CN103772921A - Glass fiber reinforced poly(ethylene terephthalate)/polycarbonate alloy - Google Patents

Glass fiber reinforced poly(ethylene terephthalate)/polycarbonate alloy Download PDF

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Publication number
CN103772921A
CN103772921A CN201210403197.4A CN201210403197A CN103772921A CN 103772921 A CN103772921 A CN 103772921A CN 201210403197 A CN201210403197 A CN 201210403197A CN 103772921 A CN103772921 A CN 103772921A
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polycarbonate
rare earth
district
earth compound
mixed
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CN103772921B (en
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穆兴文
宋阳
曹德志
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Heilongjiang Xinda Enterprise Group Co Ltd
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Heilongjiang Xinda Enterprise Group Co Ltd
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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
    • B29B9/12—Making granules characterised by structure or composition
    • B29B9/14—Making granules characterised by structure or composition fibre-reinforced
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58—Component parts, details or accessories; Auxiliary operations
    • B29B7/72—Measuring, controlling or regulating
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461—Combinations of dissimilar mixers
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/80—Component parts, details or accessories; Auxiliary operations
    • B29B7/88—Adding charges, i.e. additives
    • B29B7/90—Fillers or reinforcements, e.g. fibres
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/04—Particle-shaped
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • 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
    • 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
    • B29B9/12—Making granules characterised by structure or composition
    • B29B2009/125—Micropellets, microgranules, microparticles
    • 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
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • 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
    • 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
    • B29C2948/9259—Angular velocity
    • 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
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885—Screw or gear
    • 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
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Reinforced Plastic Materials (AREA)

Abstract

The invention relates to a glass fiber reinforced poly(ethylene terephthalate)/polycarbonate alloy and a preparation method thereof. The alloy has the innovation point that the glass fiber reinforced poly(ethylene terephthalate)/polycarbonate alloy is prepared by employing a liquid-phase chemical deposition method to cover a rare earth compound layer on surfaces of glass fiber and glass microspheres, and processing with poly(ethylene terephthalate), polycarbonate, a flexibilizer, a nucleating agent and an anti-oxidant in a melt blending manner by a double-screw extrusion machine. The alloy can be subjected to injection molding at a mold temperature of 60 DEG C, has the characteristics of being low in warping property, free of micromolecule volatile matter during spraying, excellent in mechanical properties, high in thermal deformation temperature, stable in dimension and the like, and is applicable to injection molding of vehicle doors, wind shields, tyre guard boards and even whole vehicle bodies.

