Is there any difference between rigid PVC adhesive low temperature resistant glue and ordinary glue?

PA hot melt web film introduction PA is one of the components of hot melt adhesive web film, PA is the English abbreviation, Chinese name is copolyamide, belongs to a kind of mixed nylon, it has good stability, good adhesion to textiles, leather and other materials, low dissolution index, so the hot melt web film made of PA components has good dry cleaning resistance and shaping effect, but itself has no elasticity, compared with other components of hot melt web film, PA hot melt web film feels slippery to the touch, the color is white and transparentAmong all the use of hot melt adhesive web film, the popular one is the hot melt adhesive web film made of PA material. Of course, in addition to the white hot melt web film with PA composition, there are also PA black hot melt web film, PS hot melt web film, EVA hot melt adhesive web film and TPU hot melt adhesive web film. Different models of PA hot melt web film have different models....

Glue is an intermediate connecting two materials, mostly appearing in aqueous agents, belonging to fine chemicals, with a wide variety, mainly in the form of sticky, physical form, hardening method and classification method of the adherent material. Common ones include instantaneous adhesive (common 502-cyanoethyl acrylate strong instantaneous adhesive is a kind of adhesive), epoxy resin bonding, anaerobic adhesive, UV glue (ultraviolet light curing), hot melt adhesive, pressure-sensitive adhesive, latex, etc.

Under the conditions of use, glues and sealants should be used in a certain environment, and the working conditions have an important impact on the bonding performance. Among the conditions of use, there are force conditions, ambient temperature and humidity, chemical medium conditions, outdoor conditions, and so on.

1) Stress. When the adherent object is subjected to peeling force and uneven tearing force, the toughness glue can be selected, such as rubber glue, polyurethane glue, etc.; When subjected to uniform tearing force and shear force, rubber with high hardness and strength, such as epoxy glue and acrylic glue, can be selected.

2) Temperature. Different glues have different heat resistance. According to different temperatures, different glues are used.

3) Humidity. Moisture and moisture are detrimental to the stability of the bonding interface and can be said to be harmful and unhelpful. Because the water molecules are small in size and polar, they play a hydrolytic role through penetration and diffusion, which destroys or disconnects the adhesive surface, resulting in a decrease in the strength and durability of the adhesive joint.

The adhesive parts require good water resistance, and epoxy glue, polyurethane glue, etc. are selected.

4) Chemical medium. Chemical medium mainly refers to acid, alkali, salt, solvent, etc., different types of glue, different curing conditions, with different media resistance. Therefore, glue and sealant should be selected according to the medium that the sticky object is in contact with.

5) Outdoor conditions. The conditions of the adhesive joints used outdoors are more complex, such as temperature changes, wind and rain, sun and freezing, etc., which will accelerate the aging of the adhesive layer and shorten the life. Therefore, under outdoor conditions, glue joints should be glued with high temperature curing and good atmospheric aging resistance, such as phenolic acetal glue and epoxy nitrile glue; Silicone sealant is used for sealing.

QIS-3003 special plastic glue for hard plastics, quick-drying type, firm gluing;

According to the requirements, you can choose to use QIS-5011 two-component fully transparent super glue;

According to the requirements, you can choose to use QIS-5705 elastic sealing adhesive, slow drying type, high and low temperature resistance;

If the product area is large, you can choose to use QIS-3033 fully transparent plastic adhesive, which has higher firmness of double-sided gluing.

Adhesive hard plastic depends on what kind of material the size of the bonding area Whether the plane is tightly bonded Whether there are special requirements for the use environment to decide what glue to use.

Look at what material is glued.

Different materials, the glue used is also different.

Summary. What are the glues that are both resistant to high temperatures and hard?

What are the glues that are both resistant to high temperatures and hard? Dear, send it to you in ** way.

Dear, or you can say which convenient glue to use, I can inquire for you.

This is a relative number and is difficult to define.

According to our nearly 30 years of experience in producing PVC pellets, we generally divide high temperature resistance and low temperature resistance into two aspects. Because it's a contradictory data.

In the field of PVC products, regardless of high temperature or low temperature, we generally refer to the use temperature, so excluding and not considering the change of the original hardness of the product, in the static case, PVC can withstand minus 90 degrees is no problem. Soft PVC high temperature resistance 110 degrees no problem.

However, considering the dynamic factors, PVC can generally only withstand minus 35 and minus 105.

The lower the temperature, the harder the PVC will become as the temperature decreases. The higher the temperature, the softer the PVC will become as the temperature increases. When the extreme high temperature of physical properties is exceeded, it begins to melt, age, overplastic, and coke.