ABS (Acrylonitrile Butadiene Styrene) material and preparation method thereof

Abstract

The invention discloses an ABS (Acrylonitrile Butadiene Styrene) material and a preparation method thereof, and belongs to the technical field of polymer composite materials. The ABS material comprises the following raw materials in parts by mass: 63-78 parts of ABS resin; 12 parts of a heat-resistant agent; 10 to 25 parts of deodorizing master batch; 0.3 part of an antioxidant; 0.5 part of toner; according to the ABS material, the physical adsorption type deodorant and the industrial essence are compounded, and the physical adsorption type deodorant has a pore structure and can well adsorb essence molecules and improve the dispersion problem of the essence molecules. Compared with a traditional physical adsorption type deodorant which is poor in effect and the problem that essence is not easy to add and mix, the deodorant is better promoted to be uniformly dispersed in matrix resin due to the use of the deodorant master batch, and the mechanical property of the material is guaranteed while the odor is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of polymer composite materials, and in particular relates to an ABS material and a preparation method thereof. Background Art

[0002] As people's quality of life improves, various home furnishings, home appliances, cars, etc. have entered thousands of households. As plastic products, which are used in a large proportion, most of them will emit some unpleasant odors, affecting people's experience of use and even endangering their health. Adding flavors to plastic products can cover up the odor in the plastic, and make the plastic products emit a fragrant smell, which makes people feel pleasant and increases the attractiveness of the product.

[0003] ABS materials are widely used in the fields of automobiles, home appliances, electronic appliances, building materials, packaging materials, etc. due to their excellent physical properties. However, the VOC and odor emitted by ABS itself also limit its use. The odor and VOC substances of ABS mainly come from the residual emulsifiers and catalysts in the synthesis process of ABS resin, as well as the small molecular VOC volatiles with strong odors produced by thermal degradation and oxidative degradation of the material during extrusion and injection molding. Especially in a closed environment such as a car, it will cause harm to the health of the people in the car. Summary of the invention

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide an ABS material and a preparation method thereof, which solves the problems in the prior art.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] An ABS material, comprising the following raw materials in parts by weight:

[0007]

[0008]

[0009] Furthermore, the ABS resin is ABS synthesized by bulk method, and its melt flow rate is 5-10g / 10min.

[0010] Furthermore, the heat-resistant agent is styrene-N-phenylmaleimide-maleic anhydride copolymer.

[0011] Furthermore, the deodorizing masterbatch is prepared by compounding a physical adsorption deodorizing agent with a liquid essence, and then blending and extruding the mixture with an ABS resin to form a granulated product.

[0012] Furthermore, the physical adsorption deodorant is an inorganic silicate.

[0013] Furthermore, the antioxidant is compounded by hindered phenols and phosphites in a mass ratio of 1:2.

[0014] Furthermore, the toner is a compound color inorganic toner pigment.

[0015] The above-mentioned method for preparing an ABS material comprises the following steps:

[0016] The ABS resin, the heat-resistant agent, the antioxidant, the deodorizing masterbatch and the color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder for melting, extrusion and granulation to obtain the ABS material.

[0017] Furthermore, the barrel of the twin-screw extruder is temperature controlled in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0018] The above-mentioned ABS material is used as a raw material in the preparation of household appliance housings and automobile interiors.

[0019] Beneficial effects of the present invention:

[0020] 1. The present invention adopts a physical adsorption deodorant compounded with industrial flavors, wherein the physical adsorption deodorant has a pore structure, which can well adsorb flavor molecules and improve their dispersion problem.

[0021] 2. Compared with the poor effect of traditional physical adsorption deodorants, and the problem that flavors are difficult to add and mix, the use of deodorizing masterbatch in the present invention also better promotes the uniform dispersion of the deodorant in the matrix resin, while improving the odor and ensuring the mechanical properties of the material.

