Nano samarium oxide MC nylon and modification method thereof
A nanometer samarium oxide, modified technology, applied in the field of plastics, can solve problems such as tensile strength, stiffness and other related properties decline, toughness deterioration, etc., to overcome product quality problems, good anti-slip performance, good toughness effect.
Inactive Publication Date: 2017-01-25
李芳
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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
Comparison scheme
Effect test
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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The invention relates to nano samarium oxide MC nylon and a modification method thereof, and belongs to the technical field of plastic. The nano samarium oxide MC nylon is prepared from 100 weight parts of caprolactam serving as a master batch, 0.5 to 1.0 weight part of nano samarium oxide, 0.12 to 0.2 weight part of sodium hydroxide serving as an accelerant, 0.3 to 0.7 liters of a solidifier TDI, 2 to 3 weight parts of molybdenum disulfide serving as a solid lubricating agent, 0.5 to 0.8 weight part of graphite and 0.3 to 0.5 weight part of boron nitride. The modification method specifically comprises the following production steps: die heating, solidifying molding, internal stress treatment and machining. The product disclosed by the invention can better transmit external stress on the product, also induce matrix yielding and consume a lot of impact energy, so that the effect of improving the toughness and the intensity of the product is achieved; a process of the product adopts a centrifugal pouring technology, so that internal air pores of the product are eliminated, and the quality problem of the product due to the defects such as the internal air pores and inclusions of a steel casting sliding block is solved.
Description
technical field [0001] The invention relates to nano samarium oxide MC nylon and a modification method thereof. 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, inorganic particle filling, copolymerization with other polymers, addition of org...
Claims
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IPC IPC(8): C08G69/14C08G69/16C08K13/02C08K3/22C08K5/29C08K3/30C08K3/04C08K3/38B29C39/08B29C39/42B29C39/38
Inventor 不公告发明人
Owner 李芳