Polylactic acid wire cable

Abstract

The utility model relates to the technical field of wires and cables, and discloses a polylactic acid wire and cable, which comprises a main wire core and insulating wire cores, the insulating wire cores are arranged on the periphery of the main wire core, insulating layers are sleeved on the outer walls of the main wire core and the insulating wire cores, and polylactic acid filling layers are arranged on the outer sides of the insulating layers. The polylactic acid filling layer between the insulating layer and the wrapping layer is formed by filling polylactic acid, rubber strips are arranged in the polylactic acid filling layer along the axial direction of the cable, and the outer wall of the polylactic acid filling layer is coated with a polycaprolactone coating which can be blended with polylactic acid, so that the toughness of the polylactic acid is effectively improved, and meanwhile, the degradability of the polylactic acid is kept; when the polylactic acid filling layer encounters large-amplitude bending of the cable and causes stress damage, the rubber strip can ensure that the broken polylactic acid is still attached to the outer wall of the rubber strip and reaches a bent shape, and the wrapping layer wraps the broken polylactic acid filling layer, so that the polylactic acid filling layer is prevented from being damaged and deformed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric wire and cable, specifically to a kind of polylactic acid electric wire and cable. BACKGROUND

[0002] Traditional electric wire and cable is composed of core and insulating sheath layer wrapped in the outer layer of core, and toxic gas is easily produced under high temperature after long-term use, polluting the atmospheric environment.

[0003] Polylactic acid electric wire and cable is a kind of electric wire and cable product made of polylactic acid material, and polylactic acid material has good biocompatibility and biodegradability, which can be completely degraded by microorganisms in nature.

[0004] However, polylactic acid material in polylactic acid electric wire and cable is brittle and easy to break, which may cause damage and deformation of electric wire and cable during transportation, installation or use. Therefore, a polylactic acid electric wire and cable is provided by the skilled in the art to solve the problems raised in the above background technology. UTILITY MODEL CONTENTS

[0005] (I) Technical problem solved

[0006] In view of the shortcomings of the prior art, the utility model provides a polylactic acid electric wire and cable to solve the problem that polylactic acid material in polylactic acid electric wire and cable is brittle and easy to break, which may cause damage and deformation of electric wire and cable during transportation, installation or use.

[0007] (II) Technical scheme

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a polylactic acid electric wire and cable, comprising a main core and an insulating core, the insulating core is arranged on the side of the main core, the outer wall of the main core and the insulating core is sleeved with an insulating layer, the outer side of the insulating layer is provided with a polylactic acid filling layer, the outer side of the polylactic acid filling layer is provided with a polycaprolactone coating layer, the polylactic acid filling layer is provided with a rubber strip, the outer side of the polycaprolactone coating layer is provided with a wrapping layer, and the outer side of the wrapping layer is provided with a polylactic acid armor layer.

[0009] Preferably, the polycaprolactone coating layer is brushed on the outer wall of the polylactic acid filling layer, and the polylactic acid filling layer is brushed with a polycaprolactone coating layer, which can be blended with polylactic acid, effectively improving the toughness of polylactic acid.

[0010] Preferably, the rubber strip is fixedly inserted with the polylactic acid filling layer, when the polylactic acid filling layer is stressed and broken due to large bending of the cable, the rubber strip can ensure that the broken polylactic acid still adheres to the outer wall of the rubber strip and reaches the bending shape, and the wrapping layer wraps the broken polylactic acid filling layer, avoiding deformation of the polylactic acid filling layer.

[0011] (Three) beneficial effects

[0012] Compared with the prior art, the poly-lactic acid wire cable has the following beneficial effects:

[0013] Through the design, the poly-lactic acid wire cable of the utility model is composed of an insulation layer, a poly-lactic acid filling layer, a wrapping layer and a poly-lactic acid armor layer, the poly-lactic acid filling layer between the insulation layer and the wrapping layer is formed by poly-lactic acid filling, a rubber strip is arranged in the poly-lactic acid filling layer along the axial direction of the cable, and a polycaprolactone coating layer which can be blended with poly-lactic acid is coated on the outer wall of the poly-lactic acid filling layer, so that the toughness of poly-lactic acid is effectively improved while the degradability is maintained, when the poly-lactic acid filling layer is damaged due to stress caused by large bending of the cable, the rubber strip can ensure that the broken poly-lactic acid is still attached to the outer wall of the rubber strip and reaches the bending shape, and the wrapping layer wraps the damaged poly-lactic acid filling layer, avoiding deformation of the poly-lactic acid filling layer. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional structure schematic view of a poly-lactic acid wire cable provided by the embodiment of the present application.

