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Glass fiber impregnating agent, sound-absorbing glass fiber and filling process thereof

A glass fiber and sizing technology, which is used in mufflers, engine components, machines/engines, etc., can solve the problem of unsatisfactory quantity and content, and achieve the effect of reducing automobile noise, ensuring dispersion and reducing emissions.

Inactive Publication Date: 2020-05-05
上海国玻汽车科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the treatment effect of glass fiber in the prior art on automobile noise complies with the corresponding emission regulations, it is not satisfactory in terms of its quantity and content, and needs further improvement. It is often necessary to use corresponding sizing agents to improve the performance of glass fiber. Sound-absorbing effect, directly (fill directly into the muffler cylinder) or indirectly (first make glass fiber and fill it into the muffler cylinder) evenly fill the glass fiber into the muffler cylinder of the automobile exhaust system, reduce the glass fiber Automobile exhaust particulate emissions after filling intake and exhaust cylinders

Method used

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  • Glass fiber impregnating agent, sound-absorbing glass fiber and filling process thereof
  • Glass fiber impregnating agent, sound-absorbing glass fiber and filling process thereof
  • Glass fiber impregnating agent, sound-absorbing glass fiber and filling process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Prepare 4 different glass fiber sizing agents I to IV according to the different formula combinations in Table 1. The preparation method is as follows: first, add water and a pH regulator to the coupling agent to completely hydrolyze the coupling agent; Add lubricant, antistatic agent and film-forming agent, and stir evenly; finally add remaining water, stir evenly to obtain the glass fiber sizing agent.

[0030] Table 1 The formulation combinations of different glass fiber sizing agents

[0031]

[0032]

Embodiment 2

[0034] Preparation of sound-absorbing fiberglass:

[0035] The glass fiber sizing agents I-IV prepared in Example 1 were coated on the glass fiber matrix at a mass percentage of 0.5% to form sound-absorbing glass fibers 1#-4#.

Embodiment 3

[0037] Fill the 4 kinds of sound-absorbing glass fibers 1#~4# prepared in Example 2 into the muffler cylinder to form 4 different tail gas treatment products I~IV, wherein the filling process is: the puffing pressure is set to 200KPa, and the puffing speed is 6000mm / s, working temperature 10℃, keep relative humidity ≤60%.

[0038] At the same time, the ordinary glass fiber was filled into the muffler cylinder according to the ordinary filling method to form the exhaust gas treatment product V, which was used as the control group.

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PUM

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Abstract

The invention relates to a glass fiber impregnating agent, a sound-absorbing glass fiber and a filling process thereof, and belongs to the field of development of glass fiber impregnating agents. Theimpregnating agent is prepared from solid components formed by a coupling agent, a lubricant, a film-forming agent, an antistatic agent and a pH regulator and water, and a functional coating is formedon the surface of the glass fiber by the impregnating agent, so that the production manufacturability of the glass fiber for sound absorption and noise reduction can be remarkably improved. Parameters in the filling process are changed, and the sound-absorbing glass fiber is filled into a device cylinder of an automobile, so that the aim of reducing the noise of the automobile can be fulfilled, and meanwhile, particle emissions in automobile exhaust can be reduced.

Description

technical field [0001] The invention belongs to the development field of glass fiber sizing agent, and in particular relates to a glass fiber sizing agent, sound-absorbing glass fiber and a filling process thereof. Background technique [0002] The car is a modern means of transportation. A moving car emits a variety of noises, which can be divided into airflow noise, combustion noise, metal impact friction and vibration noise according to their different sources. Among the various noises of a car, engine exhaust noise is a particularly high noise. The muffler is a device that prevents sound transmission and allows airflow to pass through. It is an important measure to eliminate or control aerodynamic noise. Glass fiber with high strength and other advantages can reduce car noise, and at the same time withstand the hot air flow and corrosion of exhaust gas, and ensure a good noise reduction effect for a long time. [0003] Although the treatment effect of glass fiber in th...

Claims

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Application Information

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IPC IPC(8): F01N1/24C03C25/16C03C25/465
CPCC03C25/16C03C25/465F01N1/24
Inventor 陆旗玮王艺郁文静曾庆文刘向东刘华珊娜佳·曼科黄浪姚远钱秋娟孙吉东
Owner 上海国玻汽车科技有限公司
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