阅读说明：本技术 空变丝鞋面布粘合物及应用 (Air textured yarn vamp fabric adhesive and application ) 是由 陈松雄 晋齐怀 张世林 王春桥 田杰 毛昌虎 廖浦江 于 2021-09-02 设计创作，主要内容包括：本发明公开了一种空变丝鞋面布粘合物及其制作方法与应用,该粘合体物的组成包括鞋帮布面粘合层及围条粘合面增粘层；鞋帮表面粘合层的组成包括固化剂LG-8、羧甲基纤维素钠水溶胀及粘合剂WR606；鞋用橡胶围条粘合面增粘层的组成包括由SCR5天然橡胶为原料之一制备的高粘性汽油胶浆。将围条橡胶粘合表面刷SCR5天然橡胶制作的高粘性汽油胶浆并且干燥,将刷浆干燥的围条粘合在刷浆鞋帮表面、压合,然后于115℃X40minX0.38MPa条件下热空气硫化45分钟得胶鞋成品。本工艺所得胶鞋的围条橡胶与空变丝鞋面布的粘合强度可以达到4.0KN/m以上,大幅度提高了胶鞋穿用寿命。(The invention discloses a space variant yarn vamp fabric adhesive and a manufacturing method and application thereof, wherein the adhesive comprises an upper fabric surface bonding layer and a surrounding strip bonding surface adhesion increasing layer; the composition of the upper surface bonding layer comprises a curing agent LG-8, sodium carboxymethyl cellulose water swelling and adhesive WR 606; the adhesion promotion layer of the rubber surrounding strip for shoes comprises high-viscosity gasoline mucilage prepared by taking SCR5 natural rubber as one of raw materials. Brushing high-viscosity gasoline mucilage made of SCR5 natural rubber on the rubber bonding surface of the foxing, drying, bonding the foxing after brushing and drying on the surface of the upper with brushing, pressing, and vulcanizing in hot air at 115 ℃ X40minX0.38MPa for 45 minutes to obtain the finished rubber shoe. The bonding strength of the foxing rubber and the air-jet textured yarn vamp cloth of the rubber shoe obtained by the process can reach more than 4.0KN/m, and the service life of the rubber shoe is greatly prolonged.)

1. The air textured yarn vamp fabric adhesive is characterized in that: the composition of the bonding object comprises an upper cloth cover bonding layer and a surrounding strip bonding surface tackifying layer; the composition of the upper surface bonding layer comprises a curing agent LG-8, sodium carboxymethyl cellulose water swelling and adhesive WR 606; the adhesion promotion layer of the rubber surrounding strip for shoes comprises high-viscosity gasoline mucilage prepared by taking SCR5 natural rubber as one of raw materials.

2. The air textured yarn vamp fabric adhesive of claim 1, wherein: the addition amount of the LG-8 curing agent is 4-7% of the total mass of the WR606 adhesive; the carboxymethyl cellulose sodium water swelling is a carboxymethyl cellulose sodium water swelling body with the mass percentage concentration of 5%, and the dosage of the swelling body is 4-7% of the total mass of the WR606 adhesive.

3. The air textured yarn vamp adhesive of claim 1, wherein: the high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises, by weight, 100 parts of SCR5 natural rubber, 1.8-2.2 parts of sulfur, 2.6-4.0 parts of vulcanization accelerator, 8-9 parts of zinc oxide, 1-2 parts of stearic acid, 1.6-2.8 parts of white carbon black, 2.2-2.8 parts of polyethylene glycol 4000, 4.0-5.0 parts of tackifying resin, 1.0-1.4 parts of anti-aging agent KY-405L and 500 parts of 120# gasoline 480-.

4. The air textured yarn vamp fabric adhesive of claim 3, wherein: the high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises the following raw materials in parts by weight: 100 parts of SCR5 natural rubber, 2.0 parts of sulfur, 3.8 parts of vulcanization accelerator, 8.5 parts of zinc oxide, 1.5 parts of stearic acid, 2.2 parts of white carbon black, 2.5 parts of polyethylene glycol 4000#, 4.5 parts of tackifying resin, 1.2 parts of anti-aging agent KY-405L and 490 parts of 120# gasoline.

