CN109135274A - A kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof - Google Patents
A kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof Download PDFInfo
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/04—Reinforcing macromolecular compounds with loose or coherent fibrous material
- C08J5/0405—Reinforcing macromolecular compounds with loose or coherent fibrous material with inorganic fibres
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- C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
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- C08J2483/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen, or carbon only; Derivatives of such polymers
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Abstract
The invention belongs to automotive material manufacturing technology fields, and in particular to a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof.High temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention is mainly made of PA66 resin, PA6T resin, glass fibre, antioxidant, lubricant, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester.High temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention has the advantages that tensile strength, bending strength, bending modulus and notch impact strength are high, also have that hygroscopicity is low, water resistance is high simultaneously, the high advantage of stability, the product quality of water chamber material can be improved, effectively so as to effectively extend the service life of automobile water chamber.
Description
Technical field
The invention belongs to automotive material manufacturing technology fields, and in particular to a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
And preparation method thereof.
Background technique
Automobile radiators are commonly called as automobile water chamber, are mainly made of three parts such as intake chamber, water-supplying chamber and radiator cores.It is cooling
Liquid flows in radiator core, and air passes through outside radiator core.The coolant liquid of heat cools down due to radiating to air, cold air
Then heat up because absorbing the heat that coolant liquid sheds.With the development of society, high molecular material is largely used as industrial goods, it is more next
More metalworks are replaced by high polymer material member.Since nylon material has nontoxic, light, excellent mechanical strength, wear-resisting
Property and preferable corrosion resistance, and some performances are more due to metalwork, in the industry with most extensively.
Currently, the plastic part of the water chamber upper and lower covers of most of cars is made of to use 30% glass fiber reinforced nylon material, by
In automobile water chamber environment be high/low temperature coolant liquid environment, therefore it is required that material allows for ethylene glycol resistant and other chemicals
Erosion, while requiring product that cannot crack in assembling process, the mechanical property and dimensional stability to material have compared with
High requirement.
In recent years, a large amount of study on the modification has been carried out to PA66 material both at home and abroad, develop many comprehensive performances it is superior, can
Meet the modified material of particular/special requirement.Patent document CN103289391A discloses a kind of hydrolysis PA66 composition, described resistance to
It hydrolyzes PA66 composition and second is grafted by PA6660, compound hydrolysis agent, alkali-free glass fibre, silicon powder, antioxidant, maleic anhydride
Alkene octene copolymer, coupling agent composition, the compound hydrolysis agent are the mixture of polycarbodiimide and copper chloride, described anti-
Oxygen agent is the one or two of antioxidant 1010 or irgasfos 168, and the coupling agent is N- (β-aminoethyl)-γ-aminopropyl three
Methoxy silane or γ-methacryloxypropyl trimethoxy silane.Hydrolysis PA66 composition is sub- with poly- carbonization two
Amine and copper chloride are filled with alkali-free glass fibre and silicon powder as hydrolysis agent, effectively increase the hydrolytic resistance of composition
And mechanical property, it can be widely applied to the higher occasion of the humidity temperatures such as water pump, automobile water chamber.
Patent document CN107501928A discloses a kind of hydrolysis nylon material, and the hydrolysis nylon material is by nylon
56 resins, coupling agent, toughener, anti-hydrolysis agent, lubricant, release agent, antioxidant and glass fibre composition.It is prepared
Hydrolysis nylon material has the nylon material of high stiffness, high tenacity and good anti-hydrolytic performance, in automobile water chamber, meal
The fields such as the household electrical appliances such as tool, kitchen tools, auto parts and components have a good application prospect and commercial value.
However, since PA66 raw material hygroscopicity is stronger, and contain amide group susceptible to hydrolysis in strand, nylon
Heat resistance also poor defect, causes poor containing stability of material made of nylon PA66, and material is easy during preservation
There is phenomena such as fracture, decorative pattern, strength reduction, also can lead to water chamber material there is a situation where being unable to continuous production in production
It is not able to satisfy the demand in market still.
Therefore, researching and developing out the high automobile water chamber material low with hygroscopicity of a kind of superior performance, stability is still mesh
The problem of preceding urgent need to resolve.
