氢化松香改性乙烯基聚硅氧烷的合成及性能研究

doi:10.3969/j.issn.0253-2417.2015.06.014

Abstract

Abstract: Hydrogenated rosin (HR) modified vinyl polysiloxane (HR-VMS) was firstly synthesized from HR, hexamethyldisiloxane (MM), 1, 3, 5, 7-tetravinyl-1, 3, 5, 7-tetramethylcyclotetrasiloxane (D₄Vi), octamethyl cyclotetrasiloxane (D₄) and hydrolyzate of γ-aminopropyl(diethoxy)methylsilane (HAPMS).The novel resin (HR-VMS) was further characterized by ¹H NMR, ¹³C NMR and FT-IR.The curing behavior of HR-VMS with 2, 5-bis(tert-butylperoxy)-2, 5-dimethylhexane(DBPH) as the curing agent was studied by differential scanning calorimetry (DSC).The low-temperature resistance and high-temperature thermal stability of the curing product were studied by DSC and TG, respectively.The results showed that at the heating rate of 10℃/min, the peak-top temperature of exothermic peak for HR-VMS was 186.9 ℃ with the exothermic value of 100.3 J/g.The curing product from HR-VMS showed better high-temperature thermal stability compared with VMS, and the temperature corresponding to its maximum weight loss rate was 436.1℃ which was 68℃ higher than that of common vinyl polysiloxane resin.

Key words: hydrogenated rosin, modification, poly(dimethylsiloxane), peroxide, sulfurization

CLC Number:

TQ351

XU Tao, LIU He, SHANG Shi-bin, SONG Zhan-qian, YANG Chong. Synthesis and Properties of Hydrogenated Rosin Modified Vinyl Polysiloxane[J]. Chemistry and Industry of Forest Products, 2015, 35(6): 83-88.

References

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Synthesis and Properties of Hydrogenated Rosin Modified Vinyl Polysiloxane

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