CN113292836B - ABS (acrylonitrile butadiene styrene) and PC (polycarbonate) composite material as well as preparation method and application thereof - Google Patents
ABS (acrylonitrile butadiene styrene) and PC (polycarbonate) composite material as well as preparation method and application thereof Download PDFInfo
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Abstract
The application relates to the technical field of automobile parts, in particular to an ABS (acrylonitrile butadiene styrene) and PC (polycarbonate) composite material as well as a preparation method and application thereof. The ABS and PC composite material is prepared from the following raw materials in parts by weight: 50-65 parts of PC resin, 15-45 parts of ABS resin, 1-2 parts of compatible resin and 10-12 parts of color master batch, wherein the compatible resin is one or a composition of more of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, maleic anhydride grafted polypropylene and maleic anhydride grafted styrene. The preparation method of the ABS and PC composite material comprises the following steps: (1) mixing and granulating to obtain a coloring base material; (2) and mixing and injection molding to obtain the ABS and PC composite material. The ABS and PC composite material and the preparation method thereof have the advantage of reducing the possibility of whitening on the surface of a product.
Description
Technical Field
The application relates to the technical field of automobile parts, in particular to an ABS (acrylonitrile butadiene styrene) and PC (polycarbonate) composite material as well as a preparation method and application thereof.
Background
Polycarbonate (PC) is a commonly used engineering plastic, which has good mechanical properties, heat resistance and electrical properties, but has high melting temperature, is difficult to process and is prone to stress cracking due to high rigidity and steric hindrance of PC molecules. When the PC and the acrylonitrile/butadiene/styrene copolymer (ABS) resin are blended, the PC has the advantages of heat resistance, dimensional stability and mechanical property, low melt viscosity, good processing fluidity and the like, so that the ABS and PC composite material is widely applied to the fields of automobiles, machinery, household appliances, computers, communication equipment, office equipment and the like.
In the related technology, the traditional ABS and PC composite material is mainly prepared from the following raw materials in parts by weight: 50-65 parts of PC resin, 15-45 parts of ABS resin and 10-12 parts of color master batch. When the ABS and PC composite material needs to be prepared, the color master batch is directly added into the PC resin and the ABS resin, and then the mixture is melted, mixed and injected by an injection molding machine to obtain the product.
In view of the above-mentioned problems, the inventors believe that, because there is a certain difference between the melting temperature of the color masterbatch and the melting temperature of the PC resin and the ABS resin, the color masterbatch is easily decomposed at high temperature and high pressure during melt mixing by an injection molding machine, which may cause the surface of the product to be easily whitened.
Disclosure of Invention
In order to reduce the possibility of whitening on the surface of a product, the application provides an ABS and PC composite material, and a preparation method and application thereof.
In a first aspect, the present application provides an ABS/PC composite material, which adopts the following technical scheme:
an ABS and PC composite material is prepared from the following raw materials in parts by weight: 50-65 parts of PC resin, 15-45 parts of ABS resin, 1-2 parts of compatible resin and 10-12 parts of color master batch, wherein the compatible resin is one or a composition of more of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, maleic anhydride grafted polypropylene and maleic anhydride grafted styrene.
By adopting the technical scheme, as the compatible resin is adopted as the adaptation agent, the color master batch is protected by the compatible resin when the ABS and PC composite material is prepared, so that the color master batch can adapt to the production conditions under high temperature and high pressure, the possibility of decomposition of the color master batch is reduced, and the effect of reducing the possibility of whitening on the surface of the product is obtained.
In addition, the compatible resin can also be used as a compatilizer, so that the compatibility among the color master batches, the PC resin and the ABS resin is effectively improved, the color master batches can be more uniformly distributed in an ABS and PC composite material system, the possibility that the color master batches are not locally distributed in the ABS and PC composite material is reduced, and the effect of reducing the possibility that the surface of a product is whitened is also obtained.
