CN102775776B - 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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- CN102775776B CN102775776B CN201210247652.6A CN201210247652A CN102775776B CN 102775776 B CN102775776 B CN 102775776B CN 201210247652 A CN201210247652 A CN 201210247652A CN 102775776 B CN102775776 B CN 102775776B
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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
- 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
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
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 fiberglass reinforced alloy material, be specifically related to a kind of fiberglass reinforced PA 6/PA66 alloy composite and preparation method thereof.
Background technology
In recent years; the electric industrial boom of China; growing to the demand of high electric insulation fire-retardant enhancement engineering plastics, as low-voltage vacuum contactor, isolating switch, earth leakage protective device, connector, low-tension switch, the electric element of thin-walled etc. all need the engineering plastic materials with having good comprehensive mechanical property, flame retardant properties and electrical insulation capability.In this product scope, the consumption of polymeric amide (PA) is maximum.But 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 retardant joins mechanical property, the electrical insulation capability that can greatly reduce material in material.Such as, it is even lower that phase ratio creepage tracking index (CTI) drops to 200V from 600V, in addition, along with the enforcement of European Union RoHs and WEEE instruction, traditional bromine system flame-retardant system can not meet this requirement, and the use of some fire retardant simultaneously also can be restricted.
Summary of the invention
The object of the invention is to the defect overcoming the existence of above-mentioned prior art, a kind of fiberglass reinforced PA 6/PA66 alloy composite and preparation method thereof is provided.Fiberglass reinforced PA 6/PA66 alloy composite of the present invention has high CTI value, the low fire retardant property separated out; halogen-free environmental; the advantages such as comprehensive mechanical property is excellent, can be widely used in the product of the field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
The object of the invention is to be realized by following technical scheme:
The present invention relates to a kind of fiberglass reinforced PA 6/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, described 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 glass fibre is the alkali free glass fibre of surface through silane coupling agent process.
Preferably, described oxidation inhibitor is Hinered phenols antioxidant.
Preferably, described lubrication dispersing agent is silicone.
The invention still further relates to a kind of preparation method of aforesaid fiberglass reinforced PA 6/PA66 alloy composite, be specially: described each component is put into high-speed mixer and mixing, discharging by weight ratio, twin screw extruder extruding pelletization.
Preferably, the time of described mixing is 2 ~ 5 minutes.
Preferably, the extrusion temperature of described twin screw extruder is 225 ~ 260 DEG C, and 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) CTI can be brought up to 650V from 320V; 3) overcome the product surface that common red phosphorus moves under certain condition, then red phosphorus finally forms the defect to metallic article mordant phosphorus system acidic substance under the effect of oxygen G&W.
2, the oxidation inhibitor that the present invention adopts is Hinered phenols antioxidant, can improve the ageing resistance of composition in the antioxidant property and use procedure of the course of processing.
3, the present invention adopts silicone as lubricant, improves materials processing mobility, reduces frictional coefficient, improve slipping, adopt better dispersed under specific processing conditions, the residence time is short, shear slightly weak combination, prevent fire retardant from decomposing, thus ensure that the steady quality of material.
4, the fiberglass reinforced PA 6/PA66 alloy composite that the present invention obtains has high CTI value, the low fire retardant property separated out; halogen-free environmental; the advantages such as over-all properties is balanced, can be widely used in the product of the 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 described in detail.Following examples will contribute to those skilled in the art and understand the present invention further, but not limit the present invention in any form.It should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, some distortion and improvement can also be made.These all belong to protection scope of the present invention.
