CN103849121A - High-strength low-density flame-retardant modified PET (polyethylene glycol terephthalate) material and its preparation method - Google Patents
High-strength low-density flame-retardant modified PET (polyethylene glycol terephthalate) material and its preparation method Download PDFInfo
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- CN103849121A CN103849121A CN201210505601.9A CN201210505601A CN103849121A CN 103849121 A CN103849121 A CN 103849121A CN 201210505601 A CN201210505601 A CN 201210505601A CN 103849121 A CN103849121 A CN 103849121A
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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
- 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
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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
- 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
- B29B7/726—Measuring properties of mixture, e.g. temperature or density
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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
- 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
- B29B7/728—Measuring data of the driving system, e.g. torque, speed, power, vibration
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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
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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
- B29C2948/92609—Dimensions
- B29C2948/92619—Diameter or circumference
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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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- 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
- B29C2948/92761—Mechanical properties
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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
- B29C2948/92819—Location or phase of control
- B29C2948/92828—Raw material handling or dosing, e.g. active hopper or feeding device
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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
- B29C2948/92819—Location or phase of control
- B29C2948/9298—Start-up, shut-down or parameter setting phase; Emergency shut-down; Material change; Test or laboratory equipment or studies
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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
- B29C48/03—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
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Abstract
The invention belongs to the technical field of high polymer materials, and relates to a modified polyethylene glycol terephthalate (PET) material and its preparation method. The material comprises the following components by weight: 40-50 parts of PET, 30-40 parts of glass fiber, 5-20 parts of glass bead, 0.3-0.6 part of a lubricant, 0.3-0.6 part of an antioxidant, 0.6-1 part of a coupling agent, 0.2-0.7 part of a nucleation agent, 4-6 parts of brominated epoxy resin and 4-6 parts of antimony trioxide. The material has the advantages of high strength, low density, flame retardance and the like, the cost is reduced greatly, and the scope of application is expanded greatly.
Description
Technical field
The invention belongs to technical field of polymer materials, relate to a kind of modification pet material and preparation method thereof.
Background technology
Polyethylene terephthalate (PET) is a kind of engineering plastics of excellent combination property.PET tool has good mechanical property. and rigidity is high. and hardness is large, and water-absorbent is very little, good stability of the dimension.Good toughness, shock-resistant, rub resistance, resistance to creep.Chemical resistant properties is good, is dissolved in cresols, the vitriol oil, oil of mirbane, Tricholroacetic Acid, chlorophenol, is insoluble to the features such as methyl alcohol, ethanol, acetone, alkane.Itself mainly becomes various bottles by blowing, as container, and is spun into fiber applications.Apply in electronic apparatus and automotive industry as its alternative nylon of engineering plastics and polybutylene terephthalate.
But PET also has shortcoming, its crystallization rate is slow, and undercapacity own is to bear high strength application requiring, and density is large, and than large 30% left and right of Other Engineering plastic density, itself does not possess flame retardant effect.It is subject to the restriction of security in actual applications.
Summary of the invention
The object of the invention is to provides flame-retardant modified pet material of a kind of high-strength low-density and preparation method thereof for overcoming the defect existing in prior art.This material has high strength and modulus, density is reduced to the degree identical with Other Engineering plastics simultaneously, its cost is reduced significantly, make it have good flame retardant effect by the interpolation of fire retardant, meet in actual applications the requirement of fire safety, make its scope of application obtain larger expansion.
For achieving the above object, the present invention is by the following technical solutions:
A kind of modification polyethylene terephthalate, made by the component that comprises following weight part:
Polyethylene terephthalate 35-50 part,
Glass microballon 5-20 part,
Glass fibre 30-45 part,
Lubricant 0.3-0.6 part,
Oxidation inhibitor 0.3-0.6 part,
Nucleator 0.2-0.7 part,
Brominated epoxy resin 4-6 part,
Antimonous oxide 4-6 part,
Coupling agent 0.6-1 part.
Described glass microballon is hollow glass microbead, and mean density is 0.3-0.6g/cm
3.
Described glass fibre is continuous glass fibre, and diameter is 10-15 μ m, is preferably 10-12 μ m.
