CN102311629B - Polycarbonate (PC)/glass fiber (GF) alloy for intelligent water meter housing and preparation method thereof - Google Patents
Polycarbonate (PC)/glass fiber (GF) alloy for intelligent water meter housing and preparation method thereof Download PDFInfo
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- CN102311629B CN102311629B CN2011101882320A CN201110188232A CN102311629B CN 102311629 B CN102311629 B CN 102311629B CN 2011101882320 A CN2011101882320 A CN 2011101882320A CN 201110188232 A CN201110188232 A CN 201110188232A CN 102311629 B CN102311629 B CN 102311629B
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Abstract
The invention discloses a PC/GF alloy for the housing of an intelligent water meter and a preparation method thereof. The raw material formula of the PC/GF alloy for the housing of the intelligent water meter comprises the following components, by weight, 30-50 parts of PC, 30-50 parts of a recycled material of the PC, 0.5-2 parts of titanium dioxide, 9.5-11.5 of a GF, 2-6 parts of a cold resistant agent E920, 0.1-0.5 parts of an antioxidant 1010, 0.1-0.5 parts of an antioxidant 168, 0.3-0.5 parts of an ultraviolet resistant agent UV-531, 0.03-0.08 parts of diffusion powder EBS, 0.04-0.08 parts of ultramarine blue powder, 0.02-0.04 parts of iron oxide red powder, and 0.005-0.01 parts of high temperature resistant fluorescein powder. All performance indexes of the PC/GF alloy for the housing of an intelligent water meter reach or exceed standards of a national water reticulation system, and the PC/GF alloy which has the characteristics of high performance, high shock resistance, high stability, good cold resistance, stable body, high toughness, standard compliant color, and accordance of environmentally friendly standards and the like can be applied to cold regions.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to the intellectual water meter housing and use polymeric material field, be specifically related to a kind of intellectual water meter housing that utilizes the polycarbonate regenerated material preparation with polycarbonate/spun glass Alloy And Preparation Method.
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.
Spun glass (GF) joins among the PC, but the physical mechanical rigidity of strongthener.
Because polycarbonate is a material relatively commonly used, so 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 cause environmental pollution, and take land-fill method, and the refractory organics of PC also can cause very big harm to environment, and present this mode progressively is being 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, thus intellectual water meter owing in outdoor placement its winter hardiness is had higher requirements for a long time, this just has higher requirement to the winter hardiness of intellectual water meter housing material therefor.
Summary of the invention
The objective of the invention is to the deficiency to prior art, provide a kind of with polycarbonate raw material and polycarbonate regenerated material be staple, intellectual water meter housing with characteristics such as high-performance, high-impact, high stability, environmental protection and winter hardiness are good is with polycarbonate/spun glass alloy.
Another object of the present invention is to provide the preparation method of above-mentioned intellectual water meter housing with polycarbonate/spun glass alloy.
Above-mentioned purpose of the present invention is achieved through following scheme:
A kind of intellectual water meter housing is with polycarbonate/spun glass alloy, and its composition of raw materials is made up of each component of following parts by weight:
30～50 parts of polycarbonate;
30～50 parts of polycarbonate regenerated materials;
0.5～2 part of titanium oxide;
9.5～11.5 parts in spun glass;
2～6 parts of cold-resistant agent E920;
0.1～0.5 part of antioxidant 1010;
168 0.1～0.5 part in oxidation inhibitor;
0.3～0.5 part of anti UV agent UV-531;
0.03～0.08 part of spread powder EBS;
0.04～0.08 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;
Above-mentioned polycarbonate 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 the intellectual water meter housing has certain color requirement; Therefore; Intellectual water meter housing of the present invention is with in polycarbonate/spun glass 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.
Above-mentioned cold-resistant agent E920 plays the effect of strengthening the cold-resistant stability of alloy in the present invention.
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 overcome polycarbonate variable color under uviolizing, modification and easy aged effect.
Above-mentioned spread powder EBS is the commercially available prod, plays effect lubricated, diffusion in the present invention.
Above-mentioned ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are commercially available toner, and the collocation of these three kinds of toners can mix the color of water meter case; Ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner adopt the commercially available prod to get final product.