Wherein, when the compatible resin is 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, maleic anhydride grafted polypropylene and maleic anhydride grafted styrene, the high temperature resistance and the compatibility of the color master batch can be improved. However, when 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, maleic anhydride grafted polypropylene and maleic anhydride grafted styrene are compounded, the effects of improving the high temperature resistance and compatibility of the color master batch are better, and the possibility of whitening on the surface of the product is further reduced.
Preferably, the compatible resin is prepared from the following raw materials in parts by weight: 0.2-0.3 part of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 0.3-0.7 part of maleic anhydride grafted polypropylene and 0.5-1.0 part of maleic anhydride grafted styrene.
By adopting the technical scheme, due to the adoption of the raw material proportion in the range, when the ABS and PC composite material is prepared, the compatilizer can effectively improve the high temperature resistance and compatibility of the color master batch, and further reduce the possibility of whitening on the surface of the product.
Preferably, the color master batch is prepared from the following raw materials in parts by weight: 7-8 parts of compatible resin, 1.8-2.4 parts of mixed pigment and 1.2-1.6 parts of dispersing agent.
By adopting the technical scheme, as the compatible resin is adopted as the carrier resin of the mixed pigment, when the ABS and PC composite material is prepared, the color master batch can be more easily compatible with the ABS resin and the PC resin through the compatible resin, and the possibility of whitening on the surface of the product is indirectly and effectively reduced.
In addition, the dispersing agent is arranged in the color master batch, so that when the ABS and PC composite material is prepared, the dispersing agent can promote the mixed pigment to be more simply dispersed in the compatible resin and the ABS and PC composite material system, and the possibility of whitening of the surface of the product is further reduced.
Preferably, the mixed pigment is one or a mixture of two of an organic pigment and an inorganic pigment.
By adopting the technical scheme, the organic pigment has the effects of bright color and strong tinting strength, but the organic pigment is deficient in light resistance, heat resistance and migration resistance. Although inorganic pigments are deficient in tinting strength and color brilliance, they have effects of light fastness, heat resistance, weather resistance, and the like.
After the organic pigment and the inorganic pigment are mixed, the mixed pigment has the effects of strong tinting strength and bright color of the organic pigment, and also has the effects of sun resistance, heat resistance, weather resistance and the like of the inorganic pigment, so that the possibility of whitening on the surface of a product is further effectively reduced.
Preferably, the mixed pigment is prepared from the following raw materials in parts by weight: 1.2-1.6 parts of inorganic pigment and 0.6-0.8 part of organic pigment.
By adopting the technical scheme, the raw material proportion in the range is adopted, so that the defects of poor coloring power and poor color vividness of the inorganic pigment can be effectively overcome by the organic pigment when the ABS and PC composite material is prepared, and the possibility of whitening on the surface of a product is effectively reduced.
Preferably, the dispersing agent is one or a mixture of several of low molecular weight polystyrene, polyethylene wax and magnesium stearate.
By adopting the technical scheme, although the low molecular weight polystyrene, the polyethylene wax and the magnesium stearate can effectively improve the dispersibility of the mixed pigment in the ABS and PC composite material system, compared with the polyethylene wax and the magnesium stearate, the low molecular weight polystyrene has better compatibility with the PC resin or the ABS resin, so that the organic pigment can be dispersed more uniformly in the ABS and PC composite material system, and the possibility of whitening on the surface of a product is effectively reduced.
In a second aspect, the present application provides a method for preparing a color masterbatch, which adopts the following technical scheme:
a preparation method of color master batch comprises the following steps:
s1, adding the compatible resin and the dispersing agent into an injection molding machine, and then mixing and granulating to obtain a mixed base resin;
and S2, adding the mixed pigment and the mixed base resin into an injection molding machine, and then mixing and granulating to obtain the color master batch.
