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The selection of polyethylene
by：CSSSLD
2021-02-03
LDPE tube good flexibility, widely used in agricultural irrigation.
In addition, LDPE excellent electric properties and crosslinking ability, make it appeared at the beginning of the became the production of wire and cable materials.
Because there are new varieties, PE family constantly being used LDPE in various aspects in recent years, other varieties of strong competition, on the performance and economic attraction is waning.
For example, under the same density of paint film made from LLDPE film than LDPE film has higher strength, on the premise of not reduce the strength of injection molding products processing, to reduce costs by reducing thin film thickness.
in the choice of PE should consider when forming performance, and want to consider the use of performance of products. Extrusion molding should choose low MFR PE, is conducive to finalize the design and improve mechanical properties of the product, the injection molding should choose higher MFR PE, is advantageous to the melt flow, easy to fill. LDPE is available as a PE family varieties, have qualitative light, good transparency, cold-resistant, flexibility, high frequency by excellent insulation, easy processing and other excellent properties, is one of the most widely used varieties of plastic materials.
LDPE with a variety of substrate composition, such as paper, fabric, film, foil, etc. Surface of substrate to provide mechanical strength and printing, LDPE provides moisture and effective barrier property, such as gas, oil, for a total of extrusion coating LDPE main sealing heat and the effect of bonding layer, LDPE coating material can be used for milk aseptic packaging, food packaging and floppy disks industrial products such as packaging. LDPE injection molding is mainly used for producing such as products, containers, toys, and other small commodities.
various grades of LDPE can satisfy most thermoplastic plastic molding processing requirements, blown film, squeeze can be coated, coated wire and cable, injection molding and blow molding, etc. Thin film is one of the largest application field of LDPE, the main advantage is that the optical performance is good, good chemical stability, flexibility, cold resistant, easy to sealing, non-toxic, tasteless, etc. Production of single or compound of LDPE film was about 55% of the total consumption of LDPE, in agriculture, packaging, construction, and has an important position in daily life.
used in the production of thin film of LDPE MFR in 0. 3 - Within the scope of 8 g / 10 min. MRF is reduced, thin film has high tensile strength and toughness, but reduce transparency, molding temperature is higher. MFR, on the contrary. Production force larger heavy bags, garbage bags, therefore, should choose MFR < 1 g / 10 min LDPE, general production film can choose MFR LDPE for around 2 g / 10 min, and the MFR of the agricultural greenhouse film is about 0. 5 g / 10 min, in order to improve the strength of the film, is lower than the destruction of the environment.
industrial density as a measure of its structure, in terms of melt flow rate of its average relative molecular mass. The two measures decided the final performance of PE products, and choose the important basis of PE. Increasing MFR and the relative molecular mass of the PE, melt viscosity, good fluidity, low processing temperature, easy to shape, but the poor mechanical properties products, whereas the opposite situation.
use of film and film also have adverse effects on soil and environment, to achieve the unity of the environmental protection and application, optical and biological degradation of LDPE film is under development and research, some have come into the actual production. The performance characteristics of LDPE makes it very suitable for injection processing plant varieties of plastic extrusion coating, one of the commonly used MFR > varieties of 4 g / 10 min. Extrusion coating from a crack head out molten material in the form of connection melt film coated on mobile coating material is formed on the substrate.
more excellent articles: mechanical properties of PE, click directly.
http://www。 csssld。 cn//html/2017/Info_0920/679。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
in the choice of PE should consider when forming performance, and want to consider the use of performance of products. Extrusion molding should choose low MFR PE, is conducive to finalize the design and improve mechanical properties of the product, the injection molding should choose higher MFR PE, is advantageous to the melt flow, easy to fill. LDPE is available as a PE family varieties, have qualitative light, good transparency, cold-resistant, flexibility, high frequency by excellent insulation, easy processing and other excellent properties, is one of the most widely used varieties of plastic materials.
LDPE with a variety of substrate composition, such as paper, fabric, film, foil, etc. Surface of substrate to provide mechanical strength and printing, LDPE provides moisture and effective barrier property, such as gas, oil, for a total of extrusion coating LDPE main sealing heat and the effect of bonding layer, LDPE coating material can be used for milk aseptic packaging, food packaging and floppy disks industrial products such as packaging. LDPE injection molding is mainly used for producing such as products, containers, toys, and other small commodities.
various grades of LDPE can satisfy most thermoplastic plastic molding processing requirements, blown film, squeeze can be coated, coated wire and cable, injection molding and blow molding, etc. Thin film is one of the largest application field of LDPE, the main advantage is that the optical performance is good, good chemical stability, flexibility, cold resistant, easy to sealing, non-toxic, tasteless, etc. Production of single or compound of LDPE film was about 55% of the total consumption of LDPE, in agriculture, packaging, construction, and has an important position in daily life.
used in the production of thin film of LDPE MFR in 0. 3 - Within the scope of 8 g / 10 min. MRF is reduced, thin film has high tensile strength and toughness, but reduce transparency, molding temperature is higher. MFR, on the contrary. Production force larger heavy bags, garbage bags, therefore, should choose MFR < 1 g / 10 min LDPE, general production film can choose MFR LDPE for around 2 g / 10 min, and the MFR of the agricultural greenhouse film is about 0. 5 g / 10 min, in order to improve the strength of the film, is lower than the destruction of the environment.
industrial density as a measure of its structure, in terms of melt flow rate of its average relative molecular mass. The two measures decided the final performance of PE products, and choose the important basis of PE. Increasing MFR and the relative molecular mass of the PE, melt viscosity, good fluidity, low processing temperature, easy to shape, but the poor mechanical properties products, whereas the opposite situation.
use of film and film also have adverse effects on soil and environment, to achieve the unity of the environmental protection and application, optical and biological degradation of LDPE film is under development and research, some have come into the actual production. The performance characteristics of LDPE makes it very suitable for injection processing plant varieties of plastic extrusion coating, one of the commonly used MFR > varieties of 4 g / 10 min. Extrusion coating from a crack head out molten material in the form of connection melt film coated on mobile coating material is formed on the substrate.
more excellent articles: mechanical properties of PE, click directly.
http://www。 csssld。 cn//html/2017/Info_0920/679。 HTML
changshu smoothly da plastic products factory website: http://www. csssld。 Cn /
more wonderful articles, immediately search: changshu da plastic products factory smoothly
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