[0022] 3. The porous AS carrier and chemical adsorption deodorant in the prior art react with small odor molecules and then solidify. Moreover, when the AS carrier is added in a large amount, the toughness of the material will decrease. However, the porous physical adsorption deodorant of the present invention has a sustained release effect on the odor of the essence, making the fragrance lasting, and the masterbatch matrix resin is the same as the material, which ensures the mechanical properties of the material. DETAILED DESCRIPTION

[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solution of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] An ABS material, comprising the following raw materials in parts by weight:

[0025]

[0026] The Vicat softening temperature of the ABS material is above 105° C., and can be used in high-temperature environments, especially in car interiors.

[0027] The ABS resin is ABS synthesized by bulk method, and its melt flow rate (MFR) is 5-10g / 10min (220°C, 10kg)

[0028] The heat-resistant agent is styrene-N-phenylmaleimide-maleic anhydride copolymer.

[0029] The deodorizing masterbatch is made by compounding the physical adsorption deodorizing agent with liquid fragrance, and then blending it with ABS resin and extruding it into granules.

[0030] The antioxidant is prepared by compounding hindered phenols and phosphites in a mass ratio of 1:(1-2); the hindered phenol antioxidant is antioxidant 1076, and the phosphite antioxidant is antioxidant 168.

[0031] Toner is a compound color inorganic toner pigment.

[0032] The preparation process of ABS material is specifically described by the following examples, wherein the parts of raw materials used in the examples and comparative examples are all parts by mass; and the specific information of the raw materials used in the examples and comparative examples is as follows:

[0033] ABS resin: Continuous bulk process production, Shanghai Gaoqiao Petrochemical Company;

[0034] Heat resistant agent: N-phenylmaleimide type, Nippon Electric Chemical, brand MS-NIP;

[0035] Antioxidants: Antioxidant 1076 and Antioxidant 168, BASF, Germany;

[0036] Physical adsorption deodorant: inorganic silicate, Ningbo Jiahe New Material Technology Co., Ltd., brand JH-200A;

[0037] Industrial flavor: liquid lemon flavor, Foshan Yite Environmental Protection Technology Co., Ltd.;

[0038] Color powder: carbon black powder for ABS.

[0039] Example 1

[0040] The preparation method of ABS material comprises the following steps:

[0041] S1. Preparation of deodorant

[0042] Mix the physical adsorption deodorant with the industrial flavor in a mass ratio of 4:1; first add the liquid lemon flavor to the physical adsorption deodorant powder according to the mass ratio, use a magnetic stirring table to fully mix the two, control the temperature at 60°C during high-speed stirring, and grind the powder into fine powder for later use after it is completely dry.

[0043] S2, preparation of deodorizing masterbatch

[0044] The deodorant powder prepared in S1 was fully mixed with ABS resin at a mass ratio of 1:100, and then extrusion granulation was performed to obtain a deodorant masterbatch.

[0045] S3, preparation of ABS material

[0046] 78 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, 10 parts of deodorizing masterbatch and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded and granulated to obtain an ABS material;

[0047] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0048] Example 2

[0049] The preparation method of ABS material comprises the following steps:

[0050] S1. Preparation of deodorant

[0051] Mix the physical adsorption deodorant with the industrial flavor in a mass ratio of 4:1; first add the liquid lemon flavor to the physical adsorption deodorant powder according to the mass ratio, use a magnetic stirring table to fully mix the two, control the temperature at 60°C during high-speed stirring, and grind the powder into fine powder for later use after it is completely dry.

[0052] S2, preparation of deodorizing masterbatch

[0053] The deodorant powder prepared in S1 was fully mixed with ABS resin at a mass ratio of 1:100, and then extrusion granulation was performed to obtain a deodorant masterbatch.

