area; The concentration of X=calibration sample (μ g/g)
Embodiment 1-14, the TVOC test result of Comparative Examples 1-6 sees the following form 4 respectively, table 5.
The TVOC table with test results of table 4 embodiment 1-14 matrix material
The TVOC table with test results of table 5 Comparative Examples 1-6 matrix material
| Comparative Examples | Comparative Examples 1 | Comparative Examples 2 | Comparative Examples 3 | Comparative Examples 4 | Comparative Examples 5 | Comparative Examples 6 |
| TVOC(μgC/g) | 304.2 | 130.7 | ?80.2 | 228.8 | 201.7 | 183.3 |
Can see that from embodiment 1-14 Hydrogen high silica alumina ratio porous molecular sieve materials addition is 2% can significantly reduce the TVOC content of automobile-used polypropylene modified material, the TVOC value that makes material is less than the testing standard required value.
Can see in conjunction with Comparative Examples 1-6 from embodiment 8-14, in the automobile-used polypropylene modified material of the multiple composite adding of Hydrogen high silica alumina ratio porous molecular sieve materials, play a kind of synergy between the differing molecular sieve, can more effectively adsorb the fugitive constituent organic compound in the material.Under the identical addition, composite two or more Hydrogen high silica alumina ratio molecular sieves are than using single better effects if of planting molecular sieve.
With respect to sodium type molecular sieve, the hydrogen type molecular sieve porous material can more effectively make the TVOC test value of automobile-used polypropylene modified material significantly reduce.The hydrogen type molecular sieve that this explanation is added has the good adsorption effect to the nonpolar volatile organic compound of low molecule in the material, and the microvoid structure of porous material makes the low molecule organic volatile compound in the material stably be adsorbed on hole and the surface.The hydrogen type molecular sieve that silica alumina ratio is higher has better adsorption effect to the TVOC in the polypropylene material.Therefore, the porous molecular screen of selecting the Hydrogen high silica alumina ratio can solve the problem of the low molecule organic volatile compound that polypropylene modified material produces in preparation process as sorbent material.
Claims (10)
1. a low TVOC polypropylene composite for motor vehicles is characterized in that, adds Hydrogen high silica alumina ratio porous molecular screen in polypropylene composite material.
2. low TVOC polypropylene composite for motor vehicles as claimed in claim 1 is characterized in that, high silica alumina ratio is meant that the mol ratio of silicon-dioxide and aluminium sesquioxide is greater than 30.
3. low TVOC polypropylene composite for motor vehicles as claimed in claim 2 is characterized in that, high silica alumina ratio is meant that the mol ratio of silicon-dioxide and aluminium sesquioxide is greater than 40.
4. low TVOC polypropylene composite for motor vehicles as claimed in claim 3 is characterized in that, high silica alumina ratio is meant that the mol ratio of silicon-dioxide and aluminium sesquioxide is greater than 50.
5. low TVOC polypropylene composite for motor vehicles as claimed in claim 1 is characterized in that, described Hydrogen high silica alumina ratio porous molecular screen is the vesicular structure of one or more dimensions, and micropore size is 0.1-60nm, and diameter of particle is greater than 1000 orders.
6. low TVOC polypropylene composite for motor vehicles as claimed in claim 1 is characterized in that, is made by following materials of weight proportions:
Polypropylene 55-95%
Talcum powder 0-35%
Hydrogen high silica alumina ratio porous molecular screen 0.5-5%
Toughner 0-20%.
7. low TVOC polypropylene composite for motor vehicles as claimed in claim 6, it is characterized in that, described polypropylene is one or more of Co-polypropylene or homo-polypropylene, and ethylene content is at 4-10mol% in the Co-polypropylene, and melt flow rate (MFR) (2.16kg/230 ℃) is 5-50g/10min; The degree of crystallinity of homo-polypropylene is more than 70%, and degree of isotacticity is greater than 99%.
8. low TVOC polypropylene composite for motor vehicles as claimed in claim 6 is characterized in that, described talcum powder particle diameter is 3.0-12.0mm.
9. low TVOC polypropylene composite for motor vehicles as claimed in claim 6, it is characterized in that, described toughner is elastomerics, selects one or more mixing in ethene-hexene copolymer, ethylene-butene copolymer, ethylene-octene copolymer, ethylene-propylene-octene terpolymer, the hydrogenation of ethylene-butadiene-styrene copolymer.
10. the preparation method of the described low TVOC polypropylene composite for motor vehicles of claim 6 comprises the steps:
(1) weight proportion by the described component of claim 3 takes by weighing various raw materials;
(2) each component was mixed in high-speed mixer 3-5 minute;
(3) with twin screw extruder with the material that mixes melt extrude, granulation, its processing condition are: 200～210 ℃ in a district, 210～220 ℃ in two districts, 210～220 ℃ in three districts, 200～215 ℃ in four districts; The residence time is 1-2 minute, and pressure is 10-20MPa.
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| CN106519434A (en) * | 2016-11-03 | 2017-03-22 | 宁波尚高新材料有限公司 | High-elasticity hydrophobic composite material and preparation method thereof |
| CN108219259A (en) * | 2018-01-17 | 2018-06-29 | 江林（贵州）高科发展股份有限公司 | A kind of polypropylene material for manufacturing automotive upholstery and preparation method thereof and purposes |
| CN108912504A (en) * | 2018-07-17 | 2018-11-30 | 苏州润佳工程塑料股份有限公司 | A kind of low TVOC polypropene composition of environmental protection and preparation method |
| CN109096598A (en) * | 2018-06-15 | 2018-12-28 | 武汉金发科技有限公司 | A kind of automobile polypropylene odor adsorption master batch and preparation method thereof |
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| CN114540559A (en) * | 2022-02-10 | 2022-05-27 | 山东国瓷功能材料股份有限公司 | Application of molecular sieve material in preparation of leather |
| CN114573941A (en) * | 2022-03-10 | 2022-06-03 | 国高材高分子材料产业创新中心有限公司 | TVOC standard sample of ABS matrix and preparation method thereof |
| CN114805939A (en) * | 2021-06-25 | 2022-07-29 | 安徽星贝达新材料科技有限公司 | Porous adsorption type odor removal master batch, preparation method and application |
| CN115991044A (en) * | 2023-03-23 | 2023-04-21 | 河北泽润工程橡塑有限公司 | Composite heat-insulating waterproof coiled material and production method thereof |
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| CN1840576A (en) * | 2005-04-01 | 2006-10-04 | 上海金发科技发展有限公司 | High-performance low-odour polypropylene dedicated for automobile dashboard and method for preparing same |
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| CN109096598B (en) * | 2018-06-15 | 2021-04-27 | 武汉金发科技有限公司 | Polypropylene odor adsorption master batch for automobile and preparation method thereof |
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| CN111057306A (en) * | 2019-12-25 | 2020-04-24 | 会通新材料(上海)有限公司 | TPV composition and preparation method thereof |
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| CN114573941A (en) * | 2022-03-10 | 2022-06-03 | 国高材高分子材料产业创新中心有限公司 | TVOC standard sample of ABS matrix and preparation method thereof |
| CN114573941B (en) * | 2022-03-10 | 2023-08-18 | 国高材高分子材料产业创新中心有限公司 | TVOC standard sample of ABS (Acrylonitrile butadiene styrene) matrix and preparation method thereof |
| CN115991044A (en) * | 2023-03-23 | 2023-04-21 | 河北泽润工程橡塑有限公司 | Composite heat-insulating waterproof coiled material and production method thereof |
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