A kind of cold-resistant intelligent electric meter housing is with polycarbonate/ABS Alloy And Preparation Method
Technical field
The present invention relates to polymeric material field, relate in particular to polycarbonate/ABS alloy field, be specifically related to a kind of polycarbonate/ABS Alloy And Preparation Method that can be used for preparing cold-resistant intelligent electric meter housing.
Background technology
Polycarbonate (PC) is a kind of common general-purpose plastics; Contain carbonate group; Structure according to ester group can be divided into broad varietys such as aliphatics, aromatic series, is a kind of water white indefiniteness thermoplastic material; Its chemical property is weak acid resistant, anti-weak base, anti-neutral oil, not ultraviolet resistance and not anti-highly basic, and its physical properties is linear expansivity: 38 * 10cm/cm
2, 135 ℃ of thermal change type temperature, have poor stability, exist stress be easy to split, low to the breach anti-impact force, wear no resistance, shortcomings such as, viscosity low to the metalwork bounding force is big, mobile difference and influence processing injection moulding.
Acrylonitrile-butadiene-styrene copolymer (ABS) has preferably processing fluidity, advantages such as surface decoration and low price easily, but it also has inflammable, not cold-resistant, frangible and mobile shortcoming such as not good enough.
At present, those skilled in the art mix use with PC, ABS and form compsn, then can reach the effect of learning from other's strong points to offset one's weaknesses, and obtain good comprehensive properties PC/ABS alloy.
Polycarbonate and ABS are material relatively more commonly used, no matter be that PC or ABS all can produce a large amount of defective materials or substandard products, recovery article, the processing for defective material, substandard products or recovery article at present mainly contains following several method:
(1) burning or land-fill method; Because remittance produces obnoxious flavoures such as sulfurous gas in burning process, very easily causes environmental pollution, and takes land-fill method; Because the refractory organics of material also can cause very big harm to environment, present this mode progressively is eliminated;
(2) defective material, substandard products or recovery article are simply reclaimed take out grain and do not carry out any modification, be downgraded to common plastics to use,, fail to make full use of the economic worth of these defective materials though solved problem of environmental pollution.
Therefore, how to reclaim and fully use these defective materials, substandard products or recovery article, it is a problem of benefiting the nation and the people that the back that makes it to regenerate produces new economic benefit.
For cold districts such as the north, so ammeter is owing to have higher requirements to its winter hardiness in outdoor placement, and concerning existing PC/ABS alloy, so cause the winter hardiness of whole PC/ABS relatively poor because of the winter hardiness difference of ABS for a long time.
Summary of the invention
The objective of the invention is to deficiency to prior art; Providing with PC raw material, PC reworked material, ABS reworked material is staple; Have characteristics such as high-performance, high flame retardant, high-impact, high stability, antistatic and winter hardiness, can be used for preparing the polycarbonate/ABS alloy of the intelligent electric meter housing that is applicable to cold district.
Another object of the present invention is to provide the preparation method of above-mentioned polycarbonate/ABS alloy.
Aforesaid method of the present invention is achieved through following scheme:
A kind of cold-resistant intelligent electric meter housing is with polycarbonate/ABS alloy, and its composition of raw materials is made up of each component of following parts by weight:
25~50 parts of polycarbonate (PC);
20~50 parts of polycarbonate (PC) reworked materials;
20~30 parts of ABS reworked materials;
5~10 parts of MBS;
5~8 parts of triphenylphosphates;
0.3~0.5 part of FR2025 fireproofing agent;
0.5~2 part of titanium oxide;
0.1~0.5 part of antioxidant 1010;
168 0.1~0.5 part in oxidation inhibitor;
0.1~0.5 part of anti UV agent UV-531;
0.03~0.08 part of spread powder EBS;
0.02~0.06 part of ultramarine blue toner;
0.02~0.04 part of red iron oxide toner;
0.005~0.01 part of high temperature resistant fluorescent yellow toner;
2~5 parts of cold-resistant agents.
Above-mentioned polycarbonate (PC) adopts commercially available any polycarbonate raw material all can realize the present invention.
Above-mentioned polycarbonate regenerated material adopt any polycarbonate regenerated material all can, like polycarbonate defective material, substandard products or recovery article or the like; Because it has certain color requirement the intelligent electric meter housing; Therefore cold-resistant intelligent electric meter housing of the present invention is with in polycarbonate/ABS alloy; Polycarbonate regenerated material does not preferably adopt dark colour polycarbonate regenerated material such as have black, dark blue or bright red, needs cost because the reworked material color shoaled; Polycarbonate of the present invention in addition/ABS alloy can also be used to prepare terminal row, when being used to prepare terminal row, then the color of polycarbonate regenerated material is not carried out requirement.
