CN103242653B - A kind of high gloss nylon PA66 matrix material and preparation method thereof and the application on automobile - Google Patents
A kind of high gloss nylon PA66 matrix material and preparation method thereof and the application on automobile Download PDFInfo
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- CN103242653B CN103242653B CN201210295428.4A CN201210295428A CN103242653B CN 103242653 B CN103242653 B CN 103242653B CN 201210295428 A CN201210295428 A CN 201210295428A CN 103242653 B CN103242653 B CN 103242653B
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Abstract
The invention discloses a kind of high gloss nylon PA66 matrix material, by the nylon PA66 of modification? A material and B material mixing afterwards extruding pelletization and obtaining, the invention also discloses the application of nylon PA66 particle material on automobile component of the modification of gained, dried modifying material mainly joins in the injection moulding machine that heated up by it, by setting injection pressure, speed, the inject time of the different section of injection moulding machine and injecting glue amount, set the Shooting Technique that last dwell pressure and pressurize speed have reached best simultaneously, obtain final qualified product.With the plastic connector for automobile of the nylon PA66 particle material injection moulding of modification of the present invention, have surface smoothness high, good toughness, intensity is high, the features such as good flame resistance, Shooting Technique is stablized simultaneously, constant product quality, qualification rate is high, improves production efficiency, reduces production cost.
Description
Technical field
The present invention relates to engineering plastics field, be specifically related to a kind of high gloss nylon of modification PA66 matrix material and preparation method thereof and application.
Background technology
Nylon is that a computer MSR Information system under the outstanding scientist's Tomas Carothers (Carothers) of the U.S. and leader thereof is developed, and is the first synthon occurred in the world.The appearance of nylon makes assuming an entirely new aspect of textiles, and its synthesis is the important breakthrough of synthetic fiber industry, is also an important milestone of polymer chemistry simultaneously.
Because nylon has a lot of characteristics, therefore, be used widely in automobile, electric installation, Machinery Ministry structure, transportation equipment, weaving, papermaking equipment etc.
Along with the miniaturization of automobile, the high performance of electronic electric equipment, the light-weighted progress faster of mechanical means, will more Gao Geng great to the demand of nylon.Particularly nylon is as structural material, proposes very high requirement to aspects such as its intensity, thermotolerance, winter hardiness.The inherent defect of nylon is also the important factor limiting its application, and particularly for the large kind of PA6, PA66 two, due to the strong polarity of PA, water absorbability is strong, poor dimensional stability, but can be improved by modification.Mainly adopt in prior art and in nylon material, add toughner composite mode modification is carried out to nylon, but after various material mixing, it is not good that each component melts dispersiveness in process altogether, each group partition inter-capacitive is poor, intensity, toughness, erosion resistance are not enough, material cost is higher, demoulding difficulty, surface gloss is poor, and processing characteristics is bad, unstable product quality, therefore, the present invention is exactly for the deficiencies in the prior art, and the one of employing is completely newly filled a prescription, and special process, to the modification that nylon carries out.Adopt junctor, the connector assembly on modified material produce processing automobile, performance is very significantly improved.
Summary of the invention
In order to alleviate shortcomings and deficiencies of the prior art, the object of the present invention is to provide a kind of high gloss nylon PA66 matrix material and preparation method thereof and the application on auto parts machinery.With the plastic connector for automobile of the nylon PA66 particle material injection moulding of modification of the present invention, there is easy-formation, the easy demoulding, the surface smoothness of product is high, good toughness, intensity high, Shooting Technique stability, products obtained therefrom steady quality, improves production efficiency, reduces production cost.
The present invention adopts following technical scheme to achieve these goals:
A kind of high gloss nylon PA66 matrix material, it is expected by A and B expects that being mixed in proportion extrusion molding forms, and the mixed weight that A material and B expect is than being 1-2:1, and described A material, B material are obtained by the raw material extrusion granulating of following weight part respectively:
A expects:
Nylon PA6630-40, ABS resin 30-40, polycarbonate 10-15, aminopropyl triethoxysilane 0.2-0.5, Union carbide A-162 0.3-0.5, antioxidant 1010 0.1-0.6, Imarcaptoacetate dioctyltin 0.1-0.4, polycaprolactone 2-5, polyethylene wax 1-2, modified Nano powder 5-10
Described modified Nano powder is obtained by following method: after calcium carbonate, celestite powder, the mixing of feldspar in powder equal proportion, scaling loss 4-5 hour at 600-700 DEG C, then nanometer powder is ground to form, admix the Di(dioctylpyrophosphato) ethylene titanate agitating being equivalent to powder weight 3-5% even, dry, be ground into powder;
B expects:
Nylon PA61060-70, ABS resin 10-15, poly-4-methyl-1-pentene 5-10, oxidation inhibitor 1035 oxidation inhibitor 10350.1-0.3, ABS high glue powder 2-3, SAN6-8, polycaprolactone 2-5, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.20-0.4, aluminate coupling agent DL-4110.3-0.7, two Lauryl Alcohol ester 0.5-1, ethylene bis stearamide 1-2, attapulgite modified 5-10%
Described attapulgite modifiedly to be obtained by following method: first use 15-20% salt acid soak attapulgite 1-2 hour, leave standstill, clarification, centrifugal, solid washed with water is extremely neutral, after oven dry, add the vinyltriethoxysilane agitating being equivalent to solid weight 3-5% even, dry, be ground into powder
.
