CN103319782B - A kind of PP composite material of low smell and preparation method thereof - Google Patents
A kind of PP composite material of low smell and preparation method thereof Download PDFInfo
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- CN103319782B CN103319782B CN201310113597.6A CN201310113597A CN103319782B CN 103319782 B CN103319782 B CN 103319782B CN 201310113597 A CN201310113597 A CN 201310113597A CN 103319782 B CN103319782 B CN 103319782B
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Classifications
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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
-
- 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
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
-
- 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
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- 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
Abstract
The present invention relates to the PP composite material of a kind of low smell, its composition (weight %) is polypropylene 58 98%, talcum powder 0 40%, hydrotalcite oxide HH 600 adsorbent 0.001 0.01, heat stabilizer DSTP 0.1 1.0%, antioxidant 1010 0.1 1.0%, irgasfos 168 0.1 0.5%.Its preparation method is that polypropylene, talcum powder, hydrotalcite oxide HH 600 adsorbent, heat stabilizer DSTP, antioxidant 1010, the mixture of irgasfos 168 composition be placed in double screw extruder through melt extruding, granulation.This composite has the features such as preparation technology is simple, low cost, every physical chemistry excellent combination property, odor property are excellent.
Description
Technical field
The present invention relates to the PP composite material of a kind of low smell, specifically relate to effectively be pressed down by interpolation one
The odor suppressing agents of bad smell in PP composite material processed, thus prepare the PP composite material of a kind of low smell.
The invention still further relates to the preparation method of this composite.
Background technology
In recent years, due to the fast development of polypropylene material through engineering approaches modification technology, therefore, it is in the application of automotive field
More and more extensive.But, as an engineering polypropylene material important component part in automotive field, through engineering approaches gather
The various automotive trim products that propylene material is made, although all can meet corresponding requirements in its serviceability in every respect, but
It is the most all to discharge some niff due to these materials, has therefore suffered from consumer increasing
Query.And, along with people's environment protection health consciousness constantly strengthens, polypropylene material will in the challenge suffered by this one side
Increasingly severe.To this end, in order to expand the polypropylene material application in association area further, it is necessary to search out an effective way
Footpath is to prepare low smell, the most scentless polypropylene material.
Generally, it is believed that the smell of polypropylene material causes due to the following aspects.First, at polypropylene
The catalyst system used in resin matrix building-up process contains some compounds with irritant peculiar smell, such as ester type compound
Or alkane derivative.This compounds can not be removed after resin polymerization completes completely, and they remain in polypropylene tree
In the middle of fat, so that the irritant peculiar smell of polypropylene material band.Secondly, the mistake of processing it is modified at PP matrix
Cheng Dangzhong, acrylic resin more or less can produce the low molecular compound of some degraded when melted, such as ketone, aldehyde
Compounds.These material parts rest in the middle of modified material, progressively give out stimulation during the use of product
The smell of property.Again, some filler components added in modified polypropylene material, such as talcum powder, they equally can be with certain
A little penetrating odors.Finally, some stabilizer added in modified polypropylene material is also with certain excitant peculiar smell.
Round the factor of above-mentioned several respects, people do a lot, and involved basic skills physics nothing more than is inhaled
Attached and the big class of chemical reaction two.
Chemical reaction method refers to add energy and adding that these little molecules discharging smell react in the middle of material prescription
Add agent, produced by reaction between these additives and little molecule that molecular weight is relatively big, use under thermal environment, such as less than normal
100 DEG C, the another kind of compound producing peculiar smell will not be evaporated from material, thus reach to eliminate the effect of peculiar smell.Although
Reaction involved by this method is extremely complex, but owing to can control not affect other property of material on this theoretical method
Can, the most progressively cause the interest of people.
Rifi etc., in United States Patent (USP) USP.4, indicate in 851,499, meeting in the middle of isotactic polypropylene resin polymerization process
Have ester type compound in catalyst system, such as ethyl benzoate, residue, this kind of residue itself is that some bands are irritant
The compound of peculiar smell.For removing these materials contained by PP matrix, the method that he proposes is: use a kind of ester
Change glyceride type compound, a kind of epoxy compounds, a kind of monohydric alcohol or multicomponent alcoholics compound, a kind of fatty acid ester
Compound or the mixture of above-mentioned several compound, by melt extruding above-claimed cpd and acrylic resin, in extrusion
Process in the middle of make these compounds and the esters residue with peculiar smell carry out ester exchange reaction to form other big molecules
Compound is fixed in the middle of resin, thus reaches to remove the purpose of this smell.
Rifi etc., in United States Patent (USP) USP.4, indicate in 851,499, meeting in the middle of isotactic polypropylene resin polymerization process
Have ester type compound in catalyst system, such as ethyl benzoate, residue, this kind of residue itself is that some bands are irritant
The compound of peculiar smell.For removing these materials contained by PP matrix, the method that he proposes is: use a kind of ester
Change glyceride type compound, a kind of epoxy compounds, a kind of monohydric alcohol or multicomponent alcoholics compound, a kind of fatty acid ester
Compound or the mixture of above-mentioned several compound, by melt extruding above-claimed cpd and acrylic resin, in extrusion
Process in the middle of make these compounds and the esters residue with peculiar smell carry out ester exchange reaction to form other big molecules
Compound is fixed in the middle of resin, thus reaches to remove the purpose of this smell.
Burch etc. refer to a kind of method using rosin ester to solve poly-third in United States Patent (USP) USP.5,041,483
The little molecule of the peculiar smell with irritating that alkene material cracks out in the middle of modified thermal histories.
Abe etc. propose a kind of zinc oxide of use, titanium dioxide and the mixing of water in United States Patent (USP) USP5,023,286
Thing solves the talcous odor problem added in modified polypropylene material.
Yui etc., in United States Patent (USP) USP4, use a kind of alkyl 3,5-bis--spy-butyl-4-hydroxyl-carboxylation meat in 080,359
The method of cinnamic acid and dialkyl dipropionate acetate mixture solves added in the middle of modified polypropylene material
The odor problem that a little stabilizers are brought.
These methods above-mentioned, from some angle for, the odor problem of polypropylene material is respectively provided with in various degree
Solve.But, as the polypropylene material that automotive trim product uses, it is at modifying process relevant smell to be considered
Factor is not only wherein certain other factor.First, the fundamental starting point solving this kind of modified polypropylene material smell is certain
Must account for PP matrix from some residue problem with irritant peculiar smell in the middle of polymerization process；Its
Secondary, this kind of modified polypropylene material all has to pass through and melt extrudes granulation, the hot tearing during extruding pelletization to be considered
Solve little molecule problem；Again, the odor problem of the mineral constituent added also must be taken into account；Finally, this kind of polypropylene material
Thermo-oxidative ageing requires the highest, it is therefore necessary to add corresponding stabiliser system, and this must account for stabilizer group
Some odor problem that may bring in point.And above-mentioned various methods are all to stress to improve wherein certain aspect,
The problem that all various aspects produce smell can not be solved.
The little molecule of any generation smell in theory, can be adsorbed by physical absorption, it is therefore possible to right
The various aspects producing smell have the effect of improvement.But, traditional physical adsorption process is typically only capable to be to use activated carbon
As adsorbent, by the micropore in activated carbon, the little molecule discharging smell in macromolecular material is played suction-operated, from
And reduce the smell of material.This method inevitably produces a lot of problem.Firstly, since activated carbon is from the face as black
Look, so can only use in black material.Secondly, activated carbon addition is very big to the Effect on Mechanical Properties of material.Meanwhile, I
Find material with the addition of activated carbon as adsorbent after, owing to the micropore size size distribution in activated carbon is uneven, poor
Heteropole is big, and maximum aperture is right to 1000 Izods greatly, the most often by other intermediate molecular weight additives of adding simultaneously the most together
Absorption, have impact on the most again other characteristics of material, such as thermo-oxidative stability etc..Therefore, this method practical value is little.
