CN102492268A - Alkali resistance glass fiber reinforced thermoplasticity polyester composite material and preparation method thereof - Google Patents
Alkali resistance glass fiber reinforced thermoplasticity polyester composite material and preparation method thereof Download PDFInfo
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- CN102492268A CN102492268A CN201110395831XA CN201110395831A CN102492268A CN 102492268 A CN102492268 A CN 102492268A CN 201110395831X A CN201110395831X A CN 201110395831XA CN 201110395831 A CN201110395831 A CN 201110395831A CN 102492268 A CN102492268 A CN 102492268A
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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
- 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
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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
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7461—Combinations of dissimilar mixers
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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
- B29B7/80—Component parts, details or accessories; Auxiliary operations
- B29B7/88—Adding charges, i.e. additives
- B29B7/90—Fillers or reinforcements, e.g. fibres
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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
-
- 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
- B29C48/001—Combinations of extrusion moulding with other shaping operations
- B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
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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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- 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
- 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
- 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
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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
- B29C2948/92819—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
Abstract
The invention discloses an alkali resistance glass fiber reinforced thermoplasticity polyester composite material and a preparation method thereof. The alkali resistance glass fiber reinforced thermoplasticity polyester composite material is characterized by being composed of thermoplasticity polyester 37.2-88.5 wt%, glass fiber 10-40 wt%, flexibilizer 1-10 wt%, composite end closing agents 0.1-8 wt%, water repellent agents 0.1-3 wt%, antioxygen 0.1-0.6 wt%, metal passivator 0.1-0.6 wt% and nucleating agents 0.1-0.6 wt%. The preparation method comprises the following steps: drying various raw materials and placing the raw materials in a high speed mixer for even mixing in proportion; enabling the mixture to be fed in a twin-screw extruder at the temperature of 210-280 DEG C for squeezing out and prilling; adding the glass fiber from a lateral feeding port, pulling stripes and conducting sized dicing. The alkali resistance glass fiber reinforced thermoplasticity polyester composite material not only has good mechanical property, but also has excellent alkali resistance, can be widely used in the fields which have high alkali resistance requirements such as automobile connector assemblies and electric products.
Description
Technical field
The present invention relates to a kind of alkali-proof glass and strengthen thermoplastic polyester matrix material and preparation method thereof, belong to macromolecular material and forming process field.
Background technology
Thermoplastic polyester; For example polybutylene terephthalate (PBT), polyethylene terephthalate (PET); Have excellent mechanical property, resistance toheat, electric property, resistance to chemical reagents and good processing properties; The matrix material that particularly with PBT is matrix is widely used in fields such as precise electronic, automobile mechanical and electrical connector, along with the continuous expansion of the Application Areas of PBT based composites, for the anti-hydrolytic performance of material particularly alkaline resistance properties require increasingly high.
Yet; Owing to contain groups such as a large amount of ester bonds and end carboxyl, terminal hydroxy group among the PBT; When at high temperature being in wet environment, the PBT matrix material ester linkage breaking can take place particularly in the alkaline environment time; Cause material property to reduce, hold carboxyl can quicken the degraded of ester bond simultaneously, further worsen the performance of material.
The method of the anti-hydrolytic performance of at present general raising PBT mainly is the viscosity that reduces the content of carboxyl end group of PBT resin and use chainextender increase PBT resin, but these methods all can not effectively stop the reduction of the performance of PBT material.Publication number is to have proposed to use two reactive functionality compounds to improve the method for PBT anti-hydrolytic performance as chainextender, oxazoline compound as end-capping reagent in the patent of CN1380355A, but not mentioned glass strengthens the hydrolysis improvement method of thermoplastic polyester class matrix material in this patent.Publication number is that CN1757673A has proposed to add epoxy compounds and fragrant carbonizing diimine and improves the organic solvent resistance of PBT resin as properties-correcting agent, but the method for the not mentioned protection thermoplastic polyester of this patent ester group.
Summary of the invention
The purpose of this invention is to provide a kind of alkali resistance glass-fiber reinforced polyester composite material and preparation method thereof, this material has excellent alkaline resistance properties and anti-hydrolytic performance when keeping the excellent mechanical property of glass-fiber reinforced polyester composite material.
