CN110423464A - A kind of fascia PA6 composite material and preparation method - Google Patents
A kind of fascia PA6 composite material and preparation method Download PDFInfo
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- CN110423464A CN110423464A CN201910737532.6A CN201910737532A CN110423464A CN 110423464 A CN110423464 A CN 110423464A CN 201910737532 A CN201910737532 A CN 201910737532A CN 110423464 A CN110423464 A CN 110423464A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- 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
- C08K2201/016—Additives defined by their aspect ratio
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- 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
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The present invention provides a kind of dedicated PA6 composite materials of fascia, including 40-55 parts by weight nylon 6, 0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight antioxidant, 0-2 parts by weight black agglomerate, 0-15 parts by weight toughener and the chopped flat glass fiber of 0-55 parts by weight, composite material provided by the invention is by selecting suitable material component, and the chopped flat glass fiber section is flat, the width-thickness ratio in its section is (2~10): 1, so that the composite material arrived is relative to existing composite fluidity, mechanical property improves, the shrinking percentage and buckling deformation of product are reduced simultaneously, and then the instrument board high-dimensional stability that can satisfy, strong mechanical performance, the demand for development of great surface quality.
Description
Technical field
The present invention relates to field of compound material more particularly to a kind of dedicated PA6 composite material of fascia and its preparations
Method.
Background technique
Fascia mainly plays a supportive role.Fascia largely uses fiber glass reinforced polypropylene compound at present
Material, because 6 composite material of fiberglass reinforced PA has better mechanical property, higher dimensional stability, better resistance to height
Warm nature can be the first choice of high-end vehicle instrument board.
However, with the development of the automobile industry, it is also higher and higher to the precision size degree requirement of fascia, especially
Requirement of the high-end vehicle to instrument board not only needs it with good mechanical property and high and low temperature resistance, it is also necessary to which it has
Good surface quality；But although the instrument disk material mechanical property and dimensional stability that provide at present are preferable, due to
The presence of high microsteping content in composite material, so that obtained composite fluidity is poor, and then the article surface quality prepared
Difference, and it is easy buckling deformation.
Summary of the invention
In view of this, compound technical problem to be solved by the present invention lies in a kind of dedicated PA6 of fascia is provided
Material and preparation method thereof, not only mechanical property is good for composite material provided by the invention, but also good fluidity, product are not easy warpage
Deformation, good stability of the dimension.
The present invention provides a kind of dedicated PA6 composite materials of fascia, based on parts by weight, comprising:
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
Preferably, the composite material, based on parts by weight, comprising:
Preferably, the relative viscosity of the nylon 6 is 2.0~2.8.
Preferably, the length of the chopped flat glass fiber is 3-6mm.
Preferably, the lubricant is one or more of ethylene-acrylic acid copolymer, montanin wax and amide waxe.
Preferably, the antioxidant is one or more of Hinered phenols antioxidant and phosphite ester antioxidant.
Preferably, the black agglomerate is that 6 carrier carbon black masterbatch of nylon, PP carrier carbon black masterbatch and 6 aniline of nylon are black
One or both of Masterbatch.
Preferably, the toughener is glycidyl methacrylate graft polyolefin or maleic anhydride grafted polyolefin
Hydrocarbon.
Preferably, the comprehensively modifying agent is dissaving polymer.
The present invention also provides a kind of preparation methods of the dedicated PA6 composite material of fascia, comprising:
1) by 40-55 parts by weight nylon 6,0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight are anti-
Oxygen agent 0-2 parts by weight black agglomerate, 0-15 parts by weight toughener mixing, obtains mixed material；
2) mixed material and the chopped flat glass fiber mixing granulation of 40-55 parts by weight will be obtained, fascia is obtained
Dedicated PA6 composite material；
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
Compared with prior art, the present invention provides a kind of dedicated PA6 composite materials of fascia, including 40-55 weight
Measure part nylon 6,0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight antioxidant 0-2 parts by weight black masterbatch
The chopped flat glass fiber of grain, 0-15 parts by weight toughener and 0-55 parts by weight, composite material provided by the invention pass through choosing
Suitable material component is selected, and keeps the chopped flat glass fiber section flat, and the width-thickness ratio in section is (2~10)
: 1, so that being improved to obtained composite material relative to existing composite fluidity, mechanical property, reduce simultaneously
The shrinking percentage of product reduces buckling deformation, so can satisfy instrument board high-dimensional stability, strong mechanical performance,
The demand for development of great surface quality.
