CN104448755A - Carbon fiber reinforced resin composite material, use thereof and preparation method of rubber frame of electronic equipment enclosure and/or module - Google Patents
Carbon fiber reinforced resin composite material, use thereof and preparation method of rubber frame of electronic equipment enclosure and/or module Download PDFInfo
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Abstract
The invention discloses a carbon fiber reinforced resin composite material, use thereof and a preparation method of a rubber frame of an electronic equipment enclosure and/or a module, and relates to the technical field of carbon fiber reinforced resin composite materials. A product injection-molded by the carbon fiber reinforced resin composite material can not only meet the requirements of high rigidity and high dimensional stability, but also obtain high-light spraying-free effects. The carbon fiber reinforced resin composite material is prepared from the following components: 15-25wt% of carbon fibers, 50-70wt% of PC+ABS alloy, 10-20wt% of a smoothing agent, 2-4wt% of a flexibilizer and 0.3-0.5wt% of an antioxidant, wherein the melt index of the PC+ABS alloy is greater than and equal to 40. The carbon fiber reinforced resin composite material disclosed by the invention is applicable to the injection molding of thin-wall products.
Description
Technical field
The present invention relates to carbon fiber-reinforced resin composite materials technical field, particularly relate to the preparation method of the glue frame of a kind of carbon fiber-reinforced resin composite materials and uses thereof, electronic device shell and/or module.
Background technology
New material technology development on TV and application are often with the change close association of tv product structural form.In recent years, TV structure form carries out noticeable change with rapid changepl. never-ending changes and improvements, and the variation tendency of structural form is very clear, and namely ultra-narrow is ultra-thin, needs to coordinate the ultra-thin and ultra-narrow design carrying out module, front and rear casing.Therefore need to carry out height that is thinning, that cancel or reduce stiffening web to the wall thickness of product, the change of these designer trends, if still by former material solution, the rigidity of material and dimensional stability can not meet the design requirements of parts.
Therefore, need the structural form change coordinating product, develop the material of high rigidity high-dimensional stability.In currently available technology, the material solution of comparative maturity mainly contains: 1) carbon fiber reinforced resin material scheme, the program normally by resin-coating on carbon fiber sticky cloth, prepare thin-wall product by hot-forming; 2) galss fiber reinforced resin material solution, the program normally by the matrix material that glass fibre and resin material are mixed to form, prepares thin-wall product by injection moulding.
But, scheme 1 of the prior art) usually can only be used for hot-forming, although the product obtained has high rigidity and high-dimensional stability, the product visual appearance after hot-forming is poor, usually needs aftertreatment; And scheme 2) product that obtains, although appearance effect is better, the rigidity of glass-fibre reinforced resin material and dimensional stability cannot meet the requirement of thin-wall product.
Summary of the invention
Main purpose of the present invention is, the preparation method of the glue frame of a kind of carbon fiber-reinforced resin composite materials and uses thereof, electronic device shell and/or module is provided, the product of this carbon fiber-reinforced resin composite materials injection moulding can meet the requirement of high rigidity high-dimensional stability, can obtain again high light and exempt to spray effect.
For achieving the above object, the present invention adopts following technical scheme:
On the one hand, the invention provides a kind of carbon fiber-reinforced resin composite materials, comprise the antioxidant of the carbon fiber of 15 ~ 25wt%, the PC+ABS alloy of 50 ~ 70wt%, the smoothing agent of 10 ~ 20wt%, the toughner of 2 ~ 4wt% and 0.3 ~ 0.5wt%; Wherein, the melting index of described PC+ABS alloy is more than or equal to 40.
On the other hand, the embodiment of the present invention additionally provides the purposes of the carbon fiber-reinforced resin composite materials described in a kind of embodiment of the present invention, and wherein, this matrix material can be used in the glue frame of injection moulding electronic device shell and/or module.
