CN108976785A - A kind of high-strength anti-flaming heat resist modification nylon material and its preparation process - Google Patents
A kind of high-strength anti-flaming heat resist modification nylon material and its preparation process Download PDFInfo
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- CN108976785A CN108976785A CN201810829914.7A CN201810829914A CN108976785A CN 108976785 A CN108976785 A CN 108976785A CN 201810829914 A CN201810829914 A CN 201810829914A CN 108976785 A CN108976785 A CN 108976785A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/14—Polymer mixtures characterised by other features containing polymeric additives characterised by shape
- C08L2205/16—Fibres; Fibrils
Abstract
The invention discloses a kind of high-strength anti-flaming heat resist modification nylon material and its preparation processes, solve the problems, such as that nylon material anti-flammability and high temperature resistance in the prior art are poor, its key points of the technical solution are that a kind of high-strength anti-flaming heat resist modification nylon material, the raw material including following mass fraction: nylon 100-120；Palygorskite 8-14；Graphite oxide 3-5；Reinforcing filler 8-18；Phospha azine-based compounds 20-30；Lubricant 4-8；Polysiloxane coupling agent 1-2；Phosphite ester 1-2；Antioxidant 1-2.Modification of nylon in this patent has more excellent intensity, high temperature resistant and flame retardant property, can satisfy the actual use demand of current automobile, improve the safety of automobile.
Description
Technical field
The present invention relates to modification of nylon field, in particular to a kind of high-strength anti-flaming heat resist modification nylon material and its system
Standby technique.
Background technique
With the raising of living standards of the people and the fast development of automobile industry, people for car comfort, aesthetics,
The requirement of durability and safety is higher and higher, and carrying out performance boost to each components of automobile is reach this requirement necessary
Approach.It is in the majority with plastic material in each components of automobile, because plastics can satisfy the development side of automotive light weight technology
To, but general plastics have no small gap relative to traditional metal material mechanical strength and heat-resistant fireproof performance,
Therefore, the mechanical performance and heat-resistant fireproof for how improving plastic material are an important development sides of present automotive plastic
To.
In the Chinese invention patent that Authorization Notice No. is CN103834164A, a kind of automotive plastic parts nanometer is disclosed
Material modification nylon 66 material, the material are made of the raw material of parts by weight once: nylon66 fiber 100,6 12-15 of nylon, acetyl lemon
Lemon acid tributyl 4-8, polyethylene glycol 3-4, nano-titanium dioxide 10-12, titanate coupling agent TMC-TTS 1-2, epoxidation are sweet
The sour tributyl 4-8 of oil three, polyethylene glycol 3-4, the deceitful silicone oil 0.5-1 of dimethyl, nano brick ground-slag 10-12, auxiliary agent 12-15.Through changing
Property after nylon material compared to common nylon material, there is better processing performance and mechanical performance.
However, the fast development of new-energy automobile, new-energy automobile is more easily on fire after being hit instantly, because
And the requirement for flame retardant of plastic performance is further promoted, thus the modified nylon materials in above-mentioned patent are difficult to be suitable in fact
Border demand.
Summary of the invention
The first purpose of the invention is to provide a kind of high-strength anti-flaming heat resist modification nylon materials, it is advantageous that,
The modified nylon materials have high-intensitive, high temperature resistant and fire-retardant excellent properties, and the actual use that can satisfy current automobile needs
It asks, improves the safety of automobile.
Above-mentioned technical purpose of the invention has the technical scheme that
A kind of high-strength anti-flaming heat resist modification nylon material, the raw material including following mass fraction:
By using above-mentioned technical proposal, palygorskite has good colloidal property, can preferably mix with nylon, shows
The mechanical strength for improving nylon is write, simultaneously because palygorskite itself has good high temperature resistant and flame retardant property, thus makes Buddhist nun
Dragon is provided with high temperature resistant and fire-retardant performance.
