High-gloss black bright polyphenylene sulfide material and preparation method and application thereof

Abstract

The application belongs to the technical field of polyphenylene sulfide materials, and discloses a high-light black bright polyphenylene sulfide material and a preparation method and application thereof.Raw materials of the application are as follows: 40-77 parts of polyphenylene sulfide resin, 20-50 parts of glass fiber, 2-10 parts of black sand, 1-5 parts of a compatilizer, 0.1-0.3 parts of a dispersing agent, 0.1-0.5 parts of a lubricant, and 0.1-0.3 parts of a coupling agent.The polyphenylene sulfide material is made darker by adding the black sand, and is made brighter by adding the black sand, the lubricant and the dispersing agent, and the black sand simultaneously increases the blackness and the brightness, thereby improving the surface gloss of the polyphenylene sulfide material, and simultaneously making the polyphenylene sulfide material have high toughness and high rigidity.

Description

Technical Field

[0001] This invention relates to the field of polyphenylene sulfide materials technology, and in particular to a high-gloss black polyphenylene sulfide material, its preparation method, and its application. Background Technology

[0002] Polyphenylene sulfide (PPS) is one of the six major engineering plastics in the plastics industry today (ranking sixth in the engineering plastics ranking after polyamide, polycarbonate, polyester, polyoxymethylene, and polyphenylene sulfide). Due to its special properties, it is also known as a special engineering plastic in the plastics industry. It has properties such as non-toxicity, high temperature resistance, radiation resistance, flame retardancy, high modulus, high dimensional stability, self-lubrication, and resistance to chemical corrosion. It has a wide range of applications and a very promising development prospect.

[0003] Developing high-gloss black polyphenylene sulfide (PPS) materials can enable innovative applications in multiple fields due to their unique performance and appearance advantages. For example, in the automotive industry, this material can be used to manufacture high-quality interior components; in the electronics industry, it can be used to create stylish and durable casings and accessories; and in the construction industry, it can be used to create decorative materials with unique aesthetics and durability. However, existing PPS materials are not bright or black enough, and normal brightness does not result in fiber shedding. High-gloss black PPS materials require further blackening and brightening for use as casings, and customers using PPS for external components such as computer casings require a glossy black appearance.

[0004] Therefore, how to provide a high-gloss black polyphenylene sulfide material is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a high-gloss black polyphenylene sulfide material, its preparation method and application, to solve the problem that traditional polyphenylene sulfide materials are not bright enough or black enough.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solution: This invention provides a high-gloss black polyphenylene sulfide material, comprising the following raw materials in parts by weight: The composition includes 40-77 parts polyphenylene sulfide resin, 20-50 parts glass fiber, 2-10 parts black sand, 1-5 parts compatibilizer, 0.1-0.3 parts dispersant, 0.1-0.5 parts lubricant, and 0.1-0.3 parts coupling agent.

[0007] Preferably, the dispersant is ethylene bis-stearamide.

[0008] Preferably, the lubricant is silicone powder.

[0009] Preferably, the coupling agent is KH560.

[0010] This invention also provides a method for preparing a high-gloss black polyphenylene sulfide material, comprising the following steps: The polyphenylene sulfide resin and coupling agent are first mixed, then black sand, compatibilizer, dispersant and lubricant are added for a second mixing, and then glass fiber is added for extrusion granulation to obtain high-gloss black polyphenylene sulfide material.

[0011] Preferably, the first mixing time is 10-60 min; the second mixing time is 10-60 min.

[0012] Preferably, the extrusion granulation temperature is 200~300℃.

[0013] The present invention also provides a high-gloss black polyphenylene sulfide material or a method for preparing a high-gloss black polyphenylene sulfide material, and the application of such a material in automotive interior parts, electronic product accessories or building decoration materials.

[0014] As can be seen from the above technical solution, compared with the prior art, the present invention has the following beneficial effects: This invention provides a high-gloss black polyphenylene sulfide (PPS) material, comprising the following raw materials in parts by weight: 40-77 parts PPS resin, 20-50 parts glass fiber, 2-10 parts black sand, 1-5 parts compatibilizer, 0.1-0.3 parts dispersant, 0.1-0.5 parts lubricant, and 0.1-0.3 parts coupling agent. This invention makes the PPS material darker by adding black sand, and brighter by adding black sand, lubricant, and dispersant. The black sand simultaneously increases both blackness and brightness, thereby improving the surface gloss of the PPS material, while also giving it high toughness and high rigidity. Detailed Implementation

[0015] This invention provides a high-gloss black polyphenylene sulfide material, comprising the following raw materials in parts by weight: The composition includes 40-77 parts polyphenylene sulfide resin, 20-50 parts glass fiber, 2-10 parts black sand, 1-5 parts compatibilizer, 0.1-0.3 parts dispersant, 0.1-0.5 parts lubricant, and 0.1-0.3 parts coupling agent.