Summary of the invention
In order to overcome in the prior art nylon material be applied to automobile water chamber present in defect.It is an object of the invention to
A kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material and preparation method thereof is provided, to solve drawbacks described above.
The present invention provides a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber materials, including following component and its parts by weight:
55.5~64.2 parts of PA66 resin, 5~10 parts of PA6T resin, 29~31 parts of glass fibre, 1~2 part of antioxidant, profit
0.5~1 part of lubrication prescription, 0.3~0.5 part of N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester 0.2~0.4
Part.
Further, the high temperature resistance glass fiber reinforced plastic PA66 water chamber material includes following component and its parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre, 1.6 parts of antioxidant, 0.8 part of lubricant, N-
0.4 part and 0.3 part of epoxy phosphate ester of aminoethyl -3- aminopropyltriethoxy dimethoxysilane.
Further, the glass fibre is glass fibre E-CR glass.
Further, the lubricant is silicone.
Further, the antioxidant is by antioxidant 1010 and antioxidant 1098 by weight (2~4): (1~3) forms.
Further, the antioxidant is made of antioxidant 1010 and antioxidant 1098 by weight 3:2.
In addition, the present invention also provides the preparation methods of the high temperature resistance glass fiber reinforced plastic PA66 water chamber material, including with
Lower step:
S1 adds PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
Enter in open mill, 8~10min is kneaded under the conditions of 85~95 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of the mixture I that step S1 is obtained and step S2 is kneaded 8 under the conditions of 120~150 DEG C by S3
~20min, is cooled to 30~35 DEG C, and discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, squeeze out, be granulated, packaging to get.
Further, the double screw extruder includes nine bringing-up sections, the temperature of the head of the double screw extruder
It is 265~275 DEG C.
Further, the heating condition of the double screw extruder are as follows: the temperature of first bringing-up section is 230~235
DEG C, the temperature of second bringing-up section is 235~240 DEG C, and the temperature of the third bringing-up section is 240~245 DEG C, the described 4th
The temperature of bringing-up section is 245~250 DEG C, and the temperature of the 5th bringing-up section is 250~255 DEG C, the temperature of the 6th bringing-up section
Degree is 255~260 DEG C, and the temperature of the 7th bringing-up section is 260~265 DEG C, the temperature of the 8th bringing-up section is 265~
270 DEG C, the temperature of the 9th bringing-up section is 270~275 DEG C.
Currently, automobile water chamber material is all made of the 30% glass fiber reinforced nylon material system of modification of heat-resisting, resistance to long-acting freezing liquid
At.Since the hygroscopicity of such raw material is stronger, the prior art is usually to carry out dehumidification treatments when dry.But current work
Skill cannot completely remove the moisture of such raw material, in production frequent occurrence due to product produces fracture and cause cannot be continuous
The phenomenon that production, and even if production when reach effect on moisture extraction, the material in preservation or use process still can moisture absorption,
Produce fracture product during preservation or use, decorative pattern, strength reduction the defects of, seriously affect the matter of automobile water chamber
Amount.
N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane is commonly used for coupling agent, it can be dropped in plastic processes
The viscosity of low molten synthetic resin improves the dispersion degree of filler to improve processing performance, and then product is made to obtain good table
Face quality and machinery, heat and electrical property.
And the present inventor is largely groping in test to be found surprisingly that, N- aminoethyl -3- aminopropyltriethoxy dimethoxy
Silane and epoxy phosphate ester, which are used in combination, can solve the hygroscopic moisture in preservation or use process of PA66 resin and PA6T resin
The defect that solution causes performance to decline, can be improved the product of water chamber material, and extend automobile water chamber uses the time.Present invention addition
N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane can be coated under the action of epoxy phosphate ester PA66 resin and
The surface of PA6T resin, so that the hygroscopicity of PA66 resin and PA6T resin is reduced, meanwhile, epoxy phosphate ester can reduce air
In PA66 resin and PA6T commercial resin steam partial pressure, thus further reduce PA66 resin and PA6T resin suction
It is moist.
