CN105860424B - A kind of granular phenolaldehyde moulding compound of rule and preparation method thereof - Google Patents
A kind of granular phenolaldehyde moulding compound of rule and preparation method thereof Download PDFInfo
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- CN105860424B CN105860424B CN201610274580.2A CN201610274580A CN105860424B CN 105860424 B CN105860424 B CN 105860424B CN 201610274580 A CN201610274580 A CN 201610274580A CN 105860424 B CN105860424 B CN 105860424B
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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
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/04—Condensation polymers of aldehydes or ketones with phenols only
- C08L61/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
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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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- 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
- C08K2201/004—Additives being defined by their length
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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
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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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
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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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Abstract
The present invention relates to a kind of granular phenolaldehyde moulding compound of rule, the mass fraction of the granular phenolaldehyde moulding compound of rule is:The phr of thermoplastic linear's phenolic resin 100phr, chopped strand 0phr~150 but do not include 0phr, filler 0phr~150phr but do not include 0phr, toughener 0phr~50phr but do not include 0phr, curing agent 2phr~25phr, accelerator 0phr~5phr but do not include 0phr, the phr of processing aid 1phr~50, other auxiliary agents 0phr~15phr but do not include 0phr, pigment 0phr~6phr but do not include 0phr.The present invention has used extruder in the mixing of moulding compound, mix stage;Also use extruder in pelletization stage, be made the particle size uniformity of phenolaldehyde moulding compound, regular shape, in preparation process without crush, it is friendly without screening process, production environment.
Description
Technical field
The present invention relates to a kind of phenolaldehyde moulding compound, more particularly to a kind of granular phenolaldehyde moulding compound of rule and preparation method thereof.
Background technology
The prices of raw materials of the granular phenolaldehyde moulding compound of rule are cheap, and hardness, the power of its product are can adjust according to adding ingredient
The electrical properties such as intensity, heat resistance, anti-flammability, insulation and resistance to electric arc are learned, therefore obtain more and more extensive application.It is but traditional
Phenolaldehyde moulding compound is powdered phenolic moulding compound, existing national standard " GB/T 1404.2-2008 plastics powderies phenolaldehyde moulding compound "
Also refer to traditional phenolaldehyde moulding compound.There are the following problems for this powdered phenolic moulding compound:
(1)Its mechanical property is relatively low, it is impossible to adapts to automobile, high ferro, motorcycle, motor, machine tool component and high-end technology neck
The requirement in domain;
(2)Manual operations is more in powdered phenolic molding material manufacturing technique, is related to crushing and the process procedure such as screening or screening,
Dust from flying in production process, the environmental improvement at moulding compound production workshop is not only influenceed, more influences the health of direct labor,
Have an effect on the environment and worker's health at downstream product shaping workshop.
Secondly, though some enterprises have paid attention to the production of particle phenolaldehyde moulding compound at present, material property obtains a certain degree of
Improve, but Key technique problem not solve, as particle phenolaldehyde moulding compound production technology in still manual operations it is more, crushing
Still exist with links such as screenings, dust from flying, bad environments;The 10% of yield is powder, and the 90% of yield is irregular and chi
Very little uneven hybrid particles, plastify uneven during product molding, influence processing and forming and product properties.
The difficulty for preparing the granular phenolaldehyde moulding compound of rule mainly has at following 2 points:
(1)Thermoplastic phenolic addition curing agent is very sensitive to the preparation temperature of moulding compound, time and stress, is preparing
Curing reaction is easily produced in journey, causes moulding compound to lose plasticizing forming processing characteristics.
(2)Fibre length content in phenolaldehyde moulding compound is larger, and inorganic filler is more, the melt viscosity of multicomponent compound
High, prior art is difficult to be made without the granular particulate material of powder, structured size.