By adopting the technical scheme, the dispersing agent and the compatible resin are mixed for injection molding and granulation, and then the mixed pigment and the mixed base resin are mixed for injection molding and granulation, so that the dispersing agent can be uniformly distributed in the compatible resin at first, and then the mixed pigment can be uniformly distributed in the compatible resin through the dispersing agent, and further the mixed pigment can be more easily dispersed in the compatible resin, the compatibility of the color master batch with the ABS resin and the PC resin is indirectly improved, and the possibility of whitening on the surface of the product is effectively reduced.
In a third aspect, the present application provides a preparation method of an ABS and PC composite material, which adopts the following technical scheme: a preparation method of an ABS and PC composite material comprises the following steps:
(1) adding compatible resin and color master batch into an injection molding machine, and then mixing and granulating to obtain a coloring base material;
(2) and adding the coloring base material, the PC resin and the ABS resin into an injection molding machine, and then mixing and injecting to obtain the ABS and PC composite material.
By adopting the technical scheme, because the compatible resin is firstly stirred and mixed with the color master batch for granulation, the compatible resin can be firstly uniformly mixed with the color master batch, and further, when the ABS and PC composite material is prepared, the compatible resin can protect the color master batch, so that the color master batch can adapt to the production conditions under high temperature and high pressure, and further, the possibility of decomposition of the color master batch is reduced, and therefore, the effect of reducing the possibility of whitening on the surface of the product is obtained.
In a fourth aspect, the application provides an application of an ABS and PC composite material, which adopts the following technical scheme:
an ABS and PC composite material is suitable for preparing automotive interior parts.
By adopting the technical scheme, as the ABS and PC composite materials are adopted as raw materials to prepare the automotive upholstery, the color of the automotive upholstery is relatively gorgeous and uniform, and the attractiveness of the automotive upholstery is further effectively improved.
In summary, the present application has the following beneficial effects:
1. because the compatible resin is used as the compatilizer, the compatibility among the color master batch, the PC resin and the ABS resin can be effectively improved by the compatible resin, and the possibility that the color master batch is not distributed on the part of the ABS and PC composite material is further reduced, so that the effect of reducing the possibility that the surface of the product is whitened is obtained.
2. According to the method, the compatible resin and the color master batch are stirred, mixed and granulated firstly, so that the compatible resin reduces the possibility of decomposition of the color master batch when the ABS and PC composite material is prepared, and therefore, the effect of reducing the possibility of whitening on the surface of the product is achieved.
3. According to the application, the ABS and PC composite materials are used as raw materials for preparing the automotive interior parts, so that the colors of the automotive interior parts are relatively bright and uniform, and the effect of improving the attractiveness of the automotive interior parts is achieved.
Drawings
FIG. 1 is a flow chart of a method for preparing an ABS, PC composite material provided by the present application.
Detailed Description
The present application will be described in further detail with reference to examples and comparative examples.
Raw materials and examples of preparation of raw materials
The raw material components in the application are shown in a table 1:
TABLE 1 sources of the raw material components
Preparation example 1
A color master batch adopts the following preparation method:
s1, adding 7.5kg of compatible resin [ 3- (2, 3-epoxypropoxy) propyltrimethoxysilane ] and 1.4kg of dispersing agent [ low molecular weight polystyrene ] into an injection molding machine, and then mixing and granulating to obtain mixed base resin;
s2, adding 2.2kg of mixed pigment (organic pigment phthalocyanine blue) and mixed base resin into an injection molding machine, mixing and granulating to obtain color master batch,
the injection molding machine comprises the following specific technological parameters: : the temperature of the first zone is 230-plus-240 ℃, the temperature of the second zone is 240-plus-250 ℃, the temperature of the third zone is 250-plus-260 ℃, the temperature of the fourth zone is 250-plus-260 ℃, the temperature of the fifth zone is 260-plus-270 ℃, the temperature of the sixth zone is 260-plus-280 ℃, the temperature of the seventh zone is 260-plus-270 ℃, the temperature of the eighth zone is 250-plus-260 ℃, the temperature of the ninth zone is 250-plus-260 ℃, the temperature of the tenth zone is 250-plus-260 ℃ and the rotating speed of the screw is 400 r/min.