If to this end, one can be found effectively to adsorb the generation little molecule of smell, there is no again activated carbon drawbacks described above simultaneously
Sorbing material, then can develop a kind of that can fully take into account above-mentioned each side factor, solve above-mentioned various smells comprehensively and ask
The low smell of topic or scentless PP composite material.
Summary of the invention
It is an object of the invention to provide the polypropylene material of a kind of low smell, specifically relate to by add one can have
Effect reduces the smell remover of polypropylene material smell, thus prepares the polypropylene material of a kind of low smell.Meanwhile, the present invention
Also describe the preparation method of this Low-odor polypropylene material.
For realizing object above, the technical scheme is that in the basic components of polypropylene material, add a kind of smell
Remover, this smell remover can be effectively reduced the smell of polypropylene material.Its feature is, the smell of addition is removed
Agent is that a kind of stratum water talcum oxide, the numbered HH-600 of company, the odor adsorption stronger by this compound and acid absorb
Effect, can effectively reduce polypropylene material and occur thermal cracking to produce asking of little molecule odorous in extrusion process
Topic, and the volatile small molecule of residual in polypropylene material is had stronger suction-operated, other characteristics to material, such as power
Learn performance thermo-oxidative stability etc. and will not produce impact.The PP composite material of this low smell is by the raw material of following weight proportion
It is configured to: (%)
Polypropylene described in above-mentioned formula is highly crystalline homo-polypropylene and block copolymerization propylene, the consumption of different mobility
For 56-96%.Wherein the comonomer of block copolymerization propylene is common for ethene, its content in the range of 4-10mol%, poly-third
The melt flow rate (MFR) (230 DEG C × 2.16kg) of alkene is 5-50g/10min, more commonly used for 5-30g/10min, highly crystalline poly-third
The degree of crystallinity of alkene is more than 70%, and isotacticity is more than 99%；Described talcum powder particle size range is 1-10 micron；Described neatly
Graphite/oxide is layer structure, has the powdered substance that more alkaline the upper limit temperature of heat tolerance is at about 600 DEG C, heated
Cheng Zhong, the ordered lamellar structure of this oxide is destroyed, and surface area increases, and pore volume increases；Antioxidant 1010 is that Ciba company produces,
Product designation Irganox1010, chemical name is four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythrite
Ester；Thermal oxidation stabilizer 168 produces for Ciba company, and product designation Irgafos 168, chemical name is three (2,4-di-t-butyls
Phenyl) phosphite ester；Thermal oxidation stabilizer DSTP is that Ciba company produces, product designation Irganox PS802, and chemical name is β,
β " "-distearyl thiodipropionate.
A kind of preparation method of the PP composite material of low smell, its method is as follows:
(1) raw material is weighed by weight ratio；
(2) by polypropylene, talcum powder, layered di-hydroxyl composite metal oxidate, heat stabilizer DSTP, antioxidant 1010,
Irgasfos 168 is dry mixed 3-5 minute in super mixer；
(4) raw material of mixing is placed in dual-screw-stem machine through melt extruding, granulation, its technique is: a district 180～190 DEG C,
Two districts 200～210 DEG C, three districts 200～210 DEG C, four districts 210～215 DEG C, five districts 210～215, six districts 210～215,7th district
215～225, eight districts 215～225, nine districts 215～225, ten districts 215～225；The time of staying is 1-2 minute, and pressure is 12-
18Mpa。
The present invention uses a kind of multi-component smell to remove system, and this stabiliser system can be effectively reduced effectively
The smell of polypropylene material, thus prepare the PP composite material of a kind of low smell.
The invention have the advantage that
1, present invention uses effective smell and remove system, obtained composite has the characteristic of low smell.
2, the PP composite material of the low smell obtained by the present invention is while ensureing the low odor property of material, material
Every physical and mechanical property excellent.
