CN105017638A - High-creep-resistant polypropylene glass fiber reinforced material and product thereof - Google Patents
High-creep-resistant polypropylene glass fiber reinforced material and product thereof Download PDFInfo
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- CN105017638A CN105017638A CN201410158263.5A CN201410158263A CN105017638A CN 105017638 A CN105017638 A CN 105017638A CN 201410158263 A CN201410158263 A CN 201410158263A CN 105017638 A CN105017638 A CN 105017638A
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Abstract
The invention discloses a high-creep-resistant polypropylene glass fiber reinforced material and a product thereof. The high-creep-resistant polypropylene glass fiber reinforced material comprises the following components in parts by weight: thermoplastic resin, reinforcing filler and 0.1-20 parts of a toughening agent, wherein the thermoplastic resin contains 0.1-55 parts of homo-polypropylene and 0.1-35 parts of block co-polypropylene; and the reinforcing fiber contains 5-45 parts of first fibrous filler and 0.1-35 parts of second fibrous filler. The product is generated after the high-creep-resistant polypropylene glass fiber reinforced material is molded. Compared with the prior art, the high-creep-resistant polypropylene glass fiber reinforced material and the product thereof have the advantages that modified polypropylene which has high performance and meets the requirements of car manufacturers is obtained through modifying and developing a polypropylene composite according to the requirement of a skylight framework of a car, selecting and using a polypropylene raw material, adding different reinforcing materials and modifying and developing the filler. Meanwhile, long fibers can be processed to be used for common extruders, so that the material modification difficulty is greatly lowered.
Description
[technical field]
The invention belongs to field of material technology, be specifically related to a kind of high creep resistance polypropylene glass steel and products thereof.
[background technology]
Glass reinforced plastic is also known as glass filament reinforced plastics.Current automobile is the when concentrated reflection of factors perfect adaptation such as intelligence of technology, material, performance, price, and glass fiber reinforced plastics composite material is the first-selection of automotive material.From domestic and international automotive material behaviour in service, automobile uses glass fiber reinforced plastics composite material to be inexorable trend.It is light, higher and be easy to processing and remodeling, the advantage such as corrosion-resistant than strong that glass fiber reinforced plastics composite material has quality.But under using macrofiber situation, need special type extruder to make, more difficult on material modification.
The development trend of automotive industry now: 1, lightweight, low oil consumption: plastic density little (proportion is low); 2, reduce production cost: material workability (extrude, injection moulding, blowing, calendering, mold pressing, gas-assisted molding); 3, plastics are used in a large number: the advantages such as specific tenacity is high, wear-resisting, erosion resistance is good, good insulating, energy consumption are low, noise is little, predominant plastics: PP, PA, PU, PVC, PE etc.; 4, automotive plastic amount: account for plastics total flow 8%, accounts for automobile gross weight 10%.
Based on above-mentioned some, automotive material part parts convert plastics to gradually by metal, just more than 5KG is reached only according to skylight frame plastic moiety by weight, according to statistics, within 2010, gross vehicle sales volume has reached 1,800 ten thousand, be equal to plastic material and just reach more than 9000 tons in car material dashboard usage quantity, its developing market is very huge as seen.
Automobile main frame maker, to skylight skeleton goods requirement, must meet related specifications, the physical property of some manufacturer's specifications, in the polypropylene that polymerization plant peddles, almost do not reach requirement, and general depot is through mixing factory and buys modified polypropylene and carry out car type exploitation.
In view of this, be necessary to develop a kind of high creep resistance polypropylene glass steel and products thereof, to meet the physical property requirement of automobile vendor to material in fact.
[summary of the invention]
Therefore, the object of this invention is to provide a kind of high creep resistance polypropylene glass steel and products thereof, to meet the physical property requirement of automobile vendor to material.
In order to achieve the above object, high creep resistance polypropylene glass steel of the present invention, it represents by weight and comprises:
Thermoplastic resin, it comprises homo-polypropylene 0.1 ~ 55 part and block copolymerization polypropylene 0.1 ~ 35 part;
Strengthen packing material, it comprises the first fibrous filler material 5 ~ 45 parts, the second fibrous filler material 0.1 ~ 35 part;
Toughner 0.1 ~ 20 part.
Alternatively, described block copolymerization polypropylene is by the ethene of polypropylene collocation 2 ~ 5%.
Alternatively, described block copolymerization polypropylene adds ethylene-propylene copolymer and carries out block modified.
