CN103013101B - Flame-retardant glass fiber-reinforced PA6/PA66 alloy material with high CTI value and high GWIT value - Google Patents
Flame-retardant glass fiber-reinforced PA6/PA66 alloy material with high CTI value and high GWIT value Download PDFInfo
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Abstract
The invention discloses a flame-retardant glass fiber-reinforced PA6/PA66 alloy material with a high CTI value and a high GWIT value. The alloy material comprises the following components: by weight, 22.5 to 41% of PA6, 22.5 to 41% of PA66, 6 to 20% of a compound fire retardant, 3 to 15% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 10% of a compatilizer, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of an oxide. The invention also relates to a preparation method for the alloy material, and the method comprises the following steps: weighing the components in proportion, adding the weighed components into a high-speed mixer for mixing for 2 to 5 min, then carrying out discharging and finally carrying out extrusion granulation in a twin-screw extruder, wherein processing temperature is 220 to 255 DEG C and screw revolution is 30 to 40 Hz. Compared with the prior art, the alloy material provided by the invention has the advantages of a high glow wire temperature, a high tracking index, environment-friendliness and balanced comprehensive properties and can be extensively used for low-voltage electronic capacitor shells, load break switches, carbon brush supports and molded case circuit breakers.
Description
Technical field
The present invention relates to a kind of flame-proof glass fibre and strengthen alloy material, be specifically related to a kind of high CTI value, high GWIT value flame-proof glass fibre strengthens PA6/PA66 alloy material.
Background technology
Nylon (Nylon), Chinese name polymeric amide, English name Polyamide (be called for short PA), be on molecular backbone chain containing recurring amide radical group-[NHCO]-thermoplastic resin general name.Its name is determined by the carbonatoms that synthon is concrete, as: nylon-6,66,1010,610.Its degree of crystallinity is high, fusing point is obvious, surface hardness is large, abrasion performance, frictional coefficient are little, have self lubricity and sound-deadening properties; Low-temperature performance is good, has certain thermotolerance (can use below 100 degree); Nontoxic, odorless, not go rotten, have self-extinguishing, good weatherability, but dyeability is poor.21 century, electric appliance communication electromechanical equipment was to high-performance microization development, and more and more higher to the requirement of flame-proof PA 6/PA66 alloy material, meanwhile, along with the mankind are to the understanding of environmental protection, Green Product is subject to common concern.Therefore, flame-proof PA 6/PA66 alloy material developing direction is; Performance function flame-proof PA 6/PA66 alloy material becomes main flow; The kind of environmental type flame-proof PA 6/PA66 alloy material and demand get more and more; The production of flame-proof PA 6/PA66 alloy material is to multi items seriation 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, are 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
The object of the invention is to the defect overcoming the existence of above-mentioned prior art, provide a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass to strengthen PA6/PA66 alloy material and preparation method thereof.Composition glow wire temperature (GWIT) of the present invention is higher, 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.
The object of the invention is to be achieved through the following technical solutions:
The present invention relates to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen PA6/PA66 alloy material, comprise each component of following weight percent content:
PA6 22.5-41％；
PA66 22.5-41％；
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%.
Preferably, the limiting viscosity of described PA6 is 2.8dl/g.
Preferably, described PA66 is polyhexamethylene adipamide, and its limiting viscosity is 2.8dl/g.
Preferably, described compound flame redundant comprises each component of following weight percent content: BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%.
Preferably, described glass fibre is the alkali free glass fibre of surface through silane coupling agent process.
Preferably, described compatilizer is maleic anhydride graft POE.
Preferably, described oxidation inhibitor is a kind of Hinered phenols antioxidant.
Preferably, described oxidation inhibitor is oxidation inhibitor 1330.
Preferably, described oxide compound is ferric oxide.
The invention still further relates to the preparation method of aforesaid high CTI value, high GWIT value environment-protection flame-proof fiberglass enhancing PA6/PA66 alloy material, be specially: described each component is put into high-speed mixer and mixing 2 ~ 5 minutes by weight ratio, discharging, twin screw extruder extruding pelletization, extrusion temperature is 220 ~ 255 DEG C, screw rod revolution is 30 ~ 40Hz.
Compared with prior art, the present invention has following beneficial effect:
1, adopt novel flame-retardant compound system, compare with traditional flame-retardant system, when fire retardant percentage composition is identical, novel built system can make the glowing filament of material improve 50 to 100 DEG C, can pass through 850 DEG C of glowing filaments;
2, the glass fibre added makes the glowing filament of material significantly improve;
3, the compatilizer added is for improving the impact property of material;
4, Hinered phenols antioxidant is adopted can to improve the ageing resistance of composition in the antioxidant property and use procedure of the course of processing;
5, adopt ferric oxide as raising CTI auxiliary agent, improve materials processing mobility, reduce 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.
