CN103087480A - High-toughness low-warping low-mold temperature glass fiber-reinforced PET/PA6 alloy and preparation method thereof - Google Patents

High-toughness low-warping low-mold temperature glass fiber-reinforced PET/PA6 alloy and preparation method thereof Download PDF

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Publication number
CN103087480A
CN103087480A CN2011103473395A CN201110347339A CN103087480A CN 103087480 A CN103087480 A CN 103087480A CN 2011103473395 A CN2011103473395 A CN 2011103473395A CN 201110347339 A CN201110347339 A CN 201110347339A CN 103087480 A CN103087480 A CN 103087480A
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pet
pa6
reinforced pet
low
mould temperature
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CN2011103473395A
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穆兴文
代汝军
马东坡
梁伟
王海波
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黑龙江鑫达企业集团有限公司
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Publication of CN103087480A publication Critical patent/CN103087480A/en

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/80Component parts, details or accessories; Auxiliary operations
    • B29B7/88Adding charges, i.e. additives
    • B29B7/90Fillers or reinforcements, e.g. fibres
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/58Component parts, details or accessories; Auxiliary operations
    • B29B7/72Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/74Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7461Combinations of dissimilar mixers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/12Making granules characterised by structure or composition
    • B29B9/14Making granules characterised by structure or composition fibre-reinforced
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/04Particle-shaped
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00Mixing; Kneading
    • B29B7/30Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29BPREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B9/00Making granules
    • B29B9/02Making granules by dividing preformed material
    • B29B9/06Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92561Time, e.g. start, termination, duration or interruption
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92704Temperature
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895Barrel or housing

Abstract

The invention provides a high-toughness low-warping low-mold temperature glass fiber-reinforced PET/PA6 alloy and a preparation method thereof. The PET/PA6 alloy comprises, by mass, 10 to 60% of PET, 10 to 30% of PA6, 5 to 10% of a flexibilizer, 0 to 15% of a mineral filler, 10 to 40% of a glass fiber, 5 to 15% of a compatilizer, 0.1 to 0.5% of a composite nucleating agent, 0.1 to 0.5% of a coupling agent and 0.2 to 0.7% of an anti-oxidant. According to the invention, PET, PA6, the flexibilizer, the glass fiber, the composite nucleating agent, the mineral filler, the compatilizer, the coupling agent and the anti-oxidant undergo melt blending through a double-screw extruder so as to prepare the glass fiber-reinforced PET/PA6 alloy. The glass fiber-reinforced PET/PA6 alloy has stable injection molding formability at a mold temperature of 60 DEG C and has high impact strength, low warping and a high thermal deformation temperature.

Description

The low mould temperature glass REINFORCED PET of the low warpage of a kind of high tenacity/PA6 Alloy And Preparation Method

Technical field:

The present invention relates to the modified poly ester technical field, relate in particular to the low mould temperature glass REINFORCED PET of the low warpage of a kind of high tenacity/PA6 Alloy And Preparation Method

Background technology:

The main direction of automotive material technical development is lightweight, environmental protection.Alleviating the automobile own wt is to reduce discharging, the main measure that improves efficiency of combustion.Auto body sheet is the parts of weight maximum in automobile, so the plastic of wagon sheet is significant to alleviating automotive dead weight.

PET has good mechanical property, heat-drawn wire is high, electrical insulation capability and resistance to chemical corrosion are good, but PET melt cooling speed is slow, molding cycle is long, molding shrinkage is large, poor dimensional stability, the high reason of the required mould temperature of moulding limit it in the application in engineering plastics field.Nylon 6 is a kind of important thermoplastic engineering plastics, and its crystallization velocity is fast, good mechanical performance, but comparatively responsive to temperature, moisture, with the increase of temperature, humidity, its mechanical property will reduce, dimensional stability also is affected simultaneously, has limited its application in the engineering plastics field.Therefore the PET/PA6 alloy can make up shortcoming separately, and the PET/PA6 alloy has better chemical stability, thermostability, higher intensity and processing characteristics, lower water-absorbent preferably.But because PET, PA6 are inconsistent Jingjing co-mixing system, consistency is poor, needs to add compatilizer can improve its consistency in system, obtains the more excellent material of performance.The PET goods need the mould temperature at 120-150 ℃ when injection moulding, cause shaping cycle long, and production efficiency is low.In order to accelerate the crystallization velocity of matrix material, required mould temperature when reducing injection moulding shortens shaping cycle, can be as adding composite nucleating agent in system.Add grain refining, the crystallization rate that can make glass REINFORCED PET/PA6 alloy of composite nucleating agent increase, and then shorten shaping cycle.

