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Poly putty specially used for multiple unit train as well as preparation method and application thereof

A technology for atomic ash and EMUs, applied in the direction of filling slurry, etc., can solve the problems of increasing train operation and maintenance costs, increasing surface cracking and falling off, hidden dangers, etc., achieving stable and controllable curing reaction, shortening of ash adjustment time, The effect of improving construction efficiency

Active Publication Date: 2018-01-30
河北新盾合成材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the train using the patent CN104177901A atomic ash is running under such a large temperature difference, the probability of cracking and falling off on the surface will increase significantly, so that the surface of the body needs to be repaired continuously, which greatly increases the cost of train operation and maintenance. Falling off during high-speed operation will also bring certain safety hazards

Method used

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  • Poly putty specially used for multiple unit train as well as preparation method and application thereof
  • Poly putty specially used for multiple unit train as well as preparation method and application thereof

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preparation example Construction

[0035] The preparation method of the most preferred composite auxiliary agent is: in parts by weight, 18 parts of TBC, 9 parts of 1,4-naphthoquinone, 37 parts of antioxidant 264, 12 parts of copper naphthenate, 24 parts Add one part of methyl ethyl ketone oxime into a mixing tank with stirring, start the stirring at a speed of 60-70 rpm, and stir at the current ambient temperature for 0.5-1 hour to form a uniform liquid substance.

[0036] The curing agent is cyclohexanone peroxide or methyl ethyl ketone peroxide.

[0037] The preparation step of described main ash comprises:

[0038] A. Preparation of compound additives

[0039] Weigh TBC, 1,4-naphthoquinone, antioxidant 264, copper naphthenate and methyl ethyl ketone oxime in proportion, add them to a mixing kettle with stirring, start stirring at 60-70 rpm, and stir at room temperature 0.5 to 1 hour to make it form a uniform liquid substance, that is, a compound additive;

[0040] B. Preparation of main ash

[0041] At ...

Embodiment 1

[0064]A kind of putty specially used for motor trains, including main ash and curing agent. The curing agent is cyclohexanone peroxide; the main ash includes: 4000g of unsaturated polyester resin, 70g of cobalt isooctanoate with a weight fraction of 8%, 300g of styrene, 40g of composite additives, and 600g of fumed silica , Titanium dioxide 800g, 325 mesh talc powder 2800g, 600 mesh talcum powder 1300g. Among them, the composite additive is composed of TBC, 1,4-naphthoquinone, antioxidant 264, copper naphthenate, and methyl ethyl ketone oxime.

[0065] The preparation process of described unsaturated polyester resin is:

[0066] Weigh 650g of diethylene glycol, 400g of ethylene glycol, 350g of neopentyl glycol, 700g of tetrahydrophthalic anhydride, and 200g of adipic acid into the reaction kettle, raise the temperature to 200°C, and keep it warm for 3.5 hours. The acid value is 60mgKOH / g Afterwards, cool down to 180°C, add 900g of maleic anhydride, raise the temperature to 2...

Embodiment 2

[0074] A kind of putty specially used for motor trains, including main ash and curing agent. The curing agent is cyclohexanone peroxide; the main ash includes: 4000g of unsaturated polyester resin, 70g of cobalt isooctanoate with a weight fraction of 8%, 500g of styrene, 50g of composite additives, and 700g of fumed silica , Titanium dioxide 800g, 325 mesh talc powder 2900g, 600 mesh talcum powder 1200g. Among them, the composite additive is composed of TBC, 1,4-naphthoquinone, antioxidant 264, copper naphthenate, and methyl ethyl ketone oxime.

[0075] The preparation process of described unsaturated polyester resin is:

[0076] Weigh 650g of diethylene glycol, 400g of ethylene glycol, 350g of neopentyl glycol, 700g of tetrahydrophthalic anhydride, and 200g of adipic acid into the reaction kettle, raise the temperature to 200°C, and keep it warm for 3.5 hours. The acid value is 58mgKOH / g Afterwards, cool down to 180°C, add 900g of maleic anhydride, raise the temperature to ...

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Abstract

The invention discloses poly putty specially used for a multiple unit train. The poly putty comprises main putty and a curing agent, wherein the main putty comprises the following components in partsby weight: 38-42 parts of unsaturated polyester resin, 0.7-0.8 part of cobalt isooctanoate with a weight fraction of 8%, 2-5 parts of styrene, 0.2-0.5 part of a composite auxiliary agent, 5-8 parts offumed silica, 5-10 parts of titanium dioxide, 25-30 parts of talcum powder with 325 meshes, and 8-15 parts of talcum powder with 600 meshes; and the composite auxiliary agent is composed of TBC, 1,4-naphthoquinone, antioxidant 264, copper naphthenate, and methyl ethyl ketoxime. The poly putty provided by the invention has the characteristics of high flexibility, high bendability, high impact resistance and very good temperature variation resistance, and the poly putty can withstand long-term high-low temperature change, is not easy to crack or fall, and fully meets the long-term operating requirements of the multiple unit train in areas with a high temperature difference.

Description

technical field [0001] The invention relates to a special atomic ash for multiple trains, belonging to the technical field of embedded filling materials. Background technique [0002] Atomic ash, commonly known as putty, is composed of main ash and curing agent. It is a new type of embedded filling material that is convenient and quick to use. It is widely used in various metal products that need to be filled and repaired, such as train manufacturing, ship manufacturing, and automobile manufacturing. Effective filling and modification of material pits, pin shrinkage cavities, cracks, welds and other defects, to meet the leveling and smoothing of the surface of the substrate before topcoating. [0003] With the continuous development of my country's railway industry, the speed of railway transportation has been continuously realized, making EMU trains the mainstream of current railway trains. The speed of EMU trains is usually 200-250km per hour, which is 2 to 3 times that o...

Claims

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Application Information

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IPC IPC(8): C09D5/34C08G63/676
Inventor 李海涛李树朝田广辉
Owner 河北新盾合成材料有限公司
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