Hydroxypropyl Methyl Cellulose Ether (HPMC), is a natural multifunctional carbohydrate polymer, white or similar to white fiber or granular powder. It has two components: hydroxypropyl group and methoxy subgrade group. Each of annulus fibrosis are three hydroxyls.
Application
It can be used as dispersing agent or stabilizer for suspension polymerization in PVC, which can improve key factors of suspension polymers like average particle size, particle size distribution, particle form and inner structure. It is a main auxiliary for preparation of PVC by suspension polymerization. It’s also wideld used as thickener, adhesive, water preserving agent, film-forming agent in construction, building materials, dispersion coating, wallpaper paste, polymerization aids, leathers, printing ink and paper making etc. also used in petroleum drilling and daily-use chemicals.
Grade & Specification
| Items | HPMC Series – Parameter | |||||||
| HPMC 304 | HPMC 307 | HPMC 310 | HPMC 320 | |||||
| Â Viscosity (mPa.s) | 32000~48000 | 56000~84000 | 80000~120000 | 160000~220000 | ||||
|  Gel temperature/℃ | 65~80 | 65~80 | 65~80 | 65~80 | ||||
|  Moisture content/% | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 | ||||
|  Bulk density/(kg/m³) | 400±100 | 400±100 | 400±100 | 400±100 | ||||
| Â PH value(2% aqueous solution) | 6~8 | 6~8 | 6~8 | 6~8 | ||||
|  Fineness (150umsieve)/% | ≤ 10.0 | ≤ 10.0 | ≤ 10.0 | ≤ 10.0 | ||||
Instructions
Add hydroxypropyl methyl cellulose ether to the powder, mix well and then use. According to performance requirements and application effects, the recommended dosage is 0.03~0.5% of the total weight of the dry mix.
Packing
Product is packed in fiber can lined with polyethylene film or woven bags, 25kg/bag.
Storage
It should be kept away from exposure to the sun, rain and moisture in storage and transportation.
Transportation
During transportation, the products shall be moved gently to prevent damaging the packing bags. Avoid direct contact with Naked flame, when fire happens, any fire fighting equipment may be use to extinguish the fire.
Shelf Life
1 year, exceeding valid period, if the products have not lumped and can still be used.