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Oiling agent of large tow PAN (Polyacrylonitrile)-based carbon fiber precursors

A technology of carbon fiber precursor and carbon fiber, which is applied in the direction of fiber type, fiber treatment, fiber chemical characteristics, etc., can solve the problems of poor antistatic property and low full volume rate, and achieve the effect of increasing full volume rate and antistatic property

Active Publication Date: 2015-01-07
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that in the prior art, the oil for carbon fiber precursors has poor antistatic property, and it is easy to cause the problem of low full volume rate. A new large tow PAN-based carbon fiber precursor oil is provided. The oil agent has the advantages of good antistatic property and high full volume rate during use

Method used

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  • Oiling agent of large tow PAN (Polyacrylonitrile)-based carbon fiber precursors
  • Oiling agent of large tow PAN (Polyacrylonitrile)-based carbon fiber precursors
  • Oiling agent of large tow PAN (Polyacrylonitrile)-based carbon fiber precursors

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Embodiment 1～10

[0027] In Example 1, the emulsifier adopts polyoxyethylene laurate surfactant; in Example 2, the emulsifier adopts nonylphenol polyoxyethylene ether surfactant; in Examples 3-10, the emulsifier adopts Fatty alcohol polyoxyethylene ether surfactant.

[0028] The specific components of each embodiment are shown in Table 1, and the content of each component is shown in Table 2.

[0029] Evaluation of antistatic properties. Using the YG321 fiber specific resistance meter produced by Changzhou No. 2 Textile Machinery Factory Co., Ltd., using 36K PAN-based carbon fiber precursors with an oil content of 1% by weight, the specific resistance of the fiber is measured by the method of GB / T14342-93. The evaluation results are shown in table 3.

[0030] The spinnability of the PAN-based carbon fiber precursor is expressed by the full volume rate. The test condition of the full volume rate is to use a 500-ton / year PAN-based carbon fiber precursor production evaluation device, use a 36K ...

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Abstract

The invention relates to an oiling agent of large tow PAN (Polyacrylonitrile)-based carbon fiber precursors, which mainly aims at solving the problem in the prior art that an oiling agent for carbon fiber precursors is poor in antistatic property, and thus the possibility of low full-package rate is high. The technical scheme for solving the problem well is that an oiling agent for the large tow PAN based carbon fiber precursors is a mixture of V and W at the mixed weight ratio of 3:(1-3), wherein the V comprises the following components in parts by weight: 5 to 20 parts of amino modified polydimethylsiloxane A, 40 to 60 parts of amino modified polydimethylsiloxane B, 10 to 30 parts of polyether modified polydimethylsiloxane, and 5 to 20 parts of an emulsifying agent; and the W is an epoxy adduct of an amide compound which is obtained from reaction of diethylenetriamine and stearic acid. The oiling agent can be applied to industrial production of the large tow PAN-based carbon fiber precursors.

Description

technical field [0001] The invention relates to a large tow PAN-based carbon fiber raw silk oil agent. Background technique [0002] As the reinforcing fiber of a new generation of composite materials, carbon fiber is widely used in aerospace, aviation, automobile, construction, and light industry due to its excellent performance. Large-tow polyacrylonitrile-based carbon fiber (hereinafter referred to as large-tow PAN-based carbon fiber) is one of many carbon fibers with excellent performance, and is a key material required for strategic missiles, satellites, aerospace vehicles, and large aircraft. With the rapid development of elevated highways, the demand for large tow (greater than 24K) PAN-based carbon fibers has been rapidly increased. [0003] Industrially, PAN-based carbon fibers are prepared by the following procedures: one-step or two-step spinning of PAN polymers to obtain carbon fiber precursors; pre-oxidation of precursors in an oxidative atmosphere at a tempera...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M15/643D06M15/647D06M13/402C07C233/36C07C231/12D06M101/28D01F9/12
Inventor 唐泓畅延青施冲
Owner CHINA PETROLEUM & CHEM CORP