CN103044770B - A kind of low smell, high-performance long glass fiber reinforced polypropylene material and manufacture method thereof - Google Patents

A kind of low smell, high-performance long glass fiber reinforced polypropylene material and manufacture method thereof Download PDF

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CN103044770B
CN103044770B CN201210549249.9A CN201210549249A CN103044770B CN 103044770 B CN103044770 B CN 103044770B CN 201210549249 A CN201210549249 A CN 201210549249A CN 103044770 B CN103044770 B CN 103044770B
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glass fiber
long glass
polypropylene
master batch
steeping vat
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CN103044770A (en
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谭彪
陈永东
李宏
张祥福
周文
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Shanghai Pret Composites Co Ltd
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Shanghai Pret Composites Co Ltd
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Abstract

The invention discloses a kind of low smell, high-performance Long Glass Fiber Reinforced PP Composite and preparation method thereof, calculate by mass percentage, its formula for raw stock is as follows: polypropylene: 24.5 ~ 91.9%; Long glass fibres: 5 ~ 50%; Chemistry deodovization agent: 0.5 ~ 4%; Polypropylene compatilizer: 2 ~ 15%; Oxidation inhibitor: 0.5 ~ 3.5%; Processing aid: 0.1 ~ 3%.Compared with prior art, tool of the present invention has the following advantages: the low smell of the present invention, high-performance long glass fiber-reinforced polypropylene materials, when ensureing also to keep strong mechanical performance, high thermal stability material has low smell outstanding especially, can meet the main engine plants such as masses, Ford to the requirement of long glass fiber-reinforced polypropylene materials odor properties, mechanical property completely.

Description

A kind of low smell, high-performance long glass fiber reinforced polypropylene material and manufacture method thereof
Technical field
The present invention relates to a kind of long glass fiber-reinforced polypropylene materials, relate in particular to a kind of low smell, high-performance long glass fiber reinforced polypropylene material and manufacture method thereof, belong to polypropylene material technical field of modification.
Invention field
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art, provides the low smell of a kind of gas, high-performance long glass fiber reinforced polypropylene material.
The present invention also provides the preparation method of two kinds of above-mentioned low smells, high-performance Long Glass Fiber Reinforced PP Composite.
For solving the problems of the technologies described above, the present invention takes technical scheme as follows:
A kind of low smell, high-performance Long Glass Fiber Reinforced PP Composite, calculate by mass percentage, its formula for raw stock is as follows:
Polypropylene: 24.5 ~ 91.9%;
Long glass fibres: 5 ~ 50%;
Chemistry deodovization agent: 0.5 ~ 4%;
Polypropylene compatilizer: 2 ~ 15%;
Oxidation inhibitor: 0.5 ~ 3.5%;
Processing aid: 0.1 ~ 3%.
Described polyacrylic melt flow rate (MFR) is 40 ~ 250g/10min.
Described long glass fibres is continuous alkali-free glass fiber, and glass diameter is 10 ~ 25 μm.
Described chemical deodovization agent is the composition of one or more chemical deodovization agents.Typical chemical deodovization agent is as sequestrant etc.Described sequestrant is hyperbranched polyether modification sequestrant, is selected from hyperbranched glycidyl ether modified diethyl pentetic acid, hyperbranched glycidyl ether modified dodecane tetraacethyl and hyperbranched glycidyl ether modified ethylenediamine tetraacetic acid (EDTA).
Described compatilizer is toxilic acid and derivative, vinylformic acid, glycidyl acrylate and polypropylene grafted graft polypropylene, and percentage of grafting is 0.5 ~ 2.2%.
Described oxidation inhibitor is antioxidant 1010, irgasfos 168, oxidation inhibitor DSTP, antioxidant 3114, oxidation inhibitor 619F, the mixture of one or more in oxidation inhibitor 627.
Described processing aid comprises the mixture of one or more in stearic acid, stearate, polyolefin-wax, polysiloxane.
