CN101659838B - Neoprene latex adhesive and preparation method thereof - Google Patents
Neoprene latex adhesive and preparation method thereof Download PDFInfo
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- CN101659838B CN101659838B CN2009101741058A CN200910174105A CN101659838B CN 101659838 B CN101659838 B CN 101659838B CN 2009101741058 A CN2009101741058 A CN 2009101741058A CN 200910174105 A CN200910174105 A CN 200910174105A CN 101659838 B CN101659838 B CN 101659838B
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Abstract
The invention provides neoprene latex adhesive and a preparation method thereof. The adhesive comprises the following main components: neoprene latex, tackifier, zinc oxide water dispersing solution, promoting agent water dispersing solution, 2,6-di-tert-butyl paracresol, thickener, composite antifreezing agent, di(propylene glycol)butyl ether, defoaming agent and penetrating agent JFC. The invention has the advantage as follows: 1. the low temperature adhesive force is increased, xylene modified resin with cold resistant property can be used along with the neoprene latex adhesive so as to greatly increase the low temperature adhesive force and broaden the low temperature application field; 2. the antifreezing property is good, the low temperature storage of the neoprene latex adhesive is stable, composite antifreezing agent and di(propylene glycol)butyl ether are added so as to improve the antifreezing property and the low temperature storage stability; and 3. the water-based environmental protection system is adopted so as to reduce the pollution to the environment.
Description
Technical field
The present invention relates to watersoluble neoprene latex adhesive field.In particular, the present invention relates to a kind of neoprene latex adhesive that may be used for furniture industry, decorations industry and preparation method thereof.
Technical background
At present, the commercially available tackiness agent that is used for furniture industry, decorations industry mostly is solvent-based adhesive, and its main component is rubber, mixed solvent, tackifying resin.But, because the needs of environment protection, and for health and safe consideration to direct labor, human consumer, the organic solvent that contains in the solvent-based adhesive has been subjected to very big restriction.Therefore, people begin to have improved the degree of concern to non-solvent adhesive, neoprene latex adhesive is exactly wherein a kind of, be characterized in low toxic and environment-friendly, do not fire, no disaster hidden-trouble, no explosion hazard, easy to use, can bonding, cheap, the good weatherability of wet method, represented the developing direction of chloroprene rubber adhesive agent.Neoprene latex adhesive mainly is applicable to shoe industry, can be used for the bonding of polyvinyl chloride (PVC) flooring and cement plate, plank and top ceiling or decorative sheet, wall and revetment panelling in construction industry, also can be used for automobile decoration.In addition, the application on other mechanicals is also very extensive, as is used for the bonding etc. of the synthon such as laminated, polyester of binder for carpet backing, aluminium foil and polyvinyl chloride film and rubber.
People are to by the research of the water accack of polychloroprene latex preparation for a long time, and domestic patent provides the prescription of the polychloroprene latex composition with good colour fastness to light as the disclosed latex composition of CN1680484.External patent as: the disclosed water accack of Japanese Patent JP2004059895 has good tack and thermotolerance; The disclosed tackiness agent of Japanese Patent JP2005015717 is formed, show good cohesive strength and adhesive strength, have good initial cohesive strength, time-delay cohesive strength, hot strength, hygrometric state bonding strength simultaneously, and good processability, can harm not arranged to human body and environment yet; The production technique of U.S. Pat 2006063885 disclosed polychloroprene latexs and water accack thereof are formed, and its tackiness agent has good initial bonding strength, Joint strength and water tolerance.But relevant resistance to frost and the stable research of low tempertaure storage are not all mentioned in these researchs, so the application of corresponding product in low temperature environment can be restricted equally.
In addition, commercially available neoprene latex adhesive is a water-based adhesive at present, and it is poor that ubiquity resistance to frost, and the low tempertaure storage instability is freezed easily, is difficult to the normal shortcoming of using especially at low temperatures.Though the domestic related products that aspect the improvement of polychloroprene latex winter hardiness, has, CRL41F polychloroprene latex as Chongqing Changshou Chemical Industrial Co., Ltd.'s release, its cold-resistant temperature can reach-20 ℃, but it is mainly used in the manufacturing flexible products, and system is not dipped goods such as latex industry (medical) gloves.Therefore, need the neoprene latex adhesive that a kind of low tempertaure storage of exploitation is stable, freeze-proof is good.
