CN103571377B - A kind of anti-aging hot melt adhesive - Google Patents

Abstract

The invention discloses a kind of anti-aging hot melt adhesive, it is obtained by the raw material of following weight parts: novolac epoxy 4-6, silicone resin 3-5, urethane resin 2-4, acrylic resin 3-5, EVA60-70, polyethylene wax 3-5, water-ground limestone 5-9, barium stearate 1-2, ptfe micropowder 1-2, irgasfos 168? 1-2, Tetra hydro Phthalic anhydride 0.1-0.2, compounded mix 2-4, antioxidant BHT? 0.1-0.2, Radix Angelicae Sinensis oil 0.4-0.5; Oxidation inhibitor of the present invention adopts composite form, and oxidation inhibitor is dispersed in hot melt adhesive, and while the hot melt adhesive ageing resistance obtained is superior, viscosity is high, is particularly useful for the binding agent of automotive upholstery.

Description

A kind of anti-aging hot melt adhesive

Technical field

The invention belongs to binding agent field, particularly relate to a kind of anti-aging hot melt adhesive.

Background technology

In recent years, the application of the novel material such as matrix material and plastics on automobile made automobile stick with glue agent and the also sustainable growth of seal gum consumption, and wherein automotive upholstery is the field that tackiness agent consumption increases rapidly.The demand of Automotive upholstery hot melt adhesive gets more and more.

Summary of the invention

The object of this invention is to provide a kind of anti-aging hot melt adhesive.

The present invention adopts following technical scheme to achieve these goals:

A kind of anti-aging hot melt adhesive, it is characterized in that, it is obtained by the raw material of following weight parts:

Novolac epoxy 4-6, silicone resin 3-5, urethane resin 2-4, acrylic resin 3-5, EVA60-70, polyethylene wax 3-5, water-ground limestone 5-9, barium stearate 1-2, ptfe micropowder 1-2, irgasfos 168 1-2, Tetra hydro Phthalic anhydride 0.1-0.2, compounded mix 2-4, antioxidant BHT 0.1-0.2, Radix Angelicae Sinensis oil 0.4-0.5;

Compounded mix is obtained by the raw material of following weight parts: bauxitic clay 18-22, celestite powder 8-10, aluminium nitride 5-7, clorafin 1.2-1.6, antioxidant 1076 0.3-0.5, silane coupling agent KH7922.1-3.2, nano-sized carbon 1-2, magnesium oxide powder 1-2, silicon carbide 1-2, white carbon black 1-2,2-nonyl-phthalate ester 1-2, alkylphenol polyoxyethylene 0.4-0.6, N-Methyl pyrrolidone 1-2;

The preparation method of described compounded mix is: preparation method is after bauxitic clay, celestite powder being dodged in sudden strain of a muscle firing at 800-850 DEG C and burning 7-10 second, take out, add in suitable quantity of water in the lump with aluminium nitride, magnesium oxide powder, white carbon black and mix, in three-roll grinder, grind 1-2 hour again, then the sodium hydroxide solution adding 10-15% adjusts pH to be 8.7-9.8, after ground slurry to 400-500 order, add hydrochloric acid soln again and be adjusted to neutrality, drying, then mix with surplus stock, to obtain final product.

The anti-aging hot melt adhesive of described one, is characterized in that:

Preparation process is:

(1) EVA, water-ground limestone, compounded mix are put into blender and mixed for subsequent use;

(2) again antioxidant BHT, ptfe micropowder are put into blender and mixed for subsequent use;

(3), after all the other raw materials being put into blender mixing, twin screw extruder granulation, cooling and pelletizing, to obtain final product.

Beneficial effect of the present invention: oxidation inhibitor of the present invention adopts composite form, and oxidation inhibitor is dispersed in hot melt adhesive, while the hot melt adhesive ageing resistance obtained is superior, viscosity is high, is particularly useful for the binding agent of automotive upholstery.

