What is carbodiimide?
Carbodiimide, contains N=C=N functional groups, and is a commonly used dehydrating agent. It is generally prepared by thiourea losing hydrogen sulfide or urea losing water, and hydrolyzed to obtain urea derivatives. Mainly used to activate carboxyl groups to promote the formation of amides and esters. Basic Information of carbodiimide English name: Carbodiimide Alias: 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride […]
What are biological degradable polymer materials?
Concept and degradation mechanism of biological degradable polymer materials The biodegradable polymer material refers to a polymer material that degrades under the action of the microbes or their secretions under certain times and certain conditions. The mechanism of biodegradability roughly the following three ways: It is generally believed that biodegradable polymer materials are carried out through […]
How to extend the degradation cycle of polylactic acid (PLA) 3D printing materials
3D printing is also known as additive manufacturing. Compared with the large-scale production of traditional manufacturing, 3D printing meets the needs of many customized products. Although the cost of the product is higher, the marginal benefit also increases. 3D printing materials are an important material foundation and key material for the development of 3D printing […]
How to improve the service life of polylactic acid (PLA)
Polylatic acid, or PLA, is also referred to as polypropylene. PLA is a thermoplastic polymer obtained by polymerizing lactic acid as a main raw material. It has good biocompatibility, which can be completely degraded by natural microorganisms, and is an ideal green molecular material. Polylactic acid molecular structure PLA is a polymer material having good biocompatibility, high biological decomposition […]
How to effectively alleviate the hydrolysis of polyester materials?
Advantages of polyester material Ester-based polymer materials are formed by polycondensation of alcohols and carboxylic acids, and most of them are polycondensation of polyols and polyacids, such as PET, PBT, PU, PLA, PBAT, PC, etc. These polyester materials have many excellent physical and chemical properties performance, so it is widely used in production and life. […]
What is an ester-based polymer material?
Polymer materials are classified into natural, semi-synthetic (modified natural polymer materials) and synthetic polymer materials according to their sources. Polymer materials are divided into rubber, fiber, plastics, polymer adhesives, polymer coatings and polymer-based composite materials according to their characteristics. Classified by polymer backbone structure ①Carbon chain polymer: the main chain of the molecule is composed […]
What’s hydrolysis stabilizer and its advantage?
What is hydrolysis stabilizer? Moisture affects various properties of polymers. From the point of view of raw materials, silica gel, modified silica gel, or isocyanate will react with water quickly, so it is necessary to add moisture scavenger during storage to maintain the stability of the raw materials. For hardened and molded polymers, moisture may […]
What is hydrolysis?
