CN101659838B - Neoprene latex adhesive and preparation method thereof - Google Patents

Abstract

The invention provides a neoprene latex adhesive and a preparation method thereof. The adhesive comprises the following main components: neoprene latex, tackifier, zinc oxide water dispersion, accelerator water dispersion, 2, 6-di-tert-butyl-p-cresol water dispersion, thickener, composite antifreeze, dipropylene glycol monobutyl ether, defoamer and penetrating agent JFC. The present invention has: 1. the low-temperature adhesive force is improved, and the xylene modified resin with cold resistance is used in a matching manner, so that the low-temperature adhesive force is greatly enhanced, and the low-temperature application range is wider; 2. the antifreezing property is good, the low-temperature storage is stable, and the antifreezing property and the low-temperature storage stability are improved by adding the composite antifreezing agent and the dipropylene glycol monobutyl ether; 3. and a water-based environment-friendly system is adopted, so that the environmental pollution is small.

Description

A kind of chloroprene latex adhesive and preparation method thereof

technical field

The invention relates to the field of water-based neoprene latex adhesives. More specifically, the present invention relates to a kind of neoprene latex adhesive that may be used in furniture industry and decoration industry and its preparation method.

technical background

At present, most of the commercially available adhesives used in the furniture industry and decoration industry are solvent-based adhesives, whose main components are rubber, mixed solvents, and tackifying resins. However, due to the need for environmental protection, as well as considerations for the hygiene and safety of production workers and consumers, the organic solvents contained in solvent-based adhesives are greatly restricted. Therefore, people began to pay more attention to non-solvent adhesives. Neoprene latex adhesive is one of them. It is characterized by low toxicity and environmental protection, non-flammable, no fire hazard, no explosion hazard, easy to use, and can be wet bonded. , low price, good weather resistance, represents the development direction of neoprene adhesives. Neoprene latex adhesives are mainly used in the shoe industry, and in the construction industry, they can be used for bonding PVC floors and cement boards, wood boards and ceilings or decorative boards, walls and parapet panels, and can also be used for car decoration. In addition, it is also widely used in other industrial products, such as carpet backing adhesives, lamination of aluminum foil and polyvinyl chloride film, and bonding of synthetic fibers such as polyester and rubber.

People have been researching on the water-based adhesive prepared by chloroprene latex for a long time. Domestic patents such as the latex composition disclosed in CN1680484 provide the formula of the chloroprene latex composition with excellent light fastness. Foreign patents such as: the water-based adhesive disclosed in Japanese patent JP2004059895 has good initial tack and heat resistance; the adhesive composition disclosed in Japanese patent JP2005015717 shows good cohesive strength and adhesive strength, and has good initial cohesion Strength, delayed cohesion strength, high temperature strength, wet state bonding strength, and good processing performance, will not be harmful to the human body and the environment; the production process of neoprene latex and its water-based adhesive composition disclosed in US Patent US2006063885, Its adhesive has good initial tack, bonding strength and water resistance. However, none of these studies mentioned research on antifreeze performance and low-temperature storage stability, so the application of corresponding products in low-temperature environments will also be limited.

In addition, the currently commercially available neoprene latex adhesives are water-based adhesives, which generally have the disadvantages of poor antifreeze performance, unstable storage at low temperatures, easy freezing, and difficulty in normal use especially at low temperatures. Although there are related products in China to improve the cold resistance of neoprene latex, such as the CRL41F neoprene latex launched by Chongqing Changshou Chemical Co., Ltd., its cold resistance temperature can reach -20°C, but it is mainly used to make soft products. It is dipped products such as latex industrial (medical) gloves. Therefore, it is necessary to develop a neoprene latex adhesive that is stable in low temperature storage and good in freeze resistance.

Contents of the invention

A kind of chloroprene latex adhesive of the present invention, through formula optimization method, cooperates with xylene denatured resin with cold-resistant characteristic, low-temperature adhesive force is greatly strengthened, and low-temperature application range is wider; Add composite antifreeze agent, dipropylene glycol monobutyl ether , can effectively improve the antifreeze performance and low temperature storage stability; the water-based environmental protection system has little environmental pollution.