[0054] S3, preparation of ABS material

[0055] 73 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, 15 parts of deodorizing masterbatch, and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded, and granulated to obtain an ABS material;

[0056] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0057] Example 3

[0058] The preparation method of ABS material comprises the following steps:

[0059] S1. Preparation of deodorant

[0060] Mix the physical adsorption deodorant with the industrial flavor in a mass ratio of 4:1; first add the liquid lemon flavor to the physical adsorption deodorant powder according to the mass ratio, use a magnetic stirring table to fully mix the two, control the temperature at 60°C during high-speed stirring, and grind the powder into fine powder for later use after it is completely dry.

[0061] S2, preparation of deodorizing masterbatch

[0062] The deodorant powder prepared in S1 was fully mixed with ABS resin at a mass ratio of 1:100, and then extrusion granulation was performed to obtain a deodorant masterbatch.

[0063] S3, preparation of ABS material

[0064] 68 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, 20 parts of deodorizing masterbatch and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded and granulated to obtain an ABS material;

[0065] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0066] Example 4

[0067] The preparation method of ABS material comprises the following steps:

[0068] S1. Preparation of deodorant

[0069] Mix the physical adsorption deodorant with the industrial flavor in a mass ratio of 4:1; first add the liquid lemon flavor to the physical adsorption deodorant powder according to the mass ratio, use a magnetic stirring table to fully mix the two, control the temperature at 60°C during high-speed stirring, and grind the powder into fine powder for later use after it is completely dry.

[0070] S2, preparation of deodorizing masterbatch

[0071] The deodorant powder prepared in S1 was fully mixed with ABS resin at a mass ratio of 1:100, and then extrusion granulation was performed to obtain a deodorant masterbatch.

[0072] S3, preparation of ABS material

[0073] 63 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, 25 parts of deodorizing masterbatch and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded and granulated to obtain an ABS material;

[0074] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0075] Comparative Example 1

[0076] The preparation method of ABS material comprises the following steps:

[0077] 88 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded, and granulated to obtain a heat-resistant ABS material;

[0078] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0079] Comparative Example 2

[0080] The preparation method of ABS material comprises the following steps:

[0081] 88 parts of ABS resin, 12 parts of heat-resistant agent, 0.1 parts of antioxidant 1076, 0.2 parts of antioxidant 168, 0.5 parts of liquid lemon essence, and 0.5 parts of color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder to be melted, extruded, and granulated to obtain an ABS material;

[0082] Among them, the barrel of the twin-screw extruder controls the temperature in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

[0083] The raw material ratios of the embodiments and comparative examples are shown in Table 1 below;

[0084] Table 1 Formulations of Examples and Comparative Examples

[0085] Material Example 1 Example 2 Example 3 Example 4 Comparative Example 1 Comparative Example 2 ABS resin 78 73 68 63 88 88 Heat resistant agent 12 12 12 12 12 12 Antioxidant 1076 0.1 0.1 0.1 0.1 0.1 0.1 Antioxidant 168 0.2 0.2 0.2 0.2 0.2 0.2 Liquid lemon essence / / / / / 0.5 Deodorizing Masterbatch 10 15 20 25 / / Toner 0.5 0.5 0.5 0.5 0.5 0.5

[0086] Experimental testing

[0087] The ABS materials prepared in Examples 1-4 and Comparative Examples 1-2 were first placed in a blast oven at 85° C. and dried for 4 hours to fully dry the moisture, and then injection molded into strips on an injection molding machine. The strips were adjusted under standard conditions for 24 hours to facilitate performance testing. The test standards and test conditions are as follows:

[0088] Density test: according to ISO 1183-1 standard, the test size is 40*10*4mm;

[0089] Tensile strength test: according to ISO 527-2 standard, the sample size is 135*10*4mm, and the tensile speed is 50mm / min;

[0090] Bending strength and bending modulus test: According to ISO 178 standard, the sample size is 80*10*4mm, the bending speed is 2mm / min, and the span is 64mm;

[0091] Simple supported beam notched impact strength test: according to ISO 179-1 standard, the sample size is 80*10*4mm, A-type notch, 4J pendulum;

[0092] Vicat softening temperature test: according to ISO 306 standard, the sample size is 10*10*4mm, the load is 50N, and the heating rate is 50℃ / h.