5. The air textured yarn vamp fabric adhesive of claim 3 or 4, wherein: every 3.8 parts of vulcanization accelerator consists of 0.7 part of accelerator M, 1.3 parts of accelerator DM and 1.8 parts of accelerator DS; the tackifying resin is a flavorless tackifying resin DT-100.

6. The air textured yarn vamp fabric adhesive of claim 1 or 3, wherein: the preparation method of the high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises the following steps of:

(1) preparing a gasoline rubber cement compound: the SCR5 natural rubber is pressed and refined in an internal mixer at the rubber refining temperature of 80-90 ℃ for 8-12 minutes, the materials are discharged to an open type rubber refining machine to be coated and rolled smoothly, then the sheets are beaten and placed for 1-2 hours, then the open type rubber refining machine is used for drawing 5 times through the machine under the conditions that the roller spacing is 0.1-0.2mm and the temperature is 35-45, the sheets are coated and rolled smoothly on an open type rubber refining machine at the roller spacing of 4-5mm, and then the SCR5 natural rubber plasticated rubber is obtained; the Wei's plasticity of the SCR5 natural rubber plasticated rubber is 0.65-0.70;

(2) preparing materials: mixing a vulcanization accelerator, a vulcanization activator, polyethylene glycol 4000#, and an anti-aging agent KY-405L to obtain a product A, and mixing tackifying resin and white carbon black to obtain a product B;

(3) preparing a rubber compound: coating SCR5 natural rubber plasticated rubber on an open rubber mixing mill at the roller spacing of 4-5mm and the roller temperature of 40-50 ℃, adding a material B, turning until a rubber sheet is smooth, adding a material A into the rubber mixing mill, continuously refining, turning for 7-8 times by a left and right open knife after powder is completely eaten, allowing all the powder to enter a colloid, and taking out the rubber sheet from the rubber mixing mill at the roller spacing of 5-6mm for cooling to obtain high-viscosity rubber layer rubber compound;

(4) and (3) verifying the qualification of the rubber compound: taking 52 g of the mixed rubber according to the proportion, adding 1 g of sulfur, uniformly mixing, and detecting that the starting point of rubber vulcanization is 1 '40' -2 '10' under the conditions of 143 ℃ and 20MPa, wherein the index of the starting point of the mixed rubber vulcanization is qualified;

(5) preparing rubber cement paste:

(a) slicing: cutting the rubber compound into small rubber sheets with the length of 8-12cm and the width of 5-6 cm;

(b) sulfur soaking treatment: soaking sulfur into 5 parts of No. 120 gasoline, stirring uniformly and storing for later use;

(c) stirring the mucilage: adding the small pieces of mixed rubber sheets and 150 parts of No. 120 gasoline into a rubber slurry stirrer, and stirring the rubber sheets until the mixed rubber is dispersed in the gasoline to form uniform rubber slurry; reserving 40-55 parts of 120# gasoline for later use, uniformly adding the rest 120# gasoline into the rubber body for three times, stirring the gasoline into the eaten rubber body each time, and continuously adding the gasoline until all the added gasoline is dissolved in the rubber body to form uniform rubber body; the stirring time is about 4.5-5 hours.

(d) Adding sulfur: opening a mucilage mixer to cool water, cooling for half an hour, starting the mucilage mixer when the temperature of the mucilage is reduced to be below 80 ℃, adding soaked sulfur and 120# gasoline into the mixer, cleaning sulfur powder by using 40-55 parts of 120# gasoline, feeding the sulfur powder into the mixer, continuously mixing for half an hour, detecting the concentration of the mucilage by using a glass-imitated hydrometer with the weight of 108 grams and the measuring stroke of 100mm, taking the unit second of time for measuring the stroke when the hydrometer freely sinks into the mucilage as the concentration of the mucilage, and discharging the mucilage into a mucilage barrel from the mixer to obtain the rubber paste A;

(e) and (3) mucilage inspection and application: taking 1-2 g of rubber cement, coating on a stainless steel sheet with the thickness of 1.5mm, placing in a hot air drying oven with the temperature of 143 ℃ for baking for 35 minutes, checking the vulcanization degree and the color of vulcanized rubber, and if the rubber cement is vulcanized normally and the color meets the requirements, obtaining a qualification certificate and using the qualification certificate in the molding and assembling process of the hot vulcanized rubber shoes.