The limiting viscosity of the PA6 adopted in following comparative example and embodiment is 2.4dL/g; The limiting viscosity of PA66 is 2.7dL/g; Glass fibre is the alkali free glass fibre of surface through silane coupling agent process; Oxidation inhibitor is Hinered phenols antioxidant; Lubrication dispersing agent is silicone.
comparative example 1 ~ 3
PA6/PA66 alloy composite, comprises each component of the weight percent content shown in table 1; Its preparation method is as follows:
(1) take raw material by the weight percent content shown in table 1, put into high-speed mixer and mixing 2 ~ 5 minutes, discharging;
(2) the above-mentioned raw material mixed is added twin screw extruder, extruding pelletization, both described PA6/PA66 alloy composite; The parameter such as extrusion temperature, screw rod revolution of described twin screw extruder is as shown in table 2.
embodiment 1 ~ 4
Fiberglass reinforced PA 6/PA66 alloy composite, comprises each component of the weight percent content shown in table 1; Its preparation method is as follows:
(1) take raw material by the weight percent content shown in table 1, put into high-speed mixer and mixing 2 ~ 5 minutes, discharging; Compositional flame-retardant master batch in 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) the above-mentioned raw material mixed is added twin screw extruder, extruding pelletization, both described fiberglass reinforced PA 6/PA66 alloy composite; The parameter such as extrusion temperature, screw rod revolution of described twin screw extruder is as shown in table 2.
The formula for raw stock of table 1 comparative example 1 ~ 3 and embodiment 1 ~ 4
Table 2
embodiment 5, performance test
Adopt ASTM standard, to the PA6/PA66 alloy combination matter sample that embodiment 1 ~ 4 and comparative example 1 ~ 3 obtain, carry out performance test comparison.Test performance contrast is as shown in table 3:
Table 3
As shown in Table 3, the fiberglass reinforced PA 6/PA66 alloy composite that embodiment 1 adopts compositional flame-retardant master batch system obtained, compared with the PA6/PA66 alloy composite adopting traditional fire-retardant master granule (deironing red phosphorus master batch) system obtained with comparative example 1,2,3, there is following characteristics:
(1) comprehensive mechanical property is higher: on the mechanical performance indexs such as tensile strength, flexural strength, modulus in flexure, shock strength, all obtain larger raising;
(2) CTI value is higher: CTI is brought up to 650V from 320V;
(3) pH value that corrosion test obtains becomes neutrality from acidity, illustrate that the compositional flame-retardant master batch system that the present invention adopts overcomes the product surface that in traditional fire-retardant master granule system, common red phosphorus moves under certain condition, then red phosphorus finally forms the defect to metallic article mordant phosphorus system acidic substance under the effect of oxygen G&W.
In sum; fiberglass reinforced PA 6/PA66 alloy composite of the present invention has high CTI value, the low fire retardant property separated out; halogen-free environmental, the advantages such as comprehensive mechanical property is excellent, can be widely used in the product of the field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
Claims (4)
1. a fiberglass reinforced PA 6/PA66 alloy composite, is characterized in that, said composition is made up of each component of following weight percent content:
The limiting viscosity of described PA6 is 2.4dL/g; The limiting viscosity of described PA66 is 2.7dL/g; Described 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%; Described lubrication dispersing agent is silicone; Described glass fibre is the alkali free glass fibre of surface through silane coupling agent process; Described oxidation inhibitor is Hinered phenols antioxidant.
2. the preparation method of a fiberglass reinforced PA 6/PA66 alloy composite as claimed in claim 1, it is characterized in that, described preparation method is specially: described each component is put into high-speed mixer and mixing, discharging by weight ratio, twin screw extruder extruding pelletization.
3. the preparation method of fiberglass reinforced PA 6/PA66 alloy composite according to claim 2, is characterized in that, the time of described mixing is 2 ~ 5 minutes.
4. the preparation method of fiberglass reinforced PA 6/PA66 alloy composite according to claim 2, is characterized in that, the extrusion temperature of described twin screw extruder is 225 ~ 260 DEG C, and 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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| CN102775776A CN102775776A (en) | 2012-11-14 |
| CN102775776B true 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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| 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 |
| CN1854190A (en) * | 2005-04-29 | 2006-11-01 | 上海日之升新技术发展有限公司 | Thermoplastic non-halogen and fire-retardant reinforced Nylon 6 and Nylon 66 alloy |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Patent Citations (4)
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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 |
| CN1854190A (en) * | 2005-04-29 | 2006-11-01 | 上海日之升新技术发展有限公司 | Thermoplastic non-halogen and fire-retardant reinforced Nylon 6 and Nylon 66 alloy |
| 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 |
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