CN103012923B - Flame-retardant glass fiber-reinforced HDPE material with high CTI value and high GWIT value - Google Patents
Flame-retardant glass fiber-reinforced HDPE material with high CTI value and high GWIT value Download PDFInfo
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- CN103012923B CN103012923B CN201210521071.7A CN201210521071A CN103012923B CN 103012923 B CN103012923 B CN 103012923B CN 201210521071 A CN201210521071 A CN 201210521071A CN 103012923 B CN103012923 B CN 103012923B
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Abstract
The invention discloses a flame-retardant glass fiber-reinforced HDPE material with a high CTI value and a high GWIT value. The alloy material comprises the following components: by weight, 45 to 65% of HDPE, 6 to 15% of a compound fire retardant, 3 to 10% of antimonony oxide, 20 to 30% of a glass fiber, 2 to 9% of a compatilizer, 0.1 to 1% of an anti-oxidant and 0.1 to 1% of an oxide. A preparation method for the HDPE material 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. The HDPE material provided by the invention has the advantages of a high CTI value, a high GWIT value, 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 HDPE material, relate to a kind of high CTI value particularly, high GWIT value flame-proof glass fibre strengthens HDPE material.
Background technology
High density polyethylene(HDPE) (High Density Polyethylene, referred to as " HDPE ") is high, the nonpolar thermoplastic resin of a kind of degree of crystallinity.The milky appearance of ortho states HDPE, translucent in meagre cross section in a certain degree.PE has excellent resistance to great majority life and the characteristic of chemicals for industrial use.The chemical of some kind can produce chemical corrosion, such as corrosive oxidation agent (concentrated nitric acid), aromatic hydrocarbon (dimethylbenzene) and halon (tetracol phenixin).Non-hygroscopic and the steam-preventing had of this polymkeric substance, can be used for packing purposes.HDPE has good electrical property, and particularly dielectric strength is high, makes it be applicable to electric wire very much, in high molecular weight grades, there is fabulous shock resistance, even all like this under-40F low temperature at normal temperature.21 century, electronics, electrically, communication, household electrical appliances and electromechanical equipment to high-performance microization development, more and more higher to the requirement of Flame Retardant HDPE material, meanwhile, along with the mankind are to the understanding of environmental protection, Green Product is subject to common concern.Therefore, Flame Retardant HDPE Materials direction is: performance function Flame Retardant HDPE material becomes main flow; The kind of environmental type Flame Retardant HDPE material and demand get more and more; The production of Flame Retardant HDPE 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 (creepage trace index) and GWIT value (glow wire temperature) not high, be not suitable for the power utilization environment of high request.
Summary of the invention
Object of the present invention is exactly provide a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass enhancing HDPE material and preparation method thereof to overcome defect that above-mentioned prior art exists.Advantage of the present invention has high CTI value and high GWIT value, environmental protection, and over-all properties is balanced, can be widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports and breaker of plastic casing.
First object of the present invention is achieved through the following technical solutions, a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthen HDPE material, each component of described HDPE material and the weight percent content of each component thereof are: HDPE 45 ~ 65%, compound flame redundant 6 ~ 15%, antimonous oxide 3 ~ 10%, glass fibre 20 ~ 30%, compatilizer 2 ~ 9%, oxidation inhibitor 0.1 ~ 1%, oxide compound 0.1 ~ 1%.
Preferably, the component of described compound flame redundant and the weight percent content of each component thereof are: 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 HDPE.
Preferably, described oxidation inhibitor is high molecular weight hindered phenols kind antioxidant, and further preferably, described oxidation inhibitor is oxidation inhibitor 1330.
Preferably, described oxide compound is ferric oxide.
Another object of the present invention is achieved through the following technical solutions, a kind of method preparing above-mentioned high CTI value, high GWIT value environment-protection flame-proof fiberglass enhancing HDPE material, said method comprising the steps of: take each component by following component and weight percent content thereof: HDPE 45 ~ 65%, compound flame redundant 6 ~ 15%, antimonous oxide 3 ~ 10%, glass fibre 20 ~ 30%, compatilizer 2 ~ 9%, oxidation inhibitor 0.1 ~ 1%, oxide compound 0.1 ~ 1%; Put into high-speed mixer and mixing 2 ~ 5 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 200 ~ 220 DEG C, and screw rod revolution is at 30 ~ 40Hz.