Described lubricant is selected from one or more in stearyl alcohol, silicone or pentaerythritol stearate (PETS).
Described oxidation inhibitor is selected from four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester (antioxidant 1010), β-(3,5-di-tert-butyl-hydroxy phenyl) positive octadecanol ester of propionic acid (antioxidant 1076) or oxidation inhibitor P262(oxidation inhibitor P262 be the composite oxidation inhibitor obtaining of hindered phenol stabilizer and processing stabilizers phosphorous acid ester) and in one or more.
Described nucleator is selected from saturated carboxylic acid sodium salt (nucleant agent N aV101), one or more in the ionomer (nucleator Surlyn) of ethylene/methacrylic acid.
Described brominated epoxy resin is EP type brominated epoxy resin, and molecular weight is 8000-25000.
Described brominated epoxy resin and the weight ratio of antimonous oxide are (2:3) ~ (3:2).
Described coupling agent is selected from one or more of (coupling agent KH-560) in γ-methacryloxypropyl trimethoxy silane (coupling agent kh-570) or γ-(2,3-glycidoxy) propyl trimethoxy silicane.
A preparation method for above-mentioned modification polyethylene terephthalate, comprises the following steps:
By PET 40-50 part, lubricant 0.3-0.6 part, oxidation inhibitor 0.3-0.6 part, coupling agent 0.6-1 part, nucleator 0.2-0.7 part, 4-6 part brominated epoxy resin, 4-6 part antimonous oxide, mixes at a high speed through high mixer;
The compound obtaining is poured twin-screw extrusion owner spout into, then 30-40 part glass fibre is added to entrance by rear end glass adds, and 5-10 part glass microballon adds from twin-screw extrusion pusher side spout, obtains product through the pelletizing of screw extrusion press tie rod.
The mixing condition of described high mixer is that rotating speed is 800-1000rpm, normal temperature, and mixing time is 3-6min.
The extrusion temperature of described dual-screw-stem machine is 240-260 ℃.
Compared with prior art, the present invention has following beneficial effect:
The invention provides a kind of high-strength low-density fire retardant polyethylene terephthalate material, this material makes PET have high strength and modulus by glass REINFORCED PET, adding of fire retardant makes material in this reach V-0 level flame-retardant standard, can substitute nylon, the engineering plastics such as PBT are in the application of electronic apparatus and automobile and other industries, PET is cheap simultaneously, the not high expander more of comprehensive cost Application Areas.Density is reduced to the degree identical with Other Engineering plastics simultaneously, and at some, to the comparatively strict industry of density requirements, its application also can not be restricted.
Embodiment
Below in conjunction with embodiment, the present invention is further illustrated.
In following examples, be all according to ASTM standard testing to the testing standard of product.
Embodiment 1
By 35 parts of PET, 0.3 part of silicone, 0.1 part of antioxidant 1010,0.2 part of antioxidant 1076,0.2 part of nucleator Surlyn, 0.6 part of coupling agent kh-570, it is 800rpm that 6 parts of EP type brominated epoxy resins (molecular weight is 8000) and 4 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 3:2) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 6min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 12 μ m) add entrance by rear end glass and add, and (mean density is 0.5g/cm to 10 parts of hollow glass microbeads by 45 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Embodiment 2
By 40 parts of PET, 0.3 part of lubricant PETS, 0.2 part of antioxidant 1010,0.4 part of antioxidant 1076,0.5 part of nucleator Surlyn, 0.7 part of coupling agent kh-570, it is 1000rpm that 5 parts of EP type brominated epoxy resins (molecular weight is 10000) and 5 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 1:1) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 3min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 12 μ m) add entrance by rear end glass and add, and (mean density is 0.3g/cm to 20 parts of hollow glass microbeads by 30 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Embodiment 3
By 40 parts of PET, 0.3 part of stearyl alcohol, 0.5 part of oxidation inhibitor P262,0.7 part of nucleator Surlyn, 0.8 part of coupling agent kh-570, it is 800rpm that 4 parts of EP type brominated epoxy resins (molecular weight is 20000) and 6 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 2:3) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 6min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 12 μ m) add entrance by rear end glass and add, and (mean density is 0.6g/cm to 15 parts of hollow glass microbeads by 35 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Embodiment 4
By 45 parts of PET, 0.4 part of silicone, 0.2 part of antioxidant 1010,0.2 part of antioxidant 1076,0.5 part of nucleant agent N aV1011,1 part of coupling agent KH-560,5 parts of EP type brominated epoxy resins (molecular weight is 25000) and 5 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 1:1) are used high mixer high-speed mixing, rotating speed is 900rpm, normal temperature, and mixing time is 5min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 15 μ m) add entrance by rear end glass and add, and (mean density is 0.5g/cm to 15 parts of hollow glass microbeads by 30 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product through the pelletizing of twin screw extruder tie rod.
