CN102952397B - Environment-friendly flame-retardant glass fiber reinforced PA6 (Polyamide 6) material and preparation method thereof - Google Patents
Environment-friendly flame-retardant glass fiber reinforced PA6 (Polyamide 6) material and preparation method thereof Download PDFInfo
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- CN102952397B CN102952397B CN201210516027.7A CN201210516027A CN102952397B CN 102952397 B CN102952397 B CN 102952397B CN 201210516027 A CN201210516027 A CN 201210516027A CN 102952397 B CN102952397 B CN 102952397B
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Abstract
The invention relates to an environment-friendly flame-retardant glass fiber reinforced PA6 (Polyamide 6) material and a preparation method thereof. The environment-friendly flame-retardant glass fiber reinforced PA6 material is prepared from the following components in parts by weight: 45-82 parts of PA6, 6-20 parts of compound flame retardant, 3-15 parts of antimony trioxide, 20-30 parts of glass fiber, 2-10 parts of compatilizer, 0.1-1 part of antioxidant and 0.1-1 part of oxide. The method comprises the following steps of: weighing raw materials according to a formula, and putting into a highly mixing machine for mixing for 2-5 minutes; and discharging, and extruding and pelletizing by using a double-screw extruder to obtain the environment-friendly flame-retardant glass fiber reinforced PA6 material. Compared with the prior art, the environment-friendly flame-retardant glass fiber reinforced PA6 material has the advantages of high glowing filament ignition temperature (GWIT), environment friendliness, balanced comprehensive performance, high CTI (Comparative Tracking Index) value, high GWIT value and the like.
Description
Technical field
The present invention relates to a kind ofly, especially relate to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass and strengthen PA6 material and preparation method thereof.
Background technology
Nylon (Nylon), Chinese name polymeric amide, English name Polyamide (be called for short PA), be on molecular backbone chain, contain recurring amide radical group-[NHCO]-thermoplastic resin general name.Its name is determined by the concrete carbonatoms of synthon, as: nylon-6,66,1010,610. its degree of crystallinity are high, fusing point is obvious; Surface hardness is large, abrasion performance, frictional coefficient are little, have self lubricity and noise reduction.Low-temperature performance is good, has certain thermotolerance (can use below 100 degree).Nontoxic, odorless, mildew and rot, have self-extinguishing, good weatherability, but dyeability is poor.21 century, electric appliance communication electromechanical equipment developed to high-performance microization, and more and more higher to the requirement of flame-proof PA 6 material, meanwhile, along with the understanding of the mankind to environmental protection, Green Product is subject to common concern.Therefore, flame-proof PA 6 Materials direction is; Performance function flame-proof PA 6 material becomes main flow; The kind of environmental type flame-proof PA 6 material and demand are more and more; The production of flame-proof PA 6 material is to many variety series future development; The use diversification of fire retardant, compound development.Some traditional modes are (GF+ TDE+antimonous oxide) compound system, (GF+ brominated Polystyrene+antimonous oxide) compound system, but the CTI value of these compound systems and GWIT value are not high, be not suitable for the power utilization environment of high request.This material is applicable to Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
Summary of the invention
Object of the present invention is exactly to provide a kind of glow wire temperature higher in order to overcome the defect of above-mentioned prior art existence, environmental protection, and the high CTI value of over-all properties equilibrium, high GWIT value environment-protection flame-proof fiberglass strengthen PA6 material and preparation method thereof.
Object of the present invention can be achieved through the following technical solutions:
Environment-protection flame-proof fiberglass strengthens a PA6 material, is prepared: PA645-82, compound flame redundant 6-20, antimonous oxide 3-15, glass fibre 20-30, compatilizer 2-10, oxidation inhibitor 0.1-1, oxide compound 0.1-1 by following component and weight part content.
Described PA6 is commercially available polyamide 6, and its limiting viscosity is 2.8dl/g.
Described compound flame redundant is mixed by three kinds of components, and its mass percent is BPS:50%, magnesium hypophosphite; 25%, talcum powder: 25%.
Described glass fibre is the alkali free glass fibre that process through silane coupling agent on surface.
Described compatilizer is commercially available maleic anhydride graft POE.
Described oxidation inhibitor is high molecular weight hindered phenols kind antioxidant, selects oxidation inhibitor 1330.
