CN106883598A - Semi-aromatic nylon fiber reinforced nylon composite material and its preparation method and application - Google Patents
Semi-aromatic nylon fiber reinforced nylon composite material and its preparation method and application Download PDFInfo
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Abstract
The invention provides a kind of semi-aromatic nylon fiber reinforced nylon composite material and its preparation method and application；Nylon material is included：50-95 parts of nylon 6,5-50 part semi-aromatic nylon fiber, 0.3-0.8 parts of antioxidant, 0.5-1.5 parts of lubricant and 0.3-0.8 parts of crystallization nucleating agent；Preparation method includes：By nylon, antioxidant, lubricant and in high-speed mixer for dry mixing, obtain premix, the premix is added from the main spout of double screw extruder, semi-aromatic nylon fiber is added from the side spout of double screw extruder, through melting extrusion, check rod and granulation, semi-aromatic nylon fiber reinforced nylon composite material is obtained；Semi-aromatic nylon fiber reinforced nylon composite material of the invention not only has excellent heat resistance and mechanical property, and preparation method is simple, and production efficiency is high, is adapted to industrialized production.
Description
Technical field
The invention belongs to technical field of polymer materials, it is related to a kind of enhancing nylon composite materials and its preparation method and application.
Background technology
Nylon 6 as nylon plastic(s) one of principal item because it has the preferably performance such as mechanical property, heat-resisting and wear-resisting,
So relatively broad application has been obtained at present, however, the light-weighted hair of the high performance of electronic electric equipment or plant equipment
Open up the aspects such as intensity, heat resistance, cold resistance, dimensional stability to nylon and propose requirement higher.Therefore, by modified
Some performances to improve or improve nylon just turn into important research topic further to expand its range of application.
The content of the invention
It is a primary object of the present invention to provide a kind of semi-aromatic nylon fiber reinforced nylon composite material.
Second object of the present invention is the preparation method of the semi-aromatic nylon fiber reinforced nylon composite material for providing above-mentioned.
Third object of the present invention is to provide the application of above-mentioned semi-aromatic nylon fiber reinforced nylon composite material.
To reach above-mentioned purpose, solution of the invention is：
A kind of semi-aromatic nylon fiber reinforced nylon composite material, it contains following components and each component has following weight portion：
Wherein, above-mentioned semi-aromatic nylon fiber is continuous fiber of the fusing point more than 310 DEG C, and its diameter can be 8-20 μm.
Semi-aromatic nylon fiber can selected from nylon 4T fibers, nylon 5T fibers, nylon 6T fibers, nylon 6T/66 fibers,
Nylon 6T/6 fibers, nylon 6T/6I fibers, nylon 6T/6I/66 fibers, nylon 6T/6I/6 fibers, nylon 6T/610 fibers,
Any one or a few in nylon 6T/10T fibers, nylon 9 T fibers and nylon 10T fibers.
Antioxidant can be phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant.
Above-mentioned phosphite kind antioxidant can be preferably three (2,4- di-tert-butyl-phenyl) phosphite esters or four (2,4- bis- tertiary fourths
Base phenyl -4,4- xenyls) biphosphonate.
Above-mentioned Hinered phenols antioxidant can be preferably N, N'- is double-(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) oneself two
Double [the β-(3- tertiary butyl-4-hydroxies -5- of amine, 3- (3,5- di-tert-butyl-hydroxy phenyl) propionic acid n-octadecane alcohol esters or triethylene-glycol
Aminomethyl phenyl)-propionic ester.
Above-mentioned monothioester kind antioxidant can be preferably the double tetradecane esters of 3,3- thio-2 acids, thio-2 acid 2 stearyl ester
Or the double dodecane esters of thio-2 acid.
Lubricant can be selected from pentaerythritol stearate, lubricant GT-11 or lubricant RH-313 in any one or a few.
Crystallization nucleating agent can be selected from nano imvite, nano titanium oxide or crystallization nucleating agent P22 in any one or a few.