3, the preparation technology of the PP composite material of the low smell that the present invention proposes is simple, low cost.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail:
In embodiment and comparative example composite-material formula, polypropylene is the highly crystalline homo-polypropylene of different mobility and embedding
Section co-polypropylene, consumption is 56-96%.Wherein the comonomer of block copolymerization propylene is common for ethene, and its content is at 4-
In the range of 10mol%, polyacrylic melt flow rate (MFR) (230 DEG C × 2.16kg) is 5-50g/10min, more commonly used for 5-
30g/10min, the degree of crystallinity of high-crystallinity polypropylene is more than 70%, and isotacticity is more than 99%；Described talcum powder particle size range
For 1-10 micron；Described hydrotalcite oxide is layer structure, has more alkaline the upper limit temperature of heat tolerance at about 600 DEG C
Powdered substance, in heating process, the ordered lamellar structure of this oxide be destroyed, surface area increase, pore volume increase；Anti-
Oxygen agent 1010 is produced for Ciba company, and product designation Irganox1010, chemical name is four (β-(3,5-di-t-butyl-4-hydroxyls
Base phenyl) propionic acid) pentaerythritol ester；Thermal oxidation stabilizer 168 produces for Ciba company, product designation Irgafos 168, chemical name
It is referred to as three (2,4-di-tert-butyl-phenyl) phosphite ester；Thermal oxidation stabilizer DSTP is that Ciba company produces, product designation Irganox
PS802, chemical name is β, β " "-distearyl thiodipropionate.
Embodiment 1
By polypropylene 58.65%, talcum powder 40%, hydrotalcite oxide HH-600 0.1%, heat stabilizer DSTP
0.9%, antioxidant 1010 0.3%, irgasfos 168 0.15% are dry mixed 3-5 minute in super mixer, afterwards, then double
Through melt extruding in screw extruder, granulation, its technique is: a district 180～190 DEG C, two districts 200～210 DEG C, three districts 200～
210 DEG C, four districts 210～215 DEG C, five districts 210～215, six districts 210～215, seven districts 215～225, eight districts 215～225,9th district
215～225, ten districts 215～225；The time of staying is 1-2 minute, and pressure is 12-18Mpa.
Embodiment 2
By polypropylene 58.65%, talcum powder 40%, hydrotalcite oxide HH-600 0.3%, heat stabilizer DSTP
0.9%, antioxidant 1010 0.3%, irgasfos 168 0.15% are dry mixed 3-5 minute in super mixer, afterwards, then double
Through melt extruding in screw extruder, granulation, its technique is: a district 180～190 DEG C, two districts 200～210 DEG C, three districts 200～
210 DEG C, four districts 210～215 DEG C, five districts 210～215, six districts 210～215, seven districts 215～225, eight districts 215～225,9th district
215～225, ten districts 215～225；The time of staying is 1-2 minute, and pressure is 12-18Mpa.
Embodiment 3
By polypropylene 58.65%, talcum powder 40%, hydrotalcite oxide HH-600 0.5%, heat stabilizer DSTP
0.9%, antioxidant 1010 0.3%, irgasfos 168 0.15% are dry mixed 3-5 minute in super mixer, afterwards, then double
Through melt extruding in screw extruder, granulation, its technique is: a district 180～190 DEG C, two districts 200～210 DEG C, three districts 200～
210 DEG C, four districts 210～215 DEG C, five districts 210～215, six districts 210～215, seven districts 215～225, eight districts 215～225,9th district
215～225, ten districts 215～225；The time of staying is 1-2 minute, and pressure is 12-18Mpa.
Embodiment 4
By polypropylene 58.65%, talcum powder 40%, hydrotalcite oxide HH-600 0.07%, heat stabilizer DSTP
0.9%, antioxidant 1010 0.3%, irgasfos 168 0.15% are dry mixed 3-5 minute in super mixer, afterwards, then double
Through melt extruding in screw extruder, granulation, its technique is: a district 180～190 DEG C, two districts 200～210 DEG C, three districts 200～
210 DEG C, four districts 210～215 DEG C, five districts 210～215, six districts 210～215, seven districts 215～225, eight districts 215～225,9th district
215～225, ten districts 215～225；The time of staying is 1-2 minute, and pressure is 12-18Mpa.
