Polyurea-polysiloxane organic-inorganic hybrid concrete biological pollution protection material and preparation method thereof

A protective material, polysiloxane technology, used in epoxy resin coatings, antifouling/underwater coatings, biocide-containing paints, etc., to achieve low surface energy characteristics, good coordination performance, and prevent biological pollution.

Active Publication Date: 2016-08-17
WUHAN CHANGJIANG KECHUANG TECH DEV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, at present, there is no simple, effective and environmentally friendly material and preparation method that can effectively prevent concrete erosion and inhibit the growth of freshwater shellfish on it.

Method used

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  • Polyurea-polysiloxane organic-inorganic hybrid concrete biological pollution protection material and preparation method thereof
  • Polyurea-polysiloxane organic-inorganic hybrid concrete biological pollution protection material and preparation method thereof
  • Polyurea-polysiloxane organic-inorganic hybrid concrete biological pollution protection material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1) Take by weighing 30 parts of dicyclohexylmethanediamine (HMDA), 40 parts of diethyl maleate and 30 parts of epoxy-terminated polysiloxane according to the above weight and number ratio, and set aside;

[0048] 2) Add dicyclohexylmethanediamine (HMDA) into the reactor, stir and feed nitrogen;

[0049] 3) Slowly add diethyl maleate dropwise into the reaction kettle, and keep the temperature at 35°C; after the dropwise addition, raise the temperature to 90-100°C, and react for 12 hours to obtain polyaspartic acid ester;

[0050] 4) Into the reaction kettle equipped with polyaspartic acid ester; continue to slowly add epoxy-terminated polysiloxane dropwise, and keep the temperature at 30-40°C; ~20h, to obtain polyaspartic acid ester modified polysiloxane;

[0051] 5) Take by weighing 50 parts of polyaspartate modified polysiloxane, 20 parts of 1,6-hexamethylene diisocyanate, 5 parts of ten Trifluorooctyltrimethoxysilane, 5 parts of nano-scale silver particles, 1 part o...

Embodiment 2

[0062] 1) Weigh 50 parts of 3,3'-dimethyl 4,4'-dicyclohexylmethanediamine, 20 parts of dimethyl maleate, 20 parts of aminopropyl End-blocked polycyanopropyl methylsiloxane and 30 parts of end-epoxy polysiloxanes, standby;

[0063] 2) Add 3,3'-dimethyl 4,4'-dicyclohexylmethanediamine into the reaction kettle, stir and feed nitrogen;

[0064] 3) Slowly add dimethyl maleate dropwise to the reactor, and keep the temperature at 35°C; after the dropwise addition, raise the temperature to 90-100°C, and react for 8-20 hours to obtain polyaspartic acid ester;

[0065] 4) Into the reaction kettle equipped with polyaspartic acid ester; continue to slowly add aminopropyl-terminated polycyanopropylmethylsiloxane and epoxy-terminated polysiloxane dropwise, and keep the temperature at 30-40 °C; after the dropwise addition, raise the temperature to 60-120 °C, and react for 8-20 hours to obtain polyaspartate-modified polysiloxane;

[0066] 5) Take by weighing 45 parts of polyaspartic acid es...

Embodiment 3

[0077] 1) Weigh 40 parts of 3,3'-dimethyl 4,4'-dicyclohexylmethanediamine, 30 parts of dimethyl maleate, 20 parts of Cyanopropylmethyl siloxane and 20 parts of epoxy-terminated polysiloxanes, standby;

[0078] 2) Add 3,3'-dimethyl 4,4'-dicyclohexylmethanediamine into the reaction kettle, stir and feed nitrogen;

[0079] 3) Slowly add dimethyl maleate dropwise to the reactor, and keep the temperature at 30-40°C; after the dropwise addition, raise the temperature to 90-100°C, and react for 8-20 hours to obtain polyaspartic acid ester;

[0080] 4) Into the reaction kettle equipped with polyaspartate; continue to slowly add aminopropyl-terminated polycyanopropylmethylsiloxane and epoxy-terminated polysiloxane dropwise, and keep the temperature at 35°C; After the dropwise addition, raise the temperature to 60-120°C and react for 8-20 hours to obtain polyaspartate-modified polysiloxane;

[0081] 5) Take by weighing 45 parts of polyaspartic acid ester modified polysiloxane, 30 part...

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Abstract

The invention discloses a polyurea-polysiloxane organic-inorganic hybridized concrete biological pollution protection material and a preparation method thereof. The pollution protection material is composed of a surface protection material and a base protection material, wherein the surface protection material is composed of the following raw materials in parts by weight: polyaspartic acid ester modified polysiloxane, modified isocyanate, a biological growth inhibitor, a catalyst, a coupling agent, an anti-ageing agent, a filler and pigment; the base protection material is composed of the following raw materials in parts by weight: modified epoxy resin, an epoxy curing agent, an reactive diluent, a coupling agent, an anti-ageing agent and a filler. The pollution protection material is excellent in biological pollution imitation performance, has the characteristic of low surface energy and can prevent biofouling. Special elements in structure interior of the material can inhibit growth of ocean and fresh water creatures, thereby achieving the aim of preventing biological pollution.

Description

technical field [0001] The invention relates to the field of biological pollution protection materials, in particular to a polyurea-polysiloxane organic-inorganic hybrid concrete biological pollution protection material and a preparation method thereof. Background technique [0002] According to statistics, by the end of 2012, my country had built 31 pumped storage power stations and 23 pumped storage power stations under construction. In particular, the southern power station accounts for a considerable part, and the Ca(OH) in the concrete in the diversion tunnel of these pumped storage power stations 2 HCO in reservoir water 3 CO produced by decomposition 2 The dissolution effect of cement causes the decomposition of cement hydration products, reduces the surface strength, and peels off under the action of pressure dynamic water. At the same time, CO 2 Secondary attack on the aggregate of spalled concrete. In addition, a large amount of freshwater shellfish is produced...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/02C09D183/04C09D163/00C09D5/14C09D7/12C08G81/00C08G73/10C04B41/52
CPCC04B41/522C08G81/00C08K3/04C08K3/08C08K3/22C08K3/26C08K3/36C08K5/06C08K5/18C08K13/02C08K2003/0806C08K2003/2241C08K2003/2272C08K2003/265C09D5/14C09D7/61C09D163/00C09D175/02
Inventor 韩炜李珍邵晓妹汪在芹甘国权尹作仿景锋苏强刘校郑卫邝亚力
Owner WUHAN CHANGJIANG KECHUANG TECH DEV
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