CN105367904A - Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof - Google Patents
Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof Download PDFInfo
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- CN105367904A CN105367904A CN201510940938.6A CN201510940938A CN105367904A CN 105367904 A CN105367904 A CN 105367904A CN 201510940938 A CN201510940938 A CN 201510940938A CN 105367904 A CN105367904 A CN 105367904A
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- polypropylene
- shrinkage
- low
- composite polypropylene
- new automobile
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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
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
Abstract
The invention discloses a novel high-fluidity low-shrinkage composite polypropylene auto-material and a preparation method thereof. The material is prepared from polypropylene, POE, talcum powder, an antioxidant, a light stabilizer and a lubricating agent. The composite polypropylene material is good in fluidity and easy to process, the shrinkage is effectively decreased, and deformation and post shrinkage of the material can not occur even the material is used in the high-temperature and high-humidity environment; meanwhile, other mechanical property indexes of the polypropylene auto-material can be met, and the novel high-fluidity low-shrinkage composite polypropylene auto-material is suitable for making parts such as bumpers, skirt plates and door sheets inside an automobile. According to the novel high-fluidity low-shrinkage composite polypropylene auto-material and the preparation method thereof, the raw materials are easy to obtain, the production process is simple, and the production cost can be greatly reduced.
Description
Technical field
The present invention relates to technical field of polymer materials, particularly relate to a kind of high workability low-shrinkage composite polypropylene new automobile material and preparation method thereof.
Background technology
Along with China suddenly becomes global maximum automobile production and consumption big country, automotive light weight technology, safety, environmental protection and the energy-conservation only way having become its industrial adjustment.Polypropylene and modified product thereof can meet the developing goals such as automotive light weight technology, low cost, environmental protection, and polypropylene is applied to automobile study on the modification aspect and also makes great progress.Plasticization of Automobile trend obviously strengthens, plasticization of Automobile trend and polypropylene, polypropylene material has density low (0.89-0.90g/cm3), mechanical property excellence because of it, has good proof stress be full of cracks, antifatigue surrender and chemical resistance, low price and be easy to the features such as recovery, accounts for 45.6% of overall auto plastics.Domestic polypropylene material market consumption about 900,000 tons in 2011.Along with the development of automotive industry, polypropylene and be material modifiedly no longer only applied to the inside and outside gadget aspect of automobile, a lot of automobile function part also has increasing application, and this must have higher requirement to polypropylene material.
Pp material degree of crystallinity about 70%, molding shrinkage is at 1.8-2.5%, and size is unstable, and toughness particularly low-temperature flexibility is poor, also has the shortcoming that bending elastic modulus is lower, and these shortcomings also limit its application in the car.In order to make polypropylene obtain good application on automobile, modification must be carried out to it.Polyacrylic main method of modifying has: a large amount of filling mineral powder, and this method shortcoming is the impact property affecting material, elongation at break and visual appearance; Add glass fibre, this method shortcoming is the elongation at break and the visual appearance that affect material; Use in CN103059412A polypropylene and PMMA blended, this method shortcoming is that material impact intensity is not high.
At present, China's polypropylene material can not meet the demand of low-shrinkage, mechanical property and processing characteristics simultaneously, not yet obtain substantive breakthroughs, thus be absorbed in the predicament under one's control of long-term dependence on import, seriously hinder the steady and sound fast development of Domestic Automotive Industry.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of high workability low-shrinkage composite polypropylene new automobile material and preparation method thereof is provided.
The technical solution used in the present invention is:
A kind of high workability low-shrinkage composite polypropylene new automobile material, is obtained by the raw material of following parts by weight:
Polypropylene 62.5-68.5 part
POE10-16 part
Talcum powder 18-23 part
Oxidation inhibitor 0.1-0.5 part
Photostabilizer 0.1-0.5 part
Lubricant 0.2-0.6 part.
Preferably, described polypropylene is for containing the polyacrylic polypropylene miser of 20-25 weight part low-shrinkage, and the melt flow rate (MFR) of this polypropylene miser is 10-100g/10min.
Preferably, the polyacrylic shrinking percentage of described low-shrinkage is 0.8-0.9%.
Preferably, the melt flow rate (MFR) of described POE is 5-30g/10min.
Preferably, described talcous order number is 1250-5000 order.
Preferably, described oxidation inhibitor is the compound of four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and three [2.4-di-tert-butyl-phenyl] phosphorous acid ester.
Preferably, described photostabilizer is hindered amine light stabilizer; Described lubricant is ethylene bis stearic acid amide.
The preparation method of above-mentioned a kind of high workability low-shrinkage composite polypropylene new automobile material, comprise the following steps: after polypropylene, POE, oxidation inhibitor, photostabilizer, lubricant, talcum powder are mixed, add in twin screw extruder and melt extrude, obtain a kind of high workability low-shrinkage composite polypropylene new automobile material.
Preferably, melt extruding temperature is 180-230 DEG C.
