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Nano attapulgite clay composition for modified engineered plastic

A technology of nano-attapulgite and engineering plastics, applied in the field of nano-attapulgite clay composition of melt-modified engineering plastics

Inactive Publication Date: 2007-05-16
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the report of compounding nano-attapulgite clay into a composition for melting modified organic polymers (especially engineering plastics) has not yet been seen.

Method used

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  • Nano attapulgite clay composition for modified engineered plastic

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The raw materials and contents for preparing the nano-attapulgite clay composition are as follows, wherein the contents are in % by weight:

[0027] Nano Attapulgite Clay 50%

[0028] E-20 epoxy resin 20%

[0029] Polyethylene wax (melting point below 150°C) 20%

[0030] Polypropylene grafted maleic anhydride 10%

[0031] After mixing nano-attapulgite clay, E-20 epoxy resin and polyethylene wax with a melting point lower than 150 °C in the above ratio, add it to a double-roller mill with a surface temperature of 130 °C to 150 °C, and knead for 10 to 10 °C. After 15 minutes, the obtained block-flaky mixture was crushed and added to a twin-screw extruder together with polypropylene grafted maleic anhydride to extrude and granulate (the processing temperature was 150°C to 180°C) to obtain a nano-attapulgite clay combination thing. Its electron micrograph is shown in Figure 1.

Embodiment 2

[0033] The raw materials and contents for preparing the nano-attapulgite clay composition are as follows, wherein the contents are in % by weight:

[0034] Nano Attapulgite Clay 55%

[0035] E-20 epoxy resin 15%

[0036] Oxidized polyethylene wax (melting point below 150°C) 15%

[0037] Ethylene-vinyl acetate copolymer grafted maleic anhydride 15%

[0038] After mixing nano-attapulgite clay, E-20 epoxy resin and oxidized polyethylene wax with a melting point lower than 150°C in the above ratio, add it to a double-roll mill with a surface temperature of 130°C to 150°C, and knead for 10 After ~15 minutes, the obtained block-flaky mixture is crushed and added to a twin-screw extruder together with ethylene-vinyl acetate copolymer to extrude and granulate (processing temperature is 140°C-160°C) to obtain nano-attapulgite clay combination.

Embodiment 3

[0040] The raw materials and contents for preparing the nano-attapulgite clay composition are as follows, wherein the contents are in % by weight:

[0041] Nano Attapulgite Clay 50%

[0042] E-12 epoxy resin 30%

[0043] Oxidized polyethylene wax (melting point below 150°C) 10%

[0044] Polypropylene grafted maleic anhydride 10%

[0045] After mixing nano-attapulgite clay, E-12 epoxy resin and oxidized polyethylene wax with a melting point lower than 150°C in the above ratio, add it to a double-roll mill with a surface temperature of 130°C to 140°C, and knead for 10 After ~15 minutes, the obtained block-flaky mixture is crushed and added to a twin-screw extruder together with polypropylene grafted maleic anhydride to extrude and granulate (processing temperature is 150°C-180°C) to obtain nano-attapulgite clay combination.

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Abstract

The invention discloses a nanometer concave-convex bar clay composition of fused modified engineering plastic, which is characterized by the following: allocating the composition with 50-60% nanometer concave-convex bar clay, 15-20% epoxy radical compound, 15-20% low-fusing point adjuvant and 8-20% carrier resin as raw material; fusing together at 130-180 Deg C; solidifying; grinding to obtain the product; possessing excellent dispersing property and compatibility with modified engineering plastic.

Description

technical field [0001] The invention relates to a nano-attapulgite clay composition, in particular to a nano-attapulgite clay composition for melting modified engineering plastics. Background technique [0002] Nano-attapulgite clay is refined from attapulgite clay (also known as palygorskite or palygorskite), and its empirical molecular formula is: (Mg, Al, Fe) 5 Si 8 o 20 (HO) 2 (OH 2 ) 4 4H 2 O. [0003] Nano-attapulgite clay has the characteristics of large specific surface area, high surface activity, and polar hydroxyl groups on the surface, which indicates that it should have structural reinforcement and Potential for chemical binding potency. However, due to the poor affinity of nano-attapulgite clay itself with organic polymers (especially non-polar organic polymers), it is currently only used as an inert filler in rubber and plastic products, and its application is far from being exerted. Some effect. [0004] CN 1664004 reported that the attapulgite and ...

Claims

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Application Information

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IPC IPC(8): C08L63/02C08L67/03C08L23/12C08L53/02C08L77/02C08K3/00
Inventor 邵佳敏王海洋樊晓烨唐颂超
Owner EAST CHINA UNIV OF SCI & TECH
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