Polyester-resin-based cement material

A technology of polyester resin and cement materials, which is applied in the field of building materials, can solve problems such as poor mechanical properties, and achieve the effects of good steric hindrance effect, reduced force, and increased ratio

Inactive Publication Date: 2018-07-27
朱东洋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: aiming at the problem of poor mechanical properties of traditional polyester resin-based cement materials, a polyester resin-based cement material is provided

Method used

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  • Polyester-resin-based cement material

Examples

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Effect test

example 1

[0034] In parts by weight, 120 parts of polyethylene terephthalate, 5 parts of acetic anhydride, and 6 parts of pyridine were sequentially added to the No. 1 three-necked flask, and nitrogen was introduced into the three-necked flask at a rate of 10 mL / min. Under nitrogen protection, at a temperature of 205°C and a speed of 500r / min, the reaction was heated and stirred for 7h to obtain the alcoholysis product, and then the alcoholysis product, maleic acid was obtained in a mass ratio of 10:3:1:1 The acid anhydride, cottonseed oil and linoleic acid were put into a No. 2 three-necked flask, heated and stirred for 6 hours at a temperature of 210°C and a speed of 400r / min, and discharged to obtain an unsaturated polyester resin; in parts by weight, Take 50 parts of unsaturated polyester resin, 30 parts of styrene, 6 parts of emulsifier, 25 parts of water, 80 parts of cement, 200 parts of aggregate, 4 parts of water reducing agent, 15 parts of caprolactam, 10 parts of polyacrylamide,...

example 2

[0036] In parts by weight, 120 parts of polyethylene terephthalate, 5 parts of acetic anhydride, and 6 parts of pyridine were sequentially added to the No. 1 three-necked flask, and nitrogen was introduced into the three-necked flask at a rate of 10 mL / min. Under nitrogen protection, at a temperature of 205°C and a rotation speed of 500r / min, the reaction was heated and stirred for 7 hours to obtain the alcoholysis product, and then the alcoholysis product and maleic anhydride were added to No. 2 in a mass ratio of 10:3 In a three-necked flask, under the conditions of a temperature of 210°C and a rotation speed of 400r / min, the reaction was heated and stirred for 6h, and the material was discharged to obtain an unsaturated polyester resin; in parts by weight, take 50 parts of the unsaturated polyester resin, 30 Parts of styrene, 6 parts of emulsifier, 25 parts of water, 80 parts of cement, 200 parts of aggregate, 4 parts of water reducing agent, 15 parts of caprolactam, 10 parts...

example 3

[0038] In parts by weight, 120 parts of polyethylene terephthalate, 5 parts of acetic anhydride, and 6 parts of pyridine were sequentially added to the No. 1 three-necked flask, and nitrogen was introduced into the three-necked flask at a rate of 10 mL / min. Under nitrogen protection, at a temperature of 205°C and a rotation speed of 500r / min, the reaction was heated and stirred for 7 hours to obtain the alcoholysis product, and then the alcoholysis product, maleic anhydride, was obtained in a mass ratio of 10:3:1. The cottonseed oil was added to the No. 2 three-necked flask, heated and stirred for 6 hours at a temperature of 210°C and a rotating speed of 400r / min, and discharged to obtain an unsaturated polyester resin; in parts by weight, take 50 parts of unsaturated polyester resin in turn. Polyester resin, 30 parts styrene, 6 parts emulsifier, 25 parts water, 80 parts cement, 200 parts aggregate, 4 parts water reducing agent, 15 parts caprolactam, 10 parts polyacrylamide, 10 ...

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Abstract

The invention discloses a polyester-resin-based cement material, belonging to the technical field of building materials. The polyester-resin-based cement material developed by the invention is composed of an unsaturated polyester resin, styrene, an emulsifier, water, cement, aggregate, a water reducer, caprolactam, polyacrylamide and a curing agent. The preparation process comprises the followingsteps: stirring and mixing the unsaturated polyester resin and styrene, adding the emulsifier and water, and performing shearing and dispersion to obtain a polyester emulsion; and stirring and mixingthe polyester emulsion, cement, aggregate, water reducer and caprolactam, adding the curing agent, continuing stirring and mixing, performing injection molding, curing and demolding, performing high-pressure steam curing for 8-12 hours, and performing natural curing in air for 28 days to obtain the polyester-resin-based cement material. The polyester-resin-based cement material obtained in the invention has excellent mechanical properties.

Description

Technical field [0001] The invention discloses a polyester resin-based cement material, which belongs to the technical field of building materials. Background technique [0002] Polymer-modified cement concrete (PMC for short) is much better than traditional concrete in terms of corrosion resistance, curing speed and main mechanical properties. It is often an ideal material in ground and road engineering, repair engineering and structural engineering. [0003] Research on polymer cement concrete is underway. Relevant units have studied the properties of cement mortar mixed with natural rubber latex, styrene butadiene rubber latex, neoprene latex, vinyl chloride latex, acrylic copolymer emulsion, etc. Some of them have been used in engineering. Compared with ordinary mortar, the above polymer cement mortar has improved crack resistance, cohesiveness, impermeability, etc., but the strength is generally not improved much, and the curing time is relatively long. Some researchers have...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/28C08G63/91C04B24/12
CPCC04B24/283C04B28/04C04B2201/50C08G63/916C04B24/00C04B24/2652C04B24/128C04B24/008C04B14/068C04B24/18C04B24/20
Inventor 朱东洋许永博张淼
Owner 朱东洋
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