Description

A kind of fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy
Technical field
The present invention relates to polymeric material field, be specifically related to a kind of fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
Background technology
Plasticization of Automobile is the development trend of automotive light weight technology.Auto body sheet is one of parts of weight maximum in automobile, and the plastic of wagon sheet is significant to alleviating car load deadweight.The vehicle body plastic plate of exploitation is take fiberglass reinforced polyethyleneterephthalate (PET) as main at present, and applied parts comprise front and rear covers, car door, vehicle body vertical panel, windsheild, tire backplate and even whole vehicle body.
Glass fibre REINFORCED PET material has good mechanical property, electrical insulation capability, resistance to chemical corrosion and ageing-resistant performance.Glass fibre REINFORCED PET material is in injection moulding process, because the orientation of glass fibre on flow direction causes anisotropy and the PET induced crystallization around glass, goods are less than and the contraction of flowing in vertical direction in the contraction of flow direction, and this ununiform shrinkage has caused product warpage serious.
Glass fibre mainly plays carrying effect in PET matrix, for can be better and resin matrix bonding, conventionally to carry out surface treatment to glass fibre.Treatment process mainly contains coupling agent treatment and grafting is processed two kinds.These two kinds of methods all can be incorporated into material by part small-molecule substance, and these small-molecule substances can evaporate in the time of product pyrolytic coating, form pore or bubble at lacquer painting, have a strong impact on quality product.
Polycarbonate (PC) good mechanical performance, good heat resistance.In glass fibre REINFORCED PET material, add polycarbonate (PC), can reduce the degree of crystallinity of PET, reduce the ununiform shrinkage causing because of crystallization.Glass microballon has spherical high symmetry structure, in glass REINFORCED PET material, adds glass microballon, can utilize the shape symmetry of glass microballon to alleviate and be orientated the anisotropy causing because of glass fibre.And then the problem of solution glass fibre REINFORCED PET material warp.
Lanthanum element electronegativity is extremely low, active large, adopt the liquid-phase chemistry deposition technique can be under suitable condition and silicon-dioxide and the aluminum oxide generation chemical reaction on glass fibre, glass microballon surface.Lanthanum element can also react with C, H and O in PET material.In glass REINFORCED PET material, serve as a connection, can obviously improve the wetting property between glass fibre, glass microballon and PET matrix, make it better and resin bond, in ensureing mechanical property, introduce without small-molecule substance, solved the problem of spraying process small molecular material volatilization.
Summary of the invention
The invention provides a kind of fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
Technical scheme of the present invention is made up of following three steps:
Step 1, is dissolved in dehydrated alcohol by a kind of or its combination in Lanthanum trichloride, lanthanum trioxide and lanthanum hydroxide by formula rate and is mixed with solution; Above solution and glass fibre are mixed in proportion, add in homemade high-pressure sealed reactor, 110～125 ℃ of temperature, stirred after 30 minutes, were cooled to room temperature discharging, filtered, dry.
Step 2, is dissolved in dehydrated alcohol by a kind of or its combination in Lanthanum trichloride, lanthanum trioxide and lanthanum hydroxide by formula rate and is mixed with solution; Above solution and glass microballon are mixed in proportion, add in homemade high-pressure sealed reactor, 110～125 ℃ of temperature, stirred after 30 minutes, were cooled to room temperature discharging, filtered, dry.
Step 3, takes each component by following mass percent: polyethylene terephthalate 45～60%, and polycarbonate 5～10%, glass microballon 3～8%, toughner 3～8%, nucleator 0.1～2%, oxidation inhibitor 0.2～0.7%, surplus is glass fibre.
After PET, PC, PTW, nucleator and oxidation inhibitor is dry, add in high-speed mixer and mix by proportioning, mixed material adds in twin screw extruder and melt extrudes.Glass fibre, glass microballon add by side feeding by formula rate.260～270 ℃, expressing technique Wei Yi district, 260～270 ℃, 2nd district, 260～270 ℃, 3rd district, 260～270 ℃, 4th district, 245～255 ℃, 5th district, 245～255 ℃, 6th district, 245～255 ℃, 7th district, 245～255 ℃, 8th district, 245～255 ℃, 9th district, 245～255 ℃, tenth district; Engine speed is 400～600rpm; Side feeding revolution is 5～10rpm; Main feeding feeding revolution is 20～30rpm.After water-cooled, air-cooled, granulation, obtain fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
The invention has the beneficial effects as follows: PC adds the degree of crystallinity that can reduce PET, reduce the ununiform shrinkage causing because of crystallization.Can utilize the adding of glass microballon the shape symmetry of glass microballon to alleviate and be orientated the anisotropy causing because of glass fibre.And then the problem of solution glass fibre REINFORCED PET material warp.With the replacement coupling modification of rare earth compound modified glass fibre peacekeeping glass microballon and graft modification, avoid the introducing of small-molecule substance, solve the volatilization problem of spraying process small molecular material.
specific embodiment:
Embodiment mono-
Lanthanum trichloride is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 0.5% weight percent; Glass fibre is mixed by 99.0%/1% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 110 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.Lanthanum trichloride is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 0.5% weight percent; Glass microballon is mixed by 99.0%/1% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 110 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.