A kind of chloroprene latex adhesive of the present invention is realized like this, proportioning by weight is:

Neoprene latex 60～90 parts

Tackifier 3～16 parts

Zinc oxide aqueous dispersion 5～20 parts

Accelerator aqueous dispersion 0.06～1.8 parts

2,6-di-tert-butyl-p-cresol aqueous dispersion 0.6～4.5 parts

Thickener 0.3～15 parts

Composite antifreeze 1~10 parts

Dipropylene glycol monobutyl ether 0.006～1 part

Defoamer 0.001～0.01 parts

Penetrant JFC 0.001～0.01 parts

The above-mentioned neoprene latex is at least one of CRL40G water-based neoprene latex, CRL41I carboxyl neoprene latex, CRL50G neoprene latex;

The tackifier as mentioned above is proportioning by weight: xylene denatured resin: rosin resin: emulsifier: soft water=1～3: 2～6: 0.5～3: 1～5, mixing and ball milling get final product; wherein The xylene denatured resin is at least one of xylene denatured resin NIKANOL L and xylene denatured resin NIKANOL LL; wherein the emulsifier is at least one of N-alkylglucamide, alkyl polyglucoside, fatty acid polyoxyethylene methyl ether kind;

The above-mentioned zinc oxide aqueous dispersion is proportioned by weight: zinc oxide: emulsifier: soft water = 1 ~ 6: 1 ~ 6: 1 ~ 5, just mix and ball mill evenly; wherein the emulsifier is N-alkyl At least one of glucosamide, alkyl polyglucoside, fatty acid polyoxyethylene methyl ether;

The water dispersion of the above-mentioned accelerator is proportioned by weight: accelerator: emulsifier: soft water = 1 ~ 6: 1 ~ 6: 1 ~ 5, just mix and ball mill evenly; wherein the accelerator is ethylene sulfide At least one of urea, N, N-ethylphenyl zinc dithiocarbamate, and zinc diethyldithiocarbamate; wherein the emulsifier is N-alkylglucamide, alkyl polyglycoside, fatty acid poly At least one of oxyethylene methyl ether;

The above-mentioned 2,6-di-tert-butyl-p-cresol aqueous dispersion is proportioned by weight: 2,6-di-tert-butyl-p-cresol: emulsifier: soft water=1～6:1～6: 1 to 5, just mix and ball mill evenly; wherein the emulsifier is at least one of N-alkylglucamide, alkyl polyglucoside, fatty acid polyoxyethylene methyl ether;

The above thickener is at least one of hydroxymethyl cellulose, polyacrylic acid, and casein;

The composite antifreeze agent as mentioned above is proportioned by weight: sodium salicylate: leveling agent O: propylene glycol = 0.1～2: 0.1～1: 3～10, just mix evenly;

The defoamer mentioned above is at least one of Defoamer334 and Defoamer50A.

A kind of preparation method of chloroprene latex adhesive of the present invention:

Add chloroprene latex into the reaction kettle according to the weight ratio of the formula, and disperse for 5 to 30 minutes at a speed of 200 to 500 rpm; add zinc oxide aqueous dispersion, 2,6-di-tert-butyl p-cresol Water dispersion, compound antifreeze agent, dipropylene glycol monobutyl ether, at 300-800 rpm, disperse for 10-45 minutes; add tackifier, accelerator water dispersion, thickener, at 200-800 Disperse for 10-35 minutes at the speed of rotation per minute; add defoamer and penetrant JFC, and disperse for 10-60 minutes at the speed of 200-800 rotations per minute, and the finished product is discharged.

A kind of chloroprene latex adhesive of the present invention is characterized in comparison with prior art:

1. The low-temperature adhesive force is improved, and the low-temperature adhesive force is greatly enhanced by using xylene-modified resin with cold resistance characteristics, and the low-temperature application range is wider;

2. Good antifreeze performance, stable low temperature storage, adding compound antifreeze agent and dipropylene glycol monobutyl ether, improved antifreeze performance and low temperature storage stability;

3. The water-based environmental protection system is adopted, which has little pollution to the environment.

Detailed ways

The following examples illustrate the invention, but the invention is not limited by these examples. Modifications to the specific implementation of the present invention or equivalent replacement of some technical features without departing from the spirit of the present invention should be included in the scope of the technical solution claimed in the present invention.

