What is the chemical or scientific name of UL white gum and UL yellow gum?

Neoprene rubber.

The main design purpose of UL white glue is to develop a general industrial adhesive with strong adhesion, wide range of application, and in line with the latest environmental protection and safety (UL) requirements, its main purpose is to be used for the fixing and welding reinforcement of various electronic components such as large capacitors, resistors, inductors and mechanical components such as fans and heat sinks, so as to prevent tearing of solder joints or (and) tearing or other stress damage of connection joints caused by vibration or other external impacts. 2: The use of yellow glue is mainly for insulation, dustproof, shockproof, fixing, filling and connection of electrical appliances, audio, optics, power supplies, chargers and other parts.

It is suitable for fixing with electronic computers, metals, ABS, acrylic and large electronic products. It has reached the 94V0 certification standard, passed the SGS certification, and met the requirements of the latest RoHS environmental protection standards of the European Union.

Specification. 1) Main component: chloroprene rubber.

2) Color: Pale yellow.

3) Solids: 44 48

4) Viscosity: 17000--21000 cps or more (25)5) Specific gravity: 6).

Flash Point: 7) Ignition Point: 268

8) Temperature resistance: 120

9) Storage period: 6 months.

2. Characteristics.

1) It has passed UL certification and meets UL94V-0 standard.

2) It has a high thixotropy and is difficult to work without pressing, but only a small amount of pressure is sufficient, because it has the effect of filling and sealing.

3) It has better electrical properties than ordinary chloroprene.

4) It has good usability, less stringing, no sagging, and can be used for all kinds of gluing.

5) Room temperature hardening does not require heating and curing.

The use of UL white glue and ul yellow glue is the assembly of electronic parts, such as switching power supply, dy, etc., the English version of ul yellow glue MSDS I have, you need I can give you. There is also a Chinese description of the following **, including, product name, use, appearance, principal component, viscosity (cps 25 °C), solid content (%) characteristics, etc., you can refer to the following.

Yellow gum can be dissolved in cold water and hot water, with high viscosity, high acid, alkali, salt resistance, high heat stability, suspension, thixotropy, etc., often used as thickener, family difference emulsifier, suspension agent, stabilizer, has broad market prospects, widely used in daily chemicals, food, medicine, oil production, textile, ceramics and porcelain, printing and dyeing and other fields.

Yantai brand's Jushan Ridge UL flame retardant electronic yellow glue has no drawing, no pollution, fast initial curing speed, its curing and flame retardancy meet UL requirements, and has good electrical insulation; Positive osmosis.

It has many advantages such as room temperature curing, easy operation, high bonding strength, fast positioning, high elasticity, high hardness of adhesive film, and non-toxic solidification.

High viscosity, no drawing, no sagging, can be used for vertical coating and other operation characteristics;

It has excellent characteristics such as water resistance, heat resistance, acid resistance, alkali resistance, corrosion resistance, oil resistance and earthquake resistance;

My understanding is that UL has standards for viscose, meets these standards, and the glue after UL certification belongs to UL glue. UL will give a certificate; In the same way, even if the performance meets the requirements of the UL standard, it is not UL glue if it has not been certified.

For details, you can go to the security network to see, ** people are still quite loving, and if you ask questions, there will be a master soon!

Recent studies have shown that the reduction of nitrate to nitrite is carried out with the participation of dissimilated nitrate reductase. The authors have successfully developed a passivator for dissimilated nitrate reductase, which has obligate one and does not affect the activity of other microbial biochemical enzymes. The test showed that the application of this passivating agent in the pond increased the growth rate of nitrifying bacteria and the nitrification rate, and controlled the nitrite within the safe concentration range within 30-40 days.

The agent is almost unaffected by the water environment, and is expected to completely solve the global problem of nitrite plaguing the aquaculture industry. The correlated tests are still being further improved.

One-component neoprene rubber is the main component, heat-resistant, weather-resistant water-based adhesive, the biggest feature is that the surface is not easy to condense, with a long aging time, short pressurization time, high dry strength, environmental protection and other characteristics. Since it is in the form of water, of course it is polar, otherwise how can it be dissolved in water?