Above-mentioned ABS reworked material adopt any ABS reworked material all can, like ABS defective material, substandard products or recovery article or the like; Because it has certain color requirement the intelligent electric meter housing; Therefore cold-resistant intelligent electric meter housing of the present invention is with in polycarbonate/ABS alloy; The ABS reworked material does not preferably adopt dark colour ABS reworked material such as have black, dark blue or bright red, needs cost because the reworked material color shoaled; Polycarbonate of the present invention in addition/ABS alloy can also be used to prepare terminal row, when being used to prepare terminal row, then the color of ABS reworked material is not carried out requirement.
The cold-resistant agent 2602 that above-mentioned cold-resistant agent is produced for U.S. Rhom and Hass.
Above-mentioned MBS is the english abbreviation of MBS, plays toughness reinforcing effect in the present invention, overcomes the fragility of polymkeric substance, adopts commercially available any MBS all can realize the present invention.
The english abbreviation of above-mentioned triphenylphosphate is TPP, plays the inflammableness that overcomes ABS in the present invention, improves the effect of polymkeric substance flame retardant resistance; Adopt commercially available any triphenylphosphate all can realize the present invention.
Above-mentioned FR2025 fireproofing agent is the commercially available prod, and the FR2025 fireproofing agent is an environmental protection fire retarding agent, plays the effect of fire retardant in the present invention.
Above-mentioned titanium oxide (TiO
2) in the present invention, can play the effect variegated, that brighten that disappears to the color of reworked material in the original prescription, make that the color and luster of product is more suitable.
Above-mentioned antioxidant 1010 and oxidation inhibitor 168 are the commercially available prod, play the effect of heat resistanceheat resistant, resist oxygen aging in the present invention.
Above-mentioned anti UV agent UV-531 is the commercially available prod, plays in the present invention to make alloy improve anti-aging, absorption action of ultraviolet ray, stablizes more than 10 years thereby reach product color.
Above-mentioned spread powder EBS is the commercially available prod, plays effect lubricated, diffusion in the present invention.
The effect of above-mentioned ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner is arrange in pairs or groups 1U, the 4U of the color The profile that modulates together; Ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner adopt the commercially available prod to get final product.
The effect of above-mentioned cold-resistant agent mainly is the winter hardiness that improves alloy monolithic, improves alloy shock strength and stability at low temperatures; Cold-resistant agent kind on the market is a lot; The inventor is through after selecting hundreds of cold-resistant agent; Discovery adds the cold-resistant agent 2602 (its English full name is PARALOID EXL2602) of U.S. Rhom and Hass production in the above-mentioned raw materials prescription after; Can obtain best cold-resistant effect, and price is suitable.
Above-mentioned cold-resistant ammeter housing is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/ABS alloy; Send in the twin screw extruder after PC, PC reworked material, ABS reworked material, MBS, triphenylphosphate, FR2025 fireproofing agent, titanium oxide, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner, high temperature resistant fluorescent yellow toner and cold-resistant agent 2602 mixed; Melting mixing under 220~260 ℃ temperature; After the gained melt is extruded by twin screw extruder; Cool off through tank; Introduce dicing machine and carry out the pelletizing operation, collect pellet and be cold-resistant intelligent electric meter housing of the present invention with polycarbonate/ABS alloy.
Among the above-mentioned preparation method; PC, PC reworked material, ABS reworked material, MBS, triphenylphosphate, FR2025 fireproofing agent, titanium oxide, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner, high temperature resistant fluorescent yellow toner and cold-resistant agent 2602 are mixed, under 650~1300 rev/mins rotating speed, mix; Adopt 650~1300 rev/mins rotating speed to stir, if be because stir and to mix badly too slowly, stirs too soon, material is understood cracking.
Among the above-mentioned preparation method, the rotating speed of twin screw extruder is 250~400rPm.
Among the above-mentioned preparation method, it is 220~260 ℃ that melting mixing adopts temperature, is that fusion is bad because temperature is too low, and temperature is too high, and material can cracking.
Among the above-mentioned preparation method, the melt of being extruded by twin screw extruder is when tank cools off, and used tank temperature is 60~80 ℃; The inventor is through discovering, tank refrigerative temperature also can have certain influence to product here, if the tank temperature is low excessively; Then the space is excessive and frangible between pellet; If the tank temperature is too high, then pellet is prone to bonding, therefore; After the tank temperature was optimized, the tank temperature that inventor's selection is used for cold fuse-element was 60~80 ℃.
