2014年10月8日星期三

Processing aid of the role and development

Processing aid is a play a supporting role in the matter, generally have filter aid, clarification, adsorption, lubrication, stripping, bleaching, peeling, solvent extraction, fermentation with nutrients like. Processing aid in the development and application process, according to the product ingredients be divided into the following broad categories: methyl methacrylate acrylate copolymer, styrene copolymer, acrylonitrile / styrene, etc., currently used the largest, the best is acrylate copolymer. PVC processing aid is a very special thermoplastic resin processing its pure Processing aid , poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. Such as: lubricants, heat stabilizers, impact modifiers, processing aids and the like. With the development of PVC industry, especially plastic profile and the rapid development of plastic pipe industry, the demand for processing aid is also growing rapidly. Processing aid primary role is: to Processing aid
  the process of PVC plastics, improving the rheological properties of the thermoplastic melt, improve the mechanical properties of the melt under the heat elastic state. Integrated functions such as improving the appearance of quality products. Although the addition amount of the processing aid, but the processing performance is improved PVC is very important. Although domestic product has certain geographic and price advantage in the market competition, but compared with foreign products have a certain gap in our product performance, variety, stability, etc., which is our product formulation, processing technology (such as automation control and continuity of production control), processing equipment, and related post-processing technology behind. To this end a number of enterprises in the industry is fully aware of these problems, have established partnerships with research institutions, the establishment of research institutions to carry out research on plastic additives.

2014年9月24日星期三

Introduction and role of the principle of processing aid

PVC is a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. Such as: lubricants, heat stabilizers, impact modifiers, processing aids and the like. Processing aids in the development and application process, according to the product ingredients be plastic processing aid  into the following broad categories: methyl methacrylate acrylate copolymer, styrene copolymer, acrylonitrile styrene, at present use the largest, the best is acrylate copolymer. The main role of processing aids are: to accelerate the process of PVC plastics. Improve the rheological properties of thermoplastic melt. Improve the mechanical properties of melt under the heat elastic state. Integrated functions such as improving the appearance of Processing aid  products. Although the addition amount of the processing aid, but the processing performance is improved PVC is very important. Role of the principle of processing aids: PVC melt due to poor ductility, easily lead to melt broken; PVC melt relaxation slow, easily lead to the product surface rough, dull and shark skin and so on. Therefore, it often requires the addition of PVC processing when processing aids to improve its melt these defects. Processing aids to improve the performance of resin processing aids, and its main role in three ways: to promote the molten resin to improve the rheological properties of melt and give the lubrication function.

2014年9月18日星期四

Introduction and main role of plastic processing aid

plastic processing aid is a substance play a supporting role, generally have a filter aid, clarification, adsorption, lubrication, stripping, bleaching, peeling, solvent extraction, fermentation with nutrients like. Some for food, some used in manufacturing, and so on. PVC Processing aid  a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. plastic processing aid according to the different Processing aid  weight, there are different functions. The main role of plastic processing aid are: to accelerate the process of PVC plastics; improve the rheological properties of the thermoplastic melt; improve the mechanical properties of the melt under the heat elastic state; despite add less plastic processing aid, but to improve the processing performance but PVC is very important. Pure PVC impact due to poor performance, particularly low-temperature impact performance is poor, poor weather, the application is limited in many areas. Therefore, the need to improve the impact modifier added to its toughness and weatherability.

2014年9月12日星期五

PVC processing aid Introduction

PVC is a very special thermoplastic resin processing its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the Processing aid to improve its performance. With the rapid growth of PVC products, PVC processing aid has been widely used. The main role of PVC processing aid are: to accelerate the process of PVC plastics. Improve the rheological properties of thermoplastic melt. Improve the mechanical properties of melt under the heat elastic state. Integrated functions such as improving the appearance of quality plastic processing aid . Although the addition of a small amount of the PVC processing aid, but the performance is to improve the processing of PVC is very important due to the difference between the pure PVC impact properties, in particular poor low temperature impact properties, weather resistance is poor, the application is limited in many areas. Therefore, the need to improve the impact modifier added to its toughness and weatherability.

2014年8月26日星期二

WSD plastic processing aid Introduction

  Processing aid  is a substance play a supporting role, typically having filter aid, clarification, adsorption, lubrication, stripping, bleaching, peeling, extraction solvent, with a fermentation nutrient and the like. Some for food, some used in manufacturing, and so on. PVC is a very special thermoplastic resin plastic processing aid  its pure decomposition, poor mobility, low impact strength, poor weather, and therefore need to add all kinds of supplementary material in the process to improve its performance. Lubricants, heat stabilizers, impact modifiers, processing aids and the like. Depending on the processing aid molecular weight, there are different functions.
  The main role of processing aids are: 1) to accelerate the Processing aid  of PVC plastics. 2) improve the rheological properties of the thermoplastic melt. 3) improve the mechanical properties of the melt under the heat elastic state. 4) improve the appearance of the quality of the products and other integrated functions. Although the addition amount of the processing aid, but the Processing aid  performance is improved PVC is very important. According to the function of the different processing aids can be divided into flux, melt rheology modifiers, lubricants and dispersing accelerator. In fact, each type of processing aids also have more than one effect. Any functionality and application results of a processing aid should depend on its chemical composition, the polymer structure, molecular weight and type of polymer matrix.


2014年8月1日星期五

WSD plastic processing aid,PVC processing aid, processing aid: The practical application of PVC processing aid

WSD plastic processing aid,PVC processing aid, processing aid: The practical application of PVC processing aid: PVC processing aid  with flame retardant ,  chemical resistance  ( resistance to  high concentrated hydrochloric acid ,  sulfuric acid  conc...

The practical application of PVC processing aid

PVC processing aid with flame retardant, chemical resistance (resistance to highconcentrated hydrochloric acid, sulfuric acid concentration, concentration of nitric acidand the concentration of sodium hydroxide), PVC processing aid machinery has the advantages of good strength and electric insulation. Impact modifier, poor thermalstability. Impact modifier in the case of no heating stabilizer, PVC processing aid thatbegins to decompose, the faster decomposition. PVC processing aid of thermal decomposition of a release of hydrogen chloride gas, make its color from white to pale yellow, red, brown, black, impact modifier and oxygen will make the PVC photo oxidative decomposition, so that the flexible PVC last fall, crisp. PVC processing aidfrom here is not difficult to understand, why some PVC plastic over time will turn yellow, brittle. heat stabilizer for pipe Word sense disambiguation plastics processing aids discrimination hasstable physical and chemical properties, insoluble in water, ethanol, gasoline additivesprocessing aids, gas, water vapor permeability and low processing aids; calcium zinc stabilizer at room temperature for any concentration of hydrochloric acid, sulfuric acid,the PVC processing aid under chemical corrosion resistance, has a certain; for salt is quite stable, but can be dissolved in ether, ketone, chlorinated aliphatic hydrocarbons and aromatic hydrocarbons and other organic solvents.