CN102775776A - Glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and preparation method thereof - Google Patents
Glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and preparation method thereof Download PDFInfo
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- CN102775776A CN102775776A CN2012102476526A CN201210247652A CN102775776A CN 102775776 A CN102775776 A CN 102775776A CN 2012102476526 A CN2012102476526 A CN 2012102476526A CN 201210247652 A CN201210247652 A CN 201210247652A CN 102775776 A CN102775776 A CN 102775776A
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- alloy composite
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- polyamide
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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
-
- 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
- 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
Abstract
The invention relates to a glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and a preparation method of the glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite. The composite comprises the following components in percentage by weight: 20-40 percent of polyamide 6 (PA6), 15-35 percent of polyamide 66 (PA66), 2-10 percent of compound flame-retardant masterbatch, 22-35 percent of glass fiber, 0.5-1 percent of an antioxygen and 0.5-1 percent of a lubricant dispersing agent. The preparation method of the composite comprises the following steps of: weighing the raw materials according to the weight proportions; putting the raw materials into a high mixing machine to mix for 2-5 minutes; discharging; and extruding and pelleting by a twin-screw extruder to process at the temperature of 225-260 DEG C under the condition of screw revolution of 30-40HZ. Compared with the prior art, the composite has the advantages of high comparative tracking index (CTI) value, low flame-retardant precipitation property, halogen-free environment friendliness, comprehensive performance equalization and the like, and can be widely applied to products of contacts, leakage protectors, circuit breaker shells and the like in the electronics field.
Description
Technical field
The present invention relates to a kind of glass and strengthen alloy material, be specifically related to a kind of glass and strengthen PA6/PA66 alloy composite and preparation method thereof.
Background technology
In recent years; The electric industrial boom of China; Increasing demand to the fire-retardant enhancement engineering plastics of high electric insulation increases, all need be with the engineering plastic materials with good comprehensive mechanical properties, flame retardant properties and electrical insulation capability like low-voltage vacuum contactor, isolating switch, earth leakage protective device, connector, low-tension switch, the electric element of thin-walled etc.In this product scope, the consumption of polyamide (PA) is maximum.Yet because the relative industry of development of fire retardant relatively lags behind concerning the requirement that material improves day by day, a variety of fire retardants join mechanical property, the electrical insulation capability that can greatly reduce material in the material.For example, phase ratio creepage tracking index (CTI) drops to 200V even lower from 600V, and in addition, along with the enforcement of RoHs of European Union and WEEE instruction, traditional bromine is that flame-retardant system can not satisfy this requirement, and the use of some fire retardant simultaneously also can be restricted.
Summary of the invention
The objective of the invention is to overcome the defective that above-mentioned prior art exists, provide a kind of glass to strengthen PA6/PA66 alloy composite and preparation method thereof.Glass of the present invention strengthens the PA6/PA66 alloy composite and has high CTI value, the low fire retardant property separated out; Halogen-free environmental; Advantages such as comprehensive mechanical property is good can be widely used in the product of field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
The objective of the invention is to realize through following technical scheme:
The present invention relates to a kind of glass and strengthen the PA6/PA66 alloy composite, comprise each component of following weight percent content:
Preferably, the limiting viscosity of described PA6 is 2.4dL/g.
Preferably, the limiting viscosity of described PA66 is 2.7dL/g.
Preferably, said compositional flame-retardant master batch is composite voluntarily by my company, is mixed by three kinds of components, specifically comprises each component of following weight percent content: deironing red phosphorus master batch: 50%; Antimigration agent: 25%; High CTI auxiliary agent: 25%.
Preferably, described spun glass is the alkali free glass fibre that handle through silane coupling agent on the surface.
Preferably, described oxidation inhibitor is Hinered phenols antioxidant.
Preferably, described lubrication dispersing agent is a silicone.
The invention still further relates to a kind of preparation method of aforesaid glass enhancing PA6/PA66 alloy composite, be specially: said each component is put into high-speed mixer and mixing by weight ratio, discharging, the twin screw extruder extruding pelletization gets final product.
Preferably, the said blended time is 2～5 minutes.
Preferably, the extrusion temperature of said twin screw extruder is 225～260 ℃, and the screw rod revolution is 30～40HZ.
