Pigment dyeing crosslinking agent

Pigment dyeing crosslinking agent. The coating, adhesives, crosslinking agent, etc.

If you do not use glue, you must add special crosslinking agents (such as crosslinker SE or Acrafix FH). Meanwhile, due to the improper use of the adhesive, the adhesion roller and other phenomena are easily produced.

Use crosslinking agent SE in pad internal react quickly when baking, together form a film, at the same time with micro fiber bonding coating glue fixation on fiber, as part of the fastness.

For example: a factory producing 48.6 Tex 36.4 x 50.39 x 36.4 Tex Tex (12 * 1662 * 1662 ") entries in corduroy, green gray, its technological process: the practice of drift grey - room temperature two dip two rolling working liquid coating (or with uniform rolling cars, or second dip a rolling) - > drying (three or four column drying drum drying, column or add infrared drying).

Coating work liquid prescription: coating blue 8301, 3.5 g/L, plain plus O2g/L, crosslinking agent SE15g/L, antiphoresis, 25g/L. The above technique dyeing fastness is: soap wash 3 class, touch color 4 level, dry mo 2-3 class, wet mo 1-2 class.

In the development of water-based polyurethane adhesives. By changing the dial base content (COOH %), different atmosphere vinegar base (CO) -n and the molar ratio of boat base (H) - O (R value), the dosage of crosslinking agent, looked at them to get together ammoniac vinegar emulsion viscosity and water resistance of film and compound thin film T peel strength, the influence of synthetic al type on a stated composite film adhesive with waterborne poly atmosphere vinegar.

The results show that the viscosity of the emulsion increases with the increase of the COOH % and decreases with the increase of R. As the percentage of COON % increases, the absorption rate of the film increases gradually, but decreases with the increase of R or crosslinked dosage. The value of R or COOH % changes, and the intensity of the T spin-off changes; In addition, the crosslinking agent can increase the function of T peel strength, and the amount of crosslinking agent is 9%.




Chinese name: Diethyl toluene diamine(DETDA)

Diethyltoluenediamine Raw material ：

TDA industrial, Sichuan production

Ethylene (Et) polymer grade, Shanghai production

TEA industrial imports

A reagent grade additives


Crosslinking is designed to improve the stability, creep, and environmental stress cracking. Through crosslinking, the crystallinity of uhmw-pe is reduced, and the covered toughness is shown again. Crosslinking can be classified into chemical crosslinking and radiation crosslinking.

Chemical crosslinking occurs when the appropriate crosslinking agent is added to the uhmw-pe, and it occurs in the fusion process. Radiation crosslinking is the use of an electron beam or gamma ray to direct high molecular weight polyethylene (uhmw-pe) products to the molecular cross-linking. High molecular weight polyethylene (uhmw-pe) chemical crosslinking is also classified as peroxide crosslinking and coupling agent.

The process of peroxide crosslinking is divided into three stages: mixing, forming and crosslinking. When mixing the ultra-high molecular weight polyethylene (uhmw-pe) and superoxide melt blending, ultra-high molecular weight polyethylene (uhmw-pe) under the effect of peroxide produce free radicals, radical coupling and crosslinking. This step is to ensure that the temperature is not too high for the resin to be fully cross-linked. After mixing get low crosslinking degree can continue to type crosslinked ultra-high molecular weight polyethylene (uhmw-pe), under the higher temperature than the mixed molding parts, cross-linking processing again.

Ultra-high molecular weight polyethylene (uhmw-pe) after oxide crosslinking on the structure and thermoplastics, thermosets and vulcanized rubber is different, it has a body shape is not completely crosslinking structure, therefore, both in the performance of the three characteristics, namely both hot plasticity and excellent properties, such as hardness, toughness and resistance to stress cracking.

It can be used as a crosslinking agent with 2, 5-dimethyl - 2, 5 peroxide, tert-butyl. Dicumyl peroxide (DCP) as crosslinking agent was studied, the results showed that: the DCP dosage is less than 1%, can make the impact strength than pure ultra-high molecular weight polyethylene (uhmw-pe) increased by 15% ~ 20%, especially the DCP dosage was 0.25%, the impact strength can be increased by 48%. As the usage of DCP increases, the heat deformation temperature increases, which can be used in the heat-resistant pipe of the water heating system.

Copyright: Zhang Jia Gang YaRui Chemical co.,Ltd 

Diethyl toluene diamine(DETDA)  http://www.yaruichem.com