Comparative example 1
By polypropylene 98.65%, heat stabilizer DSTP 0.9%, antioxidant 1010 0.3%, irgasfos 168 0.15%
3-5 minute, afterwards, then in double screw extruder through melt extrude, granulation are dry mixed in super mixer, and its technique is: one
District 180～190 DEG C, two districts 200～210 DEG C, three districts 200～210 DEG C, four districts 210～215 DEG C, five districts 210～215,6th district
210～215, seven districts 215～225, eight districts 215～225, nine districts 215～225, ten districts 215～225；The time of staying is that 1-2 divides
Clock, pressure is 12-18Mpa.
Comparative example 2
By polypropylene 58.65%, talcum powder 40%, heat stabilizer DSTP 0.9%, antioxidant 1010 0.3%, antioxidant
168 0.15% are dry mixed 3-5 minute, afterwards, then through melt extruding in double screw extruder, granulation in super mixer, its
Technique is: a district 180～190 DEG C, two districts 200～210 DEG C, three districts 200～210 DEG C, four districts 210～215 DEG C, five districts 210～
215, six districts 210～215, seven districts 215～225, eight districts 215～225, nine districts 215～225, ten districts 215～225；The time of staying
For 1-2 minute, pressure was 12-18Mpa.
Performance evaluation mode and the standard of implementation:
The particulate material completing granulation as stated above is dried 2～3 in advance in the convection oven of 90～100 DEG C little
Time, more dried particulate material is carried out on injection (mo(u)lding) machine injection moulding sample preparation.
Tensile property test is carried out by ISO 527-2, and specimen size is 150*10*4mm, and draw speed is 50mm/min；
Bending property test is carried out by ISO 178, and specimen size is 80*10*4mm, and rate of bending is 2mm/min, and span is 64mm；Letter
Strutbeam impact strength is carried out by ISO 179, and specimen size is 80*6*4mm, and notch depth is 1/3rd of sample thickness；Heat
Deformation temperature is carried out by ISO 75, and specimen size is 120*10*3.0mm, and load is 1.8MPa；The thermal-oxidative aging property of material is pressed
ISO4577 is carried out, and specimen size is 50*10*10mm, and test temperature is 150 DEG C；The odor property of material presses germany volkswagen automobile
Company PV3900 tests, and sample mass is 40～60g, and container capacity size is 1 liter；Material organic compound volatility is pressed
Self-defined standard is tested, and sample mass is 10, and placing temperature is 100 DEG C, and standing time is 16 hours.
The comprehensive mechanical property of material is by testing the hot strength of gained, elongation at break, bending modulus, thermal denaturation temperature
The numerical value of degree and impact strength is passed judgment on；When the thermal-oxidative aging property of material is according to the heat oxygen aging resistance measured by standard
Between length pass judgment on: the time is the longest, and the heatproof air aging performance of material is the best；The odor property of material is according to standard regulation point
For: 1 grade: odorlessness, 2 grades: scent of, but non interference smell, 3 grades: have an obvious smell, but non interference smell, 4 grades: have
Interference smell, 5 grades: have a strong interference smell, 6 grades: have insupportable smell；Material organic compound volatility according to
Formula: volatility %=(material initial mass-material quality after placement fixed by standard gauge)/material initial mass *
100%, calculate, the numerical value the highest expression material organic compound volatility calculating gained is the biggest, otherwise the least.