Among the above-mentioned preparation method, the rotating speed of dicing machine is 600~900rpm; The inventor is through discovering, if the dicing machine rotating speed is slow excessively, then pellet can be too loose, if the dicing machine rotating speed is too fast, then pellet can be too little, and therefore, it is suitable that the rotating speed of dicing machine need be adjusted, otherwise all can be to final pellet attractive in appearance influential; To this, the inventor optimizes and revises the rotating speed of dicing machine, and the rotating speed of finally selecting dicing machine is 600~900rpm.
The cold-resistant intelligent electric meter housing of above-mentioned preparation gained is carried out performance test with polycarbonate/ABS alloy; Find that this alloy has high-performance, high winter hardiness, high flame retardant, high-impact, high stability and characteristics such as antistatic; Can be used for preparing intelligent electric meter housing (like individual event ammeter housing, three ammeter housings etc.); Especially preparation is applicable to the intelligent electric meter housing of cold district, can be used for preparing terminal row in addition.
Compared with prior art, the present invention has following beneficial effect:
1. cold-resistant intelligent electric meter housing of the present invention is with polycarbonate/ABS alloy; Not only to the workability of ABS and superior mechanical property and the thermostability of PC be combined; And adopted PC reworked material and ABS reworked material in its raw material, for the polycarbonate/ABS alloy that obtains excellent property, the inventor is to the characteristics of the reworked material proper auxiliary agent of having arranged in pairs or groups; And the consumption of each auxiliary agent optimized; The selection of each auxiliary agent makes PC reworked material and ABS reworked material also can prepare the polycarbonate of excellent property/ABS alloy, is national energy-saving and emission-reduction, and renewable resource utilization contributes;
2. cold-resistant intelligent electric meter housing of the present invention is with polycarbonate/ABS alloy; It has high-performance, high flame retardant, high-impact, high stability and characteristics such as antistatic; When being used to prepare intelligent electric meter housing and terminal row; Its each item index can satisfy or surpass the standard of materials of system of State Grid to single-phase three-phase kilowatt-hour meter housing of intelligence and terminal row, and stability of material is high, quality is good, for domestic, international electrical network administer reach environmental protection, energy-conservation, reduce discharging and contribute share;
3. cold-resistant intelligent electric meter housing of the present invention is with polycarbonate/ABS alloy; Emphasis is studied the winter hardiness of alloy; After multiple cold-resistant agent is screened; Obtain the best cold-resistant agent of winter hardiness effect 2602, thereby guaranteed the high winter hardiness of alloy, the ammeter housing for preparing with this alloy can guarantee that ammeter also is difficult for impaired in the cold district use;
4. the cold-resistant intelligent electric meter housing of the present invention is with the preparation method of polycarbonate/ABS alloy; Characteristics according to its formula material; Rotating speed and temperature to its raw materials mix rotating speed, twin screw extruder are optimized, thereby have guaranteed the premium properties of preparation gained alloy.
Embodiment
Below in conjunction with specific embodiment the present invention is done description further, but specific embodiment is not done any qualification to the present invention.
Embodiment 1
A kind of cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy, and its composition of raw materials is made up of each component of following parts by weight:
25 parts of PC;
33 parts of PC reworked materials;
20 parts of ABS reworked materials;
9 parts of MBS;
5 parts of triphenylphosphates;
0.5 part of FR2025 fireproofing agent;
1 part of titanium oxide;
0.5 part of antioxidant 1010;
168 0.3 parts in oxidation inhibitor;
0.5 part of anti UV agent UV-531;
0.08 part of spread powder EBS;
0.06 part of ultramarine blue toner;
0.04 part of red iron oxide toner;
0.01 part of high temperature resistant fluorescent yellow toner;
5 parts of cold-resistant agents;
Above-mentioned cold-resistant agent is the cold-resistant agent 2602 that U.S. Rhom and Hass produces, and its English full name is PARALOID EXL2602.
The cold-resistant ammeter housing of present embodiment is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/ABS alloy; With PC, PC reworked material, ABS reworked material, MBS, triphenylphosphate, FR2025 fireproofing agent, titanium oxide, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner, high temperature resistant fluorescent yellow toner and cold-resistant agent 2602 in high-speed mixer; Send in the twin screw extruder after mixing with 1300 rev/mins rotating speeds; Rotating speed at twin screw extruder is 400rpm; Temperature is a melting mixing under 240 ℃ the condition; After the gained melt is extruded by twin screw extruder,, introduce dicing machine through tank cooling (the tank temperature is 70 ℃); Dicing machine carries out the pelletizing operation with the rotating speed of 600rpm, and the cold-resistant intelligent electric meter housing that the collection pellet is present embodiment is with polycarbonate/ABS alloy.
