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Modified silicon white powder containing coupling agent

A technology of silica white powder and coupling agent, which is applied in the field of engineering plastic filling materials, can solve the problems of incomplete breakthroughs in covering rate and aging resistance, and achieve high strength, improved elastic modulus, and enhanced plastic performance.

Inactive Publication Date: 2009-08-05
上海麦登钢结构工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the alternative materials of titanium dioxide, people have carried out a lot of explorations on materials and modification processes, and made a lot of progress, but there has never been a complete breakthrough in covering rate and aging resistance. Titanium dioxide is still recognized as the best plastic filling material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A modified silica white powder, its composition is:

[0018] SiO 2 41%,

[0019] CaO 50%,

[0020] Al 2 O 3 4%,

[0021] MgO 5%,

[0022] The above percentages are percentages by weight. The manufacturing method of the above-mentioned modified silica white powder: select imported silica ore, change the crushing method, adopt the super-generating crushing method, and cut according to the mineral texture to make the silica white powder have a needle-like structure. Under the control of computer simulation, the aspect ratio and particle size dispersion can be obtained. Effective control, changing the physical properties of the material surface, closer to the properties of titanium dioxide. After being coupled with a silane coupling agent for composite surface treatment, the modified silica powder has flexible flow properties at high temperatures. It is found in experiments that its fluidity exceeds that of rutile titanium dioxide. Silicon material has natura...

Embodiment 2

[0025] A modified silica white powder, its composition is:

[0026] SiO 2 50%,

[0027] CaO 46%,

[0028] Al 2 O 3 2%,

[0029] MgO 2%,

[0030] The above percentages are percentages by weight. The manufacturing method of the above-mentioned modified silica white powder: select imported silica ore, change the crushing method, adopt the super-generating crushing method, and cut according to the mineral texture to make the silica white powder have a needle-like structure. Under the control of computer simulation, the aspect ratio and particle size dispersion can be obtained. Effective control, changing the physical properties of the material surface, closer to the properties of titanium dioxide. After being coupled with 2% silane coupling agent by weight of the above modified silica white powder for composite surface treatment, the above modified silica white powder containing coupling agent has flexible flow properties at high temperatures. It is found in experim...

Embodiment 3

[0033] A modified silica white powder, its composition is:

[0034] SiO 2 45%,

[0035] CaO 48%,

[0036] Al 2 O 3 3.5%,

[0037] MgO 3.5%,

[0038] The above percentages are percentages by weight. The manufacturing method of the above-mentioned modified silica white powder: select imported silica ore, change the crushing method, adopt the super-generating crushing method, and cut according to the mineral texture to make the silica white powder have a needle-like structure. Under the control of computer simulation, the aspect ratio and particle size dispersion can be obtained. Effective control, changing the physical properties of the material surface, closer to the properties of titanium dioxide. After being coupled with 2.5% silane coupling agent by weight of the above modified silica white powder for composite surface treatment, the above modified silica white powder containing coupling agent has flexible flow properties at high temperatures. It is found in exper...

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Abstract

The invention relates to improved silicon pigment containing coupling agent and used as the filling material of engineering plastic. The improved silicon pigment containing the coupling agent also contains the following components according to the percent by weight: 41-50 percent of SiO2, 46-50 percent of CaO, 2-5 percent of Al2O3 and 2-5 percent of MgO. The improved silicon pigment containing the coupling agent is processed on surface by silane coupling agent in a coupling way; and the improved silicon pigment containing the coupling agent has flexible flow property, high strength and high retention rate under high temperature, thereby being convenient for use. Various physical indexes and ultraviolet-resistant indexes of a resin product are effectively improved by appropriately regulating the material proportion on the premise that the prior technology and the original filling materials are not changed, the problem of replacing the titanium pigment used as the filling material of the engineering plastic is fully solved, and the cost of the engineering plastic is remarkably lowered.

Description

Technical field [0001] The invention relates to engineering plastic filling materials, in particular to a modified silica white powder containing a coupling agent for engineering plastic filling materials. Background technique [0002] It is well known that the various performance indicators of plastics are provided by the matrix resin, but the application in engineering has certain limitations and unity. How to expand the application range of plastics requires adding filler materials to the plastic to make it an engineering plastic. [0003] Titanium dioxide is recognized as the best plastic filling material. Titanium dioxide, as a strategic reserve material, has limited application resources, and the price has remained high in recent years. For the alternative materials of titanium dioxide, people have carried out a lot of exploration of materials and modification processes, and made a lot of progress, but there has not been a complete breakthrough in the coverage rate and agin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/40C09C3/12C09C1/28
Inventor 倪明倪国庆朱海月
Owner 上海麦登钢结构工程有限公司
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