Wear-resistant and low-temperature-impact-resistant ABS composite material and preparation method thereof

Abstract

The invention discloses a wear-resistant low-temperature impact-resistant ABS composite material and a preparation method thereof. The wear-resistant low-temperature impact-resistant ABS composite material comprises a material (1) ABS resin; (2) reinforcing materials; (3) an elastomer toughening agent; (4) an antioxidant and an anti-ultraviolet agent; the preparation method comprises the following steps: (1) raw material preparation, (2) pretreatment, (3) mixing, (4) melt extrusion or injection molding, (5) cooling and post-treatment, and (6) quality inspection. Materials with good wear resistance and strong low temperature resistance are selected during material selection, for example, the proportion of an ABS terpolymer is adjusted during ABS resin selection, and meanwhile, modified diabase fibers with good adsorbability and dispersibility in a reinforcing material are matched, so that the wear resistance of the mixed material is improved, and the low temperature resistance is improved by adding a new formula. The ABS composite material has the functions of oxidation resistance, ultraviolet resistance and the like while the low temperature resistance is improved, so that the functions of the ABS composite material are further improved, and the requirements of various fields can be met.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of ABS composite materials, in particular to an ABS composite material with wear resistance and low-temperature impact resistance and a preparation method thereof. Background Art

[0002] ABS composite material is a thermoplastic polymer material copolymerized by three monomers, namely acrylonitrile (A), butadiene (B), and styrene (S). By changing the ratio of the three monomers and the polymerization process, ABS composite materials with different properties and uses can be obtained.

[0003] In the existing process for preparing ABS composite materials, due to the strong comprehensive performance of ABS composite materials, they have good mechanical strength, wear resistance, low-temperature impact resistance, easy processability, chemical corrosion resistance, and electrical properties, etc. However, in actual use, although they have low-temperature impact resistance, in some specific fields such as the outer body panels of automobiles in the automotive industry and the refrigerators in the field of electronic appliances, their low-temperature impact resistance function is still far from sufficient and there is still room for improvement.

[0004] Therefore, we propose an ABS composite material with wear resistance and low-temperature impact resistance and a preparation method thereof to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide an ABS composite material with wear resistance and low-temperature impact resistance and a preparation method thereof, so as to solve the problem in the above background art that in the existing process for preparing ABS composite materials, due to the strong comprehensive performance of ABS composite materials, they have good mechanical strength, wear resistance, low-temperature impact resistance, easy processability, chemical corrosion resistance, and electrical properties, etc. However, in actual use, although they have low-temperature impact resistance, in some specific fields such as the outer body panels of automobiles in the automotive industry and the refrigerators in the field of electronic appliances, their low-temperature impact resistance function is still far from sufficient and there is still room for improvement.

[0006] To achieve the above purpose, the present invention provides the following technical solutions:

[0007] An ABS composite material with wear resistance and low-temperature impact resistance, the material includes (1) ABS resin; (2) reinforcing material; (3) elastomeric toughening agent; (4) antioxidant and ultraviolet absorber; (5) low-temperature modifier.

[0008] In a further embodiment, the (1) ABS resin is selected such that the content of acrylonitrile (A) is generally between 15% and 35%, the content of butadiene (B) is between 5% and 30%, and the content of styrene (S) is between 40% and 60%.

[0009] (2) Selection of reinforcing materials: fiber reinforcing materials such as glass fiber, carbon fiber, aramid fiber, particulate reinforcing materials such as oxide particles, non-oxide particles and whisker reinforcing materials;

[0010] (3) Selection of elastomer toughening agents: rubber-based modifiers, elastomer modifiers;

[0011] (4) Selection of antioxidants and UV stabilizers: for antioxidants, select antioxidant 168, antioxidant 1076, antioxidant 246 and phenolic antioxidants; for UV stabilizers, select benzotriazoles, benzophenones, hindered amines or triazines;

[0012] (5) Selection of low-temperature modifiers: cold-resistant plasticizers, rubber-based modifiers or nano-fillers.

[0013] A preparation method of an ABS composite material with wear resistance and low-temperature impact resistance, including the steps of (1) raw material preparation, (2) pretreatment, (3) mixing, (4) melt extrusion or injection molding, (5) cooling and post-treatment, and (5) quality inspection.