Alternatively, described first fibrous filler material surface is coated with metal oxide, described metal oxide comprise titanium oxide, zinc oxide, cerium oxide and silicon oxide at least one of them.
Alternatively, described first fibrous filler material is fiber system packing material, comprise carbon fiber, glass fibre, washing carbon fiber, carbon black at least one of them.
Alternatively, described first fibrous filler material fiber length is 0.25 ~ 25mm.
Optionally, described second fibrous filler material is hydrous magnesium silicate fibrous filler material, and main body is sheet structure, relative density 2.7 ~ 2.8.
Alternatively, described second fibrous filler material is wollastonite, the fiber system packing material except described first fibrous filler material composition.
Alternatively, described toughner is polyolefin elastomer, and described polyolefin elastomer is ethylene butylene rubber or Ethylene-octene rubber, toughner density 0.865 ~ 0.915g/cm3, viscosity scope 5 ~ 35.
Alternatively, described high creep resistance polypropylene glass steel also comprises Nucleating Agent, described Nucleating Agent comprise phenylformic acid, cinnamic acid, Sorbitol dibenzal, how rice silicon-base oxide at least one of them.
Alternatively, described high creep resistance polypropylene glass steel also comprises at least one in stablizer, releasing agent, antiseptic-germicide, look material, fire retardant, flow ability modifying agent, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent, expanding material.
Alternatively, described high creep resistance polypropylene glass steel also comprises at least one in thermoplastic resin beyond described homo-polypropylene and block copolymerization polypropylene, rubber polymer.
Alternatively, described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer.
Alternatively, described releasing agent is at least one in acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax.
In addition, the present invention also provides a kind of product, and described product is the product produced after described high creep resistance polypropylene glass fiber reinforced plastics forming materials.
Alternatively, described product is vehicle dormer window skeleton.
Compared to prior art, high creep resistance polypropylene glass steel of the present invention and products thereof, the modification exploitation carrying out polypropylene composite material is required to automobile skylight skeleton, by the choice for use of pp material, add various different supporting material, weighting material carries out modification and exploitation, obtain high-performance and meet the modified polypropene that automobile vendor requires.Macrofiber can be machined in general extruder to use simultaneously, greatly reduce the difficulty on material modification.
[embodiment]
High creep resistance polypropylene glass steel of the present invention, it represents by weight and comprises:
Thermoplastic resin, it comprises homo-polypropylene (IPP) 0.1 ~ 55 part and block copolymerization polypropylene (B-PP) 0.1 ~ 35 part; The crystallization degree of homo-polypropylene own is high, rigidity and tough sexual balance good, but obviously not enough in low-temperature flexibility, other thermoplasticss (as block copolymerization polypropylene) modification of arranging in pairs or groups, degree of crystallinity about 50 ~ 60%; Described block copolymerization polypropylene is by the ethene of polypropylene collocation 2 ~ 5%, described block copolymerization polypropylene can also add ethylene-propylene copolymer (EPR) and carry out block modified, because of ethene and EPR be in grafting mode on polypropylene, not only low on polyacrylic degree of crystallinity impact, low temperature can keep suitable toughness.
Strengthen packing material, it comprises the first fibrous filler material 5 ~ 45 parts, the second fibrous filler material 0.1 ~ 35 part; Described first fibrous filler material surface can metal oxide, described metal oxide comprise titanium oxide, zinc oxide, cerium oxide and silicon oxide at least one of them, described first fibrous filler material can be fiber system packing material, comprise carbon fiber, glass fibre, washing carbon fiber, carbon black at least one of them, described first fibrous filler material fiber length is 0.25 ~ 25mm, and intensity is in the middle of staple fiber material and long fiber material; Described second fibrous filler material can be hydrous magnesium silicate fibrous filler material, main body is sheet structure (effectively can reduce linear expansivity), relative density 2.7 ~ 2.8, hydrous magnesium silicate has the effect of heterogeneous nucleation to polypropylene, can accelerate polyacrylic crystallization; Described second fibrous filler material can for wollastonite, the fiber system packing material except described first fibrous filler material composition.
Toughner 0.1 ~ 20 part, described toughner can be polyolefin elastomer, described polyolefin elastomer is ethylene butylene rubber or Ethylene-octene rubber, toughner density 0.865 ~ 0.915g/cm3, viscosity scope 5 ~ 35, due to many on the body construction ring structures, make it under low-temperature condition, still a large amount of impact energy of Absorbable rod and do not make material produce fracture.
