CN105206952A - Glass fiber reinforced plastic casing - Google Patents
Glass fiber reinforced plastic casing Download PDFInfo
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- CN105206952A CN105206952A CN201510681272.7A CN201510681272A CN105206952A CN 105206952 A CN105206952 A CN 105206952A CN 201510681272 A CN201510681272 A CN 201510681272A CN 105206952 A CN105206952 A CN 105206952A
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Abstract
The invention provides a glass fiber reinforced plastic casing used for a cable joint. The glass fiber reinforced plastic casing comprises an upper casing and a lower casing, wherein the upper casing comprises five working parts which are connected into a whole and are sequentially arranged, the diameters of both the first and fifth working parts are decreased progressively from inside to outside, the first working part is longer than the fifth working parts, both the second and fourth working parts are closed up, the third working part is cylindrical, and at least a glue filling opening and at least a connection port are arranged on one side of the third working part; the lower casing is arranged relative to the upper casing and is hermetically connected with the upper casing; both the upper casing and the lower casing are made of a flame-retardant material, glass fiber reinforced plastic; the flame-retardant material, glass fiber reinforced plastic, comprises components in weight parts as follows: 24-32 parts of dichloro maleic anhydride, 18-23 parts of dicyclopentadiene, 52-60 parts of tetrabromo-phthalandione, 20-24 parts of bromo-propanediol, 15-22 parts of short chopped glass fibers, 32-45 parts of nano SiC, 2-4 parts of cobalt naphthenate, 3-12 parts of fire retardant, and 16-21 parts of methacrylic acid diester. The glass fiber reinforced plastic casing has the advantages of reasonable design, good sealability, good insulativity and high flame resistance.
Description
Technical field
The invention belongs to technical field of electricity, relate to a kind of glass fibre reinforced plastics casing, particularly a kind of glass fibre reinforced plastics casing being applicable to intermediate joint of electric cable.
Background technology
In daily life, when growing the installation of distance wiring or power cable, the means connected together by two power cables usually can be adopted to improve the length of cable.
In prior art, the general connection work adopting intermediate joint of electric cable to realize power cable, after cable joint installs, for ensureing the sealing property of joint, mechanical strength and electric insulating quality, requires to install protecting sheathing additional outside joint.But existing most of protecting sheathing structural design is unreasonable, and its sealing is not good, causes electric insulation effect undesirable, reduces the stability of power cable work.
The protecting sheathing of power cable and transition joint thereof is exposed in severe external environment condition more; month after month being in throughout the year and exposing to wind and rain and during the sun is exposed to the sun; and due to its special electric circumstance, protecting sheathing needs to use material durable in use, electrical insulation properties good and fire resistance is good.In prior art, protecting sheathing made by normal plastics or the fiberglass of adopting, but the flame retardant effect of existing plastics or glass fiber reinforced plastics product and durability are not all very good.Protecting sheathing needs the pitch of injection heating after installing, to improve water resistance and the mechanical strength of joint, but the uniformity of more difficult grasp pitch cast during operation, insulation property and mechanical strength may be affected.
In sum, the glass fibre reinforced plastics casing designing a kind of reasonable in design, sealing property, insulation property and good flame resistance is needed.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of reasonable in design, sealing property, insulation property and good flame resistance and the convenient glass fibre reinforced plastics casing for intermediate joint of electric cable installing cast.
Object of the present invention realizes by following technical proposal: a kind of glass fibre reinforced plastics casing, comprising:
Upper shell, by to be connected as a single entity and the first operate portions set gradually, the second operate portions, the 3rd operate portions, the 4th operate portions, the 5th operate portions are formed, the diameter of described first operate portions, the 5th operate portions successively decreases all from the inside to the outside, the length of described first operate portions is greater than the length of the 5th operate portions, described second operate portions, the 4th operate portions are all arranged in closing in, described 3rd operate portions is that semicircular cylinder is arranged, and the side of described 3rd operate portions is provided with at least one encapsulating mouth and at least one connection jaws;
Lower house, is oppositely arranged with upper shell and is tightly connected with upper shell, and after installation, the corresponding position of lower house surrounds formation loop configuration in the corresponding operate portions of upper shell;
Described upper shell and lower house are made by anti-flammability glass-reinforced plastic material.
Described anti-flammability glass-reinforced plastic material comprises the component of following weight portion: dichloro maleic anhydride 24-32 part, dicyclopentadiene 18-23 part tetrabormated phthalic acid 52-60 part, bromo propylene glycol 20-24 part, chopped glass fiber 15-22 part, nano SiC 32-45 part, cobalt naphthenate 2-4 part, fire retardant 3-12 part, metering system acid diester 16-21 part.
