Ảnh hưởng của hỗn hợp dung dịch keo nhựa thông - đồng sunphat đến chất lượng bề mặt và độ bám dính màng sơn trên bề mặt gỗ Bồ đề

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Tác giả: Thị Thanh Hiền Nguyễn

Ngôn ngữ: Vie

Ký hiệu phân loại: 674 Lumber processing, wood products, cork

Thông tin xuất bản: Nông nghiệp và Phát triển nông thôn, 2022

Mô tả vật lý: 51 - 57

Bộ sưu tập: Metadata

ID: 415896

Thêm vào giỏ Liên kết toàn văn

Nhựa thông là một sản phẩm có đặc tính kỵ nước rất tốt và thân thiện với con người. Trong nghiên cứu này, gỗ Bồ đề (Styrax tonkinensis Pierre) trước khi sơn phủ polyurethane (PU), đã được xử lý ngâm tẩm bởi hỗn hợp của 1%, 2% và 4% dung dịch keo nhựa thông với 3% đồng sunphat, đồng thời ảnh hưởng của việc xử lý bởi keo nhựa thông dính của màng sơn kết hợp keo nhựa thông - đồng sunphat để xử lý ngâm tẩm cho gỗ Bồ đề không ảnh hưởng đến khả năng thẩm thấu của hợp thông - đồng sunphat của màng són trên bề mặt gỗ đã ngâm tẩm. Hon nữa, gỗ sau khi được xử lý bảo quản bởi hỗn hợp keo nhựa thông - đồng sunphat có thể cải thiện độ bám dính của màng sơn trên bề mặt gỗ. Khi nồng độ dung dịch - đồng sunphat đến một số đặc tính bề mặt như độ biến màu, độ bóng bề mặt và độ bám trên bề mặt gỗ đã xử lý cũng được nghiên cứu. Kết quả nghiên cứu cho thấy Sử dụng chất bảo quản vào trong gỗ. Tuy nhiên, bề mặt của gỗ được xử lý bởi hỗn hợp keo nhựa at đã trở nên hoi sẫm màu hơn, nhưng không tác động tiêu cực đến màu sắc và độ bóng keo nhựa thông tăng lên thì độ bám dính của màng sơn có xu hướng giảm nhẹ nhưng không ảnh hưởng rõ ràng đến độ biến màu cũng như độ bóng của màng sơn trên bề mặt gỗ., Tóm tắt tiếng anh, Rosin is a natural product, it has a good hydrophobic character, and is human-friendly. In this study, Styrax tonkinensis (Pierre) wood was impregnated to the mixtures of 1%, 2%, 4% rosin sizing agent and 3% copper sufrate before being coated by Polyurethane (PU), while the effects ofrosin sizing - copper sulfate treatment on some surface characteristics such as changes in color, glossiness, and adhesion of coating film on the treated wood surface were also studied. The results showed that combinations of rosin sizing agent and copper sulfate to impregnate for styrax wood did not influence the penetration of the preservative complexes into the wood. However, the surface of wood treated with rosin sizing - copper sulfate has become slightly darker but it has no negative effect on the color and gloss of coating film on the treated wood surface. Moreover, wood after being preserved by rosin sizing - copper sulfate solutions could improve the adhesion of coating film on the surface of treated wood. When the concentration of rosin increases the adhesion tends to slight decrease, however, it does not affect the changes in color and gloss of the coating film.

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