CN106433102A - Preparation method of anti-aging polyamide film - Google Patents
Preparation method of anti-aging polyamide film Download PDFInfo
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- CN106433102A CN106433102A CN201610790208.7A CN201610790208A CN106433102A CN 106433102 A CN106433102 A CN 106433102A CN 201610790208 A CN201610790208 A CN 201610790208A CN 106433102 A CN106433102 A CN 106433102A
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Abstract
The invention relates to a preparation method of an anti-aging polyamide film, and belongs to the technical field of the preparation of functional films. The preparation method of the anti-aging polyamide film comprises the following steps: mixing and stirring white carbon black, rutile type titanium dioxide, calcium carbonate whisker, attapulgite crystal, aedelforsite needle-like fiber and the like with aqueous sodium bicarbonate solution, performing steaming and vacuum radiation, immersing in sulphamic acid solution for heating, stirring and dispersing, taking suspended matters for ultrasonic processing, taking upper-layer suspended matters for filtering, washing and drying to prepare an enhanced anti-aging inorganic nano component, mixing the enhanced anti-aging inorganic nano component with ultraviolet light absorber, nano-silicon dioxide, halloysite nanotube and the like for stirring and drying, adding polyamide to prepare anti-aging polyamide particles, performing extrusion casting, extrusion blowing, extrusion stretching or extrusion compounding on the anti-aging polyamide particles to prepare the anti-aging polyamide film. The anti-aging polyamide film prepared by the invention has the characteristics of long service life and good mechanical property.
Description
Technical field
The present invention relates to the preparation method of a kind of anti-aging polyamide film, belong to the slim film of function for technical field.
Background technology
Polyamide is commonly called as nylon (Nylon), and it is the high polymer in macromolecular main chain repetitive containing amide group
General name, can be prepared by interior acid amide ring-opening polymerisation, it is possible to obtained by diamine and binary acid polycondensation etc., due to its excellent performance,
It is to be largely used to make one of raw materials of product such as fiber, plastics, film.Polyamide film has excellent mechanical property, its
Mechanical strength height, good toughness, coefficient of friction is little, rub resistance good, and its heat resistance, poly-edge are also fine, be widely used in packaging,
The field such as agriculture, industrial.For the polyamide films using out of doors in a large number, due to be constantly subjected to sunlight, steam, radiation,
Heat effect cold alternately, even reagent, mechanical force, make reductions of polyamide film toughness, mechanical properties decrease, transparency variation,
Service life shortens, and therefore polyamide film anti-aging is a focus of current research.
At present, the anti-aging method mainly being coated by surface of polyamide film and being blended by polyamide material body
Method is carried out, and the former has the advantages such as low cost, technique are simple, but it is undesirable to there is ageing resistace, and durability is strong, modified
Agent is easy to fall off, and it is good that the latter has ageing resistace, the effect advantage such as persistently, but modifying agent disperses irregular etc. in the material, makes
Become polyamide film processing and forming difficulty, and thin film mechanical performance declines substantially, the shortcomings such as using effect is not good.
White carbon can uv reflectance consumingly, add to and polyamide can greatly reduce ultraviolet to polyamide
Degradation, thus reach to delay the purpose of material aging, due to high fluidity and the small-size effect of white carbon, make material
Surface is more fine and close carefully clean, and coefficient of friction diminishes, in addition the high intensity of nano particle, makes the wearability of material be greatly enhanced.
Rutile type titanium white both as colouring agent, has again reinforcement, anti-aging, filling effect in rubber, plastics.?
Plastics add a small amount of rutile type titanium white, under solar radiation, sun-resistant, do not ftracture, nondiscolouring.Plastics system can be improved
The heat resistance of product, light resistance, weatherability, make the physical and chemical performance of plastic products be improved, and strengthens the mechanical strength of goods,
Increase the service life.
Calcium carbonate crystal whisker shows significantly enhancing, toughness reinforcing work for thermoplastics such as modified plastics, rubber, fibers
With the bending strength of product, dimensional stability, heat endurance, ageing resistace can also be improved；Also can promote processing characteristics and
The surface smoothness of goods.