7. The air textured yarn vamp fabric adhesive of claim 2, wherein: the preparation method of the sodium carboxymethylcellulose water-soluble dilatant comprises the steps of adding 95 parts of hot distilled water at the temperature of 80-90 ℃ in a powdery state, adding 5 parts of sodium carboxymethylcellulose under stirring, and stirring to obtain a transparent viscous body to obtain the sodium carboxymethylcellulose water-soluble dilatant.

8. Use of the air textured yarn vamp adhesive of claim 1, comprising the steps of:

(1) the upper surface brushing slurry process comprises the following steps: coating an upper cloth cover bonding layer on the film bonding part of the upper surface of the heat vulcanized rubber shoe, and then drying for 32-36 minutes under the condition of a heat circulation air drying box with the drying temperature of 45-50 ℃ to obtain a dried slurry brushing upper semi-finished product;

(2) tackification treatment of rubber binding surfaces of rubber shoe surrounding strips: brushing a surrounding strip adhesive surface tackifying layer with the thickness of 0.1-0.2mm on the adhesive surface of the surrounding strip of the heat-vulcanized rubber shoe, and drying for 25-30 minutes at room temperature to meet the adhesive requirement to obtain the slurry brushing surrounding strip;

(3) bonding: bonding the bonding surface of the brushing paste surrounding strip on the bonding surface of the dried brushing paste upper semi-finished product, and pressing for 1-1.5 seconds under the pressure of 0.38MPa to obtain a semi-finished rubber shoe;

(4) vulcanizing the rubber shoes: and putting the semi-finished rubber shoes into a rubber shoe vulcanizing tank with the temperature of 115 ℃ and the hot air pressure of 0.38MPa, and carrying out heat preservation, pressure maintaining and vulcanization for 45 minutes to obtain the finished rubber shoes.

9. Use according to claim 8, characterized in that: the bonding part of the upper surface must be completely covered with the upper cloth surface bonding layer, and the surface of the foxing which is bonded with the upper cloth surface bonding layer must be covered with the foxing bonding surface adhesion layer.

Technical Field

The invention relates to the technical field of adhesive application, in particular to a space variant yarn vamp fabric adhesive and application thereof.

Background

The hot vulcanized rubber upper surface adhesive mainly adopts two systems, one is a solvent type rubber cement system, and the other is a water-based rubber cement system. For the air textured yarn vamp cloth used for the hot vulcanization rubber shoes, the rubber slurry excessively permeates the cloth fibers due to the thick texture, so that the rubber slurry forms a winding attachment layer on the surfaces of the cloth fibers too thin, and therefore effective adhesion cannot be formed, and the development field of rubber shoe products is limited.

When the two systems are used, the color of the natural color rubber paste is yellow and discolored due to the vulcanization temperature of the rubber shoes, the coloring treatment is carried out according to different upper surfaces, the physical winding adsorption of the rubber paste and the upper fabric is poor, the bonding strength of the upper surface and the surrounding strip of the rubber shoes formed by the bonding scheme is 0.6-1.5KN/m, and the use requirement cannot be met.

Along with the acceleration of the social development process, the demand of good consumers is improved, and consumers have improved the requirements on the grade, the appearance quality and the bonding performance of rubber shoes. The water-based adhesive for the heat-vulcanized rubber shoes suitable for bonding the air-textured vamp cloth and the shoe making process thereof are urgently needed. So as to comprehensively improve the quality level of rubber shoe products.

