Preparation method of highlight weather-resistant ABS-PS-K adhesive ternary compound injection molding perfume bottle cap

Abstract

The invention discloses a preparation method of a highlight weather-resistant ABS-PS-K adhesive ternary compound injection molding perfume bottle cap, and relates to the field of application of plastic materials. According to the invention, ABS, styrene-acrylonitrile copolymer and K glue are reasonably proportioned, and an injection molding process is adopted, so that the perfume bottle cap with high gloss, excellent weather resistance and ultraviolet resistance is prepared. According to the method, through a melt blending technology, the glossiness, the weather resistance and the aging resistance of the bottle cap are remarkably improved on the basis that the good mechanical strength of the composite material is guaranteed. The prepared bottle cap not only has longer service life, but also can keep higher glossiness under the ultraviolet aging condition, and is suitable for the field of high-end cosmetic packaging.

Description

Technical Field

[0001] This invention relates to the application of plastic materials, and in particular to a method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap. Background Technology

[0002] As a crucial component of cosmetic packaging, the quality of perfume bottle caps directly impacts the product's appearance and significantly determines its market competitiveness. In recent years, with consumers' increasing demands for packaging appearance and quality, the design and materials of perfume bottle caps have become increasingly diversified. They are required not only to possess an exquisite appearance but also excellent weather resistance, UV resistance, and long-lasting gloss retention. Therefore, optimizing material selection and processing techniques to produce perfume bottle caps that possess both high gloss and excellent weather resistance has become a vital issue for the packaging industry.

[0003] Currently, the most commonly used materials for perfume bottle caps are ABS (acrylonitrile-butadiene-styrene copolymer) resin and PS (polystyrene) resin. ABS is widely used in packaging materials due to its good moldability, mechanical strength, and impact resistance. However, ABS alone has certain shortcomings in terms of weather resistance and gloss, and is prone to fading and yellowing. PS resin, due to its high gloss and good transparency, is often used to improve the appearance of plastic products, but its UV resistance and weather resistance are relatively weak, making it susceptible to the effects of sunlight and oxygen in the air, leading to a decline in its performance.

[0004] To enhance the overall performance of perfume bottle caps, numerous studies and patents have begun to utilize composite materials made from various resins. K-resin, a high-performance material with excellent weather resistance and UV resistance, has been widely used in plastic products in recent years. Adding an appropriate amount of K-resin to ABS and PS base materials can significantly improve the weather resistance and UV resistance of the product, as well as increase its surface gloss, thus meeting the dual requirements of aesthetics and durability for high-end cosmetic packaging.

[0005] However, while existing technologies utilize composite materials made from different resins to improve the performance of perfume bottle caps, certain challenges remain. In particular, how to maintain high gloss while further enhancing the material's weather resistance and UV resistance has become a pressing technical problem for the packaging industry. Therefore, this invention proposes a novel ABS-PS-K ternary composite material. Through scientific and reasonable formulation and process optimization, it not only improves the gloss of perfume bottle caps but also significantly enhances their weather resistance, UV resistance, and lifespan, providing a superior solution for high-end cosmetic packaging. Summary of the Invention

[0006] To overcome the shortcomings of existing technologies, this invention provides a method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection-molded perfume bottle cap. By designing a ternary composite system of ABS, PS, and K resin, an injection molding process is used to prepare a perfume bottle cap with high gloss, excellent weather resistance, and environmental compliance. Through scientific formulation and process optimization, this invention achieves a dual improvement in both aesthetics and durability of the perfume bottle cap.

[0007] The specific plan is as follows: A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: A) Mix 50-70 parts ABS, 20-40 parts PS, 2-5 parts epoxy succinic acid polymer, 5-15 parts K glue, 0.2-0.5 parts aminoferrocene (CAS: 1273-82-1), 0.01-0.08 parts 2-methylimidazole, 0.1-1.0 parts antioxidant and 0.2-2 parts ultraviolet absorber in a high-speed mixer to obtain a uniform composite adhesive. B) The perfume bottle cap is obtained by injecting the composite material into the mold using the injection molding process. C) Polish the surface of the molded perfume bottle cap to improve its gloss and weather resistance.

[0008] Preferably, the antioxidant is selected from one of 1010 and 168 or any combination thereof in proportion.

