CN106479165A - Halogen-free flame-retardant long fiberglass reinforced PA 6 composite and its one-step preppn process - Google Patents
Halogen-free flame-retardant long fiberglass reinforced PA 6 composite and its one-step preppn process Download PDFInfo
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- CN106479165A CN106479165A CN201610874413.1A CN201610874413A CN106479165A CN 106479165 A CN106479165 A CN 106479165A CN 201610874413 A CN201610874413 A CN 201610874413A CN 106479165 A CN106479165 A CN 106479165A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
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- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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Abstract
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite, is made up of the component of following parts by weight：Nylon 6 30 60, roving glass fiber 20 40, DOPO (9,10 dihydro, 9 oxa-, 10 phospho hetero phenanthrene 10 oxide) 12 16, antioxidant 0.5 1, compatilizer 5 10, triazine carbon forming agent 35, synergist 15, nucleator 0.5 1, UV absorbent 0.5 1, surfactant 0.5 1, viscosifier 14, chain extender 13, nano titanium oxide 0.5 1, nanoscale haydite powder 0.5 1, dioctyl phthalate 13.Instant component is relatively simple, reasonable mixture ratio, by adding nucleator, viscosifier, polymer heterogeneous nucleation can be made, improve rigidity, wearability and the processing characteristics of material, thus changing the intrinsic viscosity of polyester, fusing point and its molecular chain structure, improving the quality of PA6 melt, strengthening the bulk strength of PA6 material.
Description
Technical field
The present invention relates to halogen-free flame-retardant polymer technical field of composite materials is and in particular to a kind of halogen-free flameproof roving glass fiber increases
Strong PA6 composite and its one-step preppn process.
Background technology
Nylon (polyamide) is a kind of current domestic and international application most widely thermoplastic engineering plastic, and it has tough resistance to
The excellent specific properties such as mill, impact resistance, endurance, corrosion-resistant, oil resistant, are widely used in auto-parts, electronic apparatus, machinery etc.
Industry, over 60 years, steady-state growth in the keen competition of engineering plastics, its demand occupies five large-engineering plastics so far always
First place.
At present, on market, the fire retardant of fiberglass reinforced PA 6 mainly has bromine antimony based flame retardant, red phosphorus combustion inhibitor, the resistance of phosphorus nitrogen system
Combustion agent etc..Although bromine antimony based flame retardant has preferable fire resistance and mechanical property, its environmental issue cannot overcome
Technical barrier；The storage of red phosphorus based flame retardant is difficult, and can only do dark product；Phosphorus-nitrogen containing flame retardant develops as current fire retardant
Direction, receive more concern.However, the phosphorus-nitrogen containing flame retardant on market has a decomposition temperature low, production cost height etc.
Problem, is extremely limited in the application of market.In prior art, have using MPP (tripolycyanamide phosphonate) flame-proof glass fibre
Strengthen the pertinent literature of PA6, but it exists that decomposition temperature is low, plastic processing performance is poor, mechanical properties decrease is seriously etc. many
Technical problem.
Content of the invention
The technical problem to be solved is to provide a kind of mechanical property good, the good halogen-free flameproof roving glass fiber of toughness
Strengthen PA6 composite.
The technical problem to be solved employs the following technical solutions to realize：
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite, is made up of the component of following parts by weight：Nylon 630-
60th, roving glass fiber 20-40, DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) 12-16, antioxidant 0.5-1, phase
Hold agent 5-10, triazine carbon forming agent 3-5, synergist 1-5, nucleator 0.5-1, UV absorbent 0.5-1, surfactant 0.5-
1st, viscosifier 1-4, chain extender 1-3, nano titanium oxide 0.5-1, nanoscale haydite powder 0.5-1, dioctyl phthalate 1-
3.
Described surfactant selects KH-550 surfactant, i.e. γ-aminopropyl triethoxysilane.
Described synergist selects quaternary alkylphosphonium salt intercalation modifying montmorillonite.
