A kind of 125 ℃ grade pvc vehicle thin-walled wire composition and preparation method thereof
A composition and technology for automobiles, applied in the field of 125°C grade PVC automobile thin-walled wire composition and its preparation, can solve the problems that wires cannot meet the requirements of grade C, and achieve wide service temperature range, high flexibility, The effect of excellent long-term high temperature aging resistance
Active Publication Date: 2020-09-08
CHINA PETROLEUM & CHEM CORP
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Problems solved by technology
The soft polyvinyl chloride plastic composed of the above formula has excellent flame retardancy and good low-temperature embrittlement resistance, but the wires processed with it still cannot meet the requirements of Class C
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0025] Examples 1 to 6 are specific implementations of a 125°C grade PVC automotive thin-walled electric wire composition and a preparation method thereof of the present invention. Wherein embodiment 1 is the best embodiment.
[0026] The proportioning ratio of table 1 embodiment (by weight)
[0027] .
[0028] The preparation method of embodiment 1~6 adopts following steps:
[0029] 1) Weigh the copolymerized polyvinyl chloride resin, composite plasticizer and stabilizer according to the weight ratio, add them into the high-speed mixer, stir and heat in the high-speed mixer, and wait until the plasticizer is completely absorbed by the PVC, press Weight ratio Add modifier, wear-resistant filler, antioxidant and lubricant, stir at high speed, stirring temperature is 120℃~130℃, until the material is completely uniform, put the material into a low-speed mixer and mix, cool to 40~45 ℃ release the mixed material;
[0030] 2) Processing and granulation: Put the prepared materi...
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Abstract
The invention provides a 125 DEG C-grade PVC (Polyvinyl Chloride) automotive thin-wall electric wire composition and a preparation method of the 125 DEG C-grade PVC automotive thin-wall electric wire composition and belongs to the technical field of automotive electric wire compositions. The 125 DEG C-grade PVC automotive thin-wall electric wire composition is prepared from the following raw materials in parts by weight: 100 parts of copolymerized polyvinyl chloride resin, 3 to 12 parts of a modifying agent, 40 to 60 parts of a compound plasticizer, 8 to 13 parts of a stabilizer, 1 to 4 parts of an antioxygen, 4 to 10 parts of a wear-resisting filling agent and 1.0 to 5.0 parts of a lubricant. The 125 DEG C-grade PVC automotive thin-wall electric wire composition provided by the invention can meet the requirements on performances of grade-C (125 DEG C-grade) electric wires of QC / T 730-2005 Standards.
Description
technical field [0001] The invention belongs to the technical field of electric wire compositions for vehicles, and in particular relates to a 125°C grade PVC thin-walled electric wire composition for automobiles and a preparation method thereof. Background technique [0002] Wires and cables are one of the important components of automotive electrical appliances. Automotive cables are different from ordinary wires and cables, and are specially designed for the harsh and complex environmental requirements of automobiles. Due to the continuous improvement of the automation level of passenger cars, the number of electrical devices and sensors in the car has increased significantly. At the same time, the volume of the passenger compartment and storage room in the design of the car has continued to increase, which has also greatly reduced the space in the engine room and instrument panel. The shrinkage of the engine room space makes the ambient temperature of this part of the v...
Claims
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IPC IPC(8): C08L27/06C08L23/28C08L23/06C08L23/30C08K13/02C08K5/12C08K3/36C08K5/134C08K5/372
Inventor 李静张磊张桦刘浩刘容德王晓敏桂俊杰王秀丽孙丽朋王晶张新华苏建华
Owner CHINA PETROLEUM & CHEM CORP