CN105860424A - Regular granular phenolic moulding plastic and preparation method thereof - Google Patents
Regular granular phenolic moulding plastic and preparation method thereof Download PDFInfo
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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
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- 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 invention relates to a regular granular phenolic moulding plastic. The regular granular phenolic moulding plastic comprises the following components by mass fraction: 100phr of thermoplastic and linear phenolic resin, 0-150phr (excluding 0 phr) of chopped fiber, 0-150phr (excluding 0 phr) of filler, 0-50phr (excluding 0 phr) of toughening agent, 2-25phr of curing agent, 0-5phr (excluding 0 phr) of accelerator, 1-50phr of processing aid, 0-15phr (excluding 0 phr) of other aids and 0-6phr (excluding 0 phr) of pigment. The preparation method has the characteristics that an extruder is used at the blending and mixing stages of the moulding plastic and is also adopted at the granulation stage; the prepared phenolic moulding plastic has a uniform grain size and a regular grain shape; and grinding and screening processes do not exist in the preparation process, so the production environment is friendly.
Description
Technical field
The present invention relates to a kind of phenolaldehyde moulding compound, particularly to a kind of regular granular phenolaldehyde moulding compound and preparation method thereof.
Background technology
The prices of raw materials of the granular phenolaldehyde moulding compound of rule are cheap, according to electrical properties such as hardness, mechanical strength, thermostability, anti-flammability, insulation and the resistance to electric arcs of adding ingredient its goods of adjustable, are the most increasingly widely applied.But, tradition phenolaldehyde moulding compound is powdered phenolic moulding compound, and existing national standard " GB/T 1404.2-2008 plastics powdery phenolaldehyde moulding compound " also refers to tradition 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 adapt to automobile, high ferro, motorcycle, motor, machine tool component and the use requirement in high-end technology field；
(2) in powdered phenolic moulding compound production technology, manual operations is many, relate to pulverizing and the process procedure such as screening or screening, dust from flying in production process, not only affect moulding compound and produce the environmental improvement at workshop, more affecting the healthy of direct labor, the environment and the workman that have an effect on downstream product molding workshop are healthy.
Secondly, though some enterprises have paid attention to the production of granule phenolaldehyde moulding compound at present, material property obtains a certain degree of improvement, but Key technique problem does not solve, as in the production technology of granule phenolaldehyde moulding compound, still manual operations is many, the links such as pulverizing and screening still exist, dust from flying, bad environments；The 10% of yield is powder, and the 90% of yield is irregular and that size is uneven hybrid particles, plastifies uneven, affect processing and forming and product properties during product molding.
Prepare the difficulty of regular granular phenolaldehyde moulding compound and mainly have following 2 points:
(1) thermoplastic phenolic interpolation firming agent is the most sensitive to preparation temperature, time and the stress of moulding compound, easily produces curing reaction, cause moulding compound to lose plasticizing forming processing characteristics in preparation process.
(2) the fibre length content in phenolaldehyde moulding compound is relatively big, and inorganic filler is more, and the melt viscosity of multicomponent complex is high, and prior art is difficult to prepare the particulate material granular without powder body, structured size.
Report is rarely had both at home and abroad about regular granular phenolaldehyde moulding compound and preparation method thereof.The Chinese invention patent of application number 201110274660.5 provides the patent of invention of the processing method that a kind of fine powder material of phenolic plastic finished products recycles, it is primarily characterized in that the phenolic resin adding 6.25phr～10phr mass fraction in the fine powder material of phenolic plastic finished products of the 100phr mass fraction recycled, 12.5phr～15phr mass fraction glass fibre, 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, it is transported to steel band cooling, smash, screening, obtain size, compound in irregular shape.This technology does not have explanation use single screw extrusion machine or double single screw extrusion machine.
The Chinese invention patent of application number 201410164411.4 provides fibre reinforced injection phenolic moulding plastics and preparation method thereof, it is primarily characterized in that after linear phenol-aldehyde resin, carbon fiber, hexamethylenetetramine and inorganic filler and auxiliary agent are mixed, then extrudes through double screw extruder (75 DEG C～100 DEG C), be cooled to room temperature, be crushed to the irregular compound of a diameter of 1mm～6mm.
