Anti-rust high-performance abs composite material and preparation method thereof
By combining modified polyurethane elastomer with ABS resin, fillers, and additives, the problem of abnormal noise in ABS resin products was solved, and the material achieved a high-performance noise reduction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG YONGXINHUA NEW MATERIAL CO LTD
- Filing Date
- 2026-04-02
- Publication Date
- 2026-06-26
AI Technical Summary
Existing ABS resin products are prone to abnormal noise during use, mainly due to the material's high coefficient of friction and insufficient damping, which leads to a stick-slip phenomenon. Existing methods for preventing abnormal noise have the problem of insufficient component compatibility.
Modified polyurethane elastomer is used as the main component. A prepolymer is generated by reacting polybutylene adipate with isophorone diisocyanate, which is then blended with styrene and 4-aminostyrene to form a polymer. The polymer is then reacted with HDI trimer and dodecanol to generate an intermediate product. Finally, it is blended with ABS resin, fillers and additives to form a high-performance ABS composite material with noise reduction.
It improves the compatibility and damping performance of materials, effectively reduces noise, and enhances the overall performance of the product.
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Figure SMS_1
Abstract
Description
Technical Field
[0001] This invention relates to the field of ABS material technology, and in particular to a high-performance ABS composite material for preventing abnormal noise and its preparation method. Background Technology
[0002] ABS resin (acrylonitrile-butadiene-styrene copolymer) is the most commonly used general-purpose engineering plastic. Its core characteristics are a balance of rigidity and toughness, easy processing, and high cost performance.
[0003] ABS resin has a wide range of applications, including: automotive, such as dashboards, center consoles, door panels, air conditioning vents, rearview mirror housings, door handles, and luggage rack bases; home appliances and 3C electronics, such as TV housings, air conditioning panels, washing machine parts, rice cooker housings, computer cases, keyboards, and mice; daily necessities and toys, such as suitcase housings, helmets, clothes hangers, storage boxes, Lego-like building blocks, and various toy housings; and building materials and kitchen and bathroom products, such as bathroom accessories, faucet decorative covers, shower room accessories, pipes and fittings, cable trays, and switch panels.
[0004] When using products made of ABS resin, abnormal noises may occur. The main reason is that the material itself has a high coefficient of friction and insufficient damping. When it rubs against hard plastic, it is prone to sticking and slipping, which generates friction noise.
[0005] Currently, common methods for reducing noise in products made of ABS resin include: adding internal lubricants / silicone additives, such as organosilicone, siloxane, ultra-high molecular weight silicone, etc.; and adding damping materials, such as TPU, TPE, rubber particles, high-damping polymers, etc.
[0006] Although there are many types of ABS noise reduction products on the market, some problems still exist, such as insufficient compatibility of the components, making it difficult for the components to disperse evenly, resulting in noise reduction and noise reduction effects that do not satisfy consumers.
[0007] In conclusion, it is necessary to develop a new technical solution to address the shortcomings of existing technologies. Summary of the Invention
[0008] This invention provides a high-performance ABS composite material for noise reduction and its preparation method. The high-performance ABS composite material for noise reduction comprises the following components: ABS resin, modified polyurethane elastomer, filler, and additives. The modified polyurethane elastomer of this invention introduces various active groups, which can improve the compatibility and damping performance of each component, thereby improving product performance and showing good application prospects.
[0009] One object of the present invention is to provide a high-performance ABS composite material for preventing abnormal noise, the high-performance ABS composite material for preventing abnormal noise comprising the following components in parts by weight: 70-90 parts of ABS resin 5-10 parts of modified polyurethane elastomer 10-15 parts of filler Additives: 0.5-3 parts; The modified polyurethane elastomer is obtained by blending polybutylene adipate and isophorone diisocyanate to obtain a prepolymer, blending styrene and 4-aminostyrene to obtain a polymer, then blending the prepolymer and polymer to obtain intermediate product 1, blending HDI trimer and dodecanol to obtain intermediate product 2, and finally blending intermediate product 1 and intermediate product 2 together.
