Unlock instant, AI-driven research and patent intelligence for your innovation.

Alcoholysis-resistant nylon material applied to automobile cooling system and preparation method thereof

An automobile cooling and alcoholysis-resistant technology, which is applied in the field of alcoholysis-resistant nylon materials in automobile cooling systems and its preparation, can solve the problems of reduced mechanical properties of composite materials, interface damage, and restrictions on the application of nylon materials, and achieves increased interface bonding strength, improved alcoholysis resistance, and excellent alcoholysis resistance

Inactive Publication Date: 2018-09-28
ZHEJIANG PRET NEW MATERIALS +4
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Nylon materials have excellent mechanical properties, thermal properties, chemical resistance and other excellent properties, but nylon has amide groups, and amide bonds are prone to hydrolysis or alcoholysis reactions in water and alcohol environments, which limits the use of nylon materials in some special environments. application in
Glass fiber has relatively high strength, chemical resistance, thermal stability, and electrical insulation. It can be used as a reinforcing material in modified plastics to increase the mechanical properties, thermal properties, and chemical resistance of plastics. Glass fiber in nylon The application of modification can increase the mechanical properties, chemical resistance and other properties of nylon materials, and endow nylon materials with more excellent properties to meet the application in some special environments, but because the interface bonding force between glass fiber and nylon mainly depends on The reaction and physical adsorption of the polar molecules of the silane coupling agent on the surface of the glass fiber and the terminal functional groups of the nylon increases the interfacial bonding force between the two, but the interfacial bonding force of the glass fiber and nylon materials mainly used in the market is weak, and in some In a special environment, such as the environment of ethylene glycol, the interface is relatively easy to be damaged by ethylene glycol at high temperature, thereby reducing the mechanical properties of the composite material

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Alcoholysis-resistant nylon material applied to automobile cooling system and preparation method thereof
  • Alcoholysis-resistant nylon material applied to automobile cooling system and preparation method thereof
  • Alcoholysis-resistant nylon material applied to automobile cooling system and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Weigh 3.425kg of PA66, bake at 100°C for 4 hours, mix 25g of alcoholysis-resistant additive, 25g of antioxidant, and 25g of lubricant in a high-speed mixer to obtain a resin mixture, which is set aside;

[0036] Weigh and take alcoholysis-resistant glass fiber 301HP(E) 1.5kg, set aside.

[0037] The above resin mixture is added to the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feed port, and the alcoholysis-resistant glass fiber is added to the twin-screw extruder through the side feed port. extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 220°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder rotates at 360r / min, and the strips are cooled in a water tank, dried with a blast desiccant, and pelletized by a pelletizer to obtain the product.

[0038] The above materials were dried at 120° C. for 4 hours in a ...

Embodiment 2

[0040] Weigh 3.175kg of PA66, bake it at 100°C for 4 hours, mix 25g of alcoholysis-resistant additive, 25g of antioxidant, and 25g of lubricant in a high-speed mixer to obtain a resin mixture, which is set aside;

[0041] Weigh and take alcoholysis-resistant glass fiber 301HP(E) 1.75kg, set aside.

[0042] The above resin mixture is added to the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feed port, and the alcoholysis-resistant glass fiber is added to the twin-screw extruder through the side feed port. extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 220°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder rotates at 360r / min, and the strips are cooled in a water tank, dried with a blast desiccant, and pelletized by a pelletizer to obtain the product.

[0043] The above materials were dried at 120° C. for 4 hours i...

Embodiment 3

[0045] Weigh 3.425kg of PA6, bake it at 100°C for 4 hours, mix 25g of alcoholysis-resistant additive, 25g of antioxidant, and 25g of lubricant in a high-speed mixer to obtain a resin mixture and set aside;

[0046] Weigh and take alcoholysis-resistant glass fiber 301HP(E) 1.5kg, set aside.

[0047] The above resin mixture is added to the twin-screw extruder (the screw diameter is 35mm, and the length-to-diameter ratio is L / D=36) through the main feed port, and the alcoholysis-resistant glass fiber is added to the twin-screw extruder through the side feed port. extruder, twin-screw extruder each section control temperature (from feeding port to head outlet) is 220°C, 240°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C, 265°C ℃, 265℃, the twin-screw extruder rotates at 360r / min, and the strips are cooled in a water tank, dried with a blast desiccant, and pelletized by a pelletizer to obtain the product.

[0048] The above materials were dried at 120° C. for 4 hours in a forc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses an alcoholysis-resistant nylon material applied to an automobile cooling system and a preparation method thereof. The alcoholysis-resistant nylon material comprises the following raw materials (by weight): 47-90% of nylon, 10-50% of alcoholysis-resistant glass fibre, 0.5-2% of an alcoholysis-resistant additive, and 0-1% of a lubricant and an anti-oxidant. In comparison withthe prior art, the invention has the following advantages: multiple active functional groups carried by a copolymer of ethene and maleic anhydride respectively react with active functional groups onthe surface of glass fiber and terminal functional groups of a nylon molecular chain, and then the interface bonding force of nylon and glass fiber is increased, and alcoholysis resistance of the composite material is effectively raised.

Description

technical field [0001] The invention relates to the application of nylon materials in automobile cooling systems and water chambers. By designing from the perspective of product formula, the composite material is endowed with excellent mechanical properties, dimensional stability and alcoholysis resistance, so as to meet its application in automobile water chambers and water chambers. The performance requirements of the cooling system for nylon materials. Background technique [0002] With the rapid development of the automobile industry, the lightweight of automobiles and the replacement of steel with plastics have become the development direction of automobile materials. More and more automobile parts use plastics instead of metals. The car water chamber is composed of three parts: the radiator core, the water inlet chamber and the water outlet chamber. The air flows outside the radiator core, and the coolant flows inside the radiator core. The hot coolant cools down by di...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L23/08C08L83/04C08L77/00C08K7/14
CPCC08L77/02C08L77/06C08L2205/035C08L23/0869C08L83/04C08L77/00C08K7/14
Inventor 张海生颜瑞祥蔡青陈永东周文
Owner ZHEJIANG PRET NEW MATERIALS