Glass fiber sizing agent for daylighting panel and preparation method and use thereof

A preparation method of a glass fiber sizing agent, comprising:

• pre-dispersing a silane coupling agent by adding an amount of water to a first container, adjusting pH to 3.0-4.0 with an amount of a pH regulator, adding a first silane coupling agent while stirring to disperse for 20-25 min, and adding a second silane coupling agent and stirring to disperse for 15-20 min;
• pre-dissolving a lubricant by adding hot water with a mass of 10-30 times that of the lubricant and the pH regulator with a mass of 0.5-1.0 times that of the lubricant to a second container, and adding the lubricant and stirring for dissolution;
• pre-dissolving an antistatic agent by adding the antistatic agent to a third container, and dissolving and diluting the antistatic agent with hot water with a mass of 15-20 times that of the antistatic agent;
• pre-dissolving a film-forming agent by adding the film-forming agent to a fourth container, and dissolving the film-forming agent with water with a mass of 1-2 times that of the film-forming agent;
• and
• preparing the glass fiber sizing agent by adding water with a mass of 0.2-0.3 times a total mass of the glass fiber sizing agent to a preparation kettle, and adding the dispersed and dissolved silane coupling agent, the film-forming agent, the lubricant, and the antistatic agent in sequence;
• and adding balance water as a supplement and stirring for even dispersion;
• wherein the glass fiber sizing agent comprises effective components and water, and has a solid content of 2-8%;
• and the effective components comprise the silane coupling agent, the film-forming agent, the lubricant, the antistatic agent, and the pH regulator, and a percentage of solid mass of each of the effective components in a solid mass of the glass fiber sizing agent is as follows:
• the silane coupling agent
• 3-15%,
• the film-forming agent
• 68-93%,
• the lubricant
• 0.5-10%,
• the antistatic agent
• 1-12%, and
• the pH regulator
• 0-5%;
• the silane coupling agent comprises the first silane coupling agent and the second silane coupling agent, the first silane coupling agent is a benzylamino silane coupling agent, the second silane coupling agent is a methacryloxy silane coupling agent, and the first silane coupling agent and the second silane coupling agent have a mass ratio of 1:15 to 2:3;
• the benzylamino silane coupling agent is one or more selected from the group consisting of γ-benzyl-γ-aminoethyl-3-aminopropyltrimethoxysilane and γ-vinylbenzyl-γ-aminoethyl-3-aminopropyltrimethoxysilane;
• the film-forming agent comprises an epoxy emulsion and an epoxy ester emulsion;
• and the epoxy emulsion and the epoxy ester emulsion have a solid mass ratio of 1:12 to 2:1;
• and
• the epoxy ester emulsion is one or more selected from the group consisting of a bisphenol A type epoxy acrylate emulsion, a bisphenol A type epoxy isocyanate emulsion, a bisphenol A type epoxy linoleate emulsion, and a bisphenol A type epoxy maleate emulsion.

A glass fiber product produced by coating with a glass fiber sizing agent,

• wherein the glass fiber sizing agent comprises effective components and water, and has a solid content of 2-8%;
• and the effective components comprise a silane coupling agent, a film-forming agent, a lubricant, an antistatic agent, and a pH regulator, and a percentage of solid mass of each of the effective components in a solid mass of the glass fiber sizing agent is as follows:
• the silane coupling agent
• 3-15%,
• the film-forming agent
• 68-93%,
• the lubricant
• 0.5-10%,
• the antistatic agent
• 1-12%, and
• the pH regulator
• 0-5%;
• the silane coupling agent comprises a first silane coupling agent and a second silane coupling agent, the first silane coupling agent is a benzylamino silane coupling agent, the second silane coupling agent is a methacryloxy silane coupling agent, and the first silane coupling agent and the second silane coupling agent have a mass ratio of 1:15 to 2:3;
• the benzylamino silane coupling agent is one or more selected from the group consisting of γ-benzyl-γ-aminoethyl-3-aminopropyltrimethoxysilane and γ-vinylbenzyl-γ-aminoethyl-3-aminopropyltrimethoxysilane;
• the film-forming agent comprises an epoxy emulsion and an epoxy ester emulsion;
• and the epoxy emulsion and the epoxy ester emulsion have a solid mass ratio of 1:12 to 2:1;
• and
• the epoxy ester emulsion is one or more selected from the group consisting of a bisphenol A type epoxy acrylate emulsion, a bisphenol A type epoxy isocyanate emulsion, a bisphenol A type epoxy linoleate emulsion, and a bisphenol A type epoxy maleate emulsion.