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Glass fiber impregnating compound for enhancing PMMA, and preparation method and application thereof

A technology of glass fiber and sizing agent, which is applied in the field of glass fiber sizing agent for strengthening PMMA and its preparation, can solve the problems of poor film formation, poor mechanical properties of composite materials, slow penetration, etc., and achieves improved compatibility and good mechanical properties. and mechanical properties, fast soaking effect

Pending Publication Date: 2021-08-10
SHANDONG FIBERGLASS GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing sizing agent has slow penetration on the surface of glass fiber and poor film-forming property, which leads to poor mechanical properties of the prepared composite material and is not convenient for application.

Method used

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  • Glass fiber impregnating compound for enhancing PMMA, and preparation method and application thereof
  • Glass fiber impregnating compound for enhancing PMMA, and preparation method and application thereof
  • Glass fiber impregnating compound for enhancing PMMA, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A kind of preparation method of reinforced PMMA glass fiber sizing, the data of each material consumption sees the data of the embodiment 1 of table 1, comprises:

[0030] Step 1: Dissolve the surfactant in 1 / 2 deionized water, then add the silane coupling agent and mix well;

[0031] Step 2: Dilute the bisphenol A epoxy resin emulsion and the unsaturated polyester resin emulsion with the remaining deionized water respectively, add them to the mixed solution in step 1, and mix well;

[0032] Step 3: Add a pH adjuster and an antioxidant to the solution in Step 2, and mix evenly to obtain a wetting agent.

[0033] Further, the bisphenol A epoxy resin emulsion is a polyethylene glycol modified bisphenol A epoxy resin emulsion with a molecular weight of 600-2000; the molecular weight of the unsaturated polyester resin emulsion is 800-3000. The pH regulator is citric acid and / or acetic acid, and the antioxidant is antioxidant 1010.

[0034] The silane coupling agent is a m...

Embodiment 2-6

[0036] The contents of each substance are respectively shown as the data in Examples 2-6 in Table 1, and the rest of the conditions are the same as in Example 1.

[0037] In order to further illustrate the beneficial effects of the present application, due to limited space, only Example 3 is used as an example to construct a comparative example as follows.

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Abstract

The invention discloses a glass fiber impregnating compound for enhancing PMMA, and a preparation method and application thereof, and belongs to the technical field of impregnating compounds. The glass fiber impregnating compound for enhancing PMMA is composed of a silane coupling agent, a bisphenol A epoxy resin emulsion, an unsaturated polyester resin emulsion, a surfactant, a pH regulator and deionized water. The silane coupling agent is a mixture of methacrylic acid chromium tetrachloride, gamma-methacrylic acid propyl trimethoxy silane and divinyl triamine propyl triethoxy silane, wherein the mass ratio of the methacrylic acid chromium tetrachloride to the gamma-methacrylic acid propyl trimethoxy silane to the divinyl triamine propyl triethoxy silane is 1: (0.3-0.7): 0.2; and the surfactant is a mixture of fatty alcohol-polyoxyethylene ether and dodecyl dimethyl amine oxide in a mass ratio of (1-1.5): 0.5. Through the silane coupling agent with specific composition and proportion, the glass fiber and the PMMA resin matrix have good cohesiveness, and the prepared composite material has good mechanical property and high thermal deformation temperature.

Description

technical field [0001] The invention relates to the technical field of sizing agents, in particular to a glass fiber sizing agent for reinforcing PMMA and its preparation method and application. Background technique [0002] The Ministry of Industry and Information Technology requires that the fuel consumption target of 5L / 100km be achieved by 2020. However, in 2015, about a quarter of enterprises failed to meet the target of that year. At present, automobile manufacturers are under great pressure to save energy and reduce consumption, and automobile lightweight is an important way to achieve energy conservation and consumption reduction. [0003] The lightweight of automobiles is a concern of both consumers and car companies. In order to achieve the goal of lightweight, in addition to optimizing the structure and process design, the selection of materials is also very critical. In order to reduce the weight of cars, car companies use a large number of engineering plastics,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C25/36C03C25/323C03C25/12
CPCC03C25/12C03C25/323C03C25/36
Inventor 傅理军徐茂忠齐元彬
Owner SHANDONG FIBERGLASS GRP
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