An ASA glass fiber composite material, its preparation method and application

Abstract

This application discloses an ASA glass fiber composite material, its preparation method, and its application, relating to the field of plastic parts technology. The ASA glass fiber composite material of this application comprises the following components by weight: 89.6-94.6 parts ASA resin, 5-10 parts glass fiber, 0.8-2 parts lubricant, and 0.04-0.08 parts plasticizer; the lubricant includes organic lubricants. By adding glass fiber, lubricant, and plasticizer to ASA resin and adjusting the weight ratio of ASA resin, glass fiber, lubricant, and plasticizer in the ASA glass fiber composite material, the melt flow index, impact strength, and Vicat softening point of the prepared ASA glass fiber composite material are all improved, meeting the qualification requirements.

Description

Technical Field

[0001] This application relates to the technical field, and in particular to an ASA glass fiber composite material, its preparation method, and its application. Background Technology

[0002] ASA is a ternary polymer composed of acrylonitrile, styrene, and acrylic rubber, and belongs to the category of impact-modified resins.

[0003] ASA resin possesses excellent mechanical and physical properties as well as good weather resistance, making it frequently used in automotive interior and exterior trim, especially in exterior plastic parts, where good impact strength is required. Due to factors such as direct sunlight, the temperature of car exteriors in summer often far exceeds the actual day's temperature, necessitating high-temperature resistance for exterior plastic parts. Automotive exterior parts also require good sealing performance, resulting in numerous snap-fit ​​components. This necessitates a high melt flow index for the material during molding. However, current ASA resin materials do not simultaneously meet the performance requirements of automotive exterior parts, thus requiring improvement. Summary of the Invention

[0004] In order to solve at least one of the above-mentioned technical problems and develop an ASA material with good impact resistance, high Vicat softening point and high melt flow index, this application provides an ASA glass fiber composite material, its preparation method and application.

[0005] On one hand, this application provides an ASA glass fiber composite material, comprising the following components in parts by weight: 89.6-94.6 parts of ASA resin, 5-10 parts of glass fiber, 0.8-2 parts of lubricant, and 0.04-0.08 parts of plasticizer; wherein the lubricant comprises an organic lubricant.

[0006] By adopting the above technical solution and adjusting the weight ratio of ASA resin, glass fiber, lubricant and plasticizer in the ASA glass fiber composite material, the melt flow index, impact strength and Vicat softening point of the prepared ASA glass fiber composite material are improved, meeting the qualification requirements.

[0007] Optionally, the lubricant may also include attapulgite clay and a coupling agent.

[0008] By adopting the above technical solution, the lubricating properties of attapulgite can be utilized to further improve the melt flow index of ASA glass fiber composites and slightly increase the specific gravity of ASA glass fiber composites to make them suitable for use in automotive exterior parts. At the same time, the strong adsorption properties of attapulgite can effectively adsorb organic lubricants and uniformly disperse them in ASA glass fiber composites, further improving the melt flow index of ASA glass fiber composites. Coupling agents can improve the adhesion between attapulgite and organic lubricants, allowing the components in the lubricant to be evenly distributed.

[0009] Optionally, in the lubricant, the weight ratio of attapulgite clay to organic lubricant is (4-6):(4-6).

[0010] Optionally, in the lubricant, the weight ratio of attapulgite clay to organic lubricant is (4.5-5.5):(4.5-5.5).

[0011] By adopting the above technical solution, the weight ratio of attapulgite to organic lubricant is adjusted to avoid adding too much attapulgite, which would affect the impact strength of the material, while ensuring that sufficient attapulgite can improve the melt flow index and Vicat softening point of the material.

[0012] Optionally, the coupling agent is one or a combination of silane coupling agents and titanate coupling agents.

[0013] Optionally, the organic lubricant is ethylene bis-stearamide.

[0014] Secondly, this application provides a method for preparing the above-mentioned ASA glass fiber composite material, including the following steps:

[0015] S1 weighs all the raw materials according to the weight ratio;

[0016] S2 Turn on the mixer, pour in the attapulgite clay and organic lubricant, keep stirring, add the coupling agent, continue stirring, and obtain the lubricant;

[0017] S3 adds ASA resin, glass fiber, lubricant and plasticizer into an extruder for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0018] Optionally, in step S2, the mixer is turned on at a speed of 180-240 r / min, and the attapulgite clay and organic lubricant are poured in and kept stirring for 3-5 minutes.