[0014] In a further embodiment, in the step (1) of raw material preparation, weigh the ABS resin, modified diabase fiber, toughening agent and antioxidant raw materials according to a certain proportion, and determine the types and proportions of the raw materials:

[0015] The ABS resin is used as the main component, and its content is between 60-80 parts by weight or 65-89 parts by weight;

[0016] The reinforcing material is selected as the modified diabase fiber, and its content is between 10-30 parts by weight. The functionalized glass microspheres, used as fillers or reinforcing agents, have a content between 5-20 parts by weight;

[0017] The elastomer toughening agent is selected as a rubber-based modifier or an elastomer modifier, and its content is between 1-5 parts by weight;

[0018] The content of the antioxidant and UV stabilizer is between 0.1-0.5 parts by weight.

[0019] In a further embodiment, in the step (2) of pretreatment, the modified diabase fiber is surface-treated by soaking in a La3+ ion solution to increase the oxygen-containing active groups on the fiber surface.

[0020] In a further embodiment, in the step (3) of mixing, the pretreated modified diabase fiber is mixed with raw materials such as ABS resin, toughening agent and antioxidant in a high-speed mixer to fully disperse and uniformly mix each component.

[0021] In a further embodiment, in step (4), the mixed material is fed into a melt extruder by melt extrusion or injection molding, melted and extruded into a shape under high temperature and high pressure. During the extrusion process, the structure and properties of the composite material are controlled by adjusting parameters such as the temperature, pressure, and speed of the extruder.

[0022] In a further embodiment, in step (5), cooling and post-treatment: the extruded composite material is cooled and solidified by a cooling device, and then cut into the required size and shape.

[0023] In a further embodiment, in step (6), quality inspection: the cut composite material is post-treated, such as sanding and polishing, to improve its surface quality and service performance.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0025] 1. In the present invention, when selecting materials, materials with good wear resistance and low-temperature resistance are selected, such as ABS resin. When selecting, the ratio of the ABS terpolymer is adjusted. At the same time, modified diabase fibers with good adsorption and dispersion properties in the reinforcing material are used to improve the hardness, strength, toughness, etc. of the ABS resin to enhance the wear resistance of the composite material, so that the wear resistance of the mixed material is improved.

[0026] 2. In the present invention, a new formulation is added for low-temperature resistance, specifically a low-temperature modifier, such as an ester-based cold-resistant plasticizer. They interact with the ABS molecular chain to improve the low-temperature performance of the material. When combined with other additives, it not only improves the low-temperature resistance but also has functions such as antioxidant and anti-ultraviolet, further improving the composite function of the ABS and meeting the requirements of various fields. Specific embodiments

[0027] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation to the present invention. In the description of the present invention, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0028] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0030] A wear-resistant and low-temperature impact-resistant ABS composite material and a preparation method thereof according to the present invention, the material includes:

[0031] (1) ABS resin; (2) reinforcing material; (3) elastomer toughening agent; (4) antioxidant and ultraviolet inhibitor; (5) low-temperature modifier.

[0032] Material selection:

[0033] (1) Selection of ABS resin: The content of acrylonitrile (A) is usually between 15% and 35%, the content of butadiene (B) is between 5% and 30%, and the content of styrene (S) is between 40% and 60%;

[0034] (2) Selection of reinforcing material: Fiber reinforcing materials such as glass fiber, carbon fiber, aramid fiber, particulate reinforcing materials such as oxide particles, non-oxide particles and whisker reinforcing materials;

[0035] (3) Selection of elastomer toughening agent: Rubber-based modifiers, elastomer modifiers;

[0036] (4) Selection of antioxidant and ultraviolet inhibitor: Antioxidants are selected from antioxidant 168, antioxidant 1076, antioxidant 246 and phenolic antioxidants, and ultraviolet inhibitors are selected from benzotriazoles, benzophenones, hindered amines or triazines;

[0037] (5) Selection of low-temperature modifier: Cold-resistant plasticizers, rubber-based modifiers or nano-fillers.

[0038] The preparation method includes: step (1) raw material preparation, step (2) pretreatment, step (3) mixing, step (4) melt extrusion or injection molding, step (5) cooling and post-treatment, step (5) quality inspection.

[0039] Step (1) Raw material preparation: Weigh the raw materials of ABS resin, modified diabase fiber, toughening agent and antioxidant according to a certain proportion, and determine the types and proportions of the raw materials:

[0040] ABS resin is used as the main component, and its content is between 60 - 80 parts by weight or 65 - 89 parts by weight;

[0041] The reinforcing material is selected as modified diabase fiber, and its content is between 10 - 30 parts by weight. Functionalized glass microspheres, as fillers or reinforcing agents, have a content between 5 - 20 parts by weight, which can improve its compatibility and dispersibility with ABS resin;

[0042] The elastomeric toughening agent is selected from rubber - based modifiers or elastomeric modifiers, with a content between 1 - 5 parts by weight;

[0043] The antioxidant and anti - ultraviolet agent have a content between 0.1 - 0.5 parts by weight.