Specific embodiment
The present invention provides a kind of dedicated PA6 composite materials of fascia, based on parts by weight, comprising:
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
According to the present invention, the relative viscosity of the nylon 6 (PA6) is preferably 2.0~2.8, and more preferably 2.3~2.6；Institute
It states in composite material, the parts by weight of the nylon 6 are preferably 44~52 parts, and more preferably 45~50 parts.
According to the present invention, the width-thickness ratio in the chopped flat glass fiber section is (2~10): 1, preferably (4~8):
1, more preferably (5~6): 1；The length of the chopped flat glass fiber is preferably 3~6mm, more preferably 4~5mm；It is described
In composite material, the parts by weight for the flat glass fiber that is chopped are preferably 44~52 parts, and more preferably 45~50 parts.
According to the present invention, the lubricant be preferably one of ethylene-acrylic acid copolymer, montanin wax and amide waxe or
It is several, more preferably ethylene-acrylic acid copolymer, montanin wax or amide waxe；In the composite material, the parts by weight of lubricant
Preferably 0.2~0.8 part, more preferably 0.4~0.6 part.
According to the present invention, the antioxidant be preferably one of Hinered phenols antioxidant and phosphite ester antioxidant or
Two kinds；In the composite material, the parts by weight of antioxidant are preferably 0.2~0.8 part, and more preferably 0.4~0.6 part.
According to the present invention, the black agglomerate is preferably 6 carrier carbon black masterbatch of nylon, PP carrier carbon black masterbatch and nylon 6
One or more of nigrosine black agglomerate, more preferably 6 carrier carbon black masterbatch of nylon, PP carrier carbon black masterbatch or nylon 6
Nigrosine black agglomerate；In the composite material, the parts by weight of black agglomerate are preferably 0.2~0.8 part, more preferably 0.4
~0.6 part.
According to the present invention, the toughener is that glycidyl methacrylate graft polyolefin or maleic anhydride are grafted
Polyolefin；In the composite material, the parts by weight of toughener are preferably 1~12 part, more preferably 3~10 parts, most preferably 5
~8 parts.
According to the present invention, the comprehensively modifying agent is dissaving polymer, and preferably model CYD- contains special function
The dendritic structure additive of group；In the composite material, the parts by weight of comprehensively modifying agent are preferably 0.2~0.8 part, more excellent
It is selected as 0.4~0.6 part.
The present invention also provides a kind of preparation methods of the dedicated PA6 composite material of fascia, comprising:
1) by 40-55 parts by weight nylon 6,0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight are anti-
Oxygen agent 0-2 parts by weight black agglomerate, 0-15 parts by weight toughener mixing, obtains mixed material；
2) mixed material and the chopped flat glass fiber mixing granulation of 40-55 parts by weight will be obtained, fascia is obtained
Dedicated PA6 composite material；
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
According to the present invention, the present invention is by 40-55 parts by weight nylon 6,0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying
Agent, 0-2 parts by weight antioxidant 0-2 parts by weight black agglomerate, the mixing of 0-15 parts by weight toughener obtain mixed material；Wherein, originally
Invention does not have particular/special requirement, hybrid mode well known in the art to mixed method.
According to the present invention, the present invention will also obtain mixed material and the chopped flat glass fiber mixing of 40-55 parts by weight is made
Grain, obtains the dedicated PA6 composite material of fascia；Wherein, the present invention does not have particular/special requirement, ability to the method for mixing granulation
Mixing granulation method well known to domain, such as draw ratio can be added from side spout in chopped flat glass fiber is (30-
60): being squeezed out in 1 double screw extruder with mixed material mixed melting, is cooling, molding, obtaining composite material after pelletizing.
The dedicated PA6 composite material of a kind of fascia provided by the invention, including 40-55 parts by weight nylon 6,0-1 weight
Measure part lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight antioxidant 0-2 parts by weight black agglomerate, the increasing of 0-15 parts by weight
Tough dose and the chopped flat glass fiber of 0-55 parts by weight, wherein the present invention is by selecting specific various materials and making institute
State chopped flat glass fiber section be it is flat, the width-thickness ratio in section is (2~10): 1 so as to obtained composite wood
Material is improved relative to existing composite fluidity, mechanical property, while reducing the shrinking percentage of product, and then can expire
The demand for development of the instrument board high-dimensional stability, strong mechanical performance, great surface quality that obtain enough.
It is clearly and completely described below in conjunction with the technical solution of the embodiment of the present invention, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
Embodiment 1
Step 1: by 44 kilograms of PA6-MF500,4.8 kilograms of toughener POE-g-MAH, 0.2 kilogram of phenolic antioxidant
1010,0.2 kilograms of Irganox, 168,0.4 kilogram of phosphite ester antioxidant Irganox black agglomerate CABOT-UN2014,
0.2 kilogram of ethylene-acrylic acid copolymer lubricant, (CYD-701, Weihai Chen Yuan molecule are new for 0.2 kilogram of hyperbranched comprehensively modifying agent
Material) it is sufficiently mixed uniformly in high-speed mixer.
Step 2: the first step, which is obtained mixture, is transported to double spiral shells that width-thickness ratio is 40: 1 with 40 kgs/hour of rate
Melt dispersion in bar extruder, at the same by 50 kilograms of chopped flat glass fiber ECS301HP-3-M4 (cross section width-thickness ratio is 4:
1, cross section width-thickness ratio is the long axis of ellipse and the ratio of short axle), claimed from side spout by weightlessness with 40 kgs/hour
Rate is added, and melting extrusion is granulated, and extruder temperature of each section is 250-270 DEG C, obtains a kind of high flowing of 50% glass fiber content
The high performance PA6 composite material of property.
The performance of obtained material is tested, the results are shown in Table 1,
Table 1
Embodiment 2
Step 1: by 44 kilograms of PA6-MF500,4.8 kilograms of glycidyl methacrylate graft polyolefin (POE-g-
GMA), 0.2 kilogram of 1010,0.2 kilograms of phenolic antioxidant Irganox, 168,0.4 kilogram of phosphite ester antioxidant Irganox
Black agglomerate CABOT-XP6465A, 0.2 kilogram of lubricant ethylene-acrylic acid copolymer, 0.2 kilogram of (CYD-701, Weihai Chen Yuan
Molecule new material) it is sufficiently mixed uniformly in high-speed mixer.
Step 2: the first step, which is obtained mixture, is transported to double spiral shells that draw ratio is 40: 1 with 40 kgs/hour of rate
Dispersion is melted in bar extruder, while (cross section width-thickness ratio is 4: 1, horizontal by 50 kilograms of chopped flat glass fiber ECS307AT
Section width-thickness ratio is the long axis of ellipse and the ratio of short axle), claimed from side spout by weightlessness with 40 kgs/hour of rate
It is added, melting extrusion is granulated, and extruder temperature of each section is 250-270 DEG C, and the high fluidity for obtaining a kind of 50% glass fiber content is high
The PA6 composite material of performance.
The performance of obtained composite material is tested, the results are shown in Table 2.
Table 2
Comparative example 1
According to the formula and preparation process of embodiment 2, only 50 kilograms of chopped flat glass fibers are changed into 50 kilograms of circles
Glass is prepared PA6 composite material, the results are shown in Table 3；
Table 3
It summarizes: from 1~table of table 3 as can be seen that the material that the present invention improves has high fluidity, high rigidity, high tenacity, height
Dimensional stability；Meet the demand for development of fascia PP Pipe Compound.Melt index >=5.5 (g/10min) is detected, is stretched strong
Degree >=210MPa, bending strength >=310MPa, unnotched impact strength >=115KJ/m2, shrinking percentage≤0.2%.