Take each component by following mass percent: polyethylene terephthalate 45%, polycarbonate 5%, glass microballon 3%, toughner 3%, nucleator 0.1%, oxidation inhibitor 0.2%, surplus is glass fibre.
After PET, PC, PTW, nucleator and oxidation inhibitor is dry, add in high-speed mixer and mix by proportioning, mixed material adds in twin screw extruder and melt extrudes.Glass fibre, glass microballon add by side feeding by formula rate.260 ℃, expressing technique Wei Yi district, 260 ℃, 2nd district, 260 ℃, 3rd district, 260 ℃, 4th district, 245 ℃, 5th district, 245 ℃, 6th district, 245 ℃, 7th district, 245 ℃, 8th district, 245 ℃, 9th district, 245 ℃, tenth district; Engine speed is 400rpm; Side feeding revolution is 10rpm; Main feeding feeding revolution is 20rpm.After water-cooled, air-cooled, granulation, obtain fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
Embodiment bis-
Lanthanum trioxide is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 1% weight percent; Glass fibre is mixed by 99.1%/0.9% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 115 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.Lanthanum trichloride is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 1% weight percent; Glass microballon is mixed by 99.1%/0.9% weight ratio with above-mentioned lanthanum trioxide ethanolic soln, add in homemade high-pressure sealed reactor, 115 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.
Take each component by following mass percent: polyethylene terephthalate 50%, polycarbonate 7%, glass microballon 5%, toughner 5%, nucleator 1%, oxidation inhibitor 0.5%, surplus is glass fibre.
After PET, PC, PTW, nucleator and oxidation inhibitor is dry, add in high-speed mixer and mix by proportioning, mixed material adds in twin screw extruder and melt extrudes.Glass fibre, glass microballon add by side feeding by formula rate.265 ℃, expressing technique Wei Yi district, 265 ℃, 2nd district, 265 ℃, 3rd district, 265 ℃, 4th district, 240 ℃, 5th district, 240 ℃, 6th district, 240 ℃, 7th district, 240 ℃, 8th district, 240 ℃, 9th district, 240 ℃, tenth district; Engine speed is 400rpm; Side feeding revolution is 10rpm; Main feeding feeding revolution is 20rpm.After water-cooled, air-cooled, granulation, obtain fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
Embodiment tri-
Lanthanum hydroxide is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 1.5% weight percent; Glass fibre is mixed by 99.2%/0.8% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 120 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.Lanthanum hydroxide is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 1.5% weight percent; Glass microballon is mixed by 99.2%/0.8% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 120 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.
Take each component by following mass percent: polyethylene terephthalate 55%, polycarbonate 8%, glass microballon 7%, toughner 7%, nucleator 1.5%, oxidation inhibitor 0.6%, surplus is glass fibre.
After PET, PC, PTW, nucleator and oxidation inhibitor is dry, add in high-speed mixer and mix by proportioning, mixed material adds in twin screw extruder and melt extrudes.Glass fibre, glass microballon add by side feeding by formula rate.260 ℃, expressing technique Wei Yi district, 260 ℃, 2nd district, 26 ℃, 3rd district, 260 ℃, 4th district, 245 ℃, 5th district, 245 ℃, 6th district, 245 ℃, 7th district, 245 ℃, 8th district, 245 ℃, 9th district, 245 ℃, tenth district; Engine speed is 400rpm; Side feeding revolution is 10rpm; Main feeding feeding revolution is 20rpm.After water-cooled, air-cooled, granulation, obtain fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
Embodiment tetra-
Lanthanum trichloride is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 2% weight percent; Glass fibre is mixed by 99.3%/0.7% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 125 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.Lanthanum trichloride is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 2% weight percent; Glass microballon is mixed by 99.3%/0.7% weight ratio with above-mentioned Lanthanum trichloride ethanolic soln, add in homemade high-pressure sealed reactor, 125 ℃ of temperature, stirred after 30 minutes, and discharging is filtered, dry.
Take each component by following mass percent: polyethylene terephthalate 60%, polycarbonate 10%, glass microballon 8%, toughner 8%, nucleator 2%, oxidation inhibitor 0.7%, surplus is glass fibre.
After PET, PC, PTW, nucleator and oxidation inhibitor is dry, add in high-speed mixer and mix by proportioning, mixed material adds in twin screw extruder and melt extrudes.Glass fibre, glass microballon add by side feeding by formula rate.260 ℃, expressing technique Wei Yi district, 260 ℃, 2nd district, 26 ℃, 3rd district, 260 ℃, 4th district, 245 ℃, 5th district, 245 ℃, 6th district, 245 ℃, 7th district, 245 ℃, 8th district, 245 ℃, 9th district, 245 ℃, tenth district; Engine speed is 400rpm; Side feeding revolution is 10rpm; Main feeding feeding revolution is 20rpm.After water-cooled, air-cooled, granulation, obtain fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy.
The glass fibre REINFORCED PET material of reference example for adding coupling agent KH560 to make, embodiment mono-to embodiment tetra-lists in table 1 with reference example detected result:
Table 1
Test item Unit Examination criteria Embodiment mono-(60 ℃ of mould temperature) Embodiment bis-(60 ℃ of mould temperature) Embodiment tri-(60 ℃ of mould temperature) Embodiment tetra-(60 ℃ of mould temperature) Reference example (60 ℃ of mould temperature)
Simply supported beam unnotched impact strength KJ/m 2 ISO 179 45.2 44.3 46 42.1 36.3
Simply supported beam notched Izod impact strength KJ/m 2 ISO 179 10.4 11.2 9.7 11.5 8.6
Tensile strength MPa ISO 527 120.8 118.7 115.4 117.3 115.4
Elongation at break % ISO 527 4.1 4.2 4.1 3.6 3.5
Flexural strength MPa ISO 178 185.3 184.1 187.5 189 181.3
Modulus in flexure MPa ISO 178 6205 6134 5968 6007 5436
Coating surface after spraying 　 　 Smooth surface Smooth surface Smooth surface Smooth surface There are pore, bubble
Contraction ratio (longitudinally/laterally) % GB/T 5585 0.26/0.28 0.30/0.33 0.25/0.28 0.29/0.32 0.12/0.33