[0010] Furthermore, the filler is selected from one or more of mica powder, talc powder, calcium carbonate, and glass microspheres.
[0011] Furthermore, the additive is selected from one or more of antioxidants, lubricants, and toughening agents.
[0012] Another object of the present invention is to provide a method for preparing the aforementioned high-performance ABS composite material for noise reduction, the method comprising the following steps: S1. Under an inert atmosphere, polybutylene adipate, isophorone diisocyanate, and catalyst are blended, heated, and stirred to react and obtain a prepolymer. S2. Styrene, 4-aminostyrene, and an initiator are blended under an inert atmosphere, and the mixture is heated and stirred to react, yielding a polymer. S3. Under an inert atmosphere, the prepolymer and polymer are blended, heated and stirred to react, and intermediate product 1 is obtained. S4. Under an inert atmosphere, HDI trimer and dodecanol were blended, heated and stirred to react, and intermediate product 2 was obtained. S5. Under an inert atmosphere, intermediate product 1 and intermediate product 2 are blended, heated and stirred to react, and a modified polyurethane elastomer is obtained. S6. The modified polyurethane elastomer is blended with the remaining components, added to a screw extruder, extruded, granulated, and dried to obtain the noise-resistant high-performance ABS composite material.
[0013] Further, in step S1, the mass ratio of polybutylene adipate to isophorone diisocyanate is (1-2):(1-4).
[0014] Further, in step S2, the mass ratio of styrene to 4-aminostyrene is (2-5):(1-3).
[0015] Further, in step S3, the mass ratio of the prepolymer to the polymer is (1-5):(1-10).
[0016] Further, in step S4, the mass ratio of the HDI trimer to dodecanol is (1-4):(1-3).
[0017] Further, in step S5, the mass ratio of intermediate product 1 to intermediate product 2 is (1-5):(1-5).
[0018] The present invention has the following beneficial effects: This invention provides a high-performance ABS composite material for noise reduction and its preparation method. The high-performance ABS composite material for noise reduction includes the following components: ABS resin, modified polyurethane elastomer, filler, and additives. The modified polyurethane elastomer is obtained by reacting the hydroxyl groups of polybutylene adipate and the isocyanate groups of isophorone diisocyanate to obtain a prepolymer, followed by polymerization of styrene and 4-aminostyrene to obtain a polymer. Then, the remaining isocyanate groups of the prepolymer and the amino groups of the polymer react to obtain intermediate product 1. The isocyanate groups of HDI trimer and the hydroxyl groups of dodecanol react to obtain intermediate product 2. Finally, the remaining amino groups of intermediate product 1 and the remaining isocyanate groups of intermediate product 2 are reacted to obtain the final product.
[0019] The modified polyurethane elastomer of this invention introduces a benzene ring and a trimer structure containing long alkyl chains. The benzene ring can improve the compatibility of the components, thereby improving the various performance characteristics of the product. When subjected to external forces, the trimer structure containing long alkyl chains dissipates energy through a relaxation mode and generates higher internal friction loss between molecular chain segments. At the same time, it enhances the chain segment mobility, improves the damping performance of the product, and thus improves the noise reduction and anti-noise performance. In addition, the long alkyl chains can also improve compatibility, further improving the product performance. Detailed Implementation
[0020] To more clearly illustrate the technical solution of the present invention, the following embodiments are provided. Unless otherwise stated, the raw materials, reactions, and post-processing methods appearing in the embodiments are all commercially available raw materials and technical methods well known to those skilled in the art.
[0021] The terms "preferred," "more preferably," and "more suitable" used in this invention refer to embodiments of the invention that provide certain beneficial effects under certain circumstances. However, other embodiments may also be preferred under the same or other circumstances. Furthermore, the description of one or more preferred embodiments does not imply that other embodiments are unavailable, nor is it intended to exclude other embodiments from the scope of this invention.
