CN103265801A - Cold-resistant anti-corrosion glass fiber reinforced polycarbonate composite material as well as preparation method and applications thereof - Google Patents
Cold-resistant anti-corrosion glass fiber reinforced polycarbonate composite material as well as preparation method and applications thereof Download PDFInfo
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Abstract
The invention discloses a cold-resistant anti-corrosion glass fiber reinforced polycarbonate composite material as well as a preparation method and applications thereof. According to the formula, the polycarbonate composite material comprises raw materials: polycarbonate, glass fiber, an antioxidant, a flexibilizer, an anti-ultraviolet agent, a lubricant, and an anti-corrosion agent. The composite material has the characteristics of high performance, high cold resistance, hihg corrosion resistance, high stability, electrostatic resistance and the like, is applicable to preparation of anti-impact and high-strength parts, protective covers, precise instrument parts, plugging elements, high-frequency tuners, printed circuit sockets, intelligent electric meter shells and terminal boards in mechanical industry.
Description
Technical field
The present invention relates to polymeric material field, relate in particular to the glass fiber reinforced polycarbonate matrix material, be specifically related to a kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material and preparation method thereof.
Background technology
Polycarbonate (PC) is the superior engineering plastics of a kind of over-all properties, it also is the fastest general engineering plastic of growth in recent years, has excellent impact toughness, dimensional stability, electric insulating quality, creep resistant, weathering resistance, advantages such as the transparency and nontoxicity, be widely used in automobile at present, electric, building, office equipment, packing, sports equipment, fields such as health care, along with deepening continuously of modification technology research, be extended to aerospace just rapidly, computer, high-tech areas such as CD, but also there are some shortcomings in it, and is poor as processing fluidity, be easy to stress cracking, relatively sensitivity and wear resistance are good enough etc. to breach.
Characteristics such as glass fibre (GF) has tensile strength height, coefficient of elasticity height, absorb that impact energy is big, chemical resistant properties is good, absorptivity is little, good heat resistance, processibility are good, cheap, belong to typical superior prod, mainly as electrically insulating material, industrial filter material, anticorrosion, moistureproof, heat insulation, sound insulation, cushioning material.Main strongthener as mechanicals.
Glass fiber reinforced polycarbonate is as a kind of superior prod with cutting edge technology characteristics, it has remarkable advantages such as intensity height, chemical resistant properties excellence, have important marketable value for this Products Development research, play an important role to promoting national economic development.
Summary of the invention
The object of the present invention is to provide a kind of low temperature resistant and etch-proof glass fiber reinforced polycarbonate matrix material that has.
Another object of the present invention provides the preparation method that above-mentioned glass fibre strengthens the carbonic ether matrix material.
Another object of the present invention is to provide the application of above-mentioned cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material.
Above-mentioned purpose of the present invention is achieved by following scheme:
A kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material, its composition of raw materials is made up of each component of following parts by weight:
55～81 parts of polycarbonate;
8～20 parts in glass fibre;
0.2～0.8 part in oxidation inhibitor;
0.1～0.5 part of lubricant PETS;
0.1～0.5 part of ultraviolet-resistant absorbent UV-234;
2～5 parts of toughner EMA;
1 2～8 parts of corrosion inhibitors;
Corrosion inhibitor 2 3-10 parts
5～10 parts of PET;
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chinese workers limited liability company produces, the METABLEN SX-006 that described corrosion inhibitor 1 produces for the beautiful sun of Mitsubishi, described corrosion inhibitor 2 is contained the ESL-P200 that chemical industry company limited produces for the Dongguan City select.
In the above-mentioned raw materials prescription, polycarbonate, glass fibre, oxidation inhibitor K21, lubricant PETS, ultraviolet-resistant absorbent UV-234, toughner EMA, METABLEN SX-006, ESL-P200 and PET are the commercially available prod.
In the above-mentioned raw materials, K21 has outstanding processing stability, can improve the flowability of polycarbonate article melt, plays the effect of inhibition product thermal destruction and oxidative degradation, prolongation product life in the present invention.Has good synergy with described UV light absorber UV-234.