Compared with prior art, the present invention has following beneficial effect:
1, the present invention adopts compositional flame-retardant master batch system, compares with traditional fire-retardant master granule, and compositional flame-retardant master batch system has following characteristics: 1) comprehensive mechanical property is higher; 2) can CTI be brought up to 650V from 320V; 3) overcome the product surface that common red phosphorus moves under certain condition, under the effect of oxygen G&W, finally to form the mordant phosphorus of metallic article be the defective of acidic substance to red phosphorus then.
2, the oxidation inhibitor of the present invention's employing is Hinered phenols antioxidant, can improve compsn in the antioxidant property of the course of processing and the ageing resistance in the use.
3, the present invention adopts silicone as lubricant, has improved the materials processed flowability, reduces frictional coefficient; Improve smooth property, under specific processing conditions, adopt dispersiveness better, the residence time is short; Shear weak slightly combination, prevent that fire retardant from decomposing, thereby guaranteed the steady quality of material.
4, the glass that makes of the present invention strengthens the PA6/PA66 alloy composite and has high CTI value, the low fire retardant property separated out; Halogen-free environmental; Advantages such as over-all properties equilibrium can be widely used in the product of field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
Embodiment
Below in conjunction with specific embodiment the present invention is elaborated.Following examples will help those skilled in the art further to understand the present invention, but not limit the present invention in any form.Should be pointed out that to those skilled in the art, under the prerequisite that does not break away from the present invention's design, can also make some distortion and improvement.These all belong to protection scope of the present invention.
The limiting viscosity of the PA6 that adopts among following Comparative Examples and the embodiment is 2.4dL/g; The limiting viscosity of PA66 is 2.7dL/g; Spun glass is the alkali free glass fibre that handle through silane coupling agent on the surface; Oxidation inhibitor is Hinered phenols antioxidant; Lubrication dispersing agent is a silicone.
Comparative Examples 1～3
The PA6/PA66 alloy composite comprises each component of the weight percent content shown in the table 1; Its preparation method is following:
(1) takes by weighing raw material by the weight percent content shown in the table 1, put into high-speed mixer and mixing 2～5 minutes, discharging;
(2) above-mentioned mixed raw materials is added twin screw extruder, extruding pelletization, both said PA6/PA66 alloy composite; Parameters such as the extrusion temperature of said twin screw extruder, screw rod revolution are as shown in table 2.
Embodiment 1～4
Glass strengthens the PA6/PA66 alloy composite, comprises each component of the weight percent content shown in the table 1; Its preparation method is following:
(1) takes by weighing raw material by the weight percent content shown in the table 1, put into high-speed mixer and mixing 2～5 minutes, discharging; Compositional flame-retardant master batch in the table 1 comprises each component of following mass percentage content: deironing red phosphorus master batch: 50%; Antimigration agent: 25%; High CTI auxiliary agent: 25%;
(2) above-mentioned mixed raw materials is added twin screw extruder, extruding pelletization, both said glass enhancing PA6/PA66 alloy composite; Parameters such as the extrusion temperature of said twin screw extruder, screw rod revolution are as shown in table 2.
The formula for raw stock of table 1 Comparative Examples 1～3 and embodiment 1～4
Table 2
Embodiment 5, performance test
Adopt the ASTM standard, the PA6/PA66 alloy combination matter sample to embodiment 1～4 and Comparative Examples 1～3 make carries out the performance test contrast.The test performance contrast is as shown in table 3:
Table 3
Can know by table 3; The glass that embodiment 1 adopts compositional flame-retardant master batch system to make strengthens the PA6/PA66 alloy composite; Compare with the PA6/PA66 alloy composite that Comparative Examples 1,2,3 adopts traditional fire-retardant master granule (deironing red phosphorus master batch) system to make, have following characteristics:
(1) comprehensive mechanical property is higher: on mechanical performance indexs such as tensile strength, flexural strength, modulus in flexure, shock strength, all obtain bigger raising;
(2) the CTI value is higher: CTI is brought up to 650V from 320V;
(3) pH value that obtains of corrosion test becomes neutrality by acidity; Explain that the compositional flame-retardant master batch system that the present invention adopts has overcome the product surface that common red phosphorus moves in traditional fire-retardant master granule system under certain condition, under the effect of oxygen G&W, finally to form the mordant phosphorus of metallic article be the defective of acidic substance to red phosphorus then.