Graphite oxide is after mechanical stirring and ultrasonication, and graphite oxide removing is at single layer or few layer graphite oxide
Alkene, graphene oxide have carried out surface and have been modified, carried out functional group to graphene oxide and connect under the action of polysiloxane coupling agent
Branch is modified, it will be apparent that and the Van der Waals force between graphene oxide layer is reduced, graphene oxide has both been prevented to be layered on top of each other aggregation,
The compatibility of graphene oxide Yu other raw materials is improved again.
Surface of graphene oxide is with the groups such as carboxyl, epoxy group and hydroxyl, and band in phospha azine-based compounds structure
There are phenyl ring, N-H base and phenolic hydroxyl group.The groups such as carboxyl, epoxy group and the hydroxyl of surface of graphene oxide and phospha azines chemical combination
N-H base on object reacts.There is stronger hydrogen bond and π-π interaction between the two.Thus phospha azine-based compounds packet
The surface for overlaying on graphene oxide forms stable structure, and the stacking of graphene oxide has been further prevented to assemble.And through and changing
Property after graphene oxide and phospha azine-based compounds have better compatibility, preventing graphene oxide stacking aggregation
Aspect, phospha azine-based compounds and polysiloxane coupling agent produce mutual synergistic effect.Thus graphene oxide is stable
Exist with single layer or few layer structure.
Ring-opening reaction occurs for phospha azine-based compounds and graphene oxide, so that phospha azine-based compounds and nylon are sent out
Raw crosslinking, what graphene oxide can be stable is distributed in nylon matrix.When modification of nylon is thermally decomposed, phospha azines chemical combination
Object promotes nylon matrix to be cracked into carbon, and graphene oxide layer improves the integrality and compactness of carbon-coating, it is therefore prevented that outside air
Infiltration, to slow down the basic further decomposition of nylon.Similar to alumina, surface produces fine and close protective film, prevents
Internal further oxidation is stopped.Meanwhile graphene oxide has good heat conductivity, amount of localized heat is easy to be conducted to it
His part, thus rapid cooling, so that heat is difficult to assemble.Thus, it has been obviously improved the mechanical strength, fire-retardant of modification of nylon
Property and thermal stability.Meanwhile graphene oxide density is lower, reduces the density of modification of nylon, is conducive to modification of nylon lightweight
The realization of change.
It is mixed into reinforcing filler in nylon matrix, after mechanical mixture and ultrasonic wave mixing, is uniformly distributed in matrix
It is interior, improve the intensity of modification of nylon.Under the action of polysiloxane coupling agent, the compatibility of reinforcing filler and nylon matrix,
Keep modification of nylon performance uniform.
After lubricant is added, convenient for the further processing of modification of nylon in the follow-up process, when being granulated extrusion or demoulding
Play lubricating action.In subsequent injection molding process, no longer need to add other release agents.
Phosphite ester is a kind of efficient auxiliary heat stabilizer, in high mixed, extrusion, calendering, blown film, curtain coating, plastic-coated, leaching modeling etc.
In the process, it is effectively improved the processing heat stability of modification of nylon.Meanwhile phosphite ester is also auxiliary antioxidant, in antioxidant body
It plays an important role in system, the ability with good hydroperoxide decomposition can also make modification of nylon keep good color.
After antioxidant is added, the inoxidizability and anti-ultraviolet property of modification of nylon are improved, and can produce with phosphite ester
Raw synergistic effect, hence it is evident that promote the inoxidizability and photostability of modification of nylon.
Nylon material in compared with the prior art, the modification of nylon in this patent have more excellent intensity, high temperature resistant
And flame retardant property, it can satisfy the actual use demand of current automobile, improve the safety of automobile.
Preferably, the nylon is the mixture of one or both of nylon66 fiber or nylon 6.
It is common nylon material using nylon 6 or nylon66 fiber as the matrix of modification of nylon by using above-mentioned technical proposal
Material, convenient for the large-scale production of modified nylon materials.
