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

Wear-resistant benzoxazine resin and preparation method thereof

A benzoxazine resin, benzoxazine technology, applied in the field of thermosetting resins, can solve the problems of easy agglomeration, restricted application, difficult dispersion, etc., and achieves a small friction coefficient, excellent wear resistance, and good wear resistance modification. effect of effect

Inactive Publication Date: 2015-01-28
XIAMEN UNIV
View PDF8 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, nano-powders are easy to agglomerate and difficult to disperse in the resin matrix, which restricts the application of nano-material modified benzoxazine resin as a friction 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
  • Wear-resistant benzoxazine resin and preparation method thereof
  • Wear-resistant benzoxazine resin and preparation method thereof
  • Wear-resistant benzoxazine resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 0.05g of silane KH550, add it into 10g of acetone solvent, stir evenly, add 1g of potassium titanate whiskers, and mix evenly. Take 100 g of benzoxazine resin and add it to the aforementioned mixed solution, and stir evenly to obtain a potassium titanate whisker / benzoxazine resin modification system solution. Put this potassium titanate whisker / benzoxazine mixed solution in a vacuum oven, remove the solvent, and follow the curing process at 150°C / 1h+160°C / 1h+170°C / 1h+180°C / 2h+200°C / 2h A cast body is produced. Referring to GB 3960-1983 plastic sliding friction and wear test method, under the conditions of load 30kg and speed 200r / min, the friction coefficient is 0.51, and the wear rate is 0.63×10 -6 mm 3 / (N·m).

Embodiment 2

[0029] Take 0.2g of silane KH550, add it to 50g of acetone solvent, stir evenly, add 10g of potassium titanate whiskers, and mix evenly. Take 100 g of benzoxazine resin and add it to the aforementioned mixed solution, and stir evenly to obtain a potassium titanate whisker / benzoxazine resin modification system solution. Put this potassium titanate whisker / benzoxazine mixed solution in a vacuum oven, remove the solvent, and follow the curing process at 150°C / 1h+160°C / 1h+170°C / 1h+180°C / 2h+200°C / 2h A cast body is produced. Referring to GB 3960-1983 plastic sliding friction and wear test method, under the conditions of load 30kg and speed 200r / min, the friction coefficient is 0.23, and the wear rate is 0.34×10 -6 mm 3 / (N·m).

Embodiment 3

[0031] Take 0.15g of silane KH550, add it to 50g of acetone solvent, stir evenly, add 30g of potassium titanate whiskers, and mix evenly. Take 100 g of benzoxazine resin and add it to the aforementioned mixed solution, and stir evenly to obtain a potassium titanate whisker / benzoxazine resin modification system solution. Put this potassium titanate whisker / benzoxazine mixed solution in a vacuum oven, remove the solvent, and follow the curing process at 150°C / 1h+160°C / 1h+170°C / 1h+180°C / 2h+200°C / 2h A cast body is produced. Referring to GB 3960-1983 plastic sliding friction and wear test method, under the conditions of load 30kg and speed 200r / min, the friction coefficient is 0.35, and the wear rate is 0.53×10 -6 mm 3 / (N·m).

[0032] Under the conditions of load 40kg and rotational speed 200r / min, the benzoxazine resin matrix has obvious matrix cohesive damage, and wear failure occurs during the friction process, such as figure 1 . However, under the same friction conditions...

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
Wear rateaaaaaaaaaa
Wear rateaaaaaaaaaa
Wear rateaaaaaaaaaa
Login to View More

Abstract

A wear-resistant benzoxazine resin and a preparation method thereof relate to thermosetting resin. The wear-resistant benzoxazine resin consists of benzoxazine resin, potassium titanate whisker, a solvent and a silane coupling agent. The ratio by mass of the benzoxazine resin to the potassium titanate whisker to the solvent is 100: (1-30): (10-200). The silane coupling agent accounts for 0.5-5 percentages by mass of the potassium titanate whisker. The silane coupling agent is added into the solvent, the potassium titanate whisker is added, the benzoxazine resin is then added, and the wear-resistant benzoxazine resin is obtained. The wear-resistant benzoxazine resin can be applied in the preparation of fiber prepregs, wear-resistant paints, adhesives and the like. The wear-resistant benzoxazine resin has small modified system friction coefficient, excellent wear-resistant performance and excellent heat-resistant performance and has great application prospects in the friction and damage fields of brake materials, wear-resistant coatings and the like.

Description

technical field [0001] The invention relates to a thermosetting resin, in particular to a wear-resistant benzoxazine resin and a preparation method thereof. Background technique [0002] Friction and wear phenomena are ubiquitous in life, and the harm and industrial losses caused by material wear are immeasurable. Phenolic resin is widely used in the field of friction materials because of its low price and stable performance. However, with the improvement of working conditions and increasingly harsh conditions of use, phenolic resins can no longer fully meet the needs of use. [0003] Benzoxazine resin is a new type of thermosetting phenolic resin developed in recent years. Compared with traditional phenolic resin, benzoxazine resin does not emit small molecules during curing, its volume shrinkage is approximately zero, and its dimensional stability is good. At the same time, benzoxazine has excellent flame retardancy, high carbon residue rate and low water absorption rate...

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
IPC IPC(8): C08L79/04C08K9/06C08K7/08C08K3/24
CPCC08K9/06C08K7/08C08L79/04C08L2201/08
Inventor 胡晓兰羊宏山兰茜杨应来
Owner XIAMEN UNIV