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Green reinforced polymer material

A polymer and environment-friendly technology, applied in the field of environment-friendly polymer rebar planting materials, can solve problems such as pollution and long construction period, and achieve the effects of good structure, short curing time and low curing temperature

Inactive Publication Date: 2007-12-19
上海世鹏聚氨酯科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the long construction period of the traditional inorganic material pouring method, to prevent the steel bar from corroding and affecting the life of the building due to the capillary phenomenon of the concrete material itself infiltrating into water; the organic resin pouring method pollutes the environment, is resistant to Due to technical deficiencies such as temperature difference, it provides a non-volatile organic solvent such as benzene, formaldehyde, and non-toxic substances; it has excellent bonding performance with reinforced concrete, high tensile strength, cold resistance and low temperature resistance, shock absorption and buffering, and good structure. Environmentally friendly polymer material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Preparation of hydroxyl-terminated prepolymer

[0047] Put 75 parts by weight of hydroxyl-terminated polyether polyol (functionality 2-3) in the reactor, stir and heat to 80-90°C, add 8 parts by weight of diphenylmethane diisocyanate (functionality 2-3) 2.1) Insulate and stir the reaction for 0.5 to 1 hour until the reaction is complete, then cool to normal temperature.

[0048] 2. Preparation of component A

[0049] Take 20 parts by weight of the hydroxyl-terminated prepolymer prepared in the above step 1 and put it into a stirrer, add 15 parts by weight of hydroxyl-terminated polyol (functionality 2 to 4), 18 parts by weight of castor oil, diisophthalic acid 7 parts by weight of octyl ester, 40 parts by weight of calcium carbonate, 20 parts by weight of quartz sand, 0.04 part by weight of catalyst, and 0.02 part by weight of antioxidant, heated and stirred for 1 to 2 hours.

[0050] The above prepared component A reacts with 20 parts by weight of the isocyanate c...

Embodiment 2

[0052] Preparation of component A:

[0053] Take 30 parts by weight of the hydroxyl-terminated prepolymer prepared in the step of Example 1 above and put it into a stirrer, add 17 parts by weight of a hydroxyl-terminated polyol (functionality 2 to 4), 10 parts by weight of castor oil, and phthalic acid 3 parts by weight of diisooctyl ester, 40 parts by weight of calcium carbonate, 20 parts by weight of quartz sand, 0.04 parts by weight of catalyst, and 0.02 parts by weight of antioxidant, heated and stirred for 1 to 2 hours.

[0054] The above prepared component A reacts with 18.5 parts by weight of the isocyanate crosslinking agent of component B to obtain the environment-friendly polymer reinforcement material of the present invention.

Embodiment 3

[0056] Preparation of component A:

[0057] Take 40 parts by weight of the hydroxyl-terminated prepolymer prepared in the step of Example 1 above and put it into a stirrer, add 20 parts by weight of a hydroxyl-terminated polyol (functionality 2 to 4), 6 parts by weight of castor oil, and phthalic acid 4 parts by weight of diisooctyl ester, 35 parts by weight of calcium carbonate, 15 parts by weight of quartz sand, 0.04 parts by weight of catalyst, and 0.02 parts by weight of antioxidant, heated and stirred for 1 to 2 hours.

[0058] The above prepared component A reacts with 18 parts by weight of the isocyanate crosslinking agent of component B to obtain the environment-friendly polymer reinforcement material of the present invention.

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PUM

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Abstract

The green reinforcing polymer material includes one component A and one component B. The component A consists of hydroxyl-terminated prepolymer of polyester or polyether type polyurethane 20-60 weight portions, hydroxyl-terminated polyester or polyether type polyol 5-20 weight portions, vegetable oil 5-20 weight portions, plasticizer 0-10 weight portions, stuffing 30-60 weight portions, catalyst 0.01-1 weight portion, and antioxidant 0.01-0.5 weight portion; and the component B is isocyanate as cross-linking agent in 10-20 weight portions. The present invention is used as reinforcing agent or concrete repairing agent, and has the advantages of no toxicity, no volatile organic solvent, high strength, high weather resistance, etc.

Description

technical field [0001] The invention relates to an environment-friendly polymer planting bar material. It is widely used in projects where steel bars are planted in concrete, and can also be used as a repair material for reinforced concrete. Background technique [0002] In traditional reinforcement planting, the following two methods are usually adopted: [0003] 1. Inorganic material pouring planting method; [0004] 2. Organic resin casting method containing volatile organic solvents. [0005] The disadvantages of the above two methods are: the inorganic material pouring and planting method has a long construction period, and due to the capillary phenomenon of the concrete material itself, it is easy to make water seep in, corrode the steel bars, and affect the life of the building; use organic resin containing volatile organic solvents to pour Because of the volatilization of organic solvents, unpleasant pungent odors are produced, which is very harmful to the environ...

Claims

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Application Information

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IPC IPC(8): C08L75/06C08G18/32C08G18/76C08L91/00
Inventor 孙寿松孙寿彬
Owner 上海世鹏聚氨酯科技发展有限公司
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