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Nano composite material of polyester and inorganic silicate, and preparation method thereof

A nano-composite material and inorganic silicate technology, which is applied in the field of preparing polyester and inorganic silicate nano-composite materials, can solve the problems of strength reduction, increased cost, and unfavorable environmental protection, and achieve the effect of improving defects

Inactive Publication Date: 2008-05-28
TORAY FIBER RES INST(CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polyester inorganic silicate nanocomposites are prepared by solution intercalation polycondensation compounding method. Due to the use of solvent (usually DMF), the viscosity of the system is smaller, and the solvent has a certain swelling effect on inorganic silicate, which is beneficial to polymer intercalation. layer and peel off the silicate sheet, the preparation conditions are relatively mild, but the use of solvent not only increases the cost but also is unfavorable to environmental protection, and the obtained polyester inorganic silicate nanocomposite material has a small amount of solvent remaining, which reduces the strength

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 0.15 kg of montmorillonite treated with a coupling agent, 1.85 kg of polytrimethylene terephthalate (PTT), and 0.15 kg of 1,3-propane sultone are added together in a twin-screw extruder for melt extrusion , to obtain polytrimethylene terephthalate (PTT) layered silicate nanocomposite material, and then this composite material is vacuum-dried, after drying, take by weighing 1.33kg polytrimethylene terephthalate (PTT) layered silicon Acid salt nanocomposite material, then join together with the polybutylene terephthalate (PBT) of 0.67kg in the twin-screw extruder and carry out melt extruding again, obtain polytrimethylene terephthalate (PTT) / Polybutylene terephthalate (PBT) montmorillonite nanocomposites.

Embodiment 2

[0029] 0.15 kg of montmorillonite treated with a coupling agent, 1.85 kg of polybutylene terephthalate (PBT), and 0.15 kg of 1,3-propane sultone are added together into a twin-screw extruder for melting Extrude to obtain polybutylene terephthalate (PBT) layered silicate nano-composite material, then this composite material is vacuum-dried, after drying, take the polybutylene terephthalate of 1.33kg (PBT) layered silicate nano-composite material, then join the polytrimethylene terephthalate (PTT) of 0.67kg in the twin-screw extruder and carry out melt extrusion again, obtain polybutylene terephthalate Alcohol ester (PBT) / polytrimethylene terephthalate (PTT) montmorillonite nanocomposites.

Embodiment 3

[0031] 0.15 kg of montmorillonite treated with a coupling agent, 1.85 kg of polybutylene terephthalate (PBT), and 0.15 kg of 1,3-propane sultone are added together into a twin-screw extruder for melting Extrude to obtain polybutylene terephthalate (PBT) layered silicate nano-composite material, then this composite material is vacuum-dried, after drying, take the polybutylene terephthalate of 1.33kg (PBT) layered silicate nano-composite material, and then join the polyethylene terephthalate (PET) of 0.67kg in the twin-screw extruder and carry out melt extrusion again, obtain polyethylene terephthalate Butylene glycol ester (PBT) / polyethylene terephthalate (PET) montmorillonite nanocomposite.

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PUM

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Abstract

The invention discloses a nanometer composite material of polyester and inorganic silicate and process for preparation, which comprises polyester I, polyester II, inorganic silicate processed by coupler, and the like. The process for preparation is that the material is prepared by twice mixing, the polyester I is mixed with inorganic silicate processed by coupler, the obtained product can be mother material to mix polyester II and produces the product. The inorganic silicate of the inventive product is evenly dispersed at nanometer size and two polyesters can make up for each other's deficiencies and modify the defect of two components to neutralize the advantage of two components, which facilitates moulding and processing.

Description

Technical field: [0001] The invention relates to the technical field of resin processing and application, mainly for the preparation of nanocomposite materials of polyester and inorganic silicate. Background technique [0002] Polyethylene terephthalate (PET) is mainly used for fibers, bottles and films, and the amount of engineering plastics only accounts for a small part of its total output. As an engineering plastic, PET resin has very attractive properties, but its poor melt strength, slow crystallization speed, and poor dimensional stability make it difficult to meet the needs of rapid prototyping in industry. Major companies in the world have invested a lot of manpower and material resources to develop various rapid crystallization nucleating agents, thereby increasing the crystallization rate of PET. However, the large-scale application of PET engineering plastics is restricted due to the high price of these nucleating agents. The PET polymerization intercalation com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/03C08K3/34C08J3/20C08K5/54
Inventor 杨小青李旭本田圭介
Owner TORAY FIBER RES INST(CHINA) CO LTD