A kind of method for preparing above-mentioned semi-aromatic nylon fiber reinforced nylon composite material, it comprises the following steps：
(1), 50-95 parts of dry nylon 6,0.3-0.8 part antioxidant, 0.5-1.5 parts of lubricant and 0.3-0.8 parts are crystallized into
Core agent obtains premix in high-speed mixer for dry mixing；
(2), premix is added from the main spout of double screw extruder, by 5-50 parts of dry semi-aromatic nylon fiber from double
The side spout of screw extruder is added, and through melting extrusion, check rod and granulation, is obtained semi-aromatic nylon fiber reinforced nylon and is answered
Condensation material.
In step (1), obtained by dry nylon 6 dries 11-12h as nylon 6 at 90-110 DEG C.
In step (1), the dry-mixed time can be 5-10min.
In step (2), the processing temperature of double screw extruder can be 220-250 DEG C.
In step (2), double screw extruder may also take on zone temperature control, and area's temperature is 190 DEG C, two area's temperature
It it is 200 DEG C, three area's temperature are 205 DEG C, four area's temperature are 220-225 DEG C, and five area's temperature are 225-230 DEG C, and six area's temperature are
225-235 DEG C, seven area's temperature are 230-245 DEG C, and eight area's temperature are 230-245 DEG C, and nine area's temperature are 230-245 DEG C, ten area's temperature
It is 225-235 DEG C to spend, and head temperature is 225-230 DEG C, and screw speed is 200rpm.
Above-mentioned semi-aromatic nylon fiber reinforced nylon composite material can be used for making high temperature resistant component；Above-mentioned high temperature resistant portion
Part is including safe automobile air bag, tire cord, sewing thread, wear-resistant fabric and filtration fabrics etc..
Above-mentioned semi-aromatic nylon fiber reinforced nylon composite material can be also used for making various the zero of chemical machinery or equipment
Part, such as wear part, drive mechanism part or screw mandrel prevent part.
Due to using such scheme, the beneficial effects of the invention are as follows：
Firstth, the present invention using semi-aromatic nylon fiber come the matrix of modification of nylon 6, due to semi-aromatic nylon fiber and nylon
6 belong to nylon together, with similar chemical bond (amido link), therefore have preferable compatibility, the two active group in process
Can be reacted to each other between group (functional group) so that the interaction force between semi-aromatic nylon fiber and nylon-6 matrix body is strengthened,
Without add again other additives such as compatilizer or toughener can the good enhancing effect of acquirement (improve semi-aromatic nylon
Enhancing effect of the fiber to nylon-6 matrix body) so that final obtained semi-aromatic nylon fiber reinforced nylon composite material has
Intensity higher, heat distortion temperature and toughness and more preferable dimensional stability, to be adapted to the high performance of electronic electric equipment.
Secondth, the present invention also added crystallization nucleating agent in material system, substantially increase the crystallinity of nylon-6 matrix body, and
Further improve the mechanical property and heat resistance of finished product (i.e. semi-aromatic nylon fiber reinforced nylon composite material).
3rd, semi-aromatic nylon fiber and the melt blending of nylon 6 are directly prepared semi-aromatic nylon fiber reinforcement by the present invention
Nylon composite materials, the method step is simple, cost is relatively low, production efficiency is high, is adapted to industrial applications on a large scale, has
Good economic benefit.
Specific embodiment
The invention provides a kind of semi-aromatic nylon fiber reinforced nylon composite material and its preparation method and application.
<Semi-aromatic nylon fiber reinforced nylon composite material>
A kind of semi-aromatic nylon fiber reinforced nylon composite material, it contains following components and each component has following weight portion：
Wherein, each component of semi-aromatic nylon fiber reinforced nylon composite material of the invention can also be：
Nylon 6 can be more preferably 55-70 parts；And/or,
Semi-aromatic nylon fiber can be more preferably 30-45 parts；And/or,
Antioxidant can be more preferably 0.4-0.6 parts；And/or,
Lubricant can be more preferably 0.8-1.2 parts；And/or,
Crystallization nucleating agent can be more preferably 0.4-0.6 parts.
The weight portion of above-mentioned nylon 6 refers both to dried weight (dry weight).
In the material system of semi-aromatic nylon fiber reinforced nylon composite material of the invention, semi-aromatic nylon fiber can be with
Selected from continuous fiber of the fusing point more than 310 DEG C, and its diameter can be 8-20 μm.(i.e. semi-aromatic nylon is fine for finished product
Dimension enhancing nylon composite materials) inner fibre length is about 0.5mm.
