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Physical termite-proof high hard sheath material employing and preparation method thereof

An anti-termite, high-hardness technology, applied in the field of physical method anti-termite high-hardness sheath material and its preparation, can solve the problems of complex extrusion process and high price, and achieve the effect of wide source, easy to obtain, and low product cost

Active Publication Date: 2010-01-27
SHANGHAI KAIBO SPECIAL CABLE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the price of nylon 11 and nylon 12 is expensive, and the extrusion process is also complicated
Although the process of high-hardness special polyolefin is simple, such materials mainly rely on imports in China, and the price is relatively expensive.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Ultra-high molecular weight polyethylene (molecular weight is 9 million), processing modifiers, processing aids, primary antioxidant 1010, secondary antioxidant 168 and anti-ultraviolet masterbatch (Cabot carbon black masterbatch 2272), with formula As shown in Table 1, the performance is shown in Table 2.

[0023] Table 1

[0024] raw material name

parts by weight

Ultra-high molecular weight polyethylene (molecular weight is 9 million)

80

Ethylene Propylene Copolymer

20

Magnesium stearate

0.2

Antioxidant 1010

0.1

Antioxidant 168

0.15

Anti-ultraviolet Masterbatch

3

[0025] Preparation method: use ultra-high molecular weight polyethylene (molecular weight: 9 million) as the base material, add processing modifiers, processing aids, antioxidants and anti-ultraviolet masterbatches according to the weight ratio, mix evenly, and extrude through twin-screws out of granulation....

Embodiment 2

[0029] Ultra-high molecular weight polyethylene (molecular weight: 6 million), processing modifiers, processing aids, primary antioxidant 1010, secondary antioxidant 168 and anti-ultraviolet masterbatch (Cabot carbon black masterbatch 2272), specific formula As shown in Table 3, the preparation method is the same as in Example 1, and the properties are shown in Table 4.

[0030] table 3

[0031] raw material name

parts by weight

Ultra-high molecular weight polyethylene (molecular weight is 6 million)

75

Ethylene Propylene Copolymer

25

Magnesium stearate

0.2

Antioxidant 1010

0.1

Antioxidant 168

0.15

Anti-ultraviolet Masterbatch

3

[0032] Table 4

[0033] Hardness (Shore D)

Embodiment 3

[0035] Ultra-high molecular weight polyethylene (molecular weight is 5 million), processing modifier, processing aid, primary antioxidant 1010, secondary antioxidant 168 and anti-ultraviolet masterbatch (Cabot carbon black masterbatch 2272), preparation method With embodiment 1, specific formulation is as shown in table 5, and performance is as shown in table 6.

[0036] table 5

[0037] raw material name

parts by weight

Ultra-high molecular weight polyethylene (molecular weight of 5 million)

70

Ethylene Octene Copolymer

30

Zinc stearate

0.2

Antioxidant 1010

0.1

Antioxidant 168

0.15

Anti-ultraviolet Masterbatch

3

[0038] Table 6

[0039] Hardness (Shore D)

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PUM

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Abstract

The invention discloses a physical termite-proof high hard sheath material employing and a preparation method thereof; the physical termite-proof high hard sheath material comprises the following components and raw materials according to the parts by weight: 70-80 parts of ultrahigh molecular weight polyethylene, 20-30 parts of processing modifier, 0.2+ / -0.05 part of processing additive, 0.2+ / -0.05 part of antioxidant and 3+ / -0.5 parts of anti-ultraviolet master batch. The prepared termite-proof sheath material by the preparation method of the invention passes through termite-proof test (colony method) grade 2 and is mainly used to prepare cable sheath material which is used in regions of the south and tropics and regions with many termites and has termite-proof performance requirement.

Description

technical field [0001] The invention relates to a high-hardness sheath material for preventing termites by a physical method and a preparation method thereof. Background technique [0002] When the cable is used in areas with more termites in the southern tropics and humid tropics, the problem of biological damage to the outer sheath of the cable should be given great attention. If the termite-proof performance of the sheath material of the cable is not good, the termites will bite through the cable sheath layer, exposing the cable insulation layer to moisture, resulting in a decrease in insulation resistance and a single-phase grounding short circuit. What's more, termites continue to gnaw off the insulation layer to directly expose the cable conductors and cause cable line failures. [0003] The method of cable termite prevention is generally divided into chemical method and physical method. The chemical method is to add some insecticides such as chlordane, heptachlor, di...

Claims

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Application Information

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IPC IPC(8): C08L23/06C08K13/02C08K5/098C08K3/04B29B9/06B29C47/92B29C48/40B29C48/92
CPCB29C48/92B29C2948/92704B29C48/04B29C48/08B29C48/40B29C48/9185B29C2948/92895B29C2948/92904
Inventor 项健周光斌汪晓明
Owner SHANGHAI KAIBO SPECIAL CABLE FACTORY
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