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

A kind of toughened modified phenolic foam for sports equipment and preparation method thereof

A phenolic foam, toughening and modification technology, applied in the field of phenolic foam, can solve the problems of poor oxidation resistance, poor mechanical properties, high brittleness and the like of phenolic foam, and achieve strong bonding force, improved strength, and improved toughness. Effect

Inactive Publication Date: 2018-05-01
HENAN UNIV OF SCI & TECH
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the tight packing of the rigid aromatic rings linked by methylene in the molecular structure of phenolic foam plastics, the phenolic hydroxyl group and methylene group are easily oxidized, which makes the phenolic foam plastic itself have poor oxidation resistance and poor mechanical properties, especially brittleness. Large and easy to pulverize, this defect greatly limits its application

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
  • A kind of toughened modified phenolic foam for sports equipment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A toughened modified phenolic foam plastic for sports equipment, which is prepared from the following raw materials in parts by weight: 40 parts of phenolic resin, 30 parts of modified phenolic resin, 1 part of silica micropowder, modified raw bamboo fiber 2 parts, 5 parts of n-pentane, 6 parts of surfactant, 18 parts of curing agent, 3 parts of phosphite antioxidant; Described surfactant is made of polyoxyethylene fatty acid ester, dodecylbenzenesulfonic acid Composed of sodium and ethanol; the modified phenolic resin is prepared by polymerization of the following raw materials in parts by weight: 100 parts of phenol, 85 parts of formaldehyde, 5 parts of oleic acid, 8 parts of oxalic acid, and 31% hydrochloric acid 2 servings.

[0025] The preparation method of the modified phenolic resin is as follows: the raw materials are added into the reaction vessel according to the proportion, heated in a water bath and stirred at a constant speed. When the pH value reaches 2, ...

Embodiment 2

[0037] A toughened modified phenolic foam plastic for sports equipment, which is prepared from the following raw materials in parts by weight: 35 parts of phenolic resin, 32 parts of modified phenolic resin, 1 part of silica micropowder, modified raw bamboo fiber 1 part, 3 parts of isopentane, 5 parts of surfactant, 18 parts of curing agent, 2 parts of phosphite antioxidant; The surfactant consists of polyoxyethylene fatty acid ester, dodecylbenzenesulfonic acid Composed of sodium and ethanol; the modified phenolic resin is prepared by polymerization of the following raw materials in parts by weight: 100 parts of phenol, 80 parts of formaldehyde, 3 parts of oleic acid, 8 parts of oxalic acid, and 31% hydrochloric acid 1.5 servings.

[0038] In this embodiment, the preparation methods of the modified phenolic resin, the modified original bamboo fiber, and the phenolic foamed plastic product are all the same as in Embodiment 1. The silica micropowder used and curing agent are a...

Embodiment 3

[0040] A toughened modified phenolic foam plastic for sports equipment, which is prepared from the following raw materials in parts by weight: 45 parts of phenolic resin, 32 parts of modified phenolic resin, 2 parts of silica micropowder, modified raw bamboo fiber 3 parts, 6 parts of normal hexane, 8 parts of surfactant, 20 parts of curing agent, 5 parts of phosphite antioxidant; Described surfactant is made of polyoxyethylene fatty acid ester, sodium dodecylbenzenesulfonate and ethanol; the modified phenolic resin is prepared by polymerization of the following raw materials in parts by weight: 100 parts of phenol, 90 parts of formaldehyde, 5 parts of oleic acid, 10 parts of oxalic acid, and 3 parts of hydrochloric acid with a mass concentration of 31%. share.

[0041] In this embodiment, the preparation methods of the modified phenolic resin, the modified original bamboo fiber, and the phenolic foamed plastic product are all the same as in Embodiment 1. The silica micropowde...

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
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides toughened modified phenolic foam plastic for sports equipment and relates to the field of phenolic foam plastic. The toughened modified phenolic foam plastic for the sports equipment is prepared from the following raw materials in parts by weight: 35 to 45 parts of phenolic resin, 26 to 32 parts of modified phenolic resin, 0.5 to 2 parts of silicon dioxide micropowder, 1 to 3 parts of modified original bamboo fiber, 3 to 6 parts of a foaming agent, 5 to 8 parts of a surfactant, 16 to 20 parts of a curing agent and 1 to 5 parts of an antioxidant, wherein the surfactant consists of polyoxyethylene aliphatate, sodium dodecyl benzene sulfonate and ethanol; the modified phenolic resin is prepared from the following raw materials in parts by weight through polymerization reaction: 100 parts of phenol, 80 to 90 parts of formaldehyde, 3 to 5 parts of oleic acid, 7 to 10 parts of oxalic acid and 1.5 to 3.5 parts of hydrochloric acid with the mass concentration being 31%. The toughened modified phenolic foam plastic product for the sports equipment, prepared through the method provided by the invention has high toughness, improves the problems that the phenolic foam plastic has high brittleness and residues are easy to fall, and guarantees that the product has excellent mechanical property and flame resistance.

Description

technical field [0001] The invention relates to the field of phenolic foam plastics, in particular to a toughened modified phenolic foam plastic for sports equipment and a preparation method thereof. Background technique [0002] Phenolic foam has low density, light weight, low thermal conductivity, wide temperature range and good dimensional stability. Compared with polyvinyl chloride foam, polyethylene foam, and polyurethane foam, phenolic foam has the advantages of excellent flame retardancy, self-extinguishing, low smoke, and resistance to flame penetration. Therefore, in recent years, phenolic foam has been widely used in construction, shipbuilding, aviation equipment, sports equipment and other fields. [0003] However, due to the tight packing of the rigid aromatic rings linked by methylene in the molecular structure of phenolic foam plastics, the phenolic hydroxyl group and methylene group are easily oxidized, which makes the phenolic foam plastic itself have poor o...

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): C08L61/06C08L61/14C08L97/02C08K13/06C08K9/06C08K3/36C08K5/524C08J9/14
CPCC08J9/141C08J2361/06C08J2461/14C08K2201/011C08L61/06C08L2201/02C08L2203/14C08L2205/03C08L61/14C08L97/02C08K13/06C08K9/06C08K3/36C08K5/524
Inventor 丁建华李春兰丁龙
Owner HENAN UNIV OF SCI & TECH