The brilliant basic structural unit of concave convex rod is bar-shaped, needle-like, threadiness monocrystal, also known as attapulgite, attapulgite
The brilliant general ＜ of content 50% of middle rod, concave convex rod crystalline substance is about 0.5-5 μm, and wide about 0.01-0.10 μm, surface is covered with concavo-convex alternate
Groove, Mohs' hardness 2-3 level, it is heated to 700-800 DEG C, hardness ＞ 5 grades, proportion is 2.05-2.32, adds and both made in the plastic
For colouring agent, there is again reinforcement, fire-retardant, anti-aging.
Wollastonite raphioid fiber is a kind of anorthic system, thin platelike crystal, and aggregate, in radiation needle-like or threadiness, is to mould
Material, the preferable anti-aging packing material of rubber, can improve plastics, rubber anti-aging, strengthen mobility and
Improving tensile strength, impact strength, linear stretch, resistance to chemical attack, heat endurance and dimensionally stable are good.
Halloysite nanotubes is that a kind of curling under natural endowment by kaolinic lamella forms natural many walls nanotube
Shape material, has typical many walls nano tubular structure, has stronger adsorption capacity to cation, polar molecule etc..Natural
Nano tubular structure and the character being easily dispersed so that halloysite nanotubes is as the modified material of a kind of novel enhancing by polymer
Material is applied at polypropylene, polyamide, polyester, rubber etc..
Ultra-violet absorber UVP-327, the strong absorbing wavelength of energy is the ultraviolet of 270-380 nanometer, and chemical stability is good,
Volatility is minimum, with antioxidant with for significant cooperative effect, significantly improves the thermo-oxidative stability of goods.Antioxidant 1010
Also there is the antioxygenic property of brilliance to polyamide polymer, can effectively extend the useful life of goods.Light stabilizer HPT, should
Product can be used as light stabilizer, can give polyamide article excellent outdoor anti ageing property.
Content of the invention
It is an object of the invention to the deficiency overcoming prior art to exist, by decatize, vacuum microwave radiation, ultrasonic wavelength-division
The Combined Processing such as dissipating, preparing one strengthens anti-aging inorganic nano component parts, and this component has good in polyamide material
Compatibility, decentralization are preferable, can also promote the processing flowability of polyamide melt and the serviceability of polyamide film simultaneously,
Obtaining preferable anti-aging mechanical property, service life is long, can be cost-effective, and the one reducing environmental pollution advantage is anti-aging poly-
The preparation method of amide film.
The preparation method of a kind of anti-aging polyamide film of the present invention, uses following steps：
A) pressing mass fraction, by 0.4-0.6 part white carbon, 0.4-0.6 part rutile type titanium white, 0.1-0.2 part characterizes
A diameter of 0.5-3 μm of parameter, a length of 5-20 μm of organic carbonate calcium pyroborate, a length of 0.5-5 μm of 0.1-0.3 part characterization parameter, width
For 0.01-0.10 μm of concave convex rod crystalline substance, 0.1-0.3 part characterization parameter draw ratio is 14-16:The wollastonite raphioid fiber of 1,0.8-1
Part lauryl amine APEO mixes with the aqueous sodium bicarbonate that 3-5 part mass fraction is 30-40%, 150-160 DEG C of mistake
Stirring decatize reaction 0.6-1h in vapours reactor, under the conditions of 230-250 DEG C, vacuum microwave radiation 2-3h, is then dipped in
60-80 part mass fraction be 30% citric acid solution in vacuum moisture absorption process, be heated to 80-90 DEG C of ultrasonic wave dispersion after inhaling thoroughly
0.5-1.5h, is stirred for disperseing 2-3h, takes suspension；
B) mass fraction is pressed, by step A) 3-5 part suspension 10-12 part 3-5% containing mass fraction trimerization phosphorus of preparing
The deionized water of acid sodium ultrasonic wave at 80-90 DEG C processes 0.4-0.6h, takes upper strata suspension and filters through 100-120 mesh, distillation
Water washes clean, cleaning and drying, obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) 3-5 part of preparing strengthens anti-aging inorganic nano component, 0.4-0.6 part UV-
327 ultra-violet absorbers, 0.2-0.4 part 770 light stabilizer, 0.1-0.2 part nano silicon, 0.1-0.2 part characterization parameter
A diameter of 0.04-0.15 μm, the halloysite nanotubes of a length of 2-20 μm, 0.2-0.4 part DNP antioxidant and 3-5 part quality are divided