The preparation method of described high gloss nylon PA66 matrix material, comprises the following steps:
The first step prepares A material:
(1) each formula material is taken by formula rate;
(2) starting material will weighed up, after mixing, suck dry bucket, at 90-100 DEG C, and dry 4-6 hour;
(3) when the water content of compound is less than 0.2%, dry end;
(4) adopt twin screw extruder to carry out extruding pelletization, the barrel zone temperature 245-280 DEG C of forcing machine dried mixture, screw speed is 190-550rpm;
Second step prepares B material: the identical technique adopting same A to expect carries out granulation;
3rd step A material expects mixing granulation with B:
(1) by A material obtained for first two steps and B material, after the weight ratio mixing of 1-2:1, extrusion granulating, obtains the High impact nylon particle material of final ABS modification.
Described high gloss nylon PA66 matrix material is applied on automobile, prepares connector flap-type sheath plug boot DJ7075-3-11.
Beneficial effect of the present invention:
High gloss nylon PA66 matrix material prepared by the inventive method, has good fluidity, easily processes, easy demoulding during injection moulding, the surface smoothness high of product, with the plastic connector for automobile of the nylon PA66 particle material injection moulding of modification of the present invention, there is surface smoothness high, good toughness, the features such as intensity is high, good flame resistance, Shooting Technique is stablized simultaneously, constant product quality, and qualification rate is high, improve production efficiency, reduce production cost.
Embodiment
embodiment 1
Prepare high gloss nylon PA66 matrix material, concrete steps are:
The first step: preparation A material (kg):
Take nylon PA6630, ABS resin 40, polycarbonate 15, aminopropyl triethoxysilane 0.2, Union carbide A-162 0.4, antioxidant 1010 0.2, Imarcaptoacetate dioctyltin 0.3, polycaprolactone 2, polyethylene wax 1.5, modified Nano powder 6
Wherein, modified Nano powder is obtained by following method: after calcium carbonate, celestite powder, the mixing of feldspar in powder equal proportion, scaling loss 4-5 hour at 600-700 DEG C, then nanometer powder is ground to form, admix the Di(dioctylpyrophosphato) ethylene titanate agitating being equivalent to powder weight 3-5% even, dry, be ground into powder
By the starting material weighed up, after mixing, suck dry bucket, at 90-100 DEG C, dry 4-6 hour;
When the water content of compound is less than 0.15%, dry end;
Adopt twin screw extruder to carry out extruding pelletization dried mixture, obtain A material, the barrel zone temperature 245-280 DEG C of forcing machine, screw speed is 480rpm;
Second step prepares B material (kg):
Take nylon PA61065, ABS resin 10, poly-4-methyl-1-pentene 5, oxidation inhibitor 10350.2, ABS high glue powder 2, SAN6, polycaprolactone 2, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.2, aluminate coupling agent DL-4110.4, two Lauryl Alcohol ester 0.6, ethylene bis stearamide 1.5, attapulgite modified 8
Wherein, attapulgite modifiedly to be obtained by following method: first use 10% salt acid soak attapulgite 2 hours, leave standstill, clarification, centrifugal, collect solid material, solid material washes with water to neutrality again, and after oven dry, it is even to add the vinyltriethoxysilane agitating being equivalent to solid weight 4%, dry, be ground into powder
,can obtain attapulgite modified,
By the starting material weighed up, after mixing, suck dry bucket, at 90-100 DEG C, dry 4-6 hour;
When the water content of compound is less than 0.15%, dry end;
Adopt twin screw extruder to carry out extruding pelletization dried mixture, obtain B material, the barrel zone temperature 240-270 DEG C of forcing machine, screw speed is 450rpm;
3rd step: expected to mix with the B of 40kg by the A of above-mentioned obtained 50kg material, add in twin screw extruder through main spout, controlled working temperature is at 245-270 DEG C, and screw rod revolution is at 500rpm, and after melting, namely extruding pelletization obtains high gloss nylon PA66 matrix material.
embodiment 2
With the high gloss nylon PA66 matrix material that embodiment 1 is obtained, prepare the connector flap-type plug boot DJ7075-3-11 on automobile, comprise the following steps:
(1), after 25kg high gloss nylon PA66 matrix material and 30g titanium dioxide, the yellow powder of 10g being mixed, add dryer, at 100-120 DEG C, dry 6h,
(2) temperature of injection moulding machine heating zone is set: first paragraph 275 ± 5 DEG C, second segment 270 ± 5 DEG C, the 3rd section 265 ± 5 DEG C DEG C, the 4th section 260 ± 5 DEG C, the 5th section 255 ± 5 DEG C;
(3) dried starting material are joined in injection moulding machine, injection moulding section molding technique parameter are set:
A, first paragraph adopt the mesolow of 35-40Mpa, the medium velocity injection of 45-55m/s, and inject time is 1.0-1.5 second, and injection glue amount is to the 78-80% of product;
B, second segment adopt the mesolow of 30-35Mpa, the medium velocity injection of 45-55m/s, and inject time is 0.5-1.0 second, and injection glue amount is to 100% of water port of product, and then injection moulding, shaping, the demoulding, obtain the finished product plug boot DJ7075-3-11.