Example 1

According to the formula weight ratio, 70 parts of neoprene latex CRL50G neoprene latex are added in the reactor, and at 300 rev/min rotating speed, disperse for 5 minutes; Add zinc oxide aqueous dispersion (proportion by weight: zinc oxide: Fatty acid polyoxyethylene methyl ether: soft water = 5: 3: 2, just mix and ball mill evenly) 6 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6-di tert-butyl-p-cresol: fatty acid polyoxyethylene methyl ether: soft water=5:3:2, mix and ball mill evenly) 1.2 parts, compound antifreeze (proportioning by weight: sodium salicylate: leveling agent O: propylene glycol = 0.7: 0.3: 9, just mix well) 5 parts, dipropylene glycol monobutyl ether 0.39 part, under 500 rev/min rotating speeds, disperse for 30 minutes; Add tackifier (proportion by weight: two Toluene denatured resin NIKANOL L: rosin resin: fatty acid polyoxyethylene methyl ether: soft water = 2:3:3:2, just mix and ball mill evenly) 8 parts, water dispersion of accelerator (proportion by weight: ethylene Thiourea: fatty acid polyoxyethylene methyl ether: soft water = 5:3:2, mix and ball mill evenly) 0.4 parts, 9 parts of hydroxymethyl cellulose, disperse for 30 minutes at 500 rpm; add Defoamer334 0.005 part and penetrating agent JFC 0.005 part, at 300 r/min, disperse for 30 minutes, and the finished product is discharged.

Example 2

According to the proportioning by weight of the formula, 60 parts of neoprene latex CRL41I carboxylated neoprene latex are added in the reactor, and dispersed for 5 minutes at a speed of 300 rpm; : Alkyl polyglucoside: soft water=5:3:2, just mix and ball mill evenly) 5 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportioning by weight: 2,6-di-tert Butyl p-cresol: alkyl polyglucoside: soft water=5: 3: 2, mix and ball mill evenly) 1.2 parts, composite antifreeze (proportioning by weight: sodium salicylate: leveling agent O: propylene glycol =0.6:0.2:8, just mix evenly) 6 parts, 0.59 parts of dipropylene glycol monobutyl ether, at 500 rev/min rotating speed, disperse for 15 minutes; add tackifier (proportion by weight: xylene modified resin NIKANOL LL: rosin resin: alkyl polyglucoside: soft water = 1:4:3:2, just mix and ball mill evenly) 12 parts, accelerator aqueous dispersion (proportion by weight: ethylene thiourea: alkyl polyglycoside: soft water = 5:3:2, just mix and ball mill evenly) 0.2 parts, polyacrylic acid 15 parts, and disperse for 15 minutes at 500 rpm; add 0.005 parts of Defoamer50A and 0.005 parts of penetrant JFC, Disperse for 30 minutes at rpm, and the finished product is discharged.

Example 3

According to the formula weight ratio, 77 parts of neoprene latex CRL40G water-based neoprene latex are added to the reactor, and dispersed for 5 minutes at a speed of 300 rpm; zinc oxide aqueous dispersion is added (proportion by weight: Zinc oxide: N-alkylglucamide: soft water=5:3:2, just mix and ball mill evenly) 7 parts, 2,6-di-tert-butyl p-cresol water dispersion (proportion by weight: 2, 6-di-tert-butyl-p-cresol: N-alkylglucamide: soft water=5:3:2, mixed and ball milled evenly) 1.2 parts, compound antifreeze (proportioning by weight: sodium salicylate: Leveling agent O: propylene glycol = 1: 1: 8, just mix evenly) 6 parts, dipropylene glycol monobutyl ether 0.19 parts, disperse for 25 minutes at a speed of 500 rpm; Ratio: xylene denatured resin NIKANOL L: rosin resin: N-alkylglucamide: soft water = 4:1:3:2, just mix and ball mill evenly) 6 parts, accelerator water dispersion (proportion by weight: N, N-ethylphenyl zinc dithiocarbamate: N-alkylglucamide: soft water = 5:3:2, mix and ball mill evenly) 0.6 parts, casein 2 parts, at 500 rpm disperse for 25 minutes; add 3340.005 parts of organic Defoamer and 0.005 parts of penetrant JFC, and disperse for 30 minutes at 300 rpm, and the finished product is discharged.