The KR-212 coupling agents mixing that number is 15-20%, under the conditions of 80-90 DEG C in mixer with 200-300 turn/speed of min stirs
Mix reaction 0.6-1h, vacuum drying under the conditions of 70-80 DEG C, add 300-400 part PA6 or the PA66 polyamide of drying,
Turn/the speed of min stirring 0.5-0.8h with 250-350, obtain a kind of anti-aging polyamides through parallel dual-screw melted kneading extrusion
Amine particle；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section at 80-90 DEG C respectively vacuum do
Dry to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut into slices with 7-5 part conventional polyamide
It is blended, prepare a kind of anti-aging polyamide film by extruding casting technique；
Or E) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, and prepares a kind of anti-aging polyamide film by extrusioning blowing process；
Or F) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, and prepares a kind of anti-aging polyamide film by unidirectional or two-way extrusion, drawing process；
Or G) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, by extruder heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, and as sandwich layer
Conventional polyamide films make a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
The preparation method of a kind of anti-aging polyamide film of the present invention, uses following steps：
A) pressing mass fraction, by 0.5 part of white carbon, 0.5 part of rutile type titanium white, 0.15 part of characterization parameter is a diameter of
1.75 μm, a length of 12.5 μm of organic carbonate calcium pyroborates, a length of 2.5 μm of 0.2 part of characterization parameter, a width of 0.5 μm of concave convex rod crystalline substance,
0.2 part of characterization parameter draw ratio is 15:The wollastonite raphioid fiber of 1,0.9 part of lauryl amine APEO and 4 parts of mass fractions
It is the aqueous sodium bicarbonate mixing of 35%, in 155 DEG C of superheated steam reactors, stir decatize reaction 0.8h, at 240 DEG C of bars
Vacuum microwave radiation 2.5h under part, is then dipped in vacuum moisture absorption process in the citric acid solution that 70 parts of mass fractions are 30%, inhales
It is heated to 85 DEG C of ultrasonic wave dispersion 1h after Tou, be stirred for disperseing 2.5h, take suspension；
B) mass fraction is pressed, by step A) 4 parts of suspensions preparing being with 11 parts of going containing mass fraction 4% sodium tripolyphosphate
Ionized water ultrasonic wave at 85 DEG C processes 0.5h, takes upper strata suspension and filters through 110 mesh, distilled water washes clean, cleaning and drying,
Obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) the anti-aging inorganic nano component of prepare 4 parts enhancings, 0.5 part of UV-327 ultraviolet
Light absorbers, 0.3 part of 770 light stabilizer, 0.15 part of nano silicon, a diameter of 0.1 μm of 0.15 part of characterization parameter, a length of
The halloysite nanotubes of 11 μm, 0.3 part of DNP antioxidant and 4 parts of mass fractions are the KR-212 coupling agent mixing of 17%, 85 DEG C of bars
With the speed stirring reaction 0.8h of 250 turns/min, vacuum drying under the conditions of 75 DEG C in mixer under part, add drying
350 parts of polyamide PA66, with the speed of 300 turns/min stirring 0.6h, obtain one through parallel dual-screw melted kneading extrusion
Anti-aging polyamide particles；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 85 DEG C respectively
To moisture content≤0.08%, by mass fraction, 4 parts of anti-aging polyamide particles and 6 parts of conventional polyamide sections are blended, logical
Cross extruder heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, with the conventional polyamides as sandwich layer
Amine film makes a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
Compared with prior art, the beneficial effects are mainly as follows：By the age resisters such as white carbon and inorganic crystalline substance
After the reinforcing materials such as palpus are by Combined Processing such as decatize, vacuum microwave radiation, ultrasonic wave dispersions, prepare one and strengthen anti-aging nothing
Machine nanometer component, then add after mixing with the modifying agent such as ultra-violet absorber, light stabilizer and antioxidant, PP-g-MAH, coupling agent
Enter in polyamide material, be then further processed into a kind of anti-aging polyamide film so that the modifications such as age resister