Disclosure of Invention

The invention aims to solve the technical problems, solve the process defects of the existing rubber shoe using a solvent type bonding system and a latex bonding system, and provide a bonding material of the air textured yarn vamp fabric, a manufacturing method and an application process thereof, so as to improve the bonding effect of the bonding material, expand the wide adaptability of the bonding material to the specification and the hue of the air textured yarn canvas upper material, reduce the production cost, eliminate the hidden danger of the glue opening quality in the wearing process of the rubber shoe, improve the grade of the rubber shoe and meet the market demand of the air permeability subdivision of the rubber shoe.

In order to solve the technical problems, the invention adopts the following technical scheme:

the air-jet texturing yarn vamp fabric adhesive comprises an upper fabric adhesive layer and a surrounding strip adhesive surface tackifying layer; the composition of the upper surface bonding layer comprises a curing agent LG-8, sodium carboxymethyl cellulose water swelling and adhesive WR 606; the adhesion promotion layer of the rubber surrounding strip for shoes comprises high-viscosity gasoline mucilage prepared by taking SCR5 natural rubber as one of raw materials.

The addition amount of the LG-8 curing agent is 4-7% of the total mass of the WR606 adhesive; the carboxymethyl cellulose sodium water swelling is a carboxymethyl cellulose sodium water swelling body with the mass percentage concentration of 5%, and the dosage of the swelling body is 4-7% of the total mass of the WR606 adhesive.

The high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises, by weight, 100 parts of SCR5 natural rubber, 1.8-2.2 parts of sulfur, 2.6-4.0 parts of vulcanization accelerator, 8-9 parts of zinc oxide, 1-2 parts of stearic acid, 1.6-2.8 parts of white carbon black, 2.2-2.8 parts of polyethylene glycol 4000, 4.0-5.0 parts of tackifying resin, 1.0-1.4 parts of anti-aging agent KY-405L and 500 parts of 120# gasoline 480-.

The high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises the following raw materials in parts by weight: 100 parts of SCR5 natural rubber, 2.0 parts of sulfur, 3.8 parts of vulcanization accelerator, 8.5 parts of zinc oxide, 1.5 parts of stearic acid, 2.2 parts of white carbon black, 2.5 parts of polyethylene glycol 4000#, 4.5 parts of tackifying resin, 1.2 parts of anti-aging agent KY-405L and 490 parts of 120# gasoline.

Every 3.8 parts of vulcanization accelerator consists of 0.7 part of accelerator M, 1.3 parts of accelerator DM and 1.8 parts of accelerator DS; the tackifying resin is a flavorless tackifying resin DT-100.

The preparation method of the high-viscosity gasoline mucilage prepared from the SCR5 natural rubber comprises the following steps of:

preparing a gasoline rubber cement compound: the SCR5 natural rubber is pressed and refined in an internal mixer at the rubber refining temperature of 80-90 ℃ for 8-12 minutes, the materials are discharged to an open type rubber refining machine to be coated and rolled smoothly, then the sheets are beaten and placed for 1-2 hours, then the open type rubber refining machine is used for drawing 5 times through the machine under the conditions that the roller spacing is 0.1-0.2mm and the temperature is 35-45, the sheets are coated and rolled smoothly on an open type rubber refining machine at the roller spacing of 4-5mm, and then the SCR5 natural rubber plasticated rubber is obtained; the Wei's plasticity of the SCR5 natural rubber plasticated rubber is 0.65-0.70;

(2) preparing materials: mixing a vulcanization accelerator, a vulcanization activator, polyethylene glycol 4000#, and an anti-aging agent KY-405L to obtain a product A, and mixing tackifying resin and white carbon black to obtain a product B;

(3) preparing a rubber compound: coating SCR5 natural rubber plasticated rubber on an open rubber mixing mill at the roller spacing of 4-5mm and the roller temperature of 40-50 ℃, adding a material B, turning until a rubber sheet is smooth, adding a material A into the rubber mixing mill, continuously refining, turning for 7-8 times by a left and right open knife after powder is completely eaten, allowing all the powder to enter a colloid, and taking out the rubber sheet from the rubber mixing mill at the roller spacing of 5-6mm for cooling to obtain high-viscosity rubber layer rubber compound;

