CN109957236A - Activeness and quietness wearable lightweight cast nylon composite material and preparation method - Google Patents
Activeness and quietness wearable lightweight cast nylon composite material and preparation method Download PDFInfo
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- CN109957236A CN109957236A CN201910267041.XA CN201910267041A CN109957236A CN 109957236 A CN109957236 A CN 109957236A CN 201910267041 A CN201910267041 A CN 201910267041A CN 109957236 A CN109957236 A CN 109957236A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G69/00—Macromolecular compounds obtained by reactions forming a carboxylic amide link in the main chain of the macromolecule
- C08G69/02—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids
- C08G69/08—Polyamides derived from amino-carboxylic acids or from polyamines and polycarboxylic acids derived from amino-carboxylic acids
- C08G69/14—Lactams
- C08G69/16—Preparatory processes
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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
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/30—Sulfur-, selenium- or tellurium-containing compounds
- C08K2003/3009—Sulfides
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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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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Abstract
The present invention provides a kind of activeness and quietness wearable lightweight cast nylon composite material, it includes the raw material of following mass parts: 80 parts~110 parts of amide monomer, 0.1 part~3 parts of catalyst, 0.1 part~3 parts of activator, 0.1 part~10 parts of elastomer flexibilizer, 0.01 part~5 parts of thin-walled hollow reinforcing agent, 0.01 part~5 parts of lubricating and wear-resisting agent；The thin-walled hollow reinforcing agent is 0.57 g/cm of density3~0.63 g/cm3, one or more of the hollow ceramic microspheres, hollow glass micropearl and hollow glass fibre of partial size or diameter less than 95 μm combination.The present invention also provides a kind of methods for preparing the composite material, it is in amide monomer ring opening polymerisation process, addition thin-walled hollow reinforcing agent, elastomer flexibilizer, lubricating and wear-resisting agent, catalyst, activator carry out in-situ modified amide monomer to prepare activeness and quietness wearable lightweight cast nylon composite material.The shortcomings that increasing intensity but reduction toughness the method overcome previous, or increase toughness but reduce intensity, or wearability cannot be taken into account.
Description
Technical field
The present invention relates to technical field of polymer materials more particularly to a kind of activeness and quietness wearable lightweight nylon monomer-cast nylon are compound
Material and preparation method.
Background technique
Underground coal mining, drilling well take the heavy mechanical equipments such as oil, during gear drive, worm and gear cooperation etc., metal machine
Tool part bears heavy load, friction is also easy to produce spark, and containing a large amount of inflammable, explosion hazard gases in working environment, it brings greatly
Security risk.Nylon as machine components in use, load-bearing, friction will not generate spark, and can be by itself deformation and partially
It is conveyed to the purpose of buffering collision and impact, moreover it is possible to partial load caused by reducing because of installation deviation.
Monomer moulding casting nylon (MCPA) belongs to one kind of nylon, it by reaction monomers occurs under base catalysis it is negative from
Son polymerization obtains.Monomer moulding casting nylon also has the degree of polymerization high, molecular weight distribution other than the advantage with polycondensation nylon
Uniformly, crystallinity is up to 50% or more；Intensity, rub resistance abrasion, rigidity, resistant to chemical etching, insulating properties have more than polycondensation nylon
Advantage；The size of product is unrestricted as long as mold allows；Simple process and low cost.Therefore, monomer moulding casting nylon can be used as
The machine components such as gear, worm gear, pulley, bearing retainer, cam, liner, bearing shell, axle sleeve, sealing ring, sliding block bottle inlet spiral,
It is particularly suitable for manufacture injection molding and hot pressing can not molding massive article.