The present invention selects modified unsaturated polyester (UP) glass steel to prepare material as upper shell and lower house, modified unsaturated polyester fiberglass adds dicyclopentadiene when synthesizing, monomer energy end-blocking in time when polycondensation of unsaturated polyester (UP), the unsaturated polyester (UP) long strand relative molecular weight suitable size formed, system viscosity is suitable, thus make the unsaturated polyester (UP) obtained have good mobility, conveniently make glass fiber reinforced plastics product, the transparency is good, facilitate the cast of pitch after making upper shell and lower house, make cast even.Unsaturated polyester (UP) of the present invention adopts monomer polycondensation that is brominated or chlorine to form, brominated monomer and chloride combination of monomers use, the content of halogen of unsaturated polyester (UP) is high, under the high temperature conditions, halogen in polymer forms hydrogen halide, it is non-flammable compressive gas, have dilution effect, it covers Polymer Surface, can completely cut off air and heat, play blanketing effect, and halogenation Hydrogen Energy suppresses the chain reaction of high polymer burning, plays scavenging free radicals, suppress the chain reaction of burning, slow down burning rate, makes fray-out of flame.Therefore the unsaturated polyester (UP) in the present invention inherently has good flame retardant effect, avoids additional flame retardant amount and easily to ooze out too much or mechanical property is deteriorated, degradation adverse consequences under heat distortion temperature.Coordinate the appropriate fire retardant of interpolation can reach better flame retardant effect simultaneously, harmful effect can not be caused to the mechanical property of goods.Adopt chopped glass fiber as the fortifying fibre of fiberglass, nano SiC is as reinforcer, by the acting in conjunction between each composition, effectively improve the impact resistance of glass fiber reinforced plastics product, toughness and thermal stability, resistance to wear and the fatigue resistance of glass fiber reinforced plastics product can also be improved.Chopped glass fiber can be dispersed in unsaturated polyester (UP) preferably, and good with the caking property of unsaturated polyester (UP), effectively increases the intensity of fibre glass product manufacture.Because nano SiC has larger specific area, increase with unsaturated polyester based contact level is long-pending, more micro-crack can be produced when material is hit, absorb more impact energy, thus improve the impact resistance of glass fiber reinforced plastics product.Meanwhile, because the hardness of nano SiC itself is higher, anti-wear performance is good, can increase hardness and the resistance to wear of glass fiber reinforced plastics product.If but consumption is excessive, particle is too close, and micro-crack easily develops into macroscopic view cracking, and material property can be deteriorated on the contrary, so by its proportional control in above-mentioned scope.In addition, because the fusing point of nano SiC itself is very high, the anti-flammability of glass fiber reinforced plastics product can be improved.Crosslinking agent adopts has multi-functional metering system acid diester, substitute the styrene that tradition uses, improve the crosslink density solidifying unsaturated polyester (UP), and the glass fiber reinforced plastics product after solidification has good light transmittance.
As a further improvement on the present invention, described fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, wherein Al (OH)
3, Mg (OH)
2be (3.5-5) with the weight ratio of Firebrake ZB three: (5-7.5): 3.
The anti-flammability of Firebrake ZB in fire retardant to above-mentioned halide monomer plays good synergy, and Firebrake ZB generates boric acid B in high temperature environments
2o
3, B
2o
3deposit in case at halide, generate BCl
3, BBr
3the burning of glass fiber reinforced plastics product surface interruption is covered Deng halogenation boron, and halogenation boron also has the effect catching free radical blocking-up combustion chain reaction when gaseous state, Firebrake ZB is combined with halide monomer can play well to hinder and so acts on, and Firebrake ZB low price, be conducive to controlling cost.
Use halide monomer to carry out polycondensation reaction in the present invention, remove hydrogen halides when high temperature, produce fire-retardant effect, but generate double bond simultaneously, promote carbonization, this is to fire-retardant favourable but a large amount of black smog can be caused to produce.And Al (OH)
3with Mg (OH)
2the imflammable gas that the water-dilutable Polymer-pyrolysis produced during decomposes dehydration generates, reduces the formation of above-mentioned smog; The heat that Absorbable rod is a large amount of simultaneously, reduces the surface temperature of combustible material, thus effectively reduces the decomposition rate of polymer, play flame retardant effect, and Al (OH)
3with Mg (OH)
2also less expensive, be conducive to controlling cost.
Above-mentioned halide-containing monomer select with fire retardant with the use of, make the good flame retardation effect of final glass fiber reinforced plastics product, and smog is few.