(4) and (3) verifying the qualification of the rubber compound: taking 52 g of the mixed rubber according to the proportion, adding 1 g of sulfur, uniformly mixing, and detecting that the starting point of rubber vulcanization is 1 '40' -2 '10' under the conditions of 143 ℃ and 20MPa, wherein the index of the starting point of the mixed rubber vulcanization is qualified;

(5) preparing rubber cement paste:

(a) slicing: cutting the rubber compound into small rubber sheets with the length of 8-12cm and the width of 5-6 cm;

(b) sulfur soaking treatment: soaking sulfur into 5 parts of No. 120 gasoline, stirring uniformly and storing for later use;

(c) stirring the mucilage: adding the small pieces of mixed rubber sheets and 150 parts of No. 120 gasoline into a rubber slurry stirrer, and stirring the rubber sheets until the mixed rubber is dispersed in the gasoline to form uniform rubber slurry; reserving 40-55 parts of 120# gasoline for later use, uniformly adding the rest 120# gasoline into the rubber body for three times, stirring the gasoline into the eaten rubber body each time, and continuously adding the gasoline until all the added gasoline is dissolved in the rubber body to form uniform rubber body; the stirring time is about 4.5-5 hours.

(d) Adding sulfur: opening a mucilage mixer to cool water, cooling for half an hour, starting the mucilage mixer when the temperature of the mucilage is reduced to be below 80 ℃, adding soaked sulfur and 120# gasoline into the mixer, cleaning sulfur powder by using 40-55 parts of 120# gasoline, feeding the sulfur powder into the mixer, continuously mixing for half an hour, detecting the concentration of the mucilage by using a glass-imitated hydrometer with the weight of 108 grams and the measuring stroke of 100mm, taking the unit second of time for measuring the stroke when the hydrometer freely sinks into the mucilage as the concentration of the mucilage, and discharging the mucilage into a mucilage barrel from the mixer to obtain the rubber paste A;

(e) and (3) mucilage inspection and application: taking 1-2 g of rubber cement, coating on a stainless steel sheet with the thickness of 1.5mm, placing in a hot air drying oven with the temperature of 143 ℃ for baking for 35 minutes, checking the vulcanization degree and the color of vulcanized rubber, and if the rubber cement is vulcanized normally and the color meets the requirements, obtaining a qualification certificate and using the qualification certificate in the molding and assembling process of the hot vulcanized rubber shoes.

The preparation method of the sodium carboxymethylcellulose water-soluble dilatant comprises the steps of adding 95 parts of hot distilled water at the temperature of 80-90 ℃ in a powdery state, adding 5 parts of sodium carboxymethylcellulose under stirring, and stirring to obtain a transparent viscous body to obtain the sodium carboxymethylcellulose water-soluble dilatant.

The application of the air textured yarn vamp fabric adhesive is characterized by comprising the following steps:

(1) the upper surface brushing slurry process comprises the following steps: coating an upper cloth cover bonding layer on the film bonding part of the upper surface of the heat vulcanized rubber shoe, and then drying for 32-36 minutes under the condition of a heat circulation air drying box with the drying temperature of 45-50 ℃ to obtain a dried slurry brushing upper semi-finished product;

(2) tackification treatment of rubber binding surfaces of rubber shoe surrounding strips: brushing a surrounding strip adhesive surface tackifying layer with the thickness of 0.1-0.2mm on the adhesive surface of the surrounding strip of the heat-vulcanized rubber shoe, and drying for 25-30 minutes at room temperature to meet the adhesive requirement to obtain the slurry brushing surrounding strip;

(3) bonding: bonding the bonding surface of the brushing paste surrounding strip on the bonding surface of the dried brushing paste upper semi-finished product, and pressing for 1-1.5 seconds under the pressure of 0.38MPa to obtain a semi-finished rubber shoe;

(4) vulcanizing the rubber shoes: and putting the semi-finished rubber shoes into a rubber shoe vulcanizing tank with the temperature of 115 ℃ and the hot air pressure of 0.38MPa, and carrying out heat preservation, pressure maintaining and vulcanization for 45 minutes to obtain the finished rubber shoes.