Above-mentioned low smell, the preparation for processing of high-performance Long Glass Fiber Reinforced PP Composite comprise following two kinds:
Method one: directly pultrusion pickling process:
1) first through forcing machine plastifying fusion after polypropylene, chemical deodovization agent, compatilizer, oxidation inhibitor, processing aid being mixed according to formula, then melt is inputted steeping vat, steeping vat temperature is set to 250 ~ 350 DEG C;
2) continuous long glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials.
Preferred material particles length is 8-18mm.
Method two: batch mixed method:
Step 1: prepared by long glass fiber-reinforced polypropylene master batch.First through forcing machine plastifying fusion after polypropylene, compatilizer, processing aid being mixed according to formula, then melt is inputted steeping vat, steeping vat temperature is set to 250 ~ 350 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, preferred particle length is 8-18mm.
Step 2: prepared by low odor polypropylene master batch.Join in twin screw extruder by polypropylene, low smell auxiliary agent, oxidation inhibitor, melt blending is extruded, and then obtain low odor polypropylene master batch through cooling and pelletizing, preferred particle length is 8-18mm.
Step 3: the low odor polypropylene master batch that the long glass fiber-reinforced polypropylene master batch obtained by step 1 and step 2 obtain mixes and namely obtains low smell, high-performance Long Glass Fiber Reinforced PP Composite, and generally in this material, the particle length of long glass fiber-reinforced polypropylene master batch and low odor polypropylene master batch is identical.
When the low smell of the present invention, high-performance long glass fiber-reinforced polypropylene materials use, directly can be injection molded into part, without the need to other complicated procedures of forming.
Compared with prior art, tool of the present invention has the following advantages:
The low smell of the present invention, high-performance long glass fiber-reinforced polypropylene materials, when ensureing also to keep strong mechanical performance, high thermal stability material has low smell outstanding especially, can meet the main engine plants such as masses, Ford to the requirement of long glass fiber-reinforced polypropylene materials odor properties, mechanical property completely.
The preparation method of the low smell of the present invention, high-performance long glass fiber-reinforced polypropylene materials is flexible, both can take direct pultrusion pickling process, and can take again to make long glass fiber-reinforced polypropylene master batch, low odor polypropylene master batch respectively, both are criticized mixed uniform batch mixed method again.Not only efficiency is high for preparation method so flexibly, and economy is better, and can also meet different raw-material processing request, therefore process controllability is extremely strong, and material property is more stable.
Background technology
Long glass fiber-reinforced polypropylene materials has lightweight, the feature such as intensity is high, good impact resistance, good stability of the dimension, be can be used to alternative traditional enhancement engineering plastics even metallic substance such as steel in actual applications.In recent years, along with the progress of automotive light weight technology, long glass fiber-reinforced polypropylene materials relies on the high advantage of its cost performance to be applied in automotive industry more and more widely as with the main raw moulding Dai Gang, long glass fiber-reinforced polypropylene materials is adopted to make automobile component performance suitable with steel component parts performance, but weight reduces 40% even more, and economy is also better.
Long glass fiber reinforced material is widely used for as component such as instrument board framework, air channel, multiple bays in automobile industry.Existing long glass fiber-reinforced polypropylene materials is ensure that material property can include the poor material of other smells such as treating compound, compatilizer in the material, and thus the smell of long glass fiber-reinforced polypropylene materials is also relatively poor.
Along with the lifting of life idea, the requirement of people to automobile is also more and more higher.Macromolecular material and polymer composite are as the main raw of automotive upholstery, and its smell height has larger impact to smell in car.If smell is larger in car, not only have a strong impact on reading with car body of human consumer, also have adverse influence to the health of passenger, therefore, each main engine plants also pay attention to more to in-car air quality, propose higher odor property requirement to automotive material especially interior trim plastic material.Only have low smell, high-performance long glass fiber-reinforced polypropylene materials could meet the more and more stricter requirement of automotive industry.
Embodiment
Further illustrate technical characterstic of the present invention below by embodiment and comparative example, do not violating under aim of the present invention, the present invention should be not limited to the content that following examples are specifically expressed.