Embodiment 5
By 40 parts of PET, 0.4 part of silicone, 0.4 part of antioxidant 1076,0.5 part of nucleant agent N aV1011,0.9 part of coupling agent KH-560, it is 1000rpm that 5 parts of EP type brominated epoxy resins (molecular weight is 18000) and 5 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 1:1) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 6min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 13 μ m) add entrance by rear end glass and add, and (mean density is 0.6g/cm to 20 parts of hollow glass microbeads by 30 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 260-280 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Embodiment 6
By 40 parts of PET, 0.6 part of stearyl alcohol, 0.3 part of antioxidant 1076,0.5 part of nucleant agent N aV1011,1 part of coupling agent KH-560, it is 800rpm that 5 parts of EP type brominated epoxy resins (molecular weight is 12000) and 5 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 1:1) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 4min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 10 μ m) add entrance by rear end glass and add, and (mean density is 0.3g/cm to 20 parts of hollow glass microbeads by 30 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Embodiment 7
By 50 parts of PET, 0.6 part of stearyl alcohol, 0.3 part of antioxidant 1076,0.5 part of nucleant agent N aV1011,1 part of coupling agent KH-560, it is 800rpm that 5 parts of EP type brominated epoxy resins (molecular weight is 12000) and 5 parts of antimonous oxides (weight ratio of brominated epoxy resin and antimonous oxide is 1:1) are used high mixer high-speed mixing, rotating speed, normal temperature, mixing time is 4min; The compound obtaining is poured Screw Extrusion owner spout into, then (diameter is that 10 μ m) add entrance by rear end glass and add, and (mean density is 0.3g/cm to 5 parts of hollow glass microbeads by 30 parts of continuous glass fibres
3) add by side spout, control extruder temperature at 240-260 ℃, mixture can be obtained to product modification polyethylene terephthalate through the pelletizing of twin screw extruder tie rod, product correlated performance is tested in table 1.
Table 1
| Embodiment | Embodiment 1 | Embodiment 5 | Embodiment 6 |
| Tensile strength MPa | 135 | 117 | 112 |
| Elongation at break % | 7.8 | 8.5 | 9.2 |
| Flexural strength MPa | 230 | 204 | 198 |
| Modulus in flexure MPa | 12950 | 9450 | 9522 |
| Simply supported beam notched Izod impact strength KJ/m 2 | 8.0 | 7.5 | 7.1 |
| Simply supported beam unnotched impact strength KJ/m 2 | 81 | 72 | 69 |
| Density g/cm 3 | 1.59 | 1.42 | 1.45 |
| Flame retardant rating | FV-0 | FV-0 | FV-0 |
By table 1, the invention provides a kind of high-strength low-density fire retardant polyethylene terephthalate material, this material makes PET have high strength and modulus by glass REINFORCED PET, adding of fire retardant makes material in this reach V-0 level flame-retardant standard, can substitute nylon, the engineering plastics such as PBT are in the application of electronic apparatus and automobile and other industries, and PET is cheap simultaneously, the not high expander more of comprehensive cost Application Areas.Density is reduced to the degree identical with Other Engineering plastics simultaneously, and at some, to the comparatively strict industry of density requirements, its application also can not be restricted.