The bonding part of the upper surface must be completely covered with the upper cloth surface bonding layer, and the surface of the foxing which is bonded with the upper cloth surface bonding layer must be covered with the foxing bonding surface adhesion layer.

Measurement of adhesive Property of the finished rubber overshoes: the finished rubber shoe product is placed at room temperature for 12 hours, and the bonding strength of the surrounding strip and the upper is measured according to the GB/T532- & ltSUB & gt 2008 & gt regulations.

The bonding strength of the foxing and the upper of the rubber shoe manufactured by the process can reach more than 4.0 KN/m.

To verify the effect of the present invention, the following experiment was performed:

(1) optimum formula research of high-viscosity rubber paste for binding surface of foxing

TABLE 1

TABLE 2

The optimum formula obtained by tests in tables 1 and 2 comprises 100 parts of SCR5 natural rubber, 2.0 parts of sulfur, 0.7 part of accelerator M, 1.3 parts of accelerator DM, 1.8 parts of accelerator DS, 8.5 parts of zinc oxide, 1.50 parts of stearic acid, 1.2 parts of anti-aging agent KY-405L, 2.2 parts of white carbon black, 2.5 parts of polyethylene glycol 4000#, 2.32 parts of odorless tackifying resin DT-1004.5 parts and 490 parts of 120# gasoline.

(2) Effect of swelling glue on adhesion

TABLE 3 Effect of swelling glue ratio on the adhesive effect of the cements

As shown in Table 3, the cement formed by using 15 parts of SCR5 natural rubber as the swelling glue has the best adhesion effect.

(3) Research on manufacturing process of high-viscosity rubber paste

Influence of plasticity of A plasticated rubber on performance of rubber cement

TABLE 4

Plasticity of plasticated rubber	<0.65	0.65-0.70	0.71 or more
				Workability in kneading	Difficulty in	Is normal	Easy
Production of mucilage	The cement paste has long stirring time	The stirring time of the mucilage is normal	Is normal
				Difficulty of brushing slurry	Difficulty in	Is normal	Is normal
BondingCharacteristics of	Not good	Is very good	Is very good

The results in Table 4 show that SCR5 rubber can control the plasticity of rubber to 0.65-0.70, so that the rubber cement has optimal production process and adhesion effect.

Influence of vulcanization origin of B rubber compound on adhesion effect

TABLE 5

C mucilage preparation process research

C1 swelling glue process research

TABLE 6 time for swelling glue and stirring effect during brewing

As can be seen from Table 6, the brewing time of the raw gums ranged from 11 to 12 hours, and the raw gums were stirred at least every 1.5 hours during the brewing process, which was the most efficient for making the gums.

The influence of the specification of the mixed rubber block on the rubber cement stirring process during the stirring of the C2 rubber cement

TABLE 7

The table 7 shows that the rubber cement stirring rubber sheet is controlled to be 5-6mm thick (rubber mixing sheet), 8-12mm long and 5-6mm wide, the rubber cement is easy to stir, and the rubber cement manufacturing efficiency is high.

Preparation procedure study of C3 mucilage

TABLE 8

Table 8 shows that the procedure for making rubber cement of option 1 is the most time efficient and efficient. Influence of C4 mucilage concentration on foxing and bonding process

TABLE 9

Degree of cement (second)	<1.5	1.5-2	2-3
				Process performance of brushing slurry	Easy brushing pulp	Easy brushing pulp	Difficult brushing
Adhesive effect	Difference (D)	Good effect	Difference (D)

Table 9 shows that the concentration of the prepared high-viscosity rubber paste is 1.5-2 seconds, the brushing operation and the bonding effect on the surface of the foxing are at the best level.