Preparation examples 2 to 3
The differences from preparation example 1 were that the weight of each component of the raw materials for preparation 2 to 3 was different, as shown in Table 2.
TABLE 2 compositions and weights (kg) of respective raw materials in production examples 1 to 3
Preparation example 4
The difference from preparation example 1 is that 3- (2, 3-glycidoxy) propyltrimethoxysilane was replaced with the same amount of maleic anhydride-grafted polypropylene.
Preparation example 5
The difference from preparation example 1 was that 3- (2, 3-glycidoxy) propyltrimethoxysilane was replaced with the same amount of maleic anhydride-grafted styrene.
Preparation example 6
The difference from preparation example 1 is that 3- (2, 3-glycidoxy) propyltrimethoxysilane was not included.
Preparation example 7
A point of departure from preparation example 1 was that 3- (2, 3-glycidoxy) propyltrimethoxysilane was replaced with an equal amount of a composition of 3- (2, 3-glycidoxy) propyltrimethoxysilane and maleic anhydride-grafted styrene, and the ratio of 3- (2, 3-glycidoxy) propyltrimethoxysilane to maleic anhydride-grafted styrene was 1: 1.
Preparation example 8
The point of departure from preparation example 1 was that 3- (2, 3-glycidoxy) propyltrimethoxysilane was replaced with an equal amount of a composition of maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene, and the ratio of maleic anhydride-grafted polypropylene to maleic anhydride-grafted styrene was 1: 1.
Preparation example 9
The point of departure from preparation example 1 is that 3- (2, 3-glycidoxy) propyltrimethoxysilane is replaced with a composition of equal amounts of 3- (2, 3-glycidoxy) propyltrimethoxysilane, maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene, and the ratio of 3- (2, 3-glycidoxy) propyltrimethoxysilane, maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene is 1:1: 1.
Preparation example 10
The difference from preparation example 9 is that the ratio of 3- (2, 3-glycidoxy) propyltrimethoxysilane, maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene was 1:1: 2.
Preparation example 11
The difference from preparation example 9 is that the ratio of 3- (2, 3-glycidoxy) propyltrimethoxysilane, maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene was 1:1: 3.
Preparation example 12
The difference from preparation example 9 is that the ratio of 3- (2, 3-glycidoxy) propyltrimethoxysilane, maleic anhydride-grafted polypropylene and maleic anhydride-grafted styrene was 1:2: 3.
Preparation example 13
The difference from preparation example 1 is that the low molecular weight polystyrene was replaced with an equal amount of polyethylene wax.
Preparation example 14
The difference from preparation example 1 is that the low molecular weight polystyrene was replaced with an equal amount of magnesium stearate.
Preparation example 15
Except that low molecular weight polystyrene was not included, as in preparation example 1.
Preparation example 16
The difference from preparation example 1 was that the low molecular weight polystyrene was replaced with an equal amount of the combination of low molecular weight polystyrene and polyethylene wax, and the ratio of polyethylene wax to low molecular weight polystyrene was 1: 1.
Preparation example 17
The difference from preparation example 1 was that the low molecular weight polystyrene was replaced with a composition of the same amount of low molecular weight polystyrene and magnesium stearate, and the ratio of the low molecular weight polystyrene to the magnesium stearate was 1: 1.
Preparation example 18
The difference from preparation example 1 is that the organic pigment phthalocyanine blue is replaced with an equal amount of the inorganic pigment ultramarine blue.
Preparation example 9
The difference from preparation example 1 was that the organic pigment phthalocyanine blue was replaced with a composition of the same amounts of the organic pigment phthalocyanine blue and the inorganic pigment ultramarine blue, and the ratio of the organic pigment phthalocyanine blue to the inorganic pigment ultramarine blue was 1: 1.
