Preparation method and application of a new type of micro-smoke ignition wire outer covering wire
A technology of ignition wire and outer covering wire, which is applied in the field of preparation of ultra-high molecular weight polyethylene regenerated cellulose blended yarn, and can solve problems such as poor process performance, low melting point, and low strength of regenerated cellulose
Inactive Publication Date: 2022-03-25
喻翠云 +1
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- Application Information
AI Technical Summary
Problems solved by technology
However, the melting point of PE is low, and it is easy to melt into liquid droplets when burning, which affects the continuous burning of the fuse.
Because regenerated cellulose does not contain impurities such as protein and other natural cellulose such as cotton and hemp, it has the advantages of less smoke and no carbon formation, and has stable combustion, high combustion temperature, and does not melt. It is more suitable for use as a low-smoke safety fuse However, the regenerated cellulose has the disadvantage of low strength. It is used for the outer covering wire of the micro-smoke safety fuse. It is easy to break during the production of the fuse, the process performance is poor, and the fuse is difficult to form.
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0017] The blend ratio of UHMWPE staple fiber and cellulose staple fiber is 60 / 40, the strength of the blended yarn is 30 cN / dtex, the yarn denier is 21, and the ignition temperature is 199 ℃, which is slightly different from the ignition temperature of 199.4 ℃. The smoke igniter powder is made into a micro-smoke safety fuse. The fuse burns normally, it is not easy to extinguish, and the smoke is less, which is more than half of the smoke of the commonly used PET safety fuse.
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Abstract
The invention provides an ultra-high molecular weight polyethylene modified cellulose yarn, which is formed by blending ultra-high molecular weight polyethylene short fibers and regenerated cellulose short fibers. The yarn needs a certain degree of fuzziness and is a single-ply yarn. This ultra-high molecular weight polyethylene modified cellulose yarn is used as an outer covering wire in the production process of the micro-smoke safety fuse.
Description
technical field [0001] The invention relates to the preparation of an ultra-high molecular weight polyethylene regenerated cellulose blended yarn and its application in the manufacture of a micro-smoke safety ignition wire. Background technique [0002] Flare is a pyrotechnic product used for ignition, fire transmission and time control. It is mainly used in the discharge of fireworks and firecrackers. According to the different burning speeds, it can be divided into fast fuse and slow fuse. Kraft paper quick ignition wire (referred to as kraft paper ignition wire) is a kind of fast ignition wire widely used in the fireworks industry at present. production. When the kraft paper fuse is used, the shell is easy to kink and glue, and the pyrotechnic powder is easily damaged by moisture, which produces strong smoke when burning. In order to overcome the shortcomings of traditional kraft paper fuses, some domestic units have carried out research on new fuses. Some have been li...
Claims
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IPC IPC(8): D02G3/04D02G3/44C06C5/00
CPCD02G3/045D02G3/44C06C5/00D10B2201/22D10B2321/021
Inventor 喻翠云黄志萍周溪
Owner 喻翠云