It is preferable that agent has good compatibility, decentralization in polyamide film, and its antiageing effect is excellent, and magnesium borate crystal whisker, carbon
The materials such as acid calcium pyroborate, concave convex rod are brilliant exist with micro-fibril state in polyamide film, the mechanics of energy reinforced polyamide film
Performance.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention will be described in detail：The anti-aging polyamide of one of the present invention
The preparation method of film, uses following steps：
A) pressing mass fraction, by 0.4-0.6 part white carbon, 0.4-0.6 part rutile type titanium white, 0.1-0.2 part characterizes
A diameter of 0.5-3 μm of parameter, a length of 5-20 μm of organic carbonate calcium pyroborate, a length of 0.5-5 μm of 0.1-0.3 part characterization parameter, width
For 0.01-0.10 μm of concave convex rod crystalline substance, 0.1-0.3 part characterization parameter draw ratio is 14-16:The wollastonite raphioid fiber of 1,0.8-1
Part lauryl amine APEO mixes with the aqueous sodium bicarbonate that 3-5 part mass fraction is 30-40%, 150-160 DEG C of mistake
Stirring decatize reaction 0.6-1h in vapours reactor, under the conditions of 230-250 DEG C, vacuum microwave radiation 2-3h, is then dipped in
60-80 part mass fraction be 30% citric acid solution in vacuum moisture absorption process, be heated to 80-90 DEG C of ultrasonic wave dispersion after inhaling thoroughly
0.5-1.5h, is stirred for disperseing 2-3h, takes suspension；
B) mass fraction is pressed, by step A) 3-5 part suspension 10-12 part 3-5% containing mass fraction trimerization phosphorus of preparing
The deionized water of acid sodium ultrasonic wave at 80-90 DEG C processes 0.4-0.6h, takes upper strata suspension and filters through 100-120 mesh, distillation
Water washes clean, cleaning and drying, obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) 3-5 part of preparing strengthens anti-aging inorganic nano component, 0.4-0.6 part UV-
327 ultra-violet absorbers, 0.2-0.4 part 770 light stabilizer, 0.1-0.2 part nano silicon, 0.1-0.2 part characterization parameter
A diameter of 0.04-0.15 μm, the halloysite nanotubes of a length of 2-20 μm, 0.2-0.4 part DNP antioxidant and 3-5 part quality are divided
The KR-212 coupling agents mixing that number is 15-20%, under the conditions of 80-90 DEG C in mixer with 200-300 turn/speed of min stirs
Mix reaction 0.6-1h, vacuum drying under the conditions of 70-80 DEG C, add 300-400 part PA6 or the PA66 polyamide of drying,
Turn/the speed of min stirring 0.5-0.8h with 250-350, obtain a kind of anti-aging polyamides through parallel dual-screw melted kneading extrusion
Amine particle；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section at 80-90 DEG C respectively vacuum do
Dry to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut into slices with 7-5 part conventional polyamide
It is blended, prepare a kind of anti-aging polyamide film by extruding casting technique；
Or E) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, and prepares a kind of anti-aging polyamide film by extrusioning blowing process；
Or F) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, and prepares a kind of anti-aging polyamide film by unidirectional or two-way extrusion, drawing process；
Or G) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section vacuum respectively at 80-90 DEG C
It is dried to moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is cut with 7-5 part conventional polyamide
Piece is blended, by extruder heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, and as sandwich layer
Conventional polyamide films make a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
Embodiment 1：The preparation method of a kind of anti-aging polyamide film, uses following steps：
A) mass fraction is pressed, by 0.4 part of white carbon, 0.4 part of rutile type titanium white, 0.1 part of characterization parameter a diameter of 0.5
μm, a length of 5 μm of organic carbonate calcium pyroborates, a length of 0.5 μm of 0.1 part of characterization parameter, a width of 0.01 μm of concave convex rod crystalline substance, 0.1 part of table
Levying parameter draw ratio is 14:The wollastonite raphioid fiber of 1,0.8 part of lauryl amine APEO and 3 parts of mass fractions are 30%
Aqueous sodium bicarbonate mixes, and stirs decatize reaction 0.6h, vacuum under the conditions of 230 DEG C in 150 DEG C of superheated steam reactors