As a further improvement on the present invention, described chopped glass fiber is alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm.Fortifying fibre in glass-reinforced plastic material of the present invention selects alkali-free glass fiber, and the tensile strength of alkali-free glass fiber is obviously better than there is alkali glass.Better compatible in order to make between chopped glass fiber and unsaturated polyester (UP), define length and the diameter of chopped glass fiber.Glass diameter is too thick, with cementability and the poor compatibility of unsaturated polyester (UP), and the final mechanical property reducing glass fiber reinforced plastics product; If but glass is too thin, insufficient strength, can lose the humidification of glass.Within the specific limits, glass diameter is thinner, and length is longer, and the enhancing effect of glass strengthens to some extent, but when reaching a certain critical point, strengthening effect no longer increases, and forms opposite trend.In above-mentioned length and diameter range, the enhancing effect of chopped glass fiber to unsaturated polyester (UP) is the most obvious.
As a further improvement on the present invention, described chopped glass fiber is rare earth modified glass, its concrete method of modifying floods a period of time for being immersed in rare earth surface modifying agent by chopped glass fiber, then dry, containing the La element of 0.5% and the Ce element of 1.2% in described rare earth surface modifying agent.
As a further improvement on the present invention, the present invention can strengthen the interface bond strength of chopped glass fiber and unsaturated polyester (UP) matrix after adopting above-mentioned rare earth surface modifying agent to process chopped glass fiber, thus improves the mechanical property of unsaturated polyester (UP) glass steel part.Its reason is: rare earth element has unique electronic structure and special chemism, in the complex system that there is the nonmetalloid compositions such as hydrogen, oxygen, nitrogen, carbon, due to exchange and the interatomic polarization of electronics, rare earth is by polarized, become active element, and have very strong affinity with these nonmetalloids.When processing chopped glass fiber, first rare earth element is adsorbed in chopped glass fiber surface, and because electronegativity value is low, rare earth element is subsequently by the oxide S iO with chopped glass fiber surface
2, Al
2o
3deng generation chemical reaction, generate stable rare earth oxide, unsaturated polyester (UP) has C=C unsaturated double-bond on polymer molecular chain, through rare earth surface modifying agent process chopped glass fiber with unsaturated polyester (UP) compound tense, the rare earth element on chopped glass fiber surface will attract the carbon atom in unsaturated polyester (UP), cause C=C bonding electron cloud to produce drift, thus the bond weakened between carbon atom is made a concerted effort, and and then form RE-C key.Like this, rare earth atom defines strong interface cohesion with chopped glass fiber and unsaturated polyester based body respectively, and therefore improves stretching and the bending property of unsaturated polyester (UP) glass steel part.But when the too high levels of surface conditioning agent middle rare earth, the crystallization of rare-earth salts is easily formed on the surface of chopped glass fiber, affect the interface binding power of itself and unsaturated polyester (UP), so the concentration of rare earth element is controlled in above-mentioned scope, its treatment effect is better, rare earth element mainly select with La element and 1.2% the Ce element stronger La element of surface adhesion and Ce element, and content both controlling and ratio, to reach best treatment effect.
Present invention also offers the preparation process of described upper shell and lower house, its preparation process is: add water in 24-32 part dichloro maleic anhydride, then instill in part dicyclopentadiene, insulation reaction for the first time, then dicyclopentadiene is added, and 52-60 part tetrabormated phthalic acid, 20-24 part bromo propylene glycol and 2-4 part cobalt naphthenate, second time insulation reaction, then 15-22 part chopped glass fiber is added, 32-45 part nano SiC and 3-12 part fire retardant, add 16-21 part metering system acid diester after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively, wherein, the total addition of dicyclopentadiene is 18-23 part.
In the preparation process of fiberglass upper shell of the present invention and lower house, first a part of dicyclopentadiene and dichloro maleic anhydride are carried out addition reaction, generate the half ester of dicyclopentadiene alcohol, and then add tetrabormated phthalic acid, bromo propylene glycol carries out esterification, and add remaining dicyclopentadiene and promoter cobalt naphthenate, polycondensation generates unsaturated polyester (UP), obtained unsaturated polyester (UP) has good mobility and the transparency, then chopped glass fiber is added, nano SiC, fire retardant, mix, finally add metering system acid diester and carry out crosslinking curing in a mold, obtain the unsaturated polyester (UP) glass steel part of final modification, i.e. upper shell and lower house.The upper shell made and the lower house transparency good, facilitate the cast of pitch, cast can be made even, form better sealing and insulation effect.Dicyclopentadiene adds at twice in addition and Esterification Stage respectively, fully participates in reaction, still can constantly complete part addition reaction, make reaction more thorough in Esterification Stage at addition stage dicyclopentadiene.The fiberglass upper shell prepared by said method and lower house have the outward appearance of pale yellow transparent, convenient when installation and pitch paying.
