Preparation method of bamboo club filled with polyurethane

A technology of polyurethane and polyurethane rigid foam, which is applied in the field of preparation of polyurethane-filled bamboo clubs, can solve the problems of high manufacturing process precision, low utilization rate of bamboo materials, high waste rate, etc., and achieve the goal of reducing waste and improving material utilization rate Effect

Active Publication Date: 2018-09-11
ZHEJIANG FORESTRY ACAD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the production process of bamboo clubs, the milling process is mainly used to process bamboo laminated wood or bamboo recombined wood into cylindrical clubs. The utilization rate of bamboo is low, and the manufacturing process requires high precision and high scrap rate.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A preparation method of polyurethane filled bamboo cue, comprising the steps of:

[0050] Preparation of polyurethane composition: take by weight

[0051] Material A: 100 parts of polyether polyol, 5 parts of catalyst triethanolamine, 2 g of foaming agent water, 4 parts of hydrophilic silicone oil as foam stabilizer;

[0052] Material B: 50 parts of polymethylene polyisocyanate;

[0053] Add it to the material tank of the foaming machine and set aside;

[0054] Preparation of polymer sizing agent: Dissolve epoxy resin E51 in absolute ethanol, add emulsifier OP-10, stir and emulsify at high speed for 2 hours, continue to stir and heat to 80°C, then slowly add diethanolamine dropwise, and then heat to 140°C ℃, after reacting for 30 minutes, cool down to room temperature, slowly add glacial acetic acid dropwise to neutralize, add a certain amount of water, adjust the concentration of sizing agent to 1000cps, wherein, the mass ratio of epoxy resin, emulsifier, diethanolamin...

Embodiment 2

[0060] A preparation method of polyurethane filled bamboo cue, comprising the steps of:

[0061] Preparation of polyurethane composition: take by weight

[0062] Material A: 80 parts of polyether polyol, 3 parts of catalyst diethanolamine, 1.5 g of foaming agent water, 3 parts of hydrophilic silicone oil as foam stabilizer;

[0063] Material B: 45 parts of polymethylene polyisocyanate;

[0064] Add to the material tank of the foaming machine and set aside;

[0065] Preparation of polymer sizing agent: Mix epoxy resins E51 and E44 at a ratio of 1:1, dissolve them in absolute ethanol, add emulsifier OP-10, stir and emulsify at high speed for 2 hours, continue to stir and heat to 80°C, then slowly drop Add diethanolamine, then heat to 140°C, react for 30 minutes and then cool down to room temperature, slowly add glacial acetic acid dropwise to neutralize, add a certain amount of water, adjust the concentration of sizing agent to 1800cps, among them, epoxy resin, emulsifier, tri...

Embodiment 3

[0071] A preparation method of polyurethane filled bamboo cue, comprising the steps of:

[0072] Preparation of polyurethane composition: take by weight

[0073] Material A: 100 parts of polyether polyol, 5 parts of catalyst triethanolamine, 2 g of foaming agent water, 4 parts of hydrophilic silicone oil as foam stabilizer;

[0074] Material B: 50 parts of polymethylene polyisocyanate;

[0075] Add to the material tank of the foaming machine and set aside;

[0076] Preparation of polymer sizing agent: Dissolve epoxy resin E51 in absolute ethanol, add emulsifier OP-10, stir and emulsify at high speed for 2 hours, continue to stir and heat to 80°C, then slowly add diethanolamine dropwise, and then heat to 140°C ℃, after reacting for 30 minutes, cool down to room temperature, slowly add glacial acetic acid dropwise to neutralize, add a certain amount of water, adjust the concentration of sizing agent to 1000cps, in which, the ratio of epoxy resin, emulsifier, diethanolamine, an...

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Abstract

The invention discloses a preparation method of a bamboo club filled with polyurethane. Curly flexible bamboo skin or bamboo ties serve as basic processing units, an epoxy resin mixture sizing agent is smeared on the basic processing units, and the density of the club is controlled by adjusting the ratio of the bamboo units to the epoxy resin mixture sizing agent; then a rigid polyurethane foam composition is used as filler, the filler is injected from the end of a die pressing die, the filler enters the gaps and the holes of the bamboo units in the rift grain directions of the bamboo units, and under the effect of medium and high temperature, after the polyurethane composition reacts for a period of time, the bamboo club filled with polyurethane is obtained. The yield of products can be effectively increased, the production efficiency is improved, the resource utilization rate is increased, and meanwhile bamboo clubs with different densities and properties are manufactured by adjusting the polyurethane formula and the assembly structure of the bamboo units.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a method for preparing a polyurethane-filled bamboo cue. Background technique [0002] With the improvement of people's quality of life, sports and leisure sports have become a way for people to pursue a better life. Sports activities such as billiards and baseball are accepted and recognized by more and more people. Wherein billiard cue and baseball cue mainly utilize high-quality timber resources such as ash, maple, locust tree, oak to make and form, in order to save wood, people have developed and utilized bamboo laminated wood to make bamboo cue. [0003] In the production process of bamboo clubs, the milling process is mainly used to process bamboo laminated wood or bamboo recombined wood into cylindrical clubs. The utilization rate of bamboo is low, and the manufacturing process requires high precision and high scrap rate. Contents of the invention [0004] In order t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A63B59/51A63B59/52A63D15/08C08G18/48C09D163/00C08G101/00A63B102/18
CPCA63B59/51A63B59/52A63D15/08C09D163/00C08G18/48A63B2102/18C08L2205/025A63B2209/00C08G2110/0083C08G2110/0025C08L63/00Y02W90/10
Inventor 张文福王戈程海涛顾少华庄晓伟于海霞
Owner ZHEJIANG FORESTRY ACAD
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