[0022] It should be understood that, except in any operational instance or otherwise indicated, the amounts or all figures representing ingredients used, for example, in the specification and claims, should be understood to be modified by the term "about" in all cases. Therefore, unless otherwise stated, the numerical parameters set forth in the following specification and appended claims are approximate values varying according to the desired performance to be obtained according to the invention.
[0023] The embodiments of the present invention use the following raw materials: ABS resin: purchased from Jiangsu Leien Environmental Protection Technology Co., Ltd.
[0024] Talc powder: purchased from Foshan Jinlinda New Materials Co., Ltd.
[0025] Antioxidant: a mixture of n-octadecyl carbonate and N,N'-diethyl-p-phenylenediamine in a 1:1 mass ratio.
[0026] Lubricant: a mixture of butyl stearate and alkyl styrene in a 1:1 mass ratio.
[0027] Polybutylene adipate: molecular weight 2000.
[0028] HDI trimer CAS number: 3779-63-3.
[0029] Example 1 A high-performance ABS composite material for noise reduction, comprising the following components in parts by weight: 90 parts of ABS resin 10 parts of modified polyurethane elastomer 15 parts talcum powder 1 part antioxidant 1 part lubricant; The preparation method of the noise-resistant high-performance ABS composite material includes the following steps: S1. Under a nitrogen atmosphere, polybutylene adipate, isophorone diisocyanate and catalyst dibutyltin dilaurate were blended in a mass ratio of 1:2.2:0.01, heated to 80°C and stirred for 4 hours to obtain a prepolymer. S2. Under a nitrogen atmosphere, using toluene as a solvent, styrene, 4-aminostyrene, and the initiator azobisisobutyronitrile were blended in a mass ratio of 3.5:1:0.045, heated to 60°C and stirred for 6 hours. The solvent was removed, the mixture was washed, and dried to obtain the polymer. S3. Under a nitrogen atmosphere, using N,N-dimethylformamide as a solvent, the prepolymer and polymer are blended at a mass ratio of 1:10, heated to 65°C and stirred for 2 hours, the solvent is removed and dried to obtain intermediate product 1. S4. Under a nitrogen atmosphere, using anhydrous ethyl acetate as solvent, HDI trimer, dodecanol, and catalyst dibutyltin dilaurate were blended in a mass ratio of 2.7:1:0.008, heated to 70°C and stirred for 2 hours. The solvent was removed and the mixture was dried to obtain intermediate product 2. S5. Under a nitrogen atmosphere, intermediate product 1, intermediate product 2, and N,N-dimethylacetamide are mixed in a mass ratio of 1:3:0.4, stirred for 5 min, N,N-dimethylacetamide and bubbles are removed, and the mixture is heated to 60°C and stirred for 12 h to obtain a modified polyurethane elastomer. S6. According to the above-mentioned mass proportions, the modified polyurethane elastomer is blended with the remaining components, added to a screw extruder, and extruded, granulated, and dried at 240°C to obtain the noise-resistant high-performance ABS composite material.