Further, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane provided by the invention and silicone interact
Collaboration plays resistant to hydrolysis, so as to improve the hydrolytic resistance of water chamber material.Further study show that principle is silicone
The hydrophobic of the N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane for being coated on PA66 resin and PA6T resin surface can be improved
Property, one layer of fine and close hydrophobic layer is formed on the surface of PA66 resin and PA6T resin, can be made with effective solution water chamber material
With occurring the defect for hydrolyzing and leading to fracture, performance decline in the process, it can effectively extend the service life of automobile water chamber material.
Meanwhile epoxy phosphate ester provided by the invention can promote the combination of PA66 resin and PA6T resin and glass fibre
Intensity improves the compactness of structure, reduces the gap on surface, is capable of forming the firm combination interface of resin and glass, can be with
The destruction of the coolant liquids such as ethylene glycol is prevented, to further improve the hydrolytic resistance of water chamber material, improves the production of water chamber material
Quality.
In addition, dry using nine sections of heating in the preparation process of high temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention
Dry dehumidification mode, every section of heating temperature gradually rise, and can achieve the effect effectively to dehumidify, can effectively improve water chamber material
The stability of material, to further improve the product quality of water chamber material.
High temperature resistance glass fiber reinforced plastic PA66 water chamber material prescription collocation provided by the invention is reasonable, scientific, and each component collaboration mentions
Tensile strength, bending strength, bending modulus, the notch impact strength of high water chamber material, while water chamber material can also be reduced
Hygroscopicity improves water resistance and heat-resisting quantity, is a kind of ideal high temperature resistance glass fiber reinforced plastic PA66 water chamber material.
Compared with prior art, high temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention has the advantage that
(1) high temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention has tensile strength, bending strength, bending die
Amount and the high advantage of notch impact strength, comply fully with the requirement of automobile water chamber material；
(2) high temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention also has that hygroscopicity is low, water resistance is high, stablizes
Property high advantage, the product quality of water chamber material can be effectively improved, to effectively extend the service life of automobile water chamber.
Specific embodiment:
The following describes the present invention further through the description of specific embodiments, but it is to limit of the invention that this, which is not,
System, those skilled in the art's basic thought according to the present invention can make various modifications or improvements, but without departing from this
The basic thought of invention, is all within the scope of the present invention.Ingredient of the invention is conventional commercially available material, and PA66 resin is poly-
Hexamethylene adipamide resin, PA6T resin are poly- hexamethylene terephthalamide resin, are purchased from Mitsui Chemical Co., Ltd., silicon
Ketone is purchased from Suzhou Zhuan Xin Electron Material Co., Ltd.Epoxy phosphate ester is purchased from Qingdao Grand Marnier Fine Chemical Co., Ltd.
Embodiment 1, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
55.5 parts of PA66 resin, 5 parts of PA6T resin, 29 parts of glass fibre E-CR glass, 1 part of antioxidant, 0.5 part of silicone,
0.3 part and 0.2 part of epoxy phosphate ester of N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane；The antioxidant is by antioxidant
The 1010 and 2:3 by weight of antioxidant 1098 is formed.
Preparation process:
S1 adds PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
Enter in open mill, is kneaded 10min under the conditions of 85 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of the mixture I that step S1 is obtained and step S2 is kneaded 20min under the conditions of 120 DEG C by S3,
30 DEG C are cooled to, discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, the double screw extruder includes nine
Bringing-up section, the temperature of the head of the double screw extruder are 265 DEG C, the heating condition of the double screw extruder are as follows: described
The temperature of first bringing-up section is 230 DEG C, and the temperature of second bringing-up section is 235 DEG C, and the temperature of the third bringing-up section is 240
DEG C, the temperature of the 4th bringing-up section is 245 DEG C, and the temperature of the 5th bringing-up section is 250 DEG C, the temperature of the 6th bringing-up section
Degree is 255 DEG C, and the temperature of the 7th bringing-up section is 260 DEG C, and the temperature of the 8th bringing-up section is 265 DEG C, and the described 9th adds
The temperature of hot arc be 270 DEG C, squeeze out, be granulated, packaging to get.
Embodiment 2, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre E-CR glass, 1.6 parts of antioxidant, silicone 0.8
Part, 0.4 part and 0.3 part of epoxy phosphate ester of N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane；The antioxidant is by antioxidant
The 1010 and 3:2 by weight of antioxidant 1098 is formed.