Above-mentioned intellectual water meter housing is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/spun glass alloy; Send in the twin screw extruder after polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner mixed; Melting mixing under 240～290 ℃ temperature; Cool off through tank; Introduce dicing machine and carry out the pelletizing operation, collect pellet and be intellectual water meter housing of the present invention with polycarbonate/spun glass alloy.
Among the above-mentioned preparation method; Polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are mixed, be meant under 650～1300 rev/mins rotating speed polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are mixed; 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 240～290 ℃ 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.
Above-mentioned preparation gained intellectual water meter housing is carried out performance test with polycarbonate/spun glass alloy; The result finds that this intellectual water meter housing all meets or exceeds the standard of national water reticulation system with polycarbonate/each item performance index of spun glass alloy; Have that high-performance, high-impact, high stability, winter hardiness are good, the type body stable, toughness is high, color and luster conformance with standard and meet characteristics such as environmental protection standard, applicable to cold district.
Compared with prior art, the present invention has following beneficial effect:
1. intellectual water meter housing of the present invention is with polycarbonate/spun glass alloy; Adopted the PC reworked material to replace most PC raw material in its raw material, in order to guarantee the excellent property of the finished product, 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 the PC reworked material also can prepare the polycarbonate of excellent property/spun glass alloy, is national save energy, is again environmental friendly regenerated resource recycling; Energy-conservation, reduction of discharging, environmental friendly regenerated that whole process is accomplished is for national save energy is contributed;
2. intellectual water meter housing of the present invention is with polycarbonate/spun glass alloy, and its each item performance index all meet or exceed the standard of materials requirement of national water reticulation system to water meter case, and it is big to have solved pure raw materials viscosity; Poor adhesion to metal; Shortcomings such as mobile difference and processing difficulties have also solved the existence of PC raw material and have been easy to stress cracking, and stability is low; Relatively more responsive for breach, and the not good enough problems such as [6 ~ 8] of wear resistance;
3. stretching of polycarbonate raw material drawn the about 64MPa of intensity, the about 2300Mpa of modulus in flexure; And intellectual water meter housing of the present invention is with polycarbonate/spun glass alloy, and it is stretched and draws intensity to reach 730kg/cm
2, bending modulus reaches 31000kg/cm
2, and product to reach the type body stable, be to meet the most stable intellectual water meter case material at present both at home and abroad most;
4. intellectual water meter housing of the present invention is with polycarbonate/spun glass alloy; Emphasis is studied the winter hardiness of alloy; After multiple cold-resistant agent is screened; Obtain the best cold-resistant agent E920 of winter hardiness effect, thereby guaranteed the high winter hardiness of alloy, the intellectual water meter housing for preparing with this alloy can guarantee that intellectual water meter also is difficult for impaired in the cold district use;
5. intellectual water meter housing of the present invention is with the preparation method of polycarbonate/spun glass 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 intellectual water meter housing of present embodiment is with polycarbonate/spun glass alloy, and its composition of raw materials is made up of each component of following parts by weight:
33 parts of polycarbonate;
50 parts of polycarbonate regenerated materials;
2 parts of titanium oxide;
10 parts in spun glass;
4 parts of cold-resistant agent E920;
0.5 part of antioxidant 1010;
168 0.5 parts in oxidation inhibitor;
0.3 part of anti UV agent UV-531;
0.08 part of spread powder EBS;
0.08 part of ultramarine blue toner;
0.04 part of red iron oxide toner;
0.01 part of high temperature resistant fluorescent yellow toner;
Above-mentioned polycarbonate regenerated material adopts dark colour polycarbonate regenerated material such as do not have black, dark blue or bright red.
Present embodiment intellectual water meter housing is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/spun glass alloy; Polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are put into high-speed mixer; Send in the twin screw extruder with after 1300 rev/mins mix; The twin screw extruder screw speed is 400rpm; Melting mixing under 250 ℃ temperature; 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 intellectual water meter housing that the collection pellet is present embodiment is with polycarbonate/spun glass alloy.
Adopt the ASTM international standard that the intellectual water meter housing that present embodiment prepares is carried out performance test with polycarbonate/spun glass alloy, the result is as shown in table 1.
