CN103012926A - Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value - Google Patents
Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value Download PDFInfo
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- CN103012926A CN103012926A CN2012105210882A CN201210521088A CN103012926A CN 103012926 A CN103012926 A CN 103012926A CN 2012105210882 A CN2012105210882 A CN 2012105210882A CN 201210521088 A CN201210521088 A CN 201210521088A CN 103012926 A CN103012926 A CN 103012926A
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Abstract
The invention discloses a flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with a high CTI value and a high GWIT value. The alloy material comprises the following components: by weight, 23 to 41% of HDPE, 22 to 41% of PA12, 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 200 to 220 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 CTI value, low precipitation performance, etc.
Description
Technical field
The present invention relates to a kind of alloy material, especially relate to a kind of high CTI value, high GWIT value flame-proof glass fibre enhancing HDPE/PA12 alloy material.
Background technology
Nylon (Nylon), the Chinese name polymeric amide, English name Polyamide (be called for short PA), be contain on the molecular backbone chain recurring amide radical group-[NHCO]-the thermoplastic resin general name.Its name is decided by the concrete carbonatoms of synthon, such 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, self lubricity and noise reduction are arranged.Low-temperature performance is good, and certain thermotolerance (can use below 100 degree) is arranged.Nontoxic, odorless, mildew and rot self-extinguishing, good weatherability are arranged, but dyeability are poor.The formal name used at school of PA12 is nylon 12, claims again nylon 12.The basic raw material of its polymerization is divinyl, can be dependent on petrochemical complex.It is hypocrystalline-crystallographic thermoplastic material.Its characteristic is similar with PA11, but crystalline structure is different.PA12 be good electrical insulators and the same with other polymeric amide can be because of the moisture effect insulating property.It has good shock resistance chemical machine stability.PA12 has many improving the breed aspect plasticizing characteristic and the enhancing characteristic.Compare with PA6 and PA66, these materials have lower fusing point and density, have very high moisture regain.High density polyethylene(HDPE) (High DensityPolyethylene is referred to as " HDPE ") is that a kind of degree of crystallinity is high, nonpolar thermoplastic resin.The milky appearance of ortho states HDPE is to a certain degree translucent in meagre cross section.PE has good anti-great majority life and the characteristic of chemicals for industrial use.The chemical of some kind can produce chemical corrosion, for example corrosive oxidation agent (concentrated nitric acid), aromatic hydrocarbon (dimethylbenzene) and halon (tetracol phenixin).This polymkeric substance is non-hygroscopic and have good steam-preventing, can be used for packing purposes.HDPE has good electrical property, and particularly dielectric strength is high, makes it be applicable to very much electric wire.In have fabulous shock resistance to the high molecular grade, at normal temperature even all like this under-40F low temperature.The HDPE/PA12 alloy material combines the advantage of bi-material.21 century, electric appliance communication equipment was to the high-performance micro development, and more and more higher to the requirement of Flame Retardant HDPE/PA12 alloy material, simultaneously, along with the understanding of the mankind to environmental protection, Green Product is subject to common concern.Therefore, Flame Retardant HDPE/PA12 alloy material developing direction is; Performance function Flame Retardant HDPE/PA12 alloy material becomes main flow; The kind of environmental type Flame Retardant HDPE/PA12 alloy material and demand are more and more; The production of Flame Retardant HDPE/PA12 alloy 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, 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
Purpose of the present invention is exactly to provide a kind of high CTI value, high GWIT value flame-proof glass fibre to strengthen the HDPE/PA12 alloy material for the defective that overcomes above-mentioned prior art existence; alloy material of the present invention has high CTI value, the low property separated out; environmental protection; over-all properties is balanced, can be widely used in the field of electronics such as contactor, earth leakage protective device, case for circuit breaker.