After adding glass fibre in the PET/PA6 alloy, significantly improved the drawing high of matrix material, flexural strength, obtained the better matrix material of dimensional stability.But the orientation of glass on flow direction causes anisotropy, makes alloy that warpage occur when moulding.Add the high mineral filler of shape symmetry (as solid glass microballon etc.) in glass REINFORCED PET/PA6 alloy material and can alleviate the anisotropy that the glass orientation causes, obviously improve the warpage issues of glass REINFORCED PET/PA6 alloy.Glass REINFORCED PET/PA6 alloy material has high tenacity, high rigidity, low warpage, low mould temperature, dimensional stabilizing is acted charitably and the heat-drawn wire high.Due to glass REINFORCED PET/good over-all properties of PA6 alloy material, it can be used for injection moulding car door, vehicle body vertical panel, windsheild, tire backplate and even whole vehicle body.

Summary of the invention:

Technical problem to be solved by this invention is to provide the low mould temperature glass REINFORCED PET of the low warpage of a kind of high tenacity/PA6 Alloy And Preparation Method.

Technical scheme of the present invention is:

The low mould temperature glass REINFORCED PET of the low warpage of a kind of high tenacity/PA6 alloy comprises following component by mass percentage:

The preparation method of the low mould temperature glass REINFORCED PET of the low warpage of above-mentioned high tenacity/PA6 alloy comprises:

Step 1, take each component by quality percentage composition claimed in claim 1, with PET, PA6 120 ℃ of lower vacuum-dryings more than 8 hours, mineral filler, glass, toughner, compatilizer and composite nucleating agent under 80 ℃ dry 4 hours;

Step 2, the PET with after drying treatment, PA6, mineral filler, compatilizer, toughner, composite nucleating agent, coupling agent and oxidation inhibitor are put into high-speed mixer, stir at normal temperatures 5-15min;

Step 3, the mixed material of step 2 is joined in the hopper of twin screw extruder, the glass fiber opening of glass fibre from the twin screw stage casing is added, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing;

Wherein, the temperature setting of twin screw extruder is set to: a district: 250~260 ℃; 2nd district: 255~265 ℃; 3rd district: 260~270 ℃; 4th district: 265~275 ℃; 5th district: 270~280 ℃; 6th district: 265~275 ℃; 7th district: 260~270 ℃; 265~275 ℃ of head temperatures, screw speed are 180~220r/min.

Specific examples:

Embodiment one

With PET, PA6 120 ℃ of lower vacuum-dryings 8 hours, mineral filler, glass fibre, compatilizer, toughner, composite nucleating agent under 80 ℃ dry 4 hours.Take PET 45Kg, PA615Kg, mineral filler 10Kg, compatilizer 5Kg, toughner (PTW) 5Kg, composite nucleating agent (two (α-tolylene) sorbyl alcohol: Surlyn 8920=2: 1) 0.3Kg, coupling agent (γ-(2,3-glycidoxy) propyl trimethoxy silicane) 0.3Kg, oxidation inhibitor (N, N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide): tricresyl phosphite (2,4-di-tert-butyl) ester=1: 1) 0.5Kg; Then mix 15min in high-speed mixer.Mixed material is joined in twin screw extruder by loading hopper, and glass fibre 30Kg is added by the glass fiber opening in twin screw extruder stage casing, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing.The temperature setting of twin screw extruder is set to: a district: 255 ℃; 2nd district: 260 ℃; 3rd district: 265 ℃; 4th district: 270 ℃; 5th district: 275 ℃; 6th district: 270 ℃; 7th district: 265 ℃; 270 ℃ of head temperatures, screw speed are 200r/min.

Embodiment two

With PET, PA6 120 ℃ of lower vacuum-dryings 8 hours, mineral filler, glass fibre, compatilizer, composite nucleating agent under 80 ℃ dry 4 hours.Take PET 50Kg, PA615Kg, mineral filler 10Kg, compatilizer 5Kg, composite nucleating agent (two (α-tolylene) sorbyl alcohol: Surlyn 8920=2: 1) 0.3Kg, coupling agent (γ-(2, the 3-glycidoxy) propyl trimethoxy silicane) 0.3Kg, oxidation inhibitor (N, N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide): tricresyl phosphite (2,4-di-tert-butyl) ester=1: 1) 0.5Kg; Then mix 15min in high-speed mixer.Mixed material is joined in twin screw extruder by loading hopper, and glass fibre 30Kg is added by the glass fiber opening in twin screw extruder stage casing, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing.The temperature setting of twin screw extruder is set to: a district: 255 ℃; 2nd district: 260 ℃; 3rd district: 265 ℃; 4th district: 270 ℃; 5th district: 275 ℃; 6th district: 270 ℃; 7th district: 265 ℃; 270 ℃ of head temperatures, screw speed are 200r/min.