SAG-008 chain extender selected by described chain extender.
Irgasfos 168/1098 selected by described antioxidant.
Described triazine carbon forming agent selects CFA triazine carbon forming agent.
Described nucleator is selected in poly- 3- methyl butene -1, polyvinyl cyclosilane, polyvinyl cycloalkanes, poly- propane
The mixture of one or more.
Above-mentioned viscosifier are made up of the component of following weight：Ethylene glycol 80g, platinum compounds 2g, silane coupler 2g, benzene
Formic acid sodium salt 2g, Colophonium 5g, n-butyl acrylate 3g, lauryl mercaptan 3g, lac resin 4g, microwax 2g, nanoscale electricity
Gas stone powder body 3g, pure-acrylic emulsion 5g；This viscosifier is specifically designed for regeneration PA6 melt and is configured, and the speed of viscosity increasement is fast, and effect is good.
The preparation method of above-mentioned viscosifier is as follows：
(1) weigh each component by above-mentioned formula ratio, first ethylene glycol, n-butyl acrylate and lauryl mercaptan are put into
In reactor, it is heated to 50-60 DEG C, in 120-135 rev/min of rotating speed, continuous stirring 5-10 minute, obtained solution a is stand-by；
(2) benzoic acid sodium salt, Colophonium, lac resin, microwax and nano-scale tourmaline powder are added in solution a,
Heat while stirring, reach 80-90 DEG C to temperature and be incubated 2 hours, obtained solution b is stand-by；
Above-mentioned mixing speed controls at 90-110 rev/min.
(3) pure-acrylic emulsion is put in solution b, stir, mixing speed is maintained at 1200 revs/min about, stirring
30 minutes, obtained solution c was stand-by；
(4) by the temperature control of solution c at 40-45 DEG C, it is subsequently adding platinum compounds and silane coupler, stirs,
It is cooled to room temperature, go out kettle and obtain viscosifier.
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite one-step preppn process, step is as follows：
(1) by nano titanium oxide, nanoscale haydite powder, nucleator, UV absorbent, chain extender and surfactant
Send in rotary drum and carry out mix and blend, rotary drum is heated up to 80-120 DEG C, the time, pressure was in 150- at 40 minutes simultaneously
200Mpa, takes out and obtains compound；
(2) nylon and dioctyl phthalate are mixed, be transported to by mouth mould after being plastified by single screw extrusion machine
High-temperature fusant reactor, adds compound, DOPO, antioxidant, compatilizer, triazine carbon forming agent, synergist and viscosifier, keeps kettle
Temperature, under the conditions of 235～240 DEG C, pressure 2.0～2.5MPa, obtains blend melt；
(3) blend melt is sent to dipping head, the temperature of dipping head is set as 280-360 DEG C, roving glass fiber is led to
Cross dipping head die hole, after dipping, pulled out dipping head, cooling, pelletizing, the enhancing PA6 obtaining 8-15mm length is combined
Material.
The invention has the beneficial effects as follows：Instant component is relatively simple, reasonable mixture ratio, by adding nucleator, viscosifier,
Polymer heterogeneous nucleation can be made, improve rigidity, wearability and the processing characteristics of material, thus changing the intrinsic viscosity of polyester, melting
Point and its molecular chain structure, improve the quality of PA6 melt, strengthen the bulk strength of PA6 material.
Specific embodiment
In order that technological means, creation characteristic, reached purpose and effect that the present invention realizes are easy to understand, tie below
Close specific embodiment, the present invention is expanded on further.
Embodiment 1
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite, is made up of the component of following weight：Nylon 645kg, long glass
Fine 30kg, DOPO 14kg, antioxidant 0.7kg, compatilizer 7kg, triazine carbon forming agent 4kg, synergist 3kg, nucleator 0.8kg, purple
Ultraviolet absorbers 0.7kg, surfactant 0.7kg, viscosifier 2.5kg, chain extender 2kg, nano titanium oxide 0.7kg, nanometer
Level haydite powder 0.7kg, dioctyl phthalate 2kg.
