The temperature change has a significant impact on the viscosity stability of cellulose ethers (such as hydroxyethyl cellulose, methyl cellulose, carboxymethyl cellulose, etc.) in building materials (such as cement mortar, putty, coatings, etc.), and its core mechanism is related to the molecular chain motion state, hydrogen bonding, and system compatibility. The following provides a detailed analysis from the perspectives of temperature increase and decrease:

Cellulose and its derivatives (such as hydroxyethyl cellulose, carboxymethyl cellulose, etc.) are important oilfield chemical additives in oil extraction, mainly by improving the performance of drilling fluids, fracturing fluids, and oil displacement agents, indirectly or directly increasing oil recovery rates. Its function and mechanism are as follows:

In the field of pharmaceutical excipients, cellulose based nanomaterials (such as nanocellulose, cellulose nanocrystals, cellulose nanofibers and their derivatives) have excellent biocompatibility, strong degradability, and wide sources

In personal cleaning products such as shampoo and shower gel, cellulose (usually cellulose derivatives, such as hydroxyethyl cellulose, hydroxypropyl methyl cellulose, etc.), as an important additive, achieves the effect of thickening and stabilizing foam through unique molecular structure and physical and chemical properties. The specific mechanism is as follows:

In the preparation process of honeycomb ceramics, cellulose (usually natural cellulose fibers such as wood pulp fibers, cotton fibers, or cellulose derivatives such as methyl cellulose) is a key organic additive,

In wallpaper production, cellulose (especially natural cellulose such as wood pulp, cotton pulp, and cellulose derivatives such as methyl cellulose MC, hydroxypropyl methyl cellulose HPMC, etc.) is the core raw material or functional additive,

In washing and daily chemical products, cellulose (mainly cellulose ether derivatives such as carboxymethyl cellulose sodium CMC, hydroxyethyl cellulose HEC, methyl cellulose MC, etc.)

The role of cellulose (usually added as a molding aid and pore forming agent) in the drying process of honeycomb ceramics is closely related to the risk of drying cracking.

Cellulose (especially modified cellulose ethers such as hydroxypropyl methyl cellulose HPMC) is not directly used as the core material for thermal insulation in building materials,

Cellulose (especially modified cellulose ethers such as HPMC, MC, etc.) has targeted requirements for construction technology in building materials construction by regulating the water retention, rheological properties, and opening time of materials, in order to fully utilize its performance advantages and avoid defects. The specific special requirements are as follows: