CN103483531A

CN103483531A - Polyurethane foam material prepared from bean pulp

Info

Publication number: CN103483531A
Application number: CN201310432820.3A
Authority: CN
Inventors: 任友卫
Original assignee: ANHUI JIFENG ENERGY SAVING MATERIAL Co Ltd
Current assignee: ANHUI JIFENG ENERGY SAVING MATERIAL Co Ltd
Priority date: 2013-09-23
Filing date: 2013-09-23
Publication date: 2014-01-01

Abstract

The invention discloses a polyurethane foam material prepared from bean pulp. The material is characterized in that the polyurethane foam material is prepared from A materials and B materials through mixing, pouring, reacting and curing, wherein the A materials comprise the following raw materials in weight part (kilogram):100 parts of polypropylene oxide glycol, 10-12 parts of bean pulp, 4-5 parts of water, 6.0-8.0 parts of polyacrylamide, 1.1-1.3 parts of diethylenetriamine, 25-30 parts of ceramic dreg powder, 3-4 parts of pentaerythritol, 5-7 parts of alum powder, 1-2 parts of polyoxypropylene glycerol ether, 1-2 parts of poly(butyl acrylate), and 6-8 parts of modified attapulgite; the B materials comprise the following raw materials in weight part (kilogram): 30-40 parts of polyisocyanate. According to the invention, the modified attapulgite is added, so that the adsorption effect is achieved, and the excellent fire retardance effect is realized as the modified attapulgite is an excellent physical fire retardant; the polyurethane foam material is prepared from the bean pulp, thereby being environmentally friendly and degradable; moreover, the source of the bean pulp is extensive and the cost of the bean pulp is low, so that the defect of high cost of the polyurethane foam material can be overcome.

Description

A kind of bean pulp polyurethane foam materials

Technical field

The present invention relates to a kind of foam, particularly a kind of bean pulp polyurethane foam materials.

Background technology

Urethane foam is that isocyanic ester and oxy-compound are made through the polymerization foaming, by its hardness, can be divided into soft and hard two classes, and wherein soft is principal item.In general, it has splendid elasticity, flexibility, elongation and compressive strength; Chemical stability is good, anti-many solvents and oils; High abrasion resistance, large 20 times than natural sponge; Also having the performances such as good processibility, heat insulating ability, binding property, be a kind of cushioning material of excellent property, but price is higher.Urethane foam is general only for buffering package or the cushion material of high-grade precision instrument, valuable apparatus, high-grade artwork etc., also can be made into packaging vessel exquisite, that protectiveness is fabulous; Also can adopt foam-in-place to carry out buffering package to article.

Attapulgite is containing Shuifu County's magnesium silicate crystal mineral, has unique layer chain-like structure, unusual colloidal property and powerful adsorptive power; In addition, attapulgite has numerous nano level zeolite cavities that are parallel to excellent brilliant direction, thereby has sizable internal surface area; Its crystal grain is very little simultaneously, and outer surface area is also very large.The adsorption of attapulgite is divided into physical adsorption and chemisorption.Natural attapulgite clay comprises some dirts, if you would take off stone, kaolinite, carbonate, a small amount of particulate quartz and feldspar, may stop up duct, reduce surface-area, weakened whole physical and chemical performance, thereby colloidality, adsorptivity of making attapulgite clay etc. are greatly affected in industrial application.The method of activation modification can be removed the impurity of natural attapulgite clay, increases specific surface area, improves its absorption and ion-exchange performance, makes attapulgite clay be widely used in the fields such as absorption, decolouring, dytory, catalyzer and carrier.Contain zeolite water and crystal water in attapulgite, the water discharged when porous plastics burns can reduce the temperature of porous plastics, thereby plays certain fire retardation; In addition, contain Mg, Si element in attapulgite, the oxide compound generated during burning covers the Foam Plastic Surface starvation, thereby reaches fire-retardant purpose.

Dregs of beans is a kind of byproduct obtained after the soybean extracting bean oil.According to the method difference of extracting, can be divided into and soak dregs of beans and two and soak two kinds of dregs of beans.The byproduct of wherein take after the extraction extracting bean oil soaks dregs of beans as one, and first with squeezing, gets oil, then the byproduct of gained is called two and soaks dregs of beans after oil is got in lixiviate.In the whole course of processing, very important to the control of temperature, excess Temperature can have influence on protein content, thereby is directly connected to quality and the use of dregs of beans; The too low water content that can increase dregs of beans of temperature, the water content height can affect the quality of dregs of beans in the shelf lives.One production technique of soaking dregs of beans is comparatively advanced, and protein content is high, is the principal item circulated on the current spot market of China.

Summary of the invention

The purpose of this invention is to provide a kind of fire-retardant, degradable bean pulp polyurethane foam materials.