Embodiment raw materials is as follows:
PP-1: melt flow rate (MFR) is 40g/10min;
PP-2: melt flow rate (MFR) is 120g/10min;
PP-3: melt flow rate (MFR) is 240g/10min;
Roving glass fiber: 362K, megalith group;
Chemistry deodovization agent A: hyperbranched glycidyl ether modified diethyl pentetic acid;
Chemistry deodovization agent B: hyperbranched glycidyl ether modified dodecane tetraacethyl
Chemistry deodovization agent C: hyperbranched glycidyl ether modified ethylenediamine tetraacetic acid (EDTA)
Compatilizer: maleic anhydride inoculated polypropylene, percentage of grafting: 1.0%, melting means: 150;
Oxidation inhibitor: 619F and 1010: Ciba fine chemicals;
Processing aid: calcium stearate.
Product performance testing method:
Tensile property: by ISO527 standard, speed 5mm/min.
Bending property: by ISO178 standard, speed 2mm/min.
Notched Izod impact strength: by ISO179 standard.
Heat-drawn wire: according to ISO75 standard, load is 1.8MPa.
Smell: according to Ford FLTMBO131-03 standard, temperature is 80 DEG C.
Condensed components: according to Ford SAEJ1756 standard.
Embodiment 1:
Take directly to squeeze pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 250 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation under transmission mechanism effect, gained material pulls out steeping vat and cooling and dicing, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 5%, and particle length is 8mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Embodiment 2:
Take directly to squeeze pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 280 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation under transmission mechanism effect, gained material pulls out steeping vat and cooling and dicing, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 20%, and particle length is 11mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Embodiment 3:
Take directly to squeeze pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 310 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation under transmission mechanism effect, gained material pulls out steeping vat and cooling and dicing, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 45%, and particle length is 14mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Embodiment 4:
Take directly to squeeze pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 350 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation under transmission mechanism effect, gained material pulls out steeping vat and cooling and dicing, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 50%, and particle length is 18mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Embodiment 5:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 1.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 300 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 8mm.
Step 2: prepare low odor polypropylene master batch 1.According to the formula in table 3, all raw materials are mixed rear employing twin screw extruder to melt extrude, through cooling and dicing, obtained low odor polypropylene master batch 1, this master batch length is 8mm.
Step 3: the low odor polypropylene master batch 1 that the long glass fiber-reinforced polypropylene master batch 1 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, in material after mixing, glass fiber content is 5%, adopt injection moulding machine preparation standard test sample, test result is in table 4.
Embodiment 6:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 2.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 320 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 12mm.
Step 2: prepare low odor polypropylene master batch 2.According to the formula in table 3, all raw materials are mixed the rear twin screw extruder that first adopts to melt extrude, through cooling and dicing, obtained low odor polypropylene master batch 2, this master batch length is 12mm.
Step 3: the low odor polypropylene master batch 2 that the long glass fiber-reinforced polypropylene master batch 2 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, in material after mixing, glass fiber content is 15%, adopt injection moulding machine preparation standard test sample, test result is in table 4.
Embodiment 7:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 2.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 320 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 12mm.
Step 2: prepare low odor polypropylene master batch 3.According to the formula in table 3, all raw materials are mixed rear employing twin screw extruder to melt extrude, through cooling and dicing, obtained low odor polypropylene master batch 3, this master batch length is 12mm.
Step 3: the low odor polypropylene master batch 3 that the high-performance long glass fiber-reinforced polypropylene master batch 2 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, in material after mixing, glass fiber content is 30%, adopt injection moulding machine preparation standard test sample, test result is in table 4.
Embodiment 8:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 3.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 350 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 18mm.
Step 2: prepare low odor polypropylene master batch 4.According to the formula in table 3, all raw materials are mixed rear employing twin screw extruder to melt extrude, through cooling and dicing, obtained low odor polypropylene master batch 4, this master batch length is 18mm.
Step 3: the low odor polypropylene master batch 4 that the high-performance long glass fiber-reinforced polypropylene master batch 3 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, in material after mixing, glass fiber content is 40%, adopt injection moulding machine preparation standard test sample, test result is in table 4.
Embodiment 9:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 3.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 350 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 18mm.