(2) Study on shoe upper brushing process

Influence of addition parts of LG-8 and sodium carboxymethylcellulose water-soluble dilatants on bonding effect

Watch 10

Table 10 shows that when 5 parts of curing agent LG-8 and 5 parts of sodium carboxymethylcellulose are added to 100 parts of adhesive WR606, the adhesion effect is the best.

Effect of drying conditions after B brushing on adhesive Properties

TABLE 11

As can be seen from Table 11, the surface of the upper of the textured yarn vamp fabric was coated with WR606 containing 5% LG-8 and 5% carboxymethylcellulose sodium hydroswelling, and the WR606 was dried at 40-50 ℃ for 35 minutes to obtain the best adhesion effect.

(4) Research on bonding foxing strip pressing process

TABLE 12 bonding pressure and time of foxing bond influence on bonding effect

Table 12 shows that the pressing pressure of the bonding of the foxing strips is 0.38MPa, and the pressing time is 1.5-2 seconds, so that the pressing effect and the bonding effect can be ensured.

(5) Study of vulcanization Process conditions

TABLE 13 Effect of vulcanizer process conditions on bond Strength

As shown in Table 13, the optimum vulcanization conditions were 115 ℃ in the vulcanizing tank, 0.38MPa in vulcanization pressure and 45 minutes in vulcanization time.

Due to the adoption of the technical scheme, compared with the prior art, the hot vulcanization bonding process disclosed by the invention has the advantages that the bonding performance of the rubber shoe surrounding strip and an upper material can be greatly improved. The adhesive strength of the invention is good, so the wearing life of the rubber shoes is prolonged. The method is simple and easy to industrialize.

Detailed Description

Example 1 of the invention: air textured yarn vamp fabric adhesive and application

1. The formula of the sizing material is as follows: 100 parts of SCR5 natural rubber, 2.0 parts of sulfur, 3.8 parts of vulcanization accelerator, 8.5 parts of zinc oxide, 1.5 parts of stearic acid, 2.2 parts of white carbon black, 2.5 parts of polyethylene glycol 4000#, 4.5 parts of tackifying resin, 1.2 parts of anti-aging agent KY-405L and 490 parts of 120# gasoline.

2. The process comprises the following steps:

firstly, preparing high-viscosity rubber paste for the binding surface of the surrounding strip:

preparing a gasoline rubber cement compound: 100 parts of SCR5 natural rubber is taken, the mixture is milled for 8 to 12 minutes in an internal mixer at the rubber mixing temperature of 80 to 90 ℃, discharged to an open rubber mixer to be rolled and smoothed, then the mixture is flaked for 1 to 2 hours, then the mixture is pulled through the open rubber mixer for 5 times under the conditions that the roller spacing is 0.1 to 0.2mm and the temperature is 35 to 45 ℃, and then the mixture is rolled and smoothed on an open mill at the roller spacing of 4 to 5mm to obtain the SCR5 natural rubber plasticated rubber. The Weibull plasticity of the SCR5 natural rubber plasticator is 0.65-0.70.

(2) Preparing materials: mixing a vulcanization accelerator, a vulcanization activator, polyethylene glycol 4000#, and an anti-aging agent KY-405L to obtain a product A, and mixing tackifying resin and white carbon black to obtain a product B;

(3) preparing a rubber compound: coating SCR5 natural rubber plasticated rubber on an open rubber mixing mill at the roller spacing of 4-5mm and the roller temperature of 40-50 ℃, adding a material B, turning until a rubber sheet is smooth, adding a material A into the rubber mixing mill, continuously refining, turning for 7-8 times by a left and right open knife after powder is completely eaten, allowing all the powder to enter a colloid, and taking out the rubber sheet from the open rubber mixing mill at the roller spacing of 5-6mm for cooling to obtain the high-viscosity rubber layer rubber compound.

(4) And (3) verifying the qualification of the rubber compound: taking 52 g of the mixed rubber according to the proportion, adding 1 g of sulfur, uniformly mixing, and detecting that the starting point of rubber material vulcanization is 1 '40' -2 '10' under the conditions of 143 ℃ and 20MPa, wherein the index of the starting point of the mixed rubber vulcanization is qualified. Can be used for the mucilage stirring process.