Embodiment three

With PET, PA6 120 ℃ of lower vacuum-dryings 8 hours, glass fibre, compatilizer, toughner, composite nucleating agent under 80 ℃ dry 4 hours.Take PET 45Kg, PA615Kg, compatilizer 5Kg, toughner 5Kg, composite nucleating agent (two (α-tolylene) sorbyl alcohol: Surlyn 8920=2: 1) 0.3Kg, coupling agent (γ-(2, the 3-glycidoxy) propyl trimethoxy silicane) 0.3Kg, oxidation inhibitor (N, N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide): tricresyl phosphite (2,4-di-tert-butyl) ester=1: 1) 0.5Kg; Then mix 15min in high-speed mixer.Mixed material is joined in twin screw extruder by loading hopper, and glass fibre 40Kg is added by the glass fiber opening in twin screw extruder stage casing, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing.The temperature setting of twin screw extruder is set to: a district: 255 ℃; 2nd district: 260 ℃; 3rd district: 265 ℃; 4th district: 270 ℃; 5th district: 275 ℃; 6th district: 270 ℃; 7th district: 265 ℃; 270 ℃ of head temperatures, screw speed are 200r/min.

Embodiment four

With PET 120 ℃ of lower vacuum-dryings 8 hours, mineral filler, glass fibre, compatilizer, toughner, composite nucleating agent under 80 ℃ dry 4 hours.Take PET 60Kg, mineral filler 10Kg, compatilizer 5Kg, toughner 5Kg, composite nucleating agent (two (α-tolylene) sorbyl alcohol: Surlyn 8920=2: 1) 0.3Kg, coupling agent (γ-(2, the 3-glycidoxy) propyl trimethoxy silicane) 0.3Kg, oxidation inhibitor (N, N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide): tricresyl phosphite (2,4-di-tert-butyl) ester=1: 1) 0.5Kg; Then mix 15min in high-speed mixer.Mixed material is joined in twin screw extruder by loading hopper, and glass fibre 30Kg is added by the glass fiber opening in twin screw extruder stage casing, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing.The temperature setting of twin screw extruder is set to: a district: 255 ℃; 2nd district: 260 ℃; 3rd district: 265 ℃; 4th district: 270 ℃; 5th district: 275 ℃; 6th district: 270 ℃; 7th district: 265 ℃; 270 ℃ of head temperatures, screw speed are 200r/min.

Embodiment one is injection molded into standard test specimen to the glass REINFORCED PET of example four/PA6 alloy under 60 ℃ of mould temperature, commercially available import glass REINFORCED PET product is injection molded into standard test specimen under 60 ℃, 120 ℃ of mould temperature.Test performance is as shown in table 1:

Table 1

Wherein embodiment one is example of the present invention, embodiment two to example four, commercially available imported product be the reference example.The contrast of embodiment one and embodiment two can be found out from table 1, and toughner PTW adds unnotched impact strength, the notched Izod impact strength that can obviously improve the PET/PA6 alloy, stretches, bending property slightly reduces; The contrast of embodiment one and embodiment three can be found out, adds the formula system of mineral filler, and vertical, horizontal contraction ratio differs 0.02 left and right, and numerical value approaches, and shows the warpage issues that can obviously improve system that adds of mineral filler.Do not add the example of mineral filler, vertical, horizontal contraction ratio differs 0.27 left and right, and warpage is obvious; The contrast of embodiment one and embodiment four can find out, PA6 adds the impelling strength that can further improve system, obtains the glass REINFORCED PET material of high tenacity.We can find out from table 1, commercially available imported product every mechanical property difference when 60 ℃ of mould temperature and 120 ℃ of lower injection mouldings of mould temperature is very large, and embodiment 1 injection moulding impact property when 60 ℃ of mould temperature is better than the commercially available prod in 120 ℃ of lower injection mouldings of mould temperature; Stretching, bending property and commercially available prod approach; High symmetry mineral filler add obvious reduced the material transverse contraction than and the difference of longitudinal contraction ratio, significantly improved the warpage issues of material, overcome glass REINFORCED PET poor toughness, warpage is serious and the injection mould temperature is high problem, can be used for injection moulding car door, vehicle body vertical panel, windsheild, tire backplate and even whole vehicle body.