Again on the one hand, the embodiment of the present invention additionally provides the preparation method of the glue frame of a kind of electronic device shell and/or module, comprising:
Carbon fiber-reinforced resin composite materials described in the embodiment of the present invention is dried material 2 ~ 4 hours at 80 ~ 90 DEG C;
Described carbon fiber-reinforced resin composite materials after drying material is carried out plastifying and melting;
By the described carbon fiber-reinforced resin composite materials of melting in the mould that surface temperature is 100 ~ 170 DEG C injection moulding to obtain the glue frame of electronic device shell and/or module.
The preparation method of the glue frame of carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides and uses thereof, electronic device shell and/or module, comprise carbon fiber and PC+ABS alloy, carbon fiber effectively enhances engineering plastic alloy, improves the strength and stiffness of matrix material; The melting index of PC+ABS alloy is more than or equal to 40, its mobility is higher, fill when can avoid injection moulding and welding bad, also help the dispersiveness the orientation reducing carbon fiber that improve carbon fiber, thus restrained effectively the trend that carbon fiber migrates to surface, overcome outward appearance floating fine; The interpolation of smoothing agent, improves the surface gloss of this matrix material and further increases the mobility of this matrix material, and the PC+ABS alloy that mobility is higher and smoothing agent synergy, obtain the injecting products that high light exempts to spray effect; The interpolation of toughner improves the toughness of this matrix material; The interpolation of antioxidant, effectively prevents under higher injection temperature (such as 250 DEG C), the oxidative degradation of resin matrix and PC+ABS alloy, thus ensure that carrying out smoothly of injection moulding process; Therefore, the requirement of high rigidity high-dimensional stability can be met by the product of this matrix material injection moulding, high light can be obtained again and exempt to spray effect, and there is certain toughness, meet the toughness requirements in use procedure, and carrying out smoothly of injection moulding process can be ensured.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiments provide a kind of carbon fiber-reinforced resin composite materials, comprise the antioxidant of the carbon fiber of 15 ~ 25wt%, the PC+ABS alloy of 50 ~ 70wt%, the smoothing agent of 10 ~ 20wt%, the toughner of 2 ~ 4wt% and 0.3 ~ 0.5wt%; Wherein, the melting index of described PC+ABS alloy is more than or equal to 40.
The carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides, comprise carbon fiber and PC+ABS alloy, carbon fiber effectively enhances PC+ABS alloy, improves the strength and stiffness of matrix material; The melting index of PC+ABS alloy is more than or equal to 40, its mobility is higher, fill when can avoid injection moulding and welding bad, also help the dispersiveness the orientation reducing carbon fiber that improve carbon fiber, thus restrained effectively the trend that carbon fiber migrates to surface, overcome outward appearance floating fine; The interpolation of smoothing agent, improves the surface gloss of this matrix material, and further increases the mobility of this matrix material, and the PC+ABS alloy that mobility is higher and smoothing agent synergy, obtain the injecting products that high light exempts to spray effect; The interpolation of toughner improves the toughness of this matrix material; The interpolation of antioxidant, effectively prevents under higher injection temperature (such as 250 DEG C), the oxidative degradation of resin matrix and PC+ABS alloy, thus ensure that carrying out smoothly of injection moulding process; Therefore, the requirement of high rigidity high-dimensional stability can be met by the product of this matrix material injection moulding, high light can be obtained again and exempt to spray effect, and there is certain toughness, meet the toughness requirements in use procedure, and carrying out smoothly of injection moulding process can be ensured.
It should be noted that, in the embodiment of the present invention, various raw material all can be obtained by commercially available mode.Particularly, carbon fiber can be 24K carbon fiber, and namely often restrainting carbon fiber bundle has 24000 carbon fibers, and the diameter of carbon fiber is approximately 8 μm, and the length-to-diameter ratio of carbon fiber is approximately 37.5-62.5.
The PC+ABS alloy used in the embodiment of the present invention is the good PC+ABS alloy of mobility; Such as, the melting index of this PC+ABS alloy can be more than or equal to 40, is such as 40,42,44,46,48,50 etc.; Preferably, the melting index of this PC+ABS alloy is more than or equal to 46.Particularly, this PC+ABS alloy can select the PC+ABS alloy of the 1017D model of Samsung first woolens, and its melting index is 46 (220 DEG C, 10kg).Like this, select the PC+ABS alloy of super-high fluidity, effectively can reduce trend that carbon fiber migrates to surface, to overcome outward appearance floating fine, thus obtain surface more smooth exempt from spray product.