The Chinese invention patent of application number 201410157369.3 provides polyester fiber and strengthens injection molding phenolaldehyde moulding compound and preparation method thereof, be primarily characterized in that coupling agent and inorganic filler are placed in ball mill or ball grinder ball milling uniformly after, mix homogeneously with hexamethylenetetramine powder body and other raw material, put into double screw extruder extrusion (75 DEG C～100 DEG C) mixing, mixing again, smash to the size material uneven, in irregular shape of 1mm～6mm diameter.Not illustrating in this technology whether other raw material comprises the polyester fiber (25phr～65phr) of linear phenol-aldehyde resin (100phr), 1mm～10mm length, the addition manner of linear phenol-aldehyde resin and polyester fiber is the most specifically stated in other words.The patent of invention similar to application number 201410157369.3 has: the Chinese invention patent of application number 201410157469.6 provides flaxen fiber and strengthens injection molding phenolaldehyde moulding compound and preparation method thereof, the Chinese invention patent of application number 201410165136.8 provides that cotton fiber strengthens injection molding phenolaldehyde moulding compound and preparation method thereof, the Chinese invention patent of application number 201410164685.3 provides nylon fiber and strengthens injection molding phenolaldehyde moulding compound and preparation method thereof, these patents be characterized mainly in that kinds of fibers used is different.
Though the above-mentioned mixing at moulding compound, mix stage employ extruder, but this moulding compound still needs to smash, screening operation completes final technique, can only prepare that size is uneven, the irregular mixture of grain shape.It addition, also there is the information using extrusion mechanism for phenolaldehyde moulding compound granule, but its material component is practically free of the high-intensity fiber of fiber or glass fibre etc.
Summary of the invention
The present invention provides a kind of regular granular phenolaldehyde moulding compound, does not has powder dust pollution generation, energy-conservation, advantage of lower cost during this production in production environment.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of regular granular phenolaldehyde moulding compound, the mass fraction of the granular phenolaldehyde moulding compound of described rule is: thermoplastic linear phenolic resin 100phr, chopped strand 0phr～150 phr but do not include 0phr, filler 0phr～150phr but do not include 0phr, toughener 0phr～50phr but do not include 0phr, firming 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 do not include 0phr.
As preferably, described thermoplastic linear's phenolic resin selected from linear M-cresol And Formaldehyde resin, linear between/paracresol formaldehyde resin, high adjacent position phenolic resin, one in phenol-formaldehyde resin modified or its mixture, wherein, phenol-formaldehyde resin modified includes polyvinyl butyral resin phenol-formaldehyde resin modified, bisphenol A type epoxy resin phenol-formaldehyde resin modified, Effect of Organosilicon-modified Phenol-formaldehyde Resin, boron modified phenolic resin etc., is commercially available product.
nullAs preferably，Described chopped strand is selected from a length of 0mm～20mm but does not include the glass fibre of 0mm、Carbon fiber、Synthetic fibers、The one of natural fiber or its mixture，Wherein，Glass fibre includes alkali-free glass fibre、High-strength glass fibre etc.，Carbon fiber includes low elastic modulus carbon fiber (such as T300 carbon fiber)、Standard elastic modulus carbon fiber is (such as T700 carbon fiber、T800 carbon fiber)、Elastic Modulus carbon fiber (such as M40 carbon fiber)、High elastic modulus carbon fiber (such as M50 carbon fiber)、Modulus of ultra high elasticity carbon fiber (such as M60J carbon fiber) etc.，Synthetic fibers include aramid fiber、Nylon fibre、Polypropylene fiber、Polyster fibre、Acrylic fiber、Vinylon fibre、Polyvinyl chloride fibre fiber、Spandex fibre、Polyethylene fibre、Superhigh molecular weight polyethylene fibers etc.，Natural fiber includes flaxen fiber、Bamboo fibre、Cotton fiber、Silkworm silk、Wool fibre etc.，It is commercially available product.
