High-temperature oil-resistant and flame-retardant chlorinated polyethylene heat-shrinkable tubing as well as preparation method and application thereof

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 cost reduction. Not environmentally friendly, the effect of excellent mechanical properties

Active Publication Date: 2014-04-09
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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  • High-temperature oil-resistant and flame-retardant chlorinated polyethylene heat-shrinkable tubing as well as preparation method and application thereof

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 in the following examples), 65kg of magnesium hydroxide, 20kg of melamine cyanurate and hydrotalcite 0.5kg was sequentially put into the refining chamber of the single-screw internal mixing granulator at 90°C for 6 minutes, followed by adding chlorinated polyethylene (CPE, with a chlorine content of 35% by mass, Weifang Jinyida Plastic Co., Ltd., The grade is CPE135A, the following examples are the same) 50kg, linear low density polyethylene (LLDPE, Saudi Basic Industries Corporation, grade 218-W, melt index 2g / 10min, density 0.918g / cm 3 , The following examples are the same) 10kg, ethylene-vinyl acetate copolymer (EVA, vinyl acetate content is 14% by mass, 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, the brand name is vistamaxx6102, the mass co...

Embodiment 2

[0067] (1) Take 20kg of antimony trioxide, 8kg of flame retardant synergist FRP-33, 70kg of magnesium hydroxide, 15kg of melamine pyrophosphate and 2kg of hydrotalcite and put them into the refining chamber of the single-screw banbury granulator. Mix for 5 minutes at ℃, then add 70kg of chlorinated polyethylene, acrylate rubber (DuPont, brand name Vamac G, Mooney viscosity ML100℃1+4 is 16.5MU (ASTM D1646), the same in the following examples) 5kg, ethylene -Vinyl acetate copolymer 30kg, ethylene-ethyl acrylate copolymer (EEA, DuPont, brand Elvaloy 2116, mass content of ethyl acrylate 16%, melt index 1.0g / 10min (ASTMD1238)) 5kg, 7kg polymerization Compatibility agent Polybond 3149, 5kg black mother BLACKII, 1.5kg zinc stearate, 1.5kg calcium stearate, 0.7kg antioxidant 1010, 0.4kg antioxidant TH412S, 1kg antioxidant 445, 0.4kg antioxidant 697 and 1.5kg of silicone additive TEGOMER H-Si6440P, banbury at 105℃ for 6min, add 1.5kg triallyl isocyanate and banbury at 105℃ for 5min, aut...

Embodiment 3

[0071] (1) Take 25kg of antimony trioxide, 12kg of flame retardant synergist FRP-33, 30kg of magnesium hydroxide and 3kg of hydrotalcite and put them into the mixing chamber of the single-screw internal granulator for banburying at 80°C for 4min. Then add 65kg of chlorinated polyethylene, 25kg of ethylene-vinyl acetate copolymer, 5kg of EPDM (Jilin Petrochemical, brand J-4045), 6kg of polymer compatibilizer Polybond3149, 6kg of black master BLACKII, 0.5kg of zinc stearate, 0.5kg of magnesium stearate, 1kg of antioxidant 1010, 1kg of antioxidant TH412S, 1.5kg of antioxidant 445, 0.5kg of antioxidant 697 and 1kg of silicone adjuvant TEGOMER H-Si6440P Banbury at 90℃ for 5min, then add 2kg triallyl isocyanate and banbury at 90℃ for 6min, automatically feed the above mixture to the granulating part of the single-screw internal mixer granulator, and extrude at 90~120℃ , Wire drawing, air cooling, and pelletizing;

[0072] (2) The above-mentioned pellets are extruded into a tube with a...

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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 oil-resistant flame-retardant heat-shrinkable sleeve, in particular to a high-temperature oil-resistant flame-retardant chlorinated polyethylene (CPE) heat shrinkable sleeve, and a preparation method and application thereof. Background technique [0002] The radiation cross-linked heat shrinkable material is a new type of polymer material with shape memory function, and an intelligent material that combines polymer materials and radiation processing technology. The resin substrates of heat shrinkable materials are mostly polyolefin resins, fluoropolymers, silicone rubbers, and other rubbers. Polyolefin heat-shrinkable materials have low cost and are easy to process and shape, but have poor oil resistance, acid and alkali corrosion resistance, and need to add a large amount of flame retardant to achieve a certain flame retardant level. Adding too much flame retardant will affect the mechanics of the final product. ...

Claims

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Application Information

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Patent Type & Authority Applications(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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