Preparation process:
S1 adds PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
Enter in open mill, is kneaded 9min under the conditions of 90 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of the mixture I that step S1 is obtained and step S2 is kneaded 15min under the conditions of 130 DEG C by S3,
30 DEG C are cooled to, discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, the double screw extruder includes nine
Bringing-up section, the temperature of the head of the double screw extruder are 270 DEG C, the heating condition of the double screw extruder are as follows: described
The temperature of first bringing-up section is 233 DEG C, and the temperature of second bringing-up section is 238 DEG C, and the temperature of the third bringing-up section is 243
DEG C, the temperature of the 4th bringing-up section is 248 DEG C, and the temperature of the 5th bringing-up section is 253 DEG C, the temperature of the 6th bringing-up section
Degree is 258 DEG C, and the temperature of the 7th bringing-up section is 263 DEG C, and the temperature of the 8th bringing-up section is 268 DEG C, and the described 9th adds
The temperature of hot arc be 273 DEG C, squeeze out, be granulated, packaging to get.
Embodiment 3, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
64.2 parts of PA66 resin, 10 parts of PA6T resin, 31 parts of glass fibre E-CR glass, 2 parts of antioxidant, 1 part of silicone, N-
0.5 part and 0.4 part of epoxy phosphate ester of aminoethyl -3- aminopropyltriethoxy dimethoxysilane；The antioxidant is by antioxidant 1010
It is formed with antioxidant 1098 by weight 4:1.
Preparation process:
S1 adds PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
Enter in open mill, is kneaded 8min under the conditions of 95 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of the mixture I that step S1 is obtained and step S2 is kneaded 10min under the conditions of 150 DEG C by S3,
35 DEG C are cooled to, discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, the double screw extruder includes nine
Bringing-up section, the temperature of the head of the double screw extruder are 275 DEG C, the heating condition of the double screw extruder are as follows: described
The temperature of first bringing-up section is 235 DEG C, and the temperature of second bringing-up section is 240 DEG C, and the temperature of the third bringing-up section is 245
DEG C, the temperature of the 4th bringing-up section is 250 DEG C, and the temperature of the 5th bringing-up section is 255 DEG C, the temperature of the 6th bringing-up section
Degree is 260 DEG C, and the temperature of the 7th bringing-up section is 265 DEG C, and the temperature of the 8th bringing-up section is 270 DEG C, and the described 9th adds
The temperature of hot arc be 275 DEG C, squeeze out, be granulated, packaging to get.
Comparative example 1, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
67.5 parts of PA66 resin, 30.4 parts of glass fibre E-CR glass, 1.6 parts of antioxidant, 0.8 part of silicone, N- aminoethyl-
0.4 part and 0.3 part of epoxy phosphate ester of 3- aminopropyltriethoxy dimethoxysilane；The antioxidant is by antioxidant 1010 and antioxidant
1098 form by weight 3:2.
Preparation method is similar to Example 2.
The difference from example 2 is that lacking PA6T resin.
Comparative example 2, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre E-CR glass, 1.6 parts of antioxidant, silicone 0.8
0.4 part and 0.3 part of epoxy phosphate ester of part, N- (β-aminoethyl)-γ-aminopropyltrimethoxysilane；The antioxidant is by antioxygen
Agent 1010 and antioxidant 1098 are formed by weight 3:2.
Preparation method is similar to Example 2.
The difference from example 2 is that N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane is replaced with N- (β-ammonia
Ethyl)-γ-aminopropyltrimethoxysilane.
Comparative example 3, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre E-CR glass, 1.6 parts of antioxidant, silicone 0.8
Part and 0.7 part of dimethoxysilane of N- aminoethyl -3- aminopropyltriethoxy；The antioxidant is by antioxidant 1010 and antioxidant 1098
It is formed by weight 3:2.
Preparation method is similar to Example 2.
The difference from example 2 is that lacking epoxy phosphate ester.
Comparative example 4, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The high temperature resistance glass fiber reinforced plastic PA66 water chamber material is made of following component and its parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre E-CR glass, 1.6 parts of antioxidant, OP wax 0.8
Part, 0.4 part and 0.3 part of epoxy phosphate ester of N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane；The antioxidant is by antioxidant
The 1010 and 3:2 by weight of antioxidant 1098 is formed.
