CN104962228A

CN104962228A - Double-ingredient aging-resistant polyurethane bonding agent and preparing method of double-ingredient aging-resistant polyurethane bonding agent

Info

Publication number: CN104962228A
Application number: CN201510408230.6A
Authority: CN
Inventors: 韩翔
Original assignee: Changzhou Wujin Xiang Yu Electronic Devices And Components Co Ltd
Current assignee: Changzhou Wujin Xiang Yu Electronic Devices And Components Co Ltd
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2015-10-07

Abstract

The invention discloses a double-ingredient aging-resistant polyurethane bonding agent and a preparing method of the double-ingredient aging-resistant polyurethane bonding agent. Through being metered in parts by weight, the double-ingredient polyurethane bonding agent consists of 100 to 120 parts of main agents A, 16 to 25 parts of curing agents B, 2 to 4 parts of trimethylolpropane, 30 to 50 parts of n-butyl acetate, 3 to 5 parts of stannous octoate, 4 to 6 parts of triethylamine, 5 to 8 parts of terephthalic acid copolymers, 3 to 5 parts of pentaerythritol, 0.2 to 0.4 part of ammonium persulfate and a proper amount of water. The main agents A consist of 15 to 20 parts of polyether polyol, 8 to 10 parts of dihydroxy half ester, 3 to 4 parts of dimethylolpropionic acid, 8 to 10 parts of diglycidyl ether, 2 to 3 parts of 1, 4- butanediol, 1 to 2 parts of acrylic acid and 2 to 3 parts of polycarbonate diols; the curing agents B consist of 8 to 10 parts of hexamethylene diisocyanate, 1 to 2 parts of dimethyl amine propylamine and 1 to 3 parts of tetramethyl alkylene diamine. The bonding agent has the advantages that the bonding intensity is higher, the peeling cannot occur after the bonding agents are used for a long time, high temperature-resistant performance and high weatherability are also realized, in addition, the process is simple, the production cost is low, the environment is protected, the use is convenient, and the bonding agent can be widely used in the field of soft package bonding.

Description

A kind of two component weather-resistant pu sizing agent and preparation method thereof

Technical field

The present invention relates to sizing agent technical field, is more particularly a kind of two component weather-resistant pu sizing agent and preparation method thereof.

Background technology

Sizing agent (adhesive): sticking and effect such as interior poly-grade by interface, natural or the synthesis that two or more product or material can be made to link together, an organic or inorganic class material, be referred to as sizing agent, be tamanori again, traditionally referred to as glue.In brief, sizing agent is exactly by adhesive effect, can make by the material sticking thing and combine." sizing agent " is general standard terminology, also comprises some other glue, clay, rubber cement, glue cream etc.

Urethane full name is polyurethane(s), is the general designation of the macromolecular cpd containing repetition carbamate groups on main chain.It is formed by organic diisocyanate or polyisocyanates and dihydroxyl or polyol addition polymerization.Polyurethane material, purposes is very wide, can replace rubber, plastics, nylon etc., for airport, hotel, building materials, automobile factory, colliery factory, cement mill, condo, villa, landscaping, colored stone art, park etc.Polyurethane products have three large advantages: draw and do not hinder, noiselessness.Long service life, reduces cost; Temperature tolerance is minus 20 degrees-high temperature 120 degree; Polyurethane products are pollution-free, nonpoisonous and tasteless.

But adhesive for polyurethane also exists the shortcoming of the low temperature tolerance of cohesive strength, ageing resistance difference at present, limits its use range.

Summary of the invention

The object of the invention is the deficiencies in the prior art in order to make up prior art, providing that a kind of cohesive strength is high, temperature tolerance, ageing-resistant good soft packaging two-component polyurethane adhesive stick agent and preparation method thereof.

The object of the invention is to be achieved through the following technical solutions:

A kind of two component weather-resistant pu sizing agent, with parts by weight, be made up of in right amount host A 100-120, solidifying agent B 16-25, TriMethylolPropane(TMP) 2-4, N-BUTYL ACETATE 30-50, stannous octoate 3-5, triethylamine 4-6, terephthaldehyde's acid copolymer 5-8, tetramethylolmethane 3-5, ammonium persulphate 0.2-0.4, water;

Described host A is made up of polyether glycol 15-20, dihydroxyl half ester 8-10, dimethylol propionic acid 3-4, diglycidylether 8-10, Di Iso Decyl Phthalate 12-15, beta-diketon 5-10, ammonium polyphosphate 5-10, ethene-vinyl acetate 10-15, ammonium polyphosphate 20-25, chlorosulfonated polyethylene 30-35, PCDL 2-3;

Described solidifying agent B is made up of hexamethylene diisocyanate 8-10, dimethyl amine propylamine 1-2, tetramethyl-Alkylenediamine 1-3.

A preparation method for pair component weather-resistant pu sizing agent, comprises the following steps:

(1) polyether glycol, PCDL are heated to 90-120 DEG C of reflux dewatering, are cooled to 40-60 DEG C, add dihydroxyl half ester, diglycidylether, then 55-80 DEG C is heated to, reaction 1-3h, adds BDO, vinylformic acid, dimethylol propionic acid stirs to obtain host A;

(2) hexamethylene diisocyanate, dimethyl amine propylamine, tetramethyl-Alkylenediamine are put into container, stir after being heated to 60-80 DEG C to obtain solidifying agent B;

(3) host A is joined in reactor, solidifying agent B, TriMethylolPropane(TMP), N-BUTYL ACETATE, stannous octoate, triethylamine is added after being heated to 50-70 DEG C, stir 0.5-1h, then 70-90 DEG C is heated to, add terephthaldehyde's acid copolymer, tetramethylolmethane and ammonium persulphate again, stir 1-2h, after vacuum defoamation, adopt refrigerating unit to be cooled to room temperature, through filtration devices, then adopt that automatic filling device is filling preserves.