As preferably, described filler, selected from receiving the one in the ground calcium carbonate of micro-dimension, silicon dioxide, titanium dioxide, aluminium sesquioxide, wood powder, bamboo powder, lignocellulose or its mixture, is commercially available product.
nullAs preferably，Described toughener is selected from, but not limited to, receives the rubber particles of micro-dimension、Receive the thermoplastic elastomer (TPE) particle of micro-dimension、Receive the one in the thermoplastic particle of micro-dimension and organic attapulgite or its mixture，Wherein，The rubber particles of micro-dimension received includes ultra-fine fully sulfurized silicon rubber powder、Ultrafine Vulcanized Powdered Nitrile Rubber、Ultra-fine form of finely divided powder, mehtod carboxylic styrene-butadiene rubber、Ultra-fine form of finely divided powder, mehtod carboxy terminated nitrile rubber、Ultra-fine form of finely divided powder, mehtod acrylate rubber、Ultra-fine form of finely divided powder, mehtod butadiene-styrene rubber and the natural rubber of freezing and pulverizing、Isoprene rubber etc.，The thermoplastic elastomer (TPE) particle of micro-dimension received includes but not limited to receive the acrylonitrile-butadiene rubber high glue powder of micro-dimension、Ethylene-vinyl acetate copolymer powder etc.，The thermoplastic powder body particle of micro-dimension received includes but not limited to polyvinyl butyral powder body、Aromatic diacid ester condensed polymer powder body、Polystyrene powder body、Acrylate polymer powder body、Polypropylene powder body、Linear low density polyethylene powder body、Styrene powder body etc.，It is commercially available product.
As preferably, described firming agent is selected from hexamethylenetetramine, is commercially available product.
As preferably, described accelerator is selected from the one in magnesium oxide and calcium hydroxide or its mixture, is commercially available product.
As preferably, described processing aid is combined the one in esters, molybdenum bisuphide, Brazil wax, Tissuemat E, polysiloxanes etc. or its mixture selected from zinc stearate, butyl stearate, tristerin, fatty acid amide, calcium stearate, stearic acid, is commercially available product.
As preferably, other auxiliary agents, selected from receiving the one in the organic siliconresin of micro-dimension, polyvinyl alcohol, silane coupler or its mixture, are commercially available product.
As preferably, described pigment is selected from the one in phthalocyanine blue, red lead powder, permanent yellow, benzidine yellow and red, is commercially available product.
A kind of preparation technology of the described granular phenolaldehyde moulding compound of rule, first prepare and receive minute yardstick powder body complex, secondly, use reciprocating single-screw intermixing extruder carry out low temperature, high dispersive mixing, mixing, extrusion prepares moulding compound melt, then using single screw extrusion machine extrusion die plastic melt pelletize, concrete step of preparation process is as follows:
(1) the constant temperature height that various powder materials are inserted room temperature～40 DEG C stirs in machine, and blade rotating speed is 100rpm～4000 rpm, fully pulverize, stirring, after mix homogeneously, screening prepares receives minute yardstick powder body complex；
(2) will receive minute yardstick powder body complex add reciprocating single-screw intermixing extruder main spout, simultaneously by the side spout feeding chopped strand of this 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, extruding zone temperature is 110 DEG C～130 DEG C, rotating speed is 20rpm～500rpm, high draft flowing deformation and low sheraing rheology synergism through reciprocating single-screw intermixing extruder, make to receive the plasticizing of minute yardstick powder body complex and with fiber dispersion mixing, mixing, extrusion prepares phenolaldehyde moulding compound composite melt；
(3) this phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine, extrusion pelletize, prepare diameter 3mm～6mm, length 1mm～the granular phenolaldehyde moulding compound of the cylindric rule of 10mm, barrel zone temperature is 100 DEG C～130 DEG C, extruder head temperature is 110 DEG C～120 DEG C, rotating speed 20rpm～300rpm.Present invention uses toughener, improve impact strength；Mixing, mix stage at moulding compound employ extruder；Also using extruder at pelletization stage, prepare the particle size uniformity of phenolaldehyde moulding compound, regular shape, without pulverizing, nothing screening operation in preparation process, production environment is friendly.
As preferably, the screw diameter of reciprocating single-screw intermixing extruder is 25mm～200mm, and screw rod active length is 5～25 with the ratio of screw diameter.
