SID/Sid aramid/chitosan fiber chemical high-speed sedimentation machine

SID/Sid aramid/chitosan fiber chemical high-speed sedimentation machine

(For details and prices, the consulting company has a prototype that can be tested for free!)

Fibrid, also known as linear or pulp, is a thin film like fibrous material with a thickness of one to several micrometers and a length ranging from tens of micrometers to several millimeters. It is obtained by injecting a large amount of coagulant into a strongly stirred polymer dilute solution, or by injecting the polymer solution into a high-speed stirring coagulation bath in a fine stream for sedimentation. At present, common precipitated fibers include aramid precipitated fibers, chitosan precipitated fibers, cellulose precipitated fibers, and other polymer precipitated fibers. Among them, aramid precipitated fibers are mostly used in the paper industry, while chitosan precipitated fibers are mostly used in the field of biomedical materials.

Kevlar is an organic fiber in the aromatic polyamide family.Full aromatic polyamide (aramid)Their properties and chemical composition distinguish them from other commercially available synthetic fibers. Kevlar has high strength, high modulus, and high toughness. And thermal stability. Its development is aimed at increasingly demanding industrial and high-tech applications

Kevlar pulp is a highly fibrillated short fiber that can be dispersed as a special additive into different matrix materials. Kevlar pulp has high tensile strength and low density, and is used as a reinforcing material in various fields, such as friction materials and sealing materials.

Application of Kevlar pulp1. Protective gloves and equipment 2. Reinforced brake pads 3. Reinforced tires 4. Material applications 5. Reinforced automotive hoses and conveyor belts 6. Connected 7. Automotive sunshades 8. Durable electrical insulation materials 9. High voltage turbocharged hoses 10. Automotive surface protection systems, etc

Chitosan）Also known as deacetylated chitin, it is obtained by deacetylation of chitin, which is widely present in nature. Its chemical name is polyglucosamine (1-4) -2-amino-B-D glucose. Since the Frenchman Rouget first obtained chitosan in 1859, the excellent properties of this natural polymer, such as biological functionality and compatibility, blood compatibility, safety, and microbial degradation, have been widely studied in various industries. Significant progress has been made in the application research of pharmaceuticals, food, chemical engineering, cosmetics, water treatment, metal extraction and recovery, biomedical engineering, and many other fields. There have been research reports on the lipid-lowering and hypoglycemic effects of chitosan on patients. Meanwhile, chitosan is included in the national food additive use standard GB-2760 as a thickener and coating agent

Properties of Chitosan Fiber

Linear density:The linear density of industrialized chitosan fibers is generally around 1.6 dtex.

Fracture strength:The fracture strength of industrialized chitosan fibers is 1.4-2.0 cN/dtex, which is lower compared to commonly used fibers.

Fracture elongation:The elongation at break of chitosan fibers is 7% to 15%, which is smaller than synthetic fibers such as polyester and nylon.

Initial modulus:The initial modulus of chitosan fibers is 70-95 cN/dtex, which is almost higher than the initial modulus of all common synthetic fibers. Chitosan fibers are difficult to deform under low loads and have very high rigidity.

regain:The moisture regain of chitosan fibers is generally between 12% and 18%. Due to the presence of a large number of hydrophilic groups on the molecular chain, they have strong moisture absorption properties.

Antibacterial performance:Chitosan protonated can undergo electrostatic neutralization reaction with bacteria and has excellent antibacterial properties.

Friction performance:The friction coefficient of chitosan fibers is around 1.5, indicating good friction performance of the fibers.

Curling performance:Chitosan fibers have high rigidity and are not easily curled.

Electrical performance:The specific resistance of chitosan fibers is not significantly different from that of natural fibers, and is much lower than other synthetic fibers.

Swelling ability:The swelling rate of chitosan fibers is higher than that of viscose fibers. After swelling, their elasticity decreases, friction coefficient increases, and elongation also increases.

Dispersion preparation of pulp Kevlar aramid pulp 1414 high-efficiency mixing disperser:

According to a certain ratio, mix DMAC with water and pour it into one inlet tank. Take the proportion of aramid raw liquid and pour it into another inlet tank. Control the feeding ratio of the liquid in the two tanks through a metering pump. Turn on the mixing and dispersing machine and adjust the speed to the working speed. At the same time, turn on two metering pumps to start the fibrosis reaction. After hardening, the fibers are refined to the required size of pulp through the dispersing disc, and the required Kevlar pulp is produced

SID/Sid aramid/chitosan fiber chemical high-speed sedimentation machineEquipment Introduction:

Specially designed to mix and disperse powders that are difficult to dissolve in liquids, while minimizing the amount of air mixed in. The rotor/stator design generates strong shear forces, all pre hydrated, without "fish eye" dispersion side effects. The dispersion and mixing process only takes a small amount of time, does not have excessive effects on shear sensitive products, and can be processed in a cyclic manner.

Equipment principle:

By utilizing the high-speed rotation of a special rotor to generate a vacuum, the aramid/chitosan polymerization solution is uniformly sucked into the hopper or working chamber, and evenly distributed in the rapidly flowing diluent flow. In the liquid flow, the aramid/chitosan polymerization solution is instantly solidified without producing agglomerated large blocks.

Applicable process:

Suitable for powder liquid mixing in industries such as pharmaceuticals, daily chemicals, food, and chemical engineering.

note

*The flow range in the table refers to the data measured when the medium is "water";
*The amount of powder absorption depends on the characteristics of the powder itself (such as particle size, swelling ability, flowability, etc.). If it cannot be confirmed, please provide samples or select based on experimental data;
*If there are special working conditions, please provide detailed and accurate technical parameters and process requirements, and SID professional engineers will provide special design solutions;
*The data in this table is subject to change without prior notice, and the correct parameters are based on the actual product provided.