[0019] Optionally, in step S2, after adding the coupling agent, the rotation speed is reduced to 120-150 r / min, and the stirring time is 8-10 min.

[0020] By adopting the above technical solution, a short period of high rotation speed can quickly disperse and evenly distribute attapulgite and organic lubricant, while a longer period of low rotation speed can improve the dispersion uniformity without affecting the reaction between the coupling agent and attapulgite and organic lubricant.

[0021] Thirdly, this application provides the application of the aforementioned ASA glass fiber composite material in the field of automotive exterior parts.

[0022] In summary, the present invention has at least one of the following beneficial technical effects:

[0023] 1. Adding glass fiber to enhance the impact strength of ASA glass fiber composites, and adding lubricant to improve the melt flow index of ASA glass fiber composites;

[0024] 2. By adjusting the weight ratio of ASA resin, glass fiber, lubricant, and plasticizer in the ASA glass fiber composite material, the melt flow index, impact strength, and Vicat softening point of the prepared ASA glass fiber composite material were all improved, meeting the qualification requirements. Detailed Implementation

[0025] The present application will be further described in detail below with reference to the embodiments.

[0026] This application designs an ASA glass fiber composite material, comprising the following components by weight: 89.6-94.6 parts of ASA resin, 5-10 parts of glass fiber, 0.8-2 parts of lubricant, and 0.04-0.08 parts of plasticizer; wherein the lubricant includes an organic lubricant.

[0027] Adding glass fiber to ASA resin is a common way to improve impact strength. However, while the impact strength of ASA resin increases after adding glass fiber, its melt flow index decreases, making it more difficult to process. Furthermore, its high-temperature resistance does not meet the requirements for automotive exterior parts, especially black automotive exterior parts. Therefore, the applicant adjusted the weight proportions of each component in the ASA glass fiber composite material to 89.6-94.6 parts of ASA resin, 5-10 parts of glass fiber, 0.8-2 parts of lubricant, and 0.04-0.08 parts of plasticizer. The resulting ASA glass fiber composite material then met the required standards for melt flow index, impact strength, and Vicat softening point.

[0028] Furthermore, when the selected lubricant is a compound lubricant consisting of attapulgite, coupling agent, and organic lubricant, the overall performance of ASA glass fiber composite material is further improved. In particular, when the weight ratio of attapulgite to organic lubricant in the lubricant is (4.5-5.5):(4.5-5.5), the melt flow index of ASA glass fiber composite material is significantly improved, and the Vicat softening point is also significantly improved, making it better suited for application in the automotive exterior parts field.

[0029] The ASA glass fiber composite material of this application is prepared by the following method, including the following steps:

[0030] S1 weighs all the raw materials according to the weight ratio;

[0031] S2 Turn on the mixer, pour in the attapulgite clay and organic lubricant, keep stirring, add the coupling agent, continue stirring, and obtain the lubricant;

[0032] S3 adds ASA resin, glass fiber, lubricant and plasticizer into an extruder for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0033] The ASA glass fiber composite material of this application can be used in the field of automotive exterior parts. Specific Implementation

[0035] Unless otherwise specified, all raw materials involved in this application are purchased from commercially available products.

[0036] Preparation Example 1

[0037] Turn on the mixer at 180 r / min, pour in 0.4 kg of attapulgite clay and 0.6 kg of ethylene bis-stearamide, keep stirring for 5 min, add 0.02 kg of silane coupling agent and 0.03 kg of titanate coupling agent, then reduce the speed to 150 r / min and stir for 8 min to obtain the lubricant.

[0038] Preparation Example 2

[0039] Turn on the mixer at 240 r / min, add 0.45 kg of attapulgite and 0.55 kg of ethylene bis-stearamide, keep stirring for 3 minutes, add 0.05 kg of silane coupling agent, reduce the speed to 120 r / min, and stir for 10 minutes to obtain the lubricant.

[0040] Preparation Example 3

[0041] Turn on the mixer at 210 r / min, add 0.5 kg of attapulgite clay and 0.5 kg of ethylene bis-stearamide, keep stirring for 4 min, add 0.05 kg of titanate coupling agent, reduce the speed to 120 r / min, and stir for 8 min to obtain the lubricant.

[0042] Preparation Example 4

[0043] Turn on the mixer at 180 r / min, add 0.55 kg of attapulgite clay and 0.45 kg of ethylene bis-stearamide, keep stirring for 4 min, add 0.02 kg of silane coupling agent and 0.03 kg of titanate coupling agent, then reduce the speed to 150 r / min and stir for 10 min to obtain the lubricant.

