Composite dispersant for resin anchoring agent
A technology of composite dispersant and resin anchoring agent, which is applied in the field of composite dispersing agent for resin anchoring agent, can solve the problems of inability to increase curing process parameters and reduce the amount of filler, so as to prevent sedimentation and coagulation, reduce interfacial tension, and reduce false coagulation. effect of phenomenon
Active Publication Date: 2014-06-04
美亚高新材料股份有限公司
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Problems solved by technology
[0004] In order to solve the above-mentioned "drift" of the curing process parameters of the resin anchoring agent and the inability to increase the amount of filler to reduce the production cost, the present invention provides a composite dispersant for resin anchoring agent
Method used
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Embodiment 1
[0012] Example 1: Composite dispersant for resin anchoring agent, which is obtained by preparing mixed suspending liquid from chelating dispersant, heavy metal chelating agent and hyperdispersant at a mass ratio of 1:1:2.
[0013] The chelating dispersant is a maleic anhydride-acrylic acid copolymer; the heavy metal chelating agent is a dithiocarbamate derivative; the hyperdispersant is an ethoxylated trisiloxane .
[0014] When producing the anchoring agent cement, the composite dispersant is poured into the cement premix chamber according to 2-6% of the resin amount and the resin is stirred.
[0015] The following table 1 is the effect comparison of adding composite dispersant and not adding composite dispersant:
[0016] Table 1:
[0017]
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The invention discloses a composite dispersant for a resin anchoring agent. The composite dispersant is obtained by mixing a chelating dispersant, a heavy metal chelator and a hyperdispersant with a mass ratio of 1 : 1 : 2 into a mixed liquid suspension, wherein the chelating dispersant is maleic anhydride-acrylic acid copolymer, the heavy metal chelator is dithiocarbamate derivatives, and the hyperdispersant is ethoxy modified trisiloxane. When anchoring agent clay is produced, the composite dispersant with an amount of 2-6 % of that of the resin, together with the resin, is poured into a clay premix tank for stirring. According to the invention, the metal chelator can effectively chelate metal ions such as iron ion, aluminium ion, etc. in stone powder filling materials and prevent their participation in the anchor reaction; and the dispersant can rapidly and fully moisten filling material particles, reduce interfacial tension, and prevent settlement and coacervation of solid particles. By using the composite dispersant, curing parameters of the resin anchoring agent do not obviously drift, thereby greatly reducing probability of false coacervation phenomena, ensuring quality of the resin anchoring agent, increasing adding amount of the filling materials by more 10 % based on original amount under a same quality, and effectively reducing cost.
Description
technical field [0001] The invention relates to a composite dispersant for resin anchoring agents, in particular to the field of unsaturated polyester resin anchoring agents. Background technique [0002] Unsaturated polyester resin anchoring agent is widely used in coal wall and roof support of coal mines, roof support of tunnels, shaft installation and seismic reinforcement of buildings, etc. It is an important part of the support industry. [0003] The validity period of the resin anchoring agent is three months, but it must be used by the user immediately after leaving the factory, and it often needs to be stored for a long time. During this process, the slow consumption of the polymerization inhibitor in the anchoring agent resin component and the limitations of the adopted curing system and the metal impurities contained in the filler lead to the gel time, curing time, exothermic peak, etc. of the anchoring agent. The curing process parameters change, we call the "dri...
Claims
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IPC IPC(8): C08L67/06C04B103/40
Inventor 张晓玲葛德虎
Owner 美亚高新材料股份有限公司