Further, above-mentioned semi-aromatic nylon fiber can selected from nylon 4T fibers, nylon 5T fibers, nylon 6T fibers,
Nylon 6T/66 fibers, nylon 6T/6 fibers, nylon 6T/6I fibers, nylon 6T/6I/66 fibers, nylon 6T/6I/6 fibers, Buddhist nun
Any one or a few in imperial 6T/610 fibers, nylon 6T/10T fibers, nylon 9 T fibers and nylon 10T fibers.
Above-mentioned semi-aromatic nylon fiber is respectively provided with high-fire resistance, creep resistance at high temperature, relatively low shrinkage factor, higher
Flexibility, excellent wearability, excellent dimensional stability, good chemical resistance and preferable mechanical performance, and with
All aromatic nylon fiber is compared, and with more preferable machinability, therefore is used to be modified nylon 6.
Above-mentioned antioxidant is phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant.
Phosphite kind antioxidant can be preferably three (2,4- di-tert-butyl-phenyl) phosphite esters or four (2,4- di-tert-butyl-phenyls
- 4,4- xenyl) biphosphonate.
Hinered phenols antioxidant can be preferably N, N'- is double-(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine, 3- (3,
5- di-tert-butyl-hydroxy phenyls) double [β-(3- tertiary butyl-4-hydroxy -5- methylbenzenes of propionic acid n-octadecane alcohol ester or triethylene-glycol
Base)-propionic ester.
Monothioester kind antioxidant can be preferably the double tetradecane esters of 3,3- thio-2 acids, thio-2 acid 2 stearyl ester or thio
The double dodecane esters of dipropionic acid.
Lubricant can be selected from pentaerythritol stearate, lubricant GT-11 (commercially available) or lubricant RH-313 (commercially available)
Any one or a few.
Crystallization nucleating agent can be selected from nano imvite, nano titanium oxide or crystallization nucleating agent P22 in any one or a few.
<The preparation method of semi-aromatic nylon fiber reinforced nylon composite material>
A kind of preparation method of semi-aromatic nylon fiber reinforced nylon composite material, it comprises the following steps：
(1), 50-95 parts of dry nylon 6,0.3-0.8 part antioxidant, 0.5-1.5 parts of lubricant and 0.3-0.8 parts are crystallized into
Core agent obtains premix in high-speed mixer for dry mixing；
(2), premix is added from the main spout of double screw extruder, by 5-50 parts of dry semi-aromatic nylon fiber from double
The side spout of screw extruder is added, and through double screw extruder melting extrusion, check rod and the granulation, obtains semi-aromatic nylon
Fiber reinforced nylon composite material.
Wherein, in step (1), dry nylon 6 is dried obtained by 90-110 DEG C can drying 11-12h as nylon 6
Temperature can be preferably 100 DEG C, drying time can be preferably 12h.
In step (1), the weight portion of each component can also be preferably：55-70 parts of dry nylon 6；And/or, 30-45
Part semi-aromatic nylon fiber；And/or, 0.4-0.6 parts of antioxidant；And/or, 0.8-1.2 parts of lubricant；And/or, 0.4-0.6 parts
Crystallization nucleating agent.
In step (1), the dry-mixed time can be 5-10min, it may be preferred to be 10min.Dry-mixed being meant that will be various
Raw material components are directly mixed with solid-like, without adding solvent etc..
In step (2), the processing temperature of double screw extruder can be 220-250 DEG C.
In step (2), the processing temperature of double screw extruder is preferably takes zone temperature control, and area's temperature is 190 DEG C,
Two area's temperature are 200 DEG C, and three area's temperature are 205 DEG C, and four area's temperature are 220-225 DEG C, and five area's temperature are 225-230 DEG C, six
Area's temperature is 225-235 DEG C, and seven area's temperature are 230-245 DEG C, and eight area's temperature are 230-245 DEG C, and nine area's temperature are 230-245 DEG C,
Ten area's temperature are 225-235 DEG C, and head temperature is 225-230 DEG C, and screw speed is 200rpm.
In the temperature in above-mentioned each area, area's temperature, two area's temperature, three area's temperature, four area's temperature and five area's temperature are in gradually to rise
Trend high, i.e. five area's temperature>Four area's temperature>Three area's temperature>Two area's temperature>One area's temperature；Ten area's temperature are less than nine area's temperature.