Described oxide compound is ferric oxide.
Environment-protection flame-proof fiberglass strengthens the preparation method of PA6 material, and the method is put into high-speed mixer and mixing 2-5 minute after taking raw material by formula, uses twin screw extruder extruding pelletization after discharging, prepares environment-protection flame-proof fiberglass and strengthens PA6 material.
The processing temperature of described twin screw extruder is at 200-230 ℃, and screw rod revolution is at 300-400rpm.
Compared with prior art, the present invention adopts novel flame-retardant compound system, compares with traditional flame-retardant system, and in the situation that fire retardant percentage composition is identical, novel built system can make the glowing filament of material improve 50 to 100 ℃, can pass through 850 ℃ of glowing filaments.Simultaneously, adding of glass fibre also makes the glowing filament of material significantly improve, adding compatilizer is for improving the impact property of material, oxidation inhibitor is that a kind of Hinered phenols antioxidant can improve composition in the antioxidant property of the course of processing and the ageing resistance in use procedure, adopt ferric oxide as improving CTI auxiliary agent, improve materials processing mobility, reduce frictional coefficient, improve slipping, under specific processing conditions, adopt dispersiveness better, the residence time is short, shears slightly weak combination, prevent that fire retardant from decomposing, thereby guaranteed the steady quality of material.
Advantage of the present invention is that to have glow wire temperature (GWIT) higher, has creepage trace index higher (CTI), environmental protection, and over-all properties is balanced, can be widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in detail.
Comparative example 1-5 and embodiment 1-2
The formula for raw stock of comparative example 1-5 and embodiment 1-2 is as follows, material content by weight:
Said components is put into high-speed mixer and mixing 2-5 minute in proportion, and discharging, then uses screw extrusion press extruding pelletization, and processing temperature is at 200-230 ℃, and screw rod revolution is at 300-400rpm.
The sample making according to comparative example 1-5 and embodiment 1-2, carries out performance test contrast, adopts ASTM standard.
Test performance contrast is as shown in the table:
To have glow wire temperature (GWIT) higher for sample of the present invention as can be seen from the above table, has creepage trace index higher (CTI), environmental protection, over-all properties is balanced, is widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
Embodiment 3
A kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen the preparation method of PA6 material, it is characterized in that, the method is as follows: take by weight ratio raw material: PA644.5%, compound flame redundant 20%, antimonous oxide 4.8%, glass fibre 20%, commercially available maleic anhydride graft POE10%, oxidation inhibitor (1330) 0.1%, ferric oxide 0.6%; Put into high-speed mixer and mixing 2 minutes, discharging, then uses twin screw extruder extruding pelletization, and processing temperature is at 230 ℃, and screw rod revolution is at 300rpm.
Described compound flame redundant, You Wo company is composite voluntarily, by three kinds of components, is mixed, and its mass percent is BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Embodiment 4
A kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen the preparation method of PA6 material, it is characterized in that, the method is as follows: take by weight ratio raw material: PA666%, compound flame redundant 6%, antimonous oxide 3%, glass fibre 21%, commercially available maleic anhydride graft POE 2%, oxidation inhibitor (1330) 1%, ferric oxide 1%; Put into high-speed mixer and mixing 5 minutes, discharging, then uses twin screw extruder extruding pelletization, and processing temperature is at 220 ℃, and screw rod revolution is at 400rpm.
Described compound flame redundant, You Wo company is composite voluntarily, by three kinds of components, is mixed, and its mass percent is BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Described glass fibre is alkali free glass fibre, and glass fibre is added in silane coupling agent, and its surface is processed through silane coupling agent.
Embodiment 5
A kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen the preparation method of PA6 material, it is characterized in that, the method is as follows: take by weight ratio raw material: PA646%, compound flame redundant 6%, antimonous oxide 15%, glass fibre 30%, commercially available maleic anhydride graft POE2%, oxidation inhibitor (1330) 0.5%, ferric oxide 0.5%; Put into high-speed mixer and mixing 3 minutes, discharging, then uses twin screw extruder extruding pelletization, and processing temperature is at 200 ℃, and screw rod revolution is at 350rpm.