Summary of the invention
A kind of neoprene latex adhesive of the present invention by the formula optimization method, is used the dimethylbenzene denatured resin with cold resistant property, and low-temperature adhesion power is significantly strengthened, and lower temperature application is wider general; Add compound antifreezing agent, dipropylene glycol monobutyl ether, can effectively improve resistance to frost and low tempertaure storage stability; Adopt the aqueous, environmental protective system, environmental pollution is little.
A kind of neoprene latex adhesive of the present invention is achieved in that by weight ratio and is:
60～90 parts of polychloroprene latexs
3～16 parts of tackifier
5～20 parts of Zinc oxide water dispersion liquids
0.06～1.8 part of promotor aqueous dispersions
0.6～4.5 part of 2,6 ditertiary butyl p cresol aqueous dispersions
0.3～15 part of thickening material
1～10 part of compound antifreezing agent
0.006～1 part of dipropylene glycol monobutyl ether
0.001～0.01 part of defoamer
0.001～0.01 part of penetrating agent JFC
Aforesaid polychloroprene latex is at least a in CRL40G water-base neoprene latex, CRL41I carboxylic chloroprene rubber latex, the CRL50G polychloroprene latex;
Aforesaid tackifier are for by weight ratio: dimethylbenzene denatured resin: Gum Rosin: emulsifying agent: soft water=1～3: 2～6: 0.5～3: 1～5, and mixing and ball milling evenly gets final product; Wherein the dimethylbenzene denatured resin is at least a among dimethylbenzene denatured resin NIKANOL L, the dimethylbenzene denatured resin NIKANOL LL; Wherein emulsifying agent is at least a in N-methyl glucamine, APG, the aliphatic acid polyethenoxy methyl ether;
Aforesaid Zinc oxide water dispersion liquid is for by weight ratio: zinc oxide: emulsifying agent: soft water=1～6: 1～6: 1～5, and mixing and ball milling evenly gets final product; Wherein emulsifying agent is at least a in N-methyl glucamine, APG, the aliphatic acid polyethenoxy methyl ether;
Aforesaid promotor aqueous dispersions is for by weight ratio: promotor: emulsifying agent: soft water=1～6: 1～6: 1～5, and mixing and ball milling evenly gets final product; Wherein promotor is ethylene thiourea, N, at least a in N-zinc-ethylphenyl dithiocarbamate, the zinc diethyldithiocarbamate; Wherein emulsifying agent is at least a in N-methyl glucamine, APG, the aliphatic acid polyethenoxy methyl ether;
Aforesaid 2,6 ditertiary butyl p cresol aqueous dispersions is for by weight ratio: 2,6 ditertiary butyl p cresol: emulsifying agent: soft water=1～6: 1～6: 1～5, and mixing and ball milling evenly gets final product; Wherein emulsifying agent is at least a in N-methyl glucamine, APG, the aliphatic acid polyethenoxy methyl ether;
Aforesaid thickening material is at least a in Walocel MT 20.000PV, polyacrylic acid, the casein;
Aforesaid compound antifreezing agent is for by weight ratio: sodium salicylate: leveling agent o: propylene glycol=0.1～2: 0.1～1: 3～10, and mix and get final product;
Aforesaid defoamer is at least a among Defoamer334, the Defoamer50A.
A kind of Preparation of Chloroprene Latex Adhesive method of the present invention:
By formulation weight part proportioning, polychloroprene latex is added in the reactor, under 200～500 rev/mins of rotating speeds, disperseed 5～30 minutes; Add Zinc oxide water dispersion liquid, 2,6 ditertiary butyl p cresol aqueous dispersions, compound antifreezing agent, dipropylene glycol monobutyl ether, under 300～800 rev/mins of rotating speeds, disperseed 10～45 minutes; Add tackifier, promotor aqueous dispersions, thickening material, under 200～800 rev/mins of rotating speeds, disperseed 10～35 minutes; Add defoamer and penetrating agent JFC, under 200～800 rev/mins of rotating speeds, disperseed the finished product discharging 10～60 minutes.