The above-mentioned description to embodiment is can understand and apply the invention for ease of those skilled in the art.Person skilled in the art obviously can easily make various modifications to these embodiment, and General Principle described herein is applied in other embodiment and needn't passes through performing creative labour.Therefore, the invention is not restricted to the embodiment here, those skilled in the art are according to announcement of the present invention, and not departing from the improvement that category of the present invention makes and revise all should be within protection scope of the present invention.
Claims (10)
1. a modification polyethylene terephthalate, is characterized in that: be made up of the component that comprises following weight part:
Polyethylene terephthalate 35-50 part,
Glass microballon 5-20 part,
Glass fibre 30-45 part,
Lubricant 0.3-0.6 part,
Oxidation inhibitor 0.3-0.6 part,
Nucleator 0.2-0.7 part,
Brominated epoxy resin 4-6 part,
Antimonous oxide 4-6 part,
Coupling agent 0.6-1 part.
2. modification polyethylene terephthalate according to claim 1, is characterized in that: described glass microballon is hollow glass microbead, and mean density is 0.3-0.6g/cm
3.
3. modification polyethylene terephthalate according to claim 1, is characterized in that: described glass fibre is continuous glass fibre, and diameter is 10-15 μ m, is preferably 10-12 μ m.
4. modification polyethylene terephthalate according to claim 1, is characterized in that: described lubricant is selected from one or more in stearyl alcohol, silicone or pentaerythritol stearate;
Or described oxidation inhibitor is selected from one or more in four [β-(3,5-di-tert-butyl-hydroxy phenyl) propionic ester] pentaerythritol ester, β-positive octadecanol ester of (3,5-di-tert-butyl-hydroxy phenyl) propionic acid or oxidation inhibitor P262.
5. modification polyethylene terephthalate according to claim 1, is characterized in that: described nucleator is selected from saturated carboxylic acid sodium salt one or more in the ionomer of ethylene/methacrylic acid.
6. modification polyethylene terephthalate according to claim 1, is characterized in that: described brominated epoxy resin is EP type brominated epoxy resin, and molecular weight is 8000-25000.
7. modification polyethylene terephthalate according to claim 1, is characterized in that: described brominated epoxy resin and the weight ratio of antimonous oxide are (2:3) ~ (3:2).
8. modification polyethylene terephthalate according to claim 1, it is characterized in that: described coupling agent is selected from one or more in γ-methacryloxypropyl trimethoxy silane or γ-(2,3-glycidoxy) propyl trimethoxy silicane.
9. a preparation method for arbitrary described modification polyethylene terephthalate in claim 1-8, is characterized in that: comprise the following steps:
By PET 40-50 part, lubricant 0.3-0.6 part, oxidation inhibitor 0.3-0.6 part, coupling agent 0.6-1 part, nucleator 0.2-0.7 part, 4-6 part brominated epoxy resin, 4-6 part antimonous oxide, mixes at a high speed through high mixer;
The compound obtaining is poured twin-screw extrusion owner spout into, then 30-40 part glass fibre is added to entrance by rear end glass adds, and 5-10 part glass microballon adds from twin-screw extrusion pusher side spout, obtains product through the pelletizing of screw extrusion press tie rod.
10. preparation method according to claim 9, is characterized in that: the mixing condition of described high mixer is that rotating speed is 800-1000rpm, normal temperature, and mixing time is 3-6min;
Or the extrusion temperature of described dual-screw-stem machine is 240-260 ℃.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108659481A (en) * | 2018-05-31 | 2018-10-16 | 广州找塑料新材料科技有限公司 | Vinal enhances high-modulus polyethylene terephthalate composite material and preparation method and application |
| CN110452503A (en) * | 2019-08-14 | 2019-11-15 | 凌云工业股份有限公司上海凌云汽车研发分公司 | A kind of preparation method of the automobile power cell incrustation of light weight high fire-retardance |
| CN110452504A (en) * | 2019-08-14 | 2019-11-15 | 凌云工业股份有限公司上海凌云汽车研发分公司 | A kind of preparation method of the automobile flame-proof battery case upper cover with electro-magnetic screen function |
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| CN1580099A (en) * | 2003-08-11 | 2005-02-16 | 上海杰事杰新材料股份有限公司 | Continuous fiber reinforced thermoplastic composite material |
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