Nucleating Agent 0.1 ~ 0.5 part, described Nucleating Agent comprise phenylformic acid, cinnamic acid, Sorbitol dibenzal, how rice silicon-base oxide at least one of them; Can, in the process of mixing, be dispersed in rapidly in resin body, first crystallization in resin melt process of cooling.Not only improve degree of crystallinity, even the grain-size after crystallization reduced, reach the reinforcement of rigidity with toughness further, because brilliant speed speeds, dimensional contraction rate comparatively can not produce considerable change because of the time, can reach the requirement of skylight skeleton low linear expansion coefficient.
Other auxiliary agent, can for making forming process time the stablizer that molecular weight reduces, low key tone is stable, releasing agent, antiseptic-germicide, look material, fire retardant, flow ability modifying agent, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent, at least one in expanding material; It can be at least one in the thermoplastic resin beyond described homo-polypropylene and block copolymerization polypropylene, rubber polymer; Described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer; Described releasing agent is at least one in acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax; Releasing agent, owing to having good mobility, therefore obtains pressure propagation good, is out of shape uniform products formed, and due to its molding shrinkage low, therefore demoulding opposing easily becomes large, the distortion of products formed when its result easily causes the demoulding.Above-mentioned special component be engaged in the characteristic not damaging matrix material inorganic fill toughening compositions when solve this problem; Expanding material improves the interface binding power between glass and plastics, and physical property can be made to promote further, and surface appearance is better.
For having further understanding to object of the present invention, technique means and functional effect, existing combination specifically implements to make the following instructions the present invention.
Embodiment 1:
Homo-polypropylene and block copolymerization polypropylene is dry in dehumidifying heat pump baking oven respectively; Take dried poly-polypropylene and block copolymerization polypropylene and mix; Take polyolefin elastomer, phenylformic acid and other auxiliary agents, then join high-speed mixer high speed premix; Mixture in above-mentioned steps and the glass fibre taken, hydrous magnesium silicate are joined respectively on twin screw extruder and melt extrude granulation.
Embodiment 2:
Homo-polypropylene and block copolymerization polypropylene is dry in dehumidifying heat pump baking oven respectively; Take dried poly-polypropylene and block copolymerization polypropylene and mix; Take polyolefin elastomer, phenylformic acid and other auxiliary agents, then join high-speed mixer high speed premix; Mixture in above-mentioned steps and the glass fibre taken, hydrous magnesium silicate are joined respectively on twin screw extruder and melt extrude granulation.
Embodiment 3:
Homo-polypropylene and block copolymerization polypropylene is dry in dehumidifying heat pump baking oven respectively; Take dried poly-polypropylene and block copolymerization polypropylene and mix; Take polyolefin elastomer, phenylformic acid and other auxiliary agents, then join high-speed mixer high speed premix; Mixture in above-mentioned steps and the glass fibre taken, hydrous magnesium silicate are joined respectively on twin screw extruder and melt extrude granulation.
After each embodiment melt extrudes granulation above, then injection moulding ASTM standard testing batten on injection moulding machine, by the mechanical property of ASTM standard testing resulting materials, wherein test shock strength according to ASTM D256, according to ASTM D638 test tensile strength, test flexural strength and modulus in flexure according to ASTM D790, test mobility MI value according to ASTM D1238, according to UL-94 standard testing flame retardant resistance, test result (and making comparisons with P7-45FG-0790) as shown in table 1:
Table 1: embodiment and comparative example test result
| Test event | P7-45FG-0790 | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Proportion | 1.29 | 1.27 | 1.28 | 1.26 |
| Flow index (190 ° DEG C, 2.16Kg, g/10min) | 2 | 45 | 4 | 6 |
| Modulus in flexure (Mpa) | 10500 | 11000 | 10300 | 11030 |
| Shock strength (CEAST, KJ/m 2） | 11 | 10 | 10.5 | 7 |
| Shock strength (charRY, KJ/m 2） | 10 | 10 | 10.5 | 10 |
| Tensile strength (Mpa) | 110 | 103 | 90 | 88 |
| Heat-drawn wire (1.8Mpa, DEG C) | 148 | 153 | 150 | 150 |
Can be drawn by table 1, the high creep resistance polypropylene glass steel of gained of the present invention, by the choice for use of pp material, add various different supporting material, weighting material carries out modification and exploitation, obtain high-performance and meet the modified polypropene that automobile vendor requires.