[0016] In this invention, the polyphenylene sulfide resin is preferably 45-70 parts by mass, more preferably 50-60 parts, and even more preferably 51.5 parts.

[0017] In this invention, the preferred mass fraction of the glass fiber is 25-48 parts, more preferably 35-45 parts, and even more preferably 40 parts. In this invention, increasing the amount of glass fiber leads to a deterioration in the appearance of the polyphenylene sulfide material, while decreasing the amount of glass fiber improves the appearance but degrades the mechanical properties. Therefore, it is necessary to control the amount of glass fiber used.

[0018] In this invention, the mass fraction of the black sand is preferably 3 to 9 parts, more preferably 4 to 7 parts, and even more preferably 5 parts.

[0019] In this invention, the compatibilizer is preferably used in quantities of 1 to 4 parts by mass, more preferably 2 to 4 parts, and even more preferably 3 parts. Reducing the amount of compatibilizer will result in poor plasticization of the polyphenylene sulfide material, ultimately leading to a deterioration in appearance.

[0020] In this invention, the mass fraction of the dispersant is preferably 0.1 to 0.25 parts, more preferably 0.1 to 0.2 parts, and even more preferably 0.1 parts. The role of the dispersant in this invention is to make other additives disperse more evenly. Without a dispersant, the mixture will not disperse evenly, ultimately leading to unstable performance and appearance.

[0021] In this invention, the lubricant is preferably 0.15 to 0.45 parts by mass, more preferably 0.2 to 0.4 parts, and even more preferably 0.3 parts. The lubricant in this invention improves fluidity. Reducing the amount of lubricant will affect the fluidity of the polyphenylene sulfide material, resulting in insufficient filling of the mold, thus requiring increased temperature and pressure. Excessive temperature can also cause partial carbonization of the polyphenylene sulfide material, thus affecting its appearance.

[0022] In this invention, the coupling agent is preferably 0.1 to 0.25 parts by mass, more preferably 0.1 to 0.15 parts, and even more preferably 0.1 parts. Reducing the coupling agent content or omitting the coupling agent will result in poor interlocking between the glass fiber and the polyphenylene sulfide resin, poor compatibility, and a deterioration in the appearance of the exposed glass fiber.

[0023] In this invention, the melt index of the polyphenylene sulfide resin is preferably 200~500g / 10min, more preferably 200~300g / 10min, and even more preferably 200g / 10min.

[0024] In this invention, the dispersant is preferably ethylene bis-stearamide (EBS).

[0025] In this invention, the lubricant is preferably silicone powder.

[0026] In this invention, the coupling agent is preferably KH560.

[0027] This invention also provides a method for preparing a high-gloss black polyphenylene sulfide material, comprising the following steps: The polyphenylene sulfide resin and coupling agent are first mixed, then black sand, compatibilizer, dispersant and lubricant are added for a second mixing, and then glass fiber is added for extrusion granulation to obtain high-gloss black polyphenylene sulfide material.

[0028] In this invention, the first mixing time is preferably 10-60 min, more preferably 20-40 min, and even more preferably 30 min.

[0029] In this invention, the second mixing time is preferably 10-60 min, more preferably 12-20 min, and even more preferably 15 min.

[0030] In this invention, the extrusion granulation temperature is preferably 200~300℃.

[0031] The present invention also provides a high-gloss black polyphenylene sulfide material or a method for preparing a high-gloss black polyphenylene sulfide material, and the application of such a material in automotive interior parts, electronic product accessories or building decoration materials.

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] This embodiment provides a high-gloss black polyphenylene sulfide material, comprising the following parts by weight of raw materials: 51.5 parts of polyphenylene sulfide resin (brand: Xinhecheng, melt index: 200g / 10min), 40 parts of glass fiber (model: Jushi 988A, diameter: 13μm), 5 parts of black sand (model: Cabot 2005), 3 parts of compatibilizer (manufacturer: Nanhai Baichen, model: AD-88), 0.1 parts of dispersant EBS (brand: Kao), 0.3 parts of lubricant silicone powder (Xingbeida (Shanghai) Chemical Materials Co., Ltd.), and 0.1 parts of coupling agent KH560.

[0035] The preparation method of the above-mentioned high-gloss black polyphenylene sulfide material includes the following steps: Polyphenylene sulfide resin and coupling agent KH560 were stirred and homogenized for 30 minutes. Then, black sand, compatibilizer, dispersant EBS, and lubricant silicone powder were added and stirred and homogenized for 15 minutes. Glass fiber was then added, and the mixture was fed into a twin-screw extruder for extrusion granulation. The extruder temperature was set in the order of zones 1-10 as follows: 300℃, 280℃, 260℃, 240℃, 220℃, 220℃, 200℃, 200℃, 280℃, and 300℃, to obtain a high-gloss black polyphenylene sulfide material.