As a further improvement on the present invention, the preparation process of described upper shell and lower house is: described first time the temperature of insulation reaction be 100-120 DEG C, time is 1-1.5h, second time insulation reaction is insulation reaction 1.5-2h at the vacuum degree of 0.05-0.10mpa and 260-270 DEG C first, then recovers normal pressure and is cooled to 100-110 DEG C.
The present invention will control speed well in the preparation process of fiberglass upper shell and lower house when dripping dicyclopentadiene moderate, can not too fast can not be excessively slow, excessive velocities then dicyclopentadiene fully can not be reacted with unsaturated polyester (UP), within the scope of said temperature, part resolves into cyclopentadiene, double bond addition in cyclopentadiene and unsaturated polyester (UP), the double bond density in unsaturated polyester (UP) is caused to decline, affect the performance of unsaturated polyester (UP), speed crosses the slow then long strand of unsaturated polyester (UP) can not end-blocking in time, proceed polycondensation reaction, it is very large that relative molecular weight can become, cause system viscosity excessive, therefore the present invention controls the addition reaction time is 1-1.5h.Along with the increase of polycondensation reaction time, the monomer polycondensation in system is long strand, and viscosity increases, Small molecular simultaneously in system is constantly distillated, and the polycondensation time can not be oversize, if oversize, system viscosity increases may there is gelatin phenomenon, is therefore remained in above-mentioned time range the polycondensation time.
As a further improvement on the present invention, the circumferential lateral surface of described upper shell is arranged with near the edge integral type of lower house two upper junction plates arranged in flat, on described lower house, integral type is arranged with and two upper junction plates, two lower connecting plates one to one, and described upper junction plate is sealedly and fixedly connected with corresponding lower connecting plate.
As a further improvement on the present invention, described connection jaws and encapsulating mouth are all set to one, and connection jaws and encapsulating mouth are all detachably provided with end cap.
As a further improvement on the present invention, described connection jaws is set to two, and described encapsulating mouth is also set to two, and described encapsulating mouth and connection jaws interval are arranged, and connection jaws and encapsulating mouth are all detachably provided with end cap.
As a further improvement on the present invention, below lower house, integral type is provided with multipair leg.
Based on technique scheme, the embodiment of the present invention at least can produce following technique effect: overall construction design rationally and compact in design, power cable junction and external environment completely cut off by glass fibre reinforced plastics casing, improve cable safety in utilization, upper shell and lower house coordinate closely, ensure that the sealing property of glass fibre reinforced plastics casing, its electrical insulation properties is stablized, ensure that the reliability of power cable work.
Upper shell and lower house adopt the unsaturated polyester (UP) glass steel improved to make, and have good mechanical performance, good flame retardation effect, long-lived advantage.This glass-reinforced plastic material adopts rare earth modified chopped glass fiber and nanometer silicon carbide as reinforcing material, there is higher intensity and toughness, resin matrix adopts the unsaturated polyester (UP) of halogen containing monomer polycondensation, itself there is good anti-flammability, be aided with inorganic combustion inhibitor, increase flame retardant effect, reduce smog simultaneously and produce.And this glass-reinforced plastic material has the outward appearance of pale yellow transparent, convenient even cast of installing and installing rear pitch, ensure that sealing and the insulating properties of this glass fibre reinforced plastics casing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail, wherein:
Fig. 1 is the structural representation of a preferred embodiment of the present invention.
Fig. 2 is the structural representation at another visual angle of Fig. 1.
Fig. 3 is the structural representation at another visual angle of Fig. 2.
In figure, 10, upper shell; 11, the first operate portions; 12, the second operate portions; 13, the 3rd operate portions; 14, the 4th operate portions; 15, the 5th operate portions; 16, encapsulating mouth; 17, connection jaws; 18, upper junction plate; 20, lower house; 21, lower connecting plate; 22, leg; 30, end cap.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
The present invention protects a kind of glass fibre reinforced plastics casing, is applicable to intermediate joint of electric cable for ensureing the sealing of intermediate joint of electric cable.
Existing most of protecting sheathing structural designs for intermediate joint of electric cable are unreasonable, and its sealing is not good, causes electric insulation effect undesirable, reduces the stability of power cable work.Therefore, it is necessary for designing a kind of more rational glass fibre reinforced plastics casing.
Below in conjunction with the elaboration that Fig. 1 to Fig. 3 carries out specifically to technical scheme provided by the invention.
