CN103571385A - Cold-resistant hot melt adhesive - Google Patents

Abstract

The invention discloses a cold-resistant hot melt adhesive which is prepared by the following raw materials in parts by weight: 1.5-3.2 parts of a silane coupling agent KH792, 3-5 parts of dioctyl sebacate, 1-2 parts of cashew nut shell oil, 6-8 parts of polyethylene (PE) wax, 1-2 parts of an antioxidant 626, 18-20 parts of C5 petroleum resin, 8-10 parts of thermoplastic styrene-butadiene rubber, 0.2-0.4 part of aluminium oxide, 0.1-0.2 part of nano-zinc oxide, 0.5-0.7 part of sodium tripolyphosphate, 2-4 parts of dioctyl adipate, 30-40 parts of Japanese Asahi Kasei EF1531 ethylene-vinyl acetate copolymer (EVA) and 2-4 parts of a composite filler.

Description

Cold-resistant hot melt adhesive

Technical field

The invention belongs to binding agent field, relate in particular to a kind of cold-resistant 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.

People's custom was regarded automotive upholstery as the annex of vehicle body in the past, this several years high speed developments along with Domestic Automotive Industry, automotive upholstery is in the development of advancing by leaps and bounds, become project with fastest developing speed in trolley part, the requirement of human consumer's to interior is more and more higher, making automotive upholstery is the field that appellation tackiness agent consumption increases rapidly, and the demand of automotive upholstery hot melt adhesive was more and more in recent years.

Summary of the invention

The object of this invention is to provide a kind of cold-resistant hot melt adhesive.

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

A hot melt adhesive, is characterized in that, it is that raw material by following weight parts makes:

Silane coupling agent KH792 1.5-3.2, dioctyl sebacate 3-5, cashew nut shell oil 1-2; PE wax 6-8; oxidation inhibitor 626 1-2, C5 petroleum resin 18-20; thermoplastic styrene butadiene rubber 8-10; aluminium sesquioxide 0.2-0.4, nano zine oxide 0.1-0.2; tripoly phosphate sodium STPP 0.5-0.7, Octyl adipate 2-4, the Japanese EF1531 EVA 30-40 of Asahi Chemical Industry, compounded mix 2-4;

Described compounded mix is made by the raw material of following weight parts: hollow ceramic microspheres 5-8, ground barium sulfate 22-28, oyster shell whiting 8-10, kaolin 6-12, Radix Angelicae Sinensis oil 1-2, dinoctyl phthalate 0.2-0.4, laureth sodium sulfovinate 0.4-0.6, dinoctyl phthalate 0.1-0.2, Graphite Powder 99 1-2, red mud 1-2, alkylphenol polyoxyethylene 0.4-0.6, N-Methyl pyrrolidone 0.1-0.2, silane coupling agent DL171 0.6-0.8, aluminium nitride 0.2-0.4,

The preparation method of described compounded mix is: preparation method mixes ground barium sulfate, oyster shell whiting, at 900-950 ℃, calcine 1-2 hour, then, take out, add in suitable quantity of water and mix in the lump with hollow ceramic microspheres, three-roll grinder grinds 1-2 hour, and adding 10-15% sodium hydroxide solution tune PH is 8-8.5, and ground slurry is to 700-800 order, add again hydrochloric acid soln and be adjusted to neutrality, dry, then mix with surplus stock, ground and mixed evenly and get final product.

Described a kind of cold-resistant hot melt adhesive, is characterized in that:

Preparation method is: kneader is preheated to wall temperature 168-178 ℃, then add the Japanese EF1531 EVA of Asahi Chemical Industry, C5 petroleum resin, thermoplastic styrene butadiene rubber, cashew nut shell oil, mediate 7-10min, after add surplus stock, at 180-195 ℃, mediate 15-20min, take out cooling and get final product.

Beneficial effect of the present invention: cold tolerance of the present invention is strong, under severe cold environment, cohesive strength can significantly not decline, and life-span while is long, and preparation method is simple.