Microwave 2h, is then dipped in vacuum moisture absorption process in the citric acid solution that 60 parts of mass fractions are 30%, is heated to after inhaling thoroughly
80 DEG C of ultrasonic wave dispersion 0.5h, are stirred for disperseing 2h, take suspension；
B) mass fraction is pressed, by step A) 3 parts of suspensions preparing being with 10 parts of going containing mass fraction 3% sodium tripolyphosphate
Ionized water ultrasonic wave at 80 DEG C processes 0.4h, takes upper strata suspension and filters through 100 mesh, distilled water washes clean, cleaning and drying,
Obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) the anti-aging inorganic nano component of prepare 3 parts enhancings, 0.4 part of UV-327 ultraviolet
Light absorbers, 0.2 part of 770 light stabilizer, 0.1 part of nano silicon, a diameter of 0.04 μm of 0.1 part of characterization parameter, a length of 2
μm halloysite nanotubes, 0.2 part of DNP antioxidant and 3 parts of mass fractions are the KR-212 coupling agent mixing of 15%, 80 DEG C of conditions
Under in mixer with the speed of 200 turns/min stirring reaction 0.6h, vacuum drying under the conditions of 70 DEG C, add drying
300 parts of polyamide PA6, with the speed stirring 0.5h of 250 turns/min, obtain a kind of anti-ageing through parallel dual-screw melted kneading extrusion
Change polyamide particles；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 80 DEG C respectively
To moisture content≤0.08%, by mass fraction, 3 parts of anti-aging polyamide particles and 7 parts of conventional polyamide sections are blended, logical
Cross extrusioning blowing process and prepare a kind of anti-aging polyamide film；
Embodiment 2：The preparation method of a kind of anti-aging polyamide film, uses following steps：
A) pressing mass fraction, by 0.5 part of white carbon, 0.5 part of rutile type titanium white, 0.15 part of characterization parameter is a diameter of
1.75 μm, a length of 12.5 μm of organic carbonate calcium pyroborates, a length of 2.5 μm of 0.2 part of characterization parameter, a width of 0.5 μm of concave convex rod crystalline substance,
0.2 part of characterization parameter draw ratio is 15:The wollastonite raphioid fiber of 1,0.9 part of lauryl amine APEO and 4 parts of mass fractions
It is the aqueous sodium bicarbonate mixing of 35%, in 155 DEG C of superheated steam reactors, stir decatize reaction 0.8h, at 240 DEG C of bars
Vacuum microwave radiation 2.5h under part, is then dipped in vacuum moisture absorption process in the citric acid solution that 70 parts of mass fractions are 30%, inhales
It is heated to 85 DEG C of ultrasonic wave dispersion 1h after Tou, be stirred for disperseing 2.5h, take suspension；
B) mass fraction is pressed, by step A) 4 parts of suspensions preparing being with 11 parts of going containing mass fraction 4% sodium tripolyphosphate
Ionized water ultrasonic wave at 85 DEG C processes 0.5h, takes upper strata suspension and filters through 110 mesh, distilled water washes clean, cleaning and drying,
Obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) the anti-aging inorganic nano component of prepare 4 parts enhancings, 0.5 part of UV-327 ultraviolet
Light absorbers, 0.3 part of 770 light stabilizer, 0.15 part of nano silicon, a diameter of 0.1 μm of 0.15 part of characterization parameter, a length of
The halloysite nanotubes of 11 μm, 0.3 part of DNP antioxidant and 4 parts of mass fractions are the KR-212 coupling agent mixing of 17%, 85 DEG C of bars
With the speed stirring reaction 0.8h of 250 turns/min, vacuum drying under the conditions of 75 DEG C in mixer under part, add drying
350 parts of polyamide PA66, with the speed of 300 turns/min stirring 0.6h, obtain one through parallel dual-screw melted kneading extrusion
Anti-aging polyamide particles；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 85 DEG C respectively
To moisture content≤0.08%, by mass fraction, 4 parts of anti-aging polyamide particles and 6 parts of conventional polyamide sections are blended, logical
Cross extruder heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, with the conventional polyamides as sandwich layer
Amine film makes a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
Embodiment 3：The preparation method of a kind of anti-aging polyamide film, uses following steps：
A) mass fraction is pressed, by 0.6 part of white carbon, 0.6 part of rutile type titanium white, a diameter of 3 μ of 0.2 part of characterization parameter