It is rarely reported both at home and abroad on granular phenolaldehyde moulding compound of rule and preparation method thereof.Application number 201110274660.5
Chinese invention patent provide the patent of invention of the processing method that fine powder material of phenolic plastic finished products recycles a kind of, it is led
Be characterised by the fine powder material of phenolic plastic finished products of the 100phr mass fractions of recycling add 6.25phr~
Phenolic resin, the 12.5phr~15phr mass fraction glass fibres of 10phr mass fractions, through mixed at high speed, screw extruder
(30 DEG C~120 DEG C)Extrusion(Extrusion temperature is 90 DEG C~110 DEG C), after twin-roll machine tabletting, be transported to steel band cooling, smash,
Screening, produce size not grade, compound in irregular shape.There is no explanation to use single screw extrusion machine still in the technology
Double single screw extrusion machines.
The Chinese invention patent of application number 201410164411.4 provide fibre reinforced injection phenolic moulding plastics and
Its preparation method, it is primarily characterized in that and mixes linear phenol-aldehyde resin, carbon fiber, hexamethylenetetramine and inorganic filler and auxiliary agent
After getting togather, then through double screw extruder(75 DEG C~100 DEG C)Extrude, be cooled to normal temperature, be crushed to a diameter of 1mm~6mm not
Regular compound.
The Chinese invention patent of application number 201410157369.3 provides polyester fiber enhancing injection molding phenolaldehyde moulding compound
And preparation method thereof, it is primarily characterized in that and coupling agent and inorganic filler is placed in ball mill or ball grinder after ball milling,
It is well mixed with hexamethylenetetramine powder and other raw materials, then puts into double screw extruder extrusion(75 DEG C~100 DEG C)Mixing,
It is kneaded, smashes that size to 1mm~6mm diameters is uneven, material in irregular shape.Without the other raw materials of explanation in the technology
Whether linear phenol-aldehyde resin is included(100phr), 1mm~10mm length polyester fiber(25phr~65phr), line style phenol in other words
The addition manner of urea formaldehyde and polyester fiber is not stated specifically.The patent of invention similar to application number 201410157369.3
Have:The Chinese invention patent of application number 201410157469.6 provides flaxen fiber enhancing injection molding phenolaldehyde moulding compound and its preparation
Method, the Chinese invention patent of application number 201410165136.8 provide cotton fiber enhancing injection molding phenolaldehyde moulding compound and its system
Preparation Method, the Chinese invention patent of application number 201410164685.3 provide nylon fiber enhancing injection molding phenolaldehyde moulding compound and
Its preparation method, these patents are characterized mainly in that kinds of fibers used is different.
Though above-mentioned mixing in moulding compound, mix stage have used extruder, the moulding compound still needs to smash, sieves process
Final technique is completed, can only be made that size is uneven, the irregular mixture of grain shape.In addition, also have using extrusion mechanism
The information of standby phenolaldehyde moulding compound particle, but the high-intensity fiber of fiber or glass fibre etc is practically free of in its material component.
The content of the invention
The present invention provides a kind of granular phenolaldehyde moulding compound of rule, does not have powder airborne dust dirty in production environment during the production
Dye produces, energy-conservation, advantage of lower cost.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of granular phenolaldehyde moulding compound of rule, the mass fraction of the granular phenolaldehyde moulding compound of rule are:Thermoplastic linear
The phr of phenolic resin 100phr, chopped strand 0phr~150 but do not include 0phr, filler 0phr~150phr but do not include
0phr, toughener 0phr~50phr but do not include 0phr, curing agent 2phr~25phr, accelerator 0phr~5phr but do not include
0phr, processing aid 1phr~50 phr, other auxiliary agents 0phr~15phr but do not include 0phr, pigment 0phr~6phr but not
Including 0phr.
Preferably, thermoplastic linear's phenolic resin be selected from linear M-cresol And Formaldehyde resin, it is linear between/paracresol first
One kind or its mixture in urea formaldehyde, high adjacent position phenolic resin, phenol-formaldehyde resin modified, wherein, phenol-formaldehyde resin modified includes poly-
Vinyl butyral phenol-formaldehyde resin modified, bisphenol A type epoxy resin phenol-formaldehyde resin modified, Effect of Organosilicon-modified Phenol-formaldehyde Resin, boron change
Property phenolic resin etc., is commercially available product.