Preparation example 20
The difference from preparation example 1 was that the organic pigment phthalocyanine blue was replaced with a composition of the same amounts of the organic pigment phthalocyanine blue and the inorganic pigment ultramarine blue, and the ratio of the organic pigment phthalocyanine blue to the inorganic pigment ultramarine blue was 1: 2.
Preparation example 21
The difference from preparation example 1 was that the organic pigment phthalocyanine blue was replaced with a composition of the same amounts of the organic pigment phthalocyanine blue and the inorganic pigment ultramarine blue, and the ratio of the organic pigment phthalocyanine blue to the inorganic pigment ultramarine blue was 1: 3.
Preparation example 22
The difference from preparation example 1 is that 3- (2, 3-glycidoxy) propyltrimethoxysilane, low molecular weight polystyrene and the organic pigment phthalocyanine blue are directly added into an injection molding machine for mixing and granulation.
Examples
Example 1
An ABS and PC composite material is prepared by the following steps:
(1) adding 11kg of the color master batch in preparation example 1 and 1.5kg of compatible resin into an injection molding machine, and then mixing and granulating to obtain a coloring base material;
(2) and adding the coloring base material, 68kg of PC resin and 30kg of ABS resin into an injection molding machine, and then performing injection molding to obtain the ABS and PC composite material.
In this embodiment and the following embodiments, the compatible resin is the same as the compatible resin in the added color master batch, and the specific process parameters of the injection molding machine are as follows: : the temperature of the first zone is 235 ℃, the temperature of the second zone is 250 ℃, the temperature of the third zone is 255 ℃, the temperature of the fourth zone is 260 ℃, the temperature of the fifth zone is 265 ℃, the temperature of the sixth zone is 270 ℃, the temperature of the seventh zone is 265 ℃, the temperature of the eighth zone is 260 ℃, the temperature of the ninth zone is 260 ℃, the temperature of the tenth zone is 260 ℃ and the rotation speed of the screw is 400 r/min.
Examples 2 to 3
The differences from example 1 are that the weight of each component of the raw materials of examples 2-3 is different, as shown in Table 3.
TABLE 3 compositions and weights (kg) of the respective raw materials in examples 1-3
| Composition of raw materials | Example 1 | Example 2 | Example 3 |
| Color masterbatch of preparation example 1 | 11 | 12 | 10 |
| Compatible resins | 1.5 | 1 | 2 |
| PC resin | 68 | 65 | 50 |
| ABS resin | 30 | 15 | 45 |
Example 4
The difference from example 1 is that the weight of the compatible resin was 2 kg.
Example 5
The difference from example 1 is that the weight of the compatible resin was 1 kg.
Examples 6 to 26
The difference from example 1 is that the color concentrates of examples 6-26 were the color concentrates of preparation examples 2-22.
Example 27
The difference from example 1 is that the compatible resin, the color master batch of preparation example 1, the PC resin, and the ABS resin were directly added together into an injection molding machine for injection molding.
Comparative example
Comparative example 1
The difference from the embodiment 1 is that the comparative example 1 is the ABS and PC composite material and the preparation method thereof described in the background art, and the color master batch in the background art adopts a general-purpose high-concentration blue color master batch of the junan zhongjia new material limited company.
Comparative example 2
The difference from example 1 is that no compatible resin is included (compatible resin still present in the masterbatch).
Performance test
Test method
Three samples were taken from each of examples 1 to 27 and comparative examples 1 to 2, and then injection-molded to obtain the same automotive upholstery, after which the following tests were performed and averaged.
Test one and color difference test.
The automotive upholstery is inspected and averaged using astm d1729-2016 standard practice for visual assessment of color and color difference of diffuse illumination opaque material and CIELab color system to obtain Lab values (where Lab represents one color, b represents the color between yellow and blue, positive values are yellow, negative values are blue, and the larger the absolute value is, the more saturated the color).
