Epoxy resin-based mineral casting and preparation method thereof

A technology of epoxy resin and mineral castings, applied in the field of mineral castings for machinery, can solve the problems of poor product quality and physical properties, limit the application of mineral castings, etc., achieve excellent physical and mechanical properties, improve physical and mechanical properties, and high compressive strength Effect

Inactive Publication Date: 2021-09-03
山东纳诺新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current aggregate molding process is simple, resulting in poor product quality and physical properties, which limits the application of mineral castings in machinery

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] An epoxy resin based mineral casting consisting of:

[0042] Aggregate 86kg, binder 8kg, filler 5kg, reinforcing agent 1kg; the total amount of all components is 100kg.

[0043] The preparation method of above-mentioned epoxy resin-based mineral casting, concrete process is as follows:

[0044] (1) Preparation of adhesive:

[0045] S1, preparation of epoxy resin: heat E51 type epoxy resin and F51 type epoxy resin at 80°C to a constant temperature, then mix them evenly according to the ratio of mass ratio 8:2, and fill them for use;

[0046] S2, preparation of curing agent: mix isophorone diamine and polyether amine D230 evenly according to the mass ratio of 2:1, and fill the equipment for use;

[0047] (2) Preparation of aggregate particles:

[0048] The natural granite is crushed and sieved, divided into 6 grades according to particle diameter, and graded according to the following ratio:

[0049] 0.1-1mm: 11%; 1-2mm: 12%; 2-4mm: 14%; 4-8mm: 18%; 8-14mm: 20%; 14-25...

Embodiment 2

[0058] An epoxy resin based mineral casting consisting of:

[0059] Aggregate 85kg, binder 9kg, filler 5kg, reinforcing agent 1kg; the total amount of all components is 100kg.

[0060] The preparation method of above-mentioned epoxy resin-based mineral casting, concrete process is as follows:

[0061] (1) preparation of adhesive: same as embodiment 1;

[0062] (2) Preparation of aggregate particles:

[0063] The marble is crushed and sieved, divided into 6 grades according to particle diameter, and graded according to the following ratio:

[0064] 0.1-1mm: 10%; 1-2mm: 10%; 2-4mm: 15%; 4-8mm: 20%; 8-14mm: 20%; 14-25mm: 25%;

[0065] The marble is a waste material of a stone processing enterprise, and aggregates are obtained by mixing the graded particles;

[0066] Clean the aggregate, dry it with hot air at 200°C until the moisture content is less than 0.1%, then weigh the dried aggregate according to the formula and place it in the stirring device;

[0067] (3) After stir...

Embodiment 3

[0073] An epoxy resin based mineral casting consisting of:

[0074] Aggregate 88kg, binder 7kg, filler 4kg, reinforcing agent 1kg; the total amount of all components is 100kg.

[0075] The preparation method of above-mentioned epoxy resin-based mineral casting, concrete process is as follows:

[0076] (1) preparation of adhesive: same as embodiment 1;

[0077] (2) Preparation of aggregate particles:

[0078] The marble is crushed and sieved, divided into 6 grades according to particle diameter, and graded according to the following ratio:

[0079] 0.1-1mm: 12%; 1-2mm: 12%; 2-4mm: 14%; 4-8mm: 19%; 8-14mm: 19%; 14-25mm: 24%;

[0080] The marble is a waste material of a stone processing enterprise, and aggregates are obtained by mixing the graded particles;

[0081] Clean the aggregate, dry it with hot air at 200°C until the moisture content is less than 0.1%, then weigh the dried aggregate according to the formula and place it in the stirring device;

[0082] (3) After stir...

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Abstract

The invention provides an epoxy resin-based mineral casting and a preparation method thereof. The mineral casting comprises 85-88 parts of aggregate, 7-9 parts of an adhesive, 4-5 parts of a filler and 1 part of an auxiliary agent, the total amount of all the components is 100 parts. The adhesive comprises epoxy resin and a curing agent. The preparation method comprises the following steps: (1) s1, preparing epoxy resin; s2, preparing the curing agent; (2) preparing aggregate particles; (3) sequentially adding a reinforcing agent and a filling material into a stirring device to obtain a mixture A; (4) weighing the s1 and the s2 according to the formula weight to obtain the adhesive; adding an adhesive into the mixture A to obtain a mixture B; (5) compacting the mixture B by high-frequency vibration to obtain a primary product; and (6) heating and curing the primary product, opening a mold and cooling to obtain a finished product. The compressive strength of the mineral casting reaches 160-180 MPa, and the elastic modulus of compression reaches 40-55 GPa; the preparation method is simple, easy to control and suitable for wide popularization and application.

Description

technical field [0001] The invention relates to the technical field of mineral castings for machinery, in particular to an epoxy resin-based mineral casting and a preparation method. Background technique [0002] Mineral castings are the product of mineral castings, which can be used as structural parts of machines. During the production of mineral castings, epoxy resin and curing agent are usually used as binders to bond raw materials such as aggregates to form mineral castings. [0003] Aggregate substrates play an important role as structural material for mineral castings. The current simple aggregate forming process leads to poor product quality and physical properties, which limits the application of mineral castings in machinery. [0004] With the enhancement of people's awareness of environmental protection, mineral castings have been paid more and more attention as an environmentally friendly material. Mechanical strength is an important indicator of mineral castin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B26/14
CPCC04B26/14C04B2201/50C04B14/048C04B14/06C04B24/40C04B24/121C04B24/32
Inventor 周正东公茂利
Owner 山东纳诺新材料科技有限公司
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