Cải thiện tính chất của poymer composite trên cơ sở epoxy K153A và poly(propylene glycol) diglycidyl ether bằng graphene oxide
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https://doi.org/10.54939/1859-1043.j.mst.113.2026.88-95Từ khóa:
Vật liệu composite polymer; Nhựa epoxy K-153A; Poly(propylene glycol) diglycidyl ether; Tính chất cơ học; Khả năng chống oxy hóa nhiệt.Tóm tắt
Bài báo này giới thiệu ảnh hưởng của hàm lượng oxit graphene (GO) đến một số tính chất của vật liệu polymer composite dựa trên hỗn hợp nhựa epoxy K-153A và poly(propylene glycol) diglycidyl ether, hỗn hợp này được đóng rắn bằng polyetylen polyamine (PEPA). Nhựa epoxy K-153A là sản phẩm của nhựa epoxy ED-20 được biến tính bằng oligomer acrylate mã hiệu MGF-9 và thiokol. Độ bền kéo của vật liệu polymer composite với 1,5% khối lượng GO là 86,65 MPa và độ bền uốn của vật liệu composite polymer là 105,56 MPa, các giá trị này cao hơn nhiều so với hỗn hợp K-153A/poly(propylene glycol) diglycidyl ether có độ bền uốn lần lượt là 68,42 MPa và 79,56 MPa. Khả năng chống oxy hóa nhiệt của vật liệu polymer composite cũng tăng lên so với hỗn hợp nhựa epoxy K-153A/poly(propylene glycol) diglycidyl ether.
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