Step 2: prepare low odor polypropylene master batch 5.According to the formula in table 3, all raw materials are mixed rear employing twin screw extruder to melt extrude, through cooling and dicing, obtained low odor polypropylene master batch 5, this master batch length is 18mm.
Step 3: the low odor polypropylene master batch 5 that the high-performance long glass fiber-reinforced polypropylene master batch 3 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, in material after mixing, glass fiber content is 50%, adopt injection moulding machine preparation standard test sample, test result is in table 4.
Comparative example 1:
Take stretching connect crowded pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 270 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 15%, and particle length is 8mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Comparative example 2:
Take stretching connect crowded pickling process preparation, according to the formula in table 1 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 300 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene materials, in this material, glass fiber content is 30%, and particle length is 13mm.Adopt injection moulding machine preparation standard test sample, test result is in table 1.
Comparative example 3:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 2.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 320 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 12mm.
Step 2: prepare polypropylene agglomerate 6.According to the formula in table 3, all raw materials are mixed rear employing twin screw extruder to melt extrude, through cooling and dicing, obtained polypropylene agglomerate 6, this master batch length is 12mm.
Step 3: the polypropylene agglomerate 6 that the long glass fiber-reinforced polypropylene master batch 2 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, and in the material after mixing, glass fiber content is 20%, and adopt injection moulding machine preparation standard test sample, test result is in table 4.
Comparative example 7:
Take batch mixed legal system standby, comprise three steps.
Step 1: prepare long glass fiber-reinforced polypropylene master batch 3.According to the formula in table 2 by after the raw material blending except glass first through forcing machine plastifying fusion, then melt is inputted steeping vat, steeping vat temperature is set to 350 DEG C.Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, and obtained long glass fiber-reinforced polypropylene master batch, this master batch length is 18mm.
Step 2: prepare polypropylene agglomerate 7.According to the formula in table 3, all raw materials are mixed the rear twin screw extruder that first adopts to melt extrude, through cooling and dicing, obtained polypropylene agglomerate 7, this master batch length is 18mm.
Step 3: the polypropylene agglomerate 7 that the long glass fiber-reinforced polypropylene master batch 2 obtained by step 1 and step 2 obtain is according to the formula mixing in table 4, and in the material after mixing, glass fiber content is 45%, and adopt injection moulding machine preparation standard test sample, test result is in table 4.
Table 1: the formula of direct pultrusion pickling process embodiment 1-4, comparative example 1-2 and the performance test results
Table 2: the long glass fiber-reinforced polypropylene master batch preparation of batch mixed method
Table 3: the low odor polypropylene master batch preparation of batch mixed method
Table 4: the formula of crowd mixed method embodiment 5-9, comparative example 3-4 and the performance test results
The performance test results as can be seen from embodiment 1-4 and comparative example 1-2: adopt in the low smell of the present invention, high-performance long glass fiber-reinforced polypropylene materials and add after chemical deodovization agent, material there is lower smell, lower condensed components.The performance test results as can be seen from embodiment 5-9 and comparative example 3-4: same use criticizes mixed method, and after with the addition of chemical deodovization agent, material has lower smell, lower condensed components.
Can see from above embodiment test result, the low smell obtained by the present invention, high-performance long glass fiber-reinforced polypropylene materials not only have very low smell, also have excellent mechanical property, thermotolerance.This low smell, high-performance long glass fiber-reinforced polypropylene materials are especially suitable for manufacturing and all require higher auto parts to odor properties, mechanical property, as instrument board framework, air channel, multiple bay, door-plate etc.

Claims (9)

1. low smell, a high-performance Long Glass Fiber Reinforced PP Composite, is characterized in that: be made up of the raw material of following mass percent:
Polypropylene: 24.5 ~ 91.9%;
Long glass fibres: 5 ~ 50%;
Chemistry deodovization agent: 0.5 ~ 4%;
Polypropylene compatilizer: 2 ~ 15%;
Oxidation inhibitor: 0.5 ~ 3.5%;
Processing aid: 0.1 ~ 3%;
Described chemical deodovization agent is the composition of one or more chemical deodovization agents, and described chemical deodovization agent is sequestrant; Described sequestrant is hyperbranched polyether modification sequestrant, is selected from hyperbranched glycidyl ether modified diethyl pentetic acid, hyperbranched glycidyl ether modified dodecane tetraacethyl and hyperbranched glycidyl ether modified ethylenediamine tetraacetic acid (EDTA).
