CN103483523A - Polyurethane foam added with modified attapulgite - Google Patents

Abstract

The invention discloses polyurethane foam added with modified attapulgite. The polyurethane foam is characterized by being prepared through mixing, pouring, reacting and curing A materials and a B material in parts by weight, wherein the A materials include 100 parts of polyether polyol, 2-3 parts of water, 25-30 parts of silicon dioxide powder, 21-23 parts of aluminium oxide, 13-18 parts of bamboo charcoal powder, 7-10 parts of calcium stearate, 2.7-3.3 parts of phenylamine triethoxysilane, 7-9 parts of aluminium nitride, 2-3 parts of ammonium dihydrogen phosphate, 1-2 parts of N-(beta-aminoethyl)-gamma-aminopropyl trimethoxy silane, 1-2 parts of butyltin oxide and 6-8 parts of modified attapulgite; the B material includes 30-40 parts of isocyanate. The modified attapulgite is added, so that the polyurethane foam has the adsorption function, is an excellent physical fire retardant, has excellent fire retardance, as well as excellent thermal insulation and sound insulation effects, is low in production cost, safe and non-toxic.

Description

A kind ofly add attapulgite modified polyurethane foam

Technical field

The present invention relates to a kind of foam, particularly a kind ofly add attapulgite modified polyurethane foam.

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.

Summary of the invention

The purpose of this invention is to provide a kind of attapulgite modified polyurethane foam of adding.

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

A kind ofly add attapulgite modified polyurethane foam, made by the mixing of A, B material, cast, reaction, the slaking of following weight part:

A material: polyether glycol 100, water 2-3, silicon dioxide powder 25-30, aluminium sesquioxide 21-23, bamboo charcoal powder 13-18, calcium stearate 7-10, anilinomethyl triethoxysilane 2.7-3.3, aluminium nitride 7-9, primary ammonium phosphate 2-3, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 1-2, Mono-n-butyltin 1-2, attapulgite modified 6-8;

B material: isocyanic ester 30-40.

Described attapulgite modified preparation by the following method: the raw material that takes following weight part: attapulgite 150-155, jade 3-4, Flos Rosae Rugosae quintessence oil 1-2, stalk ashes 50-55, Silane coupling agent KH550 1-2, sodium bicarbonate 2-3, pentaerythritol triacrylate 2-3, Vanay 1-2, linking agent TAC1-2, aluminium hydroxide 3-4; The preparation method puts into calcining furnace by attapulgite, jade, and under 610-630 ℃, calcining 3-4 hour, take out, with stalk ashes, sodium bicarbonate, mix, be ground to and obtain 300-400 order powder, then, then add pentaerythritol triacrylate, aluminium hydroxide, Silane coupling agent KH550 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.

The polyurethane foam that interpolation of the present invention is attapulgite modified 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; The present invention also has excellent heat insulation, soundproof effect, and production cost is low, safety non-toxic.

Specific embodiments

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

A kind ofly add attapulgite modified polyurethane foam, 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): polyether glycol 100, water 2, silicon dioxide powder 25, aluminium sesquioxide 21, bamboo charcoal powder 13, calcium stearate 7, anilinomethyl triethoxysilane 2.7, aluminium nitride 7, primary ammonium phosphate 2, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 1, Mono-n-butyltin 1, attapulgite modified 6;

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

Described attapulgite modified preparation by the following method: the raw material that takes following weight part (kilogram): attapulgite 150, jade 3, Flos Rosae Rugosae quintessence oil 1, stalk ashes 50, Silane coupling agent KH550 1, sodium bicarbonate 2, pentaerythritol triacrylate 2, Vanay 1, linking agent TAC1, aluminium hydroxide 3; The preparation method puts into calcining furnace by attapulgite, jade, and under 610-630 ℃, calcining 3-4 hour, take out, with stalk ashes, sodium bicarbonate, mix, be ground to and obtain 300-400 order powder, then, then add pentaerythritol triacrylate, aluminium hydroxide, Silane coupling agent KH550 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.

The polyurethane foam that interpolation of the present invention is attapulgite modified 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.

Each functional parameter of the material of gained is as follows: compressive strength (MPa): 0.34, and oxygen index: 26, thermal conductivity (W/mK): 0.037.

Claims (1)

1. one kind is added attapulgite modified polyurethane foam, it is characterized in that being made by the mixing of A, B material, cast, reaction, the slaking of following weight part:

A material: polyether glycol 100, water 2-3, silicon dioxide powder 25-30, aluminium sesquioxide 21-23, bamboo charcoal powder 13-18, calcium stearate 7-10, anilinomethyl triethoxysilane 2.7-3.3, aluminium nitride 7-9, primary ammonium phosphate 2-3, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 1-2, Mono-n-butyltin 1-2, attapulgite modified 6-8;

B material: isocyanic ester 30-40;

Described attapulgite modified preparation by the following method: the raw material that takes following weight part: attapulgite 150-155, jade 3-4, Flos Rosae Rugosae quintessence oil 1-2, stalk ashes 50-55, Silane coupling agent KH550 1-2, sodium bicarbonate 2-3, pentaerythritol triacrylate 2-3, Vanay 1-2, linking agent TAC1-2, aluminium hydroxide 3-4; The preparation method puts into calcining furnace by attapulgite, jade, and under 610-630 ℃, calcining 3-4 hour, take out, with stalk ashes, sodium bicarbonate, mix, be ground to and obtain 300-400 order powder, then, then add pentaerythritol triacrylate, aluminium hydroxide, Silane coupling agent KH550 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.