Start each area's temperature (a such as area to 5th area) to gradually rise, can cause that the temperature of charge in each area progressivelyes reach suitable processing temperature,
Below because screw rod shearing causes that temperature of charge continues to raise, so reducing the temperature of area (Ru Shiqu) below to avoid material temperature
Spending height causes material to thermally decompose.
<The purposes of semi-aromatic nylon fiber reinforced nylon composite material>
Semi-aromatic nylon fiber reinforced nylon composite material of the invention can be used for making the high temperature resistant in household electrical appliance or automobile
Part, such that it is able to be used in hot environment (such as more than 150 DEG C).These high temperature resistant components include safe automobile air bag,
Tire cord, sewing thread, wear-resistant fabric and filtration fabrics etc..
Semi-aromatic nylon fiber reinforced nylon composite material of the invention can be also used for making various the zero of chemical machinery or equipment
Part, such as wear part, drive mechanism part or screw mandrel prevent part.
<Embodiment>
The present invention is further illustrated with reference to embodiments.
Embodiment one
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 1 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment one of table 1
In table 1, the weight portion of nylon 6 is dried weight (dry weight), as follows.
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 1
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 225 DEG C of areas, six 225 DEG C of areas, seven 235 DEG C of areas, eight 235 DEG C of areas, nine 235 DEG C of areas, ten 230 DEG C of areas,
230 DEG C of head temperature, screw speed is 200r/min.
Embodiment two
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 2 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment two of table 2
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 2
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 225 DEG C of areas, six 230 DEG C of areas, seven 240 DEG C of areas, eight 240 DEG C of areas, nine 235 DEG C of areas, ten 230 DEG C of areas,
230 DEG C of head temperature, screw speed is 200r/min.
Embodiment three
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 3 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment three of table 3
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 3
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 225 DEG C of areas, six 225 DEG C of areas, seven 230 DEG C of areas, eight 230 DEG C of areas, nine 230 DEG C of areas, ten 225 DEG C of areas,
225 DEG C of head temperature, screw speed is 200r/min.
Example IV
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 4 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the example IV of table 4
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 4
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 225 DEG C of areas, five 230 DEG C of areas, six 235 DEG C of areas, seven 245 DEG C of areas, eight 245 DEG C of areas, nine 245 DEG C of areas, ten 235 DEG C of areas,
235 DEG C of head temperature, screw speed is 200r/min.
Embodiment five
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 5 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment five of table 5
| Component | Weight portion |
| Nylon 6 | 65 parts (dry weight) |
| Antioxidant (the double tetradecane esters of 3,3- thio-2 acids) | 0.6 part |
| Lubricant (pentaerythritol stearate) | 0.7 part |
| Crystallization nucleating agent (montmorillonite) | 0.5 part |
| Semi-aromatic nylon fiber (nylon 6T/6I fibers) | 35 parts (15 μm of diameter) |
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 5
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 225 DEG C of areas, five 230 DEG C of areas, six 230 DEG C of areas, seven 235 DEG C of areas, eight 235 DEG C of areas, nine 235 DEG C of areas, ten 230 DEG C of areas,
230 DEG C of head temperature, screw speed is 200r/min.
Embodiment six
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 6 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment six of table 6
| Component | Weight portion |
| Nylon 6 | 80 parts (dry weight) |
| Antioxidant | 0.7 part |
| Lubricant (GT-11) | 1.0 parts |
| Crystallization nucleating agent (nano titanium oxide) | 0.6 part |
| Semi-aromatic nylon fiber | 20 parts (20 μm of diameter) |
In table 6, antioxidant is that three (2,4- di-tert-butyl-phenyl) phosphite esters and thio-2 acid 2 stearyl ester (belong to sulphur
For esters antioxidant) mixture, the weight ratio of the two be 1:1.
Semi-aromatic nylon fiber is the mixture of nylon 6T/66 fibers and nylon 6T/10T fibers, and the weight ratio of the two is
1:1.The diameter of nylon 6T/66 fibers and nylon 6T/10T fibers is 20 μm.
