Composite polyether for environmentally-friendly sheet material, polyurethane raw material composition, rigid polyurethane foam and preparation method and use of rigid polyurethane foam

A technology of combining polyether and foam stabilizer, applied in the field of polyurethane, can solve problems such as poor operability, environmental pollution, and high requirements for use conditions, and achieve the effects of low smoke density, environmental friendliness, and excellent flame retardant performance.
CN103570903AActive Publication Date: 2014-02-12SHANGHAI DONGDA POLYURETHANE
1 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI DONGDA POLYURETHANE
Publication Date
2014-02-12

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a composite polyether for an environmentally-friendly sheet material, rigid polyurethane foam and a preparation method of the rigid polyurethane foam. The composite polyether comprises, by weight, 2-4 parts of polyether polyol SU-450L, 6-8 parts of polyester polyol PS-2352, 0.2-0.3 parts of a foam stabilizer, 0.3-0.5 parts of a catalyst, 0.8-1.0 part of an alkane foaming agent, 0.18-0.22 parts of water and 2-3 parts of a fire retardant. Through use of the alkane foaming agent, the composite polyether has an ODP value of 0 and a low GWP value. The rigid polyurethane foam has excellent flame retardation, side stability and compressive strength. The polyurethane raw material composition has low smoke density in use, is environmentally friendly, and has strong operationality and wide application prospects in the building industry.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of polyurethane, in particular to a combined polyether, a polyurethane raw material composition, a rigid polyurethane foam prepared from the raw material composition, a preparation method and application thereof. Background technique

[0002] Since 2005, China's building energy-saving standards have been significantly improved. To achieve the 65% energy-saving target by 2020, comprehensive energy-saving measures must be implemented on 43 billion square meters of building exterior walls.

[0003] Rigid polyurethane foam is an excellent thermal insulation material, and it also has many advantages such as sound insulation, moisture resistance, and corrosion resistance. It is widely used in refrigerators, freezers, heating, water heaters and other industries. In developed countries, the sales market of rigid polyurethane foam is dominated by construction, accounting for more than 50%, and the refrigeration industry accoun...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More