However, non-modified nylon monomer-cast nylon toughness under dry state, low temperature environment is poor, impact strength is low；As function
Part and load-carrying members are in use, its intensity, rub resistance abrasiveness are to be improved.Therefore monomer moulding casting nylon is enhanced, is increased
Tough, rub resistance, self-lubricating modification have important practical significance.When numerous studies carry out enhancing modified to nylon monomer-cast nylon, generally
It sacrifices toughness and improves intensity；Or it sacrifices intensity and obtains higher toughness；Or only focus on the raising of wearability, it is not concerned with intensity
And toughness.And nylon monomer-cast nylon as load-bearing, gearing part in use, to comprehensive mechanical properties such as intensity, toughness, wearabilities
There is higher requirement, if cannot take into account, the short slab in performance will greatly limit its extensive use.In addition, thin-walled hollow
Reinforcing agent and lubricating and wear-resisting agent are usually inoganic solids full particle, and it is close often to will increase composite material after addition nylon matrix
Degree, this and material quantify to run in the opposite direction by force.
Summary of the invention
By in consideration of it, the present invention it is necessory to provide a kind of activeness and quietness wearable lightweight cast nylon composite material and preparation
Method is to solve the above problems.
The technical scheme adopted by the invention is that: a kind of activeness and quietness wearable lightweight cast nylon composite material, it includes
The raw material of following mass parts: 80 parts~110 parts of amide monomer, 0.1 part~3 parts of catalyst, 0.1 part of activator~3 parts, elastomer
0.1 part~10 parts of toughener, 0.01 part~5 parts of thin-walled hollow reinforcing agent, 0.01 part~5 parts of lubricating and wear-resisting agent；The thin-walled is empty
Heart reinforcing agent is density 0.57g/cm3~0.63g/cm3, the hollow ceramic microspheres of partial size or diameter less than 95 μm, hollow glass it is micro-
The combination of one or more of pearl and hollow glass fibre.
Based on above-mentioned, described activeness and quietness wearable lightweight cast nylon composite material by the raw material group of following mass parts
At: 100 parts of amide monomer, 0.1 part~3 parts of catalyst, 0.1 part~3 parts of activator, 0.1 part~10 parts of elastomer flexibilizer, thin
0.01 part~5 parts of the hollow reinforcing agent of wall, 0.01 part~5 parts of lubricating and wear-resisting agent；The thin-walled hollow reinforcing agent is density 0.57g/
cm3~0.63g/cm3, in the hollow ceramic microspheres, hollow glass micropearl and hollow glass fibre of partial size or diameter less than 95 μm
One or more of combinations.
Based on above-mentioned, the elastomer flexibilizer is ethylene-octene copolymer (POE), ethylene propylene diene rubber (EPDM) and
The combination of one or more of polyurethane elastomer (TPU).
Based on above-mentioned, the lubricating and wear-resisting agent is one of micron order graphite, graphene oxide and molybdenum disulfide or several
The combination of kind.
Based on above-mentioned, the amide monomer is the compounding of one or both of caprolactam, lauric lactam.
Based on above-mentioned, the catalyst is one or more of sodium hydroxide, potassium hydroxide, sodium methoxide and sodium ethoxide
Combination.
Based on above-mentioned, the activator is methyl diphenylene diisocyanate (MDI), toluene di-isocyanate(TDI) (TDI) or
The combination of one or more of hexamethylene diisocyanate (HDI).
The present invention also provides a kind of methods for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
Step includes:
Mixing heats under vacuum conditions, stirs the amide monomer, the thin-walled hollow reinforcing agent, elastomer increasing
Tough dose and lubricating and wear-resisting agent progress melting mixing, obtain mixed material；
Pre-polymerization is first released from vacuum state, the weighed catalyst is added in Xiang Suoshu mixed material, and in vacuum ring
Heating, stirring carry out catalysis prepolymerization reaction under border, obtain pre-polymerization slurries；Then after releasing vacuum state, Xiang Suoshu pre-polymerization slurries
Middle addition activator is simultaneously stirred, and obtains activation pre-polymerization slurries；
The activation pre-polymerization slurries are cast to temperature by casting, standing, constant temperature, cold
But, activeness and quietness wearable lightweight cast nylon composite material is obtained after demoulding.
