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Ageing-resisting anti-abrasion ceramic composite material special for hydraulic architecture

A ceramic composite material and hydraulic construction technology, which is applied in the anti-abrasion ceramic composite material and special anti-aging field of hydraulic construction, to achieve the effect of high material strength, strong toughness, increased strength and anti-abrasion performance

Inactive Publication Date: 2019-05-14
CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patented technology describes an improvement made over existing materials called silicon reinforced plastic (SiP) composites because they have excellent mechanical characteristics such as hardness, wearability, and tear resistance compared to traditional methods like cement or steel bars. They also allow for mixing them together at various ratios depending upon their desired applications. By adding specific types of fibers into SiPPs instead of other chemical substances, these new materials become more durable without losing elastomeric behavior during long term usage under heavy loadings.

Problems solved by technology

Technological Problem addressed in this Patents relating to improving the durable properties of hydrous structures made from rubbers or elastomers while maintaining their stability against environmental factors like moisture ingress. Existing methods involve adding various chemical agents to enhance these characteristics, but they cannot achieve desired levels due to interference caused by other substances present at certain points along the pathway through which the liquid flows.

Method used

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  • Ageing-resisting anti-abrasion ceramic composite material special for hydraulic architecture

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The preparation of an anti-aging and abrasion-resistant composite material for hydraulic construction comprises the following steps:

[0036] Add 88.89g IPDI to the reaction vessel and pass into nitrogen protection, add 80g PEG400 dropwise to the reaction vessel, heat up to 30°C for reaction under stirring conditions, and continue stirring for 6h to synthesize the isocyanate group-terminated polyurethane prepolymer; The isocyanate-terminated polyurethane prepolymer continues to be protected by nitrogen gas, and the temperature is controlled at 25°C. Add 29.63g of glycidol dropwise to the reaction vessel, stir for 1 hour after the dropwise addition, and then raise the temperature to 80°C for 1 hour to prepare a polyurethane epoxy resin Standby; take 50g of polyurethane epoxy resin, 100g of unmodified epoxy resin, 20g of 2mm quartz sand, 20g of silicon carbide with a particle size of 500μm, 35g of silicon nitride with a particle size of 1μm, 15g of carbon nanotubes with a ...

Embodiment 2

[0038] The preparation of an anti-aging and abrasion-resistant composite material for hydraulic construction comprises the following steps:

[0039] Add 111.14g IPDI to the reaction vessel and pass into nitrogen protection, add 450g PPG1000 dropwise to the reaction vessel, heat up to 80°C for reaction under stirring conditions, continue stirring for 1h, and synthesize isocyanate group-terminated polyurethane prepolymer; The isocyanate-terminated polyurethane prepolymer was cooled down to 30°C under the protection of nitrogen, and 3.70g of glycidol was added dropwise to the reaction vessel. After the dropwise addition, the stirring was continued for 6 hours, and the temperature was raised to 50°C for 3 hours to prepare a polyurethane epoxy resin. Standby; weigh 200g of polyurethane epoxy resin, 100g of unmodified epoxy resin, 60g of 1mm quartz sand, 40g of silicon carbide with a particle size of 300μm, 40g of silicon nitride with a particle size of 200μm, 40g of boron nitride wi...

Embodiment 3

[0041] The preparation of an anti-aging and abrasion-resistant composite material for hydraulic construction comprises the following steps:

[0042] Add 222.29g IPDI to the reaction vessel and pass it under nitrogen protection, add 1600gPTMG2000 dropwise to the reaction vessel, raise the temperature to 60°C under stirring conditions, and continue stirring for 4h to synthesize the isocyanate group-terminated polyurethane prepolymer; The isocyanate-based polyurethane prepolymer was cooled to 40°C under the protection of nitrogen, and 29.63g of glycidol was added dropwise to the reaction vessel, stirred for 1 hour after the dropwise addition, and then heated to 60°C for 4 hours to prepare a polyurethane epoxy resin for use; Take 500g of polyurethane-type epoxy resin, 100g of epoxy resin, 100g of silicon carbide with a particle size of 500 μm, 40g of silicon nitride with a particle size of 500 μm, 40g of boron nitride with a particle size of 500 μm, 105g of aluminum oxide with a pa...

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Abstract

The invention provides an ageing-resisting anti-abrasion ceramic composite material special for a hydraulic architecture. The ageing-resisting anti-abrasion ceramic composite material is prepared by the following steps: (1) firstly synthesizing polyurethane-type epoxy resin, synthesizing isocyanate-group-terminated polyurethane prepolymer by using isocyanate and polyhydric alcohol, dropwise addingan epoxy compound containing a hydroxyl to the prepared polyurethane prepolymer, and preparing polyurethane-type epoxy resin; (2) enabling high-strength fibers to be compounded with grading superhardparticle filler, preparing fiber/grading superhard particle compound filler; and (3) enabling the polyurethane-type epoxy resin prepared in the step (1) to be mixed with unmodified epoxy resin according to a proportion, adding the fiber/grading superhard particle compound filler, an active diluent and a defoamer, after uniformly stirring, adding a suitable amount of a curing agent, and preparingthe ageing-resisting anti-abrasion polyurethane-type epoxy resin/ceramic composite material. The prepared polyurethane-type epoxy resin/ceramic composite material is simple in preparation process without using a solvent, and has better ageing resistance, abrasion resistance and impact resistance.

Description

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Claims

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Application Information

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Owner CHINA HYDROPOWER ELEVENTH ENG BUREAU ZHENGZHOU CO LTD
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