Adopt the ASTM international standard that the cold-resistant intelligent electric meter housing that present embodiment prepares is carried out performance test with polycarbonate/ABS alloy, the result is as shown in table 1.
The cold-resistant intelligent electric meter housing of table 1 is with the The performance test results of polycarbonate/ABS alloy
Can find out by table 1; The cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy; Its each item performance index all reach the standard of materials requirement of system of State Grid to the intelligent electric meter housing; And under-20 ℃ condition, its notched Izod impact strength is also fine, can satisfy the requirement of cold district to ammeter fully.
Embodiment 2
A kind of cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy, and its composition of raw materials is made up of each component of following parts by weight:
35 parts of PC;
20 parts of PC reworked materials;
25 parts of ABS reworked materials;
6 parts of MBS;
7 parts of triphenylphosphates;
0.3 part of FR2025 fireproofing agent;
2 parts of titanium oxide;
0.5 part of antioxidant 1010;
168 0.5 parts in oxidation inhibitor;
0.5 part of anti UV agent UV-531;
0.08 part of spread powder EBS;
0.06 part of ultramarine blue toner;
0.03 part of red iron oxide toner;
0.01 part of high temperature resistant fluorescent yellow toner;
4 parts of cold-resistant agents;
Above-mentioned cold-resistant agent is the cold-resistant agent 2602 that U.S. Rhom and Hass produces, and its English full name is PARALOID EXL2602.
The cold-resistant ammeter housing of present embodiment is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/ABS alloy; With PC, PC reworked material, ABS reworked material, MBS, triphenylphosphate, FR2025 fireproofing agent, titanium oxide, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner, high temperature resistant fluorescent yellow toner and cold-resistant agent 2602 in high-speed mixer; Send in the twin screw extruder after mixing with 1300 rev/mins rotating speeds; Rotating speed at twin screw extruder is 400rpm; Temperature is a melting mixing under 240 ℃ the condition; After the gained melt is extruded by twin screw extruder,, introduce dicing machine through tank cooling (the tank temperature is 80 ℃); Dicing machine carries out the pelletizing operation with the rotating speed of 900rpm, and the cold-resistant intelligent electric meter housing that the collection pellet is present embodiment is with polycarbonate/ABS alloy.
Adopt the ASTM international standard that the cold-resistant intelligent electric meter housing that present embodiment prepares is carried out performance test with polycarbonate/ABS alloy, the result is as shown in table 2.
The cold-resistant intelligent electric meter housing of table 2 is with the The performance test results of polycarbonate/ABS alloy
Can find out by table 2; The cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy; Its each item performance index all reach the standard of materials requirement of system of State Grid to the intelligent electric meter housing; And under-20 ℃ condition, its notched Izod impact strength is also fine, can satisfy the requirement of cold district to ammeter fully.
Embodiment 3
The cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy; Cold-resistant agent in composition of raw materials adopts the cold-resistant agent M721 (existing a kind of cold-resistant agent commonly used); Each component of all the other composition of raw materials, and the preparation method of alloy is all identical with embodiment 2.
Embodiment 4
The cold-resistant intelligent electric meter housing of present embodiment is with polycarbonate/ABS alloy; Cold-resistant agent in composition of raw materials adopts the cold-resistant agent M711 (existing a kind of cold-resistant agent commonly used); Each component of all the other composition of raw materials, and the preparation method of alloy is all identical with embodiment 2.
Embodiment 5
Adopt the detection method of embodiment 2 that the cold-resistant intelligent electric meter housing of embodiment 3 is tested with the shock strength that polycarbonate/ABS alloy all carries out under 23 ℃ and-20 ℃ with the cold-resistant intelligent electric meter housing of polycarbonate/ABS alloy and embodiment 4, the test result of result and embodiment 2 compared:
1, the cold-resistant intelligent electric meter housing of embodiment 2 is with polycarbonate/ABS alloy
(1/8 ") is 55 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 45Kg ㎝/㎝ to notched Izod impact strength under-20 ℃.
2, the cold-resistant intelligent electric meter housing of embodiment 3 is with polycarbonate/ABS alloy
(1/8 ") is 52 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 38 Kg ㎝/㎝ to notched Izod impact strength under-20 ℃.
3, the cold-resistant intelligent electric meter housing of embodiment 4 is with polycarbonate/ABS alloy
(1/8 ") is 54 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 39Kg ㎝/㎝ to notched Izod impact strength under-20 ℃.
Can find out that from The above results with polycarbonate/ABS alloy, its winter hardiness obviously is superior to other two kinds, is adapted at the cold district use with the cold-resistant intelligent electric meter housing of cold-resistant agent 2602 preparation.