搜索结果: 76-90 共查到“林业工程”相关记录5252条 . 查询时间(0.962 秒)
NANOSTRUCTURED EPDXY-BASED ANTICORROSIVE COATINGS
Corrosion functionalized epoxy resin nanoparticles polarization resistance
2024/1/10
A functionalized epoxy resin (DGEBA) was synthesized from abietic acid, through the esterification and condensation reactions between the carboxyl groups of abietic acid and the basic functional group...
Hydrophobic Formulations Based on Tall Oil Distillation Products for High-Density Fiberboards
tall oil bio-refinery water repellents cellulosic fibers dynamic water vapor sorption
2024/1/10
This study investigates the effect of renewable formulations based on tall oil bio-refinery products on the water vapor sorption and interfiber strength of cellulosic fibers as well as on the properti...
Thermal Stability of Abietic Acid and Its Oxidation Products
Abietic Acid Thermal Stability Its Oxidation Products
2024/1/10
The thermal oxidation characteristics of abietic acid were investigated through tracing the oxidation process in custom-designed mini closed pressure vessel test under isothermal and step temperature ...
广西生态工程职业技术学院林业工程学院
广西生态工程职业技术学院 林业工程学院 林业技术
2023/12/21
林业工程学院已具有60多年的办学历史。长期以来，坚持走产学研紧密结合、校行企深度合作的办学之路，致力于专业建设、教学改革和科学研究，取得了丰硕的教科研成果。目前，拥有国家林业局重点专业1个、广西高校优质专业、特色专业1个；广西区级精品课程2门、国家林草局精品课程1门、学校精品课程5门；广西区优秀教学团队2支、学校优秀教学团队3支；中央财政支持建设的职业教育实训基地1个；自治区示范性高等职业教育实训...
广西生态工程职业技术学院
广西 生态工程 职业技术学院 林业工程
2023/12/21
广西生态工程职业技术学院是广西壮族自治区人民政府举办，自治区林业局、自治区教育厅管理的全日制普通高等学校，学校是首批国家高技能人才培养示范基地、广西高水平学校和专业建设单位、自治区示范性高等职业院校、国家技能人才培养突出贡献奖、全国林草科普基地、全国生态文明教育特色学校、自治区特色高校、中国（南方）现代林业职业教育集团理事长单位（国家职教示范集团）、自治区文明校园、广西珍贵乡土树种良种培育中心、广...
High-performance gum rosin-modified hyperbranched vinyl ester resin derived from multifunctional pentaerythritol
Rosin Vinyl ester Thermal stability Chemical resistance Bio-based
2023/12/21
In this article, gum rosin-based hyperbranched vinyl ester resin (VPEMPAE) was synthesized from maleic anhydride-modified gum rosin adduct (MPA). This adduct (MPA) was reacted with pentaerythritol to ...
Abietic acid encapsulated Sn-57Bi alloy nanoparticles as oxidation resistant solder material
Sn-57Bi alloy nanoparticles abietic acid encapsulation metal oxide reduction
2023/12/21
Low-melting point solder Sn-57Bi alloy nanoparticles were synthesized and encapsulated with abietic acid (aa) thin layer to form a core-shell structure. Formation of nanoparticle enhances its mechanic...
Production, Properties, and Applications of α-Terpineol
Aroma Bioactivity Bioflavor Fragrance Terpene
2023/12/21
α-Terpineol (CAS No. 98-55-5) is a tertiary monoterpenoid alcohol widely and commonly used in the flavors and fragrances industry for its sensory properties. It is present in different natural sources...
Stability of lignocellulosic papers strengthened and deacidified with aminoalkylalkoxysilanes
trengthening Lignin Newsprint paper Alum-rosin Mechanical properties Acidity
2023/12/21
The durability of paper documents treated with aminoalkylalkoxysilane copolymer (co-AAAS) flexible networks, as deacidifying and strengthenening agents, was studied. To this end, a 1922 lignocellulosi...
Low-formaldehyde?emission composite particleboard manufactured from waste chestnut bur
Chestnut bur Composite particleboard Formaldehyde Polyphenol
2023/12/21
Chestnut bur is an agro-waste material generated in the chestnut production. It is a tannin-rich lignocellulosic material which might be a promising raw material for low-formaldehyde?composite particl...
仲恺农业工程学院专利：一种富贵竹剥叶切段筛选多功能一体机
仲恺农业工程学院 富贵竹 剥叶切段筛选 多功能一体机
2023/12/19
本发明公开了一种富贵竹剥叶切段筛选多功能一体机，包括传送部，所述传送部的送出端处设有剥叶部，剥叶部的送出端设有剪断部，剪断部的下方设有筛选部，富贵竹从所述传送部的送入端进入传送部，传送部推动富贵竹移动，使其依次经过剥叶部、剪断部进行剥叶和剪断，筛选部接收富贵竹段并对其进行筛分。具有传送部、剥叶部、剪断部、筛选部，能够对富贵竹依次进行剥叶、剪断、筛选，实现了对富贵竹的全自动加工，大大提高了加工效率。...
本发明提供了一种木质素基天然防晒复合物的制备方法，具体包括以下步骤：首先采用水玻璃作为硅源以钛酸四丁酯作为钛源采用原位修饰的方法制备获得氨基修饰的复合二氧化硅/二氧化钛溶胶；其次，将氨基修饰的复合二氧化硅/二氧化钛溶胶与木质素反应制备获得二氧化硅/二氧化钛/木质素防晒复合物；二氧化硅、二氧化钛、木质素三者复配，成分相互叠加，共同发挥效能，使防晒范围更广，更有效地阻隔全波段的紫外线，达到良好的防晒效...
仲恺农业工程学院专利：一种活塞泵式树木涂白机
仲恺农业工程学院 活塞泵式 树木涂白机
2023/12/19
本发明涉及树木涂白技术领域，公开了一种活塞泵式树木涂白机，包括：储液箱，用于储存涂白液体；活塞泵，包括泵筒和活塞杆，泵筒安装于储液箱内，活塞杆的底部安装在泵筒内，顶部向上延伸至储液箱的外部，顶部传动连接有驱动机构；泵筒的出液口连接有输液管，输液管穿过储液箱的箱壁延伸至储液箱的外部；空气室，设置于储液箱外，空气室与输液管连接；喷涂组件，与输液管连接，用于喷出空气室内的涂白液体；驱动机构驱动活塞杆上下...
Upgrading catalytic activity of NiO/CaO/MgO from natural limestone as catalysts for transesterification of coconut oil to biodiesel
Biodiesel Limestone Methyl ester PEG Vegetable oil
2023/12/19
Limestone was converted to high surface area CaO/MgO catalysts via calcination-hydration-dehydration (CHD) method for transesterification of coconut oil to biodiesel. Thermal?decomposition?at 900 degr...
Renewable UV-curable?polyester?methacrylate/cellulose nanocrystals composite?resin?for wood waterproof coating
UV-curable cellulose nanocrystals low viscosity composite star-shaped bio-based
2023/12/19
Low-viscosity UV-curable?resins?are widely used in industry as they allow for UV curing materials with reduced amounts of reactive diluents to adjust the viscosity. But their?mechanical properties?and...