As shown in Figure 1 to Figure 3, this glass fibre reinforced plastics casing comprises:
Upper shell 10, by to be connected as a single entity and the first operate portions 11, second operate portions 12 set gradually, the 3rd operate portions 13, the 4th operate portions 14, the 5th operate portions 15 are formed, the diameter of the first operate portions 11, the 5th operate portions 15 successively decreases all from the inside to the outside, the length of the first operate portions 11 is greater than the length of the 5th operate portions 15, second operate portions 12, the 4th operate portions 14 are all arranged in closing in, 3rd operate portions 13 is arranged in semicircular cylinder, and the side of the 3rd operate portions 13 is provided with at least one encapsulating mouth 16 and at least one connection jaws 17;
Lower house 20, is oppositely arranged with upper shell 10 and is tightly connected with upper shell 10, and after installation, the corresponding position of lower house 20 surrounds formation loop configuration in the corresponding operate portions of upper shell 10;
Upper shell 10 and lower house 20 are made by anti-flammability glass-reinforced plastic material.
In the present case, glass fibre reinforced plastics casing is formed primarily of upper shell 10 and lower house 20, in use, first space upper shell 10 and lower house 20 being surrounded formation is each passed through two power cable ends to be connected, is carrying out cable connection and is being connected with lower house 20 by upper shell 10 after insulating.
This glass fibre reinforced plastics casing in an initial condition, overall construction design rationally and compact in design, power cable junction and external environment completely cut off by glass fibre reinforced plastics casing, improve cable safety in utilization, the upper shell 10 adopting anti-flammability glass-reinforced plastic material to make and lower house 20 coordinate closely, ensure that the sealing property of glass fibre reinforced plastics casing, its electrical insulation properties is stablized, ensure that the reliability of power cable work.
Further, this glass fibre reinforced plastics casing also plays mechanical protection effect, can prevent damage, further ensures reliability and the fail safe of power cable work.
This glass fibre reinforced plastics casing is arranged on single-core cable joint, its encapsulating mouth 16 for insulating material (as waterproof insulation glue) being poured into the inner space of glass fibre reinforced plastics casing, with attached cable transition joint and glass fibre reinforced plastics casing.And connection jaws 17 is for connecting earth connection and earth connection being connected nigh earth electrode, ensure stability and the reliability of work.
This glass fibre reinforced plastics casing adopts anti-flammability glass-reinforced plastic material to make, fiberglass light weight and hard and non-conductive, and its mechanical strength is high, good seal performance, stable performance, corrosion-resistant.In the present invention, this glass fibre reinforced plastics casing is applicable to the cross-inked polyethylene power cable transition joints such as 35kV, 66kV, 110kV, 145kV, 220kV, plays insulation, sealing, connects and mechanical protection effect.
When this glass fibre reinforced plastics casing is installed, can fluid sealant be poured into a mould, be arranged on cable trough interior or direct buried, also can be used on copper enclosure, adopt with copper shell simultaneously, double protection is played to intermediate joint of electric cable, make its sealing effectiveness better.
Concrete, be connected tightr for making upper shell 10 with lower house 20, the circumferential lateral surface of preferred upper shell 10 is arranged with near the edge integral type of lower house 20 two upper junction plates 18 arranged in flat, on lower house 20, integral type is arranged with and two upper junction plates 18, two lower connecting plates 21 one to one, and upper junction plate 18 is sealedly and fixedly connected with corresponding lower connecting plate 21.
Preferably, for making encapsulating and ground connection work convenient, efficient, connection jaws 17 and encapsulating mouth 16 are all set to one, and connection jaws 17 and encapsulating mouth 16 are all detachably provided with end cap 30.
As another kind of preferred version, connection jaws 17 is set to two, and encapsulating mouth 16 is also set to two, and encapsulating mouth 16 and connection jaws 17 interval are arranged, and connection jaws 17 and encapsulating mouth 16 are all detachably provided with end cap 30.End cap 30 ensure that sealing also plays the effects such as dust-tight.
Preferably, more steady for making to install, below lower house 20, integral type is provided with multipair leg 22.
Wherein, the anti-flammability glass-reinforced plastic material that upper shell and lower house are selected comprises the component of following weight portion: dichloro maleic anhydride 24-32 part, dicyclopentadiene 18-23 part, tetrabormated phthalic acid 52-60 part, bromo propylene glycol 20-24 part, chopped glass fiber 15-22 part, nano SiC 32-45 part, cobalt naphthenate 2-4 part, fire retardant 3-12 part, metering system acid diester 16-21 part.
Below by specific embodiment, the glass fibre reinforced plastics casing in the present invention is further explained.
