3. Loss of Accessories Functionality If the alternator, power steering, or air conditioning systems start to malfunction, it can often be traced back to a faulty V-belt.
- Hydroxypropyl methylcellulose (HPMC), a semi-synthetic polymer derived from cellulose, is a widely employed substance across various industries due to its unique properties and versatility. It is created through the chemical modification of cellulose, a natural polymer found in plant cell walls, by introducing hydroxypropyl and methyl groups. This process enhances its solubility in water, making it suitable for use in both aqueous and non-aqueous systems.
Carbonization temperature: 280-300 ℃

In the rabbit hindgut, fermentation occurs through a wide prevalence of Bacteroides that do not allow an extended digestibility of fibre. Digestibility of cellulose was shown to amount to 16% of the administered dose, whereas values of 14% and 18% were reported for fibre (cellulose being the main component) (review from the NRC, 1977). Later studies reported values comprised between 15 and 25% in rabbits administered different plant sources of cellulose (Gidenne and Perez, 1996; Chiou et al., 1998). In the horse, digestion of plant structural carbohydrates (including cellulose) occurs in the hindgut (colon and overall caecum). The microbiota of the caecum comprises bacteria similar to those of the rumen, but specific protozoa. The resulting digestibility is about two-third that measured in ruminants.


Wie gefährlich ist HPMC?
Solubility: Soluble in water and some solvents, such as the appropriate proportion of ethanol/water, propanol/water, etc. The aqueous solution has surface activity. With high transparency and stable performance, the gel temperature of different specifications is different, the solubility changes with viscosity, the viscosity is lower and the solubility is greater. The performance of HPMC with different specifications has a certain difference. The dissolution of HPMC in water is not affected by the PH value.
HPMC imparts viscosity to construction materials, ensuring they remain workable and easy to apply. The thickening property also helps prevent sedimentation and provides a homogeneous mixture.
3. Construction industry:
A study published in the Journal of Applied Toxicology evaluated the acute oral toxicity of HPMC in rats and found no side effects at doses up to 5000 mg/kg body weight (the highest dose tested). In addition, subchronic and chronic toxicity studies show no significant side effects in animals, even at high doses.