A kind of neoprene latex adhesive of the present invention characteristics compared with prior art are:
1. low-temperature adhesion power improves, and is used the dimethylbenzene denatured resin with cold resistant property, and low-temperature adhesion power is significantly strengthened, and lower temperature application is wider general;
2. resistance to frost is good, low tempertaure storage stable, adds compound antifreezing agent and dipropylene glycol monobutyl ether, has improved resistance to frost and low tempertaure storage stability;
3. adopt the aqueous, environmental protective system, environmental pollution is little.
Embodiment
The present invention will be described for following examples, but the present invention is not limited by these embodiment.The specific embodiment of the present invention is made amendment or the part technical characterictic is equal to replacement, and do not break away from the present invention program's spirit, it all should be encompassed in the middle of the technical scheme scope that the present invention asks for protection.
Embodiment 1
By formulation weight part proportioning, in 70 parts of adding reactors of polychloroprene latex CRL50G polychloroprene latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 6 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, compound antifreezing agent (by weight ratio: sodium salicylate: leveling agent o: propylene glycol=0.7: 0.3: 9, mix and get final product) 5 parts, 0.39 part of dipropylene glycol monobutyl ether, under 500 rev/mins of rotating speeds, disperseed 30 minutes; Add tackifier (by weight ratio: dimethylbenzene denatured resin NIKANOL L: Gum Rosin: aliphatic acid polyethenoxy methyl ether: soft water=2: 3: 3: 2, mixing and ball milling evenly gets final product) 8 parts, promotor aqueous dispersions are (by weight ratio: ethylene thiourea: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 9 parts of 0.4 parts, Walocel MT 20.000PV, under 500 rev/mins of rotating speeds, disperseed 30 minutes; Add 0.005 part of 0.005 part of Defoamer334 and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Embodiment 2
By formulation weight part proportioning, in 60 parts of adding reactors of polychloroprene latex CRL41I carboxylic chloroprene rubber latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 5 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, compound antifreezing agent are (by weight ratio: sodium salicylate: leveling agent o: propylene glycol=0.6: 0.2: 8, mix and get final product) 0.59 part of 6 part, dipropylene glycol monobutyl ether, under 500 rev/mins of rotating speeds, disperseed 15 minutes; Add tackifier (by weight ratio: dimethylbenzene denatured resin NIKANOL LL: Gum Rosin: APG: soft water=1: 4: 3: 2, mixing and ball milling evenly gets final product) 12 parts, promotor aqueous dispersions are (by weight ratio: ethylene thiourea: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 15 parts of 0.2 parts, polyacrylic acid, under 500 rev/mins of rotating speeds, disperseed 15 minutes; Add 0.005 part of 0.005 part of Defoamer50A and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Embodiment 3
By formulation weight part proportioning, in 77 parts of adding reactors of polychloroprene latex CRL40G water-base neoprene latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 7 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, compound antifreezing agent (by weight ratio: sodium salicylate: leveling agent o: propylene glycol=1: 1: 8, mix and get final product) 6 parts, 0.19 part of dipropylene glycol monobutyl ether, under 500 rev/mins of rotating speeds, disperseed 25 minutes; Add tackifier (by weight ratio: dimethylbenzene denatured resin NIKANOL L: Gum Rosin: N-methyl glucamine: soft water=4: 1: 3: 2, mixing and ball milling evenly gets final product) 6 parts, promotor aqueous dispersions are (by weight ratio: N, N-zinc-ethylphenyl dithiocarbamate: N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 2 parts of 0.6 parts, casein, under 500 rev/mins of rotating speeds, disperseed 25 minutes; Add 0.005 part of 3340.005 parts of organic Defoamer and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Embodiment 4
By formulation weight part proportioning, in 80 parts of adding reactors of polychloroprene latex CRL41I carboxyl type polychloroprene latex, open and stir, under 300 rev/mins of rotating speeds, disperseed 15 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 7 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, compound antifreezing agent (by weight ratio: sodium salicylate: leveling agent o: propylene glycol=0.7: 0.3: 7, mix and get final product) 3 parts, 0.19 part of dipropylene glycol monobutyl ether, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add tackifier (by weight ratio: dimethylbenzene denatured resin NIKANOL LL: Gum Rosin: aliphatic acid polyethenoxy methyl ether: soft water=2.5: 2.5: 3: 2, mixing and ball milling evenly gets final product) 6 parts, promotor aqueous dispersions are (by weight ratio: zinc diethyldithiocarbamate: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 2 parts of 0.6 parts, Walocel MT 20.000PV, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add 0.005 part of 0.005 part of Defoamer334 and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Embodiment 5
