PVC Stabalizer for Plastic Products,Profiles,Pipes,Tubes
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 2000 kg
- Supply Capability:
- 100000 kg/month
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1. Structure of Pvc Impact Modifier Description
Classification:Chemical Auxiliary Agent
CAS No.:63231-66-3
Other Names:chlorinated polyethylene
Appearance:White Powder
Chlorine Content:35%
Volatiles Content:0.3%
Tearing Strength:8.0Mpa
Elogation at Break:800%
2. Main Features of the Calcium Pvc Compound Stabilizer/Specification
Item | Unit | Index | |
Chlorine content | % | 35±1 | |
Thermal decomposition temperature | ≥ 165 | ||
Volatile Matter content | % | ≤0.3 | |
Remains crystallinity | % | ≤ 5 | |
Tearing Strength | Mpa | ≥8.0 | |
Rate of filtration | 36mesh | % | ≥99 |
Shore Hardness A | ° | ≤57 | |
Apparent Density | g/ml | ≥0.55 | |
Impurity Particle | PC/ 10g | 10 | |
WhitenessR457 | ° | ≥86 | |
| Elogation at break | % | 800 | |
3.Images
4.FAQ of Pvc Impact Modifier
1.PVC Impact Modifier is Mainly used for producing PVC profiles, U-PVC waterpipe & sewer pipe, cold curved pipe line, PVC blowing board and PVC extrusion board
2.Delivery date:30days
3.Proper for plastic pipe and profile stablizer
4.Payment:30% in advance,70% against BL copy
- Q: When there is a catalyst in the chemical equation, it is not necessary to match the atoms of the catalyst
- No need, because the catalyst in the chemical reaction before and after the quality of the same
- Q: Can a catalyst decrease the rate of a chemical reaction? Please give an example if yes.
- no, by defintion the catalyst speeds up the reaction.
- Q: Why can't catalysts make an unfavorable reaction favorable?Can anyone give me a relatively simple explanation for this?Thank you so much in advance!
- Catalysts, as enzymes, only change the activation energy (the energy the compound needs to gain to transform into products), they don't change the Gibbs energy values of reactants nor products. Therefore, if the delta G of the reaction is positive, it'll still need free energy to complete. They make a reaction complete faster than in normal conditions, but don't change the actual possibility for that reaction to happen. In the human body, a lot of reactions of catabolism have a positive G value and these reactions needs to get energy from other coupled reactions that have a negative value, so the total value is still negative. Many of them use hydrolysis of ATP to provide that energy, as its hydrolysis is about -30 kJ/mol in physiological conditions. I don't know what class you're in to ask this question, so can't really know if this answer is too simple or complicated for u... sorry in advance! Jo?l
- Q: Why the catalyst is required to have a large surface area and a rich pore structure
- So that the use of more fully catalyst, the effect is better.
- Q: Could you please explain it, i know they increase reaction rates but how?
- A catalyst lowers the activation energy (the minimum amount of energy needed for a reaction to take place). This means that the particles can react with less energy than they needed before the catalyst was added. (Think about it: if the government lowered the legal age to buy cigarettes, then more people could legally buy cigarettes. Similarly, if we lower the amount of energy needed for particles to react, then more particles can react). Also, a catalyst provides a surface on which the reaction can take place. This increases the number of collisions between the particles of the substances that are reacting.
- Q: What is the difference between biological enzymes and chemical catalysts?
- Biological enzymes are an environmentally friendly biocatalyst with greater superiority. Such as the reaction speed, processing conditions (such as temperature, PH value, etc.) more moderate, safe and easy to control the operation and can replace the strong alkali and other chemicals. The biological enzymes act only on specific substrates, with little damage to the substrate and the biodegradation of the treated wastewater to reduce water and energy consumption. After more than a century of research by scientists, more than 3,000 known enzymes are generally considered. The application of biological enzymes in the textile industry, initially the application of α-amylase in cotton fabric desizing process, and later developed into the cellulase used in denim washing and bio-polishing process, and now the development of pectinase to the biological scouring Technology, hydrogen peroxide enzyme catalytic decomposition technology, protease in silk and wool fiber applications
- Q: i keep messing up on those 2 simple things haha i would apprecaite some help.
- A catalyst is a substance that affects the rate of a reaction. It may participate, but cannot be consumed in the reaction. For example, KMnO4 catalyzes the breakdown of H2O2 into H2O and O2. In the end, as much KMnO4 exists as did in the beginning. An enzyme is a biochemical reagent that allows an organism to convert a compound into other compounds. This is part of metabolic processes. For example, maltose (a sugar composed of a chain of two glucose molecules) can be broken down into glucose by the maltase enzyme. Unlike a catalyst, enzymes may or may not be consumed/altered in the metabolic processes.
- Q: What chemical reactions can water do the catalyst?
- So far heard, but can and Na and other metal reaction
- Q: How does the catalyst generally add to the organic chemical reaction?
- In the case of heterogeneous catalysis, the specific surface of the catalyst, in addition to the activity of the catalyst, is an important factor in determining the reaction rate, which means that the specific surface for catalysis is large and the reaction is as fast as the whole. So the overall principle in understanding the activity of the premise of the catalyst, would like to quickly add a little more.
- Q: Can you describe at least 4 ways a catalyst can lower the activation energy of a reaction?
- To see how a catalyst accelerates the reaction, we need to look at the potential energy diagram shown below which compares the non-catalytic and the catalytic reaction. For the non-catalytic reaction, the figure is simply the familiar way to visualize the Arrhenius equation: the reaction proceeds when A and B collide with succificient energy to overcome the activation barrier. The change in Gibbs free energy between reactants, A + B, and the product P is delta G. The catalytic reaction starts by bonding of the reactants A and B to the catalyst, in a spontaneous reaction. Hence, the formation of this complex is exothermic and the free energy is lowered. There then follows the reaction between A and B while they are bound to the catalyst. This step is associated with an activation energy; however, it is significantly lower than that for the uncatalyzed reaction. Finally, the product P seperates from the catalyst in an endothermic step. The energy diagram illustrates 4 ways the catalyst works : The catalyst offers an alternative path for the reaction that is energetically more favorable The activation energy of the catalytic reaction is significantly smaller than that of the uncatalyzed reaction; hence the rate of the catalytic reaction is much larger The overall change in free energy for the catalytic reaction equals that of the uncatalyzed reaction. Hence, the catalyst does not affect the equilibrium constant for the overall reaction. A catalyst cannot change the thermodynamics of a reaction but it can change the kinetics. The catalyst accelerates both the forward and the reverse reaction to the same extent. In other words, if a catalyst accelerates the formation of product P from A and B, it will do the same for the decomposition of P into A and B.
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PVC Stabalizer for Plastic Products,Profiles,Pipes,Tubes
- Ref Price:
-
- Loading Port:
- Qingdao
- Payment Terms:
- TT or LC
- Min Order Qty:
- 2000 kg
- Supply Capability:
- 100000 kg/month
OKorder Service Pledge
Quality Product, Order Online Tracking, Timely Delivery
OKorder Financial Service
Credit Rating, Credit Services, Credit Purchasing
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