Table 1 intellectual water meter housing is with the The performance test results of polycarbonate/spun glass alloy
| Character | Method | Unit | Data |
| Melting index | ASTM D798 | g/10min | 31 |
| Proportion | ASTM D792 | — | 1.27 |
| Mould shrinks | ASTM D955 | % | 0.3～0.5 |
| Tensile strength | ASTM D638 | Kg/c㎡ | 730 |
| Flexural strength | ASTM D638 | Kg/c㎡ | 1140 |
| Unit elongation | ?ASTM D90 | % | 6.3 |
| Bending modulus | ASTM D90 | Kg/c㎡ | 31000 |
| Notched Izod impact strength (1/8 ") (40 ℃) | ASTM D256 | Kg·㎝/㎝ | 8.5 |
| Notched Izod impact strength (1/8 ") (23 ℃) | ASTM D256 | Kg·㎝/㎝ | 14 |
| Heat-drawn wire | ASTM D648 | ℃ | 125 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Drying temperature | — | ℃ | 120 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240～290 |
| Suggestion mould temperature | — | ℃ | 110 |
Can find out by table 1; The intellectual water meter housing of present embodiment all reaches the standard of materials requirement of national water reticulation system to cold-resistant water meter case with each item performance index of polycarbonate/spun glass alloy; And under-40 ℃ condition; Its notched Izod impact strength is also fine, can satisfy the requirement of cold district to the intellectual water meter material fully, has realized energy-saving and emission-reduction, environmental protection and cold-resistant goal of the invention.
Embodiment 2
A kind of intellectual water meter housing of present embodiment is with polycarbonate/spun glass alloy, and its composition of raw materials is made up of each component of following parts by weight:
50 parts of polycarbonate;
32 parts of polycarbonate regenerated materials;
2 parts of titanium oxide;
10 parts in spun glass;
5 parts of cold-resistant agent E920;
0.3 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;
0.08 part of ultramarine blue toner;
0.03 part of red iron oxide toner;
0.01 part of high temperature resistant fluorescent yellow toner;
Above-mentioned polycarbonate regenerated material adopts dark colour polycarbonate regenerated material such as do not have black, dark blue or bright red.
Present embodiment intellectual water meter housing is according to the above-mentioned raw materials prescription with the preparation method of polycarbonate/spun glass alloy; Polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are put into high-speed mixer; Send in the twin screw extruder with after 1300 rev/mins mix; The twin screw extruder screw speed is 400rpm; Melting mixing under 260 ℃ temperature; 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 900rpm, and the intellectual water meter housing that the collection pellet is present embodiment is with polycarbonate/spun glass alloy.
Adopt the ASTM international standard that the intellectual water meter housing that present embodiment prepares is carried out performance test with polycarbonate/spun glass alloy, the result is as shown in table 2.
Table 2 intellectual water meter housing is with the The performance test results of polycarbonate/spun glass alloy
| Character | Method | Unit | Data |
| Melting index | ASTM D798 | g/10min | 31 |
| Proportion | ASTM D792 | — | 1.26 |
| Mould shrinks | ASTM D955 | % | 0.3～0.5 |
| Tensile strength | ASTM D638 | Kg/c㎡ | 730 |
| Flexural strength | ASTM D638 | Kg/c㎡ | 1150 |
| Unit elongation | ?ASTM D90 | % | 6.3 |
| Bending modulus | ASTM D90 | Kg/c㎡ | 31000 |
| Notched Izod impact strength (1/8 ") (40 ℃) | ASTM D256 | Kg·㎝/㎝ | 8.6 |
| Notched Izod impact strength (1/8 ") (23 ℃) | ASTM D256 | Kg·㎝/㎝ | 15 |
| Heat-drawn wire | ASTM D648 | ℃ | 125 |
| Flame resistivity | UL94 | (1/8") | V0 |
| Drying temperature | — | ℃ | 120 |
| Time of drying | — | HR | 4 |
| Melt temperature | — | ℃ | 240～290 |
| Suggestion mould temperature | — | ℃ | 110 |
Can find out by table 2; The intellectual water meter housing of present embodiment all reaches the standard of materials requirement of national water reticulation system to cold-resistant water meter case with each item performance index of polycarbonate/spun glass alloy; And under-40 ℃ condition; Its notched Izod impact strength is also fine, can satisfy the requirement of cold district to the intellectual water meter material fully, has realized energy-saving and emission-reduction, environmental protection and cold-resistant goal of the invention.