[0044] Preparation Example 5

[0045] Turn on the mixer at 240 r / min, add 0.6 kg of attapulgite clay and 0.4 kg of ethylene bis-stearamide, keep stirring for 4 min, add 0.02 kg of silane coupling agent and 0.03 kg of titanate coupling agent, then reduce the speed to 150 r / min and stir for 9 min to obtain the lubricant.

[0046] Example 1

[0047] 8.96 kg of ASA resin, 0.1 kg of ethylene bis-stearamide and 0.004 kg of PEG-200 were mixed and then added to an extruder with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0048] Example 2

[0049] 9 kg of ASA resin, 0.12 kg of ethylene bis-stearamide and 0.005 kg of PEG-400 were mixed and then added to an extruder with 0.7 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0050] Example 3

[0051] 9.1 kg of ASA resin, 0.18 kg of ethylene bis-stearamide, 0.003 kg of PEG-200 and 0.003 kg of PEG-400 were mixed and then added to an extruder with 0.9 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0052] Example 4

[0053] 9.2 kg of ASA resin, 0.14 kg of ethylene bis-stearamide and 0.007 kg of PEG-400 were mixed and then added to an extruder with 1 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0054] Example 5

[0055] 9.3 kg of ASA resin, 0.16 kg of ethylene bis-stearamide, 0.004 kg of PEG-200 and 0.004 kg of PEG-400 were mixed and then added to an extruder with 0.8 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0056] Example 6

[0057] 9.4 kg of ASA resin, 0.2 kg of ethylene bis-stearamide, 0.002 kg of PEG-200 and 0.003 kg of PEG-400 were mixed and then added to an extruder with 0.6 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0058] Example 7

[0059] 9.46 kg of ASA resin, 0.08 kg of ethylene bis-stearamide and 0.007 kg of PEG-200 were mixed and then added to an extruder with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0060] Comparative Example 1

[0061] 8.9 kg of ASA resin, 0.12 kg of ethylene bis-stearamide and 0.005 kg of PEG-200 were mixed and then added to an extruder with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0062] Comparative Example 2

[0063] 9.5 kg of ASA resin, 0.22 kg of ethylene bis-stearamide and 0.006 kg of PEG-200 were mixed and then added to an extruder along with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0064] The performance of the ASA glass fiber composite materials prepared in Examples 1-7 and Comparative Examples 1-2 was tested as follows: the melt flow index of the materials in this application was tested according to ISO 1133 (acceptable range: 3.00-5.00 ml / 10 min); the impact strength was tested according to ISO 179 (acceptable range: 5.00-6.00 kJ / m). 2 The Vicat softening point was tested according to ISO 306 (acceptable range: 104-108℃); the specific gravity was tested according to ISO 1183 (acceptable range: 1.1-1.15). The test results are shown in Table 1.

[0065] Table 1 shows the detection performance results of Examples 1-7 and Comparative Examples 1-2.

[0066]

[0067] As can be seen from Examples 1-7, Comparative Examples 1-2, and Table 1, the ASA glass fiber composite masterbatch prepared in Examples 1-7 has a higher melt flow index, impact strength, and Vicat softening point than the ASA glass fiber composite masterbatch prepared in Comparative Examples 1-2. Therefore, it can be seen that the ASA glass fiber composite masterbatch prepared in this application by using the following components in parts by weight: 89.6-94.6 parts of ASA resin, 5-10 parts of glass fiber, 0.8-2 parts of lubricant, and 0.04-0.08 parts of plasticizer, has good overall performance.

[0068] The difference between Examples 8-14 and Examples 1-7 is that the lubricant in Examples 8-14 is the lubricant prepared in Examples 1-7.

