What can be done to ease the time of binding?

1. The dust impurities and maintenance residues on the pasting base surface must be cleaned up before pasting;

2. If there is dust on the back of the vitrified brick, it should be cleaned up, or the interface should be brushed with emulsion (special companion for vitrified brick adhesive) 1 time, dosage: about kilograms per square meter;

3. The foundation surface should be smoothed as much as possible to save the amount of adhesive.

Construction process: stirring.

1. This product is mixed with water in a ratio of 4:1, and it is best to use a stirring wheel to fully stir the mortar, and the consistency is appropriate to not flow down the erected spatula, and other materials are not allowed to be included in the adhesive;

2. The mortar must be hydrated for 5 minutes after full stirring, and then stirred once before use, and the mortar is constantly stirred during use, and the mortar can not be used again after the initial setting in the container, and the general initial setting time is 3 hours;

3. The hydrated mortar can no longer be added with water or binder powder.

Stickup. 1. It is recommended to use a large serrated spatula to paste, which is conducive to firm bonding;

2. When using, smear a thin layer of mortar on the wall, then smear an appropriate amount of mortar and scrape out the grooves with a serrated spatula;

3. If the back of the substrate or vitrified brick is uneven, first embed the uneven place with mortar, and then wipe an appropriate amount of mortar to get out of the groove and paste the groove pattern on the bottom surface;

4. When pasting, it is necessary to press hard and evenly, and for the pasting surface with large errors, the vitrified bricks should be removed to check whether the mortar is evenly distributed, so as to avoid insufficient pasting and hollowing;

5. The adjustment time after pasting is 10-15 minutes, and the adjustment time beyond this time must be scraped off and discarded, and then re-pasted with new mortar;

It is necessary to choose the time configuration according to the different components of honesty and quietness.

Natural binders.

It is taken from substances found in nature. Including starch, protein, dextrin, animal glue, shellac, leather glue, rosin and other biological adhesives; Mineral binders such as bitumen are also included.

Synthetic adhesives.

It mainly refers to synthetic substances, including inorganic adhesives such as sodium silicate, as well as organic adhesives such as synthetic resins and synthetic rubber.

Use characteristic points.

Water-soluble adhesives.

Binders used as solvents with water mainly include starch, dextrin, polyvinyl alcohol, carboxymethyl cellulose, etc.

Hot-melt adhesives.

It is a solid adhesive that is used after melting the adhesive by heating. General thermoplastic resins can be used, such as polyurethane, polystyrene, polyacrylate, ethylene-vinyl acetate copolymer, etc.

Solvent-based adhesives.

A binder that is insoluble in water but in a solvent. Such as shellac, butyl rubber, etc.

Emulsion-type adhesives.

It is mostly suspended in water, such as vinyl acetate resin, acrylic resin, chlorinated rubber, etc.

Solvent-free liquid adhesives.

At room temperature, it is a viscous liquid, such as epoxy resin.

The adhesive is the medium between the label material and the adhesive substrate, which acts as a link. According to its characteristics, it can be divided into two types: permanent and removable. It is available in a variety of formulations for different face materials and different occasions.

Adhesives are the most important ingredient in self-adhesive material technology and are the key to label application technology.

By raw material.

1 ms modified silane.

The end of the modified silane polymer is methoxysilane, which was invented in 1978 by Zhongyuan Group, the company is the world's only supplier of modified silane raw materials, on this basis, Belgium Novan Technology has produced a series of high-quality sealants and adhesives used in construction, industry, automobile transportation, civil and other applications through continuous research and development and innovation.

Curing time refers to the time required for the adhesive to cure in the assembly under certain temperature, pressure and other conditions, and its curing time varies greatly due to different adhesive varieties.

Some can be instantly cured at room temperature, such as: A-cyanoacrylate glue, hot melt glue; Some take a few hours, such as: room temperature fast-setting epoxy adhesive; Some can take up to several days, such as:

Room temperature curing epoxy-polyamide adhesive. The length of curing time is closely related to the curing temperature. Increasing the temperature can shorten the curing time, and when the temperature is lowered, the curing time should be appropriately extended, that is, the curing time and the curing temperature are time-temperature equivalent.

However, if it is lower than the curing temperature of the adhesive, no matter how long it takes, the curing temperature equivalence is a certain premise. Heating and curing to the specified time, the glue joint can not be taken out immediately to quench, so as to avoid the internal stress of the quotient due to uneven integration. It should be slowly cooled to a certain temperature before it can be removed from the heating equipment and cooled to room temperature with the furnace.

Whether it is curing at room temperature or heating curing, it is necessary to maintain sufficient curing time to cure completely and obtain better bonding strength. Curing is the process of obtaining good bonding performance, which is very important in the bonding process, and every effort should be made to make the degree of curing more complete.