In order to achieve the above object, the invention provides a kind of alkali resistance glass and strengthen the thermoplastic polyester matrix material, it is characterized in that, form by following raw materials by weight:
Thermoplastic polyester 37.2-88.5wt%;
Spun glass 10-40wt %;
Toughner 1-10wt%;
Compound end-capping reagent 0.1-8wt%;
Hydrophobizing agent 0.1-3wt%;
Oxidation inhibitor 0.1-0.6wt %;
Metal passivator 0.1-0.6wt %;
Nucleator 0.1-0.6wt %.
Preferably, described thermoplastic polyester is polybutylene terephthalate or polyethylene terephthalate, and the content of carboxyl end group of thermoplastic polyester is less than 50meq/kg, and the content of remainder catalyst is less than 80ppm.
Preferably, described toughner is the ethylene-acrylate multiple copolymer that contains epoxy-functional.
Preferably, described spun glass is to contain the spun glass that the silane coupling agent of epoxide group soaked into.
Preferably, described compound end-capping reagent be in mono-epoxy compounds, polyepoxy compound, carbodiimide and the isocyanic ester any one or two or more through artificial mixed or high mixer blended mixture.
Preferably, described hydrophobizing agent is polyethylene wax, pentaerythritol stearate, fluorocarbon resin and the modified product that contains YSR 3286 or one or more the mixture in the micron silica.
Preferably, described oxidation inhibitor comprises one or more the mixture in phenols, thioether class and the phosphorous acid esters.
Preferably, described metal passivator is a metal phosphate.
Preferably, described nucleator is a grain diameter less than the inorganic nucleator of 1 μ m and one or more the mixture in the organic nucleating agent.
The present invention also provides the preparation method of above-mentioned alkali resistance glass-fiber reinforced polyester composite material, it is characterized in that, concrete steps are following:
The first step: behind each raw material drying, insert high-speed mixer in proportion and mix in proportion;
Second step: it is extruding pelletization in 210-280 ℃ the twin screw extruder that the mixture that obtains in the first step is fed into temperature, and spun glass adds from the side spout, the tie rod pelletizing.
The present invention has adopted compound end-capping reagent, in the processing stability that improves material, helps to improve the alkaline resistance properties of material.What the oxidation inhibitor effect was the most excellent among the present invention is the composite use of adopting Hinered phenols and thioether class, Hinered phenols and phosphorous acid esters or these three kinds of oxidation inhibitor.The present invention has also adopted hydrophobizing agent, improving Drawing abillity and good surface appearance simultaneously, gives the alkaline resistance properties and the long-term anti-hydrolytic performance of the excellence of material.In addition, can add additive commonly used in the raw material, give material different performances, addible component also comprises any releasing agent, photostabilizer except that above-mentioned oxidation inhibitor, anti-electrostatic agent, tinting material etc.
The present invention not only has the good mechanical performance, and has excellent alkaline resistance properties, can be widely used in the field that automobile connector, electronic apparatus etc. are had relatively high expectations to alkali resistance.
Embodiment
Below in conjunction with embodiment, the present invention is described further.
Matrix resin is a polybutylene terephthalate, and wherein to represent the remainder catalyst content among the PBT respectively be 60ppm, 80ppm, 100ppm for PBT (Ti60), PBT (Ti80), PBT (Ti100); Propenoate toughner, the trade mark are PTW, DU PONT; Metal passivator, the trade mark are Sodium phosphate, dibasic, the beautiful minister bio tech ltd in Shanghai; Oxidation inhibitor is four [β-(3,5-di-tert-butyl-4-hydroxy phenyl) propionic acid] pentaerythritol ester, and the trade mark is Irganox 1010, and Switzerland Ciba company produces; Tetrafluoroethylene, the trade mark are F5A EX, Shanghai Su Wei chemical industry ltd.