Claims (11)

1. the low mould temperature glass REINFORCED PET of the low warpage of high tenacity/PA6 alloy, is characterized in that, and is composed of the following components by the quality percentage composition:
2. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: PET is moderately viscous resin, limiting viscosity 0.78~0.92 deciliter/gram.
3. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: PA6 is moderately viscous resin, limiting viscosity 2.5-3.0 deciliter/gram.
4. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: toughner is PTW (ethylene-propylene acid butyl ester-glycidyl methacrylate).
5. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: mineral filler is a kind of or its combination in solid glass micro-bead, superfine talcum powder and mineral fibre.
6. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: glass fibre is the alkali-free roving glass fiber, and diameter is: 9~14 μ m.
7. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: compatilizer is a kind of or its combination in PE-g-MAH, PP-g-MAH and SEBS-g-GMA.
8. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, and it is characterized in that: composite nucleating agent is a kind of or its combination in two (α-tolylene) sorbyl alcohols and Surlyn 8920.
9. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, it is characterized in that: coupling agent is a kind of or its combination in γ-(2,3-glycidoxy) propyl trimethoxy silicane and γ-propyl methacrylate methoxylsilane.
10. the low warpage of high tenacity according to claim 1 is hanged down mould temperature glass REINFORCED PET/PA6 alloy, it is characterized in that: oxidation inhibitor is N, N '-hexa-methylene two (3,5-di-t-butyl-4-hydroxybenzene propionic acid amide) and a kind of or its combination in tricresyl phosphite (2,4-di-tert-butyl) ester.
11. the preparation method of the low mould temperature glass REINFORCED PET of the low warpage of high tenacity as described in any one in claim 1-10/PA6 alloy is characterized in that, comprising:
Step 1, take each component by quality percentage composition claimed in claim 1, with PET, PA6 120 ℃ of lower vacuum-dryings more than 8 hours, mineral filler, glass, toughner, compatilizer and composite nucleating agent under 80 ℃ dry 4 hours; Step 2, the PET with after drying treatment, PA6, mineral filler, compatilizer, toughner, coupling agent, composite nucleating agent and oxidation inhibitor are put into high-speed mixer, stir at normal temperatures 5-15min; Step 3, the mixed material of step 2 is joined in the hopper of twin screw extruder, the glass fiber opening of glass fibre from the twin screw stage casing is added, through melt blending extrude, water-cooled, air knife are cooling, granulation, homogenizing, packing; Wherein, the temperature setting of twin screw extruder is set to: a district: 250~260 ℃; 2nd district: 255~265 ℃; 3rd district: 260~270 ℃; 4th district: 265~275 ℃; 5th district: 270~280 ℃; 6th district: 265~275 ℃; 7th district: 260~270 ℃; 265~275 ℃ of head temperatures, screw speed are 180~220r/min.
CN2011103473395A 2011-11-07 2011-11-07 High-toughness low-warping low-mold temperature glass fiber-reinforced PET/PA6 alloy and preparation method thereof CN103087480A (en)

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Cited By (4)

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Publication number Priority date Publication date Assignee Title
CN103254639A (en) * 2013-05-31 2013-08-21 常熟市弘基无纺制品有限公司 Ethylene glycol terephthalate-modified halogen-free flame-retardant polyamide composite material
CN104177787A (en) * 2013-05-24 2014-12-03 上海杰事杰新材料(集团)股份有限公司 Low shrinkage and high strength modified PET (polyethylene terephthalate) material and preparation method thereof
CN104231610A (en) * 2013-06-24 2014-12-24 黑龙江鑫达企业集团有限公司 Buckling deformation-resistant reinforced polyamide 6 material and preparation method thereof
CN104629350A (en) * 2013-11-12 2015-05-20 黑龙江鑫达企业集团有限公司 High temperature resistant reinforced polyamide 6 material and preparation method thereof

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US3751535A (en) * 1969-12-31 1973-08-07 Snia Viscosa Preparation of moulding compositions containing glass fibers
CN1749314A (en) * 2005-10-09 2006-03-22 华东理工大学 PA/PET high molecule alloy material
CN101280095A (en) * 2008-05-20 2008-10-08 上海大学 Glass fiber reinforced polyethylene glycol terephthalate composite material and preparation thereof

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Publication number Priority date Publication date Assignee Title
US3751535A (en) * 1969-12-31 1973-08-07 Snia Viscosa Preparation of moulding compositions containing glass fibers
CN1749314A (en) * 2005-10-09 2006-03-22 华东理工大学 PA/PET high molecule alloy material
CN101280095A (en) * 2008-05-20 2008-10-08 上海大学 Glass fiber reinforced polyethylene glycol terephthalate composite material and preparation thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104177787A (en) * 2013-05-24 2014-12-03 上海杰事杰新材料(集团)股份有限公司 Low shrinkage and high strength modified PET (polyethylene terephthalate) material and preparation method thereof
CN103254639A (en) * 2013-05-31 2013-08-21 常熟市弘基无纺制品有限公司 Ethylene glycol terephthalate-modified halogen-free flame-retardant polyamide composite material
CN104231610A (en) * 2013-06-24 2014-12-24 黑龙江鑫达企业集团有限公司 Buckling deformation-resistant reinforced polyamide 6 material and preparation method thereof
CN104629350A (en) * 2013-11-12 2015-05-20 黑龙江鑫达企业集团有限公司 High temperature resistant reinforced polyamide 6 material and preparation method thereof

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