A high temperature resistant oil flame retardant chlorinated polyethylene heat shrinkable sleeve and its preparation method and application

A chlorinated polyethylene and heat-shrinkable sleeve technology is applied in the field of high temperature resistant oil flame retardant chlorinated polyethylene (CPE) heat-shrinkable sleeve and its preparation, which can solve problems such as unseen research contents, and achieve cost reduction and guarantee The effect of processing thermal stability and excellent mechanical properties

Active Publication Date: 2016-04-27
广州凯恒科塑有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are very few heat-shrinkable products with chlorinated polyethylene as the main resin substrate prepared by electron irradiation processing technology on the market, and there is no relevant research content

Method used

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  • A high temperature resistant oil flame retardant chlorinated polyethylene heat shrinkable sleeve and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] (1) Take 7kg of antimony trioxide, 2kg of flame retardant synergist (FRP-33, Guangzhou Qiyuan Chemical Co., Ltd., the same as the following examples), 65kg of magnesium hydroxide, 20kg of melamine cyanurate and hydrotalcite Put 0.5kg into the mixing room of the single-screw banburying granulator in turn, banbury at 90°C for 6min, then add chlorinated polyethylene (CPE, the mass content of chlorine is 35%), Weifang Jinyida Plastic Co., Ltd. The brand is CPE135A, the following examples are the same) 50kg, linear low density polyethylene (LLDPE, Saudi Basic Industries Corporation, the brand is 218-W, the melt index is 2g / 10min, and the density is 0.918g / cm 3 , the following examples are the same) 10kg, ethylene-vinyl acetate copolymer (EVA, the content of vinyl acetate accounts for 14% by mass, the melt index is 3.5g / l0min, Japan Mitsui Group, the brand is P1405, the following examples are the same) 16kg, ethylene-octene copolymer (POE, ExxonMobil, grade vistamaxx6102, mas...

Embodiment 2

[0067] (1) Put 20kg of antimony trioxide, 8kg of flame retardant synergist FRP-33, 70kg of magnesium hydroxide, 15kg of melamine pyrophosphate and 2kg of hydrotalcite into the mixing room of the single-screw banburying granulator in sequence at 90 Mix at ℃ for 5 minutes, then add chlorinated polyethylene 70kg, acrylic rubber (DuPont, the brand is VamacG, Mooney viscosity ML100℃1+4 is 16.5MU (ASTMD1646), the following examples are the same) 5kg, ethylene-acetic acid Vinyl ester copolymer 30kg, ethylene-ethyl acrylate copolymer (EEA, DuPont, brand name Elvaloy2116, mass content of ethyl acrylate is 16%, melt index is 1.0g / 10min (ASTMD1238)) 5kg, 7kg polymer phase Compatibility agent Polybond3149, 5kg black mother BLACKII, zinc stearate 1.5kg, calcium stearate 1.5kg, 0.7kg antioxidant 1010, 0.4kg antioxidant TH412S, 1kg antioxidant 445, 0.4kg antioxidant 697 and 1.5kg of silicone additive TEGOMERH-Si6440P, banburying at 105°C for 6min, then adding 1.5kg of triallyl isocyanate and...

Embodiment 3

[0071] (1) Put 25kg of antimony trioxide, 12kg of flame retardant synergist FRP-33, 30kg of magnesium hydroxide and 3kg of hydrotalcite into the mixing room of the single-screw internal mixing granulator in sequence, and banbury at 80°C for 4 minutes, Then add 65kg of chlorinated polyethylene, 25kg of ethylene-vinyl acetate copolymer, EPDM (EPDM, Jilin Petrochemical, brand J-4045) 5kg, 6kg of polymer compatibilizer Polybond3149, 6kg of black mother BLACKII, Zinc stearate 0.5kg, magnesium stearate 0.5kg, 1kg antioxidant 1010, 1kg antioxidant TH412S, 1.5kg antioxidant 445, 0.5kg antioxidant 697 and 1kg silicone additive TEGOMERH-Si6440P at 90 Mix at ℃ for 5 minutes, then add 2kg of triallyl isocyanate and knead at 90℃ for 6 minutes, automatically feed the above mixture to the granulation part of the single-screw mixer granulator, extrude at 90-120℃, Wire drawing, air cooling, dicing;

[0072] (2) Extrude the above-mentioned granulated pellets into a tube with a screw extruder e...

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Abstract

The invention discloses high-temperature oil-resistant and flame-retardant chlorinated polyethylene heat-shrinkable tubing as well as a preparation method and an application thereof. The heat-shrinkable tubing comprises the following components: chlorinated polyethylene, resin A, resin B, a polymer compatibilizer, black masterbatch, antimonous oxide, a flame retardant synergist, a halogen-free flame retardant, a thermal stabilizer, hydrotalcite, an antioxidant, a sensitizer and a silicone additive. The method comprises the following steps: firstly, banburying the antimonous oxide, the flame retardant synergist, the halogen-free flame retardant and hydrotalcite; adding and banburying the chlorinated polyethylene, the resin A, the resin B, the polymer compatibilizer, the black masterbatch, the thermal stabilizer, the antioxidant and the silicone additive; finally adding a sensitizer and banburying, and then palatalizing, and extruding to form the tubing; and carrying out irradiation crosslinking, expanding drawing, cooling sizing, and marking, so as to obtain the high-temperature oil-resistant and flame-retardant chlorinated polyethylene heat-shrinkable tubing. The high-temperature oil-resistant and flame-retardant chlorinated polyethylene heat-shrinkable tubing has the advantages of being low in price, efficient, flame-retardant, excellent in mechanical property, low in pollution, high in high-temperature oil resistance, and good in resistance to acid and alkali corrosion, and can be applied to a bad working condition.

Description

technical field [0001] The invention relates to a high temperature resistant oil flame retardant heat shrinkable sleeve, in particular to a high temperature resistant oil flame retardant chlorinated polyethylene (CPE) heat shrinkable sleeve as well as its preparation method and application. Background technique [0002] Radiation cross-linking heat shrinkable material is a new type of polymer material with shape memory function, and it is an intelligent material that is combined with polymer material and radiation processing technology. The resin substrates of heat shrinkable materials are mostly polyolefin resins, fluoropolymers, silicone rubber, and other rubber materials. Polyolefin heat-shrinkable materials are low in cost and easy to process and shape, but have poor oil resistance, acid and alkali corrosion resistance, and need to add a large amount of flame retardants to achieve a certain level of flame retardancy. Adding too much flame retardants will affect the mecha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/28C08L23/08C08L23/20C08L23/16C08K13/02C08K3/22C08K3/26C08K5/098C08K5/134C08K5/18C08J3/28C08J3/24B29B9/06B29B7/28
CPCB29B7/286B29B9/06C08J3/246C08J3/28C08J2323/28C08K2201/014C08L23/286C08L2201/02C08L2201/08C08L2203/18C08L2205/025C08L2205/035C08L23/0815C08L23/0853C08L51/06C08K13/02C08K3/2279C08K2003/2224C08K5/34928C08K3/26C08K5/098C08L33/04C08L23/0869C08L23/16
Inventor 黄雷胡晖杨云飞冉祥海王飚郑凯航
Owner 广州凯恒科塑有限公司
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