Example 4

According to the formula weight ratio, 80 parts of chloroprene latex CRL41I carboxyl type chloroprene latex are added in the reactor, and the stirring is started, and at 300 rpm, the dispersion is carried out for 15 minutes; Ratio: zinc oxide: N-alkylglucamide: soft water = 5: 3: 2, mix and ball mill evenly) 7 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6-di-tert-butyl-p-cresol: N-alkylglucamide: soft water=5:3:2, mix and ball mill evenly) 1.2 parts, compound antifreeze agent (proportion by weight: salicylic acid Sodium: leveling agent O: propylene glycol = 0.7: 0.3: 7, just mix evenly) 3 parts, dipropylene glycol monobutyl ether 0.19 parts, at 500 rev/min rotating speed, disperse for 20 minutes; Add tackifier (by weight Parts ratio: xylene denatured resin NIKANOL LL: rosin resin: fatty acid polyoxyethylene methyl ether: soft water = 2.5: 2.5: 3: 2, just mix and ball mill evenly) 6 parts, accelerator water dispersion (by weight) Ratio: zinc diethyldithiocarbamate: N-alkylglucamide: soft water = 5:3:2, mix and ball mill evenly) 0.6 parts, hydroxymethyl cellulose 2 parts, at 500 rpm disperse for 20 minutes; add 0.005 parts of Defoamer334 and 0.005 parts of penetrant JFC, and disperse for 30 minutes at 300 rpm, and the finished product is discharged.

Example 5

According to the formula weight ratio, 70 parts of neoprene latex CRL50G neoprene latex are added in the reactor, and at 300 rpm, disperse for 10 minutes; add zinc oxide aqueous dispersion (proportion by weight: zinc oxide: Fatty acid polyoxyethylene methyl ether: soft water = 5: 3: 2, just mix and ball mill evenly) 6 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6-di tert-butyl p-cresol: N-alkylglucamide: soft water=5:3:2, mix and ball mill evenly) 1.2 parts, compound antifreeze (proportioning by weight: sodium salicylate: leveling agent O: propylene glycol=1.2:0.5:10, just mix well) 5 parts, dipropylene glycol monobutyl ether 0.39 part, under 500 rev/min rotating speeds, disperse for 20 minutes; Add tackifier (proportion by weight: two Toluene denatured resin NIKANOL L: rosin resin: fatty acid polyoxyethylene methyl ether: soft water = 3:2:3:2, just mix and ball mill evenly) 8 parts, accelerator water dispersion (proportion by weight: ethylene Thiourea: N-alkylglucamide: soft water = 5:3:2, mix and ball mill evenly) 0.4 parts, casein 9 parts, disperse for 20 minutes at 500 rpm; add 0.005 parts of Defoamer50A and infiltrate 0.005 parts of JFC, dispersed for 30 minutes at 300 rpm, and the finished product was discharged.

Comparative Example 6

According to the proportioning by weight, 70 parts of neoprene latex CRL50G neoprene latex are added in the reactor, and at 300 rev/min rotating speeds, disperse for 5 minutes; Add zinc oxide aqueous dispersion (proportioning by weight: zinc oxide: fatty acid Polyoxyethylene methyl ether: soft water = 5: 3: 2, just mix and ball mill evenly) 6 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6-di-tert Butyl-p-cresol: fatty acid polyoxyethylene methyl ether: soft water = 5: 3: 2, mix and ball mill evenly) 1.2 parts, at 500 rpm, disperse for 20 minutes; add rosin resin aqueous dispersion (press Proportion by weight: rosin resin: fatty acid polyoxyethylene methyl ether: soft water=5: 3: 2, mix and ball mill evenly) 13 parts, accelerator water dispersion (proportion by weight: ethylene thiourea: Fatty acid polyoxyethylene methyl ether: soft water = 5: 3: 2, just mix and ball mill evenly) 0.79 parts, 9 parts of hydroxymethyl cellulose, and disperse for 20 minutes at a speed of 500 rpm; add 3340.005 parts of Defoamer and infiltrate Agent JFC 0.005 parts, at 300 rpm, disperse for 30 minutes, and the finished product is discharged.