Test two, color uniformity test
Placing the automotive interior parts at the same position in sequence, and then, placing the automotive interior parts at the following standard light source: the irradiation was carried out under UVD65, and finally, the color uniformity of the automotive upholstery mentioned above was indicated by the letter "Sa" through the naked eye.
Sa0, the surface color of the automotive interior trim part is uniform, and no obvious spots exist;
sa 1: the surface color of the automotive interior part is uniform, and a small part of spots exist;
sa 2: the surface color of the automotive interior part is basically uniform, and a small part of stripes exist;
sa 3: the surface of the automotive interior trim part is mottled, and most mottles exist.
And (3) detection results: the results of the tests of examples 1 to 27 and comparative examples 1 to 2 are shown in Table 4.
TABLE 4 examination results of application examples 1 to 27 and application comparative examples 1 to 2
| b value | Color uniformity | b value | Color uniformity | ||
| Example 1 | -67 | Sa2 | Example 16 | -77 | Sa0 |
| Example 2 | -66 | Sa2 | Example 17 | -65 | Sa2 |
| Example 3 | -68 | Sa2 | Example 18 | -65 | Sa2 |
| Example 4 | -68 | Sa2 | Example 19 | -62 | Sa3 |
| Example 5 | -63 | Sa3 | Example 20 | -64 | Sa2 |
| Example 6 | -68 | Sa2 | Example 21 | -64 | Sa2 |
| Example 7 | -68 | Sa2 | Example 22 | -63 | Sa1 |
| Example 8 | -69 | Sa2 | Example 23 | -67 | Sa1 |
| Example 9 | -73 | Sa1 | Example 24 | -73 | Sa1 |
| Example 10 | -63 | Sa1 | Example 25 | -65 | Sa1 |
| Example 11 | -71 | Sa1 | Example 26 | -64 | Sa2 |
| Example 12 | -73 | Sa1 | Example 27 | -63 | Sa2 |
| Example 13 | -68 | Sa1 | Comparative example 1 | -60 | Sa3 |
| Example 14 | -74 | Sa0 | Comparative example 2 | -62 | Sa2 |
| Example 15 | -73 | Sa1 |
Referring to examples 1-3 and comparative example 1 in combination with Table 4, it can be seen that the absolute values of b values of examples 1-3 are all improved compared with comparative example 1, thus demonstrating that the raw materials in the ratio range of examples 1-3 can effectively improve the heat resistance of the color master batch and the compatibility with PC resin and ABS resin, and further effectively reduce the possibility of whitening of automotive interior parts.
Referring to example 1, examples 4 to 5 and comparative examples 1 to 2 in combination with table 4, it can be seen that the absolute value of b is increased in example 4, whereas the absolute value of b and color uniformity are decreased in example 5 and further decreased in comparative example 2, compared to example 1. However, the absolute values of the b values and the color uniformity of examples 4 to 5 and comparative example 2 were still relatively high compared to comparative example 1.
Therefore, the compatible resin and the dispersing agent both have the effects of improving the heat resistance of the color master batch and the compatibility between the color master batch and the PC resin and the ABS resin, and further effectively reduce the possibility of whitening of the automotive interior parts.
Referring to example 1, examples 6 to 7 and comparative example 1, and combining with table 4, it can be seen that the absolute values of b values of examples 1 and 6 to 7 are improved compared with comparative example 1, thereby demonstrating that the raw materials of the color masterbatch can effectively improve the heat resistance and compatibility with PC resin and ABS resin of the color masterbatch in the range of the proportions of examples 1 to 3, and further effectively reduce the possibility of whitening of the automotive interior parts.
Referring to example 1, examples 8 to 10, and comparative example 1 in combination with table 4, it can be seen that, compared to example 1, the absolute value of b value of example 8 is improved, the absolute value of b value and color uniformity of example 9 are further improved, while the absolute value of b value of example 10 is significantly reduced, but the absolute value of b value and color uniformity of examples 8 to 10 are higher than those of comparative example 1.