2. the low smell of one according to claim 1, high-performance Long Glass Fiber Reinforced PP Composite, is characterized in that: described polyacrylic melt flow rate (MFR) is 40 ~ 250g/10min.
3. the low smell of one according to claim 1, high-performance Long Glass Fiber Reinforced PP Composite, is characterized in that: described long glass fibres is continuous alkali-free glass fiber, and glass diameter is 10 ~ 25 μm.
4. the low smell of one according to claim 1, high-performance Long Glass Fiber Reinforced PP Composite, it is characterized in that: described compatilizer is toxilic acid and derivative, vinylformic acid, glycidyl acrylate and polypropylene grafted graft polypropylene, and percentage of grafting is 0.5 ~ 2.2%.
5. the low smell of one according to claim 1, high-performance Long Glass Fiber Reinforced PP Composite, is characterized in that described oxidation inhibitor is antioxidant 1010, irgasfos 168, oxidation inhibitor DSTP, antioxidant 3114, oxidation inhibitor 619F, the mixture of one or more in oxidation inhibitor 627.
6. the low smell of one according to claim 1, high-performance Long Glass Fiber Reinforced PP Composite, is characterized in that: described processing aid comprises the mixture of one or more in stearic acid, stearate, polyolefin-wax and polysiloxane.
7. prepare a method for low smell described in claim 1, high-performance Long Glass Fiber Reinforced PP Composite, it is characterized in that: the steps include:
1) first through forcing machine plastifying fusion after polypropylene, chemical deodovization agent, compatilizer, oxidation inhibitor, processing aid being mixed according to formula, then melt is inputted steeping vat, steeping vat temperature is set to 250 ~ 350 DEG C;
2) continuous long glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, obtained low smell, high-performance long glass fiber-reinforced polypropylene materials.
8. prepare a method for low smell described in claim 1, high-performance Long Glass Fiber Reinforced PP Composite, it is characterized in that: the steps include:
1) long glass fiber-reinforced polypropylene master batch preparation: first through forcing machine plastifying fusion after polypropylene, compatilizer, processing aid being mixed according to formula, then melt is inputted steeping vat, steeping vat temperature is set to 250 ~ 350 DEG C; Continuous roving glass fiber enters steeping vat, dispersion by melt thorough impregnation, gained material pulls out steeping vat and cooling and dicing under transmission mechanism effect, obtained long glass fiber-reinforced polypropylene master batch, and its particle length is 8-18mm;
2) low odor polypropylene master batch preparation: join in twin screw extruder by polypropylene, chemical deodovization agent, oxidation inhibitor, melt blending is extruded, then obtain low odor polypropylene master batch through cooling and pelletizing, its particle length is 8-18mm.
3) by step 1) obtained long glass fiber-reinforced polypropylene master batch and step 2) obtained low odor polypropylene master batch mixes and namely obtains low smell, high-performance Long Glass Fiber Reinforced PP Composite.
9. a kind of method preparing low smell described in claim 1, high-performance Long Glass Fiber Reinforced PP Composite according to claim 8, is characterized in that: described long glass fiber-reinforced polypropylene master batch is identical with the particle length of low odor polypropylene master batch.
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CN103342859B (en) * 2013-07-22 2016-02-10 南京立汉化学有限公司 A kind of low smell, low VOC glass fiber reinforced polypropylene composite material and preparation method thereof
CN103739944B (en) * 2013-12-09 2016-03-09 天津金发新材料有限公司 A kind of low smell glass fiber reinforced polypropylene composite material and preparation method thereof
CN106995550A (en) * 2016-01-26 2017-08-01 合肥杰事杰新材料股份有限公司 A kind of ultrabranching polyamide modified polypropylene composite material and preparation method thereof
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