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Ethyl orthosilicate is a non-molecular surfactant with reactive activity
Author:LongKom  Time:2013-3-31

Ethyl orthosilicate is a special silicone oil which is formed by the reaction of organic siloxane and allyl polyether. Ethyl orthosilicate is a non-molecular surfactant with reactive activity. It can dissolve with water, aromatic hydrocarbons and alcohols at any ratio. It has excellent washability, antistatic and softness, and is especially suitable for shampoo and conditioner production.


Plastic release agent is a kind of release agent, which is specially made for the characteristics of the plastic industry. It has high temperature resistance. It can improve the strength and heat resistance of the plastic release agent mould, and reduce the cost. For example, the addition of wood flour in phenolic resin can greatly reduce costs, making phenolic plastics one of the cheapest plastics, while significantly improving the mechanical strength.


Fillers can be divided into organic fillers and inorganic fillers, the former such as wood flour, rags, paper and various fabric fibers, the latter such as glass fiber, diatomite, asbestos, carbon black and so on.


Mold temperature is too low, injection pressure is low. Shrinkage: Short cooling time, low injection pressure and poor exhaust.


Bulk peak: Injection pressure is too high, high temperature, die aging or wear. Deformation: Shorter forming time, excessive packaging, uneven thicknesses of thimbles, uneven product shape.


Wire: Mold temperature is too low, too many raw materials, too many mixed secondary erasure release agent.

Most of the plastic release agents have chemical stability, light weight, rust-free, impact resistance; tetraethyl orthosilicate has good transparency and wear resistance; good insulation, low thermal conductivity; in fact, resin and plastic are two different concepts. Resin is an unprocessed raw polymer. It is not only used to make plastics, but also used as raw materials for coatings, adhesives and synthetic fibers. In addition to a very small portion of plastics containing 100% resin, some plastic release agents are soluble in solvents. Thermoplasticity: Thermosetting plastic release agent refers to the characteristics that can be cured or can not be overcome by heating under other conditions, such as bakelite, epoxy plastic release agent, etc.


Thermosetting plastic release agent can be divided into formaldehyde cross-linking agent and other cross-linking agent. Formaldehyde cross-linking plastic release agent includes bakelite, urea amino plastic release agent (formaldehyde, melamine formaldehyde, etc.). Other cross-linking release agents include unsaturated polyester, epoxy resin, phthalaldehyde resin, etc. Thermosetting: Thermoplastic release agent refers to a plastic release agent, such as polyethylene, which can soften and harden many times in a specific temperature range.


How to Use Isolating Agent Correctly
SI-40 tetraethyl orthosilicate

Isolator is a kind of assistant used in rubber processing. Its main function is to prevent material from bonding with each other. Attention should be paid to the following aspects when using isolators:


1. Stainless steel dies are generally used with isolators, and it is suggested that the effect of hot film will be better.


2. Before using the new mould, it is better to bake the empty mould for 2-3 times. The first advantage is that butter can be burned off and the expansion coefficient of the mould can be stabilized. When using old abrasives, be sure to remove the dust on their surface, otherwise it will affect the effect.


3. Isolator will not deteriorate, so it can be reused. When the effect is found to be weakened, it can be strengthened. After using the isolator, if the mould is not used for the time being, the mould should be set up separately, avoid overlapping and dirty the mould. When the tetraethyl orthosilicate mould is placed for a period of time and reused, the impurities should be cleaned up, and the glass should be put for trial baking and reused.


4. Although the highest temperature of the isolator can reach 1200 C, attention must also be paid to setting fire and explosion-proof when packing.

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