Embodiment 1
The anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: dichloro maleic anhydride 24 parts, dicyclopentadiene 23 parts, tetrabormated phthalic acid 52 parts, bromo propylene glycol 24 parts, chopped glass fiber 15 parts, nano SiC 45 parts, cobalt naphthenate 2 parts, fire retardant 3 parts, metering system acid diester 16 parts.
Wherein, fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, its weight ratio is 3.5:7.5:3.Chopped glass fiber is through rare earth modified alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
The preparation process of upper shell and lower house is: add water in 24 parts of dichloro maleic anhydrides, then 9 parts of dicyclopentadienes are instilled, insulation reaction 1h at 100 DEG C, then 9 parts of dicyclopentadienes are added, 52 parts of tetrabormated phthalic acids, 24 parts of bromo propylene glycol and 2 parts of cobalt naphthenates, insulation reaction 1.5h at the vacuum degree of 0.05mpa and 260 DEG C, then recover normal pressure and be cooled to 100 DEG C, add 15 parts of chopped glass fibers again, 45 parts of nano SiCs and 3 parts of fire retardants, add 16 parts of metering system acid diesters after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively.
Embodiment 2
The anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: dichloro maleic anhydride 26 parts, dicyclopentadiene 22 parts, tetrabormated phthalic acid 54 parts, bromo propylene glycol 23 parts, chopped glass fiber 17 parts, nano SiC 41 parts, cobalt naphthenate 3 parts, fire retardant 5 parts, metering system acid diester 18 parts.
Wherein, fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, its weight ratio is 4.0:7.0:3.Chopped glass fiber is through rare earth modified alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
The preparation process of upper shell and lower house is: add water in 26 parts of dichloro maleic anhydrides, then 10 parts of dicyclopentadienes are instilled, insulation reaction 1.2h at 105 DEG C, then 9 parts of dicyclopentadienes are added, 54 parts of tetrabormated phthalic acids, 23 parts of bromo propylene glycol and 3 parts of cobalt naphthenates, insulation reaction 1.8h at the vacuum degree of 0.08mpa and 265 DEG C, then recover normal pressure and be cooled to 105 DEG C, add 17 parts of chopped glass fibers again, 41 parts of nano SiCs and 5 parts of fire retardants, add 18 parts of metering system acid diesters after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively.
Embodiment 3
The anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: dichloro maleic anhydride 28 parts, dicyclopentadiene 20 parts, tetrabormated phthalic acid 56 parts, bromo propylene glycol 22 parts, chopped glass fiber 19 parts, nano SiC 38 parts, cobalt naphthenate 4 parts, fire retardant 8 parts, metering system acid diester 19 parts.
Wherein, fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, its weight ratio is 4.5:6.0:3.Chopped glass fiber is through rare earth modified alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 11 μm, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
The preparation process of upper shell and lower house is: add water in 28 parts of dichloro maleic anhydrides, then 11 parts of dicyclopentadienes are instilled, insulation reaction 1.5h at 110 DEG C, then 9 parts of dicyclopentadienes are added, 56 parts of tetrabormated phthalic acids, 22 parts of bromo propylene glycol and 4 parts of cobalt naphthenates, insulation reaction 2h at the vacuum degree of 0.10mpa and 270 DEG C, then recover normal pressure and be cooled to 110 DEG C, add 19 parts of chopped glass fibers again, 38 parts of nano SiCs and 8 parts of fire retardants, add 19 parts of metering system acid diesters after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively.
Embodiment 4
The anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: dichloro maleic anhydride 30 parts, dicyclopentadiene 19 parts, tetrabormated phthalic acid 58 parts, bromo propylene glycol 22 parts, chopped glass fiber 20 parts, nano SiC 35 parts, cobalt naphthenate 3 parts, fire retardant 10 parts, metering system acid diester 20 parts.
Wherein, fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, its weight ratio is 5.0:5.5:3.Chopped glass fiber is through rare earth modified alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
The preparation process of upper shell and lower house is: add water in 30 parts of dichloro maleic anhydrides, then 12 parts of dicyclopentadienes are instilled, insulation reaction 1h at 115 DEG C, then 10 parts of dicyclopentadienes are added, 58 parts of tetrabormated phthalic acids, 22 parts of bromo propylene glycol and 3 parts of cobalt naphthenates, insulation reaction 1.5h at the vacuum degree of 0.09mpa and 270 DEG C, then recover normal pressure and be cooled to 105 DEG C, add 20 parts of chopped glass fibers again, 35 parts of nano SiCs and 10 parts of fire retardants, add 20 parts of metering system acid diesters after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively.