Claims (6)

1. a fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy, it is characterized in that, composed of the following components by quality percentage composition: polyethylene terephthalate 45～60%, polycarbonate 5～10%, glass microballon 3～8%, toughner 3～8%, nucleator 0.1～2%, oxidation inhibitor 0.2～0.7%, surplus is glass fibre.
2. fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy according to claim 1, is characterized in that: polyethylene terephthalate is medium-viscosity resin limiting viscosity 0.78～0.92 deciliter/gram; Polycarbonate is that ester-interchange method is produced, number-average molecular weight 25000; Toughner is ethylene-propylene acid butyl ester-glycidyl methacrylate (PTW); Oxidation inhibitor is N, a kind of or its combination in N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxyl propionic acid amide) and tricresyl phosphite (2,4-di-tert-butyl) ester; Nucleator is two (α-tolylene) sorbyl alcohol.
3. fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy according to claim 1, is characterized in that: glass fibre is the short alkali free glass fibre of cutting, and staple length is 1.5～6 millimeters, and filament diameter is 9～14 microns; Glass microballon particle diameter is 1～100 micron.
4. fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy according to claim 1, is characterized in that: rare earth compound is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 0.5～2% weight percent; Glass fibre is mixed to (weight of the ethanolic soln of rare earth compound account for gross weight 0.7～1%) with the ethanolic soln of above-mentioned rare earth compound, add in homemade high-pressure sealed reactor 110～125 ℃ of temperature, stir after 30 minutes, be cooled to room temperature discharging, filter, dry.
5. fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy according to claim 1, is characterized in that: rare earth compound is dissolved in to dehydrated alcohol, is mixed with the solution that concentration is 0.5～2% weight percent; Glass microballon is mixed to (weight of the ethanolic soln of rare earth compound account for gross weight 0.7～1%) with the ethanolic soln of above-mentioned rare earth compound, add in homemade high-pressure sealed reactor 110～125 ℃ of temperature, stir after 30 minutes, be cooled to room temperature discharging, filter, dry.
6. according to fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy described in claim 1,4 and 5, it is characterized in that: rare earth compound is a kind of or its combination in Lanthanum trichloride, lanthanum trioxide and lanthanum hydroxide.
CN201210403197.4A 2012-10-22 2012-10-22 A kind of fiberglass reinforced polyethyleneterephthalate/polycarbonate alloy Expired - Fee Related CN103772921B (en)

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