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In-situ Modified PVC Resin and Its Application in Waterproof Membrane

A technology of PVC resin and in-situ modification, which is applied in the field of in-situ modification of PVC resin for waterproofing membranes, and can solve problems such as inability to be lasting and effective.

Active Publication Date: 2021-12-10
湖南阳光路迈新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, the method of adding additives to improve performance is not sustainable and effective

Method used

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  • In-situ Modified PVC Resin and Its Application in Waterproof Membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Situ modified PVC resin, in particular an octamer cage polysilsesquioxane modified PVC resins, preparation method comprising the steps of:

[0019] (A) orthosilicate and tetramethylammonium hydroxide as raw materials, by the sol - gel method, synthesis of the intermediate octamer tetramethylammonium yl cage silsesquioxane, then with dimethyl vinyl chlorosilane and octamer obtained tetramethyl ammonium cage silsesquioxane reaction was performed in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage;

[0020] (B) The step (A) obtained in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage and the vinyl chloride in a molar ratio of 1:40 was added to the reaction vessel, along with water, initiator agents, surface active agents, antioxidants, pH adjusting agent, a suspending agent; and then stirred and mixed uniformly, the mixture was heated to 80 ℃, reaction 2h, remove unreacted monomers and drying it.

[0021] Wherein the initiator of the present embodiment used i...

Embodiment 2

[0024] Situ modified PVC resin, in particular an octamer cage polysilsesquioxane modified PVC resins, preparation method comprising the steps of:

[0025] (A) orthosilicate and tetramethylammonium hydroxide as raw materials, by the sol - gel method, synthesis of the intermediate octamer tetramethylammonium yl cage silsesquioxane, then with dimethyl vinyl chlorosilane and octamer obtained tetramethyl ammonium cage silsesquioxane reaction was performed in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage;

[0026] (B) The step (A) obtained in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage and the vinyl chloride in a molar ratio of 1:35 was added to the reaction vessel, along with water, initiator agents, surface active agents, antioxidants, pH adjusting agent, a suspending agent; and then stirred and mixed uniformly, the mixture was heated to 65 ℃, reaction 4h, removal of unreacted monomers and drying it.

[0027] Wherein the initiator used in the present embodime...

Embodiment 3

[0030] Situ modified PVC resin, in particular an octamer cage polysilsesquioxane modified PVC resins, preparation method comprising the steps of:

[0031] (A) orthosilicate and tetramethylammonium hydroxide as raw materials, by the sol - gel method, synthesis of the intermediate octamer tetramethylammonium yl cage silsesquioxane, then with dimethyl vinyl chlorosilane and octamer obtained tetramethyl ammonium cage silsesquioxane reaction was performed in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage;

[0032] (B) The step (A) obtained in eight of poly (vinyl dimethyl siloxy) silsesquioxane cage and the vinyl chloride in a molar ratio of 1: 20-40 was added to the reaction vessel, along with water , initiators, surfactants, antioxidants, pH adjusting agent, a suspending agent; and then stirred and mixed uniformly, the mixture was heated to 60 ℃, reaction 5h, removal of unreacted monomers and drying it.

[0033] Wherein the initiator used in the present embodiment is the e...

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Abstract

An in-situ modified PVC resin, specifically an octapolycage polysilsesquioxane modified PVC resin, is first synthesized by a sol-gel method using tetramethylammonium hydroxide and ethyl orthosilicate as raw materials The intermediate product octapolytetramethylammonium cage silsesquioxane is then reacted with dimethylvinyl chlorosilane and the obtained octapolytetramethylammonium cage silsesquioxane to obtain octapoly (vinyldimethylsiloxy) cage silsesquioxane; then add it and vinyl chloride into the reaction vessel at a molar ratio of 1:20‑40, and add water, initiator, surfactant, Antioxidant, pH adjuster, suspending agent; then stir and mix evenly, heat the mixture to 60-80°C, react for 1-5h, remove unreacted monomers and dry. By in-situ modification of PVC resin, applying it to extruded PVC waterproof membrane can significantly improve the anti-aging performance, longitudinal / transverse tensile strain performance and anti-seepage performance of the waterproof membrane.

Description

Technical field [0001] The present invention belongs to the field of waterproofing resin, particularly relates to a waterproof membrane in situ modified PVC resins. Background technique [0002] Waterproofing membrane is mainly used for location of the building walls, roofs, roads, tunnels, underground pipelines, landfills, etc., play a role in enhancing the building waterproofing, barrier properties, it is the first road construction project in the waterproof job , has a vital role in the entire building project. Currently, commonly divided into three categories waterproofing membrane, waterproof coatings, modified bitumen membrane, polymer waterproofing membrane. Wherein the waterproof coating and modified bitumen waterproof membrane used for body building, polymer waterproofing membrane surface used for building waterproofing. [0003] For polymers used in construction for waterproofing the surface of the object, it is the most commonly used PVC waterproofing membrane. PVC wat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F114/06C08F2/44C08L27/06C08L83/07C08L83/04C08L23/28C08L91/06C08K13/02C08K3/22C08K5/09C08K5/13C08K5/3475C08G77/20
CPCC08F114/06C08F2/44C08L27/06C08G77/045C08G77/20C08L2201/08C08L2205/035C08L2205/06C08L2205/025C08K2201/011C08K2003/2241C08L83/04C08L23/286C08K13/02C08K3/22C08K5/13C08K5/3475C08L91/06C08K5/09
Inventor 刘金英
Owner 湖南阳光路迈新材料有限公司