Preferably, the antioxidant is Hinered phenols antioxidant.
By using above-mentioned technical proposal, Hinered phenols antioxidant is that one kind one or both sides of hydroxyl on phenyl ring take
The compound of Dai Ji.Since hydroxyl is by spatial obstacle, hydrogen atom is easy to split away off from molecule, with peroxylradicals,
Alkoxy free group, hydroxy radical etc. combine and are allowed to be deactivation, so that the chain reaction of thermo-oxidative ageing be made to terminate.
Hinered phenols antioxidant can generate synergistic effect, Hinered phenols oxidant with phosphite ester as main oxidant simultaneously
Molecule in there are active hydrogen atom, this hydrogen atom is more active than the hydrogen atom in polymer carbon, can be detached with
Macromolecular chain free radical combines, and generates hydrogen peroxide and stable Phenoxy radical.Phenoxy radical ortho-substituent number
Increase or the increase of its branch, that is, increase its steric restriction effect, can thus make it by adjacent larger volume group
Protection, improves the stability of Phenoxy radical.Further, since Phenoxy radical and phenyl ring are in together in big conjugated system, because
And it is more stable, activity is lower, cannot cause chain reaction, can only terminate again one in conjunction with another living radical
Free radical generates more stable compound, to terminate chain reaction.This stability of Phenoxy radical can prevent antioxygen
Agent consumes too fast because of direct oxidation, and also can be reduced chain transfer reaction, to improve its antioxygenic property.
Preferably, the antioxidant is the mixture of antioxidant BHT and antioxidant GM.
By using above-mentioned technical proposal, antioxidant BHT can be reacted with the propagating radical in autoxidation, be eliminated
Free radical, to interrupt chain reaction.During antioxygen, the donor that both can be used as hydrogen can also be used as free radical capture
Agent.
Antioxidant GM has good thermal stability under anaerobic or hypoxia.Macromolecular radical is by acrylic acid on GM
Group captures, and stable Phenoxy radical is then formed by the fast transfer of intramolecular hydrogen bond.Since graphene oxide layer mentions
The high integrality and compactness of carbon-coating, it is therefore prevented that the entrance of outside air.The state of anaerobic is thus in inside modification of nylon,
Anaerobic state exactly is provided for antioxidant GM, thus the thermostabilization of modification of nylon is promoted significant.
And since antioxidant BHT is different from the antioxidant activity of antioxidant GM, there is synergistic effect.High activity antioxidant can
It effectively captures oxyradical or peroxylradicals, low activity antioxidant is capable of providing hydrogen atom, make the antioxygen of high activity
Agent regeneration, makes high activity antioxidant keep permanent antioxygen efficiency.After thus antioxidant BHT and antioxidant GM are used in combination, tool
There is good synergistic effect, has achieved the effect that one-plus-one is greater than two.
Preferably, the reinforcing filler includes 4-6 parts of silica, 1-3 parts of nanocrystal cellulose, 1-5 parts
Kafra fiber, 2-4 parts of glass fibre.
By using above-mentioned technical proposal, pass through silica, nanocrystal cellulose, Kafra fiber, glass fibre
Addition, be uniformly distributed in modification of nylon, to enhance the mechanical performance of modification of nylon.
Nanocrystal cellulose itself has good elasticity, durable, and no pollution to the environment.It is also a kind of effective
Antioxidant, booster action is played for the promotion of modification of nylon antioxidant.
Kafra fiber has the advantages that density is low, intensity is high, good toughness, high temperature resistant, is easy to addition molding, and intensity is same
Etc. five times of quality steel, but density is only 1/5th of steel.Thus, the mechanical strength of modification of nylon greatly promotes,
Meanwhile the lighting for being conducive to modification of nylon is promoted.
Glass fibre has good heat resistance, corrosion resistance and mechanical strength.It is mechanical strong to be thus conducive to modification of nylon
The promotion of degree, high temperature resistant and corrosion resistance.
