Lightweight soundproof phenolic resin and preparation method thereof

A phenolic resin, lightweight technology, applied in the field of reinforced resins, can solve the problems of poor toughness, high brittleness of phenolic resins, restricting high-performance materials, etc., to achieve the effects of improving stability, strengthening phenolic resins and reducing quality

Inactive Publication Date: 2018-11-27
ANHUI HAOSEN NEW MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The raw material of phenolic resin is easy to get, the price is low, the production process and equipment are simple, and the product has excellent mechanical properties, heat resistance, cold resistance, electrical insulation, dimensional stability, molding processability, flame retardancy and smoke resistance, and has Wide range of uses, however, traditional unmodified phenolic resins are brittle and poor in toughness, which largely limits the development of high-performance materials

Method used

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  • Lightweight soundproof phenolic resin and preparation method thereof

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preparation example Construction

[0033] The present invention also provides a kind of preparation method of light-weight soundproof phenolic resin, comprises the following steps:

[0034] (1) Spinning after mixing the first polymer emulsion and foaming agent uniformly to obtain polymer fibers;

[0035] (2) Put polymer fibers, chain extenders and soluble metal salts in the second polymer emulsion, react at 60-100°C for 15-60min, then soak in acidic solution, and then treat at 150-200°C 15 to 30 minutes to obtain composite fibers;

[0036] (3) After uniformly mixing the phenol raw material, the aldehyde raw material, the catalyst and the composite fiber in an organic solvent, reflux at 80-120° C. for 3-5 hours to obtain a light-weight sound-insulating phenolic resin.

[0037] According to the present invention, in the present invention, by mixing the foaming agent with the first polymer emulsion and performing electrospinning, polymer fibers containing the foaming agent are generated. After the foaming agent i...

Embodiment 1

[0065] (1) Preparation of engine skeleton:

[0066] A, 24g solid content is 50% polyethylene terephthalate emulsion, 6g 4,4-oxobisbenzenesulfonyl hydrazide is mixed and then spinning, obtains polyethylene terephthalate fiber, The spinning process is: the power supply voltage is 30KV, the spinning environmental conditions are temperature 25°C, relative humidity 60%; the needle spacing of the multi-needle spinneret unit is 15cm, and the number of spinneret unit needleheads is 45;

[0067] B. Take 22g polyethylene terephthalate fiber, 20g ethylene glycol and 3g zinc nitrate and place it in 12g polyethylene terephthalate emulsion with a solid content of 45%, and react at 80°C for 45min to obtain a composite fiber A, and then soak the composite fiber A in a hydrochloric acid solution with a pH of 3 for 2 hours, and replace the hydrochloric acid solution every 15 minutes to obtain a composite fiber B, and treat the composite fiber B at 180° C. for 15 minutes to obtain a composite fi...

Embodiment 2

[0074] (1) Preparation of engine skeleton:

[0075]A. 20g of nylon 6 emulsion with a solid content of 33% and 2g of 4,4-oxobisbenzenesulfonyl hydrazide are mixed evenly and then spun to obtain nylon 6 fibers. The spinning process is: power supply voltage 30KV, spinning environment The conditions are a temperature of 25°C and a relative humidity of 60%; the needle spacing of the multi-needle spinneret unit is 15cm, and the number of needleheads of the spinneret unit is 45;

[0076] B. Take 18g of nylon 6 fibers, 24g of 1,3-butanediol and 2g of cobalt acetate and place them in 10g of nylon 6 emulsion with a solid content of 28%, and react at 80°C for 30min to obtain composite fiber A, and then composite fiber A Soak in a hydrochloric acid solution with a pH of 2 for 1.5 hours, wherein the hydrochloric acid solution is replaced every 15 minutes to obtain a composite fiber B, and treat the composite fiber B at 150°C for 30 minutes to obtain a composite fiber C;

[0077] The compo...

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Abstract

The invention relates to the technical field of reinforced resin, concretely to a preparation method of lightweight soundproof phenolic resin. The preparation method of the lightweight soundproof phenolic resin includes the following steps: (1) evenly mixing a first polymer emulsion and a foaming agent and spinning to obtain a polymer fiber; (2) placing the polymer fiber, a chain extender and a soluble metal salt in a second polymer emulsion, reacting at 60-100 DEG C for 15-60 min, immersing the mixture in an acidic solution, and treating the mixture at 150-200 DEG C for 15-30 min to obtain acomposite fiber; and (3) evenly mixing a phenol raw material, an aldehyde raw material, a catalyst and the composite fiber in an organic solvent, refluxing at 80-120 DEG C for 3-5 h to obtain the lightweight soundproof phenolic resin. According to the method, phenolic resin is added to the composite fiber with a multi-porous structure. The multi-porous structure can reduce the quality of the system and block the transmission of sound, thereby insulating the sound.

Description

technical field [0001] The invention relates to the technical field of reinforced resins, in particular to a light-weight sound-insulating phenolic resin and a preparation method thereof. Background technique [0002] In recent years, automobile lightweight has become the key direction of the development of the current automobile field. Lightweight technology can not only effectively solve the problem of environmental pollution, achieve the goal of energy saving and emission reduction, but also greatly reduce the cost of automobile manufacturing. It has great economic benefits compared with the cars currently in use. [0003] At present, the methods of reducing the weight of automobiles mainly include the use of lightweight materials and the reduction of the cross-section of door panels. Reducing the cross-section of the door panel means reducing the thickness of the door panel. Although it can reduce the overall weight of the car, it will also lead to a decrease in the str...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L61/08C08L61/12C08L67/02C08L77/02C08L31/04C08L67/00C08L33/12
CPCC08L61/06C08L61/12C08L2205/16C08L67/02C08L77/02C08L31/04C08L67/00C08L33/12
Inventor 翟彬
Owner ANHUI HAOSEN NEW MATERIAL TECH CO LTD
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