CN103509495A - Hot melt adhesive for cable accessories - Google Patents

Abstract

The invention discloses a hot melt adhesive for cable accessories. The hot melt adhesive is prepared from the following raw materials by weight: 100 parts of Sumitomo D4040 ethylene vinyl acetate (EVA), 20-30 parts of a polyolefin elastomer, 1-2 parts of diphenylamine, 1.5-2 parts of ascorbic acid, 1-2 parts of 2,6-di-tert-butyl-4-methylphenol, 5-8 parts of shell-lac, 9-15 parts of zinc borate, 5-8 parts of polyethylene, 1-2 parts of polyvinyl alcohol and 12-15 parts of composite filler.

Description

A kind of cable accessory hot melt adhesive

Technical field

The present invention relates to hot melt adhesive field, is exactly a kind of cable accessory hot melt adhesive.

Background technology

Hot melt adhesive is a kind of plastic tackiness agent, and in certain temperature range, its physical condition changes with temperature change, and chemical property is constant, and it is nonpoisonous and tasteless, belongs to environmental-protecting chemical product.

By ways such as blending, grafting, existing kind is carried out to modification to improve the performance of hot melt adhesive.For example stablizer is for anti-oxidation; Tackifier improve bonding strength; Paraffin reduces viscosity-modifying surface properties; Various fillers can improve viscosity, fusing point and bonding strength etc.Study kind, the consumption of various Synergist S-421 95s, and carry out formulation optimization to meet different demands.

Electric cable fitting (English name: be Cable Accessories) tie cable and the product of electric line and relevant power distribution unit, refer generally to the middle of various cables in cable line and connect and terminal connection, it forms power delivery networks together with cable; Cable accessory is mainly the characteristic according to the construction of cable, can recover the performance of cable, guarantees again the prolongation of cable length and the connection of terminal.By its purposes, be generally divided into terminal connection and middle connection, terminal connects and is divided into indoor terminal and outdoor terminal, and generalized case outdoor terminal refers to outdoor cable splice, and indoor terminal refers to the joint of indoor tie cable and electric installation; Middle connection is divided into two kinds of through type and insulations.

Summary of the invention

The object of the present invention is to provide a kind of cable accessory hot melt adhesive.

Above-mentioned purpose realizes by following scheme:

A kind of cable accessory hot melt adhesive, it is characterized in that: it is that raw material by following weight parts makes: SUMITOMO CHEMICAL D4040 EVA 100, polyolefin elastomer 20-30, pentanoic 1-2, xitix 1.5-2,2,6 di tert butyl 4 methyl phenol 1-2, shellac 5-8, zinc borate 9-15, polyethylene 5-8, polyvinyl alcohol 1-2, compounded mix 12-15;

Compounded mix is made by the raw material of following weight part:

Attapulgite 10-15, elutriation mud 15-25, coarse whiting 3-4, magnesium hydroxide 10-12, clorafin 2-3, trioctyl trimellitate 1-2, zinc oxide 1.5-2.5, Silane coupling agent KH550 1-2, sisal fibers 1-2;

The preparation method of compounded mix calcines 1-2 hour by attapulgite, coarse whiting at 800-850 ℃, take out, after mixing with elutriation mud, magnesium hydroxide, add in suitable quantity of water and grind, adding 10-15% hydrochloric acid soln tune PH is 4-5, and ground slurry is to 600-800 order, and repeated hydrogenation sodium oxide is adjusted to neutrality, spraying is dry, and gained powder mixes and get final product with other raw material.

Described a kind of cable accessory hot melt adhesive, is characterized in that:

Preparation method comprises the following steps:

(1) by weight SUMITOMO CHEMICAL D4040 EVA, polyolefin elastomer, pentanoic are mixed, under 800-900 rev/min, stir 15-25 minute, put into kneader at 190-210 ℃, mediate 12-23min, then add by weight shellac, at 180-190 ℃, mediate 10-20min, take out cooling;

(2), by the cooled sizing material of step (1) gained and all the other raw material blendings, twin screw extruder granulation at 180-195 ℃, takes out cooling and get final product.