Comparative Example 7

According to the ratio by weight, 70 parts of neoprene latex CRL40G water-based neoprene latex are added to the reactor, and dispersed for 5 minutes at a speed of 300 rpm; Zinc: alkyl polyglucoside agent: soft water=5:3:2, just mix and ball mill evenly) 6 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6- Di-tert-butyl p-cresol: alkyl polyglucoside: soft water=5: 3: 2, mix and ball mill evenly) 1.2 parts, under 500 rev/min rotating speeds, disperse for 20 minutes; Add rosin resin aqueous dispersion (according to Proportion by weight: rosin resin: alkyl polyglucoside: soft water=5:3:2, just mix and ball mill evenly) 13 parts, accelerator water dispersion (proportion by weight: N, N-ethylphenyl Zinc dithiocarbamate: alkyl polyglucoside: soft water = 5:3:2, mix and ball mill evenly) 0.79 parts, casein 9 parts, disperse for 20 minutes at 500 rpm; add Defoamer50A 0.005 parts and 0.005 parts of penetrant JFC, dispersed for 30 minutes at a speed of 300 rpm, and the finished product was discharged.

Comparative Example 8

According to the proportion by weight, 80 parts of neoprene latex CRL40G water-based neoprene latex are added in the reactor, and dispersed for 5 minutes at a speed of 300 rpm; Zinc: N-alkylglucamide: soft water=5:3:2, just mix and ball mill evenly) 7 parts, 2,6-di-tert-butyl p-cresol aqueous dispersion (proportion by weight: 2,6 -di-tert-butyl-p-cresol: N-alkylglucamide: soft water=5:3:2, mix and ball mill evenly) 1.2 parts, at 500 rpm, disperse for 20 minutes; add rosin resin for water dispersion Liquid (proportioning by weight: rosin resin: N-alkylglucamide: soft water=5:3:2, just mix and ball mill evenly) 8 parts, water dispersion of accelerator (proportioning by weight: diethyl Zinc dithiocarbamate: N-alkylglucamide: soft water = 5:3:2, mix and ball mill evenly) 0.79 parts, 3 parts of hydroxymethyl cellulose, disperse for 20 minutes at 500 rpm ; Add 0.005 parts of Defoamer334 and 0.005 parts of penetrant JFC, and disperse for 30 minutes at a speed of 300 rpm, and the finished product is discharged.

The relevant properties of the neoprene latex adhesives of Examples 1-5 and Comparative Examples 6-8 were tested by the following methods.

1. Freeze-touch stability test method

Put 50 g of the sample in a high-density polyethylene plastic bottle with a height of 70 mm, an inner diameter of 40 mm, and a wall thickness of 2 mm, cover the lid, put it in a low-temperature test box adjusted to the required temperature, and freeze for 10 hours. Take out the frozen sample, put it in a constant temperature water bath at (30±0.5)°C to melt for 1 hour, and stir the sample with a glass rod. If the viscosity of the sample increases to the point of losing fluidity after 1 hour of melting, or cannot be stirred, place it in a constant temperature water bath at (60±0.5)°C and continue to melt for 1 hour.

If the sample changes after being frozen for 16 hours, or the viscosity increases slightly, and can still be stirred with a glass rod, the freeze-thaw stability is considered qualified; if the sample cannot be restored to its original state after being treated at (30±0.5)°C for 1 hour, The freeze-thaw stability is not acceptable. The sample that needs to be tested at (60±0.5)°C may melt without losing the use value of the adhesive; or if it melts but appears slag-like, it loses its use value; or it cannot melt and completely breaks the emulsion. These three situations are considered unqualified.

2. Cold resistance test method

After the plate is made according to the test method of compressive shear strength (dry strength), it is placed in a low temperature environment. After the sample is treated under low temperature conditions, it is taken out of the low temperature test chamber and destroyed within 30 seconds.

Reference standard: HG/T 2727-95 (polyvinyl acetate emulsion wood adhesive), appendix B "compressive shear strength test method (supplement).

