PVC (polyvinyl chloride) double side compound sound-proof felt and preparation method thereof

A sound-insulating felt and double-sided technology, which is applied in the field of PVC double-sided composite sound-insulating felt and its preparation, can solve the problems of degumming and delamination of the glue bonding layer, the decline of the use function of sound-insulating parts, and non-compliance with environmental protection, so as to achieve protection without Abrasion, elimination of shock and abnormal noise, and improvement of plasticizing effect

Pending Publication Date: 2018-06-08
ZHENJIANG MEIDA PLASTICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the effects of moisture, high and low temperature erosion, etc., the bonding layer between the PVC sheet and the fiber felt is prone to delamination, resulting in a decline in the use of sound insulation components
[0007] To sum up, sound insulation materials such as needle-punched felt and PVC sheets used in current air-conditioning compressors generally have flammability and environmental protection that do not meet relevant laws and regulations and industry technical requirements, and glue bonding may occur. Layer degumming and delamination, resulting in defects in subsequent die-cutting processing and performance, and cannot meet the technical requirements and functional requirements of sound insulation components

Method used

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  • PVC (polyvinyl chloride) double side compound sound-proof felt and preparation method thereof
  • PVC (polyvinyl chloride) double side compound sound-proof felt and preparation method thereof
  • PVC (polyvinyl chloride) double side compound sound-proof felt and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Composition and weight percentage of fiber needle felt: flame-retardant polyacrylonitrile staple fiber 60-65%, flame-retardant viscose staple fiber 25-30%, flame-retardant PET staple fiber 5-10%, the sum of each component is 100 %.

[0044] The preparation technology of fiber needle felt, comprises the following steps:

[0045] 1) Ingredients: weigh 20kg as a batch, weigh the three component fiber materials according to the above percentages, and manually disperse and sprinkle them on the conveyor belt. By analogy, the raw materials are continuously weighed in batches and proportionally, and put on the conveyor belt for forward output. Conveyor belt width: 1000mm; Conveyor belt linear speed: 1-10m / min.

[0046] 2) Mixing: Send the raw materials conveyed by the conveyor belt into the opener, and use the comb needle and nail plate on the high-speed rotating opener roller to disperse and disrupt the fiber materials of the three components, and send them to the opener thr...

Embodiment 2

[0053] The formula (parts by weight) of the PVC heavy layer is: 100 parts of PVC resin (type 5), 24-30 parts of DOTP (dioctyl terephthalate), 4-6 parts of CPE (CL 35%), calcium- 5-7 parts of zinc composite stabilizer, 2-4 parts of zinc stearate, 2-4 parts of stearic acid, 2-3 parts of silane coupling agent, 25-50 parts of aluminum hydroxide, 6-8 parts of antimony trioxide 50-75 parts of calcium carbonate, 50-75 parts of barium sulfate, 1-2 parts of carbon black.

[0054] The preparation process of the PVC sheet is as follows: after weighing the raw materials according to the formula, they are mixed in a high-speed mixer, and the mixed powder raw materials are granulated by a granulator for later use. Start the barrel and mold heating device of the PVC sheet extruder. After reaching the set process temperature, start the extrusion motor to make the screw rotate. The extruded sheet melt is extruded quantitatively and at a constant speed through the mold for compounding in subse...

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Abstract

The invention discloses PVC (polyvinyl chloride) double-side compound sound-proof felt and a preparation method of the felt. The PVC double-side compound sound-proof felt is in an A-B-A layered structure; the A-B-A layered structure comprises a PVC heavy layer, and fiber punched felt compounded on the upper surface and the lower surface of the PVC heavy layer. The novel PVC sound-proof felt adoptsa compound structure; a sound-proof component for an air conditioner compressor can be conveniently arranged and quickly mounted; the sound-proof felt can achieve the best sound-proof, noise reduction, damping and shock absorption effects; in addition, the sound-proof felt further has effects of effectively protecting harnesses and copper pipes against oscillation wear and removing abnormal sloshing sound; and the sound-proof felt is environment-friendly and stable in performance. The preparation method is simple, and adopts hot-melt rolling compounding, and the product is free from lamination and has good practicability.

Description

technical field [0001] The invention belongs to the technical field of sound-insulating felts, and in particular relates to a PVC double-sided composite sound-insulating felt and a preparation method thereof. Background technique [0002] Sound insulation felt refers to a composite material with a certain toughness, mechanical strength, and high density rubber-plastic substrate as the main body. The types of rubber-plastic materials used include PVC, rubber or EPDM. Rubber or EPDM is used in Europe and the United States. There are more yuan, ethylene and propylene, and more PVC is used in Japan. Japan is one of the countries where sound insulation felts are widely used and have a long history. A large number of sound insulation felts are used in sound insulation of house walls and ceilings. [0003] With the wide application of household air conditioners, the requirements for sound insulation and noise reduction of air conditioners are constantly increasing. Due to the spe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/30B32B27/12B32B37/10D04H1/4382D04H1/498D04H1/43D04H1/4258D04H1/435C08L27/06C08L23/28C08K13/02C08K5/12C08K5/098C08K5/09C08K3/22C08K3/26C08K3/04B29D7/00F04B39/00
CPCB32B27/304B29D7/00B32B27/12B32B27/308B32B37/10B32B2250/03B32B2250/40B32B2262/0246B32B2262/0284B32B2262/04B32B2307/102B32B2307/552B32B2307/554B32B2509/00C08K2003/2227C08K2003/265C08L27/06D04H1/4258D04H1/43D04H1/435D04H1/4382D04H1/498F04B39/0027C08L23/286C08K13/02C08K5/12C08K5/098C08K5/09C08K3/22C08K3/26C08K3/04
Inventor 郭虎徐进
Owner ZHENJIANG MEIDA PLASTICS CO LTD
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