2021 Good Quality Hospital Ceiling - Hydroxypropyl Methylcellulose HPMC – Beihua
2021 Good Quality Hospital Ceiling - Hydroxypropyl Methylcellulose HPMC – Beihua Detail:
In building materials, it is used as a water-retaining agent and retarder for cement sludge with pumpability. It can be used as a binder in plaster, gypsum, inverted powder or other building materials to improve spreadability and prolong operation time. It can be used as an agent for sticking bricks, tiles, marbles, plastic decorations, and bonding intensifiers. It can also reduce the amount of cement. The water retention of HPMC prevents the slurry from cracking due to drying too fast after coating, and enhances the strength after hardening.
In addition, it is used as thickener, stability, emulsifier, excipient, water retention in the production of other petrochemicals, coatings, building materials, paint removers, agricultural chemicals, inks, textile printing and dyeing, ceramics, papermaking, and cosmetic brands. Agent, film-forming agent, etc.
1. Appearance: white or almost white powder, odorless and tasteless.
2. Granularity: 10 mesh pass rate is greater than 98.5%; 80 mesh pass rate is greater than 100%.
3. Carbonization temperature: 280-300℃.
4. Room density: 0.25-0.7G/CM3 (usually about 0.5G/CM3), the specific gravity is 1.26-1.31.
5. Discoloration temperature: 190-200℃.
6. Natural temperature: about 360℃.
Production Method
The refined cotton cellulose is treated with lye at 35-40°C for half an hour, squeezed, the cellulose is crushed, and properly aged at 35°C, so that the obtained alkali fiber average degree of polymerization is within the required range. Put the alkali fiber into the etherification kettle, add propylene oxide and methyl chloride successively, and etherify at 50-80℃ for 5h, the maximum pressure is about 1.8MPa. Then add proper amount of hydrochloric acid and oxalic acid to wash materials in hot water at 90°C to increase the volume. Dehydrate with a centrifuge. Wash to neutral. When the water content in the material is less than 60%, dry it with a stream of hot air at 130℃ to less than 5%. Finally, it is crushed through a 20-mesh sieve to obtain the finished product.
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We always do the job to be a tangible group making sure that we can provide you with the top top quality as well as ideal value for 2021 Good Quality Hospital Ceiling - Hydroxypropyl Methylcellulose HPMC – Beihua , The product will supply to all over the world, such as: Sri Lanka, Singapore, Turkey, We are introduced as a one of the growing manufacture supplier and export of our products. We have a team of dedicated trained professional who take care the quality and timely supply. If you are looking for Good Quality at a good price and timely delivery. Do contact us.
By Marcy Real from Serbia - 2018.12.05 13:53
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
By Moira from Liberia - 2018.09.19 18:37