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

Modified polyformaldehyde/ thermoplastic polyaminoester elastomer blend and its preparation method and uses

A thermoplastic polyester blending modification technology, which is applied in the field of polyoxymethylene/thermoplastic polyester elastomer blend modification and its preparation, can solve the problems of low strength of the blend, achieve low molding shrinkage, and manufacture The effect of low cost and convenient operation

Inactive Publication Date: 2005-12-28
SICHUAN UNIV +1
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adding more thermoplastic polyurethane elastomers and amorphous thermoplastic polymers to polyoxymethylene will result in lower blend strength

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] 1. Mix 100kg of polyoxymethylene, 2.0kg of thermoplastic polyester elastomer, 0.8kg of polyoxymethylene and 0.8kg of calcium stearate with a high-speed mixer and then granulate with a twin-screw extruder. The section temperatures are 175°C, 185°C, 193°C, 193°C respectively, and the head temperature is 193°C.

[0025] 2. Mix 100kg of polyoxymethylene, 1.0kg of thermoplastic polyester elastomer, 0.5kg of homopolyoxymethylene and 1.2kg of ethylene bisoleic acid amide with a high-speed mixer and then granulate with a twin-screw extruder. The temperature of each section of the machine is 180°C, 190°C, 190°C, 190°C, and the head temperature is 190°C.

[0026] 3. Mix 100kg of polyoxymethylene, 5kg of thermoplastic polyester elastomer, polyamide-120.5kg and 0.5kg of ethylene bisstearamide, and use a high-speed mixer to mix them uniformly and then granulate them with a twin-screw extruder. The section temperatures are 178°C, 185°C, 195°C, 195°C respectively, and the head temper...

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

No PUM Login to View More

Abstract

The invention discloses a polyoxymethylene / thermoplastic polyester elastomer blend modified product, a preparation method and application thereof. Its characteristic is that the formula components of the blended modified product are calculated by weight, including 100 parts of polyoxymethylene, 0.5-5 parts of thermoplastic polyester elastomer, 0.5-1.5 parts of nucleating agent and 0.5-1.5 parts of lubricant. After mixing evenly in the mixer, use a twin-screw extruder to granulate. The temperature of each section of the extruder is 170-185°C, 180-195°C, 180-195°C, 180-195°C, and the head temperature is 185-195°C. . The prepared blended modified product has high impact strength, low molding shrinkage and good processing rheological properties, and is suitable for manufacturing automobiles, motorcycles, electronic appliances, household appliances and daily life fields.

Description

1. Technical field [0001] The invention relates to a polyoxymethylene / thermoplastic polyester elastomer blend modification and its preparation method and application, belonging to the field of polymer processing. 2. Background technology [0002] Polyoxymethylene is an engineering plastic with excellent comprehensive properties. Since the first industrialization of DuPont in the United States in 1959, polyoxymethylene has been cheap and easy to obtain with its raw materials, and it is easy to process and shape, especially its unique mechanical properties, oil resistance, and Chemical properties, low water absorption, and good thermal and electrical properties are used to replace non-ferrous metals and alloys. They are widely used in industries such as automobiles, electronic appliances, precision machinery, and hardware and building materials. They are used as bearings, gears, automotive instrument parts, Pump impeller and other parts. At present, in the entire engineering ...

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 Patents(China)
IPC IPC(8): C08L59/02
Inventor 刘鹏波徐闻范萍罗利琴
Owner SICHUAN UNIV