CN104262782A - Ultralow-emission glass-fiber-reinforced polypropylene composite material and preparation method thereof - Google Patents
Ultralow-emission glass-fiber-reinforced polypropylene composite material and preparation method thereof Download PDFInfo
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- 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
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- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C48/145—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the particular extruding conditions, e.g. in a modified atmosphere or by using vibration at a venting zone
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29C48/25—Component parts, details or accessories; Auxiliary operations
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- 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
- B29C48/50—Details of extruders
- B29C48/505—Screws
- B29C48/64—Screws with two or more threads
- B29C48/655—Screws with two or more threads having three or more threads
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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
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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
- B29C2948/00—Indexing scheme relating to extrusion moulding
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- 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
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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
- 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
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Abstract
The invention discloses an ultralow-emission glass-fiber-reinforced polypropylene composite material and a preparation method thereof. The material comprises the following components in percentage by weight: 51.2-93.2% of polypropylene, 5.0-40.0% of glass fiber, 1.0-5.0% of compatilizer, 0.5-2.0% of volatilization assistant, 0.1-0.5% of antioxidant, 0.1-0.3% of photostabilizer and 0.1-1.0% of lubricant. The preparation method comprises the following steps: mixing the components in a high-speed mixer, and carrying out extrusion granulation under dual vacuum conditions by using a double screw extruder to obtain the ultralow-emission glass-fiber-reinforced polypropylene composite material. The ultralow-emission glass-fiber-reinforced polypropylene composite material has extremely low smell, and completely satisfies the requirements of the automobile host plant for smell; the TVOC (total volatile organic compound) content is much lower than the host plant standard; and the composite material has the same properties as the existing material, and thus, can be completely substituted for the existing material.
Description
Technical field
The present invention relates to a kind of glass fiber reinforced polypropylene composite material, be specifically related to a kind of ultralowly distribute glass fiber reinforced polypropylene composite material and preparation method thereof.
Background technology
Along with the fast development of automotive industry, the time that people rest in car is more and more longer, and the Air quality in car will affect the health of people to a greater extent.The formal enforcement of domestic first national standard for in-car air quality " in passenger car Air Quality Evaluation guide " GB/T 27630, how this also will improve in-car air quality has been pushed study hotspot again to.Research finds, the air pollution degree in car is sometimes higher than 10 outside car times.The main source of automobile bodies internal contamination air is the VOC discharge of interior material, the multiple volatile organic compounds such as free formaldehyde, alkane, benzene,toluene,xylene and aldehydes that the textiles used, leather product or plastics etc. evaporate.These volatile organic compounds can cause the disease of the aspect such as respiratory tract and neural system, drastically influence the healthy of people.
Fiber glass reinforced polypropylene material is more and more applied due to characteristics such as its density is light, good rigidlies on automobile.Fiber glass reinforced polypropylene material needs to add compatilizer to improve the interface compatibility of glass and resin usually, compatilizer remains owing to there being superoxide, glass fiber reinforced materials very easily brings smell and VOC problem, and therefore, low smell, low VOC fiber glass reinforced polypropylene become a study hotspot always.
Chinese patent CN 103342859 A discloses a kind of low smell, low VOC glass fiber reinforced polypropylene composite material and preparation method thereof, described material comprises each component of following weight percent content: polypropylene 53 ~ 83%, glass 10 ~ 40%, compatilizer 2 ~ 5%, deodovization agent 1 ~ 2%, auxiliary agent 0.1 ~ 0.3%; This invention also relates to the preparation method of previous materials, comprises the steps: that percentage ratio takes each component by weight, puts into high-speed mixer and mixing, discharging, then uses twin screw extruder extruding pelletization.The mixture that the deodovization agent used in this patent of invention is nano zine oxide and nano titanium oxide, these two kinds of materials are two kinds of conventional white pigments, play painted and promote the effect of whiteness, which has limited the use of true qualities material and coloured material.
China Patent Publication No. CN102030945A discloses a kind of low smell glass fiber reinforced polypropylene composite material and preparation method thereof, described material comprises each component of following weight percent content: polypropylene 32-91%, glass 5.0 ~ 50%, compatilizer 2 ~ 8%, odor suppressing agents (zinc ricinate, the compound system of metal oxide and clay pit object) 1 ~ 6%, other auxiliary agents 1 ~ 4%; During preparation, percentage ratio takes each component by weight, by other components except glass and odor suppressing agents premix, is placed in twin-screw extrusion owner spout, adds glass, blended, 220 ~ 240 DEG C of extruding pelletizations.Reduce material smell in this patent of invention and use odor suppressing agents, play and stop distributing of material, but what this method played is adsorption, smell and small molecule material are still at material internal, in the process that material uses afterwards, meeting slow releasing, fundamentally cannot solve smell and VOC problem.
