Grease-resistant high-impact polyphenylene oxide (PPO) composite material and preparation method thereof
A composite material and high-impact technology, which is applied in the field of grease-resistant and high-impact PPO composite materials and its preparation, can solve the problems of not achieving high impact resistance, not researching oil-resistant stress cracking, etc., to ensure physical properties and stable production properties, improved oil and grease resistance, and excellent chemical resistance
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Publication Date
- 2019-04-12
- Estimated Expiration
- Not applicable · inactive patent
Smart Images
Figure 1 
Figure 2 
Figure 3
Abstract
Description
technical field
[0001] The invention relates to the field of polymer materials, in particular to a grease-resistant high-impact PPO composite material and a preparation method thereof. Background technique
[0002] Polyphenylene ether (PPO) resin has the advantages of good mechanical properties, chemical stability and heat resistance. The products can be used continuously in high temperature or high humidity environment while maintaining good dimensional stability and mechanical strength. Applications in mechanical and electrical fields are becoming more and more extensive. However, PPO also has certain deficiencies. The most prominent disadvantages are its high melt viscosity and poor formability. Under the stress of injection molded products, mineral oil, ketones, and ester solvents will cause stress cracking, which is extremely difficult. This greatly limits the application of the material in other fields.
[0003] Chinese patent 201310102133.5 discloses a PPO / PA alloy ...
Examples
Embodiment 1
[0035] According to the raw materials in parts by weight shown in Table 1, the PPO composite material was prepared.
[0036] The formula composition of table 1 embodiment 1
[0037]
[0038]
[0039] Among them, the copper element concentration in the PPO resin is 12ppm, and the intrinsic viscosity is 52cm 3 / g.
[0040] The melt index of PA12 resin at 230°C / 2.16Kg is 12g / 10min.
[0041] The preparation method of the present embodiment PPO composite material comprises the following steps:
[0042] 1) Mix AS resin, maleic anhydride and SEBS evenly, feed them into the single-screw extruder from the main feed, then feed calcium sulfate whiskers and PTFE into the extruder from two side feed systems respectively , melt blending extrusion granulation to obtain masterbatch;
[0043] 2) PPO resin is fed into the twin-screw extruder from the main feeding port, and PA12 resin and the above-mentioned masterbatch are fed into the extruder from two side feeding systems respective...
Embodiment 2
[0045] According to the raw materials in parts by weight shown in Table 2, the PPO composite material was prepared.
[0046] The formula composition of table 2 embodiment 2
[0047] raw material
Parts by weight (parts)
PPO resin
50
PA12 resin
30
AS resin
2
PTFE
4
2
Compatibilizer
12
[0048] Among them, the concentration of copper element in PPO resin is 8ppm, and the intrinsic viscosity is 52cm 3 / g.
[0049] PA12 resin is identical with embodiment 1.
[0050] The preparation method of the PPO composite material in this example is the same as that in Example 1.
Embodiment 3
[0052] According to the raw materials in parts by weight shown in Table 3, the PPO composite material was prepared.
[0053] The formula composition of table 3 embodiment 3
[0054] raw material
Parts by weight (parts)
PPO resin
45
PA12 resin
35
AS resin
2
PTFE
4
calcium sulfate whiskers
2
Compatibilizer
12
[0055] Wherein, PPO resin and PA12 resin are identical with embodiment 2.
[0056] The preparation method of the PPO composite material in this example is the same as that in Example 2.