Described surfactant selects KH-550 surfactant, i.e. γ-aminopropyl triethoxysilane.
Described synergist selects quaternary alkylphosphonium salt intercalation modifying montmorillonite.
SAG-008 chain extender selected by described chain extender.
Irgasfos 168 selected by described antioxidant.
Described triazine carbon forming agent selects CFA triazine carbon forming agent.
Poly- 3- methyl butene -1 selected by described nucleator.
Above-mentioned viscosifier are made up of the component of following weight：Ethylene glycol 80g, platinum compounds 2g, silane coupler 2g, benzene
Formic acid sodium salt 2g, Colophonium 5g, n-butyl acrylate 3g, lauryl mercaptan 3g, lac resin 4g, microwax 2g, nanoscale electricity
Gas stone powder body 3g, pure-acrylic emulsion 5g；This viscosifier is specifically designed for regeneration PA6 melt and is configured, and the speed of viscosity increasement is fast, and effect is good.
The preparation method of above-mentioned viscosifier is as follows：
(1) weigh each component by above-mentioned formula ratio, first ethylene glycol, n-butyl acrylate and lauryl mercaptan are put into
In reactor, it is heated to 50-60 DEG C, in 120-135 rev/min of rotating speed, continuous stirring 5-10 minute, obtained solution a is stand-by；
(2) benzoic acid sodium salt, Colophonium, lac resin, microwax and nano-scale tourmaline powder are added in solution a,
Heat while stirring, reach 80-90 DEG C to temperature and be incubated 2 hours, obtained solution b is stand-by；
Above-mentioned mixing speed controls at 90-110 rev/min.
(3) pure-acrylic emulsion is put in solution b, stir, mixing speed is maintained at 1200 revs/min about, stirring
30 minutes, obtained solution c was stand-by；
(4) by the temperature control of solution c at 40-45 DEG C, it is subsequently adding platinum compounds and silane coupler, stirs,
It is cooled to room temperature, go out kettle and obtain viscosifier.
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite one-step preppn process, step is as follows：
(1) by nano titanium oxide, nanoscale haydite powder, nucleator, UV absorbent, chain extender and surfactant
Send in rotary drum and carry out mix and blend, rotary drum is heated up to 80-120 DEG C, the time, pressure was in 150- at 40 minutes simultaneously
200Mpa, takes out and obtains compound；
(2) nylon and dioctyl phthalate are mixed, be transported to by mouth mould after being plastified by single screw extrusion machine
High-temperature fusant reactor, adds compound, DOPO, antioxidant, compatilizer, triazine carbon forming agent, synergist and viscosifier, keeps kettle
Temperature, under the conditions of 235～240 DEG C, pressure 2.0～2.5MPa, obtains blend melt；
(3) blend melt is sent to dipping head, the temperature of dipping head is set as 280-360 DEG C, roving glass fiber is led to
Cross dipping head die hole, after dipping, pulled out dipping head, cooling, pelletizing, the enhancing PA6 obtaining 8-15mm length is combined
Material.
Embodiment 2
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite, is made up of the component of following weight：Nylon66 fiber 0kg, long glass
Fine 20kg, DOPO 16kg, antioxidant 0.5kg, compatilizer 10kg, triazine carbon forming agent 3kg, synergist 5kg, nucleator 0.5kg,
UV absorbent 1kg, surfactant 0.5kg, viscosifier 4kg, chain extender 1kg, nano titanium oxide 1kg, nanoscale pottery
Grain powder 0.5kg, dioctyl phthalate 3kg.
Described surfactant selects KH-550 surfactant, i.e. γ-aminopropyl triethoxysilane.
Described synergist selects quaternary alkylphosphonium salt intercalation modifying montmorillonite.
