相关实验视频

Updated: Sep 18, 2025

Standard Test Method ASTM D 7998-19 for the Cohesive Strength Development of Wood Adhesives
08:40

Standard Test Method ASTM D 7998-19 for the Cohesive Strength Development of Wood Adhesives

Published on: May 17, 2020

3.1K

用于热固化木材粘合剂的调聚醇:"A1"类非异酸聚氨来自凝结宁的聚氨

Gopakumar Sivasankarapillai1,2, Arsène Bikoro Bi Athomo1,2, Detlef Schmiedl3

  • 1Freiburg Materials Research Centre, University of Freiburg, Stefan-Meier-Strasse 21, D-79104 Freiburg i. Br., Germany.

Journal of agricultural and food chemistry
|June 27, 2025
PubMed
概括

研究人员从Quebracho凝结素 (CT) 开发出环保的木材粘合剂. 这些非异酸聚氨 (NIPU) 符合欧洲标准的干粘强度,为传统粘合剂提供可持续的替代品.

关键词:
粘合剂类别是一种粘合剂类别.凝结 tannins 凝结 tannins 凝结 凝结 凝结 凝结衍生化的衍生化非异酸聚氨非异酸聚凝聚是一种多重凝聚方式.剪切键的强度 剪切键的强度

更多相关视频

Preparation and Testing of Plant Seed Meal-based Wood Adhesives08:09

Preparation and Testing of Plant Seed Meal-based Wood Adhesives

Published on: March 5, 2015

8.9K
Quantitative 31P NMR Analysis of Lignins and Tannins05:57

Quantitative 31P NMR Analysis of Lignins and Tannins

Published on: August 2, 2021

13.2K

相关概念视频

Wood Products01:21

Wood Products

Wood products encompass a broad range of materials crafted from wood strands, veneers, lumber, and even waste wood-like shreds, designed for both structural and nonstructural purposes. Various specialized wood products have been developed to enhance strength, durability, and versatility in building applications.
Glue-laminated wood, often referred to as glulam, combines multiple smaller pieces of dimensional lumber using adhesives to form a single, larger piece. Cross-laminated timber consists...
134
Types of Step-Growth Polymers: Polyesters01:20

Types of Step-Growth Polymers: Polyesters

The introduction of polyesters has brought major development to the textile industry. The wrinkle-free behavior of polyester blends has eliminated the need for starching and ironing clothes.
Polyesters are commonly prepared from terephthalic acid and ethylene glycol; the crude product is known as poly(ethylene terephthalate) or PET. However, polyesters are synthesized industrially by transesterification of dimethyl terephthalate with ethylene glycol at 150 °C. The two reactants and the...
2.3K
Seasoning of Wood01:15

Seasoning of Wood

Seasoning of wood is a crucial process aimed at reducing and stabilizing the moisture content within the wood to prevent future shrinkage, structural damage, or aesthetic issues once the wood is used in construction. Wood naturally swells when it absorbs moisture and contracts as it dries.
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
183
Polymer Classification: Architecture01:14

Polymer Classification: Architecture

Polymers are classified as linear or branched on the basis of their chain architecture. The polymer chains in linear polymers have a long chain-like structure with minimal to no branching at all. Even if a polymer features large substituent groups on the monomer, which appear as branches to the skeleton, it is not considered a branched polymer. A branched polymer contains secondary polymer chains that arise from the main polymer chain. The branching occurs when the polymer growth shifts from...
3.0K
Polymer Classification: Stereospecificity01:26

Polymer Classification: Stereospecificity

Polymerization generates chiral centers along the entire backbone of a polymer chain. Accordingly, the stereochemistry of the substituent group has a significant effect on polymer properties. Polymers formed from monosubstituted alkene monomers feature chiral carbons at every alternate position in the polymer backbone. Relative to the predominant orientation of substituents at the adjacent chiral carbons, the polymer can exist in three different configurations: isotactic, syndiotactic, and...
2.7K