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Super-heat-conduction rapid shrunk heat-shrinkable bush
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A technology of shrinkage heat and superconductivity, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., to achieve the effect of improving heat shrinkage efficiency, uniform and rapid heating, and low cost
Inactive Publication Date: 2019-09-24
大连联合高分子材料有限公司
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Problems solved by technology
[0003] The present invention improves the formulation of the existing heat-shrinkable sleeve by adding materials with high thermal conductivity, and solves the above-mentioned problems
Method used
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Embodiment 1
[0040] A method for preparing a superconducting heat-shrinkable heat-shrinkable sleeve, the preparation method comprising the steps of:
[0042] ②The heat-shrinkable masterbatch is extruded at an extrusion temperature of 165°C, cross-linked by electron accelerator irradiation, and continuously expanded at a high temperature of 160°C to obtain a superconducting heat-shrinkable heat-shrinkable sleeve.
Embodiment 2
[0044] A method for preparing a superconducting heat-shrinkable heat-shrinkable sleeve, the preparation method comprising the steps of:
[0045] ① Mix 40kg of linear low densitypolyethylene, 60kg of ethylene-vinyl acetatecopolymer, 15 parts of alumina, 20 parts of magnesium oxide, 1.2kg of antioxidant 300, 1.5kg of thermally conductive carbon black masterbatch, 0.3kg of lubricant erucamide , 0.3kg dispersed lubricant silicone masterbatch. Stir in a mixer for 20 minutes, then extrude and granulate in a twin-screw granulator at 155°C to make a heat-shrinkable masterbatch;
[0046] ②The heat-shrinkable masterbatch is extruded at an extrusion temperature of 165°C, cross-linked by electron accelerator irradiation, and continuously expanded at a high temperature of 160°C to obtain a superconducting heat-shrinkable heat-shrinkable sleeve.
Embodiment 3
[0048] A method for preparing a superconducting heat-shrinkable heat-shrinkable sleeve, the preparation method comprising the steps of:
[0049] ① Mix 50kg of linear low densitypolyethylene, 50kg of ethylene-vinyl acetate copolymer, 20 parts of alumina, 20 parts of magnesium oxide, 1.2kg of antioxidant 300, 1.5kg of thermally conductive carbon black masterbatch, 0.5kg of lubricant erucamide , 0.5kg dispersed lubricant silicone masterbatch. Stir in a mixer for 20 minutes, then extrude and granulate in a twin-screw granulator at 155°C to make a heat-shrinkable masterbatch;
[0050] ②The heat-shrinkable masterbatch is extruded at an extrusion temperature of 165°C, cross-linked by electron accelerator irradiation, and continuously expanded at a high temperature of 160°C to obtain a superconducting heat-shrinkable heat-shrinkable sleeve.
[0051] The superconducting thermal rapid shrinkage heat-shrinkable sleeve prepared by the above-mentioned embodiments 1-3 is made by adding hi...
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Abstract
The invention relates to a super-heat-conduction rapid shrunk heat-shrinkable bush and a preparation method thereof and belongs to the technical field of functional heat-shrinkable bushes. The super-heat-conduction rapid shrunk heat-shrinkable bush provided by the invention consists of the following components in parts by weight: 40 parts of linear low density polyethylene, 60 parts of an ethylene-vinyl acetatecopolymer, 15 parts of aluminum oxide, 20 parts of magnesiumoxide, 1.2 parts of an antioxidant 300, 1.5 parts of a heat conduction carbon black master batch, 0.3 part of a lubricanterucyl amide and 0.3 part of a lubricantsilicone master batch. Due to adoption of the linear low density polyethylene with a high heat conduction coefficient and low cost, aluminum oxide and magnesium oxide fillers with high heat conduction coefficients, and the heat conduction carbon black master batch, the overall heat conductivity of the super-heat-conduction rapid shrunk heat-shrinkable bush provided by the invention can be increased, the product can be uniformly and rapidly heated at a same heating temperature, the heat shrinkage efficiency can be improved, and meanwhile, the heat-shrinkable bush has uniform internal heat radiation in a high-temperature environment, and has physical properties which are better than those of common products with low heat conductivity.
Description
technical field [0001] The invention relates to a superconducting thermal rapid shrinkage heat shrinkable sleeve, which belongs to the technical field of functional heat shrinkable sleeves. Background technique [0002] In modern industry, there are more and more requirements for production efficiency and output per hour. Only by improving work efficiency and speeding up production can we make better use of limited energy consumption and produce more value. As a heat shrinkable sleeve user Of course, I hope to be able to complete the shrinkage faster when using the heat-shrinkable sleeve. If the wall thickness of the heat-shrinkable sleeve used is very large, when the heat shrinks, due to the plastic material, the internal heat conduction is slow, and the heat shrinkage speed will be caused. Slow, but at the same time can not reduce the wall thickness, otherwise it will lead to a decline in protection performance. In addition, the heat dissipation inside the sheath with hig...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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