Preferably, the chopped strand be selected from length be 0mm~20mm but do not include 0mm glass fibre, carbon fiber,
Synthetic fibers, one kind of natural fiber or its mixture, wherein, glass fibre includes alkali-free glass fibre, high-strength glass fibre
Deng, carbon fiber include low elastic modulus carbon fiber (such as T300 carbon fibers), standard elastic modulus carbon fiber (such as T700 carbon fibers,
T800 carbon fibers), Elastic Modulus carbon fiber (such as M40 carbon fibers), high elastic modulus carbon fiber (such as M50 carbon fibers), superelevation
Modulus of elasticity carbon fiber (such as M60J carbon fibers), it is fine that synthetic fibers include aramid fiber, nylon fibre, polypropylene fiber, terylene
Dimension, acrylic fiber, vinylon fibre, polyvinyl chloride fibre fiber, spandex fibre, polyethylene fibre, superhigh molecular weight polyethylene fibers etc., naturally
Fiber includes flaxen fiber, bamboo fibre, cotton fiber, silk, wool fibre etc., is commercially available product.
Preferably, the filler is selected from and receives the powdered whiting of micro-dimension, silica, titanium dioxide, three oxidations two
One kind or its mixture in aluminium, wood powder, bamboo powder, lignocellulosic, are commercially available product.
Preferably, the toughener is selected from, but not limited to, and receives the rubber particles of micro-dimension, the thermoplastic elastomehc of micro-dimension received
Property body particle, receive the thermoplastic particle of micro-dimension and one kind in organic attapulgite or its mixture, wherein, receive micro- chi
Very little rubber particles include ultra-fine fully sulfurized silicon rubber powder, Ultrafine Vulcanized Powdered Nitrile Rubber, ultra-fine form of finely divided powder, mehtod carboxylic
Base butadiene-styrene rubber, ultra-fine form of finely divided powder, mehtod XNBR, ultra-fine form of finely divided powder, mehtod ACM, ultra-fine full vulcanization powder
The natural rubber of last butadiene-styrene rubber and Freezing smashing, isoprene rubber etc., the thermoplastic elastomer (TPE) particle of micro-dimension received include
But it is not limited to receive the acrylonitrile-butadiene rubber high glue powder of micro-dimension, ethylene-vinyl acetate copolymer powder etc., receives micro- chi
Very little thermoplastic powder particle includes but is not limited to polyvinyl butyral powder, aromatic diacid ester condensed polymer powder, gathered
Styrene powder, acrylate polymer powder, polypropylene powder, LLDPE powder, styrene powder etc.,
For commercially available product.
Preferably, the curing agent is selected from hexamethylenetetramine, it is commercially available product.
Preferably, the one kind or its mixture of the accelerator in magnesia and calcium hydroxide, are commercially available product.
Preferably, the processing aid be selected from zinc stearate, butyl stearate, tristerin, fatty acid amide,
One kind in the compound esters of calcium stearate, stearic acid, molybdenum disulfide, Brazil wax, Tissuemat E, polysiloxanes etc. or it is mixed
Compound, it is commercially available product.
Preferably, other auxiliary agents are selected from the one kind received in the organic siliconresin of micro-dimension, polyvinyl alcohol, silane coupler
Or its mixture, it is commercially available product.
Preferably, the one kind of the pigment in phthalocyanine blue, red lead powder, permanent yellow, benzidine yellow and pigment scarlet powder,
For commercially available product.
