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Glass fiber impregnating compound for enhancing polyvinyl chloride as well as preparation method and application thereof

A technology of glass fiber and polyvinyl chloride, which is applied in the field of glass fiber sizing for reinforced polyvinyl chloride and its preparation, can solve the problems of poor film-forming properties, poor mechanical properties of composite materials, and slow soaking, so as to improve compatibility, Good mechanical properties and the effect of mechanical properties

Pending Publication Date: 2021-07-27
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 polyvinyl chloride as well as preparation method and application thereof
  • Glass fiber impregnating compound for enhancing polyvinyl chloride as well as preparation method and application thereof
  • Glass fiber impregnating compound for enhancing polyvinyl chloride as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A preparation method for glass fiber sizing for reinforced polyvinyl chloride, the amount of each substance is shown in the data of Example 1 in Table 1, including:

[0031] Step 1: Dissolve the surfactant in 1 / 2 deionized water, then add the silane coupling agent and mix well;

[0032] Step 2: After diluting the unsaturated polyester resin emulsion and the water-based epoxy resin emulsion with the remaining deionized water respectively, add them to the mixed solution in step 1, and mix well;

[0033] Step 3: Add a pH adjuster and an antioxidant to the solution in Step 2, and mix evenly to obtain a wetting agent.

[0034] The molecular weight of the unsaturated polyester resin emulsion is 800-3000; the molecular weight of the water-based epoxy resin emulsion is 300-500.

[0035] Preferably, the silane coupling agent is a mixture of vinyltriethoxysilane, γ-aminopropyltriethoxysilane and γ-mercaptopropyltriethoxysilane;

[0036] The surfactant is a mixture of fatty alco...

Embodiment 2-6

[0039] 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.

[0040] 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 reinforcing polyvinyl chloride as well as a preparation method and an application thereof, and belongs to the technical field of impregnating compounds. The glass fiber impregnating compound for reinforced polyvinyl chloride is composed of the following components: a silane coupling agent, an unsaturated polyester resin emulsion, a water-borne epoxy resin emulsion, a surfactant, a pH regulator, an antioxidant and deionized water. The silane coupling agent is a mixture of vinyl triethoxy silane, gamma-amino propyl triethoxy silane and gamma-sulfydryl propyl triethoxy silane, and the mass ratio of the vinyl triethoxy silane to the gamma-amino propyl triethoxy silane to the gamma-sulfydryl propyl triethoxy silane is 1: (0.8-1.5): 0.7; and the surfactant is a mixture of fatty alcohol-polyoxyethylene ether and disodium lauryl sulfosuccinate in a mass ratio of 1: (0.5-0.7). Through the silane coupling agent with specific composition and proportion, the glass fiber and the polyvinyl chloride 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 polyvinyl chloride 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 enginee...

Claims

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Application Information

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IPC IPC(8): C03C25/465C03C25/40C03C25/36
CPCC03C25/36C03C25/40C03C25/465
Inventor 刘兴月李勇强
Owner SHANDONG FIBERGLASS GRP
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