[0009] Preferably, the ultraviolet absorber is selected from UV-531, Tinuvin 328, or UV-P.

[0010] Preferably, the mixing temperature of the high-speed mixer is 80-100℃.

[0011] Preferably, the mixing time of the high-speed mixer is 10-20 minutes.

[0012] Preferably, the injection molding process includes: heating the composite material to 230℃-250℃, controlling the injection pressure at 80-100MPa, and the injection time at 10-15 seconds.

[0013] Preferably, the molded perfume bottle cap undergoes a cooling treatment, with the cooling temperature controlled between 20°C and 30°C, and the cooling time being 1-2 minutes.

[0014] Preferably, the polishing temperature is controlled at 30°C to 40°C, and the polishing time is 1-3 minutes.

[0015] Reaction mechanism of aminoferrocene with epoxy succinic acid polymer: The amino group in the aminoferrocene molecule has strong nucleophilicity, which can undergo nucleophilic ring-opening reaction with the epoxy group on the epoxy succinic acid polymer molecular chain to form a stable CN covalent bond and construct a cross-linked interpenetrating network structure. At the same time, 2-methylimidazole, as a catalyst, can reduce the activation energy of the ring-opening reaction, promote the uniform reaction, and enable the components in the system (ABS, PS, K glue, etc.) to achieve tight molecular-level binding and avoid component separation.

[0016] Technical effects: Strengthening the internal bonding of materials significantly improves the mechanical properties of perfume bottle caps, greatly enhancing their impact and tensile strength, making them less prone to deformation or breakage due to external forces.

[0017] The densification of the cross-linked network structure reduces internal pores and defects in the material. Combined with the synergistic effect of UV absorbers and antioxidants, it effectively blocks UV penetration and oxygen erosion, thus slowing down the aging process.

[0018] By optimizing the microstructure of the material surface and reducing surface roughness, combined with subsequent polishing processes, the gloss and texture of the bottle cap surface are further enhanced, giving it a uniform and translucent high-end appearance. Detailed Implementation

[0019] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the invention.

[0020] Where specific techniques or conditions are not specified in the examples, they shall be performed in accordance with the techniques or conditions described in the literature in this field, or in accordance with the product instructions. Reagents or instruments whose manufacturers are not specified are all conventional products that can be purchased through legitimate channels.

[0021] The testing method involved in this invention is as follows: 1. Gloss test: A gloss meter was used to measure the surface gloss of each sample. Gloss is assessed by measuring the intensity of light reflected from the material surface, and the unit is GU (gloss unit). The testing environment was standard room temperature (25°C) and relative humidity of 50%.

[0022] 2. Weather resistance (UV aging) test: Accelerated aging tests were conducted on the samples using a UV aging test chamber. The samples were exposed to UV-A ultraviolet light to simulate the effects of long-term UV exposure. The test conditions were 100 hours of exposure at 80°C for each sample, followed by examination of surface changes.

[0023] 3. Mechanical performance testing: Impact resistance: The impact resistance of each sample was tested using a drop hammer impact tester, and its impact resistance (unit: J / m) was measured. During the test, a standard metal impact head was used, and the impact height and impact volume were set to standard values.

[0024] Tensile strength: Each sample was subjected to tensile testing using a tensile testing machine to measure its tensile strength and elongation. Example

[0025] A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 50 kg ABS, 20 kg PS, 2 kg epoxy succinic acid polymer, 5 kg K glue, 0.2 kg aminoferrocene (CAS: 1273-82-1), 0.01 kg 2-methylimidazole, 0.1 kg antioxidant, and 0.2 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound; wherein, the antioxidant is selected from 1010, and the UV absorber is selected from UV-531; the mixing temperature of the high-speed mixer is 80℃, and the stirring time is 10 minutes; 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 230℃, the injection pressure is controlled at 80MPa, and the injection time is 10 seconds. After molding, the perfume bottle cap is cooled at 20℃ for 1 minute. 3. Polish the surface of the perfume bottle cap after it has cooled and solidified to improve its gloss and weather resistance; the polishing temperature should be controlled at 30℃ and the polishing time should be 1 minute. Example