Therefore, the 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, the maleic anhydride grafted polypropylene and the maleic anhydride grafted styrene all have the effects of improving the heat resistance of the color master batch and the compatibility between the color master batch and the PC resin and the ABS resin, the effect of improving the maleic anhydride grafted styrene is the best, the effect of improving the maleic anhydride grafted polypropylene is the second best, and the effect of improving the 3- (2, 3-epoxypropoxy) propyl trimethoxy silane is relatively slightly poor.
Referring to example 9 and examples 11 to 13 in combination with table 4, it can be seen that the absolute value of b is decreased in example 11, the absolute value of b is not changed much in example 12, and the absolute value of b is decreased in example 13, but the color uniformity is increased in examples 11 to 13, compared to example 9.
Therefore, when 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, maleic anhydride grafted polypropylene and maleic anhydride grafted styrene are compounded for use, the compatibility between the color master batch and the PC resin as well as the compatibility between the color master batch and the ABS resin can be effectively improved, and the possibility of whitening of automotive interior parts is effectively reduced.
Referring to examples 13-16 in combination with Table 4, it can be seen that, compared to example 13, the absolute value of b and the color uniformity of example 14 are greatly improved, the absolute value of b of example 15 is greatly improved, and the color uniformity of example 15 is only slightly improved. The absolute value of b in example 16 was further improved based on example 14, and the color uniformity was the same as in example 14.
Therefore, when the total weight of the 3- (2, 3-glycidoxy) propyltrimethoxysilane and the maleic anhydride grafted polypropylene and the weight of the maleic anhydride grafted styrene are 1:1, the heat resistance of the color master batch and the compatibility between the color master batch and the PC resin and the ABS resin can be effectively improved. On the basis, when the specific gravity of the 3- (2, 3-epoxypropoxy) propyl trimethoxy silane and the maleic anhydride grafted polypropylene is 1:2, the improvement effect is better.
Referring to example 1, examples 17 to 19 and comparative example 1 in combination with Table 4, it can be seen that the absolute values of b were decreased in examples 17 to 18 relative to example 1. Whereas the absolute value of b value and color uniformity of example 19 were further decreased compared to examples 17 to 18, even though the color uniformity of example 19 was the same as comparative example 1.
However, the absolute values of b values for examples 17-19 were still relatively high relative to comparative example 1, while the color uniformity for examples 17-18 was also slightly higher than comparative example 1. Therefore, the low molecular weight polystyrene, the polyethylene wax and the magnesium stearate have the effects of improving the heat resistance of the color master batch and the compatibility between the color master batch and the PC resin and the ABS resin, and the improvement effect of the low molecular weight polystyrene is optimal.
Referring to example 1, examples 20 to 21, and table 4, the absolute values of b values of examples 20 to 21 were all decreased compared to example 1, thereby indicating that the use of a combination of low molecular weight polystyrene, polyethylene wax and magnesium stearate did not improve the heat resistance of the color masterbatch and the compatibility with PC resin and ABS resin.
Referring to example 1, examples 22 to 25 and table 4, it can be seen that, compared to example 1, although the absolute value of b is decreased in example 22, the color uniformity of example 22 is improved; the absolute value of b is basically unchanged in example 23, but the color uniformity is improved in example 22; the absolute value of the b value and the color uniformity of the embodiment 24 are greatly improved; the absolute value of b is decreased in example 25, but the color uniformity is improved in example 22.
This shows that the inorganic pigment ultramarine blue has an effect of improving heat resistance of the color master batch and compatibility with PC resin and ABS resin, but color saturation is insufficient. When the organic pigment phthalocyanine blue and the inorganic pigment ultramarine blue are compounded for use, the heat resistance of the color master batch and the compatibility between the color master batch and PC resin and ABS resin can be improved, and meanwhile, a certain color vividness is achieved. Wherein, the ratio of the organic pigment phthalocyanine blue to the inorganic pigment ultramarine blue is 1:2, and the promotion effect is optimal.