The present invention can be achieved through the following technical solutions:
First aspect the present invention relates to a kind of high CTI value, high GWIT value flame-proof glass fibre enhancing HDPE/PA12 alloy material, and described alloy material comprises each component of following weight percentage:
HDPE 23-41％
PA12 22-41％，
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, described HDPE is high density polyethylene(HDPE).
Preferably, described PA12 is nylon 12, and its limiting viscosity is 2.8dl/g.
Preferably, described compound flame redundant is by composite the forming of each component of following mass percent: BPS:50%, magnesium hypophosphite: 25%, and talcum powder: 25%.
Preferably, described glass fibre is alkali free glass fibre, and process through silane coupling agent on its surface.
Preferably, described compatilizer is maleic anhydride graft HDPE.
Preferably, described oxidation inhibitor is Hinered phenols antioxidant.
Preferably, described oxidation inhibitor is oxidation inhibitor 1330.
Preferably, described oxide compound is ferric oxide.
Second aspect, the invention still further relates to the preparation method of aforementioned high CTI value, high GWIT value flame-proof glass fibre enhancing HDPE/PA12 alloy material, comprise the steps: to take by weighing raw material by following weight proportion: HDPE 23-41%, PA1222-41%, 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%; Put into afterwards high-speed mixer and mixing 2-5 minute, then discharging uses the twin screw extruder extruding pelletization, and processing temperature is 200-220 ℃, and the screw rod revolution is 30-40Hz.
Compared with prior art, the present invention adopts the novel flame-retardant compound system, and in the identical situation of fire retardant percentage composition, the novel built system can make the glowing filament of material improve 50 to 100 ℃, can pass through 850 ℃ of glowing filaments.Simultaneously, the adding of glass fibre also makes the glowing filament of material significantly improve, adding compatilizer is be used to the impact property of improving material, oxidation inhibitor is that a kind of Hinered phenols antioxidant can improve alloy material in the antioxidant property of the course of processing and the ageing resistance in the use procedure, adopt ferric oxide as improving the CTI auxiliary agent, improve the materials processing flowability, reduce frictional coefficient, improve slipping, adopt dispersiveness better under specific processing conditions, the residence time is short, shears slightly weak combination, prevent that fire retardant from decomposing, thereby guaranteed the steady quality of material, it is higher that the present invention has a glow wire temperature, and it is higher to have a creepage trace index, environmental protection, over-all properties is balanced, can be widely used in the Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
Embodiment
The present invention is described in detail below in conjunction with specific embodiment.Following examples will help those skilled in the art further to understand the present invention, but not limit in any form the present invention.Should be pointed out that to those skilled in the art, without departing from the inventive concept of the premise, can also make some distortion and improvement.These all belong to protection scope of the present invention.
Embodiment 1～6
Raw material and the weight percent content thereof of embodiment 1～2 are as shown in table 1; Take by weighing described raw material by described weight percent content; Put into high-speed mixer and mixing 2～5 minutes, then discharging uses the twin screw extruder extruding pelletization, makes high CTI value, high GWIT value flame-proof glass fibre enhancing HDPE/PA12 alloy material; Wherein processing temperature is 200-220 ℃, and the screw rod revolution is 30-40Hz; Concrete processing situation is as shown in table 2, and the sample test that makes the results are shown in Table shown in 3.
Comparative Examples 1～2
Raw material and the weight percent content thereof of Comparative Examples 1～3 are as shown in table 1; Take by weighing described raw material by described weight percent content; Put into high-speed mixer and mixing 2～5 minutes, then discharging uses the twin screw extruder extruding pelletization, makes high CTI value, high GWIT value ring combustion glass enhancing HDPE/PA12 alloy material, and wherein processing temperature is 200-220 ℃, and the screw rod revolution is 30-40Hz; Concrete processing situation is as shown in table 2, and the sample test that makes the results are shown in Table shown in 3.
Table 1
Table 2
Table 3
To have a 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 the Low-voltage Electronic capacitor case, load break switch, carbon brush supports, breaker of plastic casing.
