阅读说明：本技术 一种黑色无机纤维及其等离子体制备方法 (Black inorganic fiber and plasma preparation method thereof ) 是由 黄逸凡 高明 梅婷婷 王裕 顾晓滨 喻学锋 于 2019-12-02 设计创作，主要内容包括：本发明涉及一种黑色无机纤维及其等离子体制备方法,具体公开了一种黑色无机纤维,包括纤维基体及附在纤维基体上的碳化糖组成,所述的纤维基体为耐受500℃以上的无机纤维,例如玄武岩纤维、陶瓷纤维、石英纤维、海泡石纤维。所述附在纤维基体上的碳化糖通过以下方法获得：1)预处理：利用湿润等离子体对纤维基体进行表面改性获得活化后的纤维,在张力作用下将活化后的纤维在糖水溶液中浸泡；2)碳化染色：将步骤1)所得经浸泡的纤维通过高温碳化,得到纤维基体上附有碳化糖,即形成染色后的无机纤维。本发明新颖独特,制备方法简单,环保无污染。(The invention relates to a black inorganic fiber and a plasma preparation method thereof, and particularly discloses a black inorganic fiber, which comprises a fiber matrix and carbonized sugar attached to the fiber matrix, wherein the fiber matrix is an inorganic fiber which can resist the temperature of more than 500 ℃, such as basalt fiber, ceramic fiber, quartz fiber and sepiolite fiber. The carbonized sugar attached on the fiber matrix is obtained by the following method: 1) pretreatment: carrying out surface modification on a fiber matrix by utilizing wet plasma to obtain activated fibers, and soaking the activated fibers in a sugar water solution under the action of tension; 2) carbonizing and dyeing: carbonizing the soaked fiber obtained in the step 1) at high temperature to obtain a fiber matrix attached with carbonized sugar, namely forming the dyed inorganic fiber. The invention is novel and unique, the preparation method is simple, and the invention is environment-friendly and pollution-free.)

1. The black inorganic fiber comprises a fiber matrix and carbonized sugar attached to the fiber matrix, wherein the fiber matrix is inorganic fiber which can resist the temperature of more than 500 ℃, and is preferably selected from basalt fiber, ceramic fiber, quartz fiber and sepiolite fiber.

2. The black inorganic fiber of claim 1, wherein the carbonized sugar attached to the fiber matrix is obtained by:

1) pretreatment: carrying out surface modification on a fiber matrix by utilizing wet plasma to obtain activated fibers, and soaking the activated fibers in a sugar water solution under the action of tension;

2) carbonizing and dyeing: carbonizing the soaked fiber obtained in the step 1) at high temperature to obtain a fiber matrix with carbonized sugar attached, namely forming dyed inorganic fiber;

the wet plasma in the step 1) is formed by performing high-voltage discharge by using a mixed gas of water vapor and an inert gas.

3. A plasma preparation method of black inorganic fibers comprises the following steps:

1) pretreatment: carrying out surface modification on a fiber matrix by utilizing wet plasma to obtain activated fibers, and soaking the activated fibers in a sugar water solution under the action of tension;

2) carbonizing and dyeing: carbonizing the soaked fibers obtained in the step 1) at high temperature to obtain black inorganic fibers;

the wet plasma in the step 1) is formed by performing high-voltage discharge by using a mixed gas of water vapor and an inert gas.

4. The black inorganic fiber of claim 2 or the plasma preparation method of claim 3, the fiber matrix in step 1) being selected from basalt fiber, ceramic fiber, quartz fiber, sepiolite fiber.

5. The black inorganic fiber according to claim 2 or the plasma preparation method according to claim 3, wherein the inert gas in step 1) is selected from one or more of argon, nitrogen, helium;

preferably, the volume ratio of the water vapor to the inert gas in step 1) is 1:5 to 1:20, more preferably 1:8 to 1: 12.

6. The black inorganic fiber according to claim 2 or the plasma production method according to claim 3, wherein the activated fiber is subjected to a tension of 1N or more, preferably 3 to 5N, when the sugar water is soaked in the step 1).

7. The black inorganic fiber according to claim 2 or the plasma production method according to claim 3, wherein tension is applied to the fiber during the plasma treatment in step 1), preferably the tension is 1N or more, more preferably 1 to 3N.

8. The black inorganic fiber according to claim 2 or the plasma preparation method according to claim 3, wherein the aqueous sugar solution in step 1) is an aqueous solution of a sugar selected from the group consisting of monomeric, dimeric, oligomeric, and polymeric polyhydroxyl aldehydes or ketones;

preferably, the concentration of the sugar water solution in step 1) is above 30%, preferably 40-60%.

9. The black inorganic fiber according to claim 2 or the plasma production method according to claim 3, wherein the temperature of carbonization in the step 2) is 500 ℃ or more, preferably 500 ℃ to 700 ℃.

10. The black inorganic fiber obtained by the plasma production method according to any one of claims 3 to 9.

Technical Field

The invention belongs to the field of fiber materials, and particularly relates to a black inorganic fiber and a plasma preparation method thereof.

Background

It is well known that post-treatment dyeing of fibers is a common dyeing method. In particular, the fibers are treated using plasma techniques to increase the fiber surface roughness and chemically active groups, thereby allowing dyes to be more readily adsorbed onto the fiber surface. Chinese patent documents 200810059897.X and 201811577679.5 both disclose a related method for dyeing aramid fibers with inert gas plasma, and achieve good results.

However, unlike organic fibers such as aramid fibers, inorganic fibers have a more compact structure and a stronger surface inertness, and the prior art cannot achieve an excellent effect, and reports on such inorganic fiber dyeing methods are few. In recent years, inorganic fibers such as basalt fibers have been rapidly developed, and if basalt fibers of different colors can be provided, it has a practical significance for the popularization of downstream applications thereof. Similarly, other inorganic fibers such as ceramic fibers, sepiolite fibers, and the like face the same technical problems.

Disclosure of Invention

Drawings

Fig. 1 is a photograph of a fabric woven from basalt fiber, showing the basalt fiber in a yellow-brown color.

FIG. 2 is a photograph of a black basalt fiber product dyed by the method of the present invention, showing that the dyed product is black.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, specific embodiments accompanied with figures are described in detail below, but the present invention is not to be construed as limiting the implementable range thereof.