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a caulking agent

A technology of beautifying agent and curing agent, applied in the field of beautifying agent, which can solve the problems of poor weather resistance, poor UV resistance of aromatic ring structure, easy yellowing, etc.

Active Publication Date: 2021-05-14
SHENZHEN FEIYANG JUNYAN TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] First, poor weather resistance
From the perspective of molecular structure, the aromatic ring structure of epoxy resin has poor UV resistance and poor flexibility.
The plasticizer toughening method currently used can only be effective in the short term. With the migration of the plasticizer, the rubber strip is easy to age and crack, causing local strips to fall off, especially when the sun can be exposed and the temperature difference changes. Larger places, such as near the window sill, balcony, hotel lobby near the glass door, under the skylight of a commercial complex, etc., have a service life of only 2-3 years
[0005] Secondly, the yellowing resistance is very poor
The beautifying agent is usually made into white, silver gray and other light colors to have an aesthetic effect. After a period of use, it is prone to yellowing, which affects the decorative effect and appearance. It is not suitable for high-quality decorative applications.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A kind of seam agent: comprising the following parts by weight component A:

[0052]

[0053] The following parts by weight component B:

[0054]

[0055] Wherein: the prepolymer is made from 7g of HDI, 33g of HMDI, and 60g of polyhydroxyisoprene adipate (molecular weight: 2000, hydroxyl value: 56mgKOH / g), and the NCO% in the prepolymer: 11.5.

Embodiment 2

[0057] Beauty seam agent: including the following parts by weight component A:

[0058]

[0059]

[0060] The following parts by weight component B:

[0061]

[0062] Wherein: the prepolymer is composed of 7g of HDI, 35g of HMDI, and 58g of poly-terminated hydroxymethylpropanediol adipate (molecular weight: 1000, hydroxyl value: 112mgKOH / g); NCO% in the prepolymer: 11.8.

Embodiment 3

[0064] Beauty seam agent: including the following parts by weight component A:

[0065]

[0066] Following parts by weight component B:

[0067]

[0068] Wherein: the prepolymer is composed of 9g of HDI, 38g of HMDI, and 58g of poly-terminated hydroxymethylpropanediol adipate (molecular weight: 1000, hydroxyl value: 112mgKOH / g); NCO% in the prepolymer: 12.1.

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Abstract

The invention discloses a beautifying agent and relates to the technical field of caulking agents. The beauty joint agent provided by the embodiment of the present invention reacts an aliphatic isocyanate curing agent and an aspartic acid ester resin to obtain a two-component polyurea beauty joint material. Aspartic acid ester resin has good resistance to yellowing and discoloration, and it can react with aliphatic isocyanate to form polyurea polymer, and urea itself has high strength and toughness, and good resistance to UV aging and yellowing. Therefore, the obtained joint agent has good weather resistance, aging resistance and yellowing resistance.

Description

technical field [0001] The invention relates to the technical field of caulking agents, in particular to a beautifying caulking agent. Background technique [0002] With the rapid development of real estate in the past 30 years, the housing decoration market has been thriving, and various decoration materials and decoration techniques have been constantly updated, with increasingly high efficiency and high quality. Among them, as a tile grouting material, it has undergone an upgrade from inorganic white cement, rubber powder tile grouting agent (also called grouting agent) to epoxy beautifying grouting agent. The main components of the caulking agent are cement, calcium carbonate powder, talc powder and rubber powder, etc., which are prone to blackening, mildew, bacteria breeding, and the color is monotonous, and the waterproof effect is poor. Mildew, anti-scratch, rich colors and other advantages are becoming more and more popular among the public. Epoxy grout is widely us...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/02C09D7/43
CPCC09D175/02C09D7/43C08K3/36
Inventor 薛隽王海波赵粕利朱龙晖鲁晓东
Owner SHENZHEN FEIYANG JUNYAN TECH DEV
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