A kind of preparation technology of described regular granular phenolaldehyde moulding compound, first prepares nano-micro scale powder compound, secondly,
Low temperature, high dispersive mixing are carried out using reciprocating single-screw intermixing extruder, are kneaded, extrusion prepares moulding compound melt, then adopted
With single screw extrusion machine extrusion molding material melt and it is granulated, specific step of preparation process is as follows:
(1)The constant temperature height that various powder materials are inserted to room temperature~40 DEG C is stirred in machine, and blade rotating speed is 100rpm~4000
Rpm, fully crushing, stirring, after being well mixed, sieve and nano-micro scale powder compound is made;
(2)Nano-micro scale powder compound is added to the main spout of reciprocating single-screw intermixing extruder, passed through simultaneously
The side spout feeding chopped strand of the reciprocating single-screw intermixing extruder, the temperature of machine barrel feeding section is 20 DEG C~40 DEG C,
Fluxing zone temperature is 80 DEG C~125 DEG C, and extruding zone temperature is 110 DEG C~130 DEG C, and rotating speed is 20rpm~500rpm, by reciprocal
The high draft flowing deformation of formula single-screw intermixing extruder acts synergistically with low sheraing rheology, makes the plasticizing of nano-micro scale powder compound simultaneously
With fiber dispersion mixing, mixing, extrude and phenolaldehyde moulding compound composite melt is made;
(3)The phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine, extrudes and is granulated, diameter is made
The cylindric granular phenolaldehyde moulding compound of rule of 3mm~6mm, length 1mm~10mm, barrel zone temperature are 100 DEG C~130 DEG C, extruder
Head temperature is 110 DEG C~120 DEG C, rotating speed 20rpm~300rpm.Present invention uses toughener, improves impact strength;In mould
The mixing of plastics, mix stage have used extruder;Extruder is also used in pelletization stage, the particle of phenolaldehyde moulding compound is made
Size uniform, regular shape, in preparation process without crush, it is friendly without screening process, production environment.
Preferably, the screw diameter of reciprocating single-screw intermixing extruder is 25mm~200mm, screw rod active length with
The ratio between screw diameter is 5~25.
Preferably, the screw diameter of single screw extrusion machine is 30mm~300mm, screw rod active length and screw diameter it
Than for 3~20.
The present invention innovatively employs toughener, in formative stage, toughener expanded by heating, limits phenolaldehyde moulding compound
Volume contraction caused by heat cure, so as to improve notch impact strength and molding shrinkage.
The present invention innovatively employs reciprocating single-screw intermixing extruder and phenolaldehyde moulding compound composite melt is made, both
Multi-phase components material in phenolic resin system can be achieved and obtain high dispersive, low-temperature plasticizing, high draft flowing deformation and low sheraing rheology association
With being kneaded, the impaired minimum of glass fibre length, and the purpose of moulding compound automation pelletizing can be avoided again.
The present invention innovatively employs to be melted using powerful single screw extrusion machine to above-mentioned phenolaldehyde moulding compound compound
Body density, conveying, extrusion produce the granular phenolaldehyde moulding compound of rule, overcome traditional handicraft extrusion, tabletting, crush, be sieving through
Journey, powder is eliminated, improve physical and mechanical properties, the moulding processability of phenolaldehyde moulding compound, production automation degree is high, raw
Produce environment-friendly.
Brief description of the drawings
Fig. 1 is the structural representation for the production equipment that the present invention uses;
In figure:Reciprocating single-screw intermixing extruder 1, single screw extrusion machine 2, reduction box 3, automatic gauge claim 4, frame
5, discharge mould 6.
Embodiment
Below by specific embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.Should
Work as understanding, implementation of the invention is not limited to the following examples, any formal accommodation for being done to the present invention and/or
Change falls within the scope of the present invention.
In the present invention, if not refering in particular to, all parts, percentage are unit of weight, used equipment and raw material etc.
It is commercially available or commonly used in the art.Method in following embodiments, it is the normal of this area unless otherwise instructed
Rule method.
The production equipment that following examples use is as shown in figure 1, including reciprocating single-screw intermixing extruder 1 and single screw rod
Extruder 2, reduction box 3 is respectively provided with reciprocating single-screw intermixing extruder 1 and single screw extrusion machine 2, reciprocating single screw rod is mixed
The discharging opening of refining extruder 1 is connected with the charging aperture of single screw extrusion machine 2, and the discharge outlet of single screw extrusion machine 2 is provided with out
Expect mould 6.Reciprocating single-screw intermixing extruder 1 is arranged in frame 5, the side feeding of reciprocating single-screw intermixing extruder 1
Mouth claims 4 to be connected with automatic gauge.
