At 9:55 on March 4, the silicone sector index reported 975.172 points, a drop of 2%, with a turnover of 1.674 billion yuan and a turnover rate of 1.00%. Among the stocks in the sector, the top five stocks with the largest decline were: Sanyou Chemical Industry reported 11.72 yuan, down 6.98%; Hesheng Silicon Industry reported 46.00 yuan, down 6.64%; Runhe Materials reported 29.25 yuan, down 4.38%

Xingshan County, Hubei Province, has many mountains in its territory, and the enclave park supports the county's industry. In recent years, driven by the county-owned state-owned enterprise Xingfa Group, downstream and supporting enterprises in the industrial chain have continued to gather, and the industrial cluster effect has initially appeared, and the output value of the silicon material indus

International Electrotechnical Commission, Standards for Silicone IEC 60893-3-6 AMD 1-2009 Insulating materials. Thermosetting resin industrial hard laminates for electrical purposes. Part 3-6 Specification for special materials. Requirements for rigid plywood based on silicone resin. Amendment 1 IEC 60394-3-2-1988 Impregnated fabrics for electrical purposes Part 3 Specifications for individual

With the development of the electronics industry, electronic components and integrated circuits tend to be dense and miniaturized, and "heat" has become the prime enemy of the operation of electrical appliances. In order to avoid electrical failures caused by poor heat dissipation to the greatest extent, thermally conductive silica gel is generally applied to the contact surface between the heatin

 愉快的假期总是过的快，小编今天正式上班啦！行情也马上关注起来，今天我们先复盘一下节前价格，2月份开局，有机硅市场表现稳中上涨，部分单体厂限量惜售，根据春节前DMC主流报价21500-22000元/吨。业内人士对于节后有机硅的价格发展多偏乐观，尤其是节前最后一周，个别单体厂仍在拉涨，考虑到今年下游复工都趋于正常化，节后有部分补库需求，其它单体厂及硅油，硅橡胶厂家补涨可能性大。 首先关注的是库存方面，节前各厂家接单较好，库存压力不大，今年国内有机硅各环节复工情况比较乐观，需求能保持跟进，并且今年贸易商库存较去年相比明显偏低，加上下游厂家节后有补仓需求存在，短期内单体厂库存无忧，惜售探涨仍将继续！ 其次是上下游企业的开工情况，上游企业方面，春节期间埃肯星火逐步停车检修，中天东方氟硅停车，三友、兴发常规检修，合盛硅业年产20万吨新增装置已于2月10号生产出了有机硅中间体，预计今年6

Two-component addition molding room temperature vulcanized silicone rubber is divided into elastic silicone gel and silicone rubber. The former has lower strength and the latter has higher strength. Their vulcanization mechanism is based on the addition reaction (hydrosilation reaction) between the vinyl groups (or propylene groups) on the end groups of the raw silicone rubber and the hydrosilyl g

(1) Methyl room temperature vulcanized silicone rubber is an old variety of general-purpose silicone rubber, which has the advantages of water resistance, ozone resistance, arc resistance, corona resistance and weathering resistance. It can be used in the temperature range of 60～200℃. Therefore, it is widely used as a filling and sealing material for electronic and electrical components, and a moi

The vulcanization reaction of one-component room temperature vulcanized silicone rubber is initiated by moisture in the air. The commonly used cross-linking agent is methyl triacetoxy silane. Its Si-OC bond is easily hydrolyzed. The acetoxy group combines with the hydrogen group in the water to form acetic acid, and the hydroxyl group in the water is moved to the original acetoxy group. In positio

The vulcanization reaction of one-component room temperature vulcanized silicone rubber is initiated by moisture in the air. The commonly used cross-linking agent is methyl triacetoxy silane. Its Si-OC bond is easily hydrolyzed. The acetoxy group combines with the hydrogen group in the water to form acetic acid, and the hydroxyl group in the water is moved to the original acetoxy group. In positio

The advantages and disadvantages of the three kinds of room temperature vulcanization silicone rubber: the advantage of single-component room temperature vulcanization silicone rubber is that it is easy to use, but the deep curing speed is more difficult; the advantage of two-component room temperature vulcanization silicone rubber is that it does not emit heat during curing and has a small shrink