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Formaldehyde-free mineral fiber insulation products

A mineral fiber, fiber technology, used in building construction, textiles and paper, building components, etc.

Active Publication Date: 2011-12-14
可耐福保温材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, although the strength of these binders is acceptable for some applications, it is not as good as commonly used phenol-formaldehyde based binders

Method used

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  • Formaldehyde-free mineral fiber insulation products

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0047]A non-limiting example of the invention is referred to figure 1 The description follows, which shows the morphology of the samples used to test the separation strength.

[0048] Prepare the aqueous binder by mixing together:

[0049] Approximate weight %

Powdered Glucose Monohydrate

12.9％

Powdered Anhydrous Citric Acid

2.3％

28% ammonia

2.6％

Silane A-1100

0.05％

water

82.1％

[0050] The binder is used to produce fiberglass insulation products on a standard production line, just after fiberization using an in-house spinner, the binder is sprayed onto the glass fibers, the coated fibers are collected, combined into mats, and processed in the usual way solidified.

[0051] The binder has a pH of about 8 when applied to glass fibers.

[0052] Cured fiberglass insulation products have:

[0053] .The binder content is about 5wt%, determined by the loss on ignition

[0054] .The thickness is ...

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Abstract

A packaged mineral fiber insulation material having: a) a recovered caliper of at least 95% of nominal caliper; and b) an ordinary separation strength of at least 95 g / g; and c) a weathered separation strength of at least 75 g / g; the material comprising Mineral fibers and an organic formaldehyde-free binder in an amount of less than 15% by weight, preferably less than 10% by weight, which binder has been applied to the fibers of the insulating material in liquid form at a pH value greater than 5.

Description

technical field [0001] The present invention relates to a mineral fiber insulation product with a low-formaldehyde or formaldehyde-free binder. Background technique [0002] The industry standard binder for fibrous insulation, such as glass wool and rock wool insulation, is based on phenol formaldehyde. Although this binder can provide suitable properties for insulation products, it has been desired for some time to move away from the use of phenol formaldehyde, especially because of environmental concerns. [0003] Traditional polyester-based binder systems have been suggested before but have not gained acceptance in the insulation industry, not least due to their strength in holding mineral fibers together, especially when exposed to moisture or weathering conditions , will appear insufficient. [0004] To date, only one low-formaldehyde based mineral insulator binder system has been used on an industrial scale for glass wool insulation, which is based on polyacrylic aci...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D04H13/00D04H1/64E04B1/78D04H1/4209
CPCD04H1/64C04B2111/1006D04H1/4209C04B30/02E04B1/7658Y10T428/161Y10T428/163Y10T428/249924C04B14/42C04B24/287
Inventor R·杰克逊T·爱恩道尔G·拜布特
Owner 可耐福保温材料有限公司