Embodiment 1:
A kind of preparation technology of the granular phenolaldehyde moulding compound of rule, is comprised the following steps that:
(1)Weigh phenolaldehyde moulding compound composition quality number be:Linear M-cresol And Formaldehyde resin 100phr, length 5mm
± 0.5 mm phr of alkali-free glass fibre 120, the precipitated calcium carbonate 15phr of micro-dimension, silica 1 5phr, ultra-fine complete of receiving
Sulfurized silicon rubber powder 5phr, Ultrafine Vulcanized Powdered Nitrile Rubber 5phr, the high glue of micro-dimension acrylonitrile-butadiene rubber of receiving
Powder 5phr, receive the phr of micro-dimension organic attapulgite 0.5, hexamethylenetetramine 12phr, magnesia 1phr, zinc stearate 3
Phr, the phr of molybdenum disulfide 3, the phr of polysiloxanes 3, organic siliconresin 5phr, phthalocyanine blue 0.2phr;
(2)Above-mentioned each component raw material are inserted to 25 DEG C of constant temperature height to stir in machine, blade rotating speed is 2000 rpm, abundant powder
Broken, stirring, after being well mixed, sieve and nano-micro scale powder compound is made;
(3)Above-mentioned nano-micro scale powder compound is quantitatively adding to the main spout of reciprocating single-screw intermixing extruder 1,
Alkali-free glass fibre is fed by the side spout of the reciprocating single-screw intermixing extruder 1 simultaneously, the reciprocating single screw rod is mixed
The screw diameter of refining extruder 1 is 110mm, and the ratio between screw rod active length and screw diameter are 25, the temperature of its machine barrel feeding section
For 30 DEG C, fluxing zone temperature is 115 DEG C, and extruding zone temperature is 120 DEG C, rotating speed 100rpm, is kneaded by reciprocating single screw rod
The high draft flowing deformation of extruder 1 acts synergistically with low sheraing rheology, plastifies nano-micro scale powder compound and disperses with fiber
Mixing, it is kneaded, extrudes and phenolaldehyde moulding compound composite melt is made;
(4)The phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine 2, the screw rod of the screw extruder 2
A diameter of 125mm, the ratio between screw rod active length and screw diameter are 5, and barrel zone temperature is 120 DEG C, and extruder head temperature is 110
DEG C, rotating speed 80rpm, extrude and be granulated, the columned alkali-free glass fibre of diameter 3mm, length 5mm, which is made, strengthens linear metacresol
Formaldehyde resin moulding compound.
Embodiment 2:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with the phr of high-strength glass fibre 120, other compositions
First between the cylindric high-strength glass fibre enhancing linearly of diameter 3mm, length 5mm is made with embodiment 1 in mass fraction and preparation technology
Fluosite moulding compound.
Embodiment 3:
The phr of alkali-free glass fibre 120 in embodiment 1, the matter of other compositions are replaced with the phr of T300 carbon fibers 120
Number and preparation technology are measured with embodiment 1, diameter 3mm, the columned linear metacresols of T300 fibre reinforceds of length 5mm is made
Formaldehyde resin moulding compound.
Embodiment 4:
The phr of alkali-free glass fibre 120 in embodiment 1, the matter of other compositions are replaced with the phr of T700 carbon fibers 120
Number and preparation technology are measured with embodiment 1, diameter 3mm, the columned linear metacresols of T700 fibre reinforceds of length 5mm is made
Formaldehyde resin moulding compound.
Embodiment 5:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ aramid fibers 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/aramid fiber strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 6:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ nylon fibres 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/nylon fibre strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 7:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polypropylene fibers 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/polypropylene fiber strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 8:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyester fibers 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/polyester fiber strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 9:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ acrylic fibers 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/acrylic fiber strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 10:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ vinylon fibres 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/vinylon fibre strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 11:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyvinyl chloride fibre fibers 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/polyvinyl chloride fibre fiber strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 12:
The phr of alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ spandex fibres 20phr,
It is fine that the columned alkali-free glass of diameter 3mm, length 5mm is made with embodiment 1 in the mass fraction and preparation technology of other compositions
Dimension/spandex fibre strengthens linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 13:
The alkali-free glass fibre 120 in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyethylene fibres 20phr
Diameter 3mm, the columned alkali-free glass of length 5mm is made with embodiment 1 in phr, the mass fraction and preparation technology of other compositions
Glass fiber/polyethylene fibre strengthens linear M-cresol And Formaldehyde resin mold plastics..