Summary of the invention
The object of the invention is to overcome the defect that above-mentioned prior art exists, provide a kind of and ultralowly distribute glass fiber reinforced polypropylene composite material and preparation method thereof.Of the present invention ultralow distribute that fiber glass reinforced polypropylene material uses help wave agent for a kind of take polypropylene as the Polymer surfactants aqueous solution of carrier; Effectively can adsorb in the process that this aqueous solution mixes at material molten and dissolve smell in matrix material and small-molecule substance, through vacuum port Duan Shike by vacuum removal, reach and fundamentally reduce matrix material smell and TVOC, really realize zero to remain, and this help to wave adding of agent the mechanical property of materials and outward appearance are had no effect, the later stage of material is paintedly also had no effect.Simultaneously in preparation method, the present invention passes through improvement of production process, traditional transfer block element replacement is become the above SME element of large pitch 72/72mm by the screw combinations arrangement of vacuum port section, for devolatilization provides more mass transfer area, higher shearing rate and longer residence time of material, and multiple venting port is set, increase vacuum tightness simultaneously, thus prepare and ultralowly distribute glass fibre reinforced composite material.The present invention is ultralow, and to distribute glass fiber reinforced polypropylene composite material completely alternative with glass fiber reinforced polypropylene composite material.
The object of the invention is to be achieved through the following technical solutions:
The present invention relates to and a kind of ultralowly distribute glass fiber reinforced polypropylene composite material, described material comprises each component of following weight percent content:
Preferably, described polypropylene is selected from one or both the mixture in homo-polypropylene, Co-polypropylene.Husky Bick Co-polypropylene can be selected, melt and refer to 29g/10min.
Preferably, described glass is alkali-free roving, and diameter is 10 ~ 14 microns.As: megalith 988A.
Preferably, described compatilizer is the low smell maleic anhydride graft polypropylene compatilizer of ultra low residual, and percentage of grafting is 1.0 ~ 1.6%.5001-T is risen as: Shanghai day.
Preferably, helping described in and waving agent is take polypropylene as the aqueous solution of carrier polymer surfactant.S72 is risen as: Shanghai day.
Preferably, described oxidation inhibitor is selected from the compound of phosphite ester kind antioxidant and phenolic antioxidant.Wherein, the mass ratio of phosphite ester kind antioxidant and phenolic antioxidant is 1: 1.Phosphite ester kind antioxidant can select 168, and phenolic antioxidant can select 1010.
Preferably, described photostabilizer is selected from hindered amine light stabilizer, as: the special 3853s of cyanogen.
Preferably, described lubricant is ethylene bis stearamide.
The invention still further relates to the described ultralow preparation method distributing glass fiber reinforced polypropylene composite material, said method comprising the steps of:
A, by except glass with help all the other components of waving except agent to put into high-speed mixer and mixing 6 ~ 10min; Help described in adding and wave agent mixing 1 ~ 3min; Compound is sent into twin-screw extrusion owner spout;
B, described glass add through forcing machine glass fiber opening, blended with described compound, melt extrude granulation, obtained ultralowly distribute glass fiber reinforced polypropylene composite material; Described glass fiber content adds number of share of stock and feeding state modulator by glass.
Preferably, described Assembled Twin Screw Extruder Screw is through specific configuration, to arrange in devolatilization district three above SME elements of large pitch 72/72mm (fluting screw thread hybrid element), fluting is arranged to twin screw extruder the 5th district and the 6th district and the 9th district simultaneously, wherein the 5th district, the 9th district connect vacuum, 6th district's opening is used for later stage interpolation glass, i.e. forcing machine glass fiber opening.
Preferably, the extrusion temperature of described twin screw extruder is 200 ~ 230 DEG C, and rotating speed is 250 ~ 300 revs/min, the two vacuum of access (i.e. the fluting access vacuum in the 5th district, the 9th district), vacuum tightness≤-0.08MPa.
Compared with prior art, the present invention has following beneficial effect:
The present invention waves agent by using the Polymer surfactants aqueous solution that can remove completely as helping, then by the adjustment of technique and the extracting of vacuum, is fundamentally removed the glass fibre reinforced composite material of smell and VOC.The ultralow emitting materials that the present invention obtains has low smell, the feature of low TVOC value, and simultaneously the mechanical property of materials is excellent, and tint permanence is excellent, is applicable to automotive upholstery and has the field such as household electrical appliances of particular requirement.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
In following examples, polypropylene is husky Bick Co-polypropylene, melts and refers to 29g/10min; Glass is alkali-free roving megalith 988A; Compatilizer be low smell maleic anhydride graft polypropylene Shanghai day rise 5001-T, help wave agent be with polypropylene be carrier Polymer surfactants aqueous solution Shanghai day rise S72, oxidation inhibitor is that phosphite ester kind antioxidant and Hinered phenols antioxidant 1: 1 are composite, is preferably the composite of irgasfos 168 and antioxidant 1010; Photostabilizer is hindered amines (photostabilizer 3346); Lubricant is ethylene bis stearamide.