M, a length of 20 μm of organic carbonate calcium pyroborates, a length of 5 μm of 0.3 part of characterization parameter, a width of 0.10 μm of concave convex rod crystalline substance, 0.3 part of sign
Parameter draw ratio is 16:The wollastonite raphioid fiber of 1,1 part of lauryl amine APEO and 5 parts of mass fractions are the carbonic acid of 40%
Hydrogen receive the aqueous solution mixing, in 160 DEG C of superheated steam reactors stir decatize reaction 1h, vacuum microwave spoke under the conditions of 250 DEG C
Penetrate 3h, be then dipped in vacuum moisture absorption process in the citric acid solution that 80 parts of mass fractions are 30%, be heated to 90 DEG C after inhaling thoroughly and surpass
Sound wave disperses 1.5h, is stirred for disperseing 3h, takes suspension；
B) mass fraction is pressed, by step A) 5 parts of suspensions preparing being with 12 parts of going containing mass fraction 5% sodium tripolyphosphate
Ionized water ultrasonic wave at 90 DEG C processes 0.6h, takes upper strata suspension and filters through 120 mesh, distilled water washes clean, cleaning and drying,
Obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) the anti-aging inorganic nano component of prepare 5 parts enhancings, 0.6 part of UV-327 ultraviolet
Light absorbers, 0.4 part of 770 light stabilizer, 0.2 part of nano silicon, a diameter of 0.15 μm of 0.2 part of characterization parameter, a length of
The halloysite nanotubes of 20 μm, 0.4 part of DNP antioxidant and 5 parts of mass fractions are the KR-212 coupling agent mixing of 20%, 90 DEG C of bars
With the speed stirring reaction 1h of 300 turns/min, vacuum drying under the conditions of 80 DEG C in mixer under part, add drying
400 parts of polyamide PA6, with the speed stirring 0.8h of 350 turns/min, obtain a kind of anti-ageing through parallel dual-screw melted kneading extrusion
Change polyamide particles；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 90 DEG C respectively
To moisture content≤0.08%, by mass fraction, 5 parts of anti-aging polyamide particles and 5 parts of conventional polyamide sections are blended, logical
Cross extruded bidirectional drawing process and prepare a kind of anti-aging polyamide film；
Embodiment of the present invention is not limited to embodiment described above, by aforementioned disclosed number range, just
Specific embodiment is arbitrarily replaced, such that it is able to obtain numerous embodiment, this is not enumerated.
Claims (2)
1. the preparation method of an anti-aging polyamide film, it is characterised in that this preparation method uses following steps：
A) mass fraction is pressed, by 0.4-0.6 part white carbon, 0.4-0.6 part rutile type titanium white, 0.1-0.2 part characterization parameter
A diameter of 0.5-3 μm, a length of 5-20 μm of organic carbonate calcium pyroborate, a length of 0.5-5 μm of 0.1-0.3 part characterization parameter, a width of
0.01-0.10 μm of concave convex rod crystalline substance, 0.1-0.3 part characterization parameter draw ratio is 14-16:The wollastonite raphioid fiber of 1,0.8-1 part
Lauryl amine APEO mixes with the aqueous sodium bicarbonate that 3-5 part mass fraction is 30-40%, overheated at 150-160 DEG C
Stirring decatize reaction 0.6-1h in steam reaction kettle, under the conditions of 230-250 DEG C, vacuum microwave radiation 2-3h, is then dipped in 60-
80 parts of mass fractions be 30% citric acid solution in vacuum moisture absorption process, be heated to 80-90 DEG C of ultrasonic wave dispersion after inhaling thoroughly
0.5-1.5h, is stirred for disperseing 2-3h, takes suspension；
B) mass fraction is pressed, by step A) 3-5 part suspension 10-12 part 3-5% containing mass fraction sodium tripolyphosphate of preparing
Deionized water at 80-90 DEG C ultrasonic wave process 0.4-0.6h, take upper strata suspension through 100-120 mesh filter, distillation washing
Wash clean, cleaning and drying, obtain the anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) 3-5 part of preparing strengthens anti-aging inorganic nano component, and 0.4-0.6 part UV-327 is purple
Ultraviolet absorbers, 0.2-0.4 part 770 light stabilizer, 0.1-0.2 part nano silicon, 0.1-0.2 part characterization parameter is a diameter of
0.04-0.15 μm, the halloysite nanotubes of a length of 2-20 μm, 0.2-0.4 part DNP antioxidant and 3-5 part mass fraction are 15-
The KR-212 coupling agent mixing of 20%, turns/the speed of min stirring reaction with 200-300 under the conditions of 80-90 DEG C in mixer
