Product manual for defoamers (carbon alcohols and polyethers)
Product Name: Carbon Alcohol Defoamer, Polyether Defoamer (specifically for papermaking)
Product Model: Mainly used in the papermaking industry
Performance characteristics:
Foam refers to the air generated by external impact into the water and then floats up to the surface. Due to the high viscosity concentration of water, the outer layer of foam cannot be exploded in time to eliminate bubbles; This kind of foam will burst under the pressure of felt cloth during the process of paper mesh forming, resulting in holes in the paper or uneven paper surface, affecting the paper quality. Defoamer is to add a small amount of foam breaking materials to the water for these bubbles, and then the foam in the water can be completely removed!
1. Performance and function of high carbon alcohol defoamers:
A、 Removing microbubbles, effectively breaking bubbles, and long-lasting foam suppression; Has good degassing and defoaming performance;
B、 Excellent performance in the temperature range of 20-40 ℃;
C、； Good compatibility, does not cause wetting defects;
Main parameters (note: the following data is for reference only and not used as technical indicators)
Appearance: White milky homogeneous liquid ----------------------------------------------------------------
Content (%): 58.0 ± 1.0-------------------------- (GB/T6284-2006 Drying Reduction Method)
PH value: 6.0-7.0---------------------------- (1% aqueous solution, precision pH test paper test)
Effective content: 30--------- (GB/T 5561-1994NDJ-5S digital viscometer)
Ton of paper usage -----------------------------------------------------------------
Recommended application areas
Typical recommended application areas: production processes for toilet paper, cardboard, whiteboard paper, corrugated paper, news paper, and various cultural paper;
General recommendation application areas: Other processes that cannot use organosilicon.
Product usage suggestion: This defoamer can be directly added and used. The amount of defoamer added can be 100-300ppm (0.1-0.3 kg), and the optimal amount can be adjusted by the customer according to specific circumstances;
2、 Polyether defoamer:
1. The main characteristics of polyether defoamers are: 1) good compatibility; 2. Low biological toxicity; 3 does not cause wetting defects
Main parameters (note: the following data is for reference only and not used as technical indicators)
Appearance: Slightly yellow liquid transparent -----------------------------------------------------------------
Content (%): 100 ± 1.0---------- (GB/T6284-2006 Drying Reduction Method)
PH value: 6.0-7.0----------------------- (1% aqueous solution, precision pH test paper test)
Viscosity (100 ℃): 250-500--- (GB/T 5561-1994 NDJ-5S Digital Viscometer)
Ton of paper usage -----------------------------------------------------------------
Recommended application areas
Typical recommended application areas: production processes for toilet paper, cardboard, whiteboard paper, corrugated paper, news paper, and various cultural paper;
General recommendation application areas: Other processes that cannot use organosilicon.
Product usage suggestion: This defoamer can be directly added and used. The amount of defoamer added can be 100-300ppm (0.1-0.3 kg), and the optimal amount can be adjusted by the customer according to specific circumstances;
Usage: ⑴ Take this agent and add it directly to the high-level tank. After thorough mixing, it can be used; ⑵ Add dropwise to the white water tank using the drip method; If necessary, it can also be diluted for use. If diluted on-site, add water directly at a ratio of 1:5, but it should be used up in a timely manner to prevent deterioration over time. The mixing speed should not be too fast during the mixing process, and it should be stirred evenly.
Packaging, storage, and transportation suggestions: Our company's product is mainly packaged in 25kg, 200kg, and ton boxes; Defoamers are suitable for storage at 5-35 ℃ and should not be placed near heat sources or exposed to sunlight. According to general chemical storage methods, ensure sealing after use to avoid deterioration. Shelf life: 6-8 months.