SAG-008 chain extender selected by described chain extender.
Irgasfos 168/1098 selected by described antioxidant.
Described triazine carbon forming agent selects CFA triazine carbon forming agent.
Polyvinyl cyclosilane selected by described nucleator.
Above-mentioned viscosifier are made up of the component of following weight：Ethylene glycol 80g, platinum compounds 2g, silane coupler 2g, benzene
Formic acid sodium salt 2g, Colophonium 5g, n-butyl acrylate 3g, lauryl mercaptan 3g, lac resin 4g, microwax 2g, nanoscale electricity
Gas stone powder body 3g, pure-acrylic emulsion 5g；This viscosifier is specifically designed for regeneration PA6 melt and is configured, and the speed of viscosity increasement is fast, and effect is good.
The preparation method of above-mentioned viscosifier is as follows：
(1) weigh each component by above-mentioned formula ratio, first ethylene glycol, n-butyl acrylate and lauryl mercaptan are put into
In reactor, it is heated to 50-60 DEG C, in 120-135 rev/min of rotating speed, continuous stirring 5-10 minute, obtained solution a is stand-by；
(2) benzoic acid sodium salt, Colophonium, lac resin, microwax and nano-scale tourmaline powder are added in solution a,
Heat while stirring, reach 80-90 DEG C to temperature and be incubated 2 hours, obtained solution b is stand-by；
Above-mentioned mixing speed controls at 90-110 rev/min.
(3) pure-acrylic emulsion is put in solution b, stir, mixing speed is maintained at 1200 revs/min about, stirring
30 minutes, obtained solution c was stand-by；
(4) by the temperature control of solution c at 40-45 DEG C, it is subsequently adding platinum compounds and silane coupler, stirs,
It is cooled to room temperature, go out kettle and obtain viscosifier.
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite one-step preppn process, step is as follows：
(1) by nano titanium oxide, nanoscale haydite powder, nucleator, UV absorbent, chain extender and surfactant
Send in rotary drum and carry out mix and blend, rotary drum is heated up to 80-120 DEG C, the time, pressure was in 150- at 40 minutes simultaneously
200Mpa, takes out and obtains compound；
(2) nylon and dioctyl phthalate are mixed, be transported to by mouth mould after being plastified by single screw extrusion machine
High-temperature fusant reactor, adds compound, DOPO, antioxidant, compatilizer, triazine carbon forming agent, synergist and viscosifier, keeps kettle
Temperature, under the conditions of 235～240 DEG C, pressure 2.0～2.5MPa, obtains blend melt；
(3) blend melt is sent to dipping head, the temperature of dipping head is set as 280-360 DEG C, roving glass fiber is led to
Cross dipping head die hole, after dipping, pulled out dipping head, cooling, pelletizing, the enhancing PA6 obtaining 8-15mm length is combined
Material.
Embodiment 3
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite, is made up of the component of following weight：Nylon 630kg, long glass
Fine 40kg, DOPO (9,10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide) 12kg, antioxidant 1kg, compatilizer 5kg, three
Piperazine carbon forming agent 5kg, synergist 1kg, nucleator 1kg, UV absorbent 0.5kg, surfactant 1kg, viscosifier 1kg, expansion
Chain agent 3kg, nano titanium oxide 0.5kg, nanoscale haydite powder 1kg, dioctyl phthalate 1kg.
Described surfactant selects KH-550 surfactant, i.e. γ-aminopropyl triethoxysilane.
Described synergist selects quaternary alkylphosphonium salt intercalation modifying montmorillonite.
SAG-008 chain extender selected by described chain extender.
Antioxidant 1098 selected by described antioxidant.
Described triazine carbon forming agent selects CFA triazine carbon forming agent.
Polyvinyl cycloalkanes selected by described nucleator.