0.6-1h, vacuum drying under the conditions of 70-80 DEG C, add 300-400 part PA6 or the PA66 polyamide of drying, with 250-
The speed stirring 0.5-0.8h of 350 turns/min, obtains a kind of anti-aging polyamide particles through parallel dual-screw melted kneading extrusion；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be dried under vacuum at 80-90 DEG C respectively
After moisture content≤0.08%, by mass fraction, anti-aging for 3-5 part polyamide particles is blended with the section of 7-5 part conventional polyamide,
Prepare a kind of anti-aging polyamide film by extruding casting technique；
Or E) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 80-90 DEG C respectively
To moisture content≤0.08%, by mass fraction, by anti-aging for 3-5 part polyamide particles with the section of 7-5 part conventional polyamide altogether
Mixed, prepare a kind of anti-aging polyamide film by extrusioning blowing process；
Or F) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 80-90 DEG C respectively
To moisture content≤0.08%, by mass fraction, by anti-aging for 3-5 part polyamide particles with the section of 7-5 part conventional polyamide altogether
Mixed, prepare a kind of anti-aging polyamide film by unidirectional or two-way extrusion, drawing process；
Or G) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be vacuum dried at 80-90 DEG C respectively
To moisture content≤0.08%, by mass fraction, by anti-aging for 3-5 part polyamide particles with the section of 7-5 part conventional polyamide altogether
Mixed, by extruder heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, normal with as sandwich layer
Rule polyamide film makes a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
2. the preparation method of an anti-aging polyamide film, it is characterised in that this preparation method uses following steps：
A) mass fraction is pressed, by 0.5 part of white carbon, 0.5 part of rutile type titanium white, a diameter of 1.75 μ of 0.15 part of characterization parameter
M, a length of 12.5 μm of organic carbonate calcium pyroborates, a length of 2.5 μm of 0.2 part of characterization parameter, a width of 0.5 μm of concave convex rod crystalline substance, 0.2 part of table
Levying parameter draw ratio is 15:The wollastonite raphioid fiber of 1,0.9 part of lauryl amine APEO and 4 parts of mass fractions are 35%
Aqueous sodium bicarbonate mixes, and stirs decatize reaction 0.8h, vacuum under the conditions of 240 DEG C in 155 DEG C of superheated steam reactors
Microwave 2.5h, is then dipped in vacuum moisture absorption process in the citric acid solution that 70 parts of mass fractions are 30%, heating after inhaling thoroughly
It to 85 DEG C of ultrasonic wave dispersion 1h, is stirred for disperseing 2.5h, takes suspension；
B) mass fraction is pressed, by step A) 11 parts of deionizations containing mass fraction 4% sodium tripolyphosphate of 4 parts of suspensions preparing
Water ultrasonic wave at 85 DEG C processes 0.5h, takes upper strata suspension and filters through 110 mesh, distilled water washes clean, and cleaning and drying obtains
The anti-aging inorganic nano component of a kind of enhancing；
C) mass fraction is pressed, by step B) the anti-aging inorganic nano component of prepare 4 parts enhancings, 0.5 part of UV-327 ultraviolet is inhaled
Receive agent, 0.3 part of 770 light stabilizer, 0.15 part of nano silicon, 0.15 part of characterization parameter a diameter of 0.1 μm, a length of 11 μm
Halloysite nanotubes, 0.3 part of DNP antioxidant and 4 parts of mass fractions are the KR-212 coupling agent mixing of 17%, under the conditions of 85 DEG C
With the speed stirring reaction 0.8h of 250 turns/min, vacuum drying under the conditions of 75 DEG C in mixer, add drying
350 parts of polyamide PA66, with the speed stirring 0.6h of 300 turns/min, obtain a kind of anti-through parallel dual-screw melted kneading extrusion
Aging polyamide particles；
D) by step C) the anti-aging polyamide particles that obtains and conventional polyamide section be dried under vacuum to contain at 85 DEG C respectively
After water rate≤0.08%, by mass fraction, 4 parts of anti-aging polyamide particles and 6 parts of conventional polyamide sections are blended, by squeezing
Go out machine heating melted after carefully stitch the certain thickness fused film of extrusion from head as cortex, thin with the conventional polyamide as sandwich layer
Film makes a kind of anti-aging polyamide film through pressure roller and chilling roll are compound.
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