In following examples and comparative example, twin screw extruder the 5th district and the 6th district and the 9th district arrange fluting, and wherein the 5th district, the 9th district are used for connecing vacuum, and the 6th district's opening is used for the later stage and adds glass, i.e. forcing machine glass fiber opening.The processing parameter adopted is respectively: the extrusion temperature of twin screw extruder is 200 DEG C, and the rotating speed of twin screw extruder is 300 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, vacuum tightness=-0.08MPa; Or the extrusion temperature of twin screw extruder is 220 DEG C, the rotating speed of twin screw extruder is 280 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, vacuum tightness=-0.08MPa; Again or the extrusion temperature of twin screw extruder be 230 DEG C, the rotating speed of twin screw extruder is 250 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, vacuum tightness=-0.08MPa; Again or twin screw extruder temperature be 230 DEG C, the rotating speed of twin screw extruder is 250 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mm regular screw threads delivery elements, vacuum tightness=-0.08MPa; Again or twin screw extruder temperature be 230 DEG C, the rotating speed of twin screw extruder is 250 revs/min, and screw combinations is that devolatilization section is arranged 4 52/52mm regular screw threads delivery elements, vacuum tightness=-0.08MPa.
embodiment 1
The present embodiment relates to and a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together with glass is except helping and waving agent, then add to help and wave agent mixing 2min, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtained ultralowly distributes glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 200 DEG C, and screw speed is at 300 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, opens two vacuum, vacuum tightness=-0.08MPa.
embodiment 2
The present embodiment relates to and a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together with glass is except helping and waving agent, then add to help and wave agent mixing 2min, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtained ultralowly distributes glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 220 DEG C, and screw speed is at 280 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, opens two vacuum, vacuum tightness=-0.08MPa.
embodiment 3
The present embodiment relates to and a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together with glass is except helping and waving agent, then add to help and wave agent mixing 2min, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtained ultralowly distributes glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 230 DEG C, and screw speed is at 250 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, opens two vacuum, vacuum tightness=-0.08MPa.
comparative example 1
This comparative example relates to a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of this comparative example specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high mixer mixing 8min together by proportioning, again this compound put into twin screw extruder extruding pelletization except glass, glass adds through forcing machine glass fiber opening by when extruding, content, by glass number of share of stock and feeding state modulator, obtains glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 200 DEG C, and screw speed is at 300 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, opens two vacuum, vacuum tightness=-0.08MPa.
comparative example 2
This comparative example relates to a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high mixer mixing 8min, discharging together by proportioning except glass, again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtains glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 200 DEG C, and screw speed is at 300 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, does not open vacuum.
comparative example 3
This comparative example relates to a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together except glass, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtains glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 220 DEG C, and screw speed is at 280 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mmSME elements, opens two vacuum, vacuum tightness=-0.08MPa.
comparative example 4
This comparative example relates to a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of the present embodiment specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together except glass, devolatilization agent, then add devolatilization agent mixing 2min, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtains glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 230 DEG C, and screw speed is at 250 revs/min, and screw combinations is that devolatilization section is arranged 3 sections of 72/72mm regular screw threads delivery elements, opens two vacuum, vacuum tightness=-0.08MPa.
comparative example 5
This comparative example relates to a kind of ultralowly distributes glass fiber reinforced polypropylene composite material, its component and consumption as shown in table 1.The ultralow preparation of distributing glass fiber reinforced polypropylene composite material of this comparative example specifically comprises the steps:
1, raw material is taken by the weight percent content shown in table 1:
2, raw material is put into high-speed mixer and mixing 8min together except glass, devolatilization agent, then add devolatilization agent mixing 2min, discharging; Again this compound is put into twin screw extruder extruding pelletization, glass adds through forcing machine glass fiber opening by when extruding, and content, by glass number of share of stock and feeding state modulator, obtains glass fiber reinforced polypropylene composite material.Wherein, technological temperature is at 230 DEG C, and screw speed is at 250 revs/min, and screw combinations is that devolatilization section is arranged 4 sections of 52/52mm regular screw threads delivery elements, opens two vacuum, vacuum tightness=-0.08MPa.
comparative example 6
Commercially available common 30% fiber glass reinforced polypropylene material.