Embodiment 14:
With between linear/paracresol formaldehyde resin replaces linear M-cresol And Formaldehyde resin in embodiment 1, other compositions
It is linear that the columned alkali-free glass fibre enhancing of diameter 3mm, length 5mm is made with embodiment 1 in mass fraction and preparation technology
Between/paracresol formaldehyde resin moulding compound.
Embodiment 15:
The linear M-cresol And Formaldehyde resin in embodiment 1, the mass parts of other compositions are replaced with high adjacent position phenolic resin
With embodiment 1, the columned alkali-free glass fibre of diameter 3mm, length 5mm, which is made, strengthens high ortho position phenolic aldehyde tree by number and preparation technology
Fat moulding compound.
Embodiment 16:
First between replacing linear in embodiment 1 with linear M-cresol And Formaldehyde resin 50phr/ high adjacent position phenolic resins 50phr
Diameter 3mm, length 5mm is made with embodiment 1 in fluosite 100phr, the mass fraction and preparation technology of other compositions
Columned alkali-free glass fibre strengthens linear M-cresol And Formaldehyde resin/high adjacent position phenolic resin moulding compound.
Embodiment 17:
Embodiment 1 is replaced with linear M-cresol And Formaldehyde resin 50phr/ bisphenol A type epoxy resin phenol-formaldehyde resin modifieds 50phr
In linear M-cresol And Formaldehyde resin 100phr, diameter is made with embodiment 1 in the mass fractions of other compositions and preparation technology
The columned alkali-free glass fibre of 3mm, length 5mm strengthens linear M-cresol And Formaldehyde resin/bisphenol A type epoxy resin modified phenolic
Resin mold plastics.
Embodiment 18:
First between replacing linear in embodiment 1 with linear M-cresol And Formaldehyde resin 50phr/ boron modified phenolic resins 50phr
Diameter 3mm, length 5mm is made with embodiment 1 in fluosite 100phr, the mass fraction and preparation technology of other compositions
Columned alkali-free glass fibre strengthens linear M-cresol And Formaldehyde resin/boron modified phenolic resin moulding compound.
The granular phenolaldehyde moulding compound of rule can be reduced effectively artificial recruitment man-hour after prepared by the present invention, improve production
Efficiency, it is effectively improved production environment so that do not have powder dust pollution generation in production environment, reduce production equipment and take the place of production
Area and production scene take place of production area, reduce equipment investment cost, reduce power consumption, and the loss of equipment electricity rate can reduce
Or so 50KW/ hours.
Embodiment described above is a kind of preferable scheme of the present invention, not the present invention is made any formal
Limitation, there are other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (8)
- A kind of 1. granular phenolaldehyde moulding compound of rule, it is characterised in that:The mass fraction of the granular phenolaldehyde moulding compound of rule is:Heat The phr of plasticity linear phenolic resin 100phr, chopped strand 0phr~150 but do not include 0phr, filler 0phr~150phr but not Including 0phr, toughener 0phr~50phr but do not include 0phr, curing agent 2phr~25phr, accelerator 0phr~5phr but not Including 0phr, processing aid 1phr~50 phr, other auxiliary agents 0phr~15phr but do not include 0phr, pigment 0phr~6phr But do not include 0phr;The preparation method of the granular phenolaldehyde moulding compound of rule is:Nano-micro scale powder compound is first prepared, secondly, low temperature is carried out using reciprocating single-screw intermixing extruder, high dispersive is mixed Close, be kneaded, extrusion prepares moulding compound melt, then using single screw extrusion machine extrusion molding material melt and is granulated, specific to prepare Processing step is as follows:(1)The constant temperature height that various powder materials are inserted to room temperature~40 DEG C is stirred in machine, and blade rotating speed is the rpm of 100rpm~4000, Abundant crushing, stirring, after being well mixed, sieve obtained nano-micro scale powder compound;(2)Nano-micro scale powder compound is added to the main spout of reciprocating single-screw intermixing extruder, at the same it is past by this The side spout feeding chopped strand of compound single-screw intermixing extruder, the temperature of machine barrel feeding section is 20 DEG C~40 DEG C, plasticizing Duan Wendu is 80 DEG C~125 DEG C, and extruding zone temperature is 110 DEG C~130 DEG C, and rotating speed is 20rpm~500rpm, by reciprocating list The high draft flowing deformation of screw mixing extruder acts synergistically with low sheraing rheology, make nano-micro scale powder compound plastify and with fibre Tie up dispersion mixing, be kneaded, extrude and phenolaldehyde moulding compound composite melt is made;(3)The phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine, extrudes and is granulated, obtained diameter 3mm~ The cylindric granular phenolaldehyde moulding compound of rule of 6mm, length 1mm~10mm, barrel zone temperature are 100 DEG C~130 DEG C, extruder head temperature For 110 DEG C~120 DEG C, rotating speed 20rpm~300rpm.