In order to realize purpose of the present invention, the present invention passes through following scheme implementation:

A kind of bean pulp polyurethane foam materials, by the mixing of A, B material, cast, reaction, the slaking of following weight part, made:

A material: polyoxypropyleneglycol 100, dregs of beans 10-12, water 4-5, polyacrylamide 6.0-8.0, diethylenetriamine 1.1-1.3, ceramic ground-slag end 25-30, tetramethylolmethane 3-4, alum powder 5-7, polypropylene glycerol aether 1-2, butyl polyacrylate 1-2, attapulgite modified 6-8;

B material: polyisocyanates 30-40.

Described attapulgite modified preparation by the following method: the raw material that takes following weight part: attapulgite 95-110, potassium felspar sand 1-2, stalk ashes 50-55, gypsum 3-4, vinylbenzene 2-3, sodium carbonate 2-3, Dyhard RU 100 1-2, bicarbonate of ammonia 3-4, polyvinyl alcohol 3-4, dioctyl ester 4-5, aluminium nitride 5-6, borax 3-4, clorafin 1-2; The preparation method puts into calcining furnace by attapulgite, potassium felspar sand, gypsum, and under 570-590 ℃, calcining 4-5 hour, take out, with stalk ashes, bicarbonate of ammonia, borax, mix, be ground to and obtain 300-400 order powder, then, then add vinylbenzene, sodium carbonate, Dyhard RU 100 to mix, continue to grind 30-45 minute, to fully disperseing, then add other remaining component, continue to grind after 30-45 minute, stir 15-30 minute under 1500-1800 rev/min, obtain attapulgite modified.

Bean pulp polyurethane foam materials of the present invention is prepared from by following concrete steps: A is expected to each raw material mixes, grind at normal temperatures 20-30 minute, obtain slurry; The B material is added in the A material, 200-300 rev/min is stirred 30-45 second again; Be poured into free foaming in mould, obtain the mould base; Then, together with mould, the mould base is sent in tunnel type baking oven to temperature-gradient method: under 40-45 ℃, reaction 15-25 minute; Under 55-65 ℃, react 10-15 minute again; Under 75-85 ℃, react 5-10 minute again; Finally at 90-100 ℃ of lower slaking 5-7 hour.

The present invention adds attapulgite modified, not only has adsorption, and is a kind of good physics fire retardant, has excellent fire retardation; Utilize dregs of beans to prepare polyurethane foam, environmentally friendly, degradable, and also the dregs of beans source is wide, cost is low, has solved the high shortcoming of polyurethane foam cost.

Specific embodiments

Below by specific examples, the present invention is described in detail.

The A material: each parts by weight of raw materials is (weight part is kilogram): polyoxypropyleneglycol 100, dregs of beans 12, water 4, polyacrylamide 6.0, diethylenetriamine 1.1, ceramic ground-slag end 25, tetramethylolmethane 3, alum powder 5, polypropylene glycerol aether 1, butyl polyacrylate 1, attapulgite modified 6;

The B material: parts by weight of raw materials is (weight part is kilogram): polyisocyanates 30.

Described attapulgite modified preparation by the following method: the raw material that takes following weight part (kilogram): attapulgite 95, potassium felspar sand 1, stalk ashes 50, gypsum 3, vinylbenzene 2, sodium carbonate 2, Dyhard RU 100 1, bicarbonate of ammonia 3, polyvinyl alcohol 3, dioctyl ester 4, aluminium nitride 5, borax 3, clorafin 1; The preparation method puts into calcining furnace by attapulgite, potassium felspar sand, gypsum, and under 570-590 ℃, calcining 4-5 hour, take out, with stalk ashes, bicarbonate of ammonia, borax, mix, be ground to and obtain 300-400 order powder, then, then add vinylbenzene, sodium carbonate, Dyhard RU 100 to mix, continue to grind 30-45 minute, to fully disperseing, then add other remaining component, continue to grind after 30-45 minute, stir 15-30 minute under 1500-1800 rev/min, obtain attapulgite modified.

Each functional parameter of the material of gained is as follows: density (kg/cm ³): 39, compressive strength (MPa): 0.24, oxygen index: 28, thermal conductivity (W/mK): 0.033.

Claims

1. a bean pulp polyurethane foam materials is characterized in that being made by the mixing of A, B material, cast, reaction, the slaking of following weight part:

The A material: each parts by weight of raw materials is (weight part is kilogram): polyoxypropyleneglycol 100, dregs of beans 10-12, water 4-5, polyacrylamide 6.0-8.0, diethylenetriamine 1.1-1.3, ceramic ground-slag end 25-30, tetramethylolmethane 3-4, alum powder 5-7, polypropylene glycerol aether 1-2, butyl polyacrylate 1-2, attapulgite modified 6-8;

The B material: parts by weight of raw materials is (weight part is kilogram): polyisocyanates 30-40;