It should be noted that, in the embodiment of the present invention, melting index uses the most frequently used testing standard ASTM D 1238 to carry out measuring, and the measuring instrument of this testing standard is liquation index meter (MeltIndexer), and the unit of melting index is g/10min.Concrete testing method is well-known to those skilled in the art, and therefore, the present invention is not described in detail at this.Smoothing agent can be polybutylene terephthalate PBT, to improve mobility and the surface gloss of carbon fiber-reinforced resin composite materials.
Toughner can be ethylene-methyl acrylate, such as, can select 24MA005 model, to improve the toughness of carbon fiber-reinforced resin composite materials, thus ensures in injecting products use or transportation not fragile.
Antioxidant can be the mixture of antioxidant 1076 and antioxidant 627.
Further, in carbon fiber-reinforced resin composite materials, the content of each component can be: carbon fiber 20 ~ 25wt%, PC+ABS alloy 53 ~ 61wt%, smoothing agent 14 ~ 16wt%, toughner 3 ~ 4wt%, antioxidant 0.3 ~ 0.5wt%, wherein, the antioxidant 627 of the antioxidant 1076,0.2 ~ 0.3wt% of 0.1 ~ 0.2wt% can be comprised in antioxidant.
In addition, except above-mentioned each component, in the carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides, other trace assistants can also be comprised, to improve the respective performances of this matrix material.
Such as, in this carbon fiber-reinforced resin composite materials, can also lubricant be comprised, to improve the lubricity of this matrix material further, improve surface effect; Particularly, this lubricant can be polyethylene terephtalate S.
In addition, can also comprise toner in this carbon fiber-reinforced resin composite materials, to regulate the color of this matrix material, be such as black, white, brown toner; Particularly, this toner can be M900 model.
Particularly, in the embodiment of the present invention, in carbon fiber-reinforced resin composite materials, the content of each component can be: carbon fiber 15 ~ 25wt%, PC+ABS alloy 50 ~ 70wt%, smoothing agent 10 ~ 20wt%, toughner 2 ~ 4wt%, antioxidant 0.3 ~ 0.5wt%, lubricant 0.5 ~ 1.0wt%, toner 0.3 ~ 0.7wt%.
Further, in carbon fiber-reinforced resin composite materials, the content of each component can be: carbon fiber 20 ~ 25wt%, PC+ABS alloy 54 ~ 61wt%, smoothing agent 14 ~ 16wt%, toughner 3 ~ 4wt%, antioxidant 0.3 ~ 0.5wt%, lubricant 0.7 ~ 1.0wt%, toner 0.3 ~ 0.4wt%, wherein, the antioxidant 627 of the antioxidant 1076,0.2 ~ 0.3wt% of 0.1 ~ 0.2wt% can be comprised in antioxidant.
The carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides, the product of injection moulding, while guarantee material high rigidity, high-dimensional stability, can also accomplish that high light exempts from the effect of spraying.
On the other hand, the embodiment of the present invention additionally provides the purposes of the either carbon fiber-resin composite that a kind of embodiment of the present invention provides, wherein, this matrix material can be used in the glue frame of injection moulding electronic device shell and/or module, the glue frame of such as television cabin, backlight module, the backboard etc. of backlight module.
Correspondingly, the embodiment of the present invention additionally provides the preparation method of the glue frame of a kind of electronic device shell and/or module, specifically comprises:
Any one carbon fiber-reinforced resin composite materials will be embodiments provided and at 80 ~ 90 DEG C, dry material 2 ~ 4 hours;
Carbon fiber-reinforced resin composite materials after drying material is carried out plastifying and melting; Particularly, this process can be: be added in the loading hopper of injection moulding machine by the carbon fiber-reinforced resin composite materials after drying material, setting injection moulding machine each section of temperature, thus plastifies and melting plastics;
By the carbon fiber-reinforced resin composite materials of melting in the mould that surface temperature is 100 ~ 170 DEG C injection moulding to obtain the glue frame of electronic device shell and/or module.