Described compound flame redundant, You Wo company is composite voluntarily, by three kinds of components, is mixed, and its mass percent is BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Embodiment 6
A kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen the preparation method of PA6 material, it is characterized in that, the method is as follows: take by weight ratio raw material: PA666%, compound flame redundant 6%, antimonous oxide 4%, glass fibre 20%, commercially available maleic anhydride graft POE3%, oxidation inhibitor (1330) 0.8%, ferric oxide 0.7%; Put into high-speed mixer and mixing 3 minutes, discharging, then uses twin screw extruder extruding pelletization, and processing temperature is at 213 ℃, and screw rod revolution is at 400rpm.
Described compound flame redundant, You Wo company is composite voluntarily, by three kinds of components, is mixed, and its mass percent is BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Embodiment 7
A kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen the preparation method of PA6 material, it is characterized in that, the method is as follows: take by weight ratio raw material: PA682, compound flame redundant 6, antimonous oxide 5, glass fibre 25%, commercially available maleic anhydride graft POE 5%, oxidation inhibitor (1330) 0.2%, ferric oxide 0.3%; Put into high-speed mixer and mixing 3 minutes, discharging, then uses twin screw extruder extruding pelletization, and processing temperature is at 210 ℃, and screw rod revolution is at 400rpm.
Described compound flame redundant, You Wo company is composite voluntarily, by three kinds of components, is mixed, and its mass percent is BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Claims (8)
1. environment-protection flame-proof fiberglass strengthens a PA6 material, it is characterized in that, this material is prepared by following component and weight part content: PA6 45-82, compound flame redundant 6-20, antimonous oxide 3-15, glass fibre 20-30, compatilizer 2-10, oxidation inhibitor 0.1-1, oxide compound 0.1-1; Described compound flame redundant is mixed by three kinds of components, and its mass percent is BPS:50%, magnesium hypophosphite: 25%, talcum powder: 25%.
2. a kind of environment-protection flame-proof fiberglass according to claim 1 strengthens PA6 material, it is characterized in that, described PA6 is commercially available polyamide 6, and its limiting viscosity is 2.8dl/g.
3. a kind of environment-protection flame-proof fiberglass according to claim 1 strengthens PA6 material, it is characterized in that, described glass fibre is the alkali free glass fibre that process through silane coupling agent on surface.
4. a kind of environment-protection flame-proof fiberglass according to claim 1 strengthens PA6 material, it is characterized in that, described compatilizer is commercially available maleic anhydride graft POE.
5. a kind of environment-protection flame-proof fiberglass according to claim 1 strengthens PA6 material, it is characterized in that, described oxidation inhibitor is high molecular weight hindered phenols kind antioxidant, selects oxidation inhibitor 1330.
6. a kind of environment-protection flame-proof fiberglass according to claim 1 strengthens PA6 material, it is characterized in that, described oxide compound is ferric oxide.
7. as described in any one in claim 1-6, environment-protection flame-proof fiberglass strengthens the preparation method of PA6 material, it is characterized in that, the method is put into high-speed mixer and mixing 2-5 minute after taking raw material by formula, after discharging, use twin screw extruder extruding pelletization, prepare environment-protection flame-proof fiberglass and strengthen PA6 material.
8. a kind of environment-protection flame-proof fiberglass according to claim 7 strengthens the preparation method of PA6 material, it is characterized in that, the processing temperature of described twin screw extruder is at 200-230 ℃, and screw rod revolution is at 300-400rpm.
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| CN201210516027.7A CN102952397B (en) | 2012-12-05 | 2012-12-05 | Environment-friendly flame-retardant glass fiber reinforced PA6 (Polyamide 6) material and preparation method thereof |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102040827A (en) * | 2009-10-22 | 2011-05-04 | 上海日之升新技术发展有限公司 | Environmentally-friendly flame-retardant reinforced PA66 composite material of high glowing filament and preparation method thereof |
| CN102575100A (en) * | 2009-09-14 | 2012-07-11 | 三菱瓦斯化学株式会社 | Flame-retardant polyamide resin composition |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102575100A (en) * | 2009-09-14 | 2012-07-11 | 三菱瓦斯化学株式会社 | Flame-retardant polyamide resin composition |
| CN102040827A (en) * | 2009-10-22 | 2011-05-04 | 上海日之升新技术发展有限公司 | Environmentally-friendly flame-retardant reinforced PA66 composite material of high glowing filament and preparation method thereof |
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