Beneficial effect of the present invention is: viscosity of the present invention is high, and environmental protection is nontoxic, eluriates and turns waste into wealth adding of mud, economizes on resources.

Embodiment

A hot melt adhesive, it is that raw material by following weight kg makes: SUMITOMO CHEMICAL D4040 EVA 100, polyolefin elastomer 30, pentanoic 2, xitix 1.5,2,6 di tert butyl 4 methyl phenol 1, shellac 5, zinc borate 9, polyethylene 8, polyvinyl alcohol 1, compounded mix 12;

Compounded mix is made by the raw material of following weight kg:

Attapulgite 10, elutriation mud 18, coarse whiting 4, magnesium hydroxide 12, clorafin 2, trioctyl trimellitate 2, zinc oxide 1.8, Silane coupling agent KH550 2, sisal fibers 2;

The preparation method of compounded mix calcines attapulgite, coarse whiting 2 hours at 850 ℃, take out, after mixing with elutriation mud, magnesium hydroxide, add in suitable quantity of water and grind, adding 15% hydrochloric acid soln tune PH is 5, and after ground slurry to 800 order, repeated hydrogenation sodium oxide is adjusted to neutrality, spraying is dry, and gained powder mixes and get final product with other raw material.

Described a kind of cable accessory hot melt adhesive, preparation method comprises the following steps:

(1) by weight proportion SUMITOMO CHEMICAL D4040 EVA, polyolefin elastomer, pentanoic are mixed, under 840 revs/min, stir 25 minutes, put into kneader at 210 ℃, mediate 18min, then add by weight proportion shellac, at 190 ℃, mediate 20min, take out cooling;

(2), by the cooled sizing material of step (1) gained and all the other raw material blendings, twin screw extruder granulation at 188 ℃, takes out cooling and get final product.

The apparent viscosity of the binding agent of the present embodiment is 5300MPa.s, stripping strength 58N/2.5cm, and initial bonding strength reaches steel ball No. 5, open hour 44s, within 24 hours, thermally-stabilised proterties is stable.

Claims (2)

1. a cable accessory hot melt adhesive, it is characterized in that: it is that raw material by following weight parts makes: SUMITOMO CHEMICAL D4040 EVA 100, polyolefin elastomer 20-30, pentanoic 1-2, xitix 1.5-2,2,6 di tert butyl 4 methyl phenol 1-2, shellac 5-8, zinc borate 9-15, polyethylene 5-8, polyvinyl alcohol 1-2, compounded mix 12-15;

Compounded mix is made by the raw material of following weight part:

Attapulgite 10-15, elutriation mud 15-25, coarse whiting 3-4, magnesium hydroxide 10-12, clorafin 2-3, trioctyl trimellitate 1-2, zinc oxide 1.5-2.5, Silane coupling agent KH550 1-2, sisal fibers 1-2;

The preparation method of compounded mix calcines 1-2 hour by attapulgite, coarse whiting at 800-850 ℃, take out, after mixing with elutriation mud, magnesium hydroxide, add in suitable quantity of water and grind, adding 10-15% hydrochloric acid soln tune PH is 4-5, and ground slurry is to 600-800 order, and repeated hydrogenation sodium oxide is adjusted to neutrality, spraying is dry, and gained powder mixes and get final product with other raw material.

2. a kind of cable accessory hot melt adhesive according to claim 1, is characterized in that:

Preparation method comprises the following steps:

(1) by weight SUMITOMO CHEMICAL D4040 EVA, polyolefin elastomer, pentanoic are mixed, under 800-900 rev/min, stir 15-25 minute, put into kneader at 190-210 ℃, mediate 12-23min, then add by weight shellac, at 180-190 ℃, mediate 10-20min, take out cooling;

(2), by the cooled sizing material of step (1) gained and all the other raw material blendings, twin screw extruder granulation at 180-195 ℃, takes out cooling and get final product.