Compared with prior art, the present invention has following beneficial effect: the present invention adopts novel flame-retardant compound system, compare with traditional flame-retardant system, when fire retardant degree 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; Meanwhile, the glowing filament of material is also made significantly to improve adding of glass fibre; Adding compatilizer is impact property for improving material; Oxidation inhibitor is a kind of Hinered phenols antioxidant, can improve the ageing resistance of composition in the antioxidant property and use procedure of the course of processing; Adopt ferric oxide as raising CTI auxiliary agent, improve materials processing mobility, reduce frictional coefficient, improve slipping, adopt under specific processing conditions good dispersity, the residence time short, shear weak combination, prevent fire retardant from decomposing, thus ensure that the steady quality of material.Advantage of the present invention has high CTI value and high GWIT value, environmental protection, and over-all properties is balanced, can be widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports and 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.
embodiment 1
The present embodiment relates to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthens HDPE material and preparation method thereof.
Each component of described HDPE material and the weight percent content of each component thereof are: HDPE 63%, compound flame redundant 6%, antimonous oxide 8.8%, glass fibre 20%, maleic anhydride graft HDPE 2%, oxidation inhibitor (1330) 0.1%, ferric oxide 0.1%.
The preparation method of described HDPE material comprises the following steps: take each component by following component and weight percent content thereof: HDPE 63%, compound flame redundant 6%, antimonous oxide 8.8%, glass fibre 20%, maleic anhydride graft HDPE 2%, oxidation inhibitor (1330) 0.1%, ferric oxide 0.1%; Put into high-speed mixer and mixing 2 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 220 DEG C, and screw rod revolution is at 30Hz; Screw extrusion press each section of temperature is as shown in table 2.
Described compound flame redundant is mixed by three kinds of components, and the weight percent content of each component is: BPS 50%, magnesium hypophosphite 25%, talcum powder 25%.
embodiment 2
The present embodiment relates to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthens HDPE material and preparation method thereof.
Each component of described HDPE material and the weight percent content of each component thereof are: HDPE 64%, compound flame redundant 7%, antimonous oxide 3%, glass fibre 21%, maleic anhydride graft HDPE 3%, oxidation inhibitor (1330) 1%, ferric oxide 1%.
The preparation method of described HDPE material comprises the following steps: take each component by following component and weight percent content thereof: HDPE 64%, compound flame redundant 7%, antimonous oxide 3%, glass fibre 21%, maleic anhydride graft HDPE3%, oxidation inhibitor (1330) 1%, ferric oxide 1%; Put into high-speed mixer and mixing 5 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 200 DEG C, and screw rod revolution is at 40Hz; Screw extrusion press each section of temperature is as shown in table 2.
Described compound flame redundant is mixed by three kinds of components, and the weight percent content of each component is: BPS 50%, magnesium hypophosphite 25%, talcum powder 25%.
Described glass fibre is alkali free glass fibre, is added by glass fibre in silane coupling agent, makes its surface through silane coupling agent process.
embodiment 3
The present embodiment relates to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthens HDPE material and preparation method thereof.
Each component of described HDPE material and the weight percent content of each component thereof are: HDPE 50%, compound flame redundant 8%, antimonous oxide 5%, glass fibre 30%, maleic anhydride graft HDPE 6%, oxidation inhibitor (1330) 0.5%, ferric oxide 0.5%.
The preparation method of described HDPE material comprises the following steps: take each component by following component and weight percent content thereof: HDPE 50%, compound flame redundant 8%, antimonous oxide 5%, glass fibre 30%, maleic anhydride graft HDPE6%, oxidation inhibitor (1330) 0.5%, ferric oxide 0.5%; Put into high-speed mixer and mixing 3 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 210 DEG C, and screw rod revolution is at 35Hz; Screw extrusion press each section of temperature is as shown in table 2.
Described compound flame redundant is mixed by three kinds of components, and the weight percent content of each component is: BPS 50%, magnesium hypophosphite 25%, talcum powder 25%.
embodiment 4
The present embodiment relates to a kind of high CTI value, high GWIT value environment-protection flame-proof fiberglass strengthens HDPE material and preparation method thereof.
Each component of described HDPE material and the weight percent content of each component thereof are: HDPE 45%, compound flame redundant 15%, antimonous oxide 10%, glass fibre 20%, maleic anhydride graft HDPE 9%, oxidation inhibitor (1330) 0.4%, ferric oxide 0.6%.