Using conventional circular glass, compared with flat glass, the processing fluidity of material is substantially reduced, and mechanical property reduces
Low, presentation quality is bad, and dimensional stability is bad, is easy buckling deformation.
As it can be seen that the present invention greatly improves the processing fluidity of material using specific material combination.It not only increases
Toughness of material, and with hyperbranched comprehensively modifying agent, improve products surface quality and Shooting Technique.Overcome adding for traditional material
Work technique is bad, and mechanical property is lower, and presentation quality is bad, the bad problem of dimensional stability.
The above description of the embodiment is only used to help understand the method for the present invention and its core ideas.It should be pointed out that pair
For those skilled in the art, without departing from the principle of the present invention, the present invention can also be carried out
Some improvements and modifications, these improvements and modifications also fall within the scope of protection of the claims of the present invention.
Claims (10)
1. a kind of dedicated PA6 composite material of fascia, based on parts by weight, comprising:
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
2. composite material according to claim 1, which is characterized in that the composite material, based on parts by weight, comprising:
3. composite material according to claim 1, which is characterized in that the relative viscosity of the nylon 6 is 2.0~2.8.
4. composite material according to claim 1, which is characterized in that the length of the chopped flat glass fiber is 3-
6mm。
5. composite material according to claim 1, which is characterized in that the lubricant is ethylene-acrylic acid copolymer, covers
One or more of denier wax and amide waxe.
6. composite material according to claim 1, which is characterized in that the antioxidant is Hinered phenols antioxidant and phosphorous
One or more of acid esters kind antioxidant.
7. composite material according to claim 1, which is characterized in that the black agglomerate be 6 carrier carbon black masterbatch of nylon,
One or both of 6 nigrosine black agglomerate of PP carrier carbon black masterbatch and nylon.
8. composite material according to claim 1, which is characterized in that the toughener is glycidyl methacrylate
Graft polyolefin or maleic anhydride stem grafting polyolefin.
9. composite material according to claim 1, which is characterized in that the comprehensively modifying agent is dissaving polymer.
10. a kind of preparation method of the dedicated PA6 composite material of fascia, comprising:
1) by 40-55 parts by weight nylon 6,0-1 parts by weight lubricant, 0-1 parts by weight comprehensively modifying agent, 0-2 parts by weight antioxidant
0-2 parts by weight black agglomerate, 0-15 parts by weight toughener mixing, obtains mixed material；
2) mixed material and the chopped flat glass fiber mixing granulation of 40-55 parts by weight will be obtained, it is dedicated to obtain fascia
PA6 composite material；
Wherein, the chopped flat glass fiber section is flat, and the width-thickness ratio in section is (2~10): 1.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117238A (en) * | 2020-01-15 | 2020-05-08 | 重庆国际复合材料股份有限公司 | PA66 composite material, preparation method thereof and automobile regulator connecting piece |
| CN112322032A (en) * | 2020-11-13 | 2021-02-05 | 江阴市一诺工程塑料有限公司 | High-strength high-toughness PA6 composite material for automobile chassis and preparation method thereof |
| CN113563715A (en) * | 2021-07-20 | 2021-10-29 | 南京聚隆科技股份有限公司 | High-glass-fiber weather-resistant black nylon material |
| CN114685974A (en) * | 2020-12-30 | 2022-07-01 | 广东美的白色家电技术创新中心有限公司 | Nylon composite material, preparation method thereof, injection molded part and household appliance |
| CN115141431A (en) * | 2022-06-27 | 2022-10-04 | 重庆长安汽车股份有限公司 | Thin-wall anti-warping composite material for LFT-D and preparation method and application thereof |
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| CN112322032A (en) * | 2020-11-13 | 2021-02-05 | 江阴市一诺工程塑料有限公司 | High-strength high-toughness PA6 composite material for automobile chassis and preparation method thereof |
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| CN115141431A (en) * | 2022-06-27 | 2022-10-04 | 重庆长安汽车股份有限公司 | Thin-wall anti-warping composite material for LFT-D and preparation method and application thereof |
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Application publication date: 20191108 |