| Type: | Water Retention |
|---|---|
| Transport Package: | Bag |
| Specification: | 25kg bag |
| Trademark: | XWT |
| Origin: | China |
| Samples: |
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| Customization: |
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Audited Supplier Hydroxypropyl methylcellulose(HPMC)
Hydroxypropyl methylcellulose also known as hypromellose, cellulose ether HPMC, is made of highly pure cotton cellulose as raw material, treated with alkaline solution at 35-40 ºC for 30 minutes, pressed to crush the cellulose At 35 ºC appropriate aging, so that the average degree of polymerization of the resulting alkali fiber is within the required range. Put the alkali fiber into the etherification kettle, etherify it at 50-80ºC for 5h, and the maximum pressure is about 1.8MPa. Then the material is washed in hot water at 90°C to expand the volume, then dewatered by a centrifuge, and then washed repeatedly until neutral.
Product Specification
| Appearance | White or off-white powder |
| Methoxy ( % ) | 19.0~ 24.0 |
| Hydroxypropoxy ( % ) | 4.0 ~ 12.0 |
| pH | 5.0~ 7.5 |
| Moisture ( % ) | ≤ 5.0 |
| Residue on ignition ( % ) | ≤ 5.0 |
| Gelling temperature ( ºC ) | 70~ 90 |
| Particle size | min.99% pass through 100 mesh |
| spec. | Viscosity Ranges(MPA.S) | spec. | Viscosity Ranges (MPA.S) |
| 5 | 4-9 | 8000 | 6000-9000 |
| 15 | 10-20 | 10000 | 9000-12000 |
| 25 | 20-30 | 15000 | 12000-18000 |
| 50 | 40-60 | 20000 | 18000-30000 |
| 100 | 80-120 | 40000 | 30000-50000 |
| 400 | 300-500 | 75000 | 50000-85000 |
| 800 | 600-900 | 100000 | 85000-130000 |
| 1500 | 1200-1800 | 150000 | 130000-180000 |
| 4000 | 3000-5600 | 200000 | ≥180000 |
HPMC instructions for use:
1. Dry powder mixing method: in the case of other powders, it should be thoroughly mixed with the powder first and then added with water, which will quickly dissolve without clumping.
2. Wet method of organic solvent: First disperse the product in organic solvent or moisten with organic solvent, then add to cold water or add cold water, it can be dissolved well.
3. Cold water instant method: Put proper amount of tap water in the container, gradually add HPMC under slow stirring, start to diffuse HPMC quickly into the water, but the diffusion does not dissolve, after standing for a few minutes, HPMC slowly dissolves and the viscosity slowly Come up and achieve the effect.
Precautions for preparing solution:
1. When adding HPMC and after adding, it should be fully stirred to achieve the ideal viscosity.
2. The dissolved concentration is determined according to the viscosity of the product. Low viscosity HPMC can be formulated into 10-15% concentration; high viscosity HPMC is formulated into 2-3%.
Packaging and Storage
Packing: plastic paper bag for external use, PVC plastic bag for internal use, net weight 20KG or 25KG per bag.
Storage: rain and sun protection, fire and moisture protection, closed ventilation.
Company Profile
Shijiazhuang Xinweite Building Materials Co., Ltd. is located in Hebei Province, China. The company mainly produces and sells cellulose ethers and latex powder products. It provides users with better varieties of products and a full range of free technical services at a faster speed. The road of common development is a win-win situation. The products are sold domestically to many provinces and cities in China, and exported to South Korea, Russia, and Arab countries and regions.We attach importance to product quality, establish and establish a strict management system, from raw material procurement, production and processing to finished product storage, check every level to ensure product quality.
The company keeps pace with the times and cooperates with all walks of life to create a better tomorrow.
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