The cold-touch stability test results obtained from the neoprene latex adhesives of Examples 1-5 and Comparative Examples 6-8 are shown in Table 1 below.

Table 1

Note: √ in the table is qualified, × is unqualified.

The cold resistance test results of the neoprene latex adhesives of Examples 1-5 and Comparative Examples 6-8 are shown in Table 2 below.

Table 2

As can be seen from the results of Table 1 and Table 2, a kind of chloroprene latex adhesive of the present invention overcomes the problems of prior art (comparative examples 6-8) poor antifreeze, unstable storage at low temperature, and difficulty in normal use at low temperature. The adhesive force is greatly enhanced, and the application range of low temperature is wider.

Main raw material names, technical indicators

1. CRL40G water-based neoprene latex

Total solid content (%): ≥48

Viscosity (mPa·s): ≤23

Supplier: Chongqing Changshou Chemical Co., Ltd.

2.CRL41I carboxylated neoprene latex

Total solid content (%): ≥48

Viscosity (mpa·s): ≤100

Supplier: Chongqing Changshou Chemical Co., Ltd.

3.CRL50G neoprene latex

Solid content (%): ≥50

Viscosity (mpa·s): ≤40

Supplier: Chongqing Changshou Chemical Co., Ltd.

4. Rosin resin

Specifications: Level 1

Appearance: light yellow or yellow brittle solid

Softening point (ring and ball method, ℃): ≥74

Supplier: Guangzhou Huiren Chemical Co., Ltd.

5. Xylene denatured resin NIKANOL L, xylene denatured resin NIKANOL LL

Manufacturer: Mitsui Gas Co., Ltd., Japan

6. Ethylenethiourea

Appearance: white or light yellow crystalline powder

Relative density: 1.41～1.45

Purity (%): ≥98

7. Zinc N, N-ethylphenyldithiocarbamate

Appearance: white or yellow powder

Relative density: 1.50

Purity (%): ≥98

8. Zinc diethyldithiocarbamate

Appearance: white or light yellow powder

Relative density: 1.49

Purity (%): ≥98

9.2,6-di-tert-butyl-p-cresol

Level: Industrial Grade

Content (%): ≥98

Supplier: Nanjing Datang Chemical Co., Ltd.

10. Hydroxymethylcellulose

Level: Industrial Grade

Appearance: white or light yellow fibrous powder or granules

Supplier: Tianjin Kebang Chemical Company

11. Polyacrylic acid

Level: Industrial Grade

Appearance: colorless or light yellow liquid

Supplier: Guoan Chemical Co., Ltd.

12. Casein

Level: Industrial Grade

Appearance: viscous light yellow liquid

Supplier: Guangzhou Haowei Chemical Technology Co., Ltd.

13. N-Alkyl Glucamide

Content (%): ≥50

Supplier: China Research Institute of Daily Chemical Industry

14. Alkyl polyglycosides

Appearance: light yellow liquid or paste

pH value: 7.5～9.5

Supplier: Guangzhou Zhongxu Chemical Co., Ltd.

15. Fatty acid polyoxyethylene methyl ether

Active substance content (%): ≥99

Supplier: Jiangsu Sixin Interface Agent Technology Co., Ltd.

16. Sodium salicylate

Level: Industrial Grade

Appearance: light pink to light brown crystalline powder

Supplier: Huayin Jinqiancheng Pharmaceutical Co., Ltd., Shaanxi Province

17. Leveling agent O

Appearance: white flakes

PH value (1% aqueous solution): 6~8

Stability: Stable in hard water acid-base solution

Supplier: Shaoxing Jinhao Chemical Co., Ltd.

18. Propylene glycol

Level: Industrial Grade

19. Defoamer 334

Appearance: light yellow opaque liquid

Supplier: Shenzhen Haichuan Chemical Technology Co., Ltd.

20. Defoamer50A

Appearance: light yellow liquid

Supplier: Shenzhen Haichuan Chemical Technology Co., Ltd.

21. Dipropylene glycol monobutyl ether

Purity (%): ≥98.5

Supplier: Guangzhou Weber Chemical Co., Ltd.

22. Penetrant JFC

Content (%): ≥99

Supplier: Guangzhou Qipeng Chemical Co., Ltd.

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.