testing data
The Performance Detection of the plug boot DJ7075-3-11 on automobile that the present invention obtains:
Claims (4)
1. a high gloss nylon PA66 matrix material, it is characterized in that, it is expected by A and B expects that being mixed in proportion extrusion molding forms, the mixed weight that A material and B expect is than being 1-2:1, described A material, B material is obtained by the raw material extrusion granulating of following weight part respectively: A expects: nylon PA6630-40, ABS resin 30-40, polycarbonate 10-15, aminopropyl triethoxysilane 0.2-0.5, Union carbide A-162 0.3-0.5, antioxidant 1010 0.1-0.6, Imarcaptoacetate dioctyltin 0.1-0.4, polycaprolactone 2-5, polyethylene wax 1-2, modified Nano powder 5-10, described modified Nano powder is obtained by following method: by calcium carbonate, celestite powder, after the mixing of feldspar in powder equal proportion, scaling loss 4-5 hour at 600-700 DEG C, then nanometer powder is ground to form, admix the Di(dioctylpyrophosphato) ethylene titanate agitating being equivalent to powder weight 3-5% even, dry, be ground into powder, B expects: NYLON610 60-70, ABS resin 10-15, poly-4-methyl-1-pentene 5-10, oxidation inhibitor 10350.1-0.3, ABS high glue powder 2-3, SAN6-8, polycaprolactone 2-5, sec.-propyl three (dioctylphyrophosphoric acid acyloxy) titanic acid ester 0.20-0.4, aluminate coupling agent DL-4110.3-0.7, two Lauryl Alcohol ester 0.5-1, ethylene bis stearamide 1-2, attapulgite modified 5-10, described attapulgite modifiedly to be obtained by following method: first use 15-20% salt acid soak attapulgite 1-2 hour, leave standstill, clarification, centrifugal, solid washed with water is to neutral, after oven dry, add the vinyltriethoxysilane agitating being equivalent to solid weight 3-5% even, dry, be ground into powder.
2. the preparation method of high gloss nylon PA66 matrix material as claimed in claim 1, is characterized in that, comprise the following steps: the first step prepares A material: take each formula material by formula rate; By the starting material weighed up, after mixing, suck dry bucket, at 90-100 DEG C, warm air drying 4-6 hour; When the water content of compound is less than 0.2%, dry end; Adopt twin screw extruder to carry out extruding pelletization, the barrel zone temperature 245-280 DEG C of forcing machine dried mixture, screw speed is 190-550rpm; Second step prepares B material: the identical technique adopting same A to expect carries out granulation; 3rd step A material expect mixing granulation with B: expected by A obtained for first two steps and B expects, after mixing according to the weight ratio of 1-2:1, extrusion granulating, obtains the High impact nylon particle material of final ABS modification.
3. the application of high gloss nylon PA66 matrix material according to claim 1 on automobile, is characterized in that: prepare connector flap-type plug boot DJ7075-3-11.
4. application according to claim 3, is characterized in that: the preparation method preparing connector flap-type plug boot DJ7075-3-11, comprises the following steps:
(1), after 25kg high gloss nylon PA66 matrix material and 30g titanium dioxide, the yellow powder of 10g being mixed, add dryer, at 100-120 DEG C, dry 6h;
(2) temperature of injection moulding machine heating zone is set: first paragraph 275 ± 5 DEG C, second segment 270 ± 5 DEG C, the 3rd section 265 ± 5 DEG C DEG C, the 4th section 260 ± 5 DEG C, the 5th section 255 ± 5 DEG C;
(3) dried starting material are joined in injection moulding machine, injection moulding, shaping, the demoulding, injection moulding section molding technique parameter is set:
A, first paragraph adopt the mesolow of 35-40MPa, the medium velocity injection of 45-55m/s, and inject time is 1.0-1.5 second, and injection glue amount is to the 78-80% of product;
B, second segment adopt the mesolow of 30-35MPa, the medium velocity injection of 45-55m/s, and inject time is 0.5-1.0 second, and injection glue amount is to 100% of water port of product.
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| CN103884513B (en) * | 2014-02-27 | 2015-03-25 | 宁波工程学院 | Automotive rearview mirror fatigue strength reliability testing device |
| JP2023530295A (en) * | 2020-06-10 | 2023-07-14 | ニロ グローバル リミティド | Plastic processing system and equipment |
| AU2021204547B2 (en) * | 2020-06-10 | 2023-07-06 | Nilo Limited | Plastic processing system and apparatus |
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