(5) Preparing rubber cement paste:

(a) slicing: cutting the mixed rubber into small pieces of rubber sheets with the length of 8-12cm and the width of 5-6 cm.

(b) Sulfur soaking treatment: 2.0 parts of sulfur is immersed into 5 parts of 120# gasoline to be evenly stirred and stored for standby application.

(c) Stirring the mucilage: 86 parts of mixed rubber pieces cut into small pieces and 150 parts of No. 120 gasoline are added into a rubber cement stirrer, and the rubber pieces are stirred until the mixed rubber is dispersed in the gasoline to form uniform rubber cement body. And adding 80 parts of gasoline into the mixture three times, stirring the gasoline into the edible colloid each time, and then continuously adding the gasoline. Until all the added gasoline dissolved into the rubber body to form a homogeneous slurry. (the total gasoline amount in this step is 440 parts) the stirring time is about 4.5 to 5 hours.

(d) Adding sulfur: and (3) opening the mucilage stirrer to cool water, cooling for half an hour, starting the mucilage stirrer when the temperature of the mucilage is reduced to be below 80 ℃, adding the soaked sulfur (containing 7 parts of gasoline in total) into the stirrer, and then cleaning the sulfur powder by using 45 parts of oil to enter the stirrer. And (3) continuing stirring for half an hour, detecting by using a Bowman-simulated densitometer (measuring stroke is 100mm) with the weight of 108 g to obtain that the cement concentration is 1-1.5 seconds (the unit second of time used for measuring the stroke when the densitometer freely sinks into the cement is taken as the cement concentration), and discharging the cement into a cement barrel from the stirrer to obtain the cement A.

(e) And (3) mucilage inspection and application: taking 1-2 g of rubber paste A, coating the rubber paste on a stainless steel sheet with the thickness of 1.5mm, placing the stainless steel sheet in a hot air drying oven with the temperature of 143 ℃ for baking for 35 minutes, and checking the vulcanization degree and the color of vulcanized rubber. If the rubber slurry is normally vulcanized and the color meets the requirement, a qualification certificate is obtained and is used for the molding and assembling procedure of the heat vulcanized rubber shoes.

Then brushing the adhesive surface of the shoe surrounding strip with the obtained high-viscosity rubber paste, and drying for 10-20 minutes at room temperature for later use.

And simultaneously, coating a WR606 adhesive containing 5 percent of curing agent lg-8 and 5 percent of sodium carboxymethylcellulose water swellable body on the adhesive piece bonding part of the hot vulcanized rubber upper surface, and drying for 32-36 minutes under the condition of hot circulating air at the drying temperature of 45-50 ℃ to obtain a dried half-finished product of the brushed sizing upper.

Then the bonding surface of the brushing welt is attached to the surface of WR606 adhesive on the upper, and is pressed for 1.5 to 2 seconds under the pressure of 0.35 to 0.38MPa, thus obtaining the semi-finished product of the rubber shoe with the welt bonded. And then putting the semi-finished rubber shoe into a rubber shoe vulcanizing tank with the temperature of 115 ℃ and the pressure of 0.38MPa for heat preservation and pressure maintaining vulcanization for 45 minutes to obtain the finished rubber shoe. The adhesive strength can be measured after the rubber shoe finished product is cooled for more than 12 hours at room temperature.

The invention relates to a space variant silk vamp fabric adhesive, a manufacturing method and an application example 2 thereof

1, sizing material formula: 100 parts of SCR5 natural rubber, 2.3 parts of sulfur, 2.8 parts of vulcanization accelerator, 6.3 parts of vulcanization activator, 2.2 parts of white carbon black, 2.5 parts of polyethylene glycol 4000#, 4.6 parts of tackifying resin, 1.2 parts of anti-aging agent KY-405L and 495 parts of 120# gasoline.

Preparation and use examples 1.