Special calcium powder production material for MS glue and production method thereof

A production method and technology of calcium powder, applied in the field of calcium powder production materials for MS glue, can solve the problems of wide particle size distribution, weak tensile strength, poor thixotropic performance, etc., achieve narrow particle size distribution and improve performance , the effect of reducing production costs

Inactive Publication Date: 2020-04-17
泾县苏皖纳米碳酸钙有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing calcium powder for MS glue is generally processed by dry method. The active calcium powder of this processing method has a wide particle size distribution and uneven particles, which leads to poor thixotropic properties and weak tensile strength of the produced MS glue. Therefore, the present invention designs a kind of special calcium powder production material for MS glue and production method thereof to solve the problems existing in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A special calcium powder production material for MS glue, consisting of the following raw materials:

[0025] Materials; 600 mesh coarse powder 700kg, water 300kg, dispersant 2.8kg, solid calcium powder, silane coupling agent;

[0026] The water used is production water, and after disinfection and other treatment, select suitable soft water or hard water according to the needs;

[0027] The main component of the dispersant is: sodium polyacrylate, and the addition amount is 4‰ of the powder. The industrial sodium polyacrylate meets the standard: HG / T2838-2010. The standard stipulates that the product appearance is colorless to yellow liquid, and the solid content is greater than or equal to 30%. According to the softness and hardness of water, the viscosity of sodium polyacrylate is adjusted and selected.

Embodiment 2

[0029] A kind of production method of calcium powder special for MS glue, comprises the following steps:

[0030] Step 1: take each raw material in proportion for subsequent use;

[0031] Step 2: Stir the 600-mesh coarse powder, water, and dispersant evenly (powder: water = 7:3, and the amount of dispersant is 4‰ of the powder) using a stirring device for 20 minutes at high speed, and the stirring speed per minute is not Less than 900 rpm;

[0032] Step 3: Pour the mixed raw materials that have been stirred into the water mill for grinding. The water mill realizes grinding through the feeding part, the discharging part, the turning part, the transmission part (reducer, small transmission gear, motor, electric control), etc.;

[0033] Step 4: Obtain a 2500-3000 mesh fine powder slurry by grinding, and make the solid content reach about 85%, and at the same time mix 1.5‰ of solid calcium powder (stearic acid);

[0034] Step 5: Pour the mixed raw materials into the drum dryer f...

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Abstract

The invention discloses a special calcium powder production material for MS glue and a production method of the special calcium powder production material. The special calcium powder production material is prepared from 700kg of 600-mesh coarse powder, 300kg of water, 2.8 kg of a dispersing agent, solid calcium powder and a silane coupling agent. According to the invention, production water is used as the water, and is subjected to treatment, the main material of the dispersing agent is sodium polyacrylate, the addition amount is 0.4% of that of the powder; the industrial sodium polyacrylate meets the standard of HG / T2838-2010, the standard stipulates that the appearance of the product is colorless to yellow liquid, the solid content is greater than or equal to 30%, in the process, a watermill is used for water grinding, compared with a dry processing method, the produced special active calcium powder for the MS glue is narrow in particle size distribution, the active calcium powder is uniform in particle, the performance of MS glue is improved, the content of fine powder with the particle size smaller than 2 microns is high, the size is large, under the condition of glue with thesame size, the weight is reduced, the applicability is improved, the production cost is reduced, the MS glue prepared from the active calcium powder and a finished product is excellent in thixotropicproperty and has good tensile strength, the applicability is improved, and the service life is prolonged.

Description

technical field [0001] The invention relates to the technical field of production of calcium powder special for MS glue, in particular to a production material for calcium powder special for MS glue and a production method thereof. Background technique [0002] MS glue is a cross-linked polymer based on silane-terminated polyether. MS polymer-based products do not contain silicone components and solvents, and do not contain polyurethane groups. Most formulations are odorless and environmentally friendly. The inherent properties of MS adhesives and sealants Elasticity, can absorb and compensate dynamic load, evenly transmit force, prevent premature fatigue of materials, MS-based materials can achieve bonding between various substrates, and the MS adhesive needs to be combined with active calcium powder to complete production and improve its performance performance. [0003] Existing calcium powder for MS glue is generally processed by dry method. The active calcium powder of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/04C09C3/08C09C3/12C09J171/00C09J11/04
CPCC08K2003/265C09C1/021C09C3/006C09C3/041C09C3/08C09C3/12C09J11/04C09J171/00C08K9/06C08K9/04C08K3/26
Inventor 沈晓峰
Owner 泾县苏皖纳米碳酸钙有限公司
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