Below by specific embodiment, carbon fiber-reinforced resin composite materials provided by the invention is explained in further detail.
Comparative example 1
The PC+ABS alloy of the 1017D model of 15wt% glass fibre, 69.9wt%, 12wt% smoothing agent PBT, 2wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.5wt% lubricant PETS, 0.3wt% toner M900 are dropped in twin screw extruder respectively, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain galss fiber reinforced resin matrix material, packed for standby use after drying.
Comparative example 2
The common PC+ABS alloy of 15wt% carbon fiber, 69.9wt%, 12wt% smoothing agent PBT, 2wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.5wt% lubricant PETS, 0.3wt% toner M900 are dropped in twin screw extruder respectively, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain galss fiber reinforced resin matrix material, packed for standby use after drying; Wherein, the melting index of common PC+ABS alloy is 30 (220 DEG C, 10kg).
Comparative example 3
The PC+ABS alloy of the 1017D model of 15wt% carbon fiber, 81.9wt%, 2wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.5wt% lubricant PETS, 0.3wt% toner M900 are dropped in twin screw extruder respectively, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain galss fiber reinforced resin matrix material, packed for standby use after drying.
Embodiment 1
The PC+ABS alloy of the 1017D model of 15wt% carbon fiber, 69.9wt%, 12wt% smoothing agent PBT, 2wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.5wt% lubricant PETS, 0.3wt% toner M900 are fully mixed, drop into respectively in twin screw extruder, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain carbon fiber-reinforced resin composite materials, packed for standby use after drying.
Embodiment 2
The PC+ABS alloy of the 1017D model of 18wt% carbon fiber, 63.8wt%, 14wt% smoothing agent PBT, 3wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.6wt% lubricant PETS, 0.3wt% toner M900 are fully mixed, drop into respectively in twin screw extruder, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain carbon fiber-reinforced resin composite materials, packed for standby use after drying.
Embodiment 3
The PC+ABS alloy of the 1017D model of 20wt% carbon fiber, 60.7wt%, 15wt% smoothing agent PBT, 3wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,0.7wt% lubricant PETS, 0.3wt% toner M900 are fully mixed, drop into respectively in twin screw extruder, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain carbon fiber-reinforced resin composite materials, packed for standby use after drying.
Embodiment 4
The PC+ABS alloy of the 1017D model of 25wt% carbon fiber, 54.4wt%, 15wt% smoothing agent PBT, 4wt% toughner 24MA005,0.1wt% antioxidant 1076,0.2wt% antioxidant 627,1.0wt% lubricant PETS, 0.3wt% toner M900 are fully mixed, drop into respectively in twin screw extruder, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain carbon fiber-reinforced resin composite materials, packed for standby use after drying.
Embodiment 5
The PC+ABS alloy of the 1017D model of 25wt% carbon fiber, 50.5wt%, 20wt% smoothing agent PBT, 4wt% toughner 24MA005,0.2wt% antioxidant 1076,0.3wt% antioxidant 627 are fully mixed, drop into respectively in twin screw extruder, at 230 ~ 250 DEG C, use forcing machine to carry out extruding pelletization, obtain carbon fiber-reinforced resin composite materials, packed for standby use after drying.
Performance test
The product obtained in comparative example and embodiment 1 ~ 5 is injection molded into standard batten respectively, and respectively performance test is carried out to them.Wherein, test mode adopts method known in those skilled in the art, and the present invention is not described in detail this.Test condition and test result are in table 1:
Table 1
Remarks: the desired value in table 1 refers to the various performance index for meeting desired by 65 cun of 1.5mm thin-walled electronic device shells; CLTE value in table 1 refers to thermal linear expansion coefficient.
