Dow SYLTHERM 800
Product Description
A Virtually Odorless, Long-lasting Heat Transfer Fluid
SYLTHERM* 800 fluid is a highly reprocessing problem associated with stable, long-lasting, silicone fluid with other heat transfer media. designed for high-temperature liquid-
phase operation. It has a recommended Performance operating temperature range of
-40°F (-40°C) to 750°F (400°C).
Operating continuously at the upper end of this range, SYLTHERM 800 fluid exhibits low potential for fouling and can often remain in service for 10 years or more. The fluid is essentially odorless and is low in acute oral toxicity. Silicone heat transfer fluids such as SYLTHERM 800 fluid are not listed as reportable under SARA Title III, Section 313.1
SYLTHERM 800 fluid features include:
Low fouling potential
- Low freeze point
- High-temperature stability
- Long life
- Noncorrosive
- Low acute oral toxicity
- Low odor
- Non-reportable under SARA
SYLTHERM 800 heat transfer fluid provides excellent high-temperature stability. It is capable of operating for more than 10 years at 750°F (400°C) without fouling or periodic
Performance
SYLTHERM 800 heat transfer fluid has an operational temperature range of -40°F (-40°C) to 750°F (400°C).
The maximum recommended film temperature is 800°F (427°C).
The silicone polymer structure is shown in Figure 1. Under operational thermal stress, the fluid undergoes very slow rearrangement of the silicone-oxygen bonds to assume a composition that remains stable at the required operating temperature and pressure. The rate of molecular rearrangement is directly related to the temperature and is depressed substantially because of the patented formulation. Systems using
SYLTHERM 800 fluid requires no periodic venting; therefore, the low-molecular-weight linear and cyclic siloxanes that result from the rearrangement remain part of the heat transfer media and do not cause system fouling. The rearrangement that occurs with SYLTHERM 800 heat transfer fluid is not a degradation reaction and does not affect fluid life.
一種幾乎無味、長效的熱傳導流體
SYLTHERM* 800流體是一種高度與其他熱傳導介質相關的再加工問題穩定、長效的矽氧烷流體，專為高溫液相操作而設計。它的建議操作溫度範圍為
-40°F（-40°C）至750°F（400°C）。
在此範圍上限連續運行時，SYLTHERM 800流體顯示出較低的結垢潛力，通常可在使用中保持10年或更長時間。該流體基本無味，且急性口服毒性低。像SYLTHERM 800流體這樣的矽氧烷熱傳導流體不在SARA第三章第313.1節下列為需要報告的物質。
SYLTHERM 800流體特點包括：
較低的結垢潛力
低凝固點
高溫穩定性
使用壽命長
無腐蝕性
急性口服毒性低
低氣味
不需在SARA下報告
SYLTHERM 800熱傳導流體提供優異的高溫穩定性。它能夠在750°F（400°C）下運行超過10年而不結垢或需要定期
性能
SYLTHERM 800熱傳導流體的操作溫度範圍為-40°F（-40°C）至750°F（400°C）。
最大建議薄膜溫度為800°F（427°C）。
矽氧烷聚合物結構如圖1所示。在操作熱應力下，流體經歷非常緩慢的矽氧鍵重排，形成在所需操作溫度和壓力下保持穩定的組成。分子重排的速率與溫度直接相關，並因專利配方而大幅降低。使用
SYLTHERM 800流體的系統不需要定期排氣；因此，重排產生的低分子量線性和環狀矽氧烷仍然是熱傳導介質的一部分，不會導致系統結垢。SYLTHERM 800熱傳導流體發生的重排不是降解反應，不會影響流體壽命。