As preferably, the screw diameter of single screw extrusion machine is 30mm～300mm, and screw rod active length is 3～20 with the ratio of screw diameter.
The present invention have employed toughener innovatively, at formative stage, toughener expanded by heating, limits the volume contraction that phenolaldehyde moulding compound heat cure causes, thus improves notch impact strength and molding shrinkage.
The present invention have employed reciprocating single-screw intermixing extruder innovatively and prepares phenolaldehyde moulding compound composite melt, both can realize that multi-phase components material in phenolic resin system obtains high dispersive, low-temperature plasticizing, high draft flowing deformation are worked in coordination with mixing with low sheraing rheology, the impaired minimum of glass fibre length, and the purpose of moulding compound automatization pelletizing can be avoided again.
The present invention have employed the powerful single screw extrusion machine of employing innovatively to above-mentioned phenolaldehyde moulding compound composite melt density, conveying, extrusion produces the phenolaldehyde moulding compound that rule is granular, overcome traditional handicraft extrusion, tabletting, broken, screening process, eliminate powder, improve the physical and mechanical properties of phenolaldehyde moulding compound, moulding processability, production automation degree is high, and production environment is friendly.
Accompanying drawing explanation
Fig. 1 is the structural representation producing equipment that the present invention uses；
In figure: reciprocating single-screw intermixing extruder 1, single screw extrusion machine 2, reduction box 3, automatic gauge claims 4, frame 5, discharging mould 6.
Detailed description of the invention
Below by specific embodiment, and combine accompanying drawing, technical scheme is described in further detail.Should be appreciated that the enforcement of the present invention is not limited to the following examples, any pro forma accommodation and/or the change of being made the present invention fall within scope.
In the present invention, if not refering in particular to, all of part, percentage ratio are unit of weight, and the equipment used and raw material etc. are all commercially available or commonly used in the art.Method in following embodiment, if no special instructions, is the conventional method of this area.
The production equipment that following example use is as shown in Figure 1, including reciprocating single-screw intermixing extruder 1 and single screw extrusion machine 2, it is respectively provided with reduction box 3 on reciprocating single-screw intermixing extruder 1 and single screw extrusion machine 2, the discharging opening of reciprocating single-screw intermixing 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 discharging mould 6.Reciprocating single-screw intermixing extruder 1 is arranged in frame 5, and the side spout of reciprocating single-screw intermixing extruder 1 claims 4 to be connected with automatic gauge.
Embodiment 1:
The preparation technology of the granular phenolaldehyde moulding compound of a kind of rule, specifically comprises the following steps that
(1) the composition quality number weighing phenolaldehyde moulding compound is: linear M-cresol And Formaldehyde resin 100phr, alkali-free glass fibre 120 phr of length 5mm ± 0.5 mm, receive the precipitated calcium carbonate 15phr of micro-dimension, silica 1 5phr, ultra-fine fully sulfurized silicon rubber powder 5phr, Ultrafine Vulcanized Powdered Nitrile Rubber 5phr, receive micro-dimension acrylonitrile-butadiene rubber high glue powder 5phr, receive micro-dimension organic attapulgite 0.5 phr, hexamethylenetetramine 12phr, magnesium oxide 1phr, zinc stearate 3 phr, molybdenum bisuphide 3 phr, polysiloxanes 3 phr, organic siliconresin 5phr, phthalocyanine blue 0.2phr；
(2) the constant temperature height that above-mentioned each component raw material is inserted 25 DEG C stirs in machine, and blade rotating speed is 2000 rpm, after fully pulverizing, stirring, mix homogeneously, and the prepared minute yardstick powder body complex of receiving of screening；
(3) above-mentioned minute yardstick powder body complex of receiving is quantitatively adding the main spout of reciprocating single-screw intermixing extruder 1, simultaneously by the side spout feeding alkali-free glass fibre of this reciprocating single-screw intermixing extruder 1, the screw diameter of this reciprocating single-screw intermixing extruder 1 is 110mm, screw rod active length is 25 with the ratio of screw diameter, the temperature of its machine barrel feeding section is 30 DEG C, fluxing zone temperature is 115 DEG C, extruding zone temperature is 120 DEG C, rotating speed is 100rpm, high draft flowing deformation and low sheraing rheology synergism through reciprocating single-screw intermixing extruder 1, make to receive the plasticizing of minute yardstick powder body complex and with fiber dispersion mixing, mixing, extrusion prepares phenolaldehyde moulding compound composite melt；
(4) this phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine 2, the screw diameter of this screw extruder 2 is 125mm, screw rod active length is 5 with the ratio of screw diameter, barrel zone temperature is 120 DEG C, extruder head temperature is 110 DEG C, rotating speed 80rpm, extrusion pelletize, prepare diameter 3mm, the length 5mm columned alkali-free glass fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 2:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with high-strength glass fibre 120 phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the length 5mm cylindric high-strength glass fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 3:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with T300 carbon fiber 120 phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, length 5mm columned T300 fibre reinforced linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 4:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with T700 carbon fiber 120 phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, length 5mm columned T700 fibre reinforced linear M-cresol And Formaldehyde resin mold plastics.