It is specifically included based on above-mentioned, the described method for preparing activeness and quietness wearable lightweight cast nylon composite material following
Step:
Mixing is added the amide monomer, the thin-walled hollow reinforcing agent, the elastomer into mixing vessel first and is increased
Tough dose and the lubricating and wear-resisting agent, then carry out vacuumize process, and heated under vacuum conditions, when the amide monomer
It is stirred when thawing with the revolving speed of 150rpm~250rpm；When temperature is warming up to 120 DEG C~145 DEG C keep the temperature 15min~
45min obtains mixed material；
Pre-polymerization is first released from vacuum state, the weighed catalyst is added in Xiang Suoshu mixed material, in vacuum environment
It is lower stirring and be warming up to 135 DEG C~165 DEG C carry out heat preservation 15min~45min occur catalysis prepolymerization reaction, obtain pre-polymerization slurries；
Then vacuum state is released again, and activator is added into the pre-polymerization slurries and is stirred, and obtains activation pre-polymerization slurries；
The activation pre-polymerization slurries are cast to temperature by casting, standing, constant temperature, cold
But, activeness and quietness wearable lightweight cast nylon composite material is obtained after demoulding.
It wherein, further include to the activeness and quietness in the method for preparing activeness and quietness wearable lightweight cast nylon composite material
The step of wearable lightweight cast nylon composite material carries out destressing processing and carries out dimensioned processing.
In the present invention, casting nylon ring-opening polymerization mechanism is as follows:
The formation of lactam anion: at a temperature of 130 DEG C to 140 DEG C, strongly alkaline compound attack caprolactam molecule
The nitrogen-atoms of middle amide groups, the hydrogen on substituted nitrogen atom generates lactam anion, while generating water；
The generation of amine anion: lactam anion is reacted with monomer caprolactam, makes caprolactam open loop, is generated active
Amine anion.Since the amine anion of generation plays pendulum due to without conjugation stabilization, with lactam anion
Compare, activity is higher, can quickly capture a proton in monomer caprolactam generate acylated dimer and with lactams yin
Ion regeneration.The nitrogen-atoms of cyclic amides is connect with carbonyl in acylated dimer compared with caprolactam, increases lacking for amido bond
Electro, so that cyclic amide structure is easily by lactam anion nucleophilic attack in acylated dimer, therefore, acylated dimer becomes
Polymerization is required to cause reactive species.
The growth of chain: the activity of acylated dimer is high, can the reaction was continued with lactam anion, acidylate lactams and open
Ring generates amine anion, and amine anion captures a proton on monomer caprolactam again, generates acylated tripolymer, acylated trimerization
Body generates the acylated tetramer through same process again.So circulation ultimately forms one end until monomer caprolactam is exhausted
For the polyamide high polymer that acylated lactams base, the other end are primary amine groups, the ring-opening polymerization of casting nylon is completed.
And activeness and quietness wearable lightweight cast nylon composite material disclosed by the invention is exactly in amide monomer ring-opening polymerisation
In the process, thin-walled hollow reinforcing agent, elastomer flexibilizer, lubricating and wear-resisting agent are added, it is former under the action of catalyst and activator
Position modified cast nylon, so that it is acyl that one end is inlayed or permeated into thin-walled hollow reinforcing agent, elastomer flexibilizer, lubricating and wear-resisting agent
Change lactam group, in the polyamide high polymer that the other end is primary amine groups, inseparable reticular structure is formed, to prepare
High intensity, high abrasion, low-density activeness and quietness wearable lightweight cast nylon composite material, overcome and previous increase intensity simultaneously
The shortcomings that reducing intensity while reducing toughness, or increase toughness, or wearability cannot be taken into account.Detection indicate that the enhancing increases
Tough wearable lightweight cast nylon composite material tensile strength maximum is up to 100MPa or more, notch impact strength up to 10kJ/
m2More than.In addition, the present invention is after matrix is added in thin-walled hollow reinforcing agent, elastomer flexibilizer, it is not only compound without increasing
The density of material also makes composite material lightweight.
Specific embodiment
Below by specific embodiment, technical scheme of the present invention will be described in further detail.
Embodiment 1
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 100 parts of epsilon-caprolactams, density 0.57g/cm32 parts of hollow glass micropearl that partial size is 95 μm, the ethylene-octene are total
3.5 parts of polymers, 4.5 parts of micron order graphite, 0.4 part of sodium methoxide, 0.5 part of methyl diphenylene diisocyanate.