Embodiment,

A kind of anti-aging hot melt adhesive, it is obtained by the raw material of following weight kg:

Novolac epoxy 5, silicone resin 5, urethane resin 2, acrylic resin 3, EVA70, polyethylene wax 5, water-ground limestone 7, barium stearate 1, ptfe micropowder 1, irgasfos 168 1, Tetra hydro Phthalic anhydride 0.2, compounded mix 4, antioxidant BHT 0.2, Radix Angelicae Sinensis oil 0.5;

Compounded mix is obtained by the raw material of following weight kg: bauxitic clay 18, celestite powder 10, aluminium nitride 5, clorafin 1.5, antioxidant 1076 0.5, silane coupling agent KH7922.5, nano-sized carbon 1, magnesium oxide powder 1, silicon carbide 2, white carbon black 1,2-nonyl-phthalate ester 1, alkylphenol polyoxyethylene 0.5, N-Methyl pyrrolidone 1;

The preparation method of described compounded mix is: bauxitic clay, celestite powder are dodged burning after 10 seconds by preparation method at 850 DEG C in sudden strain of a muscle firing, take out, add in suitable quantity of water in the lump with aluminium nitride, magnesium oxide powder, white carbon black and mix, again in three-roll grinder grind 2 hours, then add 15% sodium hydroxide solution adjust pH be 8.9, after ground slurry to 500 order, add hydrochloric acid soln again and be adjusted to neutrality, drying, then mix with surplus stock, to obtain final product.

The anti-aging hot melt adhesive of described one, preparation process is:

(1) EVA, water-ground limestone, compounded mix are put into blender and mixed for subsequent use;

(2) again antioxidant BHT, ptfe micropowder are put into blender and mixed for subsequent use;

(3), after all the other raw materials being put into blender mixing, twin screw extruder granulation, cooling and pelletizing, to obtain final product.

The apparent viscosity of the binding agent of the present embodiment is 4700MPa.s, stripping strength 51N/2.5cm ², initial bonding strength reaches No. 5 steel balls, open hour 38s, and within 24 hours, thermally-stabilised proterties is stablized.

Claims (1)

1. an anti-aging hot melt adhesive, is characterized in that, it is obtained by the raw material of following weight parts:

Novolac epoxy 4-6, silicone resin 3-5, urethane resin 2-4, acrylic resin 3-5, EVA60-70, polyethylene wax 3-5, water-ground limestone 5-9, barium stearate 1-2, ptfe micropowder 1-2, irgasfos 168 1-2, Tetra hydro Phthalic anhydride 0.1-0.2, compounded mix 2-4, antioxidant BHT 0.1-0.2, Radix Angelicae Sinensis oil 0.4-0.5;

Compounded mix is obtained by the raw material of following weight parts: bauxitic clay 18-22, celestite powder 8-10, aluminium nitride 5-7, clorafin 1.2-1.6, antioxidant 1076 0.3-0.5, silane coupling agent KH7922.1-3.2, nano-sized carbon 1-2, magnesium oxide powder 1-2, silicon carbide 1-2, white carbon black 1-2,2-nonyl-phthalate ester 1-2, alkylphenol polyoxyethylene 0.4-0.6, N-Methyl pyrrolidone 1-2;

The preparation method of described compounded mix is: preparation method is after bauxitic clay, celestite powder being dodged in sudden strain of a muscle firing at 800-850 DEG C and burning 7-10 second, take out, add in suitable quantity of water in the lump with aluminium nitride, magnesium oxide powder, white carbon black and mix, in three-roll grinder, grind 1-2 hour again, then the sodium hydroxide solution adding 10-15% adjusts pH to be 8.7-9.8, after ground slurry to 400-500 order, add hydrochloric acid soln again and be adjusted to neutrality, drying, then mix with surplus stock, to obtain final product;

The preparation process of described anti-aging hot melt adhesive is:

(1) EVA, water-ground limestone, compounded mix are put into blender and mixed for subsequent use;

(2) again antioxidant BHT, ptfe micropowder are put into blender and mixed for subsequent use;

(3), after all the other raw materials being put into blender mixing, twin screw extruder granulation, cooling and pelletizing, to obtain final product.