More than specific embodiments of the invention are described.It will be appreciated that the present invention is not limited to above-mentioned particular implementation, those skilled in the art can make various distortion or modification within the scope of the claims, and this does not affect flesh and blood of the present invention.
Claims (10)
1. a high CTI value, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described alloy material comprises each component of following weight percentage:
HDPE 23-41％
PA12 22-41％，
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%.
2. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described HDPE is high density polyethylene(HDPE).
3. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described PA12 is nylon 12, and its limiting viscosity is 2.8dl/g.
4. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that, described compound flame redundant is by composite the forming of each component of following mass percent: BPS:50%, magnesium hypophosphite: 25%, and talcum powder: 25%.
5. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described glass fibre is alkali free glass fibre, and process through silane coupling agent on its surface.
6. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described compatilizer is maleic anhydride graft HDPE.
7. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described oxidation inhibitor is Hinered phenols antioxidant.
8. high CTI value as claimed in claim 7, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described oxidation inhibitor is oxidation inhibitor 1330.
9. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the HDPE/PA12 alloy material, it is characterized in that described oxide compound is ferric oxide.
10. a high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen the preparation method of HDPE/PA12 alloy material, it is characterized in that, comprise the steps: to take by weighing raw material by following weight proportion: HDPE 23-41%, PA1222-41%, 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%; Put into afterwards high-speed mixer and mixing 2-5 minute, then discharging uses the twin screw extruder extruding pelletization, and processing temperature is 200-220 ℃, and the screw rod revolution is 30-40Hz.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210521088.2A CN103012926B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value |
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| CN201210521088.2A CN103012926B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced HDPE/PA12 alloy material with high CTI value and high GWIT value |
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| CN103012926A true CN103012926A (en) | 2013-04-03 |
| CN103012926B CN103012926B (en) | 2015-06-03 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103642212A (en) * | 2013-11-18 | 2014-03-19 | 安徽宜万丰电器有限公司 | Toughening oil-resistant modified nylon material for automobile plastic members |
| CN115960409A (en) * | 2022-12-27 | 2023-04-14 | 中广核俊尔(浙江)新材料有限公司 | Continuous glass fiber reinforced high-density polyethylene/nylon 12 alloy prepreg tape and preparation method thereof |
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| CN1536000A (en) * | 2003-04-07 | 2004-10-13 | 北京化工大学 | Nano inorganic composite fire-resisting agent for macromolecular material |
| CN102086301A (en) * | 2009-12-08 | 2011-06-08 | 天津德昊超微新材料有限公司 | Flame-retardant PA (Polyamide)/PE (Poly Ethylene) alloy material for electric switch |
| 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 |
| CN102732021A (en) * | 2012-07-17 | 2012-10-17 | 上海日之升新技术发展有限公司 | High CTI (Comparative Tracking Index) flame retardant glass fiber reinforced PA66 (Polyamide 66)/PE (Polyethylene) alloy composite and preparation method thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1536000A (en) * | 2003-04-07 | 2004-10-13 | 北京化工大学 | Nano inorganic composite fire-resisting agent for macromolecular material |
| CN102086301A (en) * | 2009-12-08 | 2011-06-08 | 天津德昊超微新材料有限公司 | Flame-retardant PA (Polyamide)/PE (Poly Ethylene) alloy material for electric switch |
| 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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| CN103642212A (en) * | 2013-11-18 | 2014-03-19 | 安徽宜万丰电器有限公司 | Toughening oil-resistant modified nylon material for automobile plastic members |
| CN115960409A (en) * | 2022-12-27 | 2023-04-14 | 中广核俊尔(浙江)新材料有限公司 | Continuous glass fiber reinforced high-density polyethylene/nylon 12 alloy prepreg tape and preparation method thereof |
| CN115960409B (en) * | 2022-12-27 | 2024-03-01 | 中广核俊尔(浙江)新材料有限公司 | Continuous glass fiber reinforced high-density polyethylene/nylon 12 alloy prepreg tape and preparation method thereof |
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