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 6
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 225 DEG C of areas, six 225 DEG C of areas, seven 235 DEG C of areas, eight 235 DEG C of areas, nine 235 DEG C of areas, ten 230 DEG C of areas,
230 DEG C of head temperature, screw speed is 200r/min.
Embodiment seven
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 7 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment seven of table 7
In table 7, lubricant is the mixture of GT-11 and RH-313, and the weight ratio of the two is 1:1.
Semi-aromatic nylon fiber is the mixture of nylon 4T fibers, nylon 5T fibers and nylon 6T/6I/66 fibers, three's
Weight ratio is 1:1:1.The diameter of nylon 4T fibers, nylon 5T fibers and nylon 6T/6I/66 fibers is 8 μm.
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 7
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 225 DEG C of areas, six 225 DEG C of areas, seven 235 DEG C of areas, eight 235 DEG C of areas, nine 235 DEG C of areas, ten 230 DEG C of areas,
230 DEG C of head temperature, screw speed is 200r/min.
Embodiment eight
The content of each component of the semi-aromatic nylon fiber reinforced nylon composite material of the present embodiment is as shown in table 8 below.
The constituent content table of the semi-aromatic nylon fiber reinforced nylon composite material of the embodiment eight of table 8
In table 8, crystallization nucleating agent is the mixture of P22 and nano imvite, and the weight ratio of the two is 1:1.
Semi-aromatic nylon fiber is the mixture of nylon 6T/6I/6 fibers, nylon 6T/610 fibers and nylon 6T/6I fibers, three
The weight ratio of person is 1:1:1.The diameter of nylon 6T/6I/6 fibers, nylon 6T/610 fibers and nylon 6T/6I fibers is
18μm。
The preparation method of the semi-aromatic nylon fiber reinforced nylon composite material in the present embodiment comprises the following steps：
(1) nylon 6, is dried into 12h in 100 DEG C of drier, dry nylon 6 is obtained；
(2) dry nylon 6, antioxidant, lubricant and crystallization nucleating agent, are weighed at a high speed according to the weight portion shown in table 8
Dry-mixed 10min, obtains premix in mixer；
(3), premix is added from the main spout of double screw extruder, by semi-aromatic nylon fiber from double screw extruder
Side spout is added, and through melting extrusion, check rod and granulation, obtains semi-aromatic nylon fiber reinforced nylon composite material.
Wherein, in step (3), the processing temperature of double screw extruder is：One 190 DEG C of area, two 200 DEG C of areas, three 205 DEG C of areas,
Four 220 DEG C of areas, five 230 DEG C of areas, six 230 DEG C of areas, seven 240 DEG C of areas, eight 240 DEG C of areas, nine 240 DEG C of areas, ten 235 DEG C of areas,
235 DEG C of head temperature, screw speed is 200r/min.
Embodiment one to the semi-aromatic nylon fiber reinforced nylon composite material of embodiment eight the performance test results such as institute of table 9
Show.
The performance test results table of the semi-aromatic nylon fiber reinforced nylon composite material of each embodiment of table 9
As shown in Table 9, the properties of the semi-aromatic nylon fiber reinforced nylon composite material of the various embodiments described above are superior to pure
Nylon 6, illustrates that semi-aromatic nylon fiber reinforced nylon composite material of the invention has more preferable mechanical performance and heat resistance,
It is a kind of composite of high comprehensive performance.
Inventor also found by research：The performance of semi-aromatic nylon fiber reinforced nylon composite material is with fiber content and fiber
Diameter has compared with Important Relations.Under conditions of identical fibre species, fiber content is higher, and product mechanical property is better；Identical fibre
Under conditions of species and identical fibre content, fibre diameter is smaller, and product mechanical property is better.Vice versa.
The above-mentioned description to embodiment is to be understood that and use the present invention for ease of those skilled in the art.It is familiar with
The personnel of art technology obviously can easily make various modifications to these embodiments, and should General Principle described herein
Use in other embodiment without by performing creative labour.Therefore, the invention is not restricted to above-described embodiment, art technology
Personnel's announcement of the invention, does not depart from improvement that scope made and modification all should be in protection scope of the present invention
Within.