Embodiment 3
The intellectual water meter housing of present embodiment is with polycarbonate/spun glass 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 intellectual water meter housing of present embodiment is with polycarbonate/spun glass 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 intellectual water meter housing of embodiment 3 is tested with the shock strength that polycarbonate/spun glass alloy all carries out under 23 ℃ and-40 ℃ with the intellectual water meter housing of polycarbonate/spun glass alloy and embodiment 4, the test result of result and embodiment 2 compared:
1, the intellectual water meter housing of embodiment 2 is with polycarbonate/spun glass alloy
(1/8 ") is 15 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 8.6Kg ㎝/㎝ to notched Izod impact strength under-40 ℃.
2, the intellectual water meter housing of embodiment 3 is with polycarbonate/spun glass alloy
(1/8 ") is 12 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 5 Kg ㎝/㎝ to notched Izod impact strength under-40 ℃.
3, the intellectual water meter housing of embodiment 4 is with polycarbonate/spun glass alloy
(1/8 ") is 12 Kg ㎝/㎝ to notched Izod impact strength under 23 ℃;
(1/8 ") is 4.9Kg ㎝/㎝ to notched Izod impact strength under-40 ℃.
Can find out that from The above results with polycarbonate/spun glass alloy, its winter hardiness obviously is superior to other two kinds, is adapted at the cold district use with the intellectual water meter housing of cold-resistant agent E920 preparation.
Claims (1)
1. an intellectual water meter housing is with polycarbonate/spun glass alloy, it is characterized in that this intellectual water meter housing is made up of each component of following parts by weight with polycarbonate/spun glass alloy materials prescription:
30～50 parts of polycarbonate;
30～50 parts of polycarbonate regenerated materials;
0.5～2 part of titanium oxide;
9.5～11.5 parts in spun glass;
2～6 parts of cold-resistant agent E920;
0.1～0.5 part of antioxidant 1010;
168 0.1～0.5 part in oxidation inhibitor;
0.3～0.5 part of anti UV agent UV-531;
0.03～0.08 part of spread powder EBS;
0.04～0.08 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.
According to the said intellectual water meter housing of claim 1 with polycarbonate/spun glass alloy, it is characterized in that said polycarbonate regenerated material is not for having the polycarbonate regenerated material of black, dark blue or large red.
3. claim 1 or 2 said intellectual water meter housings are with the preparation method of polycarbonate/spun glass alloy; It is characterized in that this preparation method sends in the twin screw extruder after according to the said composition of raw materials of claim 1 polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner being mixed; Melting mixing under 240～290 ℃ 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 the intellectual water meter housing with polycarbonate/spun glass alloy.
4. according to the preparation method of the said intellectual water meter housing of claim 3 with polycarbonate/spun glass alloy; It is characterized in that said polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner being mixed, be meant under 650～1300 rev/mins rotating speed polycarbonate, polycarbonate regenerated material, titanium oxide, spun glass, cold-resistant agent E920, antioxidant 1010, oxidation inhibitor 168, anti UV agent UV-531, spread powder EBS, ultramarine blue toner, red iron oxide toner and high temperature resistant fluorescent yellow toner are mixed.
5. according to the preparation method of the said intellectual water meter housing of claim 3 with polycarbonate/spun glass alloy, the rotating speed that it is characterized in that said twin screw extruder is 250～400rpm.
6. according to the preparation method of the said intellectual water meter housing of claim 3 with polycarbonate/spun glass alloy, used tank temperature is 60～80 ℃ when it is characterized in that said tank cooling.
7. according to the preparation method of the said intellectual water meter housing of claim 3 with polycarbonate/spun glass alloy, the rotating speed that it is characterized in that said dicing machine is 600～900rpm.
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| CN105949612A (en) * | 2016-05-13 | 2016-09-21 | 徐怀洪 | Plastic casing for intelligent water meter |
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| CN111457980B (en) * | 2020-04-15 | 2022-07-01 | 沈阳佳德联益能源科技股份有限公司 | Anti-freezing water meter |
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| JP特表2009526898A 2009.07.23 |
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