[0030] Example 2 A high-performance ABS composite material for noise reduction, comprising the following components in parts by weight: 85 parts of ABS resin 9 parts of modified polyurethane elastomer 14 parts talcum powder 1 part antioxidant 1 part lubricant; The preparation method of the noise-resistant high-performance ABS composite material includes the following steps: S1. Under a nitrogen atmosphere, polybutylene adipate, isophorone diisocyanate and catalyst dibutyltin dilaurate were blended in a mass ratio of 1:2.2:0.01, heated to 80°C and stirred for 4 hours to obtain a prepolymer. S2. Under a nitrogen atmosphere, using toluene as a solvent, styrene, 4-aminostyrene, and the initiator azobisisobutyronitrile were blended in a mass ratio of 3.5:1:0.045, heated to 60°C and stirred for 6 hours. The solvent was removed, the mixture was washed, and dried to obtain the polymer. S3. Under a nitrogen atmosphere, using N,N-dimethylformamide as a solvent, the prepolymer and polymer are blended at a mass ratio of 1:10, heated to 65°C and stirred for 2 hours, the solvent is removed and dried to obtain intermediate product 1. S4. Under a nitrogen atmosphere, using anhydrous ethyl acetate as solvent, HDI trimer, dodecanol, and catalyst dibutyltin dilaurate were blended in a mass ratio of 2.7:1:0.008, heated to 70°C and stirred for 2 hours. The solvent was removed and the mixture was dried to obtain intermediate product 2. S5. Under a nitrogen atmosphere, intermediate product 1, intermediate product 2, and N,N-dimethylacetamide are mixed in a mass ratio of 1:3:0.4, stirred for 5 min, N,N-dimethylacetamide and bubbles are removed, and the mixture is heated to 60°C and stirred for 12 h to obtain a modified polyurethane elastomer. S6. According to the above-mentioned mass proportions, the modified polyurethane elastomer is blended with the remaining components, added to a screw extruder, and extruded, granulated, and dried at 240°C to obtain the noise-resistant high-performance ABS composite material.
[0031] Example 3 A high-performance ABS composite material for noise reduction, comprising the following components in parts by weight: 80 parts of ABS resin 8 parts of modified polyurethane elastomer 13 parts talcum powder 1 part antioxidant 1 part lubricant; The preparation method of the noise-resistant high-performance ABS composite material includes the following steps: S1. Under a nitrogen atmosphere, polybutylene adipate, isophorone diisocyanate and catalyst dibutyltin dilaurate were blended in a mass ratio of 1:2.2:0.01, heated to 80°C and stirred for 4 hours to obtain a prepolymer. S2. Under a nitrogen atmosphere, using toluene as a solvent, styrene, 4-aminostyrene, and the initiator azobisisobutyronitrile were blended in a mass ratio of 3.5:1:0.045, heated to 60°C and stirred for 6 hours. The solvent was removed, the mixture was washed, and dried to obtain the polymer. S3. Under a nitrogen atmosphere, using N,N-dimethylformamide as a solvent, the prepolymer and polymer are blended at a mass ratio of 1:10, heated to 65°C and stirred for 2 hours, the solvent is removed and dried to obtain intermediate product 1. S4. Under a nitrogen atmosphere, using anhydrous ethyl acetate as solvent, HDI trimer, dodecanol, and catalyst dibutyltin dilaurate were blended in a mass ratio of 2.7:1:0.008, heated to 70°C and stirred for 2 hours. The solvent was removed and the mixture was dried to obtain intermediate product 2. S5. Under a nitrogen atmosphere, intermediate product 1, intermediate product 2, and N,N-dimethylacetamide are mixed in a mass ratio of 1:3:0.4, stirred for 5 min, N,N-dimethylacetamide and bubbles are removed, and the mixture is heated to 60°C and stirred for 12 h to obtain a modified polyurethane elastomer. S6. According to the above-mentioned mass proportions, the modified polyurethane elastomer is blended with the remaining components, added to a screw extruder, and extruded, granulated, and dried at 245°C to obtain the noise-resistant high-performance ABS composite material.
[0032] Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that styrene in S2 is removed and 4-aminostyrene is replaced with allylamine. The remaining components and preparation methods are the same as in Example 1.
[0033] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that the dodecanol in S4 is replaced with ethanol, while the remaining components and preparation methods are the same as in Example 1.
[0034] Test case The product samples prepared in Examples 1-3 and Comparative Examples 1-2 were subjected to performance tests.
