Gluer plays an important role in the production of electronic communication industry. In the double liquid dispensing machine, once there is a chemical reaction with N, P, s and other organic elements, the reaction will occur rapidly, which is often called the phenomenon of silica gel poisoning in the double liquid dispensing machine.

　　双液胶填料中毒原因分析:

　　Cause analysis of double liquid rubber packing poisoning:

　　双液点胶机使用硅胶时，需要硅胶进行加成反应，即硅胶中的硅氢键与硅酮键加成反应。由于加成反应以铂为原料，两者的混合物产生一种不稳定的化合物。

　　When silica gel is used in double liquid dispenser, addition reaction of silica gel is needed, that is, addition reaction of silicon hydrogen bond and silicone bond in silica gel. Because the addition reaction is based on platinum, the mixture of the two produces an unstable compound.

　　这种混合材料,容易受到一些物理和化学结构或复合结构的变化,然后用氢容易失去催化活性和乙烯基硅债券,如果添加到硅胶硫化或养护期间,包含一个催化剂,它可以添加到任何材料的成型(“Pt”反应(两表面接触,等等)在正常养护条件。

　　This hybrid material is susceptible to changes in some physical and chemical structures or composite structures, and then easy to lose catalytic activity with hydrogen and vinyl silicon bonds, if added to silica gel during vulcanization or curing, including a catalyst, it can be added to any material forming ("PT" reaction (two surface contact, etc.) under normal curing conditions.

　　如果硅橡胶未固化(前后反应仍为液体)，或处理不彻底(硅橡胶固化后无法达到要求的弹性体或硬度，或固化后表面变得粘稠)，这种现象就是催化剂“中毒”的发生。

　　If the silicone rubber is not cured (the reaction before and after the country is still liquid), or the treatment is not complete (the silicone rubber cannot reach the required elastomer or hardness after curing, or the surface becomes sticky after curing), this phenomenon is the occurrence of catalyst "poisoning".

　　介绍了一种避免双点胶机硅胶中毒的方法

　　This paper introduces a method to avoid silica gel poisoning of double dispenser

　　,为了避免硅胶中毒的发生,避免接触有机化合物含有磷、硫和氮的使用double-liquid浇注机,或避免使用聚氨酯、环氧树脂、不饱和聚酯、浓缩RTP硅橡胶和其他产品的使用double-liquid浇注机。

　　First of all, in order to avoid the occurrence of silica gel poisoning, avoid the use of double liquid pouring machine for contacting organic compounds containing phosphorus, sulfur and nitrogen, or avoid the use of double liquid pouring machine for polyurethane, epoxy resin, unsaturated polyester, concentrated RTP silicone rubber and other products.

　　有一种双液点胶机在使用不同厂家生产的硅胶时，必须将原双液点胶机的硅胶从桶中逐步清洗到胶泵中，以免发生胶源密封中毒现象。

　　When using silica gel produced by different manufacturers, the silica gel of the original double liquid dispenser must be gradually cleaned from the barrel to the rubber pump to avoid the sealing poisoning of the rubber source.