The invention has the advantages that:

Sizing agent of the present invention not only has higher cohesive strength, and life-time service is not peeled off, and also has good temperature tolerance and weathering resistance, and technique is simple, and production cost is low, environmental protection, easy to use, can be widely used in the bonding field of soft packaging.Plasticizer and the ethylene-vinyl acetate copolymer of the Di Iso Decyl Phthalate that the present invention adds, beta-diketon, ammonium polyphosphate composition are arranged in pairs or groups, ageing resistance, processing characteristics is improved while improving mechanical property, increase snappiness, ammonium polyphosphate has the effect in condensed phase simultaneously.

Embodiment

Embodiment 1

A kind of two component weather-resistant pu sizing agent, is made up of in right amount host A 100 kg, solidifying agent B 16kg, TriMethylolPropane(TMP) 2kg, N-BUTYL ACETATE 30kg, stannous octoate 3kg, triethylamine 4kg, terephthaldehyde's acid copolymer 5kg, tetramethylolmethane 3kg, ammonium persulphate 0.2kg, water;

Described host A is made up of polyether glycol 15 kg, dihydroxyl half ester 8 kg, dimethylol propionic acid 3 kg, diglycidylether 8 kg, Di Iso Decyl Phthalate 12 kg, beta-diketon 5 kg, ammonium polyphosphate 5 kg, ethene-vinyl acetate 10 kg, ammonium polyphosphate 20 kg, chlorosulfonated polyethylene 30 kg, PCDL 2 kg;

Described solidifying agent B is made up of hexamethylene diisocyanate 8kg, dimethyl amine propylamine 1kg, tetramethyl-Alkylenediamine 1kg.

(2) hexamethylene diisocyanate, dimethyl amine propylamine, tetramethyl-Alkylenediamine are put into container, stir after being heated to 60 DEG C to obtain solidifying agent B;

(3) host A is joined in reactor, solidifying agent B, TriMethylolPropane(TMP), N-BUTYL ACETATE, stannous octoate, triethylamine is added after being heated to 50 DEG C, stir 1h, then 70 DEG C are heated to, add terephthaldehyde's acid copolymer, tetramethylolmethane and ammonium persulphate again, stir 2h, after vacuum defoamation, adopt refrigerating unit to be cooled to room temperature, through filtration devices, then adopt that automatic filling device is filling preserves.

Embodiment 2

A kind of two component weather-resistant pu sizing agent, is made up of in right amount host A 120kg, solidifying agent B 25kg, TriMethylolPropane(TMP) 4kg, N-BUTYL ACETATE 50kg, stannous octoate 5kg, triethylamine 6kg, terephthaldehyde's acid copolymer 8kg, tetramethylolmethane 5kg, ammonium persulphate 0.4kg, water;

Described host A is made up of polyether glycol 20 kg, dihydroxyl half ester 10 kg, dimethylol propionic acid 4 kg, diglycidylether 10 kg, Di Iso Decyl Phthalate 15 kg, beta-diketon 10 kg, ammonium polyphosphate 10 kg, ethene-vinyl acetate 15 kg, ammonium polyphosphate 25 kg, chlorosulfonated polyethylene 35 kg, PCDL 3 kg;

Described solidifying agent B is made up of hexamethylene diisocyanate 10kg, dimethyl amine propylamine 2kg, tetramethyl-Alkylenediamine 3kg.

(2) hexamethylene diisocyanate, dimethyl amine propylamine, tetramethyl-Alkylenediamine are put into container, stir after being heated to 80 DEG C to obtain solidifying agent B;

(3) host A is joined in reactor, solidifying agent B, TriMethylolPropane(TMP), N-BUTYL ACETATE, stannous octoate, triethylamine is added after being heated to 70 DEG C, stir 0.5h, then 90 DEG C are heated to, add terephthaldehyde's acid copolymer, tetramethylolmethane and ammonium persulphate again, stir 1h, after vacuum defoamation, adopt refrigerating unit to be cooled to room temperature, through filtration devices, then adopt that automatic filling device is filling preserves.

Plasticizer and the ethylene-vinyl acetate copolymer of the Di Iso Decyl Phthalate that the present invention adds, beta-diketon, ammonium polyphosphate composition are arranged in pairs or groups, ageing resistance, processing characteristics is improved while improving mechanical property, increase the snappiness of cable, ammonium polyphosphate has the effect in condensed phase simultaneously.

Claims

1. a two component weather-resistant pu sizing agent, it is characterized in that: with parts by weight, be made up of in right amount host A 100-120, solidifying agent B 16-25, TriMethylolPropane(TMP) 2-4, N-BUTYL ACETATE 30-50, stannous octoate 3-5, triethylamine 4-6, terephthaldehyde's acid copolymer 5-8, tetramethylolmethane 3-5, ammonium persulphate 0.2-0.4, water;

2. the preparation method of a kind of pair of component weather-resistant pu sizing agent according to claim 1, is characterized in that comprising the following steps:

(1) polyether glycol, PCDL are heated to 90-120 DEG C of reflux dewatering, be cooled to 40-60 DEG C, add dihydroxyl half ester, diglycidylether, then 55-80 DEG C is heated to, reaction 1-3h, adds Di Iso Decyl Phthalate, beta-diketon, ammonium polyphosphate, ethene-vinyl acetate, ammonium polyphosphate, chlorosulfonated polyethylene, dimethylol propionic acid stirs to obtain host A;