By formulation weight part proportioning, in 70 parts of adding reactors of polychloroprene latex CRL50G polychloroprene latex, under 300 rev/mins of rotating speeds, disperseed 10 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 6 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, compound antifreezing agent (by weight ratio: sodium salicylate: leveling agent o: propylene glycol=1.2: 0.5: 10, mix and get final product) 5 parts, 0.39 part of dipropylene glycol monobutyl ether, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add tackifier (by weight ratio: dimethylbenzene denatured resin NIKANOL L: Gum Rosin: aliphatic acid polyethenoxy methyl ether: soft water=3: 2: 3: 2, mixing and ball milling evenly gets final product) 8 parts, promotor aqueous dispersions are (by weight ratio: ethylene thiourea: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 9 parts of 0.4 parts, casein, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add 0.005 part of 0.005 part of Defoamer50A and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Comparative example 6
By weight ratio, in 70 parts of adding reactors of polychloroprene latex CRL50G polychloroprene latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 6 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add the Gum Rosin aqueous dispersions (by weight ratio: Gum Rosin: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 13 parts, promotor aqueous dispersions are (by weight ratio: ethylene thiourea: the aliphatic acid polyethenoxy methyl ether: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 9 parts of 0.79 parts, Walocel MT 20.000PV, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add 0.005 part of 3340.005 parts of Defoamer and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Comparative example 7
By weight ratio, in 70 parts of adding reactors of polychloroprene latex CRL40G water-base neoprene latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the APG agent: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 6 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add the Gum Rosin aqueous dispersions (by weight ratio: Gum Rosin: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 13 parts, promotor aqueous dispersions are (by weight ratio: N, N-zinc-ethylphenyl dithiocarbamate: APG: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 9 parts of 0.79 parts, casein, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add 0.005 part of 0.005 part of Defoamer50A and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
Comparative example 8
By weight ratio, in 80 parts of adding reactors of polychloroprene latex CRL40G water-base neoprene latex, under 300 rev/mins of rotating speeds, disperseed 5 minutes; Add the Zinc oxide water dispersion liquid (by weight ratio: zinc oxide: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 7 parts, 2,6-ditertbutylparacresol aqueous dispersions (by weight ratio: 2,6-ditertbutylparacresol: N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 1.2 parts, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add the Gum Rosin aqueous dispersions (by weight ratio: Gum Rosin: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 8 parts, promotor aqueous dispersions are (by weight ratio: zinc diethyldithiocarbamate: the N-methyl glucamine: soft water=5: 3: 2, mixing and ball milling evenly gets final product) 3 parts of 0.79 parts, Walocel MT 20.000PV, under 500 rev/mins of rotating speeds, disperseed 20 minutes; Add 0.005 part of 0.005 part of Defoamer334 and penetrating agent JFC, under 300 rev/mins of rotating speeds, disperseed the finished product discharging 30 minutes.
The correlated performance of the neoprene latex adhesive of embodiment 1～5, comparative example 6～8 adopts following method test.
1. freeze and touch stability testing method
Sample 50g is placed high 70mm, and internal diameter 40mm in the high-density polyethylene plastics bottle of wall thickness 2mm, builds lid, is put into and mixes up in the temperature required cold box freezing 10 hours.Take out freezing sample, be placed in the water bath with thermostatic control of (30 ± 0.5) ℃ and melted 1 hour, stir sample with glass stick.Increase to and lose flowability if melted back sample viscosity through 1 hour, or be fixed up, be placed in the water bath with thermostatic control of (60 ± 0.5) ℃ and continue thawing 1 hour.
If sample freezes after 16 hours to change, or viscosity has increase slightly, still can stir with glass stick, and it is qualified then to look freeze-thaw stability; If sample resilient attitude not after (30 ± 0.5) ℃ handle 1 hour, then freeze-thaw stability is defective.Need maybe can melt, still do not lose the use value of tackiness agent by (60 ± 0.5) ℃ sample of testing; Or, lose use value if melt but show scoriform; Maybe can not melt, complete breakdown of emulsion, these three kinds of situations all are considered as defective.