Table 1
Commercially available common 30% glass fiber reinforced polypropylene composite material of glass fiber reinforced polypropylene composite material obtained in embodiment 1 ~ 3 and comparative example 1 ~ 5 and comparative example 6 is pressed smell by popular VW50180 standard testing, and TVOC is by popular PV3341 standard testing.Mechanical property presses ASTM standard testing.Result is as shown in table 2:
Table 2
By in table 2, embodiment 1 compares with comparative example 1,2, and embodiment 2 and comparative example 3 is more known, adds to help and waves agent and significantly can reduce oder levels and total carbon TVOC value; Wherein, comparative example 2 had not both been added to help and had been waved agent, and also do not open two vacuum, the total carbon TVOC value of its correspondence is even up to 6 times of embodiment 1.The difference of comparative example 4,5 and embodiment 3 is, devolatilization section is arranged 3 sections of 72/72mm regular screw threads delivery elements, 4 sections of 52/52mm regular screw threads delivery elements; As shown in Table 2, when component and technique consistent, the present invention significantly can reduce the total carbon TVOC value of material at devolatilization section 3 sections of 72/72mmSME elements of arranging.Embodiment 1,2,3, due to the difference of glass add-on, causes the mechanical property of material and notched Izod impact strength to have larger difference, but it all possesses and all possesses extremely low smell and total carbon TVOC value; That is, in practical application, the add-on of glass can be regulated according to the requirement of material mechanical performance; But can be clear and definite, adopt of the present invention helping to wave agent and specific screw combinations, extremely low smell can be obtained and the ultralow of total carbon TVOC value distributes ripple fiber reinforced polypropylene material.
In sum, the ultralow of preparation of the present invention distributes ripple fiber reinforced polypropylene material, has extremely low smell and total carbon TVOC value, and simultaneously material has excellent mechanical property, is applicable to automotive upholstery and has the field such as household electrical appliances of particular requirement.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. ultralowly distribute a glass fiber reinforced polypropylene composite material, it is characterized in that, described material comprises each component of following weight percent content:
2. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described polypropylene is selected from one or both the mixture in homo-polypropylene, Co-polypropylene.
3. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described glass is selected from the alkali-free roving that diameter is 10 ~ 14 microns.
4. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described compatilizer is selected from maleic anhydride inoculated polypropylene compatilizer, and the percentage of grafting of described maleic anhydride inoculated polypropylene is 1.0 ~ 1.6%.
5. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described in help that to wave that agent is selected from polypropylene be the aqueous solution of carrier polymer surfactant.
6. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described oxidation inhibitor is selected from the compound of phosphite ester kind antioxidant and phenolic antioxidant.
7. according to claim 1ly ultralowly distribute glass fiber reinforced polypropylene composite material, it is characterized in that, described photostabilizer is selected from hindered amine light stabilizer; Described lubricant is ethylene bis stearamide.
8. the ultralow preparation method distributing glass fiber reinforced polypropylene composite material according to any one of claim 1 ~ 7, is characterized in that, said method comprising the steps of:
A, by except glass with help all the other components of waving except agent to put into high-speed mixer and mixing; Help described in adding and wave agent and be mixed; Compound is sent into twin-screw extrusion owner spout;
B, described glass add through glass fiber opening of double-screw extruding machine, blended with described compound, melt extrude granulation, obtained ultralowly distribute glass fiber reinforced polypropylene composite material.
9. the ultralow preparation method distributing glass fiber reinforced polypropylene composite material according to claim 8, is characterized in that, the devolatilization district of described twin screw extruder arranges the fluting screw thread hybrid element of three more than large pitch 72/72mm; Described twin screw extruder the 5th, six, 9th district are respectively equipped with fluting, wherein the fluting in the 5th district, the 9th district is used for connecing vacuum, and the fluting in the 6th district is used for the later stage and adds glass.
10. the ultralow preparation method distributing glass fiber reinforced polypropylene composite material according to claim 8 or claim 9, it is characterized in that, the extrusion temperature of described twin screw extruder is 200 ~ 230 DEG C, and rotating speed is 250 ~ 300 revs/min, the two vacuum of access, vacuum tightness≤-0.08MPa.
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| CN107987398A (en) * | 2017-11-24 | 2018-05-04 | 广东威林工程塑料股份有限公司 | A kind of support insulator high durable high tenacity reinforced polypropylene material and preparation method thereof |
| CN109762247A (en) * | 2018-12-25 | 2019-05-17 | 合肥卡洛塑业科技有限公司 | A kind of high heat resistance oxygen aging glass fiber reinforced polypropylene composite material and preparation method thereof |
| CN110964260A (en) * | 2019-12-13 | 2020-04-07 | 天津金发新材料有限公司 | Low-odor low-TVOC polypropylene composite material and preparation method thereof |
| CN110964260B (en) * | 2019-12-13 | 2022-06-14 | 天津金发新材料有限公司 | Low-odor low-TVOC polypropylene composite material and preparation method thereof |
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