The preparation method of described HDPE material comprises the following steps: take each component by following component and weight percent content thereof: HDPE 45%, compound flame redundant 15%, antimonous oxide 10%, glass fibre 20%, maleic anhydride graft HDPE 9%, oxidation inhibitor (1330) 0.4%, ferric oxide 0.6%; Put into high-speed mixer and mixing 3 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 220 DEG C, and screw rod revolution is at 38Hz; Screw extrusion press each section of temperature is as shown in table 2.
Described compound flame redundant is mixed by three kinds of components, and the weight percent content of each component is: BPS 50%, magnesium hypophosphite 25%, talcum powder 25%.
comparative example 1 ~ 3
Comparative example 1 ~ 3 each provides a kind of HDPE material, and the weight percent content of its component and each component is as shown in table 1, and preparation method is with embodiment 1; Screw extrusion press each section of temperature is as shown in table 2.
The component of the HDPE material in table 1 comparative example 1 ~ 3 and embodiment 1 ~ 4 and content
Screw extrusion press each section of temperature in HDPE material preparation method in table 2 comparative example 1 ~ 3 and embodiment 1 ~ 4
implementation result
Get comparative example 1 ~ 3 and the obtained HDPE material of embodiment 1 ~ 4, ASTM standard is adopted to carry out performance test comparison, properties test comparison is as shown in table 3, the sample that as can be seen from Table 3 prepared by the present invention has high GWIT value and high CTI value, environmental protection, over-all properties is balanced, is widely used in Low-voltage Electronic capacitor case, load break switch, carbon brush supports and breaker of plastic casing.
HDPE material the performance test results (ASTM standard) in table 3 comparative example 1 ~ 3 and embodiment 1 ~ 4
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 (4)
1. a high CTI value, high GWIT value flame-proof glass fibre strengthen HDPE material, it is characterized in that, each component of described HDPE material and the weight percent content of each component thereof are: HDPE 45 ~ 65%, compound flame redundant 6 ~ 15%, antimonous oxide 3 ~ 10%, glass fibre 20 ~ 30%, compatilizer 2 ~ 9%, oxidation inhibitor 0.1 ~ 1%, oxide compound 0.1 ~ 1%; The component of described compound flame redundant and the weight percent content of each component thereof are: BPS 50%, magnesium hypophosphite 25%, talcum powder 25%; Described glass fibre is the alkali free glass fibre of surface through silane coupling agent process; Described compatilizer is maleic anhydride graft HDPE; Described oxide compound is ferric oxide.
2. high CTI value as claimed in claim 1, high GWIT value flame-proof glass fibre strengthen HDPE material, and it is characterized in that, described oxidation inhibitor is high molecular weight hindered phenols kind antioxidant.
3. high CTI value as claimed in claim 2, high GWIT value flame-proof glass fibre strengthen HDPE material, and it is characterized in that, described oxidation inhibitor is oxidation inhibitor 1330.
4. the method that a kind is prepared high CTI value according to claim 1, high GWIT value flame-proof glass fibre strengthens HDPE material, it is characterized in that, said method comprising the steps of: take each component by following component and weight percent content thereof: HDPE45 ~ 65%, compound flame redundant 6 ~ 15%, antimonous oxide 3 ~ 10%, glass fibre 20 ~ 30%, compatilizer 2 ~ 9%, oxidation inhibitor 0.1 ~ 1%, oxide compound 0.1 ~ 1%; Put into high-speed mixer and mixing 2 ~ 5 minutes, discharging, then use twin screw extruder extruding pelletization, processing temperature is at 200 ~ 220 DEG C, and screw rod revolution is at 30 ~ 40Hz.
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|---|---|---|---|
| CN201210521071.7A CN103012923B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced HDPE material with high CTI value and high GWIT value |
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| CN201210521071.7A CN103012923B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced HDPE material with high CTI value and high GWIT value |
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| CN103012923A CN103012923A (en) | 2013-04-03 |
| CN103012923B true CN103012923B (en) | 2015-06-03 |
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| CN201210521071.7A Expired - Fee Related CN103012923B (en) | 2012-12-06 | 2012-12-06 | Flame-retardant glass fiber-reinforced HDPE material with high CTI value and high GWIT value |
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| GB201807302D0 (en) * | 2018-05-03 | 2018-06-20 | Addivant Switzerland Gmbh | Antidegradant blend |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887947A (en) * | 2006-08-03 | 2007-01-03 | 上海交通大学 | Prepn of composite polyethylene/glass material |
| 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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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1887947A (en) * | 2006-08-03 | 2007-01-03 | 上海交通大学 | Prepn of composite polyethylene/glass material |
| 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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