Embodiment
In order to make the technical problem to be solved in the present invention, technical scheme and beneficial effect clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The embodiment of the present invention provides a kind of high gloss toughness reinforcing AS matrix material, comprises the component of following weight percent:
Particularly, above-mentioned AS resin is fine-cinnamic multipolymer of propylene, is by vinyl cyanide and styrene copolymerized macromolecular compound, general containing vinylbenzene 15%-50%, is transparent and the yellow solid to amber pin look of band, now mainly as the blend composition of ABS.Preferred shock strength is 30 ± 5J/M, and density is 1.04-1.07g/cm
3aS resin, such as LG chemistry 80HF, platform NF2200.
Above-mentioned K resin is transparent butadiene-styrene impact resin, also known as K-Resin(K-resin), for monomer with vinylbenzene, divinyl, take lithium alkylide as initiator, adopt a kind of segmented copolymer of anionic solution polymerization technology synthesis, it is transparent, bright, also has high toughness and shock resistance simultaneously.In a preferred embodiment, described K resin is the styrene-butadiene copolymer that transmittance is greater than 88%, and shock strength is (or being about) 40 ± 5J/M, and density is 1.01-1.03g/cm
3, such as strange beautiful PB-5903 or PB-5910.
Above-mentioned K resin and AS resin are combined through hybrid junctions, make matrix material have good color effects, reach well transparent, gloss intensity, can be used as the selection of high-end electronic product material.
Each component of matrix material can combine and play synergy by above-mentioned compatilizer.Conventional compatilizer is ABS grafted maleic anhydride compatilizer.In a preferred embodiment, described compatilizer by weight ratio be the AS resin of 98-99:0.2-0.3:1.6-1.7:0.2-0.3, white oil, maleic anhydride and tasteless DCP form, can be described as AS grafted maleic anhydride, it can by extruding obtained by each component mixed melting, wherein, extrusion temperature is 140-170 DEG C.Specifically can pass through twin-screw extrusion fusion-grafting, screw speed is set to 270-300 rev/min.In above-mentioned compatilizer system, AS resin is optional with above-mentioned AS resin base material, and technical grade selected by white oil, and maleic anhydride and tasteless DCP all can select purity to be greater than the rank of 98%, can reduce mixing of other impurity like this, ensures the purity of color.Its key index is DCP content, can control the color of compatilizer after adjustment, for follow-up use is laid the groundwork.Preferably, the weight ratio of AS resin, white oil, maleic anhydride and tasteless DCP is 98:0.2:1.6:0.2-0.3.
Traditional method prepares AS class mixture, and all use ABS grafted maleic anhydride, matrix is ABS, but has a strong impact on the background color transparency of mixture during the mixing of ABS and AS arbitrary proportion.The present invention is by the above-mentioned AS grafted maleic anhydride of self-control, and by adjusting the consumption of initiator DCP, compatilizer color is made to reach ideal effect, and the background color of mixture can be kept better, adopt AS grafted maleic anhydride that main body A S and glass interface cohesion can be made more tight, composite strength reaches best effect simultaneously.
Above-mentioned lubricant is conducive to melt extruding of matrix material, can improve the physicals of extruded product, makes product surface smooth good-looking.The preferred fusing point of described lubricant is the amide waxe class modifier of 141.5 DEG C-144.5 DEG C, and concrete example is as Guangzhou Ou Ying chemical industry TAF, EBS.
Above-mentioned oxidation inhibitor can delay or suppress the carrying out of polymkeric substance oxidising process, thus stops the aging of polymkeric substance and extend its work-ing life.Preferably, described oxidation inhibitor is Hinered phenols antioxidant, fusing point 115-150 DEG C, as vapour bar IRGANOX1098, IRGANOX1010.
The preferred above-mentioned self-control maleic anhydride graft AS of the present invention plays synergistic effect as compatilizer, main body due to whole invention is AS material, toughened system is K resin, maleic anhydride graft AS can reach completely compatible with two, thus it is ultimate attainment to make the effect of AS compatilizer perform to, the shock strength of matrix material is significantly improved, and higher than two material of main parts, obtains the toughness reinforcing AS matrix material of high gloss of excellent performance.
Correspondingly, the embodiment of the present invention additionally provides the preparation method of the toughness reinforcing AS matrix material of a kind of high gloss, comprises the following steps:
S01, take each component respectively according to above-mentioned high gloss toughness reinforcing AS composite-material formula;
S02, take each component carry out mixing treatment by described, obtain mixture;
S03, described mixture to be melt extruded, granulation, obtain the toughness reinforcing AS matrix material of described high gloss.
Particularly, each component preferred content in the formula of the toughness reinforcing AS of the high gloss in above-mentioned steps S01 matrix material and formula and kind as described above, in order to save length, do not repeat them here.
In above-mentioned steps S02, the time that each component carries out mixing treatment can adjust flexibly according to actual production conditions, as long as each component premix fully, the equipment as mixing can be mixing machine etc.In a preferred embodiment, mixing treatment be by each component at a high speed (as rotating speed is greater than 300r/min) combination treatment 10 ~ 15 minutes, each component is mixed.
In above-mentioned steps S03, mixture melt extrude the technique that can adopt this area routine.Better act synergistically in melt extruding to make each component, give the more excellent gloss transparency of above-mentioned high gloss toughness reinforcing AS matrix material and mechanical property, in a preferred embodiment, it is adopt twin screw extruder to melt extrude that mixture melt extrudes, extrusion temperature is 170-230 DEG C, screw speed 270-300 rev/min.
