An interpretation of the melting point data has been proposed for polyethylene crystals by taking into account the dependency of the equilibrium melting temperature on molecular length and the effect of the surface energy of the crystal. A particular attention has been paid to the effect the ...
A method for producing a method for producing a polyethylene resin foamed particles, and a resin mold foam molded polyethylene the melting point of the polyethylene resin particles is less than 105 ℃ and 125 deg.] C, and the frequency of its tanδ in viscoelasticity measuremen... 早瀬勇贵...
The influence of highly compressed gases on the melting of polyethylene was investigated for nitrogen, helium and ethylene. The impact of the particle size of the polymer and the heating rate on the melting point were also analysed. The melting points were determined with a high pressure different...
We have examined the influence which sample geometry has on the melting point of isothermally melt crystallized polyethylene. The peak positions of curves obtained using a Perkin-Elmer DSC were used as the apparent melting points (Tm). With a constant sample weight (ca. 0.05 mg), we observed ...
18.The low melting point of polyethylene allows for closure of pores and reduction of flow through them at elevated temperatures. 此聚合物的低融点性可以在更高的温度下关闭毛孔并减少流量。 19.Low melting point with good flowing property.
PE (Polyethylene) is easy to operate on and cheap, but it has a verylowmelting pointandare prone to physical damage. ja-harmonic.com ja-harmonic.com 然而考慮到它們的物理構造卻是十分重要;例如,發燒線材很多時會使用PE(Polyethylene, 聚乙烯),雖然容易加工並且便宜,但它有著很低的熔點並且容易受損。
Melting point and softening point are the thermal parameters most frequently used to assess the quality of different types of polymers. Thermoplastic polymers such as polyethylene (PE), for example, must be tested to determine the recommended melting temperature for injection molding. ...
The melting point of copper is not so high as that of iron. 铜的熔点不如铁高。 Perhaps the outer part of the moon was heated to the melting point by intense meteoric bombardment. 也许月球外层曾被流星体猛烈的撞击而加热到熔点。 The low melting point of polyethylene allows for closure of po...
New equilibrium melting point data, for polyethylene containing chain defects, are tested in the light of random copolymer predictions. A simplified expression for the melting point depression of random copolymers containing small amounts of non-crystallizable units is derived. Non-equilibrium melting da...
PURPOSE: To largely improve the melting point of polycaprolactone by mixing the polycaprolactone with a thermoplastic polymer and subsequently drawing the mixture. ;CONSTITUTION: Polycaprolactone, a polymer having monomer units of the formula, is mixed with a thermoplastic polymer, preferably a hydrolyzable...