JP2944300B2 - Fiberglass insulation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass fiber heat insulating material, which is nonflammable, water repellent and dustproof, and impregnated in the glass fiber heat insulating material. It relates to an aqueous emulsion.

[0002]

2. Description of the Related Art In the manufacture of a heat insulating material made of inorganic fiber, particularly, a heat insulating material made of glass fiber, an additive composed of uncured phenolic resin, urea and other auxiliary components is usually added to a felt cloth to form a certain thickness. Before forming the web,
It is sprayed or impregnated uniformly in the form of an aqueous solution, baked at a predetermined temperature and time, and cured to form a product.

[0003] However, the inorganic heat insulating material treated only with the above-mentioned additives generates dust when cut into predetermined dimensions,
The worker or the contractor must take appropriate measures such as putting on a mask. Conventionally, as a countermeasure against this dust, a problem has been solved by using a dust inhibitor (such as mineral oil) in combination with the above additive.

[0004]

As mentioned above, the dust inhibitor has a certain dust-preventing effect. 1) In the base material test of the non-combustible material test according to the Ministry of Construction Notification No. 1828, the criteria for judging the temperature are as follows. Where the value is 50 ° C or less, 4
9 ° C., which is close to the criterion value (however, 2% adhesion, for example, 0.5 to 2.0% of mineral oil per 1 kg of glass wool)
If it adheres, it will exceed 50 ° C). 2) When used alone, none of them have water repellency. 3) Therefore, it is absolutely necessary to use the silicone resin together with the silicone resin.

In view of such circumstances, the present invention has improved the conventional use of a water repellent and a dustproof agent separately, and can impart water repellency and dustproofness with one kind of chemical, and have a nonflammable property. It is an object of the present invention to provide a glass fiber heat insulating material.

[0006]

According to the present invention, glass fibers are made of at least one of mineral oils, synthetic oils and natural fats and oils.
That relative oil 100 parts by weight, is blended is 100 to parts by weight of the halogen-compound having a stable heat resistance at 250 ° C. or higher, and a surfactant is the oil, relative to the halogen compound per 100 parts by weight, 30 to 5 parts by weight, and further impregnated with an aqueous emulsion composed of a total of 10 to 80 % by weight of the three components of the oil, the halogen compound and the surfactant and 90 to 20 % by weight of water.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The glass fiber heat insulating material according to the present invention is not particularly limited, but a generally used material is used.

In the oil component of the present invention , mineral oil is, for example, Esso Petroleum Co., Ltd., trade name 320, and synthetic oil is, for example, polybutene manufactured by Nippon Oil & Fats Co., Ltd., polybis, trade name is natural oil and fat. For example, known hardened castor oil, rapeseed white squeezed oil, coconut oil, or tallow hardened oil can be used.

Furthermore, as the natural fats and oils, refined lanolin oil is preferred, and as the halogen compound, for example appearance in a viscous liquid, the halogen compound having a stable heat resistance at 250 ° C. or higher, and particularly organic bromine compound As the surfactant, various known surfactants such as nonionic, anionic, cationic and amphoteric surfactants can be used.

In the aqueous emulsion of the present invention , an uncured phenol resin, a urea resin, aqueous ammonia and a binder as a commonly used auxiliary component can be used in combination. The aqueous emulsion is excellent in water repellency and flame retardancy due to synergistic effects of an oil component, a halogen compound, a surfactant and the like, and can almost completely prevent generation of dust.

Further, the aqueous emulsion of the present invention is improved in that it is difficult to form an emulsion of an oil component and an uncured phenol resin, a urea resin or the like, and is stable even when an uncured phenol resin or a urea resin is used in combination. There is an effect that an aqueous emulsion can be obtained.

[0012]

The present invention will be specifically described below with reference to examples. Example 1 Refined lanolin oil (manufactured by Shin Nippon Rika Co., Ltd., trade name Rikaran D)
G) 12 parts by weight (hereinafter referred to as parts by weight) , 4 parts of neopentyl alcohol ester oil (manufactured by NOF CORPORATION, trade name Nissan Unistar H334R), halogen compound (Great Lak)
es Chemical Corp., RHT4-DIOL (trade name), 6 parts, polyoxyethylene nonylphenol ether (HLB16) 0.5 part as an emulsifier were uniformly mixed and mixed in 70 parts of water vigorously stirred with an emulsifier homodisper. The mixture was added to obtain a crude emulsion. This is set to high pressure homogenizer pressure 3
Passing through 00 Kgf / cm ² , a stable emulsion was obtained.

Example 2 16 parts and 10 parts of the same purified lanolin oil and halogen compound as in Example 1, respectively, and polyoxyethylene nonylphenol ether (HLB 14) 2 as an emulsifier were used.
Part, polyoxyethylene lauryl ether (HL.
B. 16) One part was mixed, and water 70 was mixed in the same manner as in Example 1.
In addition, a stable emulsion was obtained.

Comparative Example 1 18 parts of the same purified lanolin oil as in Example 1, chlorinated paraffin (Toyoparax A40, manufactured by Tosoh Corporation) 1
2 parts, 2 parts of polyoxyethylene nonylphenol ether (HLB 10.9), 0.5 part of calcium dodecylbenzenesulfonate and 1 part of polyoxyethylene lauryl ether were mixed, and the mixture was mixed in the same manner as in Example 1. Water 70
In addition, an emulsion was obtained.

Comparative Example 2 Except that 30 parts of the same purified lanolin as Comparative Example 1 was used,
An emulsion was obtained in the same manner as in Comparative Example 1. Example 1
Table 1 shows the properties of the emulsions obtained in Comparative Example 2 and Comparative Examples 1 and 2.

[0016]

[Table 1]

Next, the emulsions of Example 2, Comparative Example 1 and Comparative Example 2 were sprayed immediately after fiberizing the glass,
Cotton is collected to form a mat, and this mat is
The mixture was passed through a heating furnace at a temperature of ℃ ° C. to cure the binder. The binder was adjusted to a predetermined density and thickness to prepare a felt or board to obtain a glass fiber heat insulating material. Table 2 shows the dust generation rate, water repellency, and nonflammability of the obtained glass fiber heat insulating material.

[0018]

[Table 2]

The dust generation rate is based on JIS A 9523.
According to the vibrating sieve passage rate of
According to No. 828, water repellency was measured by cutting a test piece into 50 × 50 mm and placing it in water in a container (5 liter capacity) containing water.
Submerge for a minute and check whether the test piece floats to evaluate its performance.

[0020]

As described above, according to the present invention, the glass fiber insulation material is impregnated with an aqueous emulsion containing an oil component , a halogen compound and a surfactant, and the effects of these components are synergistic. In the base material test according to the Ministry of Construction Notification No. 1828, the reference value of the temperature was set to 20 to 3
The temperature can be remarkably suppressed to 5 ° C., and in addition to flame retardancy and water repellency, an excellent dustproof effect can be exhibited. Further, there is an effect that it is not necessary to use a silicone resin as in the related art.

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-40055 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) F16L 59/02

Claims (1)

(57) [Claims] Claims: 1. Mineral oil, synthetic oil , natural oil
With respect to 100 parts by weight of oil consisting of at least one kind of fat ,
Halogen compound 1 having stable heat resistance at 250 ° C. or higher
00 to 10 parts by weight, and the surfactant is added to the oil and the halogen compound in a total amount of 3 parts by weight based on 100 parts by weight.
0 to 5 parts by weight, and the oil and the halogen compound
And a surfactant in a total of 10 to 80 % by weight and water 9
A glass fiber heat insulating material impregnated with an aqueous emulsion having a composition of 0 to 20 % by weight.