As shown in Table 1, the properties of the carbon fiber-reinforced resin composite materials of embodiment 1 ~ 5 is all better than the properties of the galss fiber reinforced resin matrix material of comparative example 1, it can thus be appreciated that, carbon fiber-reinforced resin composite materials prepared by the embodiment of the present invention is relative to galss fiber reinforced resin matrix material, there are higher strength and stiffness, and dimensional stability is better.
It should be noted that, the structural form of current tv product trends towards the ultra-thin development of ultra-narrow, such as, and 65 cun of TVs.For coordinating the development of tv product structural form, needing the ultra-thin and ultra-narrow design carrying out module, front and rear casing, such as needing design 65 cun of 1.5mm thin-walled television cabins.For ensureing the performance of 65 cun of TVs, list the various performance index desired by 65 cun of 1.5mm thin-walled television cabins in table 1, i.e. indices value.
In research process, contriver finds, the various materials of employing prior art cannot meet the indices value in table 1 substantially, thus greatly limit applying of tv product.
But, as shown in Table 1, the properties value of embodiment 3,4 is all higher than corresponding desired value, that is, embodiment 3,4 carbon fiber-reinforced resin composite materials meets the various performances needed for injection moulding 65 cun of 1.5mm thin-walled electronicss completely, this material being far from prior art is comparable, this carbon fiber-reinforced resin composite materials is compared to comparative example and various material of the prior art, considerably improve rigidity and dimensional stability, to the development of the ultra-thin tv product structural form of ultra-narrow, there is promotion progress.
In addition, from embodiment 1 ~ 5, by adjusting the content of each component, effectively can improve the intensity of carbon fiber-reinforced resin composite materials, rigidity and dimensional stability, thus make these carbon fiber-reinforced resin composite materials can be used in the casing of injection moulding 65 cun of 1.5mm thin-walled electronicss and reach its desired value required, obtain the thin-walled electronic device shell of high rigidity high-dimensional stability.
And, little with the mechanical impact of mobility to carbon fiber-reinforced resin composite materials of embodiment 1, PC+ABS alloy from comparative example 2; From comparative example 3 and embodiment 1, whether the interpolation of smoothing agent, also little to the mechanical impact of carbon fiber-reinforced resin composite materials.
Injection moulding thin-wall product
Respectively the carbon fiber-reinforced resin composite materials that above-mentioned comparative example 2,3 and embodiment 1,3,4 provide is injection molded into thin-wall product, such as thin-walled casing.
Injection moulding process and parameter as follows: carbon fiber-reinforced resin composite materials is dried material 3 hours at 85 DEG C, be added in the loading hopper of injection moulding machine, setting injection moulding machine each section of temperature is: 255 DEG C, nozzle, metering zone 245 DEG C, 230 DEG C, compression section, charging fluxing zone 230 DEG C, plastify and melting carbon fiber-reinforced resin composite materials; Supporting needs uses Emold mould (ensureing that die temperature at least can be raised to 160 DEG C), makes the temperature of die surface reach 120 DEG C, 140 DEG C and 160 DEG C respectively; Respectively the comparative example 2,3 of melting and the carbon fiber-reinforced resin composite materials of embodiment 1,3,4 are injected in the mould of differing temps, to obtain each carbon fiber casing.
Wherein, the high light appearance effect situation of carbon fiber casing that obtains of the carbon fiber-reinforced resin composite materials injection moulding of comparative example 2,3 and embodiment 1,3,4 is in table 2:
Table 2
| Sample | 140 DEG C of mould temperature | 160 DEG C of mould temperature |
| Comparative example 2 | Outward appearance is floating fine serious, cannot use | Outward appearance is floating fine serious, cannot use |
| Comparative example 3 | Outward appearance is floating fine serious, cannot use | Outward appearance is floating fine serious, cannot use |
| Embodiment 1 | Outward appearance without floating fine, can use substantially | Outward appearance without floating fine, can use substantially |
| Embodiment 3 | Outward appearance without floating fine, can use substantially | Outward appearance without floating fine, can use substantially |
| Embodiment 4 | Outward appearance is floating fine less, substantially can use | Outward appearance is floating fine less, substantially can use |
From comparative example 2 and embodiment 1, although the mechanical impact of the mobility of PC+ABS alloy to injecting products is little, but comparatively large on the appearance effect impact of product, when the common PC+ABS alloy that mobility is lower, the injecting products that high light exempts to spray effect substantially cannot be prepared.