To alleviate the binder time, the temperature of the binder can be changed, and generally lowering the temperature can extend the time of the binder.

After each production, the mold is brushed with water, which can be better cleaned, and the briquettes made are smoother and more beautiful. Of course, it would be better if a small amount of oil was added to the water.

Binders, also known as glue or adhesives, are divided into strong type I, porcelain glue adhesive, and super strength type II (heavy brick type, marble, vitrified brick, etc.). It is mainly used for paste, face bricks, floor tiles and other decorative materials, and is widely used in interior and exterior walls, floors, bathrooms, kitchens and other building decoration places. Characteristics of strong I ordinary binder:

No need to dip bricks in the construction, good flexibility, impermeability, crack resistance, aging resistance, high temperature resistance, freeze-thaw resistance, non-toxic and environmental protection, easy construction. Polymer type (adhesive) adhesive features: strong adhesion, good water resistance, good durability, easy operation, high shear performance, can be used as an interface agent adhesive double effect super strength type II binder features:

Heavy brick binder is specially designed to solve the problem that ordinary adhesives can not be pasted outside, and the heavy brick binder can be pasted outside, completely eliminating the problem that ordinary adhesives can not be pasted outside, worry-free and convenient, and there is no need to worry about shoveling off and re-sticking or sticking outside with adhesive and afraid of falling off.

The binder is the guarantee of the bond strength between the abrasive and the substrate. With the development of the chemical industry, various new binders have entered the field of coated abrasives, which has improved the performance of coated abrasives and promoted the development of coated abrasives industry. In addition to rubber compounds, binders also include solvents, curing agents, toughening agents, preservatives, colorants, defoamers and other auxiliary ingredients.

In addition to the most commonly used animal glue, binders include synthetic resins, rubber, and paints. At present, instantaneous binders can be called practical and high-performance binders. The current best-selling instant binder is a substance synthesized from a compound called "cyanoacrylate" that was discovered by researchers in the United States by chance in 1955.

Instantaneous binders do not need to be mixed with more chemicals, as long as the binder is cured with a trace amount of moisture in the air, the objects can be tightly bonded together in an instant. This instantaneous binder is suitable for a wide range of materials (except wood and cloth) and is particularly suitable for domestic use. According to the chemical properties of the material to be bonded, the material to be bonded contains some polar groups, so it is necessary to choose an adhesive that can react with it chemically, so as to improve the strength of the joint.

It is selected according to the physical properties of the material to be bonded, including the surface tension of the material to be bonded, the solubility to the solvent in the adhesive, and the surface properties of the material to be bonded, such as rigidity, elasticity, toughness, etc. According to the special requirements of adhesive joints to choose, because there are a variety of adhesive materials, the use of occasions and conditions are also ever-changing, so it is necessary to choose the appropriate adhesive according to the specific requirements of the adhesive joint, it includes tensile resistance, bending resistance, peel resistance and impact resistance and other mechanical strength and high temperature resistance, water resistance, oil resistance, low temperature resistance and other properties, as well as optical, electromagnetic and other special functions. The curing of adhesives is affected by temperature, pressure, time and air conditions, some adhesives need to be heated and cured, some need to be cured under pressure, and some need to isolate the air, so the adhesive should be selected according to the conditions required for the use occasion.

Types of tile adhesives and construction methods: Ceramic tile adhesives, also known as tile adhesives or tile adhesives, are divided into ordinary type, polymer type, and heavy brick type. It is mainly used for pasting decorative materials such as tiles, face tiles, floor tiles, etc., and is widely used in interior and exterior walls, floors, bathrooms, kitchens and other building finishing decoration places.

Characteristics of ordinary tile adhesive: no need to soak bricks in construction, good flexibility, impermeability, crack resistance, good aging resistance, high temperature resistance, freeze-thaw resistance, non-toxic and environmental protection, easy construction. Polymer tile adhesive features:

Strong adhesion, good water resistance, good durability, easy operation, high shear performance, can be used as an interface agent adhesive double effect.

Characteristics of heavy brick tile adhesive: heavy brick tile adhesive is specially designed to solve the common tile adhesive some tiles can not be pasted and the formula, heavy brick tile adhesive can be pasted on the outside of the tile, completely eliminate the problem that ordinary adhesive can not be pasted outside the tile, worry-free and convenient, do not have to worry about shoveling off the tile re-pasting or sticking outside with adhesive and afraid of falling off the problem. Construction method of tile adhesive:

The base treatment tile adhesive is used for tile pasting on the protective layer of the external thermal insulation system, and the protective layer material needs to be cured to a certain strength. The base surface should be dry, firm, flat, no oil, no dust, no release agent, etc. By Powder:

Water = proportion. Stir evenly to construct it; Within the allowable time of operation, the position of the tile can be adjusted, and the adhesive is completely dry (caulking can be carried out after about 24 hours, and heavy load should be avoided pressing on the tile surface within 24 hours of construction); Reference dosage of tile adhesive: the general construction thickness is about 3mm, and the construction amount is 4-6kg m2.

