Q:What are the reasons for rubber cracking after shock absorption of rubber products?

Shock absorber rubber suspension products, durable rubber cracking:1, rubber aging, weathering, heat resistance;

Q:Which kind of rubber has the best wear resistance?

Ding Qing rubber (nitrile, butadiene, rubber)It's also called NBR.Butadiene and acrylonitrile are obtained by emulsion polymerization. NBR is mainly produced by low temperature emulsion polymerization. It has excellent oil resistance, high wear resistance, good heat resistance and strong adhesive force. Its disadvantages are poor resistance to low temperature, poor ozone resistance, poor electrical properties, and slightly lower elasticity.

Q:What are the applications of rubber airbags in the automotive field?

Rubber accounts for 5% of the total weight of automotive materials, with an average of 100200 rubber parts per car, with a total number of 200500. Along with the automobile reliability, environmental protection and energy saving requirements continue to increase, and rubber materials, product structure optimization, improve the heat resistance, low temperature resistance, long aging, oil resistance, leakage resistance, long-term fatigue, and further reduce the cost has become the main topic of the development of automotive rubber. Fluorine rubber, silicone rubber, acrylic rubber and other special heat-resistant elastic body will still be the mainstream of the future direction of the development of automobile rubber.

Q:Is there any poison in the processing and testing of rubber products? What about the salary?

There will be some flavor at the time of processing, as well as some fillers, oil will be a little toxic, and some crosslinking agents may be toxic. But now the mixer extruder is mostly closed, so it is common to pay attention to respiratory protection.A mechanical test is usually less toxic, and a glove is enough.If you do thermal testing, such as TGA, DMA, DSC and so on, it will degrade and release small molecules, especially if the aromatic oil is filled, be sure to pay attention to.

Q:Explain why butyl rubber is more resistant to oxidation and aging than other elastomers, such as natural rubber

The macromolecular structure unit of natural rubber is isoprene, and the macromolecular chain is mainly composed of CIS -1, 4 polyisoprene. NR is the mechanical and processability comprehensive properties of all rubbers

Q:How to make white rubber products do not yellow or delay yellowing time?

1, raw material itself yellow degeneration, for example, NR aging resistance than SBR and BR difference.2, the matching of accelerant system. The accelerator can use DM and M to achieve yellow change 4, but the whole system needs to be adjusted. The use of anti yellowing enhancers such as two dithiocarbamate on yellow Bianyou benefits, but at the expense of great property and operation. The faster the sulfidation rate, the less the chance of breaking the chain, and the aging degree is restrained. But at the same time sacrificing the comprehensive nature. The cross-linking bonds generated by rapid vulcanization and slow vulcanization are different. For example, tension, tear and so on, are greatly affected. But the elasticity brittleness will increase.

Q:How can rubber be made into rubber when it is made?

Just cut off the rubber is not available, belongs to the first rubber, according to the products and the use of working conditions to set the formula, made of mixed rubber, vulcanized on the vulcanization machine with mold has been good, curing after trimming, testing, packaging. The required rubber products will be ready.The process flow of the production process is:Raw material preparation, plasticization, blending, molding, vulcanizing, cleaning and testing

Q:What is the cause of the bursting of rubber products and how should they be improved?

Improvement measures: 1.. Adjust the molding sulfuration temperature, adjust the temperature of the upper and lower plate. 2. adjust the exhaust distance and exhaust time. 3. in strict accordance with the mixing process standards or adjust the formula and mixing process, avoid the use of time is too long to place material (fast cooked). 4., in the explosive edge position plus running trough. 5. control the weight of a single adhesive.

Q:Are rubber products poisonous? What harm?

General rubber is not poisonous.

Q:Rubber rolling process for making rubber products

The rolling process has become a rolling process.The principle of rolling process: using pressure between the calender roller, the material plastic flow deformation, the final film made with the size and geometry of the provisions of section a section, or the rubber covering process in textile or fabric made of metal surface has a certain thickness of the tape section.