Glass fiber reinforced polyphenylene sulfide composition as well as preparation method and application thereof
A technology of polyphenylene sulfide and polyphenylene sulfide resin, which is applied in the field of glass fiber reinforced polyphenylene sulfide composition and its preparation, can solve the problems of sample surface roughness, high total filling amount, and decreased impact strength, and achieve Good mechanical properties, high heat resistance, and small performance change rate
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Embodiment 1-10
[0037] The invention provides a glass fiber reinforced polyphenylene sulfide composition, the formula of which is shown in Table 1 in parts by weight.
[0038] The preparation method is as follows:
[0039] First, the polyphenylene sulfide resin, silane coupling agent, toughening agent, and antioxidant are dispersed through a high-speed mixer according to the formula ratio, and then the mixture is passed through a twin-screw extruder, and at the same time, it is fed to the side of the twin-screw extruder. The material glass fiber is extruded and granulated; the extrusion process is: speed 350rpm, feeding 450kg / h; extrusion temperature: zone 1: 200°C, zone 2-8 280°C, zone 9-12 : 260°C, machine head: 260°C.
[0040] The glass fiber reinforced polyphenylene sulfide composition formulation (parts by weight) of Examples 1-10 is shown in Table 1:
[0041] Table 1
[0042]
[0043]
[0044] Note: "-" in the table means that the component is not added.
Embodiment 1
[0067] Melt index (310°C / 5kg) of cross-linked polyphenylene sulfide in Example 1: 450g / 10min, viscosity increasing index 2.0, melt index (310°C / 5kg) of cross-linked polyphenylene sulfide in Example 2 : 150g / 10min, the viscosity increasing index is 1.6, the melt index (310 ℃ / 5kg) of cross-linked polyphenylene sulfide in embodiment 8: 150g / 10min, the viscosity increasing index is 5, the cross-linked polyphenylene sulfide in embodiment 9 Melt index of phenylene sulfide (310°C / 5kg): 100g / 10min, viscosity increasing index is 1.1, melting index of cross-linked polyphenylene sulfide in Example 10 (310°C / 5kg): 250g / 10min, viscosity increasing The index is 6. Comparing Examples 1, 2, and 8 with Examples 9 and 10, it can be seen that when the melt index of the cross-linked polyphenylene sulfide resin is 100-1000g / 10min and the viscosity index is 1.5-5, lower high and low temperature can be achieved. The rate of change of properties exceeds this range, and the rate of change of high and...
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