Embodiment 1-10 and the formula of comparative example 1-7 and properties test result see below each table:
Table 1 embodiment 1-4 formula and material property table
Table 3 comparative example 1-5 formula and material property table
| Composite title | Comparative example 1 | Comparative example 2 | |||
| Polypropylene (%) | 98.65 | 58.65 | |||
| Talcum powder (%) | - | 40 | |||
| 168 (%) | 0.15 | 0.15 | |||
| 1010 (%) | 0.3 | 0.3 | |||
| DSTP (%) | 0.9 | 0.9 | |||
| Unnotched impact strength (kJ/m2) | Constantly | 25 | |||
| Notch impact strength (kJ/m2) | 15 | 2.5 | |||
| Hot strength (MPa) | 26 | 33 | |||
| Elongation at break (%) | 95 | 5.4 | |||
| Bending strength (MPa) | 34 | 51 | |||
| Bending modulus (MPa) | 1850 | 4010 | |||
| Thermal-oxidative aging property (H) | 1650 | 1480 | |||
| Oder levels | 4.0 | 4.5 | |||
| Organic compound volatility (%) | 0.935 | 1.23 |
From embodiment 1-4 with the contrast of comparative example 1,2 it will be seen that the interpolation of hydrotalcite oxide HH-600 makes PP material
The smell of material significantly reduces, the generation explanation hydrotalcite oxide HH-600 adsorbent of this phenomenon volatile matter to producing smell
There is good adsorption effect.Simultaneously hydrotalcite oxide HH-600 adsorbent can competitively with PP hot tearing in process
Solving the combined with radical produced, terminating the chain reaction caused by free radical, so showing PP material volatile organic content
Low characteristic.
It can also be seen that from embodiment 1-4 the addition of hydrotalcite oxide HH-600 adsorbent controls about 0.3%
Most widely suited.Now, material not only possesses good odor property and the low characteristic of volatile organic content.
It can be seen that the interpolation of hydrotalcite oxide HH-600 adsorbent is right from embodiment 1-4 with the contrast of comparative example 2
The key property of material has little to no effect, so need not material is carried out toughening modifying.
Claims (8)
1. one kind low smell PP material, it is characterised in that adding a kind of smell remover, it is joined by the raw material of following weight proportion
Make:
Described low smell PP material, obtains according to following preparation process:
A, weigh raw material by weight ratio；
B, by steady to polypropylene, talcum powder, hydrotalcite oxide HH-600 adsorbent, heat stabilizer DSTP, antioxidant 1010, hot oxygen
Determine agent 168 to be dry mixed in super mixer 3-5 minute；
C, being placed in dual-screw-stem machine through melt extruding by the raw material of mixing, granulation, its technique is: a district 180～190 DEG C, 2nd district
200～210 DEG C, three districts 200～210 DEG C, four districts 210～215 DEG C, five districts 210～215 DEG C, six districts 210～215 DEG C, 7th district
215～225 DEG C, eight districts 215～225 DEG C, nine districts 215～225 DEG C, ten districts 215～225 DEG C；The time of staying is 1-2 minute, pressure
Power is 12～18MPa.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that described polypropylene is not
With highly crystalline homo-polypropylene and the block copolymerization propylene of mobility, consumption is 58.65%-96%, wherein block copolymerization propylene
Comonomer is ethene, and its content is in the range of 4-10mol%, and polyacrylic melt flow rate (MFR) is 5-50g/10min, institute
Stating polyacrylic melt flow rate (MFR) condition is 230 DEG C × 2.16kg, the degree of crystallinity of high-crystallinity polypropylene more than 70%, isotactic
Degree is more than 99%.
A kind of low odor polypropylene composite material the most according to claim 2, it is characterised in that described polyacrylic melt
Flow rate is 5-30g/10min, and described polyacrylic melt flow rate (MFR) condition is 230 DEG C × 2.16kg.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that described talcum powder particle diameter
Scope is 1-10 micron.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that described hydrotalcite oxidation
The upper limit temperature of heat tolerance of thing HH-600 adsorbent is 600 DEG C, and in heating process, the ordered lamellar structure of this oxide is broken
Bad, surface area increases, and pore volume increases.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that antioxidant 1010 is Ciba
Company produces, and product designation Irganox 1010, chemical name was four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) seasons
Doutrate.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that thermal oxidation stabilizer 168 is
Ciba company produces, and product designation Irgafos 168, chemical name is three (2,4-di-tert-butyl-phenyl) phosphite ester.
A kind of low odor polypropylene composite material the most according to claim 1, it is characterised in that described thermal oxidation stabilizer
DSTP is that ICE company of Britain produces, and product designation Negonox DSTP, chemical name is thio-2 acid octadecyl ester.
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