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Magnesium hydrate composition and manufacturing method thereof, and resin composition and molded article thereof

A magnesium hydroxide, manufacturing method technology, applied in the direction of magnesium hydroxide, dyed low-molecular organic compound treatment, fibrous filler, etc., can solve the problem of no improvement in flame retardancy, long-term water resistance of molded products, poor weather resistance, and environmental problems. Hormone pollution and other problems, to achieve the effect of excellent flame retardancy and durability, heat deterioration resistance and color tone

Inactive Publication Date: 2014-02-26
MARUO CALCIUM COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most phosphorus-based flame retardants are liquid, there are many problems that must be solved: the impact resistance and other mechanical strength of resin molded products mixed with phosphorus-based flame retardants are reduced; due to easy hydrolysis, the long-term durability of molded products Poor water resistance and weather resistance; there is a possibility of environmental hormone pollution due to dyeing of phosphorus compounds, etc. For example, it not only meets the UL-94 standards required for electric wires, cables, and automotive wiring, but also has long-term water resistance. And weather resistance, no impact on the environment, which is very difficult for the existing technology
Metal hydroxides such as magnesium hydroxide have no relationship with flame retardancy once they are decomposed and dehydrated, so there is a problem of lack of sustainability. Did not propose any improvement measures

Method used

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  • Magnesium hydrate composition and manufacturing method thereof, and resin composition and molded article thereof
  • Magnesium hydrate composition and manufacturing method thereof, and resin composition and molded article thereof
  • Magnesium hydrate composition and manufacturing method thereof, and resin composition and molded article thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0127] Add barium chloride corresponding to 90% of the molar number of sulfur remaining in the magnesium chloride solution 1 to the brine solution to precipitate barium sulfate, filter, concentrate or dilute, and adjust to a magnesium chloride solution with a Baume specific gravity of 1.3.

[0128] Add 5 L of the resulting solution into a 10 L autoclave, adjust the liquid temperature to 20° C., and add 5 L of milk of lime with a concentration of 12 wt % to adjust the liquid temperature to 20° C. over 5 minutes under agitation to make the magnesium chloride and calcium hydroxide Magnesium hydroxide particles were generated by the reaction, and the autoclave was heated while maintaining stirring after the addition of the milk of lime, and the temperature of the liquid in the autoclave was raised to 160° C. for 2.5 hours, and then maintained for 4 hours.

[0129] Afterwards, it is cooled by natural heat release, and the reaction suspension of the obtained magnesium hydroxide parti...

Embodiment 2～7

[0134] A magnesium hydroxide composition was prepared in the same manner as in Example 1 except that the conditions described in Table 1 were changed. The preparation conditions and various physical properties of the obtained magnesium hydroxide composition are shown in Table 1.

[0135] In Example 2, iron (III) chloride corresponding to 450 ppm of iron and manganese chloride corresponding to 45 ppm of manganese were added.

Embodiment 8

[0137] A magnesium hydroxide composition was prepared in the same manner as in Example 1, except that the time for putting milk of lime into the magnesium chloride solution in the autoclave was changed to 12 minutes. The preparation conditions and various physical properties of the obtained magnesium hydroxide composition are shown in Table 1.

[0138] [Table 1]

[0139]

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Abstract

Provided is a magnesium hydrate composition comprising magnesium hydrate particles containing iron and / or manganese and sulfur. The content (M) of the iron and / or manganese as measured using an atomic absorption spectrophotometer is in the range of 10-1,000 ppm with respect to the magnesium hydrate particles, the content (S) of the sulfur as measured using an infrared absorption method is in the range of 10-1,800 ppm with respect to the magnesium hydrate particles, and the ratio (S / M) of the content (S) of the sulfur to the content (M) of the iron and / or manganese is in the range of 1.0-1.8. The magnesium hydrate composition has excellent flame retardancy and sustainability thereof when mixed with a resin, and excellent thermal deterioration resistance and a good hue can be imparted.

Description

technical field [0001] The present invention relates to a magnesium hydroxide composition capable of imparting a high flame retardancy and a good color tone to a resin, and a method for producing the same, as well as the heat deterioration resistance, flame retardancy and A resin composition excellent in flammability and a molded article formed from the resin composition. In more detail, it relates to a magnesium hydroxide composition, a method for producing the same, and a resin composition having excellent thermal deterioration resistance and flame retardancy formed by blending it in a resin, and a molded article formed from the resin composition. The above-mentioned magnesium hydroxide composition has the following advantages: the flame retardancy of the magnesium hydroxide particles excellent in dispersibility when blended in a resin is improved due to the inclusion of a specific metal element, and the color tone is hardly deteriorated due to the inclusion of the metal ele...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01F5/22C08K9/00C08L101/00C09C1/02C09C3/08C09K21/02
CPCC01P2006/12C01P2006/64C01P2006/62C01P2002/52C09K21/02C09C1/028C01F5/22C09C1/02C01P2006/80C01P2004/61C08K9/04
Inventor 清水清也小林功治
Owner MARUO CALCIUM COMPANY
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