[0069] Example 8

[0070] 8.96 kg of ASA resin, 0.1 kg of lubricant prepared in Preparation Example 1, and 0.004 kg of PEG-200 were mixed and then added to an extruder along with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0071] Example 9

[0072] 9 kg of ASA resin, 0.12 kg of the lubricant prepared in Preparation Example 2, and 0.005 kg of PEG-400 were mixed and then added to an extruder with 0.7 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0073] Example 10

[0074] 9.1 kg of ASA resin, 0.18 kg of lubricant prepared in Preparation Example 3, 0.003 kg of PEG-200 and 0.003 kg of PEG-400 were mixed and then added to an extruder with 0.9 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0075] Example 11

[0076] 9.2 kg of ASA resin, 0.14 kg of the lubricant prepared in Preparation Example 4, and 0.007 kg of PEG-400 were mixed and then added to an extruder with 1 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0077] Example 12

[0078] 9.3 kg of ASA resin, 0.16 kg of lubricant prepared in Preparation Example 5, 0.004 kg of PEG-200 and 0.004 kg of PEG-400 were mixed and then added to an extruder with 0.8 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0079] Example 13

[0080] 9.4 kg of ASA resin, 0.2 kg of lubricant prepared in Preparation Example 2, 0.002 kg of PEG-200 and 0.003 kg of PEG-400 were mixed and then added to an extruder with 0.6 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0081] Example 14

[0082] 9.46 kg of ASA resin, 0.08 kg of lubricant prepared in Preparation Example 4, and 0.007 kg of PEG-200 were mixed and then added to an extruder along with 0.5 kg of glass fiber for extrusion granulation to obtain ASA glass fiber composite masterbatch.

[0083] The performance of the ASA glass fiber composite materials prepared in Examples 8-14 was tested, and the results are shown in Table 2.

[0084] Table 2 Detection performance results of Examples 8-14

[0085]

[0086] As can be seen from Examples 8-14 and Table 2, the lubricants prepared in Preparation Examples 1-7 can improve the melt flow index, impact strength, and Vicat softening point of the ASA glass fiber composite masterbatch, resulting in better overall performance of the ASA glass fiber composite masterbatch. Furthermore, a comparison between Examples 8-14 and Examples 1-7 shows that adjusting the weight ratio of attapulgite to organic lubricant in the lubricant has different effects on the improvement of the melt flow index, impact strength, and Vicat softening point of the ASA glass fiber composite masterbatch. Considering the performance parameters in Examples 1-4, Table 1, and Table 2, the addition of the ASA glass fiber composite masterbatch from Preparation Examples 2, 3, and 4 results in a higher overall improvement in melt flow index, impact strength, and Vicat softening point. Therefore, adjusting the weight ratio of attapulgite to organic lubricant in the lubricant to (4.5-5.5):(4.5-5.5) is more optimal.

[0087] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An ASA glass fiber composite material, characterized in that, It includes the following components by weight: 89.6-94.6 parts ASA resin, 5-10 parts glass fiber, 0.8-2 parts lubricant, and 0.04-0.08 parts plasticizer; The types and proportions of the raw materials in the lubricant are as follows: The weight ratio of attapulgite, ethylene bis-stearamide, silane coupling agent, and titanate coupling agent in the lubricant is: 4:0.6:0.02:0.03; or The weight ratio of attapulgite, ethylene bis-stearamide, and silane coupling agent in the lubricant is 0.45:0.55:0.05; or The weight ratio of attapulgite, ethylene bis-stearamide, and titanate coupling agent in the lubricant is 0.5:0.5:0.05; or The weight ratio of attapulgite clay, ethylene bis-stearamide, silane coupling agent, and titanate coupling agent in the lubricant is 0.55:0.45:0.02:0.03; or The weight ratio of attapulgite, ethylene bis-stearamide, silane coupling agent and titanate coupling agent in the lubricant is 0.6:0.4:0.02:0.

03.

2. The ASA glass fiber composite material according to claim 1, characterized in that, The plasticizer is one or a combination of PEG-200 and PEG-400.

3. A method for preparing the ASA glass fiber composite material according to claim 1, characterized in that, Includes the following steps: S1 Weigh all the raw materials according to the weight ratio; S2 Turn on the mixer, pour in the attapulgite clay and organic lubricant, keep stirring, add the coupling agent, continue stirring, and obtain the lubricant; S3 mixes ASA resin, lubricant and plasticizer, and adds them to glass fiber separately into an extruder for extrusion granulation to obtain ASA glass fiber composite masterbatch.

4. The method for preparing the ASA glass fiber composite material according to claim 3, characterized in that, In step S2, the mixer is turned on at a speed of 180-240 r / min, and the attapulgite clay and organic lubricant are poured in and kept stirring for 3-5 minutes.

5. The method for preparing the ASA glass fiber composite material according to claim 4, characterized in that, In step S2, after adding the coupling agent, the rotation speed is reduced to 120-150 r / min, and the stirring time is 8-10 min.

6. The application of the ASA glass fiber composite material as described in claim 1 in the field of automotive exterior parts.

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