Preparation method is similar to Example 2.
The difference from example 2 is that silicone is replaced with OP wax.
Comparative example 5, a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material
The component and its parts by weight such as embodiment 2 of the high temperature resistance glass fiber reinforced plastic PA66 water chamber material.
The preparation method is that:
S1 adds PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
Enter in open mill, is kneaded 9min under the conditions of 90 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of the mixture I that step S1 is obtained and step S2 is kneaded 15min under the conditions of 130 DEG C by S3,
30 DEG C are cooled to, discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, the double screw extruder includes nine
Bringing-up section, the temperature of first bringing-up section are 255 DEG C, and the temperature of the second bringing-up section, third bringing-up section and the 4th bringing-up section is equal
It is 265 DEG C, the temperature of the 5th bringing-up section, the 6th bringing-up section and the 7th bringing-up section is 250 DEG C, the 8th bringing-up section and the 9th heating
The temperature of section is 250 DEG C, and the temperature of the head of double screw extruder is 260 DEG C, is squeezed out, and is granulated, packaging to get.
Test example one, the test of the performance detection of high temperature resistance glass fiber reinforced plastic PA66 water chamber material paint film
1, test material:
It is prepared by embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5
Obtained high temperature resistance glass fiber reinforced plastic PA66 water chamber material.
2, test method:
Embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5 are made
Standby obtained high temperature resistance glass fiber reinforced plastic PA66 water chamber material stands 2.5h under conditions of relative humidity is 10%, then adjusts phase
It is 85% to humidity, stands 2.5h, calculates hygroscopicity, hygroscopic formula are as follows:
Hygroscopicity=m2-m1/M
Wherein: m1The weight (g) of 2.5h is stood under conditions of relative humidity is 10% for water chamber material,
m2It is water chamber material in the weight (g) that relative humidity is 85% standing 2.5h,
M is the weight (g) of the water chamber material after drying.
3, test result:
Test result is as shown in table 1.
The detection test of 1 high temperature resistance glass fiber reinforced plastic PA66 water chamber material hygroscopicity of table
| Group | Hygroscopicity (mg/g) |
| Embodiment 1 | 0.4 |
| Embodiment 2 | 0.2 |
| Embodiment 3 | 0.5 |
| Comparative example 1 | 1.7 |
| Comparative example 2 | 3.5 |
| Comparative example 3 | 3.0 |
| Comparative example 4 | 2.1 |
| Comparative example 5 | 2.6 |
As shown in Table 1, the high temperature resistance glass fiber reinforced plastic PA66 water chamber material that the embodiment of the present invention 1~3 is prepared have compared with
Low hygroscopicity, hygroscopicity are lower than 0.5mg/g, and the high temperature resistance glass fiber reinforced plastic PA66 water chamber material that comparative example 1~5 is prepared
Moisture absorption it is stronger, be easy to appear water suction after hydrolysis cause automobile water chamber made of water chamber material to produce fracture, decorative pattern,
The phenomenon that strength reduction, seriously affects the performance of automobile water chamber.Illustrate high temperature resistance glass fiber reinforced plastic PA66 water chamber provided by the invention
The formula collocation of material is reasonable, scientific, and the mutually coordinated hygroscopicity that can effectively reduce water chamber material of each component improves water chamber
The stability of material.
The performance test of test example two, high temperature resistance glass fiber reinforced plastic PA66 water chamber material
1, test material:
It is prepared by embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5
Obtained high temperature resistance glass fiber reinforced plastic PA66 water chamber material.
2, test method:
Measure embodiment 1, embodiment 2, embodiment 3, comparative example 1, comparative example 2, comparative example 3, comparative example 4 and comparative example 5
The tensile strength of the high temperature resistance glass fiber reinforced plastic PA66 water chamber material being prepared, bending strength, bending modulus and notch shock are strong
Degree, test environment temperature are 23 DEG C.Wherein: tensile strength is measured with reference to GB/T1040 test method, and bending strength is curved
Bent modulus is measured with reference to GB/T9341 test method, and notch impact strength is carried out with reference to GB/T1843-2008 test method
Measurement.
3, test result:
Test result is as shown in table 2.
