CN105175668B - A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material - Google Patents
A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material Download PDFInfo
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- CN105175668B CN105175668B CN201510624814.7A CN201510624814A CN105175668B CN 105175668 B CN105175668 B CN 105175668B CN 201510624814 A CN201510624814 A CN 201510624814A CN 105175668 B CN105175668 B CN 105175668B
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- lauxite
- mineral wool
- acicular wollastonite
- insulation material
- formula
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Abstract
A kind of high osmosis Lauxite containing specific draw ratio acicular wollastonite for mineral wool insulation material is newly formulated, by draw ratio >=20 that 1 10% is added in being formulated in Lauxite:1 acicular wollastonite filler, realize that Lauxite significantly improves to mineral wool permeability and interface compatibility, so as to effectively improve the mechanical performance of the production efficiency of mineral wool insulation material and product.
Description
Technical field
The present invention relates to a kind of Lauxite formula of modification, more particularly to a kind of height available for mineral wool insulation material
Permeability acicular wollastonite/Lauxite formula.
Background technology
For mineral wool because it has thermal and insulating performance good, sound insulating and absorbing effect is good, and density is small, thermal conductivity factor is low, fire-retardant, ring
Guarantor, chemical property temperature, it is nontoxic, cheap, service life is long outstanding advantages of, be widely used in insulation material neck
The various aspects in domain.
Mineral wool is before use, must be by dipping process, just now with certain mechanical strength and performance.Ureaformaldehyde
Resin is widely used in mineral wool impregnation because of its remarkable cost performance, the always highly effective binder as mineral wool insulation material
In processing.Simultaneously as mineral wool surface has very strong polarity, and the binding agent polarity such as Lauxite is weaker, therefore causes
Interface compatibility between mineral wool and organic resin is poor, causes resin impregnated speed in product processing slow, and be difficult to
Mineral wool is impregnated with completely, so as to have impact on the speed of production of product and the quality of end article to a certain extent.Therefore, how
By the modification to Lauxite, permeability and interface compatibility of the Lauxite to mineral wool are improved, it appears most important.
Wollastonite is a kind of anorthic system, generally in the form of sheets, radial or fibrous silicate crystal.Color is white,
Sometimes band light gray, pale red tone, have glassy lustre, are widely used in the composite material Is such as papermaking, ceramics, cement and plastic, rubber
In industry.Acicular wollastonite (part commodity are also referred to as wollastonite fibre) is one kind of wollastonite powder stuffing, is widely used
In field of compound material.Using the more needle-like filler for common draw ratio, (its draw ratio is 8 in industry at present:1 to 15:1
Between), on the performance of the binding agents such as Lauxite almost without substantial influence.High length-diameter ratio acicular wollastonite is in recent years
The product that in the market occurs, its higher draw ratio has good strengthening action to rubber, thus is used as rubber reinforcing filler quilt
Applied in rubber industry, but high length-diameter ratio acicular wollastonite is to Binder Properties such as Lauxites, particularly infiltrative to change
It is kind but to have no report.
The content of the invention
It is an object of the invention to provide a kind of high osmosis acicular wollastonite/ureaformaldehyde tree for mineral wool insulation material
Fat formula, Lauxite is improved to the permeability of mineral wool, accelerates the impregnation speed of mineral wool, and can carry to a certain extent
The interface compatibility of high mineral wool and Lauxite, so as to be advantageous to the raising of product mechanical performance.
The purpose of the present invention is achieved through the following technical solutions：
A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material, it is characterised in that percentage by weight
Than described acicular wollastonite/Lauxite formula is made up of following component：
(a) formaldehyde, dosage 55-70%.
(b) urea, dosage 15-25%.
(c) draw ratio >=20:1 acicular wollastonite, dosage 1-10%.
(d) melamine, dosage 10-15%.
(e) pH value regulator, pH value is adjusted to as 7-8 using pH value regulator.
After above-mentioned material is mixed and stirred for uniformly, being adjusted to pH value using pH value regulator can obtain as 7-8.
Formaldehyde of the present invention is the formalin that commercially available content is 37%.
Urea of the present invention is commercially available technical grade product.
The present invention uses specific high length-diameter ratio acicular wollastonite, i.e. draw ratio is more than or equal to 20:1 acicular wollastonite,
For key problem in technology therein.It is visible as the increase of wollastonite draw ratio, the seepage velocity of resin are gradually increasing from accompanying drawing 1；
It can be observed from accompanying drawing 2 as the increase of wollastonite draw ratio, products machinery intensity rise.Applicant has found under study for action,
When draw ratio >=20 of acicular wollastonite:When 1, there is the interface compatibility and stiffness more more advantageous than mineral wool, more favorably
In the raising for promoting Resin permeability.The acicular wollastonite of the draw ratio can result in Lauxite to the permeability of mineral wool and
Interface compatibility reaches optimum balance.Described acicular wollastonite has sale through coupling agent surface treatment, market.
In the present invention draw ratio >=20 are added in conventional Lauxite formula:1 high length-diameter ratio acicular wollastonite.The length
The acicular wollastonite in footpath and the good interface compatibility of Lauxite, and can by acicular wollastonite it is excellent carry effect and hard
Very property, Lauxite is improved to the permeability of mineral wool, accelerates the impregnation speed of mineral wool, and can improve to a certain extent
The interface compatibility of mineral wool and Lauxite, so as to be advantageous to the raising of product mechanical performance.