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
Hollow glass micropearl, ethylene-octene copolymer, lubricating and wear-resisting agent micron order graphite, epsilon-caprolactams are pressed in mixing
Sequence sequentially adds reactor, vacuumizes, heat temperature raising, opens stirring after epsilon-caprolactams melt；Temperature setting is existed
125 DEG C, for speed of agitator in 180rpm, constant temperature, vacuum, stirring maintain 25min, and the moisture and volatility in removal raw material are miscellaneous
Matter obtains mixed material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after sodium methoxide is added, and be to slowly warm up to 135 DEG C, permanent
Temperature, vacuum, stirring maintain 25min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, obtain
Pre-polymerization slurries；Reaction system vacuum state is released again, and methyl diphenylene diisocyanate is added, stirs evenly rapidly, is lived
Change pre-polymerization slurries；
The activation pre-polymerization slurries are cast in 170 DEG C of mold heat by casting, are stood, constant temperature 30min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Embodiment 2
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 100 parts of lauric lactam, density 0.63g/cm3Hollow ceramic microspheres 5 part, polyurethane elastomer 2 of the partial size for 90 μm
Part, 2 parts of micron class molybdenum disulfide, 1 part of potassium hydroxide, 1 part of hexamethylene diisocyanate.
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
Mixing successively adds hollow ceramic microspheres, polyurethane elastomer, micron class molybdenum disulfide, lauric lactam in order
Enter reactor, vacuumize, heat temperature raising, opens stirring after lauric lactam melts；By temperature setting at 130 DEG C, stirring
Revolving speed maintains 30min, removes moisture and volatile impurity in raw material, mixed in 200rpm, constant temperature, vacuum, stirring
Close material；
Pre-polymerization releases the vacuum state of reaction system, vacuumizes rapidly after potassium hydroxide is added, and be to slowly warm up to 140
DEG C, constant temperature, vacuum, stirring maintain 30min, the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction are removed,
Obtain pre-polymerization slurries；Reaction system vacuum state is released, hexamethylene diisocyanate is added, stirs evenly rapidly, pre-activated
Poly- slurries；
The activation pre-polymerization slurries are cast in 165 DEG C of mold heat by casting, are stood, constant temperature 35min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Embodiment 3
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 50 parts of epsilon-caprolactams, 50 parts of lauric lactam, density 0.63g/cm3Diameter be 80 μm 1 part of hollow glass fibre,
9 parts of ethylene propylene diene rubber, 1 part of micron order graphene oxide, 1.5 parts of sodium ethoxide, 2 parts of toluene di-isocyanate(TDI)
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
It mixes acyl in hollow glass fibre, ethylene propylene diene rubber, micron order graphene oxide, epsilon-caprolactams, 12
Amine sequentially adds reactor in order, vacuumizes, heat temperature raising, opens stirring after amide monomer melts；By temperature setting
At 135 DEG C, speed of agitator maintains 35min in 220rpm, constant temperature, vacuum, stirring, removes moisture and volatility in raw material
Impurity obtains mixed material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after sodium ethoxide is added, and be to slowly warm up to 145 DEG C, permanent
Temperature, vacuum, stirring maintain 25min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, obtain
Pre-polymerization slurries；Reaction system vacuum state is released, toluene di-isocyanate(TDI) is added, stirs evenly rapidly, activates pre-polymerization slurries；
The activation pre-polymerization slurries are cast in 170 DEG C of mold heat by casting, are stood, constant temperature 40min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Embodiment 4
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 80 parts of epsilon-caprolactams, 20 parts of lauric lactam, density 0.60g/cm3Partial size is 80 μm of 4 parts of hollow glass micropearls, gathers
3.5 parts of 4 part, micron class molybdenum disulfide of urethane elastomer, 2 parts of sodium ethoxide, 1.5 parts of methyl diphenylene diisocyanate.
