In terms of building materials, industrial products, daily necessities, floor leather, floor tiles, artificial leather, pipes, wires and cables, packaging films, bottles, foaming materials, sealing materials, and fibers, PVC was the world`s largest production of general-purpose plastics, and its applications are very widely. Widely used in all aspects.
PVC is a white powder with an amorphous structure. The degree of branching is relatively small. The relative density is about 1.4. The glass transition temperature is 77~90°C. It begins to decompose at about 170°C. It has poor stability to light and heat. After prolonged exposure to sunlight, it will decompose to produce hydrogen chloride, and further automatically catalyze the decomposition, causing discoloration, and the physical and mechanical properties also rapidly decline. In actual applications, stabilizers must be added to improve the stability of heat and light.
the Degree of polymerization of SG5 is 1000. usually we also call PVC Resin S1000. Its K-value is K67.
PVC RESIN SG5,Polyvinyl Chloride,Polyvinyl Chloride SG5,PVC Resin K67 Henan Shunbang Chemical Industry CO.,Ltd , https://www.suspensionpvc.com
Counting the recent events of LED chip manufacturers
According to the Korean media ETNews report, Sanan Optoelectronics said that in order to balance the supply and demand of the market, from May 2016, the price of some LED chips will increase by about 10%. Sanan Optoelectronics is the leading LED chip industry in the mainland. In the past three years, 28% of the recurring benefits have come from government grants. Since the regular interest is equal to the sum of the business benefit and the extra-industry income, often after the recent official sales of Jingyuan Optoelectronics in the mainland, Jingyuan Baochen Optoelectronics, the price of some series of LED chips will rise, the mainland LED industry Sanan Optoelectronics and Huacan Optoelectronics The price of LED chips has been raised, and the price of LED chips that have continued to decline in recent years has rebounded. According to the Korean media ETNews report, Sanan Optoelectronics said that in order to balance the supply and demand of the market, from May 2016, the price of some LED chips will increase by about 10%. Sanan Optoelectronics is the leading LED chip industry in the mainland. In the past three years, 28% of the recurring benefits have come from government grants. Since the regular interest equals the sum of the business benefit and the extra-industry benefit, the 28% of the regular interest means what can be imagined. The company’s LED chip price bottomed out. Crystal TV has frozen 25% of its capacity since the fourth quarter of last year. At the LED Factory Super Shareholders' Meeting, Yiguang, the owner of Yiguang, and Wu Qinghui, Dongbei Dongfang, expressed their support for the start-up of the production mechanism of the crystal power, and shouted at the angle of the large wafer buyers, the price of the chip has bottomed out. Ye Weifu, the chairman of Everlight, is known for his execution in the industry. He said that older equipment has less economic value, more gas and less efficiency, and more and more losses. It is better to cut production and eliminate the machine that should be shut down. Ye Haofu also stressed that Yiguang is mainly focusing on wafers of Jingdian. At present, the price of wafers has stabilized, and even some prices have risen too low. Although it is difficult to rise in all directions, "but at least it will not fall." Wu Qinghui, chairman of Dongbei, pointed out that Jingdian shut down some stoves (referring to production reduction), and it can save costs by replacing it with new furnaces. The cost of gas and equipment required for wafer plant production is quite high, and the production can be reduced and the operating efficiency can be improved. All walks of life should be treated positively. He believes that the worst situation in the industry is like this. The economy should have bottomed out in the fourth quarter of last year. Since the fourth quarter of last year, Jingdian has frozen 25% of its production capacity, which is the largest in history. The number of operating Blu-ray MOCVD machines has dropped from 450 to 375, and the number of wafers is still over 100. With a capacity of 10,000 pieces, the rate of recovery has returned to 90%. Even if it has cut its production capacity by 25%, the capacity of equipment driven by Jingdian is still more than 300 units in Sanan. Li Bingjie, chairman of Jingdian, said that since the company’s production cuts, the price of the wafer has stabilized, and it is still over 20%, mainly because the output value of LED lighting accounts for 45% of the total output value, and the total proportion of backlights is 70% higher. The lighting price is not good, it is very hurt to the industry, and it is difficult to balance supply and demand in the short term. The production reduction action is common in all kinds of electronics industry. The DRAM, LCD, and foundry industries usually regard the cash cost as the key to reducing production. Once the price falls below the cash cost of the product, it means that even the material money is not enough. In order to stop bleeding, the production reduction plan is usually started. painting. In the past, electronics factory shouting production cuts is usually a bottoming out signal, which often encourages stock prices to rise. However, this wave of power cuts has not stabilized the stock price. Analysts believe that the main reason is that competitors have not followed up on production cuts. LED chips are returning to the rational stage. The price increase of Jingdian is considered to be due to the excessive overcapacity of LED chips and the excessive price decline. After this increase, the chip manufacturers will only return to a certain normal profit level. However, from the price increase of packaging manufacturers to the price increase of chip manufacturers, it can be seen that the overall supply and demand relationship of the LED industry is gradually improving. The price of LEDs will not fall in the past few years, and the industry's prosperity will continue to increase. After the LED chip industry has experienced investment heat and overcapacity, it is gradually returning to the rational stage, and many industry experts expect this year to come to the warming process. Domestic chip giant Huacan Optoelectronics has also guided the correct development of the company through a number of positive measures this year. The LED investment, chip and sapphire projects with a total investment of 6 billion yuan have recently started the groundbreaking ceremony in Yiwu, Zhejiang. In addition, the 1.5 billion yuan cooperation agreement signed with Mulinsen, the participation of 3 million shares in the North, and the acquisition of Blue Crystal Technology are important layouts of Huacan Optoelectronics this year. The LED epitaxy, chip and industrial chain extension projects mainly focus on the construction of an internationally renowned LED industry base. The project implementation will drive the upstream and downstream of the LED industry chain and the agglomeration of supporting enterprises, which will help further expand the company's scale and cost advantages and enhance the company's core competition. Force and industry influence. Bian Difei, vice president of Huacan Optoelectronics, said. Moreover, Huacan Optoelectronics' site in Zhangjiagang is also expected to start 15 MOCVD, which has become another source of new capacity.