Embodiment 5
The anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: dichloro maleic anhydride 32 parts, dicyclopentadiene 18 parts, tetrabormated phthalic acid 60 parts, bromo propylene glycol 20 parts, chopped glass fiber 22 parts, nano SiC 32 parts, cobalt naphthenate 4 parts, fire retardant 12 parts, metering system acid diester 21 parts.
Wherein, fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, its weight ratio is 4.0:5.0:3.Chopped glass fiber is through rare earth modified alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
The preparation process of upper shell and lower house is: add water in 32 parts of dichloro maleic anhydrides, then 13 parts of dicyclopentadienes are instilled, insulation reaction 1-1.5h at 120 DEG C, then 10 parts of dicyclopentadienes are added, 60 parts of tetrabormated phthalic acids, 20 parts of bromo propylene glycol and 4 parts of cobalt naphthenates, insulation reaction 2h at the vacuum degree of 0.07mpa and 260 DEG C, then recover normal pressure and be cooled to 110 DEG C, add 22 parts of chopped glass fibers again, 32 parts of nano SiCs and 12 parts of fire retardants, add 21 parts of metering system acid diesters after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively.
Comparative example 1
Be to make in the anti-flammability glass-reinforced plastic material of upper shell and lower house with the difference of embodiment 1 and do not add dicyclopentadiene, other are identical with embodiment 1.
Comparative example 2
Be with the difference of embodiment 1, the anti-flammability glass-reinforced plastic material making upper shell and lower house comprises the component of following weight portion: maleic anhydride 24 parts, dicyclopentadiene 23 parts, tetrahydrophthalic acid 52 parts, propylene glycol 24 parts, chopped glass fiber 15 parts, nano SiC 45 parts, cobalt naphthenate 2 parts, fire retardant 3 parts, metering system acid diester 16 parts, i.e. not halogen-containing in the polycondensation monomer of unsaturated polyester (UP), other are all identical with embodiment 1.
Comparative example 3
Be with the difference of embodiment 1, the chopped glass fiber made in the anti-flammability glass-reinforced plastic material of upper shell and lower house is that other are identical with embodiment 1 without rare earth modified common glass.
Comparative example 4
Be with the difference of embodiment 1, the reinforcer made in the anti-flammability glass-reinforced plastic material of upper shell and lower house replaces with CaCO3 by nano SiC, and other are identical with embodiment 1.
Comparative example 5
Common commercially available glass fibre reinforced plastics casing.
Carry out performance test to the glass fibre reinforced plastics casing in embodiment 1-5 and comparative example 1-5, its result is as shown in table 1.
The performance test results of the glass fibre reinforced plastics casing in table 1: embodiment 1-5 and comparative example 1-5
In sum, the upper shell of the glass fibre reinforced plastics casing in the present invention and lower house have employed specific glass-reinforced plastic material and make, and have good mechanical property, insulating properties and anti-flammability, and have transparent outward appearance, install and use easy to use; Overall construction design is reasonable, compact in design, and upper shell and lower house coordinate closely, and good airproof performance, electrical insulation properties is stablized, and ensure that the reliability of power cable work.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (10)
1. a glass fibre reinforced plastics casing, is characterized in that, described glass fibre reinforced plastics casing comprises:
Upper shell, by to be connected as a single entity and the first operate portions set gradually, the second operate portions, the 3rd operate portions, the 4th operate portions, the 5th operate portions are formed, the diameter of described first operate portions, the 5th operate portions successively decreases all from the inside to the outside, the length of described first operate portions is greater than the length of the 5th operate portions, described second operate portions, the 4th operate portions are all arranged in closing in, described 3rd operate portions is that semicircular cylinder is arranged, and the side of described 3rd operate portions is provided with at least one encapsulating mouth and at least one connection jaws;
Lower house, is oppositely arranged with upper shell and is tightly connected with upper shell, and after installation, the corresponding position of lower house surrounds formation loop configuration in the corresponding operate portions of upper shell;
Described upper shell and lower house are made by anti-flammability glass-reinforced plastic material.
2. a kind of glass fibre reinforced plastics casing according to claim 1, it is characterized in that, described anti-flammability glass-reinforced plastic material comprises the component of following weight portion: dichloro maleic anhydride 24-32 part, dicyclopentadiene 18-23 part, tetrabormated phthalic acid 52-60 part, bromo propylene glycol 20-24 part, chopped glass fiber 15-22 part, nano SiC 32-45 part, cobalt naphthenate 2-4 part, fire retardant 3-12 part, metering system acid diester 16-21 part.