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
It mixes acyl in hollow glass micropearl, polyurethane elastomer, micron order graphene oxide, epsilon-caprolactams, 12
Amine sequentially adds reactor in order, vacuumizes, heat temperature raising, opens stirring after amide monomer melts；By temperature setting
At 140 DEG C, speed of agitator maintains 15min in 250rpm, constant temperature, vacuum, stirring, removes moisture and volatility in raw material
Impurity obtains mixed material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after sodium ethoxide is added, and be to slowly warm up to 160 DEG C, permanent
Temperature, vacuum, stirring maintain 25min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, obtain
Pre-polymerization slurries；Reaction system vacuum state is released, methyl diphenylene diisocyanate is added, stirs evenly rapidly, activates pre-polymerization
Slurries；
The activation pre-polymerization slurries are cast in 175 DEG C of mold heat by casting, are stood, constant temperature 40min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank carries out the machining such as vehicle, milling, mill, plane, finally obtains activeness and quietness wearable lightweight cast nylon composite material product.
Embodiment 5
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 100 parts of lauric lactam, density 0.59g/cm3Partial size be 95 μm of 3 parts of hollow ceramic microspheres, 8 parts of ethylene propylene diene rubber,
3 parts of micron order graphite, 2.5 parts of potassium hydroxide, 3 parts of toluene di-isocyanate(TDI).
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
Mixing sequentially adds hollow ceramic microspheres, ethylene propylene diene rubber, micron order graphite, lauric lactam instead in order
Device is answered, is vacuumized, heat temperature raising, opens stirring after lauric lactam melts；By temperature setting at 145 DEG C, speed of agitator
In 200rpm, constant temperature, vacuum, stirring maintain 15min, remove moisture and volatile impurity in raw material, obtain mixture
Material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after potassium hydroxide is added, and be to slowly warm up to 155 DEG C,
Constant temperature, vacuum, stirring maintain 20min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, solution
Except reaction system vacuum state, toluene di-isocyanate(TDI) is added, stirs evenly rapidly, activates pre-polymerization slurries；
The activation pre-polymerization slurries are cast in 180 DEG C of mold heat by casting, are stood, constant temperature 60min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Embodiment 6
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 100 parts of epsilon-caprolactams, density 0.63g/cm3Partial size is 85 μm of 2.5 parts of hollow glass fibres, ethylene-octene copolymers
1 part, 2.5 parts of micron order graphene oxide, 3 parts of sodium hydroxide, 2.5 parts of hexamethylene diisocyanate.
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
Hollow ceramic microspheres, ethylene-octene copolymer, micron order graphene oxide, epsilon-caprolactams monomer are pressed in mixing
Sequence sequentially adds reactor, vacuumizes, heat temperature raising, and stirring is opened after epsilon-caprolactams molten monomer；Temperature is set
It sets at 135 DEG C, speed of agitator maintains 130min in 190rpm, constant temperature, vacuum, stirring, removes the moisture in raw material and waves
Hair property impurity, obtains mixed material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after sodium hydroxide is added, and be to slowly warm up to 160 DEG C,
Constant temperature, vacuum, stirring maintain 25min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, solution
Except reaction system vacuum state, hexamethylene diisocyanate is added, stirs evenly rapidly, activates pre-polymerization slurries；
The activation pre-polymerization slurries are cast in 185 DEG C of mold heat by casting, are stood, constant temperature 65min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Embodiment 7
The present embodiment provides a kind of activeness and quietness wearable lightweight cast nylon composite materials, specifically include following mass parts
Raw material: 100 parts of epsilon-caprolactams, density 0.63g/cm3Partial size is 80 μm of 0.1 part of hollow glass micropearls, ethylene-octene copolymers
0.5 0.1 part of part, micron class molybdenum disulfide, 0.25 part of sodium hydroxide, 0.1 part of toluene di-isocyanate(TDI).