[0015] Figure 2 is a structure schematic view of a poly-lactic acid filling layer and a rubber strip in a poly-lactic acid wire cable provided by the embodiment of the present application.

[0016] In the figure: 1, main wire core; 2, insulated wire core; 3, insulation layer; 4, poly-lactic acid filling layer; 5, rubber strip; 6, polycaprolactone coating layer; 7, wrapping layer; 8, poly-lactic acid armor layer. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] The utility model provides a technical scheme, a poly-lactic acid wire cable, please refer to Figure 1 、 Figure 2 , including main wire core 1 and insulated wire core 2, insulated wire core 2 sets up in main wire core 1 periphery, the outer wall of main wire core 1 and insulated wire core 2 all is equipped with insulation layer 3, the outside of insulation layer 3 is provided with poly-lactic acid filling layer 4, and the outside of poly-lactic acid filling layer 4 is provided with polycaprolactone coating layer 6, rubber strip 5 is provided in poly-lactic acid filling layer 4, the outside of polycaprolactone coating layer 6 is provided with wrapping layer 7, and the outside of wrapping layer 7 is provided with poly-lactic acid armor layer 8.

[0019] Please refer to Figure 1 、 Figure 2 , the polylactide filling layer 4 is coated with a polylactone coating layer 6, and the polylactone coating layer 6 coated on the outer wall of the polylactide filling layer 4 can be blended with polylactide, effectively improving the toughness of polylactide, and the rubber strip 5 is fixedly inserted with the polylactide filling layer 4, when the polylactide filling layer 4 is broken due to stress caused by large bending of the cable, the rubber strip 5 can ensure that the broken polylactide is still attached to the outer wall of the rubber strip 5 and reaches the bending shape, and the broken polylactide filling layer 4 is wrapped by the wrapping layer 7, avoiding deformation of the polylactide filling layer 4.

[0020] In the polylactide wire and cable, the outer part of the main wire core 1 and the insulating wire core 2 is wrapped with an insulating layer 3, the outer side of the insulating layer 3 is provided with a polylactide filling layer 4, and the outer wall of the polylactide filling layer 4 is coated with a polylactone coating layer 6, the outer side of the polylactone coating layer 6 is wrapped with a wrapping layer 7, and the outer side of the wrapping layer 7 is sleeved with a polylactide armor layer 8.

[0021] Among them, the polylactide filling layer 4 between the insulating layer 3 and the wrapping layer 7 is formed by polylactide filling, the rubber strip 5 is arranged in the polylactide filling layer 4 along the axial direction of the cable, and the polylactone coating layer 6 coated on the outer wall of the polylactide filling layer 4 can be blended with polylactide, effectively improving the toughness of polylactide while maintaining its degradability, when the polylactide filling layer 4 is broken due to stress caused by large bending of the cable, the rubber strip 5 can ensure that the broken polylactide is still attached to the outer wall of the rubber strip 5 and reaches the bending shape, and the broken polylactide filling layer 4 is wrapped by the wrapping layer 7, avoiding deformation of the polylactide filling layer 4.

[0022] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0023] In this article, unless otherwise expressly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screwing" and other terms should be understood broadly, for example, can be fixedly connected, can also be detachably connected, or integrated; can be mechanically connected, can also be electrically connected; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise expressly limited, the person skilled in the art can understand the specific meaning of the above-mentioned terms in the utility model according to the specific circumstances.

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A polylactic acid (PLA) wire and cable, comprising a main conductor (1) and an insulated conductor (2), wherein the insulated conductor (2) is disposed around the main conductor (1), characterized in that: The outer walls of the main wire core (1) and the insulated wire core (2) are both covered with an insulation layer (3). A polylactic acid filling layer (4) is provided on the outside of the insulation layer (3). A polycaprolactone coating (6) is provided on the outside of the polylactic acid filling layer (4). A rubber strip (5) is provided inside the polylactic acid filling layer (4). A wrapping layer (7) is provided on the outside of the polycaprolactone coating (6). A polylactic acid armor layer (8) is provided on the outside of the wrapping layer (7).

2. The polylactic acid wire and cable according to claim 1, characterized in that: The polycaprolactone coating (6) and the polylactic acid filler layer (4) are coated on the outer wall.

3. The polylactic acid wire and cable according to claim 1, characterized in that: The rubber strip (5) is fixedly inserted into the polylactic acid filling layer (4).

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