Silica stable chemical performance, high temperature resistance are stablized, wear-resisting.Thus be conducive to be promoted the corrosion resistant of modification of nylon
Corrosion and high temperature resistance also improve the wearability of modification of nylon.Meanwhile silica pharmaceutical industry usually as help stream
Agent, and in this patent, also plays the effect of glidant, when reducing granulation and squeezing out, stick punching and squeeze out grain and extruder it
Between frictional force so that squeeze out grain surface it is smooth.In the treatment process such as subsequent injection molding, the work of release agent can also be played
With convenient for further processing processing.
Preferably, the lubricant is magnesium stearate.
By using above-mentioned technical proposal, magnesium stearate is hydrophobic lubricant, soft, can fill and lead up particle surface
Pit is squeezed out out of extruder convenient for squeezing out particle.Meanwhile hard magnesium has good due to the special construction of its own
High temperature resistant, flame retardant property, thus high temperature resistant, the flame retardant property of modification of nylon are also improved to a certain extent.
Preferably, the silica is nanoscale superfine silica gel powder.
By using above-mentioned technical proposal, nanoscale superfine silica gel powder is the impalpable powder of silica, large specific surface area, and heap is close
It spends small, can be filled between particles, completely cut off intergranular mutually chimeric.Simultaneously as its quality is dry and astringent hard, can effectively mention
Rise the wear-resisting property of modification of nylon.
Preferably, further including 2-4 parts of glass microballoon.
By using above-mentioned technical proposal, glass microballoon has good thermal stability, is tradition due to its boring
Ten parts of filler material density, thus be conducive to the lighting of modification of nylon.Graphene oxide is lamellar, and glass is micro-
Pearl be it is spherical, there is good mobility, mold filling has excellent performance, and facilitates graphene oxide further dividing in nylon matrix
It dissipates.
Preferably, the phospha azine-based compounds are 5,10- dihydro-phospha azine -10- oxide.
By using above-mentioned technical proposal, 5,10- dihydros-phospha azine -10- oxide is can provide for graphene oxide
Enough phenyl ring, N-H base and phenolic hydroxyl group, thus be easier to combine with graphene oxide, graphene oxide is improved in nylon
The uniformity and stability dispersed in matrix.
A second object of the present invention is to provide a kind of preparation processes of high-strength anti-flaming heat resist modification nylon material.
A kind of preparation process of high-strength anti-flaming heat resist modification nylon material, comprising the following steps:
S1, each raw material is weighed in proportion, and be dried；
S2, each raw material and ethanol water are mixed, and adjusts pH value to 4-5 using hydrochloric acid, be put into high speed mixer
Revolving speed is 80-120r/min, and temperature is uniform stirring 20-30min under conditions of 30-70 DEG C；
S3, the mixture after stirring is added in ultrasonic stirrer and is added at corresponding catalyst progress ultrasonic wave
Reason, ultrasonic power 400-500W, processing time are 20-45min, and treatment temperature is 50-80 DEG C, are cooled to room after being disposed
Temperature is simultaneously dry；
S4, granulation extrusion is carried out to the mixture after ultrasonication, extrusion temperature is 260-290 DEG C.
By using above-mentioned technical proposal, by mechanical stirring and ultrasonication, graphite oxide removing becomes oxidation stone
Black alkene, and coated by phospha azine-based compounds.Meanwhile polysiloxane coupling agent generates hydroxyl by hydrolysis, nanoscale is micro-
Polycondensation reaction occurs for powder silica gel and hydroxyl, so that the modified Nano grade superfine silica gel powder containing sulfydryl is obtained, under the action of ultrasonic wave,
Modified Nano grade superfine silica gel powder is uniformly mixed with antioxidant GM, after catalyst is added, keeps the C=C on sulfydryl and antioxidant GM bis-
Key reacts, to obtain the immobilized hindered phenol antioxygen of nanoscale superfine silica gel powder.It is obstructed nanoscale superfine silica gel powder is immobilized
Not only there is hindered phenol group in phenol antioxidant, oxidation resistant element sulphur can be assisted by also having, so that modification of nylon has
More excellent oxidation resistance.
