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Cao Lưu Ngọc Hạnh, Nguyễn Thị Bích Thuyền, Lương Huỳnh Vủ Thanh(1), Đặng Huỳnh Giao, Phạm Trần Trúc Linh, Phạm Mai Hương

Nghiên cứu gia công khẩu trang kháng bức xạ cực tím từ sợi chuối

Study on fabrication process of ultraviolet-resistant mask from banana fibers

Khoa học (Đại học Cần Thơ)

2022

2

66-76

1859-2333

Khẩu trang, Sodium lignosulfonate, Sợi chuối, Thân thiện môi trường, Tia cực tím

Banana fiber, Eco-friendly, Mask, Sodium lignosulfonate, Ultraviolet

Nghiên cứu trình bày quy trình gia công khẩu trang thân thiện môi trường từ sợi chuối và đánh giá khả năng kháng bức xạ UV của khẩu trang thông qua khảo sát các yếu tố ảnh hưởng. Cấu trúc mặt cắt ngang và trên bề mặt của sợi chuối được quan sát thông qua kính hiển vi điện tử quét. Các yếu tố ảnh hưởng (gồm nhiệt độ ép, thời gian ép) để gia công khẩu trang đã được khảo sát. Để cải thiện khả năng kháng bức xạ UV của khẩu trang, một lượng muối lignin đã được bổ sung hoặc tăng bề dày tấm sợi. Khẩu trang từ sợi chuối đã được gia công thành công với khả năng sàng lọc bức xạ UV tối đa là 50,88% trong điều kiện gia công như: nhiệt độ ép tấm sợi là 130ºC, thời gian ép là 20 phút, thể tích muối lignin là 30 mL, bề dày tấm sợi là 3 mm. Hơn nữa, việc gia công thành công khẩu trang từ sợi chuối có khả năng kháng bức xạ UV đã tạo tiền đề cho những nghiên cứu tiếp theo về khẩu trang thân thiện môi trường.

The study presents the fabrication process of eco-friendly masks from banana fibers and evaluates the UV-resistance of the masks through investigating the influencing factors. The cross-sectional and surface structures of banana fibers were observed through scanning electron microscopy. The influencing factors (including pressing temperature, pressing time) for mask processing were investigated. To improve the UVresistance of the mask, a lignin salt was added or increased the fiber mat thickness. Banana-fiber masks have been processed successfully with a maximum UV-resistant capacity of 50.88% in processing conditions such as mat sheet pressing temperature 130ºC, pressing time 20 minutes, volume of lignin salt 30 mL, thickness of the mat sheet 3 mm. Moreover, the successful processing of masks from banana fibers that are resistant to UV radiation is a premise for further studies on eco-friendly masks.

TTKHCNQG, CVv 403

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