Embodiment 5:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ aramid fiber 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/aramid fiber linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 6:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ nylon fibre 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/nylon fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 7:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polypropylene fiber 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/polypropylene fiber linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 8:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyster fibre 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/polyster fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 9:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ acrylic fiber 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/acrylic fiber linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 10:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ vinylon fibre 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/vinylon fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 11:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyvinyl chloride fibre fiber 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/polyvinyl chloride fibre fiber linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 12:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ spandex fibre 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/spandex fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing.
Embodiment 13:
Alkali-free glass fibre 120 phr in embodiment 1 is replaced with alkali-free glass fibre 100phr/ polyethylene fibre 20phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm/polyethylene fibre linear M-cresol And Formaldehyde resin mold plastics of enhancing..
Embodiment 14:
With between linear/paracresol formaldehyde resin replaces the linear M-cresol And Formaldehyde resin in embodiment 1, the mass fraction of other compositions and preparation technology with embodiment 1, prepare diameter 3mm, the columned alkali-free glass fibre of length 5mm strengthen linear between/paracresol formaldehyde resin moulding compound.
Embodiment 15:
Replacing the linear M-cresol And Formaldehyde resin in embodiment 1 with high adjacent position phenolic resin, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, length 5mm columned alkali-free glass fibre enhancing high adjacent position phenolic resin moulding compound.
Embodiment 16:
The linear M-cresol And Formaldehyde resin 100phr in embodiment 1 is replaced with linear M-cresol And Formaldehyde resin 50phr/ high adjacent position phenolic resin 50phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the length 5mm columned alkali-free glass fibre linear M-cresol And Formaldehyde resin/high adjacent position phenolic resin moulding compound of enhancing.
Embodiment 17:
The linear M-cresol And Formaldehyde resin 100phr in embodiment 1 is replaced with linear M-cresol And Formaldehyde resin 50phr/ bisphenol A type epoxy resin phenol-formaldehyde resin modified 50phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the length 5mm columned alkali-free glass fibre linear M-cresol And Formaldehyde resin/bisphenol A type epoxy resin modified alkyd resin moulding material of enhancing.
Embodiment 18:
The linear M-cresol And Formaldehyde resin 100phr in embodiment 1 is replaced with linear M-cresol And Formaldehyde resin 50phr/ boron modified phenolic resin 50phr, the mass fraction of other compositions and preparation technology, with embodiment 1, prepare diameter 3mm, the length 5mm columned alkali-free glass fibre linear M-cresol And Formaldehyde resin/boron modified phenolic resin moulding compound of enhancing.
The granular phenolaldehyde moulding compound of rule is after prepared by the present invention, can effectively reduce artificial recruitment man-hour, improve production efficiency, it is effectively improved production environment, make production environment does not has powder dust pollution produce, reduce production hold facility place of production area and production scene takies place of production area, reduce equipment investment cost, reducing power consumption, the loss of equipment electricity rate can reduce about 50KW/ hour.