In conclusion the invention has the following advantages:
Modification of nylon in this patent has more excellent intensity, high temperature resistant and flame retardant property, can satisfy current automobile
Actual use demand improves the safety of automobile.
Detailed description of the invention
Fig. 1 is the preparation technology flow chart of high-strength anti-flaming heat resist modification nylon material.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
One, raw material and instrument source:
Raw material used in this patent is marketable material.
High speed mixer used in this patent is the DSH type double helix of Wuxi new thirty years of age of mechanical equipment Co., Ltd production
Cone-type mixer.
Ultrasonic stirrer used is the model HC-SH-2000 of Hangzhou He Chuan Supersonic Tech Corp. production
Ultrasonic high-efficiency be mixed homogenizer.
Two, the component formula of intensity flame-resistant high-temperature-resistant modified nylon materials:
A kind of high-strength anti-flaming heat resist modification nylon material, the raw material including following mass fraction:
Wherein, nylon is one or both of nylon66 fiber or nylon 6；
Antioxidant is Hinered phenols antioxidant, specially the mixture of antioxidant BHT and antioxidant GM；
Reinforcing filler includes 4-6 parts of silica, 1-3 parts of nanocrystal cellulose, 1-5 parts of Kafra fiber, 2-4 parts
Glass fibre；
Raw material further includes 2-4 parts of glass microballoon；
Lubricant is magnesium stearate；
Silica is nanoscale superfine silica gel powder；
Phospha azine-based compounds are 5,10- dihydro-phospha azine -10- oxide.
Three, the preparation process of intensity flame-resistant high-temperature-resistant modified nylon materials:
S1, each raw material is weighed in proportion, and be dried；
S2, each raw material and ethanol water are mixed, and adjusts pH value to 4-5 using hydrochloric acid, be put into high speed mixer
Revolving speed is 80-120r/min, and temperature is uniform stirring 20-30min under conditions of 30-70 DEG C；
S3, the mixture after stirring is added in ultrasonic stirrer and is added at corresponding catalyst progress ultrasonic wave
Reason, ultrasonic power 400-500W, processing time are 20-45min, and treatment temperature is 50-80 DEG C, are cooled to room after being disposed
Temperature is simultaneously dry；
S4, granulation extrusion is carried out to the mixture after ultrasonication, extrusion temperature is 260-290 DEG C.
2,6 di tert butyl 4 methyl phenol and 2- tert-butyl -6- (3- tert-butyl -2- hydroxy-5-methyl benzyl) -4- first
The mixture of base phenol acrylate.
Wherein, catalyst is the mixture of triethylene diamine, m-phenylene diamine (MPD).
High-strength anti-flaming heat resist modification nylon material is prepared according to different ratio using above-mentioned preparation process, and
The detection test of properties is carried out to high-strength anti-flaming heat resist modification nylon material.It specifically includes:
1, density measurement, according to GB/T 1463-2005 " Test methods for density and relative density of fiber reinforced plastics " to high intensity
The density of flame-resistant high-temperature-resistant modified nylon materials is tested；
2, tensile strength is tested, and is hindered according to GB/T 1447-2005 " fibre reinforced plastics Erichsen test method " high intensity
The tensile strength of combustion heat resist modification nylon material is tested；
3, bending strength is tested, and is hindered according to GB/T 1449-2005 " fibre reinforced plastics bending property test method " high intensity
The bending strength of combustion heat resist modification nylon material is tested；
4, bending modulus is tested, and is hindered according to GB/T 1449-2005 " fibre reinforced plastics bending property test method " high intensity
The bending modulus of combustion heat resist modification nylon material is tested；
5, impact strength is tested, resistance to high-strength anti-flaming according to GB/T 1843-2008 " measurement of plastics Chalpy impact performance "
The impact strength of high temperature modified nylon material is tested；
6, heat distortion temperature, according to GB/T 1634.2-2004 " measurement that plastics meet deformation temperature " to the resistance to height of high-strength anti-flaming
The heat distortion temperature of warm modified nylon materials is tested；
7, limit oxygen index, according to GB/T 8924-2005 " fibre reinforced plastics combustibility test method " to high-strength anti-flaming
The limit oxygen index of heat resist modification nylon material is tested；
8, flame retardant rating, according to " flammable UL94 grade " to the flame retardant rating of high-strength anti-flaming heat resist modification nylon material into
Row test.