[0026] A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 55 kg ABS, 25 kg PS, 3 kg epoxy succinic acid polymer, 8 kg K glue, 0.3 kg aminoferrocene (CAS: 1273-82-1), 0.03 kg 2-methylimidazole, 0.3 kg antioxidant, and 0.8 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound; wherein, the antioxidant is selected from 168, and the UV absorber is selected from Tinuvin 328; the mixing temperature of the high-speed mixer is 85℃, and the stirring time is 13 minutes; 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 237℃, the injection pressure is controlled at 85MPa, and the injection time is 12 seconds. After molding, the perfume bottle cap is cooled at 23℃ for 1.3 minutes. 3. Polish the surface of the perfume bottle cap after it has cooled to improve its gloss and weather resistance; the polishing temperature is controlled at 33℃ and the polishing time is 1.5 minutes. Example

[0027] A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 65 kg ABS, 35 kg PS, 4 kg epoxy succinic acid polymer, 12 kg K glue, 0.4 kg aminoferrocene (CAS: 1273-82-1), 0.06 kg 2-methylimidazole, 0.7 kg antioxidant, and 1.4 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound. The antioxidant is selected from a mixture of 1010 and 168 (mass ratio 1:1), and the UV absorber is selected from a mixture of UV-531 and UV-P (mass ratio 1:1). The high-speed mixer is used at a mixing temperature of 95℃ for 17 minutes. 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 243℃, the injection pressure is controlled at 95MPa, and the injection time is 14 seconds. After molding, the perfume bottle cap is cooled at 27℃ for 1.7 minutes. 3. Polish the surface of the perfume bottle cap after it has cooled to improve its gloss and weather resistance; the polishing temperature is controlled at 37℃ and the polishing time is 2.5 minutes. Example

[0028] A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 70 kg ABS, 40 kg PS, 5 kg epoxy succinic acid polymer, 15 kg K glue, 0.5 kg aminoferrocene (CAS: 1273-82-1), 0.08 kg 2-methylimidazole, 1.0 kg antioxidant, and 2.0 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound. The antioxidant is selected from a mixture of 1010 and 168 (mass ratio 2:1), and the UV absorber is selected from a mixture of Tinuvin 328 and UV-P (mass ratio 2:1). The high-speed mixer is used at a mixing temperature of 100℃ for 20 minutes. 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 250℃, the injection pressure is controlled at 100MPa, and the injection time is 15 seconds. After molding, the perfume bottle cap is cooled at 30℃ for 2 minutes. 3. Polish the surface of the perfume bottle cap after it has cooled and solidified to improve its gloss and weather resistance; the polishing temperature should be controlled at 40℃ and the polishing time should be 3 minutes.

[0029] Comparative Example 1 A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 50 kg ABS, 20 kg PS, 5 kg K glue, 0.2 kg aminoferrocene (CAS: 1273-82-1), 0.01 kg 2-methylimidazole, 0.1 kg antioxidant, and 0.2 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound; wherein, the antioxidant is selected from 1010, and the UV absorber is selected from UV-531; the mixing temperature of the high-speed mixer is 80℃, and the stirring time is 10 minutes; 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 230℃, the injection pressure is controlled at 80MPa, and the injection time is 10 seconds. After molding, the perfume bottle cap is cooled at 20℃ for 1 minute. 3. Polish the surface of the perfume bottle cap after it has cooled and solidified to improve its gloss and weather resistance; the polishing temperature should be controlled at 30℃ and the polishing time should be 1 minute.

[0030] Comparative Example 2 A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 50 kg ABS, 20 kg PS, 2 kg epoxy succinic acid polymer, 5 kg K glue, 0.01 kg 2-methylimidazole, 0.1 kg antioxidant, and 0.2 kg UV absorber are mixed in a high-speed mixer to obtain a homogeneous composite compound; wherein, the antioxidant is selected from 1010, and the UV absorber is selected from UV-531; the mixing temperature of the high-speed mixer is 80℃, and the stirring time is 10 minutes; 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 230℃, the injection pressure is controlled at 80MPa, and the injection time is 10 seconds. After molding, the perfume bottle cap is cooled at 20℃ for 1 minute. 3. Polish the surface of the perfume bottle cap after it has cooled and solidified to improve its gloss and weather resistance; the polishing temperature should be controlled at 30℃ and the polishing time should be 1 minute.