Referring to example 1 and examples 26 to 27 in combination with table 4, it can be seen that the absolute value of b is significantly reduced in examples 26 to 27 compared to example 1, and thus it is demonstrated that the heat resistance of the color masterbatch particles and the compatibility with the PC resin and the ABS resin are improved to some extent by mixing the compatible resin, the dispersant and the mixed pigment in steps when preparing the color masterbatch particles.
When the PC and ABS composite material is prepared, the PC resin, the ABS resin, the compatible resin and the mixed pigment are mixed step by step, and the heat resistance of the color master batch and the compatibility between the color master batch and the PC resin and the compatibility between the color master batch and the ABS resin are improved to a certain extent.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (6)
1. The ABS/PC composite material is characterized by being prepared from the following raw materials in parts by weight: 50-65 parts of PC resin, 15-45 parts of ABS resin, 1-2 parts of compatible resin and 10-12 parts of color master batch, wherein the compatible resin is prepared from the following raw materials in parts by weight: 0.2-0.3 part of 3- (2, 3-epoxypropoxy) propyl trimethoxy silane, 0.3-0.7 part of maleic anhydride grafted polypropylene and 0.5-1.0 part of maleic anhydride grafted styrene; the color master batch is prepared from the following raw materials in parts by weight: 7-8 parts of compatible resin, 1.8-2.4 parts of mixed pigment and 1.2-1.6 parts of dispersing agent, wherein the dispersing agent is one or a mixture of a plurality of low molecular weight polystyrene, polyethylene wax and magnesium stearate.
2. The ABS, PC composite of claim 1 wherein: the mixed pigment is one or a mixture of two of an organic pigment and an inorganic pigment.
3. The ABS, PC composite of claim 2 wherein: the mixed pigment is prepared from the following raw materials in parts by weight: 1.2-1.6 parts of inorganic pigment and 0.6-0.8 part of organic pigment.
4. A process for the preparation of a masterbatch according to any one of claims 1 to 3, comprising the steps of:
s1, adding the compatible resin and the dispersing agent into an injection molding machine, and then mixing and granulating to obtain a mixed base resin;
and S2, adding the mixed pigment and the mixed base resin into an injection molding machine, and then mixing and granulating to obtain the color master batch.
5. A method for preparing the ABS and PC composite material according to any one of claims 1 to 3, comprising the steps of:
(1) adding compatible resin and color master batch into an injection molding machine, and then mixing and granulating to obtain a coloring base material;
(2) and adding the coloring base material, the PC resin and the ABS resin into an injection molding machine, and then mixing and injecting to obtain the ABS and PC composite material.
6. Use of the ABS, PC composite according to any one of claims 1 to 3 for the preparation of automotive interior trim parts.
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| US4439582A (en) * | 1981-01-09 | 1984-03-27 | The Dow Chemical Company | Blends of aromatic polycarbonate with random copolymers of a monovinylidene aromatic and an unsaturated carboxylic acid |
| JP2009509016A (en) * | 2005-09-22 | 2009-03-05 | チバ ホールディング インコーポレーテッド | Scratch resistant polymer and coating composition |
| US20150353732A1 (en) * | 2014-06-09 | 2015-12-10 | Sabic Global Technologies B.V. | Impact improved filled polycarbonate or polyester compositions |
| CN104559108A (en) * | 2014-12-22 | 2015-04-29 | 上海普利特复合材料股份有限公司 | Spray-free PC/ABS composite material with high gloss and high impact resistance and preparation method of spray-free PC/ABS composite material |
| CN106519626A (en) * | 2016-11-08 | 2017-03-22 | 四川长虹电器股份有限公司 | Composite material and preparation method thereof |
| CN109486160B (en) * | 2018-12-29 | 2021-04-02 | 上海普利特复合材料股份有限公司 | Fragrant PC/ABS functional master batch with flocking simulating effect and preparation method of composite material thereof |
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