Advantage of the present invention is that glow wire temperature (GWIT) is higher, 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.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.
comparative example 1 ~ 5
PA6/PA66 alloy composite, comprises each component of 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 ~ 6
High CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen PA6/PA66 alloy material, comprise 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: BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%;
(2) the above-mentioned raw material mixed is added twin screw extruder, extruding pelletization, both described high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen PA6/PA66 alloy material; 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 ~ 5 and embodiment 1 ~ 6
Table 2
embodiment 7, performance test
Adopt ASTM standard, to the PA6/PA66 alloy combination matter sample that embodiment 1 ~ 6 and comparative example 1 ~ 5 obtain, carry out performance test comparison.Test performance contrast is as shown in table 3:
Table 3
As shown in Table 3, embodiment 1 is compared with comparative example 1,2,3, it is higher that inventive samples has glow wire temperature (GWIT), have creepage trace index higher (CTI), environmental protection, over-all properties is balanced, be widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
Above specific embodiments of the invention are described.It is to be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or amendment within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (7)
1. high CTI value, high GWIT value flame-proof glass fibre strengthen a PA6/PA66 alloy material, and it is characterized in that, said composition comprises each component of following weight percent content:
Described compound flame redundant comprises each component of following weight percent content: BPS:50%; Magnesium hypophosphite: 25%; Talcum powder: 25%, described oxide compound is ferric oxide; Described compatilizer is maleic anhydride graft POE.
2. high CTI value according to claim 1, high GWIT value flame-proof glass fibre strengthen PA6/PA66 alloy material, and it is characterized in that, the limiting viscosity of described PA6 is 2.8dl/g.
3. high CTI value according to claim 1, high GWIT value flame-proof glass fibre strengthen PA6/PA66 alloy material, and it is characterized in that, described PA66 is polyhexamethylene adipamide, and its limiting viscosity is 2.8dl/g.
4. high CTI value according to claim 1, high GWIT value flame-proof glass fibre strengthen PA6/PA66 alloy material, it is characterized in that, described glass fibre is the alkali free glass fibre of surface through silane coupling agent process.
5. high CTI value according to claim 1, high GWIT value flame-proof glass fibre strengthen PA6/PA66 alloy material, and it is characterized in that, described oxidation inhibitor is a kind of Hinered phenols antioxidant.
6. high CTI value according to claim 5, high GWIT value flame-proof glass fibre strengthen PA6/PA66 alloy material, and it is characterized in that, described oxidation inhibitor is oxidation inhibitor 1330.
7. a high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the preparation method of PA6/PA66 alloy material, it is characterized in that, described preparation method is specially: described each component is put into high-speed mixer and mixing 2 ~ 5 minutes by weight ratio, discharging, twin screw extruder extruding pelletization, extrusion temperature is 220 ~ 255 DEG C, and screw rod revolution is 30 ~ 40Hz.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210521063.2A CN103013101B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced PA6/PA66 alloy material with high CTI value and high GWIT value |
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| CN201210521063.2A CN103013101B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced PA6/PA66 alloy material with high CTI value and high GWIT value |
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| CN103013101B true CN103013101B (en) | 2015-06-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103319885A (en) * | 2013-07-23 | 2013-09-25 | 广东顺德顺炎新材料有限公司 | Flame-retardant non-reinforced nylon with high glow wire and high CTI (comparative tracking index) value, and preparation method thereof |
| CN104672887A (en) * | 2013-12-02 | 2015-06-03 | 上海凯波特种电缆料厂有限公司 | Flame-retardant low-temperature-resistant nylon for ultra-thin wall cable sheath layer and preparation method of nylon |
| 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 |
| CN105623256A (en) * | 2016-03-04 | 2016-06-01 | 广西华锑科技有限公司 | High-toughness antimony system compound flame retardant nylon material and preparation method thereof |
| CN111315810A (en) | 2017-10-17 | 2020-06-19 | 塞拉尼斯销售德国有限公司 | Flame retardant polyamide composition |
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| CN101688017A (en) * | 2007-07-13 | 2010-03-31 | 意特麦琪化工有限公司 | Halogen-free flame retardant additive |
| CN101760016A (en) * | 2008-11-21 | 2010-06-30 | 上海普利特复合材料股份有限公司 | Flame-retarded enhanced PA66 composite special for wire connector box |
| CN102108187A (en) * | 2009-12-28 | 2011-06-29 | 上海日之升新技术发展有限公司 | High glowing filament environmental-friendly inflaming retarding reinforced polybutylece terephthalate (PBT)/acrylonitrile butadiene styrene (ABS) alloy material and preparation method thereof |
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