In sum; Glass of the present invention strengthens the PA6/PA66 alloy composite and has high CTI value, the low fire retardant property separated out; Halogen-free environmental, advantage such as comprehensive mechanical property is good can be widely used in the product of field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
Claims (10)
1. a glass strengthens the PA6/PA66 alloy composite, it is characterized in that said compsn comprises each component of following weight percent content:
2. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that the limiting viscosity of described PA6 is 2.4dL/g.
3. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that the limiting viscosity of described PA66 is 2.7dL/g.
4. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that said compositional flame-retardant master batch comprises each component of following weight percent content: deironing red phosphorus master batch: 50%; Antimigration agent: 25%; High CTI auxiliary agent: 25%.
5. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that, described spun glass is the alkali free glass fibre that handle through silane coupling agent on the surface.
6. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that described oxidation inhibitor is Hinered phenols antioxidant.
7. glass according to claim 1 strengthens the PA6/PA66 alloy composite, it is characterized in that described lubrication dispersing agent is a silicone.
8. a glass as claimed in claim 1 strengthens the preparation method of PA6/PA66 alloy composite; It is characterized in that said preparation method is specially: said each component is put into high-speed mixer and mixing, discharging by weight ratio; The twin screw extruder extruding pelletization gets final product.
9. glass according to claim 8 strengthens the preparation method of PA6/PA66 alloy composite, it is characterized in that the said blended time is 2～5 minutes.
10. glass according to claim 8 strengthens the preparation method of PA6/PA66 alloy composite, it is characterized in that the extrusion temperature of said twin screw extruder is 225～260 ℃, and the screw rod revolution is 30～40Hz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210247652.6A CN102775776B (en) | 2012-07-17 | 2012-07-17 | Glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210247652.6A CN102775776B (en) | 2012-07-17 | 2012-07-17 | Glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and preparation method thereof |
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| Publication Number | Publication Date |
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| CN102775776A true CN102775776A (en) | 2012-11-14 |
| CN102775776B CN102775776B (en) | 2015-03-25 |
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| CN201210247652.6A Expired - Fee Related CN102775776B (en) | 2012-07-17 | 2012-07-17 | Glass fiber reinforced polyamide 6/polyamide 66 (PA6/PA66) alloy composite and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017355A (en) * | 2014-01-15 | 2014-09-03 | 温州聚兴塑化有限公司 | Reinforced nylon with high CTI (comparative tracking index) value and good flame retardance and preparation method thereof |
| CN109679338A (en) * | 2018-12-23 | 2019-04-26 | 德力西电气有限公司 | A kind of halogen-free flame-retardant polyamide alloy material of low precipitation and preparation method thereof |
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| JPS62223261A (en) * | 1986-03-26 | 1987-10-01 | Mitsubishi Gas Chem Co Inc | Molding polyamide resin composition having excellent platability with metal |
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| CN101440211A (en) * | 2007-11-19 | 2009-05-27 | 上海日之升新技术发展有限公司 | Environment-protecting flame-retardant composite filling reinforced nylon 66 and nylon 6 alloy material |
| CN102115595A (en) * | 2010-01-04 | 2011-07-06 | 佛山市顺德区威林工程塑料有限公司 | High electrical property and low corrosion flame retardant reinforcing nylon material and preparation method thereof |
| CN102382464A (en) * | 2011-09-07 | 2012-03-21 | 上海日之升新技术发展有限公司 | High-CTI (comparative tracking index) value and low-corrosivity red phosphorus flame-retarding glass fiber reinforced PA66 (polyamide 66) material and preparation method thereof |
-
2012
- 2012-07-17 CN CN201210247652.6A patent/CN102775776B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62223261A (en) * | 1986-03-26 | 1987-10-01 | Mitsubishi Gas Chem Co Inc | Molding polyamide resin composition having excellent platability with metal |
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Non-Patent Citations (1)
| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017355A (en) * | 2014-01-15 | 2014-09-03 | 温州聚兴塑化有限公司 | Reinforced nylon with high CTI (comparative tracking index) value and good flame retardance and preparation method thereof |
| CN109679338A (en) * | 2018-12-23 | 2019-04-26 | 德力西电气有限公司 | A kind of halogen-free flame-retardant polyamide alloy material of low precipitation and preparation method thereof |
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| CN102775776B (en) | 2015-03-25 |
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