2. winter hardiness testing method
After the making sheet of compression shearing resistance (dry strength) test method, be placed in the low temperature environment.Model takes out from cold box after cold condition is handled, and makes its destruction in 30 seconds.
Reference standard: HG/T 2727-95 (venamul wood adhesive), appendix B " compression shear strength test method (refilling member).
It is as shown in table 1 below that the freezing of the neoprene latex adhesive gained of embodiment 1～5, comparative example 6～8 touches the stability test result.
Table 1
Annotate: √ is qualified in the table, * be defective.
The neoprene latex adhesive winter hardiness test result of embodiment 1～5, comparative example 6～8 is as shown in table 2 below.
Table 2
By table 1 and table 2 result as can be seen, a kind of neoprene latex adhesive of the present invention has overcome prior art (comparative example 6～8), and freeze-proof is poor, low tempertaure storage instability, low temperature are difficult to the normal problem of using down, low-temperature adhesion power is significantly strengthened, and lower temperature application is wider general.
Main raw material(s) title, technical indicator
1.CRL40G water-base neoprene latex
Total solid content (%): 〉=48
Viscosity (mPas) :≤23
Supplier: Chongqing Changshou Chemical Industrial Co., Ltd.
2.CRL41I carboxylic chloroprene rubber latex
Total solid content (%): 〉=48
Viscosity (mpas) :≤100
Supplier: Chongqing Changshou Chemical Industrial Co., Ltd.
3.CRL50G polychloroprene latex
Gu thing content (%): 〉=50
Viscosity (mpas) :≤40
Supplier: Chongqing Changshou Chemical Industrial Co., Ltd.
4. Gum Rosin
Specification: one-level
Outward appearance: light yellow or yellow brittle solid
Softening temperature (ring and ball method, ℃): 〉=74
Supplier: the intelligent Renhua worker in Guangzhou company limited
5. dimethylbenzene denatured resin NIKANOL L, dimethylbenzene denatured resin NIKANOL LL
Manufacturer: Mitsui gas Co., Ltd.
6. ethylene thiourea
Outward appearance: white or little yellow crystalline powder
Relative density: 1.41～1.45
Purity (%): 〉=98
7.N, the N-zinc-ethylphenyl dithiocarbamate
Outward appearance: white or yellow powder
Relative density: 1.50
Purity (%): 〉=98
8. zinc diethyldithiocarbamate
Outward appearance: white or buff powder
Relative density: 1.49
Purity (%): 〉=98
9.2, the 6-ditertbutylparacresol
Rank: technical grade
Content (%): 〉=98
Supplier: Nanjing Datang chemical industry limited liability company
10. Walocel MT 20.000PV
Rank: technical grade
Outward appearance: white or little yellow fibers sprills or particle
Supplier: chemical company can be helped in Tianjin
11. polyacrylic acid
Rank: technical grade
Outward appearance: colourless or weak yellow liquid
Supplier: chemical industry company limited of Guoan
12. casein
Rank: technical grade
Outward appearance: thickness weak yellow liquid
Supplier: Guangzhou sky latitude Chemical Industry Science Co., Ltd
13.N-methyl glucamine
Content (%): 〉=50
Supplier: China Daily Chemical Industry Research Institute
14. APG
Outward appearance: light yellow liquid or lotion
PH value: 7.5～9.5
Supplier: rising sun company limited in the Guangzhou
15. aliphatic acid polyethenoxy methyl ether
Active matter content (%): 〉=99
Supplier: Jiangsu "four news" (new ideas interfacial agents Science and Technology Ltd.
16. sodium salicylate
Rank: technical grade
Outward appearance: baby pink is to the light brown crystalline powder
Supplier: Huayin City, Shaanxi Province brocade future pharmaceutcal corporation, Ltd
17. leveling agent o
Outward appearance: white plates
PH value (1% aqueous solution): 6～8
Stability: stable in the hard water acid-base solution
Supplier: the Shaoxin City great chemical industry of gold company limited
18. propylene glycol
Rank: technical grade
19.Defoamer?334
Outward appearance: faint yellow opaque liq
Supplier: Shenzhen Haichuan Chemical Technology Co., Ltd
20.Defoamer50A
Outward appearance: light yellow liquid
Supplier: Shenzhen Haichuan Chemical Technology Co., Ltd
21. dipropylene glycol monobutyl ether
Purity (%): 〉=98.5
Supplier: Guangzhou big uncle chemical industry company limited
22. penetrating agent JFC
Content (%): 〉=99
Supplier: roc chemical industry company limited is opened in the Guangzhou.
