Relationship between properties and structure of NBRZn(MAA)_2 alloy

Processing. Application of Can-nosed Mosquitoes, Relationship between the Properties and Structures of Human 2 Alloy CHEN Zhao-hui WANG Di-zhen LUO Dong-shan ZHENG 1 College of Materials Science, South China University of Technology, Guangzhou. 510641 Guangdong Xinli Special Shed Products Co., Ltd. is the best. Fourier transform infrared light and analysis by scanning electron microscopy. During the vulcanization process. 2,1 and! 1 Grafting and co-crosslinking reactions occurred. Formation of ionic bridges. As the amount of 2.1 in the system increases, the homopolymer of one person changes from a dispersed phase to a continuous phase network, so that the mechanical properties of the alloy can be significantly improved. In order to improve the performance of the rubber, a highly reactive route is adopted. 12. Japan 2, The company developed a high-saturated nitrile rubber methacrylic acid 7-man 2 polymer alloy with a high tensile strength of 60 cu. ft. 3, excellent heat resistance of processing. Durability and wear resistance, etc. 3, can be used for grade 1 industrial seals and other rubber products used in harsh conditions, such as tanks with plastic track shoes 41. Currently saturated nitrile rubber 1 can also be used together Shake off with a well-performing media. ,this. 1 On the basis of self-made humans, the method of agro-in situ reaction prepared 8 such as human 2 alloys, and discussed the relationship between alloy performance and structure.

1 Test section 1.1 Raw material produced oxime cumene 0, sulfur 8 antioxidant 1.

Zinc oxide and stearic acid are all domestic industrial raw materials; 1.2 sample preparation formula quality parts. In the same 3,2 Fourier Transform Infrared Spectrometer 1 test, the blade vulcanizate and vulcanizate of the blade alloy scrape a little powder. In addition, 2 to 60 parts of the vulcanizate powder is heated by a mixture of 6,1 hydrochloric acid in acetone and methanol, extracted by acetone and methanol, respectively, and vacuum dried.

Sample 2121, menstrual fluid, frozen after the crash on the other. Seventy-six and sixty-six samples of the plant 7 and the Van-Fighting plant were heated and treated with a mixture of hydrochloric acid and methanol of 6 yang and 1 and acetone and methanol were respectively extracted and dried in vacuum.

1.3 Test Instruments and Methods Samples were prepared using a 251 electrothermic plate vulcanizer. The vulcanization temperature it1600Co was measured using a domestic type 2 vulcanometer to determine the vulcanization curve. The vulcanization time was determined and the mechanical properties were tested according to 08 D 52882. Therefore, a 6700-inch Boolean-transform infrared spectrometer recorded the infrared light of each sample. Therefore, a fishery model 10183 was used to spray gold on the sample and the 550-type 3 watt was used to observe the cross-section of the sample.

2 Results and discussion 2.1 Effect of the amount of ethyl ester on the mechanical properties of 8, and 2 Received the date of 1999041 What revised date of 1999 0927. Author brief introduction Chen Zhaohui Male, 26 years old, Master. Has published 3 papers.

High, peaked at 4,060 servings. 100. Both the tensile stress and the Shore hardness increase significantly, indicating that the retention ratio of 2 to 2 (2) is still slightly higher, and the reason for the high strength of the sample at higher elongation may be Everyone reacts in situ during the vulcanization process, that is, F double bonds are grafted and co-crosslinked with NBR to form ionomeric bridges. In the external force, ion-crosslinking points can be exchanged, that is, a new ionic bond is generated near the disengagement of the leaving keys. such!ç–‹ maintains the cross-linking point, and absorbs some of the energy so that the local stress can eliminate the fire, leading to the tensile strength of the system. The low degree of polymerization formed during the curing process, the homopolymer can be deformed along the stretched side, Similar to the call of rayon fibers; 3 increases with 72 trials.

As a result, the homopolymer can be divided into halves, and the phase gradually becomes a continuous phase network, so that the mechanical properties of the alloy are significantly improved.

2.2 Analysis of only one absorption peak 2 and 260 copies of uncured rubber spectrum is now multimodal, including 2 in 157, 1. and 1417, 1 carboxylate, 0 stretching vibration absorption peak, etc. Very strong. 712 Vulcanized rubber spectrum pavilion in 13001700 exhibited two strong absorption edges within 1 and could be 13 in vulcanization, and the strong interaction occurred between 1 and 1; including graft co-crosslinking and electrostatic interaction, etc. The uneven chemical environment in the micro-region causes the infrared absorption spectrum of the group to shift to form a wider band.

Absorption peaks of the 0-deformation vibrations on the carbon double bonds, which are significantly reduced in the corresponding vulcanizates, indicate that the double bonds of the deuterium-in-two participate in the reactions including self-polymerization or grafting and cross-linking with the rubber molecules. By adding 2 to the powder, the homopolymer of H 2 O 2 can also be dissolved in the mixture.

If it is not grafted and co-crosslinked with the rubber hopper, it should be extracted after extraction and its characteristic peak should disappear.