JETCO's new netless insulation system is directly applied to the base wall, without the need for mesh cloth, rivets, anti-crack mortar, and plastering mortar, and the outside of the insulation layer is directly pasted with tiles or painted.

The gas generation is small, and the binder is required to be heated slowly and the amount is small. For castings such as cast steel and ductile iron, it is also required that the nitrogen content of the binder is low to prevent defects such as subcutaneous porosity and pinholes. The collapsibility is good, and the binder can decompose and collapse by itself under the action of high temperature, so as to prevent internal stress and cracks after the casting solidifies, and make the casting easy to clean sand.

In addition, it is also required that the binder is not easy to absorb moisture or deteriorate, can be used for a long time after sand mixing, does not adhere to the shape and core box, is harmless to the human body, has no pollution to the environment, and is rich and low. Metallurgical pellet binder is a key auxiliary raw material for the production of processed pellets in the iron and steel industry, and its performance is directly related to the quality of roasted denier pellets. The original equipment for the production of cold-set pellets using the binder does not need to be transformed, which can solve the technical problems of high energy consumption, complex process or large-scale conversion and utilization of non-dispersed delay and recovery of existing iron ore powder raw materials and iron-containing dust sludge powder reuse methods.

The binder is not only suitable for the molding and granulation of iron-making ore powder raw materials, titanium dioxide, manganese dioxide and other metals, but also suitable for the molding and granulation of iron and steel enterprise wastes (such as blast furnace dust, rolling steel scale, iron filings, sedimentation, ore return, dust removal bag material trapping, steel slag, sulfuric acid slag, steel slag, steelmaking dust removal ash and other iron-containing powders in Daqi liquor), which can meet the requirements of sintering or blast furnace applications. It has changed the production of iron ore pellets, and the long-term use of bentonite as a binder, reducing the grade, low pellet strength and high pulverization rate. It has strong cohesion, pellet strength, high reduction of pellet roasting temperature, shortening of the rolling material room during roasting, good roasting performance and improvement of pellet grade; Reduced production costs and other features.

Advantages: 1: It can connect the same or different types of materials, such as steel and aluminum, metal and glass, etc.

2: Simplify the machining process, shorten the production cycle, improve the production quality and reduce the cost.

3: The surface is smooth, and the gas power performance is good, which is very important for aircraft, missiles, etc.

4: It can be made into composite structure, honeycomb sandwich structure, etc., with uniform stress distribution, no rivet holes, reducing the weight of the structure and prolonging the life of the structure. Compared with electric welding, it does not undergo high temperature, does not damage the metal structure, and is not easy to produce temperature deformation and internal stress of parts.

5: Good sealing performance, non-conductive adhesive has insulation, thermal insulation and seismic properties. It has good corrosion resistance.

6: The amount of labor required for bonding is small, the technical level of the operator is not high, and the labor intensity is low.

Disadvantages: 1: The peeling force of thermosetting adhesive is relatively low, and thermoplastic adhesive has a tendency to creep when stressed.

2: Some binders have complex bonding processes, and some binders are flammable and toxic.

3: Some binders are gradually aging under the action of high temperature, high humidity, cold, heat, sunlight and chemistry.

4: At present, there is a lack of reliable non-destructive methods for testing the quality of bonding.

5: Some binders contain benzene, formaldehyde and other substances, and the gas emitted after bonding is harmful to the human body. Binders can be divided into two main categories, namely inorganic binders and organic binders.

Inorganic binders are: sulfate, silicate, phosphate and borate.

Organic binders are further divided into two categories: natural binders and synthetic binders.

Natural binders include: animal binders, plant binders, mineral binders, and natural rubber binders.

Synthetic binders are available in resin, rubber, and hybrid types. 1: The nature of the material to be bonded.

2: Consider the case of bonded joints.

3: Temperature including heat resistance. Cold and hot and cold alternating resistance.

4: When used for bonding structural parts, the strength of the bonded joint should be greater than or at least close to the strength of the bonded base metal as much as possible.

5: The performance of high-temperature curing binder is much higher than that of room temperature curing binder, and high-temperature curing binder should be used if high strength and durability are required.

6: Sealant or anaerobic adhesive can be used for sealing or leak-proof; For joints that require transparency, polyvinyl acetal glue, acrylic polyester glue, polyurethane glue, unsaturated polyester glue, etc.