UV light absorber UV-234 adopts the commercially available prod.The effective constituent of UV light absorber UV-234 is 2-(2'-hydroxyl-3', two (a of 5', the a-dimethyl benzyl) benzotriazole phenyl), can effectively absorb the ultraviolet ray of 250nm-340nm wave band, thereby the photocatalytic degradation that suppresses high molecular polymer, can act synergistically with oxidation inhibitor K21 of the present invention, effectively delay product aging, increase its work-ing life.
In the above-mentioned raw materials prescription, the Chinese of lubricant PETS is called pentaerythritol stearate, and it plays in the present invention and promotes the mixed uniformly effect of each feed composition, thereby makes the products obtained therefrom quality more even, improves the stability of product.
In the above-mentioned raw materials prescription, toughner EMA is the english abbreviation of ethylene-acrylate copolymer, and it plays the effect that strengthens the product shock-resistance in the present invention.
In the above-mentioned raw materials prescription, METABLEN SX-006 refers to the U.S. big Boulogne METABLEN SX-006 of the beautiful sun of Mitsubishi; U.S. big Boulogne METABLEN SX-006 has anti-very low temperature, weather-proof and assistance fp performance, has certain antiacid caustic corrosion effect.
In the above-mentioned raw materials, corrosion inhibitor 2 is contained the ESL-P200 that chemical industry company limited produces for the Dongguan City select, is typically used as toughness reinforcing, anti-impact modifier.
In the above-mentioned raw materials prescription, PET is the english abbreviation of polyethylene terephthalate, wherein plays the intensity that increases matrix material among the present invention, increases the consistency of each component in the prescription.
As a rule, described EMA only produces toughening effect to plastics at normal temperatures, and when temperature was low, its toughening effect was difficult to performance.Described METABLEN SX-006 is considered to the effect of competence exertion enhancing product shock resistance in 20-40 ℃ temperature range usually, when envrionment temperature is lower than-70 ℃, toughening effect to the glass fiber reinforced polycarbonate matrix material is very little, and its antiacid caustic corrosion effect instability.Described ESL-P200, PET are then used as common toughner.But the inventor finds in practice, introduce EMA, METABLEN SX-006, ESL-P200, PET to composition of raw materials of the present invention, and the consumption of appropriate mix, can give matrix material shock resistance, wear resisting property preferably in-70 ℃ ultra-low temperature surroundings, thoroughly overturn the technology prejudice of industry.In addition, the antiacid caustic corrosion performance that can significantly promote the prepared glass fiber reinforced polycarbonate matrix material of the present invention is used in the collocation of METABLEN SX-006, ESL-P200, makes it to obtain the two arbitrary independent use or the irrealizable antiacid caustic corrosion ability of other auxiliary agents of arranging in pairs or groups.
The present invention also provides the preparation method of above-mentioned cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material, and its step is as follows:
Send in the twin screw extruder after polycarbonate, glass fibre, oxidation inhibitor K21, lubricant PETS, ultraviolet-resistant absorbent UV-234, toughner EMA, toughner METABLEN SX-006 and PET, ESL-P200 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 cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material.
Among the above-mentioned preparation method polycarbonate, glass fibre, antioxidant 1010, oxidation inhibitor 168, lubricant PETS, ultraviolet-resistant absorbent UV-234, EMA, METABLEN SX-006, ESL-P200, PET being mixed, is under 650～1300 rev/mins rotating speed polycarbonate, glass fibre, antioxidant 1010, oxidation inhibitor 168, lubricant PETS, ultraviolet-resistant absorbent UV-234, EMA, METABLEN SX-006, ESL-P200, PET to be mixed; Adopting 650～1300 rev/mins rotating speed to stir, is because if stir and to mix badly too slowly, stirs too soon, and material is understood cracking.
Among the above-mentioned preparation method, the rotating speed of twin screw extruder is 250～450 rev/mins.
