How to detect the various performance indicators of aluminum hydroxide?
The products of aluminum hydroxide manufacturers should carry out corresponding tests on some of its performance indexes. The following is a detailed introduction: for the measurement of loose density and reloading density, take a 10ml clean and dry measuring cylinder, add aluminum hydroxide powder to 10ml, weigh, and measure loose density; Then shake up and down 100 times at a height of 30mm to measure the reloading density.
aluminum hydroxideThe products in the manufacturer should be tested accordingly for some of its performance indicators. The following is a detailed introduction:
Measurement of loose density and reloading density
Take a 10ml clean and dry measuring cylinder, add aluminum hydroxide powder to 10ml, weigh, and measure the loose density; then shake up and down for 100 times at a height of 30mm, and measure the reloading density.
Measurement of viscosity of unsaturated polyester paste
Weigh a certain amount of unsaturated polyester and aluminum hydroxide powder according to the mass ratio of 2:3, place them in a beaker, put them into a constant temperature glycerin bath, and stir the mixed materials at different heights with the same stirring method, stirring intensity and stirring duration to make them evenly mixed. After the mixed paste reaches the predetermined temperature, continue to keep the temperature for 20min (due to the poor fluidity and heat transfer of unsaturated polyester, therefore, keep a certain period of time until the temperature reaches uniform), and measure with a viscometer after the temperature is stable to obtain the viscosity value of the mixed paste.
Measurement of oil absorption value
Take 5g aluminum hydroxide and place it on clean flat glass, then drop analytically pure castor oil into the aluminum hydroxide to be tested, and stir while dropping until the aluminum hydroxide to be tested can firmly adhere together. Record the amount of castor oil (ml) at this time, that is, the adsorption amount of castor oil of 5g aluminum hydroxide, and then convert it into the adsorption amount of 100g aluminum hydroxide, that is, the measured oil absorption amount.
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Zhongke Flame Retardant Organization Watches 20 Closing Ceremonies
On the morning of October 22, 2022, members of Zhongke Flame Retardant New Materials Co., Ltd. watched the closing ceremony of the 20th Congress under the leadership of General Manager Wang Ligui.
Everyone knows that there are two common flame retardants. Today we are going to talk about only one of them. Aluminum hydroxide flame retardant is an environmentally friendly halogen-free flame retardant, which can be widely used in fabrics, wood, plastics, and rubber., Polyurethane and other industries have ideal flame retardant effect. In the process of industrial application, it is found that flame retardant failure occurs when aluminum hydroxide flame retardant is added. The following are the reasons for the failure of aluminum hydroxide flame retardant, how to prevent it, how to deal with the operation, and restore the original function.
As a flame retardant, magnesium hydroxide also need to improve what aspects?
When it comes to flame retardants, everyone is familiar with them. Although we usually have less contact with them, we can know what they are used for from the name. Have to talk about magnesium hydroxide, we all know that its main presentation state is a granular, at present, the market sales of magnesium hydroxide particle size is larger, part of the commodity particle size up to tens of microns, immediately used as a flame retardant, poor dispersion, the physical properties of raw materials greater harm. In industrial production, physical grinding methods are generally used to reduce the particle size to 1 micron. The surface of magnesium hydroxide has high polarity and is easy to agglomerate. As the compatibility of refractory materials and polymer substrates, it not only reduces its flame retardant grade, but also causes more serious harm to the physical properties of raw materials.
Hefei Zhongke Flame Retardant New Material Co., Ltd
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Ministry of Foreign Trade Telephone:13956052398
Comprehensive department Telephone:0551-67712199
Company headquarters address: Hefei Feidong Economic Development Zone Xianghe Road 36
E-mail:hefei@zkxcl.com
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