[0036] Notched impact strength, tensile strength, and elongation at break were tested according to GB / T 1043.1-2008; flexural strength was tested according to GB / T 9341-2008; and density was tested according to GB / T 1033.1-2008. The performance test results for the high-gloss black polyphenylene sulfide material are as follows: notched impact strength is 8 kJ / m². 2 The tensile strength is 130 MPa, the elongation at break is 2.8%, the flexural strength is 215 MPa, and the density is 1.78 g / cm³. 3 .

[0037] The blackness of the high-gloss black polyphenylene sulfide material was tested using a colorimeter, and the results were: L value (brightness) 28, C value (chroma) 1.5.

[0038] Example 2

[0039] This embodiment provides a high-gloss black polyphenylene sulfide material, comprising the following parts by weight of raw materials: 48.5 parts of polyphenylene sulfide resin (brand: Xinhecheng, melt index: 200g / 10min), 40 parts of glass fiber (model: Jushi 988A, diameter: 13μm), 8 parts of black sand (model: Cabot 2005), 3 parts of compatibilizer (manufacturer: Nanhai Baichen, model: AD-88), 0.1 parts of dispersant EBS (brand: Kao), 0.3 parts of lubricant silicone powder (Xingbeida (Shanghai) Chemical Materials Co., Ltd.), and 0.1 parts of coupling agent KH560.

[0040] For details on the preparation method of the above-mentioned high-gloss black polyphenylene sulfide material, please refer to Example 1.

[0041] The performance test results of the high-gloss black polyphenylene sulfide material are as follows: notched impact strength is 5 kJ / m. 2 The tensile strength is 110 MPa, the elongation at break is 2.0%, the flexural strength is 190 MPa, and the density is 1.79 g / cm³. 3 .

[0042] The blackness of the high-gloss black polyphenylene sulfide material was tested using a colorimeter, and the results were: L value (brightness) was 25 and C value (chroma) was 1.7.

[0043] Example 3

[0044] This embodiment provides a high-gloss black polyphenylene sulfide material, comprising the following parts by weight of raw materials: 60 parts of polyphenylene sulfide resin (brand: Xinhecheng, melt index: 200g / 10min), 36 parts of glass fiber (model: Jushi 988A, diameter: 13μm), 3 parts of black sand (model: Cabot 2005), 1 part of compatibilizer (manufacturer: Nanhai Baichen, model: AD-88), 0.3 parts of dispersant EBS (brand: Kao), 0.5 parts of lubricant silicone powder (Xingbeida (Shanghai) Chemical Materials Co., Ltd.), and 0.2 parts of coupling agent KH560.

[0045] For details on the preparation method of the above-mentioned high-gloss black polyphenylene sulfide material, please refer to Example 1.

[0046] The performance test results of the high-gloss black polyphenylene sulfide material are as follows: notched impact strength is 9 kJ / m. 2 The tensile strength is 138 MPa, the elongation at break is 3%, the flexural strength is 225 MPa, and the density is 1.77 g / cm³. 3 .

[0047] The blackness of the high-gloss black polyphenylene sulfide material was tested using a colorimeter, and the results were: L value (brightness) was 30 and C value (chroma) was 1.3.

[0048] The results show that the polyphenylene sulfide material in Example 2 is the best in terms of high gloss blackness, but considering both physical properties and high gloss blackness, Example 1 has the best performance.

[0049] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A high-gloss black polyphenylene sulfide material, characterized in that, Raw materials comprising the following parts by weight: The composition includes 40-77 parts polyphenylene sulfide resin, 20-50 parts glass fiber, 2-10 parts black sand, 1-5 parts compatibilizer, 0.1-0.3 parts dispersant, 0.1-0.5 parts lubricant, and 0.1-0.3 parts coupling agent.

2. The high-gloss black polyphenylene sulfide material according to claim 1, characterized in that, The dispersant is ethylene bis-stearamide.

3. The high-gloss black polyphenylene sulfide material according to claim 2, characterized in that, The lubricant is silicone powder.

4. The high-gloss black polyphenylene sulfide material according to claim 3, characterized in that, The coupling agent is KH560.

5. A method for preparing a high-gloss black polyphenylene sulfide material according to any one of claims 1 to 4, characterized in that, Includes the following steps: The polyphenylene sulfide resin and coupling agent are first mixed, then black sand, compatibilizer, dispersant and lubricant are added for a second mixing, and then glass fiber is added for extrusion granulation to obtain high-gloss black polyphenylene sulfide material.

6. The method for preparing a high-gloss black polyphenylene sulfide material according to claim 5, characterized in that, The first mixing time is 10-60 min; the second mixing time is 10-60 min.

7. The method for preparing a high-gloss black polyphenylene sulfide material according to claim 6, characterized in that, The extrusion granulation temperature is 200~300℃.

8. The application of a high-gloss black polyphenylene sulfide material prepared by any one of claims 1 to 4 or any one of claims 5 to 7 in automotive interior parts, electronic product accessories or building decoration materials.