Among the above-mentioned preparation method, it is 240～290 ℃ that melting mixing adopts temperature.The inventor finds after deliberation: then mixing bad if the melting mixing temperature is too low, if temperature is too high, therefore material meeting cracking is 240～290 ℃ by the temperature of studying back selection melting mixing.
Among the above-mentioned preparation method, melt used tank temperature when tank cools off of being extruded by twin screw extruder is 60～80 ℃.The inventor is by discovering, the stable of tank cooling herein also can have certain influence to product, 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 easily bonds, therefore, after the tank temperature was optimized, it was 60～80 ℃ that the inventor selects the tank temperature for cold fuse-element.
Among the above-mentioned preparation method, the rotating speed of dicing machine is 600～900 rev/mins.The inventor is by 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 600～900 rev/mins.
Preferably, METABLEN SX-006 weight part is 8 parts in the described composition of raw materials, and the ESL-P200 weight part is 6 parts, and the EMA weight part is 5 parts, and the PET weight part is 10 parts.
Glass fiber reinforced polycarbonate matrix material of the present invention is carried out performance test, found that this matrix material can the anti-weak base of anti-strong acid, and shock resistance is very good, more excellent performance is also arranged in-70 ℃ ultra-low temperature surroundings, be applicable to industrial shock resistance and high-intensity component, shield cap, precision meter part, interconnecting devices, tuner, printed wiring socket, intelligent electric meter housing and the terminal row done of processing machinery.
Compared with prior art, the present invention has following beneficial effect:
Product provided by the present invention has stronger low temperature resistant, Corrosion Protection, still can keep higher physical strength and shock resistance in the extreme environment below-70 ℃ or in the environment that corrodes of common material such as strong acid, weak base, excellent performance, by the property height.Use the component of machine of product manufacturing of the present invention can be widely used in being conducive to improve the production/living condition of extremely frigid zones in low temperature environment and the high corrosive environment.
Embodiment
Below in conjunction with Comparative Examples, specific embodiment the present invention is done description further, but specific embodiment is not done any restriction to the present invention.
Comparative Examples 1
A kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of present embodiment, its composition of raw materials is made up of each component of following parts by weight:
79 parts of polycarbonate;
10 parts in glass fibre;
0.3 part of antioxidant 1010;
168 0.5 parts in oxidation inhibitor;
0.5 part of PETS;
0.5 part of UV-234;
5 parts of EMA;
10 parts of PET.
The glass fiber reinforced polycarbonate matrix material of this Comparative Examples is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in the table.
Comparative Examples 2
A kind of glass fiber reinforced polycarbonate matrix material of this Comparative Examples, its composition of raw materials is made up of each component of following parts by weight:
79 parts of polycarbonate;
10 parts in glass fibre;
0.5 part of oxidation inhibitor K21;
0.5 part of PETS;
0.5 part of UV-234;
5 parts of EMA;
10 parts of METABLEN SX-006.
The glass fiber reinforced polycarbonate matrix material of this Comparative Examples is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in the table.
Comparative Examples 3
A kind of glass fiber reinforced polycarbonate matrix material of this Comparative Examples, its composition of raw materials is made up of each component of following parts by weight:
79 parts of polycarbonate;
10 parts in glass fibre;
0.5 part of oxidation inhibitor K21;
0.5 part of PETS;
0.5 part of UV-234;
5 parts of EMA;
10 parts of ESL-P200.
The glass fiber reinforced polycarbonate matrix material of this Comparative Examples is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in the table.
Embodiment 1
A kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of present embodiment, its composition of raw materials is made up of each component of following parts by weight:
81 parts of polycarbonate;
20 parts in glass fibre;
0.5 part of oxidation inhibitor K21;
0.5 part of lubricant PETS;
0.5 part of ultraviolet-resistant absorbent UV-234;
5 parts of EMA;
8 parts of METABLEN SX-006;
6 parts of ESL-P200
10 parts of PET.
In the above-mentioned raw materials prescription, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET are the commercially available prod.
