Welcome To b2b168.com, Join Free | Sign In
中文(简体) |
中文(繁體) |
Francés |Español |Deutsch |
| No.13531059
- Product Categories
- Friendly Links
The difference between the sponge and foam
2014-08-21 Reads : 297
The difference between the sponge and foam: PVA sponge: polyvinyl alcohol and polyvinyl formal formaldehyde condensates, white or slightly yellow amorphous solid. Its softening point higher than the same series acetal material (140 ~ 150 ℃), strength, stiffness and hardness are larger and have good adhesive properties; in oil resistance, electrical insulation and other aspects are good; has good water resistance , alkali resistance, acid resistance. Flammable, black smoke. Melting and dripping with special smell. Foam: high density, liquid-stronger, more resilient foam and flexible, abrasion resistance, will not scratch the device is wiped, not crumbs. Foam particles and liquid into the holes, will not easily fall out or extruded with good locking capabilities. Foam is a specific water-soluble resin, a porous elastic body is obtained by a crosslinking reaction, because the molecular structure of the hydrophilic and have a strong absorption capacity. PVA foam sponge and the general amino acid methyl ester is different, there is a high hydrophilicity, with fine holes criss-cross the capillary plays superior absorbent, water retention. A contact with moisture, the adsorption speed is stored in the inside of cotton, typically 8-10 times its own weight of water absorption of the.
keywords: The difference between the sponge and foam,
Admin>>>
You are the 724671 visitor
Copyright © GuangDong ICP No. 10089450, Cheng Hui Industrial Investment Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility
You are the 724671 visitor
Copyright © GuangDong ICP No. 10089450, Cheng Hui Industrial Investment Co., Ltd. All rights reserved.
Technical support: ShenZhen AllWays Technology Development Co., Ltd.
AllSources Network's Disclaimer: The legitimacy of the enterprise information does not undertake any guarantee responsibility