Biobased silicon-containing alternating EP rubber and preparation method thereof
An ethylene-propylene rubber, bio-based technology, applied in transportation and packaging, special tires, tire parts, etc., can solve problems such as inability to exert rubber properties, achieve excellent interfacial compatibility, increase tensile strength and elastic modulus , High wet skid resistance effect
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Embodiment 1
[0041] Take the above steps, control the amount of triethylsilane to be 40% of Eucommia gum, the Wilkinson catalyst consumption is 5% of Eucommia gum, the reaction temperature is 100°C, the reaction time is 8 hours, the degree of hydrosilation of the Eucommia gum obtained by the reaction was 57.33%.
[0042] Implementation column 2-5
[0043] Compared with Example 1, the difference is that the amount of the Wilkinson catalyst is 0.5%, 3%, 7%, and 9% of the dry gum mass of Eucommia gum, respectively. The hydrosilation degree of obtained Eucommia gum is as shown in table 1:
[0044] Table 1
[0045] Catalyst concentration (%) Hydrosilation degree (%) Example 2 0.5 35.73 Example 3 3 50.20 Example 4 7 50.72 Example 5 9 43.28
Embodiment 6~9
[0047] Compared with Example 1, the difference is that the addition of triethylsilane is respectively 5%, 15%, 60%, and 80% of the dry gum quality of Eucommia gum. The degree of hydrosilation of the obtained eucommia gum is shown in Table 2.
[0048] Table 2
[0049] Triethylsilane dosage (%) Hydrosilation degree (%) Example 6 5% 28.97 Example 7 15% 43.14 Example 8 60% 32.33 Example 9 80% 30.25
Embodiment 10~13
[0051] Compared with Example 1, the difference is that the reaction temperatures are respectively 40°C, 60°C, 80°C, 100°C, and 120°C. The degree of hydrosilation of the obtained eucommia gum is shown in Table 3.
[0052] table 3
[0053] Reaction temperature (°C) Hydrosilation degree (%) Example 10 40 16.25 Example 11 60 17.12 Example 12 80 27.28 Example 13 110 45.16
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