Embodiment 1
Learn from else's experience 120 ℃ and dry polybutylene terephthalate (Ti60) 62.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Metal passivator 0.5wt%, oxidation inhibitor 0.3wt%, nucleator 0.3wt%; In super mixer, said components is mixed together evenly; Drop into the main feeder of twin screw extruder, the chopped glass fiber of 20wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
Embodiment 2
Learn from else's experience 120 ℃ and dry PBT (Ti60) 52.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Metal passivator 0.5wt%, oxidation inhibitor 0.3wt%, nucleator 0.3wt%; In super mixer, said components is mixed together evenly; Drop into the main feeder of twin screw extruder, the chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 3
Learn from else's experience 120 ℃ and dry PBT (Ti60) 42.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Metal passivator 0.5wt%, oxidation inhibitor 0.3wt%, nucleator 0.3wt%; In super mixer, said components is mixed together evenly; Drop into the main feeder of twin screw extruder, the chopped glass fiber of 40wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 4
Learn from else's experience 120 ℃ and dry PBT (Ti80) 52.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Metal passivator 0.5wt%, oxidation inhibitor 0.3wt%, nucleator 0.3wt%; In super mixer, said components is mixed together evenly; Drop into the main feeder of twin screw extruder, the chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 5
Learn from else's experience 120 ℃ and dry PBT (Ti100) 52.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Metal passivator 0.5wt%, oxidation inhibitor 0.3wt%, nucleator 0.3wt%; In super mixer, said components is mixed together evenly; Drop into the main feeder of twin screw extruder, the chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 6
Learn from else's experience 120 ℃ and dry PBT (Ti60) 50.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Tetrafluoroethylene 2wt%, metal passivator 0.5wt%, oxidation inhibitor 0.3wt%; Nucleator 0.3wt% is mixed together said components evenly in super mixer, drops into the main feeder of twin screw extruder; The chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 7
Learn from else's experience 120 ℃ and dry PBT (Ti60) 50.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; MB50-002 2wt%, metal passivator 0.5wt%, oxidation inhibitor 0.3wt%; Nucleator 0.3wt% is mixed together said components evenly in super mixer, drops into the main feeder of twin screw extruder; The chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
?
Embodiment 8
Learn from else's experience 120 ℃ and dry PBT (Ti60) 50.9wt% behind the 4h, propenoate toughner 10wt%, compound end-capping reagent 6wt%; Micron silica 2wt% after siloxanes soaks into, metal passivator 0.5wt%, oxidation inhibitor 0.3wt%; Nucleator 0.3wt% is mixed together said components evenly in super mixer, drops into the main feeder of twin screw extruder; The chopped glass fiber of 30wt% is by the feeding of side feeder, granulation after twin screw is extruded.Complete processing is: 230 ℃ of district's temperature, 250 ℃ of two district's temperature, 250 ℃ of three district's temperature, 250 ℃ of four district's temperature, 240 ℃ of five district's temperature, 240 ℃ of six district's temperature, 240 ℃ of seven district's temperature, 230 ℃ of eight district's temperature, 220 ℃ of nine district's temperature; 300 rev/mins of engine speeds.
It is 60ppm, 80ppm, 100ppm that PBT among the embodiment 1-8 (Ti60), PBT (Ti80), PBT (Ti100) represent the remaining titanium ion content among the PBT respectively.
The prepared product of embodiment 1-8 is checked its performance by following testing method:
Outward appearance test: pellet is injection molded into 50mm*90mm side's plate, square plate is contrasted cosmetic variation after in 10%NaOH solution, soaking 200 hours under 60 ℃ of temperature.
Mechanics Performance Testing: pellet is injection molded into the iso standard batten, contrast mechanical property conservation rate after in 10%NaOH solution, soaking 200 hours under 60 ℃ of temperature.
The performance test results is as shown in the table:
| Tensile strength, Mpa | Notched Izod impact strength, KJ/m 2 | Surface condition | Stretching strength retentivity, % | The notched Izod impact strength conservation rate, % | |
| Embodiment 1 | 120 | 7.6 | Slight efflorescence | 48 | 53 |
| Embodiment 2 | 125 | 13 | Slight efflorescence | 45 | 51 |
| Embodiment 3 | 130 | 14 | Serious efflorescence | 35 | 46 |
| Embodiment 4 | 125 | 10.8 | Serious efflorescence | 40 | 44 |
| Embodiment 5 | 128 | 11.3 | Serious efflorescence | 20 | 48 |
| Embodiment 6 | 120 | 11.1 | Slight efflorescence | 71 | 89 |
| Embodiment 7 | 125 | 11.3 | No change | 78 | 83 |
| Embodiment 8 | 121 | 12 | No change | 82 | 87 |
As above shown in the table, the present invention not only has the good mechanical performance, and has excellent alkaline resistance properties, can be widely used in the field that automobile connector, electronic apparatus etc. are had relatively high expectations to alkali resistance.
Claims (10)
1. an alkali resistance glass strengthens the thermoplastic polyester matrix material, it is characterized in that, is made up of following raw materials by weight:
Thermoplastic polyester 37.2-88.5wt%;
Spun glass 10-40wt %;
Toughner 1-10wt%;
Compound end-capping reagent 0.1-8wt%;
Hydrophobizing agent 0.1-3wt%;
Oxidation inhibitor 0.1-0.6wt %;
Metal passivator 0.1-0.6wt %;
Nucleator 0.1-0.6wt %.
2. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material; It is characterized in that; Described thermoplastic polyester is polybutylene terephthalate or polyethylene terephthalate; The content of carboxyl end group of thermoplastic polyester is less than 50meq/kg, and the content of remainder catalyst is less than 80ppm.
3. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material, it is characterized in that described toughner is the ethylene-acrylate multiple copolymer that contains epoxy-functional.
4. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material, it is characterized in that, described spun glass is to contain the spun glass that the silane coupling agent of epoxide group soaked into.
5. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material; It is characterized in that, described compound end-capping reagent be in mono-epoxy compounds, polyepoxy compound, carbodiimide and the isocyanic ester any one or two or more through artificial mixed or high mixer blended mixture.
6. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material; It is characterized in that described hydrophobizing agent is polyethylene wax, pentaerythritol stearate, fluorocarbon resin and the modified product that contains YSR 3286 or one or more the mixture in the micron silica.
7. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material, it is characterized in that, described oxidation inhibitor comprises one or more the mixture in phenols, thioether class and the phosphorous acid esters.
8. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material, it is characterized in that described metal passivator is a metal phosphate.
9. a kind of alkali resistance glass as claimed in claim 1 strengthens the thermoplastic polyester matrix material, it is characterized in that, described nucleator is a grain diameter less than the inorganic nucleator of 1 μ m and one or more the mixture in the organic nucleating agent.
10. the described a kind of alkali resistance glass of claim 1 strengthens the preparation method of thermoplastic polyester matrix material, it is characterized in that concrete steps are following:
The first step: behind each raw material drying, insert high-speed mixer in proportion and mix in proportion;
Second step: it is extruding pelletization in 210-280 ℃ the twin screw extruder that the mixture that obtains in the first step is fed into temperature, and spun glass adds from the side spout, the tie rod pelletizing.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110395831.XA CN102492268B (en) | 2011-12-04 | 2011-12-04 | Alkali resistance glass fiber reinforced thermoplasticity polyester composite material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110395831.XA CN102492268B (en) | 2011-12-04 | 2011-12-04 | Alkali resistance glass fiber reinforced thermoplasticity polyester composite material and preparation method thereof |
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| CN102492268A true CN102492268A (en) | 2012-06-13 |
| CN102492268B CN102492268B (en) | 2014-01-22 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103013068A (en) * | 2012-12-24 | 2013-04-03 | 江苏金发科技新材料有限公司 | Glass fiber reinforced PBT resin composition with refrigerant precipitation resistance and preparation method of glass fiber reinforced PBT resin composition |
| CN103497491A (en) * | 2013-10-14 | 2014-01-08 | 中塑联新材料科技湖北有限公司 | Material for replacing PVC (polyvinyl chloride) profile steel lining |
| CN105062011A (en) * | 2015-07-31 | 2015-11-18 | 江阴职业技术学院 | Continuous long glass fiber reinforced PBT composite material and preparation method thereof |
| WO2016101695A1 (en) * | 2014-12-26 | 2016-06-30 | 比亚迪股份有限公司 | Anti-yellowing composition, resin composition, metal-resin composite, preparation method and use thereof, and electronic product housing |
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| CN116219632A (en) * | 2022-12-12 | 2023-06-06 | 苏州鸿源特种纤维制品有限公司 | Treatment process of composite waterproof flame-retardant non-woven fabric |
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| CN103013068A (en) * | 2012-12-24 | 2013-04-03 | 江苏金发科技新材料有限公司 | Glass fiber reinforced PBT resin composition with refrigerant precipitation resistance and preparation method of glass fiber reinforced PBT resin composition |
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| CN107698943A (en) * | 2017-11-03 | 2018-02-16 | 重庆众誉材工科技有限公司 | A kind of high-heat-resisting glass-fiber reinforced polyester composite material and preparation method thereof |
| CN110256818A (en) * | 2019-04-30 | 2019-09-20 | 南通开普乐工程塑料有限公司 | A kind of hydrolysis fiber glass reinforced PBT and preparation method thereof |
| CN116219632A (en) * | 2022-12-12 | 2023-06-06 | 苏州鸿源特种纤维制品有限公司 | Treatment process of composite waterproof flame-retardant non-woven fabric |
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