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Flame retardant engravable epoxy resin mortar and preparation method thereof

An epoxy resin and mortar technology, applied in the field of artificial landscaping materials, can solve the problems of high price, poor impact resistance, poor plastering and construction, and achieve the effects of reducing pollution, good smoothness, and reducing construction costs.

Inactive Publication Date: 2015-11-04
CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the production of flame-retardant engraved epoxy resin mortar for domestic landscape is in a blank stage, mainly relying on imports from abroad, so the price is very expensive
Flame-retardant and sculptable epoxy resin mortar is a new material for domestic landscape modeling, especially for large-scale national theme park landscape modeling. The characteristics of high strength and long service time are inconsistent, and the plastering workability is poor
Therefore, there are technologies that have proposed a method for toughening and modifying epoxy resin. There are many ways for epoxy resin to be toughened, such as adding plasticizers or toughening agents to modify it, but in this way , the tensile strength and shear strength of the epoxy resin will decrease, so the overall effect is not ideal; or modified with liquid nitrile rubber, the modified epoxy resin has a significant effect in terms of elasticity and toughening, However, the elastic modulus and glass transition temperature of the modified epoxy resin are much lower, so it is not suitable for use in occasions that require high deformation and temperature, and the smoothness of the application is poor, so it cannot be used as a landscape sculpture.

Method used

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  • Flame retardant engravable epoxy resin mortar and preparation method thereof
  • Flame retardant engravable epoxy resin mortar and preparation method thereof
  • Flame retardant engravable epoxy resin mortar and preparation method thereof

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preparation example Construction

[0033] At the same time, the present invention provides a method for preparing the aforementioned flame-retardant engraved epoxy resin mortar, which includes the following steps:

[0034] a. Modulate the first composition mixture:

[0035] (1) 30-70 parts by weight of epoxy resin and 2-20 parts by weight of active toughening agent are preheated at 50-60 ° C for 1 hour and then added to the mixer;

[0036] (2) Control the agitator at 400-600r / min, sequentially add 1-10 parts by weight of reactive diluent and 0.1-4 parts by weight of thixotropic agent, and then disperse for 10-15 minutes;

[0037] (3) Increase the speed of the agitator to 800-1000r / min, mix 10-50 parts by weight of filler, 0.5-6 parts by weight of hollow microspheres, 5-20 parts by weight of flame retardant, and 0-15 parts by weight of pigment. Add three times, and after all the additions, increase the speed of the agitator to 1500r / min and continue to disperse for 30 minutes to form the first composition mixtu...

Embodiment 1

[0047] First prepare the first composition mixture: 30 parts by weight of epoxy resin and 3 parts by weight of active toughening agent are preheated at 50-60°C for 1 hour, and then added to the mixer. In this embodiment, the epoxy resin is a hydrogenated ring Oxygen resin, the active toughening agent is polyurethane modified epoxy resin. Start stirring, control the speed of the agitator at 400-600r / min, add 5 parts by weight of active diluent and 1 part by weight of thixotropic agent in sequence, and continue to disperse for 10-15 minutes. Then increase the speed of the agitator to 800-1000r / min, mix 42 parts by weight of filler, 15 parts by weight of flame retardant, and 4 parts by weight of hollow microspheres and add them in 3 times. After each feeding, disperse until no dry powder is seen. Then carry out the next feeding, after all the addition, increase the agitator speed to 1500r / min and continue to disperse for 30 minutes.

[0048] Then prepare the second component of ...

Embodiment 2

[0051] First prepare the first composition mixture: 45 parts by weight of epoxy resin and 2 parts by weight of active toughening agent are preheated at 50-60°C for 1 hour, and then added to the stirrer for stirring. In this embodiment, the epoxy resin is double Phenol A ring, active toughening agent is polyurethane modified epoxy resin. Next, the rotational speed of the agitator is controlled at 400-600 r / min, 2 parts by weight of butyl glycidyl ether and 0.5 part by weight of bentonite powder are sequentially added, and the dispersion is continued for 10-15 minutes. Then increase the speed of the agitator to 800-1000r / min, then mix 30 parts by weight of heavy calcium, 20 parts by weight of antimony trioxide, and 0.5 parts by weight of organic silicon hollow resin microspheres and add them to the agitator three times. , after dispersing until no dry powder is seen, proceed to the next feeding. After all the powder is added, increase the rotation speed to 1500r / min and continue...

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Abstract

The invention provides flame retardant engravable epoxy resin mortar. The mortar comprises a first composition mixture and a second composition mixture, wherein the first composition mixture comprises epoxy resin, a reactive diluent, a reactive toughening agent, a first filler, a flame retardant, hollow microspheres, a flame retardant, a thixotropic agent and pigments; the second composition mixture comprises a curing agent, a second filler, hollow microspheres, a thixotropic agent and pigments. The invention also provides a preparation method of the flame retardant engravable epoxy resin mortar comprising the above components. The preparation method comprises the following steps: preparing the first composition mixture, preparing the second composition mixture and mixing the first and second composition mixtures according to a specific proportion, thus obtaining the flame retardant engravable epoxy resin mortar.

Description

【Technical field】 [0001] The invention relates to the field of artificial landscaping materials, in particular to a flame-retardant engraved epoxy resin mortar and a preparation method thereof. 【Background technique】 [0002] At present, the production of flame-retardant engraving epoxy resin mortar for domestic landscape is in a blank stage, and it mainly depends on imports from abroad, so the price is very expensive. Flame-retardant and sculptable epoxy resin mortar is a new material for domestic landscape modeling, especially for large-scale national theme park landscape modeling. The characteristics of high strength and long service time are inconsistent, and the troweling workability is poor. Therefore, there are technologies that have proposed a method for toughening and modifying epoxy resin. There are many ways for epoxy resin to be toughened, such as adding plasticizers or toughening agents to modify it, but in this way , the tensile strength and shear strength of...

Claims

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Application Information

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IPC IPC(8): C08L63/00C08L63/02C08L83/04C08L61/06C08K3/00C08K3/22C08K3/36C08K3/34C08K3/26C08K3/30C08K3/02
Inventor 于钦萍邓宽王炜张剑王波曾昭波陈韦文向波何鸣徐雪萍陈夙刘毅刘睿喆文峰年
Owner CENT RES INST OF BUILDING & CONSTR CO LTD MCC GRP
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