The present embodiment also provides a kind of method for preparing the activeness and quietness wearable lightweight cast nylon composite material, specifically
The following steps are included:
Mixing is by hollow glass micropearl, ethylene-octene copolymer, micron class molybdenum disulfide, epsilon-caprolactams monomer by suitable
Sequence sequentially adds reactor, vacuumizes, heat temperature raising, and stirring is opened after epsilon-caprolactams molten monomer；By temperature setting
At 140 DEG C, speed of agitator maintains 30min in 220rpm, constant temperature, vacuum, stirring, removes moisture and volatility in raw material
Impurity obtains mixed material；
Pre-polymerization releases reaction system vacuum state, vacuumizes rapidly after sodium hydroxide is added, and be to slowly warm up to 155 DEG C,
Constant temperature, vacuum, stirring maintain 30min, remove the micro-moisture carried secretly in catalyst, and sufficiently catalytic prepolymerization reaction, solution
Except reaction system vacuum state, toluene di-isocyanate(TDI) is added, stirs evenly rapidly, activates pre-polymerization slurries；
The activation pre-polymerization slurries are cast in 180 DEG C of mold heat by casting, are stood, constant temperature 65min, by mold and sample
Product take out natural cooling, and nylon monomer-cast nylon product blank is obtained after demoulding；
The product blank is put into boiling water and boils 3h by post-processing, cooled to room temperature is pulled out, according to requiring to product
Blank is machined, and activeness and quietness wearable lightweight cast nylon composite material product is finally obtained.
Experiment of machanics data
Activeness and quietness wearable lightweight cast nylon composite material obtained by Examples 1 to 7 is stretched respectively, notch punching
It hits, the results are shown in Table 1 for wearability test.The activeness and quietness wearable lightweight produced as can be seen from Table 1 by embodiment 1 to 7
The tensile strength maximum of cast nylon composite material is up to 100MPa or more, notch impact strength maximum value up to 10kJ/m2
Above, coefficient of friction maximum is up to 0.8 or more.
The Mechanics Performance Testing of composite material made from 1 Examples 1 to 7 of table
Finally it should be noted that: the above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof；To the greatest extent
The present invention is described in detail with reference to preferred embodiments for pipe, it should be understood by those ordinary skilled in the art that: still
It can modify to a specific embodiment of the invention or some technical features can be equivalently replaced；Without departing from this hair
The spirit of bright technical solution should all cover within the scope of the technical scheme claimed by the invention.
Claims (9)
1. a kind of activeness and quietness wearable lightweight cast nylon composite material, which is characterized in that it includes the raw material of following mass parts:
80 parts~110 parts of amide monomer, 0.1 part~3 parts of catalyst, 0.1 part~3 parts of activator, elastomer flexibilizer 0.1 part~10
Part, 0.01 part~5 parts of thin-walled hollow reinforcing agent, 0.01 part~5 parts of lubricating and wear-resisting agent；The thin-walled hollow reinforcing agent is density
0.57 g/cm3~0.63 g/cm3, the hollow ceramic microspheres, hollow glass micropearl and hollow glass of partial size or diameter less than 95 μm
The combination of one or more of fiber.
2. activeness and quietness wearable lightweight cast nylon composite material according to claim 1, which is characterized in that it is by following
The raw material of mass parts forms: 100 parts of amide monomer, 0.1 part~3 parts of catalyst, 0.1 part of activator~3 parts, elastomer flexibilizer
0.1 part~10 parts, 0.01 part~5 parts of thin-walled hollow reinforcing agent, 0.01 part~5 parts of lubricating and wear-resisting agent；The thin-walled hollow enhancing
Agent is 0.57 g/cm of density3~0.63 g/cm3, partial size or diameter less than 95 μm of hollow ceramic microspheres, hollow glass micropearl and
The combination of one or more of hollow glass fibre.
3. activeness and quietness wearable lightweight cast nylon composite material according to claim 1 or 2, which is characterized in that described
Elastomer flexibilizer is the combination of one or more of ethylene-octene copolymer, ethylene propylene diene rubber and polyurethane elastomer.
4. activeness and quietness wearable lightweight cast nylon composite material according to claim 3, which is characterized in that the lubrication
Anti-wear agent is the combination of one or more of micron order graphite, graphene oxide and molybdenum disulfide.
5. activeness and quietness wearable lightweight cast nylon composite material according to claim 4, which is characterized in that the amide
Monomer is the compounding of one or both of caprolactam, lauric lactam.