The performance test of 2 high temperature resistance glass fiber reinforced plastic PA66 water chamber material of table
As shown in Table 2, the obtained high temperature resistance glass fiber reinforced plastic PA66 water chamber material that prepared by the embodiment of the present invention 1~3 stretches
Intensity >=190MPa, bending strength >=250MPa, bending modulus >=8500MPa, notch impact strength >=12KJ/m2, and compare
Tensile strength, bending strength, bending modulus and the notch punching of high temperature resistance glass fiber reinforced plastic PA66 water chamber material is prepared in example 1~5
Hit intensity performance is poor, illustrates that each ingredient interaction of high temperature resistance glass fiber reinforced plastic PA66 water chamber material provided by the invention can have
The performance of the raising water chamber material of effect.
In addition, automobile water chamber surface-brightening made of water chamber material provided by the invention, with 100% pure ethylene glycol 135
Under DEG C environment after heat soaking 48h, the phenomenon that not generating radial cracking at weld mark, the phenomenon that also cracking without any penetrability,
It is a kind of ideal water chamber material.
Claims (9)
1. a kind of high temperature resistance glass fiber reinforced plastic PA66 water chamber material, which is characterized in that including following component and its parts by weight:
55.5~64.2 parts of PA66 resin, 5~10 parts of PA6T resin, 29~31 parts of glass fibre, 1~2 part of antioxidant, lubricant
0.5~1 part, 0.3~0.5 part and 0.2~0.4 part of epoxy phosphate ester of N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane.
2. high temperature resistance glass fiber reinforced plastic PA66 water chamber material as described in claim 1, which is characterized in that including following component and its
Parts by weight:
59.5 parts of PA66 resin, 8 parts of PA6T resin, 30.4 parts of glass fibre, 1.6 parts of antioxidant, 0.8 part of lubricant, N- ammonia second
0.4 part and 0.3 part of epoxy phosphate ester of base -3- aminopropyltriethoxy dimethoxysilane.
3. high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 1 or 2, which is characterized in that the glass fibre
For glass fibre E-CR glass.
4. high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 1 or 2, which is characterized in that the lubricant is
Silicone.
5. high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 1 or 2, which is characterized in that the antioxidant by
Antioxidant 1010 and antioxidant 1098 are by weight (2~4): (1~3) composition.
6. high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 5, which is characterized in that the antioxidant is by antioxygen
Agent 1010 and antioxidant 1098 are formed by weight 3:2.
7. the preparation method of the high temperature resistance glass fiber reinforced plastic PA66 water chamber material as described in claim 1~6 is any, feature exist
In, comprising the following steps:
S1 opens the addition of PA66 resin, PA6T resin, N- aminoethyl -3- aminopropyltriethoxy dimethoxysilane and epoxy phosphate ester
In mill, it is kneaded 8~10min under the conditions of 85~95 DEG C, obtains mixture I；
S2 stirs evenly glass fibre, antioxidant and mix lubricant, obtains mixtures II；
The obtained mixtures II of mixture I that step S1 is obtained and step S2 is kneaded 8 by S3 under the conditions of 120~150 DEG C~
20min, is cooled to 30~35 DEG C, and discharging obtains mixtures III；
In the mixtures III investment double screw extruder that S4 obtains step S3, squeeze out, be granulated, packaging to get.
8. the preparation method of high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 7, which is characterized in that described double
Screw extruder includes nine bringing-up sections, and the temperature of the head of the double screw extruder is 265~275 DEG C.
9. the preparation method of high temperature resistance glass fiber reinforced plastic PA66 water chamber material as claimed in claim 8, which is characterized in that described double
The heating condition of screw extruder are as follows: the temperature of first bringing-up section is 230~235 DEG C, the temperature of second bringing-up section
It is 235~240 DEG C, the temperature of the third bringing-up section is 240~245 DEG C, and the temperature of the 4th bringing-up section is 245~250
DEG C, the temperature of the 5th bringing-up section is 250~255 DEG C, and the temperature of the 6th bringing-up section is 255~260 DEG C, the described 7th
The temperature of bringing-up section is 260~265 DEG C, and the temperature of the 8th bringing-up section is 265~270 DEG C, the temperature of the 9th bringing-up section
Degree is 270~275 DEG C.
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