Embodiment described above is the one preferably scheme of the present invention, and the present invention not makees any pro forma restriction, also has other variant and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (8)
1. the granular phenolaldehyde moulding compound of rule, it is characterized in that: the mass fraction of the granular phenolaldehyde moulding compound of described rule is: thermoplastic linear phenolic resin 100phr, chopped strand 0phr～150 phr but do not include 0phr, filler 0phr～150phr but do not include 0phr, toughener 0phr～50phr but do not include 0phr, firming 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 do not include 0phr.
The granular phenolaldehyde moulding compound of rule the most according to claim 1, it is characterised in that: described thermoplastic linear's phenolic resin selected from linear M-cresol And Formaldehyde resin, linear between/paracresol formaldehyde resin, high adjacent position phenolic resin, one in phenol-formaldehyde resin modified or its mixture.
The granular phenolaldehyde moulding compound of rule the most according to claim 1, it is characterised in that: described chopped strand is selected from a length of 0mm～20mm but does not include the glass fibre of 0mm, carbon fiber, synthetic fibers, the one of natural fiber or its mixture.
The granular phenolaldehyde moulding compound of rule the most according to claim 1, it is characterized in that: described filler selected from receiving the one in the ground calcium carbonate of micro-dimension, silicon dioxide, titanium dioxide, aluminium sesquioxide, wood powder, bamboo powder, lignocellulose or its mixture, described toughener selected from receive micro-dimension rubber particles, receive the thermoplastic elastomer (TPE) particle of micro-dimension, the one received in the thermoplastic particle of micro-dimension and organic attapulgite or its mixture.
The granular phenolaldehyde moulding compound of rule the most according to claim 1, it is characterized in that: described firming agent is selected from hexamethylenetetramine, described accelerator is selected from the one in magnesium oxide and calcium hydroxide or its mixture, and described processing aid is combined the one in esters, molybdenum bisuphide, Brazil wax, Tissuemat E, polysiloxanes etc. or its mixture selected from zinc stearate, butyl stearate, tristerin, fatty acid amide, calcium stearate, stearic acid；Other auxiliary agents are selected from receiving the one in the organic siliconresin of micro-dimension, polyvinyl alcohol, silane coupler or its mixture；Described pigment one in phthalocyanine blue, red lead powder, permanent yellow, benzidine yellow and red.
6. the preparation method of the granular phenolaldehyde moulding compound of rule described in a claim 1, it is characterized in that: first prepare and receive minute yardstick powder body complex, secondly, use reciprocating single-screw intermixing extruder carry out low temperature, high dispersive mixing, mixing, extrusion prepares moulding compound melt, then using single screw extrusion machine extrusion die plastic melt pelletize, concrete step of preparation process is as follows:
(1) the constant temperature height that various powder materials are inserted room temperature～40 DEG C stirs in machine, and blade rotating speed is 100rpm～4000 rpm, fully pulverize, stirring, after mix homogeneously, screening prepares receives minute yardstick powder body complex；
(2) will receive minute yardstick powder body complex add reciprocating single-screw intermixing extruder main spout, simultaneously by the side spout feeding chopped strand of this 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, extruding zone temperature is 110 DEG C～130 DEG C, rotating speed is 20rpm～500rpm, high draft flowing deformation and low sheraing rheology synergism through reciprocating single-screw intermixing extruder, make to receive the plasticizing of minute yardstick powder body complex and with fiber dispersion mixing, mixing, extrusion prepares phenolaldehyde moulding compound composite melt；
(3) this phenolaldehyde moulding compound composite melt is fed directly into single screw extrusion machine, extrusion pelletize, prepare diameter 3mm～6mm, length 1mm～the granular phenolaldehyde moulding compound of the cylindric rule of 10mm, barrel zone temperature is 100 DEG C～130 DEG C, extruder head temperature is 110 DEG C～120 DEG C, rotating speed 20rpm～300rpm.
Preparation method the most according to claim 6, it is characterised in that: the screw diameter of reciprocating single-screw intermixing extruder is 25mm～200mm, and screw rod active length is 5～25 with the ratio of screw diameter.
Preparation method the most according to claim 6, it is characterised in that: the screw diameter of single screw extrusion machine is 30mm～300mm, and screw rod active length is 3～20 with the ratio of screw diameter.
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