Preferably, screw speed is 400-550 rev/min.
The invention has the beneficial effects as follows:
Polypropylene composite material good fluidity of the present invention, is easy to processing, and effectively reduces shrinking percentage (lower than 8.5 ‰), also can not deform and post shrinkage even if material uses in hot and humid environment; Other mechanical performance indexs of polypropylene automotive material can be met simultaneously, be applicable to the automotive material making the parts such as safety lever, skirtboard, car internal hilar plate.
Raw material of the present invention is easy to get, and production technique is simple, and production cost thus can be made significantly to reduce.
Embodiment
A kind of high workability low-shrinkage composite polypropylene new automobile material, is obtained by the raw material of following parts by weight:
Polypropylene 62.5-68.5 part
POE10-16 part
Talcum powder 18-23 part
Oxidation inhibitor 0.1-0.5 part
Photostabilizer 0.1-0.5 part
Lubricant 0.2-0.6 part.
Preferably, described polypropylene is for containing the polyacrylic polypropylene miser of 20-25 weight part low-shrinkage, and the melt flow rate (MFR) of this polypropylene miser is 10-100g/10min.
Preferably, the polyacrylic shrinking percentage of described low-shrinkage is 0.8-0.9%.
Preferably, the melt flow rate (MFR) of described POE is 5-30g/10min.
Preferably, described talcous order number is 1250-5000 order.
Preferably, described oxidation inhibitor is the compound of four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and three [2.4-di-tert-butyl-phenyl] phosphorous acid ester.
Preferably, described photostabilizer is hindered amine light stabilizer; Described lubricant is ethylene bis stearic acid amide.
The preparation method of above-mentioned a kind of high workability low-shrinkage composite polypropylene new automobile material, comprise the following steps: after polypropylene, POE, oxidation inhibitor, photostabilizer, lubricant, talcum powder are mixed, add in twin screw extruder and melt extrude, obtain high workability low-shrinkage composite polypropylene new automobile material.
Preferably, melt extruding temperature is 180-230 DEG C.
Preferably, screw speed is 400-550 rev/min.
Content of the present invention is set forth further below in conjunction with specific embodiment.
Embodiment 1
The melt flow rate (MFR) of getting 68.5 weight parts is that the polypropylene of 10g/10min (wherein, is the low-shrinkage polypropylene of 0.8%-0.9% containing 20 weight part shrinking percentages.), the POE being 5g/10min by itself and the melt flow rate (MFR) of 10 weight parts mixes 1 minute by high speed mixer, subsequently with primary antioxidant four (β-(3 of 0.2 weight part, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010), the auxiliary antioxidant three (2 of 0.1 weight part, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), the photostabilizer hindered amines compound (UV3346 and V703) of 0.2 weight part, the ethylene bis stearic acid amide of 0.2 weight part, after 21 weight part 1250 object talcum powder mix 2 minutes by high speed mixer, add twin screw extruder (length-to-diameter ratio is 36: 1) from metering feeding device and melt extrude, melt extrude temperature between 180-230 DEG C, screw speed is 450 revs/min, the material extruded is cooled, air-dry, pelletizing, cross strong magnetic, packaging, obtain finished product.
Embodiment 2
The melt flow rate (MFR) of getting 65.5 weight parts is that the polypropylene of 50g/10min (wherein, is the low-shrinkage polypropylene of 0.8%-0.9% containing 25 weight part shrinking percentages.), the POE being 13g/10min by itself and the melt flow rate (MFR) of 13 weight parts mixes 1 minute by high speed mixer, subsequently with primary antioxidant four (β-(3 of 0.2 weight part, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010), the auxiliary antioxidant three (2 of 0.1 weight part, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), the photostabilizer hindered amines of 0.3 weight part is composite (UV3346 and V703), the ethylene bis stearic acid amide of 0.4 weight part, after 21 weight part 3000 object talcum powder mix 2 minutes by high speed mixer, add twin screw extruder (length-to-diameter ratio is 40: 1) from metering feeding device and melt extrude, melt extrude temperature between 180-230 DEG C, screw speed is 500 revs/min, the material extruded is cooled, air-dry, pelletizing, cross strong magnetic, packaging, obtain finished product.
Embodiment 3
The melt flow rate (MFR) of getting 62.5 weight parts is that the polypropylene of 100g/10min (wherein, is the low-shrinkage polypropylene of 0.8%-0.9% containing 20 weight part shrinking percentages.), the POE being 30g/10min by itself and the melt flow rate (MFR) of 16 weight parts mixes 1 minute by high speed mixer, subsequently with primary antioxidant four (β-(3 of 0.2 weight part, 5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester (1010), the auxiliary antioxidant three (2 of 0.1 weight part, 4-di-tert-butyl-phenyl) phosphorous acid ester (168), the photostabilizer hindered amines of 0.3 weight part is composite (UV3346 and V703), the ethylene bis stearic acid amide of 0.2 weight part, after 21 weight part 5000 object talcum powder mix 2 minutes by high speed mixer, add twin screw extruder (length-to-diameter ratio is 40: 1) from metering feeding device and melt extrude, melt extrude temperature between 180-230 DEG C, screw speed is 550 revs/min, the material extruded is cooled, air-dry, pelletizing, cross strong magnetic, packaging, obtain finished product.