From comparative example 3 and embodiment 1, although the interpolation of smoothing agent is little to the mechanical impact of injecting products, comparatively large on the appearance effect impact of product, when not adding smoothing agent, the injecting products that high light exempts to spray effect substantially cannot be prepared.
Visible, the carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides, the good PC+ABS alloy of mobility and smoothing agent act synergistically, and obtain high strength high rigidity high-dimensional stability, high light exempts to spray the injecting products of effect.
In addition, as shown in Table 2, when preparing the product of high light appearance effect, the thin walled carbon fiber casing that the carbon fiber-reinforced resin composite materials of embodiment 1,3 is prepared under 140 DEG C ~ 160 DEG C mould temperature, smooth in appearance substantially without floating fine, can reach the effect of exempting to spray, can meet volume production requirement; The thin walled carbon fiber casing that the carbon fiber-reinforced resin composite materials of embodiment 4 is prepared under 140 DEG C ~ 160 DEG C mould temperature, the essentially smooth floating fibre of outward appearance is less, substantially can reach and exempt to spray effect, substantially meet volume production requirement.
The appearance effect situation of the carbon fiber casing of the wire drawing that the carbon fiber-reinforced resin composite materials injection moulding of comparative example 2,3 and embodiment 1,3,4 obtains and/or leather pattern effect is in table 3:
Table 3
Similarly, from table 1 and table 3, although the mobility of PC+ABS alloy, the interpolation of smoothing agent are little to the mechanical impact of injecting products, larger on the appearance effect impact of product; Visible, the carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides, the good PC+ABS alloy of mobility and smoothing agent act synergistically, and obtain high strength high rigidity high-dimensional stability, injecting products that high light freely sprays effect.
In addition, as shown in Table 3, when preparing the product of wire drawing and/or dermatoglyph appearance effect, the thin walled carbon fiber casing that the carbon fiber-reinforced resin composite materials of embodiment 1,3 is prepared under 120 DEG C ~ 160 DEG C mould temperature, outward appearance is substantially without floating fine, required wire drawing and/or leather pattern effect can be realized, can reach and exempt from spray effect and volume production requirement can be met; The thin walled carbon fiber casing that the carbon fiber-reinforced resin composite materials of embodiment 4 is prepared under 120 DEG C of mould temperature, outward appearance is substantially without floating fine, required wire drawing and/or leather pattern effect can be realized, can reach and exempt from spray effect and volume production requirement can be met, under 140 DEG C ~ 160 DEG C mould temperature, outward appearance is floating fine less, and the wire drawing needed for basic realization and/or leather pattern effect, substantially can reach and exempt from spray effect and substantially meet volume production requirement.
Comprehensively above-mentioned, compared to using the poor PC+ABS alloy of mobility and not adding the formula of smoothing agent, the embodiment of the present invention have selected the good PC+ABS alloy of mobility, and with the addition of a certain amount of smoothing agent, what the carbon fiber-reinforced resin composite materials formed can not only prepare high light appearance effect exempts from the wall product that gushs, that can also prepare not high light exempts from the wall product that gushs, and such as has the looking products of wire drawing or leather pattern effect.
And, in the actual effect of the television cabin of the carbon fiber-reinforced resin composite materials injection moulding acquisition of embodiment 3, the high light face of casing and wire drawing and leather pattern effect can obtain good appearance effect, after tested, the glossiness > 88 (60 ° enter angular) in high light face, during the viewing of more than 0.3mm distance, can't see the floating fibre on casing surface.And in thin-wall product prepared by the material of prior art, above-mentioned effect cannot be reached at all.