- 2. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:Thermoplastic linear's phenolic resin One kind in linear M-cresol And Formaldehyde resin, linear paracresol formaldehyde resin, high adjacent position phenolic resin, phenol-formaldehyde resin modified Or its mixture.
- 3. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:The chopped strand is selected from length 0mm~20mm but glass fibre, carbon fiber, one kind of natural fiber or its mixture for not including 0mm.
- 4. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that the chopped strand is selected from length 0mm~20mm but the synthetic fibers for not including 0mm, the synthetic fibers include aramid fiber, nylon fibre, polypropylene fiber, washed Synthetic fibre fiber, acrylic fiber, vinylon fibre, polyvinyl chloride fibre fiber, spandex fibre, polyethylene fibre or superhigh molecular weight polyethylene fibers.
- 5. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:The filler is selected from and receives micro-dimension One kind or its mixing in powdered whiting, silica, titanium dioxide, alundum (Al2O3), wood powder, bamboo powder, lignocellulosic Thing, the toughener be selected from receive micro-dimension rubber particles, receive the thermoplastic elastomer (TPE) particle of micro-dimension, the heat of micro-dimension received One kind or its mixture in thermoplastic plastic particle and organic attapulgite.
- 6. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:The curing agent is selected from six methines Tetramine, the one kind or its mixture of the accelerator in magnesia and calcium hydroxide, the processing aid are selected from stearic acid The compound esters of zinc, butyl stearate, tristerin, fatty acid amide, calcium stearate, stearic acid, molybdenum disulfide, cohune One kind or its mixture in palmitic acid wax, Tissuemat E, polysiloxanes;Other auxiliary agents, which are selected from, receives the organic siliconresin, poly- of micro-dimension One kind or its mixture in vinyl alcohol, silane coupler;The pigment is selected from phthalocyanine blue, red lead powder, permanent yellow, benzidine yellow With one kind in pigment scarlet powder.
- 7. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:Reciprocating single-screw intermixing extruder Screw diameter be 25mm~200mm, the ratio between screw rod active length and screw diameter are 5~25.
- 8. the granular phenolaldehyde moulding compound of rule according to claim 1, it is characterised in that:The screw diameter of single screw extrusion machine For 30mm~300mm, the ratio between screw rod active length and screw diameter are 3~20.
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CN109749351A (en) * | 2017-11-03 | 2019-05-14 | 航天特种材料及工艺技术研究所 | A kind of phenol-formaldehyde resin modified, composite material and preparation method |
CN108530746A (en) * | 2018-04-08 | 2018-09-14 | 广东星联科技有限公司 | A kind of preparation method based on draft flowing deformation technology foaming polypropylene sheet |
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CN110102867B (en) * | 2019-04-23 | 2021-04-06 | 南昌航空大学 | Self-feeding stirring friction extrusion method and device and self-feeding stirring head |
CN109967860B (en) * | 2019-04-23 | 2021-03-23 | 南昌航空大学 | Stirring friction continuous extrusion device and method |
CN112226037A (en) * | 2020-10-15 | 2021-01-15 | 界首市宏达塑业有限公司 | High-strength oxidation-resistant plastic particles and preparation method thereof |
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