Comparing 1 to Magic and 16 it can be seen that the characteristic absorption peak of 1 carboxylate at 1570 and 1417, and the zero-deformation vibration absorption peak at 815. Explanation (1) Everyone and their homopolymers have been extracted and one new absorption peak of the 1703 plant of the carboxylic acid carbohydrazide has appeared. It may be due to 2 that 1. and 1; 1 shirts become bridges containing metal ions, while the 2+ in the bridges can interact with the mixture, breaking the salt bonds, forming carboxylic acids, thus illustrating the system There are still grafts that can be extracted with +energy waves.

From the above analysis, it can be seen that in the process of peroxide curing, Heyi Renren 2 may be involved in cross-linking with 8 animals. That is, by opening the double bonds at both ends of the molecule, it is grafted with 86 molecules to form single molecules or The number of cross-linked bonds of a multi-molecular homopolymer containing ionic bond bridges and 1 vulcanizate increases its cross-linking density, so that 18 individuals 2 have good physical and mechanical properties.

The order of each person's, plus, crosslinked network of vulcanizates produces a corresponding change in results. 23 white bright spot is 2, wide-grained, the darker part of the color is the rubber phase, can be compared with the whole gum, said only the pure rubber impact strong liquid nitrogen conditions. When the amount of ethyl acetate 2 is 20 parts, the 2 in 2 homopolymer formed in the vulcanization process may still be a dispersed phase, and the continuous and network deniers have not yet formed because of the occurrence of the human and its homopolymer Meyer alone. Branches and co-crosslinking, so that the alloy vulcanizate has a fixed strength, so the impact of the cross-section 2 shows a more cluttered block area. When 2 is used as a human 2 dose, the homopolymer of human 2 may have formed a continuous phase network. With the interaction, it is strong, so its impact is broken lL, order 2 with please for 60 copies. The network formed by the homopolymer of human 2 is improved and improved. In addition to grafting and co-crosslinking, the chemical and physical effects of 1 attack, 1 attack, 2 and fly are the best, and the impact section 24 exhibits regular parallel zigzag stripes. At this time, the alloy should have a better picture and this coincides with the photo of the 5 rivers under the condition of liquid nitrogen. Comparing the two, it can be found that the Xun 712 vulcanized limbs that were treated by extraction showed obvious hollowing. This may be due to the destruction of 1 salt bonds and the extraction of human carcasses and their homopolymers. This aspect explains the necessity and effectiveness of testing the sample into the hall only when testing. On the other hand, it also shows that in the 72 gold system. Ethylene can be present in the form of monomerized polymers, etc., and has a strong chemical and physical action with the rubber phase, so that the alloy obtains good mechanical properties. 3 Conclusions 3, 2 and 1; 1 In situ reaction in the vulcanization process 1 High-performance alloy. The alloy has the best mechanical properties when the amount of 2 to 2 is 4,060 parts.

43ZnMAA; hair 4 grafted and co-crosslinked to form a bond bridge pin. The cross-linking density of the vulcanizate is increased, making the cross-linked network structure more perfect.

2 Nomura Eunjo, Takano Ren, Toyota Ming Xuan. Polymethacrylate front reinforcing hydrogenated nitrile rubber structure analysis knife, Japan Association Chi Japanese, 199366 Saito Takao, Asada Mizuko, Nishimura Hiroshi. The polymerization behavior of zinc methacrylate knife. Japanese 3 Association Chi Japanese, 19946712867871 Yang Wei Xie Hongquan. Effects of Acrylic Ionic Polymers on Their Mechanical Properties 1. Synthetic Rubber Industry, 1987, 10, 273 Domestic News Tubular Conveyor Belts Passed the Identification of Domestic No. 1 Tubular Conveyor Belts Developed by Shen 1 Changqiao Tape Co., Ltd. Zip Code 0034 On January 14, 2000, it passed the technical appraisal organized by the Science and Technology Commission of Shenyang City in Shenyang. The conveyor belt can form a circular tube when conveying materials, so that the material can run in a sealed state without spilling or flying. Not polluting the environment, special, 1 powdery and easy to fly materials, can be used in the coal mine power plant 7 in the mud plant fertilizer factory paper mills, mines and other places of material transportation, trial production after the use of braided conveyor belt 3 after use. The product quality supervision and inspection institute of the Shenbao Municipality has exceeded the technical indicators of the Japanese products. Huainan Xinzhuanghe Coal Mine, Yuhuahe Fertilizer Plant, Hubei Huaxin Cement, Guizhou Kaili Power Plant and other units used the product for three years, and its service performance and lifespan have reached the level of Japanese wood products. Can replace the imported products, Liao, provincial science and technology by the Institute of science and technology projects, new search Ming, the country is still particularly tubular structure of the conveyor belt.

Experts believe that the tubular conveyor belt has a unique structure and characteristics, high scientific and technological content, good economic returns, a wide range of applications, is conducive to environmental protection, will make the conveyor belt replacement, development prospects are considerable.

Li Zidong, Shenyang Institute of Technology