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

A protective material, polysiloxane technology, applied in polyurea/polyurethane coatings, epoxy resin coatings, antifouling/underwater coatings, etc., to achieve excellent environmental performance, broad application prospects, excellent mechanical properties and durability Effect

Active Publication Date: 2015-01-28
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 preparat

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

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

[0048] 2) Add dicyclohexylmethanediamine (HMDA) to the reaction kettle, stir and blow in nitrogen;

[0049] 3) Slowly add diethyl maleate dropwise to the reaction kettle and keep the temperature at 35°C; after the dropwise addition is completed, the temperature is raised to 90-100°C and reacted for 12 hours to obtain polyaspartate;

[0050] 4) Into the reactor filled with polyaspartate; continue to slowly add epoxy-terminated polysiloxane dropwise and keep the temperature at 30-40°C; after the dropwise addition, heat up to 60-120°C, and react 8 ~20h, the polyaspartate modified polysiloxane is obtained;

[0051] 5) Weigh out 50 parts of polyaspartate modified polysiloxane, 20 parts of 1,6-hexamethylene diisocyanate, and 5 parts of ten Trifluorooctyltrimetho...

Example Embodiment

[0061] Example 2

[0062] 1) Weigh out 50 parts of 3,3'-dimethyl 4,4'-dicyclohexylmethane diamine, 20 parts of dimethyl maleate, and 20 parts of aminopropyl according to the above weight ratio End-capped polycyanopropyl methylsiloxane and 30 parts of epoxy-terminated polysiloxane for use;

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

[0064] 3) Slowly add dimethyl maleate dropwise to the reaction kettle and keep the temperature at 35°C; after the dropwise addition is completed, the temperature is raised to 90-100°C and reacted for 8-20h to obtain polyaspartate;

[0065] 4) Into the reactor containing polyaspartic acid ester; continue to slowly add aminopropyl-terminated polycyanopropyl methylsiloxane and epoxy-terminated polysiloxane dropwise, and keep the temperature at 30-40 ℃; After the dripping is completed, the temperature is raised to 60~120℃, and the reaction is 8~20h to obtain the polyaspartate modified pol...

Example Embodiment

[0076] Example 3

[0077] 1) Weigh 40 parts of 3,3'-dimethyl 4,4'-dicyclohexylmethane diamine, 30 parts of dimethyl maleate, and 20 parts of aminopropyl-terminated poly Cyanopropyl methylsiloxane and 20 parts of epoxy-terminated polysiloxane, spare;

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

[0079] 3) Slowly add dimethyl maleate dropwise to the reaction kettle and keep the temperature at 30-40°C; after the dropping is completed, the temperature is raised to 90-100°C and reacted for 8-20h to obtain polyaspartate;

[0080] 4) Into the reactor filled with polyaspartate; continue to slowly add aminopropyl-terminated polycyanopropyl methylsiloxane and epoxy-terminated polysiloxane dropwise and keep the temperature at 35°C; After the dropping is completed, the temperature is raised to 60-120°C, and the reaction is conducted for 8-20 hours to obtain the polyaspartate modified polysiloxane;

[0081] 5) Weigh out 45 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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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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