[0093] The test results are shown in Table 2:

[0094] Table 2 Performance data of embodiments and comparative examples

[0095]

[0096]

[0097] From the comparison of the test results of Examples 1-4 and Comparative Examples 1-2, after adding the deodorizing masterbatch, the tensile and bending properties of the ABS material are slightly improved, the impact strength decreases significantly, and the Vicat softening temperature of the material is less affected. Overall, the deodorant has little effect on the comprehensive properties of the ABS material.

[0098] The test of volatile gases and odors in the car includes human sensory tests and strict instrument tests. The present invention adopts 1-6 levels of evaluation according to the German Volkswagen PV3900 standard. The higher the level, the stronger the odor. The specific odor test experimental conditions are as follows:

[0099] Weigh 20g of plastic particles into a smell bottle, screw on the cap, and then place it in an oven at 80℃;

[0100] After 2 hours, take out the odor bottle from the oven, cool it naturally to about 60°C, and have the odor level determined by a professional odor inspector.

[0101] The odor test standards are shown in Table 3:

[0102] Table 3 Volkswagen car interior material odor evaluation standard:

[0103]

[0104] The materials of Examples 1-4 and Comparative Examples 1-2 were dried for a certain period of time, and then the odor levels were determined according to the above odor test implementation method and evaluation criteria. The determination results are shown in Table 4:

[0105] Table 4 Odor grade data of comparative examples and embodiments

[0106]

[0107] From the comparison of the odor test results of Examples 1-4 and Comparative Examples 1-2, the initial odor of the ABS material has been significantly improved after adding the deodorizing masterbatch. However, the odor level of Comparative Example 2, which adds 0.1% liquid lemon essence, still reaches level 4.5. This is because the concentration of the essence is too high, resulting in an overly strong fragrance after baking, which in turn causes obvious odor. After baking at 85°C for 12 hours, the odor level of Examples 2 and 3 can reach level 3.5, and the material has a light fragrance. Due to the inappropriate amount of deodorizing masterbatch added, the odor level of Examples 1 and 4 reaches level 3.7, but the two have different flavor types.

[0108] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0109] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. An ABS material, characterized in that: Including the following raw materials by weight:

2. An ABS material according to claim 1, characterized in that: The ABS resin is ABS synthesized by bulk method, and its melt flow rate is 5-10g / 10min.

3. The ABS material according to claim 1, characterized in that: The heat-resistant agent is styrene-N-phenylmaleimide-maleic anhydride copolymer.

4. The ABS material according to claim 1, characterized in that: The deodorizing masterbatch is prepared by compounding a physical adsorption deodorizing agent with a liquid essence, and then blending and extruding the mixture with an ABS resin to form a granulated product.

5. An ABS material according to claim 4, characterized in that: The physical adsorption deodorant is an inorganic silicate.

6. The ABS material according to claim 1, characterized in that: The antioxidant is prepared by compounding hindered phenols and phosphites in a mass ratio of 1:

2.

7. The ABS material according to claim 1, characterized in that: The toner is a compound color inorganic toner pigment.

8. The method for preparing an ABS material according to any one of claims 1 to 7, characterized in that: The following steps are involved: The ABS resin, the heat-resistant agent, the antioxidant, the deodorizing masterbatch and the color powder are fully mixed to obtain a uniform mixture; the mixture is added into a twin-screw extruder for melting, extrusion and granulation to obtain the ABS material.

9. The method for preparing an ABS material according to claim 8, characterized in that: The barrel of the twin-screw extruder is temperature controlled in sections, and the temperature of each zone is set to 190°C, 260°C, 260°C, 260°C, 250°C, 250°C, 240°C, 240°C, 260°C, and the main engine speed is 450 rpm.

10. Use of the ABS material according to any one of claims 1 to 7 as a raw material in the preparation of household appliance housings and automobile interiors.

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