6. activeness and quietness wearable lightweight cast nylon composite material according to claim 5, which is characterized in that the catalysis
Agent is the combination of one or more of sodium hydroxide, potassium hydroxide, sodium methoxide and sodium ethoxide.
7. activeness and quietness wearable lightweight cast nylon composite material according to claim 6, which is characterized in that the activation
Agent is the group of one or more of methyl diphenylene diisocyanate, toluene di-isocyanate(TDI) or hexamethylene diisocyanate
It closes.
8. a kind of method for preparing the described in any item activeness and quietness wearable lightweight cast nylon composite materials of claim 1~7,
Specific steps include:
Mixing heats under vacuum conditions, stirs the amide monomer, the thin-walled hollow reinforcing agent, the elastic body toughening
Agent and the lubricating and wear-resisting agent carry out melting mixing, obtain mixed material；
Pre-polymerization is first released from vacuum state, the weighed catalyst is added in Xiang Suoshu mixed material, and under vacuum conditions
Heating, stirring carry out catalysis prepolymerization reaction, obtain pre-polymerization slurries；Then after releasing vacuum state, add in Xiang Suoshu pre-polymerization slurries
Enter activator and be stirred, obtains activation pre-polymerization slurries；
The activation pre-polymerization slurries are cast to temperature by casting, standing, constant temperature, cooling,
Activeness and quietness wearable lightweight cast nylon composite material is obtained after demoulding.
9. the method according to claim 8 for preparing activeness and quietness wearable lightweight cast nylon composite material, feature exist
In, this method specifically includes the following steps:
The amide monomer, the thin-walled hollow reinforcing agent, the elastomer flexibilizer are added in mixing into mixing vessel first
With the lubricating and wear-resisting agent, vacuumize process is then carried out, and is heated under vacuum conditions, when the amide monomer melts
When be stirred with the revolving speed of the rpm of 150 rpm~250；15 min~45 are kept the temperature when temperature is warming up to 120 DEG C~145 DEG C
Min obtains mixed material；
Pre-polymerization is first released from vacuum state, and the weighed catalyst is added in Xiang Suoshu mixed material, stirs under vacuum conditions
It mixes and is warming up to 135 DEG C~165 DEG C and carry out heat preservation 15min~45min generation catalysis prepolymerization reaction, obtain pre-polymerization slurries；Then
Vacuum state is released again, and activator is added into the pre-polymerization slurries and is stirred, and obtains activation pre-polymerization slurries；
The activation pre-polymerization slurries are cast in the mold heat that temperature is 165 DEG C~185 DEG C by casting, standing, constant temperature, cooling,
Activeness and quietness wearable lightweight cast nylon composite material is obtained after demoulding.
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| CN110818885A (en) * | 2019-11-25 | 2020-02-21 | 河南城建学院 | Polyurethane-coated hollow glass bead toughened cast nylon 6 composite material and preparation method thereof |
| CN111040150A (en) * | 2019-12-11 | 2020-04-21 | 四川大学 | Preparation method of antistatic high-wear-resistance MC nylon |
| CN111825974A (en) * | 2020-07-28 | 2020-10-27 | 中国科学院兰州化学物理研究所 | Preparation method of self-lubricating MC nylon elastic belt material |
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| CN112080139A (en) * | 2020-09-15 | 2020-12-15 | 江苏新华东尼龙有限公司 | Blank of automobile plate spring cushion block or pressing block and preparation method of finished product of blank |
| CN114921060A (en) * | 2022-04-18 | 2022-08-19 | 宁海宏德新材料科技有限公司 | Stabilizer bar connecting rod and stabilizer bar connecting rod assembly |
| CN114921060B (en) * | 2022-04-18 | 2023-11-10 | 宁海宏德新材料科技有限公司 | Stabilizer bar connecting rod and stabilizer bar connecting rod assembly |
| CN115160773A (en) * | 2022-07-08 | 2022-10-11 | 淮安市东方油尼龙有限公司 | Mixed casting nylon sleeper |
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