Cellulose manufacturers. [Sanneng chemical] hydroxypropylmethylcellulose discoloration temperature: 190-200 ℃. Pay attention to environmental protection and health. The safety and environmental protection of any chemical agent are the key factors affecting the health of children. From the perspective of the popular toy glue, it can be found that only with better environmental protection and health can the toy glue be used More reassuring. Toys, as the materials that directly contact with family children, also need to have better health and safety. Only by ensuring the safety and reliability of this high-quality and reassuring special water consumption device, can children's play experience be improved with a more environmentally friendly attribute when they are used. All in all, considering all kinds of factors, we can make this kind of special glue for toys play a better role. From the analysis of the brand and environmental protection properties of this kind of special glue for toys, the use of new polymer glue can make the production and reinforcement effect of toys more stable. In some large-scale production and continuous adhesion industries, it is also necessary to ensure the adhesion speed of this special toy glue, and create more economic benefits for enterprises through comprehensive comparison in all aspects.
PBO fiber with high thermal stability is considered to be an organic fiber with high thermal stability at present. When the working temperature is as high as 300-500 ° C, the tensile strength retention rate is about 48 after 100 hours in air at 300 ° C, and it can still maintain 40 at 500 ° C. At 400 ° C, HM PBO fiber can maintain a modulus of 75. In addition, PBO has an extremely high anti ignitability, with a LOI of 68, which is second only to polytetrafluoroethylene fiber (LOI of 95) in organic fiber, and produces little toxic gases such as CO and HCN when burning at 750 ° C, which is much lower than other aromatic polyamide fibers.
At present, most urban roads use asphalt concrete pavement, but in practical application, because of its poor durability, short life, high maintenance costs, it has become increasingly unable to meet the needs of urban development. The use of cement concrete pavement, to a certain extent, can overcome the above defects, has gradually been recognized by people. But the crack problem that brings along also perplexes people. In recent years, synthetic fiber reinforced concrete has been widely studied and applied at home and abroad. By adding polypropylene anti crack fiber to pavement concrete, we can play the role of anti crack and effectively improve the performance of concrete, and have a good effect of anti crack and toughening. Polypropylene fiber is a non-toxic material which does not absorb water, has low thermal conductivity and high resistance to acid, alkali and salt. After surface treatment, it can effectively improve the crack resistance, impact resistance and frost resistance of concrete, and improve the fatigue resistance of concrete. It is an excellent pavement engineering material. Polypropylene crack resistant fiber can improve the crack resistance of concrete
Application field 1. Bonding mortar and tile adhesive: yx-03 redispersible latex powder can change the original properties of cement, including organic matter and inorganic matter, so as to achieve good bonding effect. 2. Plastering mortar, powder polystyrene particles, flexible water-resistant putty, tile pointing agent: yx-03 redispersible latex powder can change the original cement's steel, enhance the flexibility of the cement, and improve the cement's bonding effect.
In premixed mortar, the addition of cellulose ether is very low, but it can significantly improve the performance of wet mortar, which is a major additive affecting the construction performance of mortar. The reasonable selection of different varieties, different viscosity, different particle size, different viscosity and addition of cellulose ether has a positive impact on the improvement of dry mortar performance. At present, many masonry and plastering mortars have poor water retention performance, and water slurry separation will occur after a few minutes' standing. Water retention is an important property of methylcellulose ether, which is also concerned by many dry mortar manufacturers in China, especially those in the high temperature areas in the south. The factors that affect the water retention effect of dry mortar include the amount of MC added, MC viscosity, particle fineness and the temperature of using environment. Cellulose ether is a kind of synthetic polymer which is made from natural cellulose by chemical modification. Cellulose ether is a derivative of natural cellulose. Unlike synthetic polymers, cellulose ether is based on cellulose, a natural polymer compound. Due to the special structure of natural cellulose, cellulose itself has no ability to react with etherifying agent. However, after swelling agent treatment, the strong hydrogen bond between and within the molecular chain was destroyed, and the active release of hydroxyl group turned into alkali cellulose with reaction ability. After etherification agent reaction - OH group turned into - or group, cellulose ether was obtained.