Embodiment 1 to embodiment 5, comparative example 1 and comparative example 2 is the modification of nylon under different component formula, comparative example 3
The heat-resistant fireproof nylon66 fiber for being FR50 for the trade mark bought from Shanghai Ci Yu plastics Co., Ltd, comparative example 4 are from Shanghai Zhuo
The 1013B Fiber reinforced high temperature resistant nylon 6 of quiet International Trading Company Ltd's purchase.
The concrete component of high-strength anti-flaming heat resist modification nylon material is as follows with when test result.
From above-mentioned test result it is found that according in this patent preparation process and component formula be modified the system of nylon
It is standby, obtained high-strength anti-flaming heat resist modification nylon material compared with the prior art in nylon material, have it is more excellent
Intensity, high temperature resistant and flame retardant property can satisfy the actual use demand of current automobile, improve the safety of automobile.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, those skilled in the art
Member can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but as long as at this
All by the protection of Patent Law in the scope of the claims of invention.
Claims (10)
1. a kind of high-strength anti-flaming heat resist modification nylon material, which is characterized in that the raw material including following mass fraction:
2. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 1, which is characterized in that the nylon
For the mixture of one or both of nylon66 fiber or nylon 6.
3. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 1, which is characterized in that the antioxygen
Agent is Hinered phenols antioxidant.
4. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 3, which is characterized in that the antioxygen
Agent is the mixture of antioxidant BHT and antioxidant GM.
5. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 1, which is characterized in that the enhancing
Filler includes 4-6 parts of silica, 1-3 parts of nanocrystal cellulose, 1-5 parts of Kafra fiber, 2-4 parts of glass fibers
Dimension.
6. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 5, which is characterized in that the lubrication
Agent is magnesium stearate.
7. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 6, which is characterized in that the dioxy
SiClx is nanoscale superfine silica gel powder.
8. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 5, which is characterized in that further include 2-
4 parts of glass microballoon.
9. a kind of high-strength anti-flaming heat resist modification nylon material according to claim 1, which is characterized in that the phospha
Azine-based compounds are 5,10- dihydro-phospha azine -10- oxide.
10. a kind of preparation of high-strength anti-flaming heat resist modification nylon material as claimed in any of claims 1 to 9
Technique, which comprises the following steps:
S1, each raw material is weighed in proportion, and be dried；
S2, each raw material and ethanol water are mixed, and adjusts pH value to 4-5 using hydrochloric acid, be put into high speed mixer
Revolving speed is 80-120r/min, and temperature is uniform stirring 20-30min under conditions of 30-70 DEG C；
S3, the mixture after stirring is added in ultrasonic stirrer and is added at corresponding catalyst progress ultrasonic wave
Reason, ultrasonic power 400-500W, processing time are 20-45min, and treatment temperature is 50-80 DEG C, are cooled to room after being disposed
Temperature is simultaneously dry；
S4, granulation extrusion is carried out to the mixture after ultrasonication, extrusion temperature is 260-290 DEG C.
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| CN109736672A (en) * | 2018-12-29 | 2019-05-10 | 商秋(上海)新材料科技有限公司 | A kind of ultra-silent energy-saving slab bridge window |
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Application publication date: 20181211 |