Each component mixing only also need melt extrude and can obtain product by formula by above-mentioned high gloss toughness reinforcing AS composite material and preparation method thereof at a proper temperature, melt extruding the temperature and time that only need control in process to melt extrude, therefore, its preparation method technique is simple, condition is easily controlled, with low cost, feature low for equipment requirements, is suitable for suitability for industrialized production.
Now for toughness reinforcing AS matrix material of concrete high gloss and preparation method thereof, the present invention is further elaborated.The toughness reinforcing AS matrix material of high gloss that the present invention proposes, needs to use following starting material: AS resin, K resin, compatilizer, lubricant, oxidation inhibitor.
Wherein, the 80HF of AS Choice of Resin LG or the NF2200 of platform; Strange beautiful PB-5903 or PB-5910 of K Choice of Resin; Compatilizer selects self-control AS grafted maleic anhydride; The IRGANOX1098(or 1010 of vapour bar chemical industry selected by oxidation inhibitor); Guangzhou Ou Ying chemical industry TAF(or EBS selected by lubricant).
Embodiment all uses raw material given by the present invention and preparation method; The unit of each component concentration of following examples is all weight percentage (wt%).
Embodiment 1
Take AS resin 92.6, K resin 5, compatilizer 2, lubricant 0.2, oxidation inhibitor 0.2, pre-mixing starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 170 DEG C, a district, 190 DEG C, 2nd district, 200 DEG C, 3rd district, 170 DEG C, 4th district, head 230 DEG C.
Embodiment 2
Take AS resin 86.46, K resin 10, compatilizer 3, lubricant 0.3, oxidation inhibitor 0.24, premix starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 180 DEG C, a district, 170 DEG C, 2nd district, 190 DEG C, 3rd district, 180 DEG C, 4th district, head 220 DEG C.
Embodiment 3
Take AS resin 80.34, K resin 15, compatilizer 4, lubricant 0.4, oxidation inhibitor 0.26, premix starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 170 DEG C, a district, 200 DEG C, 2nd district, 200 DEG C, 3rd district, 190 DEG C, 4th district, head 210 DEG C.
Embodiment 4
Take AS resin 74.2, K resin 20, compatilizer 5, lubricant 0.5, oxidation inhibitor 0.3, premix starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 175 DEG C, a district, 195 DEG C, 2nd district, 205 DEG C, 3rd district, 175 DEG C, 4th district, head 225 DEG C.
Embodiment 5
Take AS resin 68.08, K resin 25, compatilizer 6, lubricant 0.6, oxidation inhibitor 0.32, premix starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 185 DEG C, a district, 185 DEG C, 2nd district, 200 DEG C, 3rd district, 170 DEG C, 4th district, head 205 DEG C.
Comparative example 1
Take ABS resin 80, K resin 20, premix starting material, then raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 185 DEG C, a district, 220 DEG C, 2nd district, 210 DEG C, 3rd district, 160 DEG C, 4th district, head 200 DEG C.
Comparative example 2
Take ABS resin 100, do not add other, raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 185 DEG C, a district, 185 DEG C, 2nd district, 200 DEG C, 3rd district, 170 DEG C, 4th district, head 205 DEG C.
Comparative example 3
Take K resin 100, do not add other, raw material is placed in twin screw extruder through melt extruding, granulation, its expressing technique is: 170 DEG C, a district, 200 DEG C, 2nd district, 200 DEG C, 3rd district, 190 DEG C, 4th district, head 210 DEG C.
Performance test:
Tensile strength is tested by ASTMD-638 standard.Specimen types is I type, batten size (mm): (176 ± 2) (length) × (12.6 ± 0.2) (end portion width) × (3.05 ± 0.2) (thickness), and draw speed is 50mm/min;
Flexural strength and modulus in flexure are tested by ASTM D-790 standard.Specimen types is specimen size (mm): (128 ± 2) × (12.67 ± 0.2) × (3.11 ± 0.2), and rate of bending is 20mm/min;
Izod notched impact strength is tested by ASTM D-256 standard.Specimen types is I type, specimen size (mm): (63 ± 2) × (12.45 ± 0.2) × (3.1 ± 0.2); Breach type is category-A, and breach residual thickness is 1.9mm;
The performance test results of embodiment 1-5 is in table 1:
Table 1
Comparative example 1,2, the performance test of 3 is in table 2:
Table 2
Compatilizer, AS resin can be found out by embodiment in table 1, the ratio of K resin decides mechanical property and the outward appearance of mixture jointly, along with the raising of K resin and compatilizer ratio, the shock strength of mixture significantly improves, consider the tensile strength of matrix material, flexural strength, and shock strength needs the performance of balance, from above data, we think at AS resin 74.2%, K resin 20%, the proportioning of compatilizer 5% is optimum proportion, now the shock strength of mixture is higher, and stretch, flexural strength reduces moderate, overall performance is excellent.
Three kinds of typical result of whole comparative example as can be seen from Table 2, comparative example 1 selects the K resin alloy of the AS and 20% of 80%, does not use compatilizer, can find out all more weaker than the performance of any embodiment from data; Comparative example 2 uses pure AS resin; Comparative example 3 uses pure K resin.Known above, the resin-made using thinking of the present invention that two performances can be made all lower is for the mixture of excellent combination property, and when K resin and AS grafted maleic anhydride are selected suitable, whole diagram of system reveals good consistency.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.