The preparation method of above-mentioned cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material comprises the steps:
Send in the twin screw extruder after under 1000 rev/mins rotating speed, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET being mixed; melting mixing under 280 ℃ temperature; after the gained melt is extruded by twin screw extruder; through 70 ℃ of tank coolings; introduce dicing machine and carry out the pelletizing operation, collect the cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material that pellet is present embodiment.
The rotating speed of above-mentioned twin screw extruder is 300 rev/mins.
The rotating speed of above-mentioned dicing machine is 600 rev/mins.
The glass fiber reinforced polycarbonate matrix material of present embodiment is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in table 1.
The anti-weak base The performance test results of the cold-resistant anti-strong acid of the glass fiber reinforced polycarbonate matrix material of table 1 embodiment 1
As can be seen from Table 1, compare with Comparative Examples, after low temperature (70 ℃) or strong acid weak base corrosion, the glass fiber reinforced polycarbonate performance of composites of present embodiment does not descend, keep good stretching, flexural strength, high shock strength meets the requirement as high performance engineering plastics, so the glass fiber reinforced polycarbonate matrix material of present embodiment has cold-resistant Corrosion Protection.
Embodiment 2
A kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of present embodiment, its composition of raw materials is made up of each component of following parts by weight:
55 parts of polycarbonate;
8 parts in glass fibre;
0.2 part of oxidation inhibitor K21;
0.1 part of lubricant PETS;
0.1 part of ultraviolet-resistant absorbent UV-234;
2 parts of EMA;
2 parts of METABLEN SX-006;
5 parts of PET;
3 parts of ESL-P200.
In the above-mentioned raw materials prescription, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET are the commercially available prod.
The preparation method of above-mentioned cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material comprises the steps:
Send in the twin screw extruder after under 800 rev/mins rotating speed, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET being mixed; melting mixing under 270 ℃ temperature; after the gained melt is extruded by twin screw extruder; through 60 ℃ of tank coolings; introduce dicing machine and carry out the pelletizing operation, collect the cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material that pellet is present embodiment.
The rotating speed of above-mentioned twin screw extruder is 450 rev/mins.
The rotating speed of above-mentioned dicing machine is 800 rev/mins.
The glass fiber reinforced polycarbonate matrix material of present embodiment is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in table 2.
The anti-weak base The performance test results of the cold-resistant anti-strong acid of the glass fiber reinforced polycarbonate matrix material of table 2 embodiment 2
As can be seen from Table 2, after low temperature (70 ℃) or strong acid weak base corrosion, the glass fiber reinforced polycarbonate performance of composites of comparing present embodiment with Comparative Examples does not descend, keep good stretching, flexural strength, high shock strength, meet the requirement as high performance engineering plastics, so the glass fiber reinforced polycarbonate matrix material of present embodiment has cold-resistant Corrosion Protection.
Embodiment 3
A kind of cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of present embodiment, its composition of raw materials is made up of each component of following parts by weight:
70 parts of polycarbonate;
15 parts in glass fibre;
0.8 part of oxidation inhibitor K21;
0.3 part of PETS;
0.3 part of ultraviolet-resistant absorbent UV-234;
3 parts of EMA;
5 parts of METABLEN SX-006;
3 parts of ESL-P200;
8 parts of PET.
In the above-mentioned raw materials prescription, in the above-mentioned raw materials prescription, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET are the commercially available prod.
The preparation method of above-mentioned cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material comprises the steps:
Send in the twin screw extruder after under 1000 rev/mins rotating speed, polycarbonate, glass fibre, oxidation inhibitor, PETS, UV-234, toughner EMA, METABLEN SX-006, ESL-P200, PET being mixed; melting mixing under 290 ℃ temperature; after the gained melt is extruded by twin screw extruder; through 80 ℃ of tank coolings; introduce dicing machine and carry out the pelletizing operation, collect the cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material that pellet is present embodiment.
The rotating speed of above-mentioned twin screw extruder is 250 rev/mins.
The rotating speed of above-mentioned dicing machine is 900 rev/mins.
