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Novel MC nylon and modification method thereof

A nylon and modification technology, applied in the production process of nano-samarium oxide modified MC nylon sliders, new MC nylon and its modification field, can solve the problems of tensile strength, stiffness and other related performance decline, toughness deterioration, etc. , to achieve the effect of overcoming product quality problems, good anti-skid performance, and good toughness

Inactive Publication Date: 2015-05-20
嵇春霞
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional modification methods are all at the expense of certain aspects of the material’s performance. When the impact toughness of the material is increased, its tensile strength, stiffness and other related properties decrease. When the tensile strength and stiffness of the material are increased, its Toughness gets worse

Method used

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Experimental program
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Embodiment Construction

[0012] The present invention will be further described below in conjunction with specific embodiment:

[0013] Take 100 parts by weight of masterbatch caprolactam, 0.5-1.0 parts by weight of nano-samarium oxide, 0.12-0.2 parts by weight of sodium hydroxide as an accelerator, 0.3-0.7 liters of curing agent TDI, and solid lubricants molybdenum disulfide, graphite and boron nitride respectively 2-3 parts by weight, 0.5-0.8 parts by weight, and 0.3-0.5 parts by weight. The specific production steps are as follows:

[0014] (Step 1) Heating the mould: evenly smear the release liquid on the bottom mold and the upper mold of the mold and heat them separately. Install the upper mold on the bottom mold and start pouring;

[0015] (Step 2) Feeding: Put 100 parts by weight of the masterbatch caprolactam into the melting kettle, connect the vacuum tube and measure the temperature, heat the melting kettle, and start vacuuming the melted caprolactam below 120°C. At this time, the pressure ...

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Abstract

The invention relates to a novel MC nylon and a modification method, especially relates to a production method of nanometer samarium oxide modified MC nylon slide blocks, and belongs to the technical field of plastics. The novel MC nylon comprises, by weight, 100 parts of a master batch caprolactam, 0.5-1.0 part of nanometer samarium oxide, 0.12-0.2 parts of an accelerant sodium hydroxide, 0.3-0.7L of a curing agent TDI, 2-3 parts of molybdenum disulfide, 0.5-0.8parts of graphite, and 0.3-0.5 parts of boron nitride, wherein molybdenum disulfide, graphite and boron nitride are used as a solid lubricant. The method concretely comprises the following steps: heating a die, adding materials to the die, carrying out curing molding, carrying out internal press treatment, and machining. The above product can well transmit born external stress, can initiate matrix yielding, and consumes a large amount of impact energy in order to obtain the toughness and the strength. A centrifuge casting technology adopted in the invention eliminates the internal pores of the product, and overcomes the product quality problem caused by internal pores, inclusion and other defects of the cast steel piece slide blocks.

Description

technical field [0001] The invention relates to a novel MC nylon and a modification method thereof, in particular to a production process of a nano-samarium oxide modified MC nylon slider. It belongs to the technical field of plastics. Background technique [0002] MC nylon is a new type of engineering plastic made of caprolactam as the main raw material through anionic polymerization under normal pressure. MC nylon is gradually replacing copper, aluminum, steel and other metal materials and is widely used in textile, rubber, petrochemical, steel rolling, mining machinery, automobile, elevator, crane and other industries. However, compared with metals, MC nylon also has disadvantages such as lower strength, modulus and heat distortion temperature, higher water absorption, and poorer dimensional stability. In recent years, research on modified MC nylon has been active at home and abroad. Common modification methods are mainly carbon fiber or glass fiber reinforcement, inor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G69/16C08L77/02C08K13/02C08K3/22C08K5/29C08K3/30C08K3/04C08K3/38B29C41/04B29C41/52
Inventor 不公告发明人
Owner 嵇春霞
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