3. a kind of glass fibre reinforced plastics casing according to claim 2, is characterized in that, described fire retardant is Al (OH)
3, Mg (OH)
2with the mixture of Firebrake ZB, wherein Al (OH)
3, Mg (OH)
2be (3.5-5) with the weight ratio of Firebrake ZB three: (5-7.5): 3.
4. a kind of glass fibre reinforced plastics casing according to claim 2, is characterized in that, described chopped glass fiber is alkali-free glass fiber, and its length is 1.5-4.5mm, and diameter is 10-12 μm.
5. a kind of glass fibre reinforced plastics casing according to claim 2, it is characterized in that, described chopped glass fiber is rare earth modified glass, method of modifying be chopped glass fiber is immersed in the rare earth surface modifying agent containing the La element of 0.5% and the Ce element of 1.2% dry after dipping.
6. a kind of glass fibre reinforced plastics casing according to claim 2, is characterized in that, the preparation process of described upper shell and lower house is:
Add water in 24-32 part dichloro maleic anhydride, then part dicyclopentadiene is instilled, insulation reaction for the first time, then dicyclopentadiene and 52-60 part tetrabormated phthalic acid, 20-24 part bromo propylene glycol and 2-4 part cobalt naphthenate is added, second time insulation reaction, then 15-22 part chopped glass fiber, 32-45 part nano SiC and 3-12 part fire retardant is added, add 16-21 part metering system acid diester after abundant mixing to be cured in a mold, obtained upper shell and lower house respectively, wherein, the total addition of dicyclopentadiene is 18-23 part.
7. a kind of glass fibre reinforced plastics casing according to claim 6, it is characterized in that, described first time, the temperature of insulation reaction was 100-120 DEG C, time is 1-1.5h, second time insulation reaction first reacts 1.5-2h at the vacuum degree of 0.05-0.10mpa and 260-270 DEG C, then recovers normal pressure and is cooled to 100-110 DEG C.
8. a kind of glass fibre reinforced plastics casing according to claim 1, it is characterized in that, the circumferential lateral surface of described upper shell is arranged with near the edge integral type of lower house two upper junction plates arranged in flat, on described lower house, integral type is arranged with and two upper junction plates, two lower connecting plates one to one, and described upper junction plate is sealedly and fixedly connected with corresponding lower connecting plate.
9. a kind of glass fibre reinforced plastics casing according to claim 1, is characterized in that, described connection jaws and encapsulating mouth are all set to one or two, and connection jaws and encapsulating mouth are all detachably provided with end cap.
10. a kind of glass fibre reinforced plastics casing according to claim 1, is characterized in that, below lower house, integral type is provided with multipair leg.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681272.7A CN105206952A (en) | 2015-10-20 | 2015-10-20 | Glass fiber reinforced plastic casing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510681272.7A CN105206952A (en) | 2015-10-20 | 2015-10-20 | Glass fiber reinforced plastic casing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106025987A (en) * | 2016-06-21 | 2016-10-12 | 成都绿迪科技有限公司 | Cable shell structure |
| CN106329428A (en) * | 2016-11-17 | 2017-01-11 | 国网上海市电力公司 | Protective box of cable intermediate joint |
| CN113161978A (en) * | 2020-11-16 | 2021-07-23 | 郑芬 | Underwater fastening sealing cable connection structure |
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| CN101781444A (en) * | 2010-03-31 | 2010-07-21 | 上海交通大学 | Method for preparing rare-earth-modified glass-fiber epoxy-resin composite materials |
| CN202363865U (en) * | 2011-11-30 | 2012-08-01 | 江苏安靠智能输电工程科技股份有限公司 | Insulation protection shell for cable accessory |
| CN102675801A (en) * | 2011-12-19 | 2012-09-19 | 河南科技大学 | Flame-retardant toughened polydicyclopentadiene composite material and preparation method thereof |
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| CN101781444A (en) * | 2010-03-31 | 2010-07-21 | 上海交通大学 | Method for preparing rare-earth-modified glass-fiber epoxy-resin composite materials |
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| CN113161978A (en) * | 2020-11-16 | 2021-07-23 | 郑芬 | Underwater fastening sealing cable connection structure |
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Address after: 315137 Zhejiang province Ningbo City Yunlong Industrial Zone Yinzhou District Yunlong Town Cloud Hui Lu No. 211 Applicant after: Ningbo East power Polytron Technologies Inc Address before: 315137 Zhejiang province Ningbo City Yunlong Industrial Zone Yinzhou District Yunlong Town Cloud Hui Lu No. 211 Applicant before: NINGBO JOHOST CABLE ACCESSORIES CO., LTD. |
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Application publication date: 20151230 |