The glass fiber reinforced polycarbonate matrix material of present embodiment is immersed in places-70 ℃ down or 98% vitriol oil (or 10% sodium hydroxide) solution after 30 minutes, adopt the ASTM international standard that it is carried out performance test, the result is as shown in table 3.
The anti-weak base The performance test results of the cold-resistant anti-strong acid of the glass fiber reinforced polycarbonate matrix material of table 3 embodiment 3
As can be seen from Table 3, after low temperature (70 ℃) or strong acid weak base corrosion, the glass fiber reinforced polycarbonate performance of composites of comparing present embodiment with Comparative Examples does not descend, keep good stretching, flexural strength, high shock strength, meet the requirement as high performance engineering plastics, so the glass fiber reinforced polycarbonate matrix material of present embodiment has cold-resistant Corrosion Protection.
More than be wherein specific implementation of the present invention, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to claim of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some changes, omission, modification, these apparent replacement forms all belong to protection scope of the present invention.
Claims (8)
1. cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material, its composition of raw materials is made up of each component of following parts by weight:
55～81 parts of polycarbonate;
8～20 parts in glass fibre;
0.2～0.8 part in oxidation inhibitor;
0.1～0.5 part of lubricant PETS;
0.1～0.5 part of ultraviolet-resistant absorbent UV-234;
2～5 parts of toughner EMA;
1 2～8 parts of corrosion inhibitors;
Corrosion inhibitor 2 3-10 parts
5～10 parts of PET;
Described oxidation inhibitor is the composite antioxidant K21 that Hongjiang City is prosperous and Chinese workers limited liability company produces, the METABLEN SX-006 that described corrosion inhibitor 1 produces for the beautiful sun of Mitsubishi, described corrosion inhibitor 2 is contained the ESL-P200 that chemical industry company limited produces for the Dongguan City select.
2. the preparation method of the described cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of claim 1; it is characterized in that this preparation method is according to the described composition of raw materials of claim 1; with polycarbonate; glass fibre; oxidation inhibitor K21; lubricant PETS; ultraviolet-resistant absorbent UV-234; toughner EMA; METABLEN SX-006; after mixing, ESL-P200 and PET send in the twin screw extruder; 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 cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material.
3. according to the described preparation method of claim 2, it is characterized in that among the described preparation method polycarbonate, glass fibre, antioxidant 1010, oxidation inhibitor 168, PETS, ultraviolet-resistant absorbent UV-234, toughner EMA, METABLEN SX-006, ESL-P200 and PET being mixed, is under 650～1300 rev/mins rotating speed polycarbonate, glass fibre, antioxidant 1010, oxidation inhibitor 168, PETS, ultraviolet-resistant absorbent UV-234, toughner EMA, METABLEN SX-006, ESL-P200 and PET to be mixed.
4. according to the described preparation method of claim 2, the rotating speed that it is characterized in that twin screw extruder among the described preparation method is 250～450 rev/mins.
5. according to the described preparation method of claim 2, used tank temperature is 60～80 ℃ when it is characterized in that described tank cooling.
6. according to the described preparation method of claim 2, the rotating speed that it is characterized in that described dicing machine is 500～900 rev/mins.
7. cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material according to claim 1, it is characterized in that: METABLEN SX-006 weight part is 8 parts in the described composition of raw materials, the ESL-P200 weight part is 6 parts, and the EMA weight part is 5 parts, and the PET weight part is 10 parts.
8. the described cold-resistant protection against corrosion glass fiber reinforced polycarbonate matrix material of claim 1 is in the industrial application of making shock resistance and high-intensity component, shield cap, precision meter part, interconnecting devices, tuner, printed wiring socket, intelligent electric meter housing and terminal row of processing machinery.
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| CN113698750A (en) * | 2021-08-17 | 2021-11-26 | 金发科技股份有限公司 | Polycarbonate material with good appearance and high recovery ratio and preparation method and application thereof |
| WO2023020396A1 (en) * | 2021-08-17 | 2023-02-23 | 金发科技股份有限公司 | Polycarbonate material having good appearance and high recycling rate, and preparation method therefor and use thereof |
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