Four-component silane modified sealant as well as preparation and use methods thereof

A silane-modified, four-component technology, applied in adhesives, adhesive types, polyurea/polyurethane adhesives, etc., can solve problems such as poor paintability, achieve long service life, reliable and durable sealing and protection performance, Optimize the effect of comprehensive cost performance

Active Publication Date: 2018-10-02
XUZHOU ZHONGKUANG ANFENG ENG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This product also introduces alkyl phosphate insoluble in water and aliphatic hydrocarbons through formula design, which solves the problem of poor paintability existing in the existing single- and two-component silane-modified sealants

Method used

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  • Four-component silane modified sealant as well as preparation and use methods thereof
  • Four-component silane modified sealant as well as preparation and use methods thereof
  • Four-component silane modified sealant as well as preparation and use methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] Table 1 lists a four-component implementation formula component, that is, Example 1. The raw materials used belong to the prior art; at the same time, according to the four-component main agent: dewatering agent: accelerator: curing agent=10:0.03:0.1 : 1 implementation ratio, carry out corresponding ratio design to each component, form single-component comparative example 1 and two-component comparative example 2.

[0055] Silane-modified polymer resins are MS, STP, STPE, SPU, SPUR and other silane-modified polymer resin products of the prior art; plasticizers can be existing DIDI, PPG and other plasticized products; reinforcing fillers are existing There are technical products, preferably nano-calcium carbonate; pigments and fillers are prior art products, such as carbon black, phthalocyanine pigments, titanium dioxide and other pigments, and fillers such as heavy calcium, light calcium, and silicon micropowder; weather resistance additives are prior art products, Such...

Embodiment 2

[0061] The preparation method of the present invention is carried out according to the proportioning component design of Example 1, and the specific method is as follows:

[0062] The preparation method of the main ingredient is: using a double planetary mixer, according to the design of the main ingredient formula, weighing and adding silane-modified polymer resin, plasticizer, alkyl phosphate, reinforcing filler, pigment filler, fumed silica, each For weather-resistant additives, etc., under normal temperature and vacuum conditions, start the double planetary mixer, mix the materials into a uniform and fine paste, and then pack them out, generally in 4L or 20L barrels;

[0063] Preparation method of curing agent: according to the design ratio of curing agent, weigh reinforcing fillers, pigments and fillers, fumed silica and other powders, dry them at 105°C for 2 hours, cool them for later use; then put them in a dry and clean double planetary mixer Add stannous octoate, dode...

Embodiment 3

[0068] Open the main agent 4L barrel cover in the four-component sealant prepared in Example 2, put the barrel on the material disperser, install the stirring paddle, and after the test machine is normal, the dewatering agent can be mixed according to the total weight of the main agent ( 0.3% (about 16.8g) of about 5.6Kg) was added and mixed for 8 minutes; then an accelerator (about 56g) was added according to the weight of the main agent at 1% and dispersed for 6 minutes; finally, a curing agent was added at a ratio of 10% of the total amount of the main agent (about 560g), stop the machine after 8 minutes of dispersion, remove the stirring paddle, then use a glue gun to suck glue or scrape glue with a scraper, and seal and protect the designated position according to the design or use requirements.

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PUM

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Abstract

The invention discloses a four-component silane modified sealant, which is prepared from a host agent, a water remover, an accelerator and a curing agent, wherein the host agent is prepared from silane modified polymer resin, a reinforcing filler, a pigment filler, fumed silica, a plasticizer, alkyl phosphate and a weather resistance additive; the curing agent is prepared from a catalyst, lauryl amine, a reinforcing filler, a pigment, a plasticizer and fumed silica; the water remover is a vinyl silicane coupling agent; and the accelerator is a silane coupling agent prepared from amino or an epoxy group or prepared by mixing the amino with the epoxy group according to any weight ratio. The four-component silane modified sealant is prepared by uniformly mixing the four components under normal-temperature and vacuum conditions. During use on the site, the water remover is firstly fed into the host agent for dispersion through a material dispersing machine, then the accelerator is fed fordispersion, and finally the curing agent is fed for dispersion, so as to suck and inject the sealant. The preparation process of the product disclosed by the invention is simple and quick, and the production cost is substantially reduced; reliable mixing and dispersion can be realized by using existing equipment on the site; and the operation is convenient and efficient.

Description

technical field [0001] The invention relates to a sealing material and its preparation and use method, in particular to a four-component silane modified sealant and its preparation and use method, belonging to the technical field of adhesive sealing materials in the construction industry. Background technique [0002] Compared with traditional polysulfide, silicone, polyurethane and other sealants, silane-modified polymer sealants have the advantages of cleanliness, environmental protection and high efficiency. Since they entered the market in the 1980s, they have been rapidly promoted. The market share has exceeded 50%, and the market share of similar products in Europe and America has also exceeded 30%. [0003] Generally speaking, there are two main types of silicon-modified sealants, one is to modify polyether with siloxane end-capping, and the other is to modify polyurethane with siloxane-end capping. The synthesis, preparation methods and properties of the two modifie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/12C09J175/04C09J11/04C09J11/06
CPCC09J11/04C09J11/06C09J175/04C09J183/12C08L75/04C08K13/02C08K3/36C08K5/521
Inventor 安云岐李雁张连英李兵晁兵李承宇杨棕凯曹辉
Owner XUZHOU ZHONGKUANG ANFENG ENG TECH
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