[0035] Test method: Noise reduction performance: Tested according to standard VDA 230-206, test conditions: 40N, speed 4mm / s; according to this standard, RPN is divided into 1-10 levels; among them, RPN=1-3 is judged as noise reduction; RPN=4-6 is judged as medium noise; RPN=7-10 is judged as high noise.
[0036] Notched impact strength: Tested according to ISO 180-2000, at 23°C, with a type A notch.
[0037] The test results are shown in Table 1.
[0038] Table 1 Performance Test Results As can be seen from Table 1, the results of Examples 1-3 are better than those of Comparative Examples 1-2. This is because the modified polyurethane elastomer of Comparative Example 1 did not introduce benzene rings, which reduced the compatibility of the components and led to a decrease in product performance. Similarly, the trimer structure of the modified polyurethane elastomer of Comparative Example 2 did not introduce long alkyl chains, which also reduced the compatibility of the components and led to a decrease in product performance.
[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider 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. A high-performance ABS composite material for preventing abnormal noise, characterized in that, The noise-reducing high-performance ABS composite material comprises the following components in parts by weight: 70-90 parts of ABS resin 5-10 parts of modified polyurethane elastomer 10-15 parts of filler Additives: 0.5-3 parts; The modified polyurethane elastomer is obtained by blending polybutylene adipate and isophorone diisocyanate to obtain a prepolymer; blending styrene and 4-aminostyrene to obtain a polymer; then blending the prepolymer and polymer to obtain intermediate product 1; blending HDI trimer and dodecanol to obtain intermediate product 2; and finally blending intermediate product 1 and intermediate product 2.
2. The high-performance ABS composite material for noise reduction according to claim 1, characterized in that, The filler is selected from one or more of mica powder, talc powder, calcium carbonate, and glass microspheres.
3. The high-performance ABS composite material for noise reduction according to claim 1, characterized in that, The additives are selected from one or more of antioxidants, lubricants, and toughening agents.
4. The method for preparing the high-performance ABS composite material for noise reduction as described in any one of claims 1-3, characterized in that, The preparation method of the noise-resistant high-performance ABS composite material includes the following steps: S1. Under an inert atmosphere, polybutylene adipate, isophorone diisocyanate, and catalyst are blended, heated, and stirred to react and obtain a prepolymer. S2. Styrene, 4-aminostyrene, and an initiator are blended under an inert atmosphere, and the mixture is heated and stirred to react, yielding a polymer. S3. Under an inert atmosphere, the prepolymer and polymer are blended, heated and stirred to react, and intermediate product 1 is obtained. S4. Under an inert atmosphere, HDI trimer and dodecanol were blended, heated and stirred to react, and intermediate product 2 was obtained. S5. Under an inert atmosphere, intermediate product 1 and intermediate product 2 are blended, heated and stirred to react, and a modified polyurethane elastomer is obtained. S6. The modified polyurethane elastomer is blended with the remaining components, added to a screw extruder, extruded, granulated, and dried to obtain the noise-resistant high-performance ABS composite material.
5. The method for preparing the high-performance ABS composite material for noise reduction according to claim 4, characterized in that, In step S1, the mass ratio of polybutylene adipate to isophorone diisocyanate is (1-2):(1-4).
6. The method for preparing the high-performance ABS composite material for noise reduction according to claim 4, characterized in that, In step S2, the mass ratio of styrene to 4-aminostyrene is (2-5):(1-3).
7. The method for preparing the high-performance ABS composite material for noise reduction according to claim 4, characterized in that, In step S3, the mass ratio of the prepolymer to the polymer is (1-5):(1-10).
8. The method for preparing the high-performance ABS composite material for noise reduction according to claim 4, characterized in that, In step S4, the mass ratio of HDI trimer to dodecanol is (1-4):(1-3).
9. The method for preparing the high-performance ABS composite material for noise reduction according to claim 4, characterized in that, In step S5, the mass ratio of intermediate product 1 to intermediate product 2 is (1-5):(1-5).