活化处理氢氧化镁阻燃剂

Magnesium Hydroxide Fire Retardant Subject to Activated Treatment

一：产品简介和用途

I: Product Introduction and Purpose

本公司加工生产的氢氧化镁，是由精选的天然水镁石矿通过先进生产工艺加工而成，产品纯度高，分子式为Mg (OH)₂。水镁石单晶体呈厚板状，常见为片状集合体，有时成纤维状集合体，称为纤水镁石（Nemalite）或水镁石。颜色呈白至淡绿色，含有锰或铁者呈红褐色，水镁石的颜色变化取决于混入物的含量，如含铁、锰杂质的变种呈现黄色或褐红色。解理面为珍珠光泽，新鲜晶面与断口现玻璃光泽，纤水镁石呈丝绢光泽。

The magnesium hydroxide processed and produced by this company is made from selected natural brucite ores through advanced production process. With a high purity, the product has molecular formula Mg (OH)₂. The brucite mono-crystal is plank-like, commonly lamellar aggregate and sometimes fibrous aggregate, being called nemalite or brucite. The color is from white to light green and reddish brown if containing manganese or iron.  The color change of brucite depends on the mixture content, for example, the variants containing iron, manganese foreign matters are in yellow or maroon color. The cleavage surface has pearl gloss, the fresh crystal surface and fracture has glass gloss, the nemalite has silk gloss.

本公司针对氢氧化镁在阻燃高分子应用中所表现出的一些常见问题，对阻燃剂的表面改性进行了大量的系统研究工作，成功开发了包覆改性技术并实现系列产品的产业化。用户可以针对所用聚合物体系和阻燃高分子性能的特定要求，选择不同包覆改性的产品，从而改善氢氧化镁与高分子共混时的分散性和流变性能，提高阻燃材料的阻燃性能和机械性能。氢氧化镁系列产品在国际同类产品中名列前茅，具有高性价比特性；本公司的产品质量可为高性能阻燃高分子制品的质量稳定提供有力的保障。改性后的氢氧化镁在树脂等基体中分散更均匀，从而使得电缆制品、橡塑制品、塑料制品等的物理化学性能更加优越，有利于拉伸度、分散性和加工性能的提高，我司可根据客户的要求对各种型号氢氧化镁进行改性。

In respect of some common problems that magnesium hydroxide has in fire-retarding macromolecular applications, this company has made a lot of systematic researches into the surface modification of fire retardants, successfully developed the clad modification technology and realized series product industrialization. The users can select different clad modification products according to the specific requirements of the polymer system used and fire-retarding macromolecular performance to improve the dispersity and rheological behavior when magnesium hydroxide and macromolecules blend, raise the fire resistance and mechanical properties of fire-retarding materials. The products of magnesium hydroxide series come out top in international similar products, having a high cost performance; the product quality of this company can provide a strong guarantee for the stable quality of high-performance fire-retarding macromolecular products. The modified magnesium hydroxide disperses more evenly in the matrix of resin, etc. As a result, the physical and chemical properties of cable products, rubber products, plastic products, etc. are more superior to be conducive to the heightening of the tensile degree, dispersity and processability. Our company can modify different models of magnesium hydroxide according to customer requirements.

经过活性处理后的氢氧化镁广泛用作PE、PP、PVC、ABS、PS、HIPS、PA、PBT、不饱和聚酯、环氧树脂、橡胶等高分子材料的优良阻燃剂和填充剂。在电子、不饱和聚酯和油漆、涂料等高分子材料中，特别是对矿用导风筒涂覆布、PVC整芯运输带、阻燃胶板、蓬布、PVC电线电缆料、矿用电缆护套、电缆附件的阻燃、消烟及抗静电领域，可代替氢氧化铝，具有优良的阻燃效果。

The magnesium hydroxide subject to activated treatment is widely used as a good fire retardant and filler of such macromolecular materials as PE, PP, PVC, ABS, PS, HIPS, PA, PBT, unsaturated polyester, epoxy resin, rubber, etc. In electronics, such macromolecular materials as unsaturated polyester and paintings, coatings, and especially in the field of fire retardation, smoke suppression and electrostatic resistance for coated cloth of mine air guide tube, PVC solid-woven conveyor belt, fire-retarding rubber sheet, tarpaulin, PVC wire and cable material, mine cable sheath and cable accessories, it can supersede aluminum hydroxide for its good fire-retarding effect.

二: 产品特点

II: Product characteristics

氢氧化镁与氢氧化铝因分解吸热量大，并产生H₂O可起到隔绝空气作用，其分解后氧化物又是耐高温物质，故二种阻燃剂不仅可起到阻燃作用，而且可以起到填充作用，具有不产生腐蚀性卤气及有害气体、不挥发、效果、无毒、无烟、无滴落等特点。
氢氧化镁较氢氧化铝具有如下优点：①氢氧化镁热分解温度达350℃，比氢氧化铝高100℃，故有利于塑料加工温度的提高，加快挤塑速度，缩短模塑时间；②氢氧化镁与酸的中和能力强，可较快地中和塑料燃烧过程产生的酸性气体SO₂、NOx、CO₂等；③氢氧化镁分解反应焓变高，吸收热量大，有利于吸收燃烧热，提高阻燃效率；④氢氧化镁抑烟能力强、硬度小，对设备摩擦小，有助于延长生产设备寿命。

With a high heat-absorbing capacity in decomposition in which H₂O is produced to isolate air and the oxide after decomposition being a high-temperature resistant substance, the two fire-retarding types of magnesium hydroxide and aluminum hydroxide can not only retard fire but can also be used as a filler. It is characterized by producing no corrosive halogen and harmful gas, being non-volatile, non-toxic, free from smoke and dripping, etc.

氢氧化镁较氢氧化铝具有如下优点：①氢氧化镁热分解温度达350℃，比氢氧化铝高100℃，故有利于塑料加工温度的提高，加快挤塑速度，缩短模塑时间；②氢氧化镁与酸的中和能力强，可较快地中和塑料燃烧过程产生的酸性气体SO₂、NOx、CO₂等；③氢氧化镁分解反应焓变高，吸收热量大，有利于吸收燃烧热，提高阻燃效率；④氢氧化镁抑烟能力强、硬度小，对设备摩擦小，有助于延长生产设备寿命。

In comparison with aluminum hydroxide, magnesium hydroxide has the following advantages: ① The heated decomposition temperature of magnesium hydroxide is 350°C, 100°C higher than that of aluminum hydroxide. This is conducive to the heightening of plastic processing temperature, plastic extrusion speed and molding time shortening; ② The ability of magnesium hydroxide to neutralize with acids is strong enough to quickly neutralize the acidic gases of SO₂, NOx, CO₂, etc. produced in plastic combustion; ③ The enthalpy change of magnesium hydroxide decomposition reaction is high with the heat absorbed being large. This is conducive to the absorbing of combustion heat and the heightening of the fire-retarding efficiency; ④ The smoke suppression ability of magnesium hydroxide is high, the hardness is small with less friction with equipment. This is conducive to the extension of the production equipment life.

三：规格

III: Specifications