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Rare earth modified toughening nylon material and its preparation method

A rare earth modification and nylon technology is applied in the field of rare earth modified and toughened nylon materials and its preparation, which can solve the problems of tensile strength decrease, strength and rigidity loss, etc., and achieve the effect of improving impact strength

Active Publication Date: 2015-07-15
DONGFENG SHIYAN AUTOMOBILE HEAT EXCHANGER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] ABS resin contains rubber phase butadiene components. By adjusting the content of butadiene in the ABS material, the ABS material can have excellent toughness index. Blending ABS and nylon can greatly improve the toughness of nylon material, but as the ABS in the system With the increase of content, the tensile strength of the blend system decreased obviously. At this time, the improvement of material toughness is at the cost of loss of strength and rigidity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] .

Embodiment 2

[0020] .

Embodiment 3

[0022] .

[0023] The data in the above-mentioned Examples 1, 2 and 3 are obtained by testing standard samples after equilibrating for 3-4 days at room temperature of 23° C. and 50% RH. Among them, nylon 6 resin is a common variety in the domestic market, such as Honeywell 8209 and 8202 of Honeywell Company or Xinhui Meida M2600 of Guangdong Xinhui Meida Nylon Co., Ltd.; the relative density of ABS resin is 1.03-1. 04. Tensile strength 31.3 MPa, IZOD impact strength 39kJ / m 2 For example, Zhenjiang Chimei PA749K of Zhenjiang Chimei Co., Ltd.; maleic anhydride grafted ABS resin requires a graft rate of more than 10%, and a melt index (220°C, 10kg) of 3.7g / 10min; rare earth oxides are commercially available products of ordinary grade , such as lanthanum oxide, cerium oxide, and yttrium oxide with a purity greater than 99.9%; anti-aging additives are antioxidants, light stabilizers, etc. commonly used in plastics, and these additives can be added selectively based on applicatio...

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PUM

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Abstract

A rare earth modified toughening nylon material is composed of: by weight, 60%-80% of nylon 6, 0%-30% of ABS resin, 5%-20% of maleic anhydride grafting ABS, 0.5%-2% of rare earth oxide and 0.5%-1% of an anti-aging liquid auxiliary agent. In comparison with present nylon 6, shock strength of the rare earth modified toughening nylon material is raised by more than 20% on the basis of maintaining a certain stretching and bending strength.

Description

technical field [0001] The invention belongs to the field of polymer materials, and in particular relates to a rare earth modified toughened nylon material and a preparation method thereof. Background technique [0002] Polycaprolactam, also known as nylon 6, is an engineering plastic with excellent performance. Compared with other engineering plastics, nylon 6 has excellent properties such as high mechanical strength, self-lubrication, wear resistance, shock resistance, sound absorption, oil resistance, and good processing fluidity, but it is sensitive to notch impact, brittle, and resistant to crack propagation. The ability is poor, so that the scope of application is limited to a large extent. For this reason, it is necessary to carry out physical or chemical modification to obtain materials and products with better comprehensive properties. [0003] Due to their special electronic structure, rare earth elements have more empty orbitals and rich electronic energy levels...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L55/02C08L51/00C08K3/22C08K5/134C08K5/526B29C47/92B29C48/92
CPCB29C2947/92828B29C47/92B29C2947/92704B29C48/92B29C2948/92704B29C2948/92828
Inventor 杨丹陈谦文汉防李冬滨徐浩刘波
Owner DONGFENG SHIYAN AUTOMOBILE HEAT EXCHANGER