Claims (8)
1. a neoprene latex adhesive is characterised in that, is by weight ratio:
Described tackifier are for by weight ratio: dimethylbenzene denatured resin: Gum Rosin: emulsifying agent: soft water=1～3: 2～6: 0.5～3: 1～5, and mixing and ball milling evenly gets final product; Compound antifreezing agent is for by weight ratio: sodium salicylate: levelling agent 0: ethylene glycol=0.1～2: 0.1～1: 3～10, and mix and get final product.
2. a kind of neoprene latex adhesive as claimed in claim 1 is characterised in that, polychloroprene latex is at least a in CRL40G water-base neoprene latex, CRL41I carboxylic chloroprene rubber latex, the CRL50G polychloroprene latex.
3. a kind of neoprene latex adhesive as claimed in claim 1 is characterised in that, the dimethylbenzene denatured resin is at least a among dimethylbenzene denatured resin NIKANOL L, the dimethylbenzene denatured resin NIKANOL LL in the tackifier.
4. a kind of neoprene latex adhesive as claimed in claim 1 is characterised in that, the promotor aqueous dispersions by weight ratio: promotor: emulsifying agent: soft water=1～6: 1～6: 1～5, mixing and ball milling evenly gets final product; Wherein promotor is ethylene thiourea, N, at least a in N-zinc-ethylphenyl dithiocarbamate, the zinc diethyldithiocarbamate.
5. as claim 1,4 arbitrary described a kind of neoprene latex adhesives, be characterised in that emulsifying agent is at least a in N-methyl glucamine, APG, the aliphatic acid polyethenoxy methyl ether.
6. a kind of neoprene latex adhesive as claimed in claim 1 is characterised in that, thickening material is at least a in Walocel MT 20.000PV, polyacrylic acid, the casein.
7. a kind of neoprene latex adhesive as claimed in claim 1 is characterised in that, defoamer is at least a among Defoamer 334, the Defoamer50A.
8. a kind of Preparation of Chloroprene Latex Adhesive method as claimed in claim 1 is characterised in that, by formulation weight part proportioning, polychloroprene latex is added in the reactor, under 200～500 rev/mins of rotating speeds, disperses 5～30 minutes; Add Zinc oxide water dispersion liquid, 2,6 ditertiary butyl p cresol aqueous dispersions, compound antifreezing agent, dipropylene glycol monobutyl ether, under 300～800 rev/mins of rotating speeds, disperseed 10～45 minutes; Add tackifier, promotor aqueous dispersions, thickening material, under 200～800 rev/mins of rotating speeds, disperseed 10～35 minutes; Add defoamer and penetrating agent JFC, under 200～800 rev/mins of rotating speeds, disperseed the finished product discharging 10～60 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101741058A CN101659838B (en) | 2009-09-24 | 2009-09-24 | Neoprene latex adhesive and preparation method thereof |
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|---|---|---|---|
| CN2009101741058A CN101659838B (en) | 2009-09-24 | 2009-09-24 | Neoprene latex adhesive and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101659838A CN101659838A (en) | 2010-03-03 |
| CN101659838B true CN101659838B (en) | 2011-08-10 |
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| CN2009101741058A Active CN101659838B (en) | 2009-09-24 | 2009-09-24 | Neoprene latex adhesive and preparation method thereof |
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| CN103539948B (en) * | 2012-07-12 | 2016-01-20 | 中国石油天然气股份有限公司 | A kind of preparation method of high-tenacity adhesion type powdered polychloroprene rubber |
| GB201214734D0 (en) * | 2012-08-17 | 2012-10-03 | Knauf Insulation Ltd | Wood board and process for its production |
| CN106244103B (en) * | 2016-08-15 | 2018-02-06 | 广东三和化工科技有限公司 | A kind of glue spraying and preparation method thereof |
| CN106398583A (en) * | 2016-08-30 | 2017-02-15 | 无锡万能胶粘剂有限公司 | All-purpose adhesive being able to control bugs |
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