Claims (10)
1. a kind of semi-aromatic nylon fiber reinforced nylon composite material, it is characterised in that：Have containing following components and each component
Following weight portion：
2. semi-aromatic nylon fiber reinforced nylon composite material according to claim 1, it is characterised in that：The semiaromatic
Race's nylon fiber is continuous fiber of the fusing point more than 310 DEG C；
Preferably, a diameter of 8-20 μm of the semi-aromatic nylon fiber；And/or,
The semi-aromatic nylon fiber be selected from nylon 4T fibers, nylon 5T fibers, nylon 6T fibers, nylon 6T/66 fibers,
Nylon 6T/6 fibers, nylon 6T/6I fibers, nylon 6T/6I/66 fibers, nylon 6T/6I/6 fibers, nylon 6T/610 fibers,
Any one or a few in nylon 6T/10T fibers, nylon 9 T fibers and nylon 10T fibers.
3. semi-aromatic nylon fiber reinforced nylon composite material according to claim 1, it is characterised in that：The antioxidant
It is phosphite kind antioxidant, Hinered phenols antioxidant or monothioester kind antioxidant；
Preferably, the phosphite kind antioxidant is three (2,4- di-tert-butyl-phenyl) phosphite esters or four (2,4- di-t-butyls
Phenyl -4,4- xenyls) biphosphonate；And/or,
The Hinered phenols antioxidant is N, N'- couples-(3- (3,5- di-tert-butyl-hydroxy phenyl) propiono) hexamethylene diamine, 3- (3,5-
Di-tert-butyl-hydroxy phenyl) propionic acid n-octadecane alcohol ester or triethylene-glycol it is double [β-(3- tertiary butyl-4-hydroxy -5- aminomethyl phenyls) -
Propionic ester；And/or,
The monothioester kind antioxidant is the double tetradecane esters of 3,3- thio-2 acids, thio-2 acid 2 stearyl ester or thio dipropyl
Sour double dodecane esters.
4. semi-aromatic nylon fiber reinforced nylon composite material according to claim 1, it is characterised in that：The lubricant
Selected from any one or a few in pentaerythritol stearate, lubricant GT-11 or lubricant RH-313.
5. semi-aromatic nylon fiber reinforced nylon composite material according to claim 1, it is characterised in that：It is described to crystallize into
Core agent be selected from nano imvite, nano titanium oxide or crystallization nucleating agent P22 in any one or a few.
6. a kind of method of the semi-aromatic nylon fiber reinforced nylon composite material prepared as described in any in claim 1 to 5,
It is characterised in that it includes following steps：
(1), 50-95 parts of dry nylon 6,0.3-0.8 part antioxidant, 0.5-1.5 parts of lubricant and 0.3-0.8 parts are crystallized into
Core agent obtains premix in high-speed mixer for dry mixing；
(2), the premix is added from the main spout of double screw extruder, by 5-50 parts of dry semi-aromatic nylon fiber
Added from the side spout of the double screw extruder, through melting extrusion, check rod and granulation, obtain the increasing of semi-aromatic nylon fiber
Strong nylon composite materials.
7. method according to claim 6, it is characterised in that：In step (1), nylon 6 is dried into 11-12h at 90-110 DEG C,
Obtain the dry nylon 6；
And/or, the dry-mixed time is 5-10min.
8. method according to claim 6, it is characterised in that：In step (2), the processing temperature of the double screw extruder
Spend is 220-250 DEG C.
9. method according to claim 6, it is characterised in that：In step (2), the double screw extruder takes subregion
Temperature control, area's temperature is 190 DEG C, and two area's temperature are 200 DEG C, and three area's temperature are 205 DEG C, and four area's temperature are 220-225 DEG C,
Five area's temperature are 225-230 DEG C, and six area's temperature are 225-235 DEG C, and seven area's temperature are 230-245 DEG C, and eight area's temperature are 230-245 DEG C,
Nine area's temperature are 230-245 DEG C, and ten area's temperature are 225-235 DEG C, and head temperature is 225-230 DEG C, and screw speed is 200rpm.
10. a kind of semi-aromatic nylon fiber reinforced nylon composite material as described in any in claim 1 to 5 is making high temperature resistant
The application of part；
Preferably, the high temperature resistant component is knitted including safe automobile air bag, tire cord, sewing thread, wear-resistant fabric and filtering
Thing.
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Application publication date: 20170623 |