According to above embodiment 1 ~ 5 test, batten performance test data, injection moulding checking situation and cost analysis, can find out: the carbon fiber-reinforced resin composite materials that the embodiment of the present invention provides is meeting tv product intensity, high rigidity, while dimensional stability, also having and exempt from preferably to spray appearance effect, is the injection moulding carbon fiber scheme of a excellent combination property.
The structural form variation tendency of the ultra-thin ultra-narrow of tv product, needs that the backboard of casing or module possesses ultra-thin high strength high rigidity, high light exempts from the features such as spray.Carbon fiber specific tenacity is 7 times of steel, and specific modulus (high rigidity) is 5 times of steel, and the intensity of its brilliance and rigidity just require to have agreeing with of height with TV structure.And, the embodiment of the present invention, by a certain proportion of carbon fiber, the auxiliary agent smoothing agent improving mobility, high light auxiliary agent lubricant and toughner being added in the good PC+ABS alloy material of mobility, forming a kind of injection grade height light meeting large size television front shell and the requirement of backboard module over-all properties and exempts to spray high rigidity, high workability carbon-fibre composite scheme.
Use the Formula Development of carbon fibre reinforced composite a lot of in current industry, but no matter be hot pressing carbon fiber scheme or injection moulding carbon fiber scheme, the existence due to carbon fiber does not accomplish that high light exempts to spray effect.Through contriver's research, also do not have successful scheme can eliminate floating high light that is fine, that realize product in current industry while meeting high rigidity high-dimensional stability and exempt from spray.And the advantage of the embodiment of the present invention is, while guarantee material high rigidity, high-dimensional stability, realizes high light exempt to spray effect.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (9)
1. a carbon fiber-reinforced resin composite materials, is characterized in that, comprises the antioxidant of the carbon fiber of 15 ~ 25wt%, the PC+ABS alloy of 50 ~ 70wt%, the smoothing agent of 10 ~ 20wt%, the toughner of 2 ~ 4wt% and 0.3 ~ 0.5wt%;
Wherein, the melting index of described PC+ABS alloy is more than or equal to 40.
2. carbon fiber-reinforced resin composite materials according to claim 1, is characterized in that, described carbon fiber-reinforced resin composite materials also comprises lubricant and toner; Described lubricant is 0.5 ~ 1.0wt%, and described toner is 0.3 ~ 0.7wt%.
3. carbon fiber-reinforced resin composite materials according to claim 2, it is characterized in that, described carbon fiber is 20 ~ 25wt%, described PC+ABS alloy is 54 ~ 61wt%, described smoothing agent is 14 ~ 16wt%, and described toughner is 3 ~ 4wt%, and described antioxidant is 0.3 ~ 0.5wt%, described lubricant is 0.7 ~ 1.0wt%, and described toner is 0.3 ~ 0.4wt%.
4. the carbon fiber-reinforced resin composite materials according to any one of claims 1 to 3, is characterized in that, the melting index of described PC+ABS alloy is more than or equal to 46.
5. the carbon fiber-reinforced resin composite materials according to any one of claims 1 to 3, is characterized in that, described carbon fiber is 24K carbon fiber.
6. the carbon fiber-reinforced resin composite materials according to any one of claims 1 to 3, is characterized in that, described smoothing agent is polybutylene terephthalate.
7. the carbon fiber-reinforced resin composite materials according to any one of claims 1 to 3, is characterized in that, described toughner is ethylene-methyl acrylate.
8. a purposes for the carbon fiber-reinforced resin composite materials as described in any one of claim 1-7, is characterized in that, for the glue frame of injection moulding electronic device shell and/or module.
9. a preparation method for the glue frame of electronic device shell and/or module, is characterized in that, comprising:
Carbon fiber-reinforced resin composite materials described in any one of claim 1 ~ 7 is dried material 2 ~ 4 hours at 80 ~ 90 DEG C;
Described carbon fiber-reinforced resin composite materials after drying material is carried out plastifying and melting;
By the described carbon fiber-reinforced resin composite materials of melting in the mould that surface temperature is 100 ~ 170 DEG C injection moulding to obtain the glue frame of electronic device shell and/or module.
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