[0031] Comparative Example 3 A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap includes the following steps: 1. By mass fraction, 50 kg ABS, 20 kg PS, 2 kg epoxy succinic acid polymer, 5 kg K glue, 0.2 kg aminoferrocene (CAS: 1273-82-1), 0.1 kg antioxidant, and 0.2 kg UV absorber are mixed in a high-speed mixer to obtain a uniform composite compound; wherein, the antioxidant is selected from 1010, and the UV absorber is selected from UV-531; the mixing temperature of the high-speed mixer is 80℃, and the stirring time is 10 minutes; 2. The perfume bottle cap is formed by injecting the composite rubber material into the mold using the injection molding process. The specific injection molding process is as follows: the composite rubber material is heated to 230℃, the injection pressure is controlled at 80MPa, and the injection time is 10 seconds. After molding, the perfume bottle cap is cooled at 20℃ for 1 minute. 3. Polish the surface of the perfume bottle cap after it has cooled and solidified to improve its gloss and weather resistance; the polishing temperature should be controlled at 30℃ and the polishing time should be 1 minute.

[0032] Table of test results gloss Weather resistance (after 100 hours of UV aging) Impact resistance Tensile strength Example 1 92.5 GU No obvious fading, gloss level reduced to 88.8 GU, no surface cracks. 12.2 J / m 35.7 MPa Example 2 93.1 GU No obvious fading, gloss level reduced to 89.5 GU, no surface cracks. 12.5 J / m 36.2 MPa Example 3 93.5GU No obvious fading, gloss level reduced to 90.3 GU, no surface cracks. 12.9 J / m 36.5 MPa Example 4 94.0 GU No obvious fading, gloss level reduced to 91.1 GU, no surface cracks. 13.4 J / m 36.9MPa Comparative Example 1 88.5GU Visible discoloration, gloss reduced to 87.0 GU, and fine cracks visible on the surface. 10.3 J / m 33.2 MPa Comparative Example 2 89.8 GU No obvious fading, gloss level reduced to 87.7 GU, and a few fine cracks on the surface. 10.9 J / m 33.8 MPa Comparative Example 3 90.2 GU No obvious fading, gloss level reduced to 88.1 GU, no surface cracks. 11.1 J / m 34.0 MPa This invention innovatively introduces a ring-opening reaction between aminoferrocene and epoxy succinic acid polymers, breaking through the limitations of traditional compound materials that rely solely on physical blending. It achieves deep integration of the components through chemical cross-linking. This reaction not only solves the performance balance problem between mechanical strength, weather resistance, and gloss in single resins or simple blends, but also allows perfume bottle caps to maintain a high-end appearance while possessing superior durability and stability, providing key technical support for the performance upgrade of high-end cosmetic packaging materials.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap, characterized in that, Includes the following steps: A) Mix 50-70 parts ABS, 20-40 parts PS, 2-5 parts epoxy succinic acid polymer, 5-15 parts K glue, 0.2-0.5 parts aminoferrocene, 0.01-0.08 parts 2-methylimidazole, 0.1-1.0 parts antioxidant and 0.2-2 parts ultraviolet absorber in a high-speed mixer to obtain a uniform composite adhesive. B) The perfume bottle cap is obtained by injecting the composite material into the mold using the injection molding process. C) Polish the surface of the molded perfume bottle cap to improve its gloss and weather resistance.

2. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The antioxidant is selected from one of 1010 and 168 or any combination thereof.

3. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The ultraviolet absorber is selected from UV-531, Tinuvin 328, or UV-P.

4. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The high-speed mixer has a mixing temperature of 80-100℃.

5. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The high-speed mixer has a mixing time of 10-20 minutes.

6. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The injection molding process includes: heating the composite material to 230℃-250℃, controlling the injection pressure at 80-100MPa, and the injection time at 10-15 seconds.

7. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The formed perfume bottle cap undergoes a cooling treatment, with the cooling temperature controlled between 20°C and 30°C, and the cooling time being 1-2 minutes.

8. The method for preparing a high-gloss, weather-resistant ABS-PS-K ternary composite injection molded perfume bottle cap according to claim 1, characterized in that: The polishing temperature is controlled between 30°C and 40°C, and the polishing time is 1-3 minutes.