In addition, the present invention also provides a kind of product, and described product is the product produced after described high creep resistance polypropylene glass fiber reinforced plastics forming materials, and described product is vehicle dormer window skeleton.
In sum, compared to prior art, high creep resistance polypropylene glass steel of the present invention and products thereof, the modification exploitation carrying out polypropylene composite material is required to automobile skylight skeleton, by the choice for use of pp material, add various different supporting material, weighting material carries out modification and exploitation, obtain high-performance and meet the modified polypropene that automobile vendor requires.Macrofiber can be machined in general extruder to use simultaneously, greatly reduce the difficulty on material modification.
Claims (16)
1. a high creep resistance polypropylene glass steel, is characterized in that, it represents by weight and comprises:
Thermoplastic resin, it comprises homo-polypropylene 0.1 ~ 55 part and block copolymerization polypropylene 0.1 ~ 35 part;
Strengthen packing material, it comprises the first fibrous filler material 5 ~ 45 parts, the second fibrous filler material 0.1 ~ 35 part;
Toughner 0.1 ~ 20 part.
2. high creep resistance polypropylene glass steel as claimed in claim 1, is characterized in that, described block copolymerization polypropylene is by the ethene of polypropylene collocation 2 ~ 5%.
3. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described block copolymerization polypropylene adds ethylene-propylene copolymer and carries out block modified.
4. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described first fibrous filler material surface is coated with metal oxide, described metal oxide comprise titanium oxide, zinc oxide, cerium oxide and silicon oxide at least one of them.
5. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described first fibrous filler material is fiber system packing material, comprise carbon fiber, washing carbon fiber, carbon black at least one of them.
6. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described first fibrous filler material fiber length is 0.25 ~ 25mm.
7. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described second fibrous filler material is hydrous magnesium silicate fibrous filler material, and main body is sheet structure, relative density 2.7 ~ 2.8.
8. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described second fibrous filler material is wollastonite, fiber system packing material except described first fibrous filler material composition.
9. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described toughner is polyolefin elastomer, and described polyolefin elastomer is ethylene butylene rubber or Ethylene-octene rubber, toughner density 0.865 ~ 0.915g/cm3, viscosity scope 5 ~ 35.
10. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described high creep resistance polypropylene glass steel also comprises Nucleating Agent, described Nucleating Agent comprise phenylformic acid, cinnamic acid, Sorbitol dibenzal, how rice silicon-base oxide at least one of them.
11. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described high creep resistance polypropylene glass steel also comprises at least one in stablizer, releasing agent, antiseptic-germicide, look material, fire retardant, flow ability modifying agent, antiseptic-germicide, dispersion agent, photocatalyst system stain control agent, photochromic agent, expanding material.
12. high creep resistance polypropylene glass steel as claimed in claim 1, it is characterized in that, described high creep resistance polypropylene glass steel also comprises at least one in thermoplastic resin beyond described homo-polypropylene and block copolymerization polypropylene, rubber polymer.
13. high creep resistance polypropylene glass steel as claimed in claim 11, is characterized in that, described stablizer is at least one in phosphorus system stablizer, hindered phenol system oxidation inhibitor, UV light absorber, photostabilizer.
14. high creep resistance polypropylene glass steel as claimed in claim 11, it is characterized in that, described releasing agent is at least one in acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax acid esters, polyolefin wax, silicoorganic compound, fluorine cpd, paraffin, beeswax.
15. 1 kinds of products, the product of described product for producing after the described high creep resistance polypropylene glass fiber reinforced plastics forming materials according to any one of claim 1 to 14.
16. products as claimed in claim 15, it is characterized in that, described product is vehicle dormer window skeleton.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410158263.5A CN105017638A (en) | 2014-04-18 | 2014-04-18 | High-creep-resistant polypropylene glass fiber reinforced material and product thereof |
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| CN201410158263.5A CN105017638A (en) | 2014-04-18 | 2014-04-18 | High-creep-resistant polypropylene glass fiber reinforced material and product thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2749274C2 (en) * | 2016-10-26 | 2021-06-07 | Пирелли Тайр С.П.А. | Elastomeric materials for tire components and tires containing modified silicate fibers |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2749274C2 (en) * | 2016-10-26 | 2021-06-07 | Пирелли Тайр С.П.А. | Elastomeric materials for tire components and tires containing modified silicate fibers |
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Application publication date: 20151104 |