Embodiment

A hot melt adhesive, it is that raw material by following weight kg makes:

Silane coupling agent KH792 3.2, dioctyl sebacate 5, cashew nut shell oil 1; PE wax 8; oxidation inhibitor 626 1, C5 petroleum resin 20; thermoplastic styrene butadiene rubber 10; aluminium sesquioxide 0.4, nano zine oxide 0.1; tripoly phosphate sodium STPP 0.7, Octyl adipate 4, the Japanese EF1531 EVA of Asahi Chemical Industry 30, compounded mix 4;

Described compounded mix is made by the raw material of following weight kg: hollow ceramic microspheres 8, ground barium sulfate 28, oyster shell whiting 10, kaolin 12, Radix Angelicae Sinensis oil 1, dinoctyl phthalate 0.4, laureth sodium sulfovinate 0.6, dinoctyl phthalate 0.2, Graphite Powder 99 1, red mud 2, alkylphenol polyoxyethylene 0.6, N-Methyl pyrrolidone 0.2, silane coupling agent DL171 0.8, aluminium nitride 0.4,

The preparation method of described compounded mix is: preparation method mixes ground barium sulfate, oyster shell whiting, at 900 ℃, calcine 2 hours, then, take out, add in suitable quantity of water and mix in the lump with hollow ceramic microspheres, three-roll grinder grinds 2 hours, and adding 15% sodium hydroxide solution tune PH is 8.5, after ground slurry to 800 order, add again hydrochloric acid soln and be adjusted to neutrality, dry, then mix with surplus stock, ground and mixed evenly and get final product.

Described a kind of cold-resistant hot melt adhesive,

Preparation method is: kneader is preheated to 178 ℃ of wall temperatures, then add the Japanese EF1531 EVA of Asahi Chemical Industry, C5 petroleum resin, thermoplastic styrene butadiene rubber, cashew nut shell oil, mediate 10min, after add surplus stock, at 185 ℃, mediate 20min, take out cooling and get final product.

The apparent viscosity of the binding agent of the present embodiment is 4900MPa.s, stripping strength 53N/2.5cm ², initial bonding strength reaches steel ball No. 5, open hour 38s, and within 24 hours, thermally-stabilised proterties is stable.

Claims (2)

1. a cold-resistant hot melt adhesive, is characterized in that, it is that raw material by following weight parts makes:

Silane coupling agent KH792 1.5-3.2, dioctyl sebacate 3-5, cashew nut shell oil 1-2; PE wax 6-8; oxidation inhibitor 626 1-2, C5 petroleum resin 18-20; thermoplastic styrene butadiene rubber 8-10; aluminium sesquioxide 0.2-0.4, nano zine oxide 0.1-0.2; tripoly phosphate sodium STPP 0.5-0.7, Octyl adipate 2-4, the Japanese EF1531 EVA 30-40 of Asahi Chemical Industry, compounded mix 2-4;

Described compounded mix is made by the raw material of following weight parts: hollow ceramic microspheres 5-8, ground barium sulfate 22-28, oyster shell whiting 8-10, kaolin 6-12, Radix Angelicae Sinensis oil 1-2, dinoctyl phthalate 0.2-0.4, laureth sodium sulfovinate 0.4-0.6, dinoctyl phthalate 0.1-0.2, Graphite Powder 99 1-2, red mud 1-2, alkylphenol polyoxyethylene 0.4-0.6, N-Methyl pyrrolidone 0.1-0.2, silane coupling agent DL171 0.6-0.8, aluminium nitride 0.2-0.4,

The preparation method of described compounded mix is: preparation method mixes ground barium sulfate, oyster shell whiting, at 900-950 ℃, calcine 1-2 hour, then, take out, add in suitable quantity of water and mix in the lump with hollow ceramic microspheres, three-roll grinder grinds 1-2 hour, and adding 10-15% sodium hydroxide solution tune PH is 8-8.5, and ground slurry is to 700-800 order, add again hydrochloric acid soln and be adjusted to neutrality, dry, then mix with surplus stock, ground and mixed evenly and get final product.

2. a kind of cold-resistant hot melt adhesive according to claim 1, is characterized in that:

Preparation method is: kneader is preheated to wall temperature 168-178 ℃, then add the Japanese EF1531 EVA of Asahi Chemical Industry, C5 petroleum resin, thermoplastic styrene butadiene rubber, cashew nut shell oil, mediate 7-10min, after add surplus stock, at 180-195 ℃, mediate 15-20min, take out cooling and get final product.