[0044] Step (2) Pretreatment: The modified diabase fiber is surface - treated, and soaked in La3+ ion solution to increase the oxygen - containing active groups on the fiber surface.

[0045] Step (3) Mixing: Mix the pretreated modified diabase fiber with raw materials such as ABS resin, toughening agent and antioxidant in a high - speed mixer to make each component fully dispersed and uniformly mixed.

[0046] Step (4) Melt - extrusion or injection molding: Feed the mixed material into a melt - extrusion machine, melt and extrude it into a shape under high temperature and high pressure. During the extrusion process, control the structure and properties of the composite material by adjusting parameters such as the temperature, pressure and speed of the extrusion machine.

[0047] Step (5) Cooling and post - treatment: Cool and solidify the extruded composite material through a cooling device, and then cut it into the required size and shape.

[0048] Step (6) Quality inspection: Post - treat the cut composite material, such as sanding and polishing, to improve its surface quality and service performance.

[0049] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above - mentioned exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non - restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention.

[0050] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An ABS composite material with wear resistance and low-temperature impact resistance, characterized in that: The materials include (1) ABS resin; (2) reinforcing material; (3) elastomer toughening agent; (4) antioxidant and ultraviolet inhibitor; (5) low-temperature modifier.

2. An ABS composite material with wear resistance and low-temperature impact resistance according to claim 1, characterized in that: The selected (1) ABS resin: the content of acrylonitrile (A) is usually between 15% and 35%, the content of butadiene (B) is between 5% and 30%, and the content of styrene (S) is between 40% and 60%; (2) The selected reinforcing material: fiber reinforcing materials such as glass fiber, carbon fiber, aramid fiber, particulate reinforcing materials such as oxide particles, non-oxide particles and whisker reinforcing materials; (3) The selected elastomer toughening agent: rubber-based modifiers, elastomer modifiers; (4) The selected antioxidant and ultraviolet inhibitor: for antioxidants, antioxidant 168, antioxidant 1076, antioxidant 246 and phenolic antioxidants are selected; for ultraviolet inhibitors, benzotriazole-based, benzophenone-based, hindered amine-based or triazine-based are selected; (5) The selected low-temperature modifier: cold-resistant plasticizers, rubber-based modifiers or nano-fillers.

3. A method for preparing an ABS composite material with wear resistance and low-temperature impact resistance as described in claim 1, characterized in that: The steps include (1) raw material preparation, (2) pretreatment, (3) mixing, (4) melt extrusion or injection molding, (5) cooling and post-treatment, (6) quality inspection.

4. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (1) of raw material preparation, the ABS resin, modified diabase fiber, toughening agent and antioxidant raw materials are weighed according to a certain ratio to determine the types and ratios of the raw materials: The ABS resin is used as the main component, and its content is between 60 and 80 parts by weight or between 65 and 89 parts by weight; The reinforcing material is selected as the modified diabase fiber, and its content is between 10 and 30 parts by weight. The functionalized glass microspheres, used as fillers or reinforcing agents, have a content between 5 and 20 parts by weight; The elastomer toughening agent is selected as a rubber-based modifier or an elastomer modifier, and its content is between 1 and 5 parts by weight; The content of the antioxidant and ultraviolet inhibitor is between 0.1 and 0.5 parts by weight.

5. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (2) of pretreatment, the modified diabase fiber is surface-treated by soaking in a La3+ ion solution to increase the oxygen-containing active groups on the fiber surface.

6. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (3) of mixing, the pretreated modified diabase fiber is mixed with raw materials such as ABS resin, toughening agent and antioxidant in a high-speed mixer to fully disperse and uniformly mix each component.

7. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (4) of melt extrusion or injection molding, the mixed material is fed into a melt extruder and melted and extruded into a shape under high temperature and high pressure. During the extrusion process, the structure and properties of the composite material are controlled by adjusting parameters such as the temperature, pressure and speed of the extruder.

8. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (5) of cooling and post-treatment, the extruded composite material is cooled and solidified through a cooling device, and then cut into the required size and shape.

9. The preparation method of an ABS composite material with wear resistance and low-temperature impact resistance according to claim 3, characterized in that: In the step (6) of quality inspection, the cut composite material is post-treated, such as sanding and polishing, to improve its surface quality and service performance.