Melamine of the present invention is commercially available technical grade product.
PH value regulator of the present invention includes sodium hydroxide, potassium hydroxide.
Advantages of the present invention：
The present invention is improved on the basis of conventional Lauxite formula, and technique is simple, and operation is easy, without extra
Additional investment and scrap build.High osmosis acicular wollastonite/Lauxite prepared by the formula, can be excellent by acicular wollastonite
Different stiffness and effect is carried, raising Lauxite accelerates the impregnation speed of mineral wool to the permeability of mineral wool, and can be with
The interface compatibility of mineral wool and Lauxite is improved to a certain extent, so as to be advantageous to the raising of product mechanical performance.
With reference to specific embodiment, the present invention will be described in detail.Protection scope of the present invention is not with specific implementation
Mode is limited, but is defined in the claims.
Brief description of the drawings
Fig. 1 is filler (wollastonite) draw ratio and resin penetration speed elevated rate relation curve；
Fig. 2 is filler (wollastonite) draw ratio and products machinery intensity elevated rate relation curve.
Embodiment
Embodiment 1：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
65kg formalins are 25 with 18kg urea, 10kg melamines, 7kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 30-35% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
20-35%.
Embodiment 2：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
70kg formalins are 25 with 15kg urea, 14kg melamines, 1kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 15-20% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
10-20%.
Embodiment 3：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
55kg formalins are 20 with 25kg urea, 10kg melamines, 10kg draw ratios:1 acicular wollastonite, mix equal
It is even, pH value is then adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula with it is pure
Lauxite is compared, and can improve 25-35% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product carries
High 20-30%.
Embodiment 4：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
69kg formalins are 30 with 15kg urea, 15kg melamines, 1kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 15-25% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
15-25%.
Embodiment 5：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
65kg formalins are 25 with 20kg urea, 10kg melamines, 5kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 26-32% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
18-30%.
Embodiment 6：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
69kg formalins are 20 with 15kg urea, 15kg melamines, 1kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 12-18% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
10-16%.
Embodiment 7：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
65kg formalins are 30 with 18kg urea, 10kg melamines, 7kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 32-38% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
21-35%.
Embodiment 8：
A kind of high osmosis acicular wollastonite/Lauxite formula for mineral wool insulation material, consisting of, will
65kg formalins are 25 with 17kg urea, 10kg melamines, 8kg draw ratios:1 acicular wollastonite, is mixed evenly,
Then pH value is adjusted to 7-8 with sodium hydroxide, you can obtain high osmosis acicular wollastonite/Lauxite.The formula and pure urea
Urea formaldehyde is compared, and can improve 30-36% to the seepage velocity of glass fibre, the mechanical strength of prepared glass fiber reinforced plastics product improves
20-36%.
Claims (5)
- A kind of 1. acicular wollastonite/Lauxite composition for mineral wool insulation material, it is characterised in that percentage by weight Than described acicular wollastonite/Lauxite formula is made up of following component：(a) formaldehyde, dosage 55-70%；(b) urea, dosage 15-25%；(c) draw ratio be 20~30: 1 acicular wollastonite filler, dosage 1-10%；(d) melamine, dosage 10-15%；(e) pH value regulator, pH value is adjusted to as 7-8 using pH value regulator.
- 2. acicular wollastonite/Lauxite composition according to claim 1 for mineral wool insulation material, its feature It is, the formaldehyde is the formalin that commercially available content is 37%.
- 3. acicular wollastonite/Lauxite composition according to claim 1 for mineral wool insulation material, its feature It is, the urea is commercially available technical grade product.
- 4. acicular wollastonite/Lauxite composition according to claim 1 for mineral wool insulation material, its feature It is, the melamine is commercially available technical grade product.
- 5. acicular wollastonite/Lauxite composition according to claim 1 for mineral wool insulation material, its feature It is, the pH value regulator is sodium hydroxide or potassium hydroxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624814.7A CN105175668B (en) | 2015-09-25 | 2015-09-25 | A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510624814.7A CN105175668B (en) | 2015-09-25 | 2015-09-25 | A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105175668A CN105175668A (en) | 2015-12-23 |
| CN105175668B true CN105175668B (en) | 2017-12-05 |
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| CN201510624814.7A Expired - Fee Related CN105175668B (en) | 2015-09-25 | 2015-09-25 | A kind of acicular wollastonite/Lauxite formula for mineral wool insulation material |
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| CN101138781A (en) * | 2007-09-24 | 2008-03-12 | 中国南车集团戚墅堰机车车辆工艺研究所 | Investment casting formwork and method of producing the same |
| CN102044709B (en) * | 2010-11-05 | 2014-04-02 | 华南师范大学 | Storage battery colloidal electrolyte and preparation method thereof |
| CN103572503A (en) * | 2012-07-24 | 2014-02-12 | 陈照峰 | Hydrophobic type glass wool blanket and adhesive proportion thereof |
| CN103709601B (en) * | 2013-12-09 | 2016-04-20 | 辽宁盖亚科技开发有限责任公司 | Sheet material containing modified urea-formaldehyde foamed glue and the application of sheet material and preparation method thereof |
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