Carry out Performance Detection to the finished product composite polypropylene new automobile material of embodiment 1, embodiment 2 and embodiment 3 gained, result is as shown in the table:
Visible, polypropylene composite material good fluidity of the present invention, is easy to processing, and effectively reduces shrinking percentage (lower than 8.5 ‰), also can not deform and post shrinkage even if material uses in hot and humid environment; Other mechanical performance indexs of polypropylene automotive material can be met simultaneously, be applicable to the automotive material making the parts such as safety lever, skirtboard, car internal hilar plate.
Raw material of the present invention is easy to get, and production technique is simple, and production cost thus can be made significantly to reduce.
Above-described embodiment is preferred embodiment of the present invention, all changes made according to technical solution of the present invention, the function produced fail the scope exceeding technical solution of the present invention time, all belong to protection scope of the present invention.
Claims (10)
1. a high workability low-shrinkage composite polypropylene new automobile material, is obtained by the raw material of following parts by weight:
Polypropylene 62.5-68.5 part
POE10-16 part
Talcum powder 18-23 part
Oxidation inhibitor 0.1-0.5 part
Photostabilizer 0.1-0.5 part
Lubricant 0.2-0.6 part.
2. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 1, it is characterized in that: described polypropylene is for containing the polyacrylic polypropylene miser of 20-25 weight part low-shrinkage, and the melt flow rate (MFR) of this polypropylene miser is 10-100g/10min.
3. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 2, is characterized in that: the polyacrylic shrinking percentage of described low-shrinkage is 0.8-0.9%.
4. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 1, is characterized in that: the melt flow rate (MFR) of described POE is 5-30g/10min.
5. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 1, is characterized in that: described talcous order number is 1250-5000 order.
6. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 1, it is characterized in that: described oxidation inhibitor is the compound of four (β-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid) pentaerythritol ester and three [2.4-di-tert-butyl-phenyl] phosphorous acid ester.
7. a kind of high workability low-shrinkage composite polypropylene new automobile material according to claim 1, is characterized in that: described photostabilizer is hindered amine light stabilizer; Described lubricant is ethylene bis stearic acid amide.
8. the preparation method of a kind of high workability low-shrinkage composite polypropylene new automobile material described in claim 1-7 any one, comprise the following steps: after polypropylene, POE, oxidation inhibitor, photostabilizer, lubricant, talcum powder are mixed, add in twin screw extruder and melt extrude, obtain high workability low-shrinkage composite polypropylene new automobile material.
9. preparation method according to claim 8, is characterized in that: melt extruding temperature is 180-230 DEG C.
10. preparation method according to claim 8 or claim 9, is characterized in that: screw speed is 400-550 rev/min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510940938.6A CN105367904A (en) | 2015-12-16 | 2015-12-16 | Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof |
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| CN201510940938.6A CN105367904A (en) | 2015-12-16 | 2015-12-16 | Novel high-fluidity low-shrinkage composite polypropylene auto-material and preparation method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107353492A (en) * | 2016-05-10 | 2017-11-17 | 合肥杰事杰新材料股份有限公司 | A kind of low-shrinkage polypropylene material and preparation method thereof |
| CN108070158A (en) * | 2016-11-18 | 2018-05-25 | 合肥杰事杰新材料股份有限公司 | A kind of PP composite material of low post-shrinkage ratio and preparation method thereof |
| CN111286122A (en) * | 2019-11-29 | 2020-06-16 | 东风汽车有限公司 | Polypropylene modified material |
| CN111472100A (en) * | 2019-01-23 | 2020-07-31 | 广东维弈科技有限公司 | Polypropylene non-woven fabric material with ultrahigh fluidity and ultralow gel content |
-
2015
- 2015-12-16 CN CN201510940938.6A patent/CN105367904A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107353492A (en) * | 2016-05-10 | 2017-11-17 | 合肥杰事杰新材料股份有限公司 | A kind of low-shrinkage polypropylene material and preparation method thereof |
| CN108070158A (en) * | 2016-11-18 | 2018-05-25 | 合肥杰事杰新材料股份有限公司 | A kind of PP composite material of low post-shrinkage ratio and preparation method thereof |
| CN111472100A (en) * | 2019-01-23 | 2020-07-31 | 广东维弈科技有限公司 | Polypropylene non-woven fabric material with ultrahigh fluidity and ultralow gel content |
| CN111286122A (en) * | 2019-11-29 | 2020-06-16 | 东风汽车有限公司 | Polypropylene modified material |
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Application publication date: 20160302 |