Above-mentioned viscosifier are made up of the component of following weight：Ethylene glycol 80g, platinum compounds 2g, silane coupler 2g, benzene
Formic acid sodium salt 2g, Colophonium 5g, n-butyl acrylate 3g, lauryl mercaptan 3g, lac resin 4g, microwax 2g, nanoscale electricity
Gas stone powder body 3g, pure-acrylic emulsion 5g；This viscosifier is specifically designed for regeneration PA6 melt and is configured, and the speed of viscosity increasement is fast, and effect is good.
The preparation method of above-mentioned viscosifier is as follows：
(1) weigh each component by above-mentioned formula ratio, first ethylene glycol, n-butyl acrylate and lauryl mercaptan are put into
In reactor, it is heated to 50-60 DEG C, in 120-135 rev/min of rotating speed, continuous stirring 5-10 minute, obtained solution a is stand-by；
(2) benzoic acid sodium salt, Colophonium, lac resin, microwax and nano-scale tourmaline powder are added in solution a,
Heat while stirring, reach 80-90 DEG C to temperature and be incubated 2 hours, obtained solution b is stand-by；
Above-mentioned mixing speed controls at 90-110 rev/min.
(3) pure-acrylic emulsion is put in solution b, stir, mixing speed is maintained at 1200 revs/min about, stirring
30 minutes, obtained solution c was stand-by；
(4) by the temperature control of solution c at 40-45 DEG C, it is subsequently adding platinum compounds and silane coupler, stirs,
It is cooled to room temperature, go out kettle and obtain viscosifier.
A kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite one-step preppn process, step is as follows：
(1) by nano titanium oxide, nanoscale haydite powder, nucleator, UV absorbent, chain extender and surfactant
Send in rotary drum and carry out mix and blend, rotary drum is heated up to 80-120 DEG C, the time, pressure was in 150- at 40 minutes simultaneously
200Mpa, takes out and obtains compound；
(2) nylon and dioctyl phthalate are mixed, be transported to by mouth mould after being plastified by single screw extrusion machine
High-temperature fusant reactor, adds compound, DOPO, antioxidant, compatilizer, triazine carbon forming agent, synergist and viscosifier, keeps kettle
Temperature, under the conditions of 235～240 DEG C, pressure 2.0～2.5MPa, obtains blend melt；
(3) blend melt is sent to dipping head, the temperature of dipping head is set as 280-360 DEG C, roving glass fiber is led to
Cross dipping head die hole, after dipping, pulled out dipping head, cooling, pelletizing, the enhancing PA6 obtaining 8-15mm length is combined
Material.
Main performance is tested：The product that embodiment 1-3 is produced becomes standard testing batten according to standard system (ASTM), carries out
Every test, shown in its performance test results following table.
| Test event | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Density (g/cm3) | 1.66 | 1.88 | 1.62 |
| Tensile strength (MPa) | 254 | 243 | 206 |
| Elongation at break (%) | 4.7 | 3.6 | 3.9 |
| Bending strength (MPa) | 120 | 150 | 160 |
| Bending moduluses (MPa) | 2510 | 3400 | 3150 |
| Notch impact strength (J/m) | 370 | 350 | 290 |
| Heat distortion temperature (DEG C) | 270 | 266 | 280 |
Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The technology of the industry
, it should be appreciated that the present invention is not restricted to the described embodiments, the simply explanation described in above-described embodiment and description is originally for personnel
The principle of invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes
Change and improvement both falls within scope of the claimed invention.Claimed scope by appending claims and its
Equivalent thereof.
Claims (9)
1. a kind of halogen-free flame-retardant long fiberglass reinforced PA 6 composite is it is characterised in that be made up of the component of following parts by weight：
Nylon 630-60, roving glass fiber 20-40, DOPO 12-16, antioxidant 0.5-1, compatilizer 5-10, triazine carbon forming agent 3-5, synergist
1-5, nucleator 0.5-1, UV absorbent 0.5-1, surfactant 0.5-1, viscosifier 1-4, chain extender 1-3, nanometer two
Titanium oxide 0.5-1, nanoscale haydite powder 0.5-1, dioctyl phthalate 1-3.
2. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that live in described surface
Property agent select KH-550 surfactant, i.e. γ-aminopropyl triethoxysilane.
3. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that described synergistic
Quaternary alkylphosphonium salt intercalation modifying montmorillonite is selected in agent.
4. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that described chain extension
SAG-008 chain extender is selected in agent.
5. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that described antioxygen
Irgasfos 168/1098 are selected in agent.
6. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that described triazine
Carbon forming agent selects CFA triazine carbon forming agent.
7. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that described nucleation
The mixing of one or more of poly- 3- methyl butene -1, polyvinyl cyclosilane, polyvinyl cycloalkanes, poly- propane is selected in agent
Thing.
8. halogen-free flame-retardant long fiberglass reinforced PA 6 composite according to claim 1 is it is characterised in that above-mentioned viscosifier
It is made up of the component of following weight：Ethylene glycol 80g, platinum compounds 2g, silane coupler 2g, benzoic acid sodium salt 2g, Colophonium 5g,
N-butyl acrylate 3g, lauryl mercaptan 3g, lac resin 4g, microwax 2g, nano-scale tourmaline powder 3g, pure-acrylic emulsion
5g；
The preparation method of above-mentioned viscosifier is as follows：
(1) weigh each component by above-mentioned formula ratio, first ethylene glycol, n-butyl acrylate and lauryl mercaptan are put into reaction
In kettle, it is heated to 50-60 DEG C, in 120-135 rev/min of rotating speed, continuous stirring 5-10 minute, obtained solution a is stand-by；
(2) benzoic acid sodium salt, Colophonium, lac resin, microwax and nano-scale tourmaline powder are added in solution a, while stirring
Mix side heating, reach 80-90 DEG C to temperature and be incubated 2 hours, obtained solution b is stand-by；Above-mentioned mixing speed control turn in 90-110/
Minute.
(3) pure-acrylic emulsion is put in solution b, stir, mixing speed is maintained at 1200 revs/min about, stir 30 points
Clock, obtained solution c is stand-by；
(4) by the temperature control of solution c at 40-45 DEG C, it is subsequently adding platinum compounds and silane coupler, stirs, cooling
To room temperature, go out kettle and obtain viscosifier.
9. halogen-free flame-retardant long fiberglass reinforced PA 6 composite one-step preppn process described in a kind of any one of claim 1-8, its
It is characterised by that step is as follows：
(1) nano titanium oxide, nanoscale haydite powder, nucleator, UV absorbent, chain extender and surfactant are sent into
Carry out mix and blend in rotary drum, rotary drum is heated up to 80-120 DEG C simultaneously, the time, pressure, in 150-200Mpa, took at 40 minutes
Go out to obtain compound；
(2) nylon and dioctyl phthalate are mixed, after plastifying by single screw extrusion machine, high temperature is transported to by mouth mould
Fusant reaction kettle, adds compound, DOPO, antioxidant, compatilizer, triazine carbon forming agent, synergist and viscosifier, keeps kettle temperature to exist
235～240 DEG C, under the conditions of pressure 2.0～2.5MPa, obtain blend melt；
(3) blend melt is sent to dipping head, the temperature of dipping head is set as 280-360 DEG C, roving glass fiber is passed through leaching
Stain head nib, after dipping, is pulled out dipping head, cooling, pelletizing, is obtained the enhancing PA6 composite of 8-15mm length.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114806159A (en) * | 2022-05-10 | 2022-07-29 | 苏州市安美材料科技有限公司 | Flame-retardant moisture-absorbing nylon composite material and preparation method thereof |
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| CN104448803A (en) * | 2014-12-01 | 2015-03-25 | 贵州凯科特材料有限公司 | Halogen-free flame-retardant long-fiber-reinforced nylon 6 composite material and preparation method thereof |
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