Epoxy mould material for ceramic forming and its preparation method

An epoxy resin and mold material technology, applied in the field of ceramic industry, can solve the problems of unsuitable molding, such as depressions, side slopes or small holes, open porosity, difficult to control pore size, complicated thermal process control, etc. Short molding cycle, no drying, and high surface finish

Inactive Publication Date: 2007-05-16
QILU UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The control of the thermal process is complicated, and the porosity and pore size are difficult to control
[0006] (2) It is not suitable for forming complex products with depressions, side slopes or small holes, etc.
[0007] (3) Due to the high viscosity of the general molding material melt, there is a problem in completely filling the mold
[0008] (4) It is difficult to form products with high dimensional accura

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Add 50 grams of E-51, 100 grams of glass beads, 0.1 grams of OP emulsifier, 0.15 grams of Tween 80 emulsifier, 0.05 grams of Spane 60 emulsifier, and 18 grams of T31 curing agent into a stainless steel container with an inner diameter of 10 cm and a height of 20 cm. , fully mixed under slow stirring, then added 60 grams of tap water, and stirred with a stirrer with an outer diameter of 8 blades at a speed of 400-500 for 20 minutes to obtain a W / O dispersion, and poured the material into an impermeable In a plastic mold, keep the temperature at 70°C for 8 hours, then raise the temperature to 120°C for post-curing for 2 hours.

Embodiment 2

[0042] Add 50 grams of E-51, 20 grams of quartz powder, 5 grams of glass beads, 1 gram of OP emulsifier, 1 gram of Tween 80 emulsifier, 1 gram of Span 60 emulsifier, 10 grams of T31 curing agent, 20 grams of polyamide 650 curing agent, fully mixed under slow stirring, then add 80 grams of tap water, and stir for 20 minutes with a stirrer with a paddle outer diameter of 8 at a speed of 500 to obtain W / For O-based dispersion, pour the material into a water-tight plastic mold, keep it warm at 70°C for 6 hours, then raise the temperature to 110°C for post-curing for 2 hours.

Embodiment 3

[0044] Add 25 grams of E-51, 25 grams of E-44, 150 grams of quartz powder, 0.5 grams of white carbon black, 1 gram of Tween 80 emulsifier, 0.5 grams of Siban 60 emulsifier, 9.5 grams of polyamide 650 curing agent, 0.5 grams of DMP-30 curing agent accelerator, fully mixed under slow stirring, then add 80 grams of tap water, and stir for 15 minutes with a stirrer with a blade outer diameter of 8 at 400 revolutions , to obtain a W / O dispersion, pour the material into a water-tight plastic mold, keep it warm at 70°C for 3 hours, and then raise the temperature to 110°C for post-curing for 3 hours.

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PUM

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Abstract

The invention discloses a preparing method of porous mould through heating W/O typed aqueous dispersion, which comprises the following parts: 100 parts of liquid epoxide resin, 40-70 parts of hardener, 5-10 parts of surface activator with non-ionic typed surface activator with multiple HLB values, 200-350 parts of filler with silica and glass microball, 3-5 parts of white carbon black and 80-140 parts of water.

Description

technical field [0001] The invention belongs to the field of ceramic industry and relates to a preparation method of a continuous porous mold. This mold material can also be used as other filter materials. Background technique [0002] Plaster molds are traditional molds used in the ceramic industry for a long time. The strength of gypsum is too poor and easy to be damaged. The thickness of ordinary plaster molds is relatively thick, generally around 65-90mm, and large-scale ceramic products are even thicker, which wastes gypsum and at the same time It pollutes the environment again, and it is difficult to carry in addition, which increases the labor intensity of the workman, and is not easy to dry, and the efficiency is low. The weakness of low strength, short service life and poor quality of plaster molds also restricts the development of ceramic products in the direction of high quality and high efficiency. [0003] Developing new mold materials and making molds that ca...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08K7/20B28B7/34B01D39/00C08K3/36C08K5/00
Inventor 姚金水武光
Owner QILU UNIV OF TECH
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