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Degradable polyurethane wood-imitation material and preparing method thereof
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A wood-like material and polyurethane technology, applied in the field of polyurethane, can solve problems such as toxicity, environmental pollution, and difficult degradation of polyurethane materials
Inactive Publication Date: 2016-03-09
SHANDONG INOV NEW MATERIALS CO LTD
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Abstract
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Problems solved by technology
First, most of the raw materials and intermediates for the production of polyurethane come from non-renewable resources such as petroleum and coal. cause a lot of environmental pollution
Second, polyurethane imitation wood materials are usually divided into two types: 141B foaming system and full water foaming system. Among them, 141B foaming system is the current mainstream system, but 141B foaming system is not an environmentally friendlyfoaming agent, and it is used all over the world. Gradually limit its use
Method used
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Embodiment 1
[0028] The degradable polyurethane imitation wood material is prepared as follows:
[0029] In parts by weight, component A:
[0030]
[0031]
[0032] Component B:
[0033] Polymethylene polyphenylisocyanate.
[0034] The preparation method is as follows:
[0035] (1) Add YNW-4110, A-30, AC-009 into the reaction kettle and stir, then add B8444, H 2 O, Y-12, Y-27 and PC-41, stirred at room temperature for 10 minutes to obtain component A;
[0036] (2) Mix and react component A and component B according to the weight ratio of 1:1.1 to obtain a degradable polyurethane imitation wood material. The test results are shown in Table 1.
[0037] Table 1 embodiment 1 product detection index
[0038]
Embodiment 2
[0040] The degradable polyurethane imitation wood material is prepared as follows:
[0041] In parts by weight, component A:
[0042]
[0043] Component B:
[0044] Polymethylene polyphenylisocyanate.
[0045] The preparation method is as follows:
[0046] (1) Add YNW-4110, A-30, AC-009 into the reaction kettle and stir, then add B8444, H 2 O, PC-5, Y-27 and PC-41, stirred at room temperature for 20 minutes to obtain component A;
[0047] (2) Mix and react component A and component B according to the weight ratio of 1:1.1 to obtain a degradable polyurethane imitation wood material. The test results are shown in Table 2.
[0048] Table 2 embodiment 2 product detection index
[0049]
Embodiment 3
[0051] The degradable polyurethane imitation wood material is prepared as follows:
[0052] In parts by weight, component A:
[0053]
[0054] Component B:
[0055] Polymethylene polyphenylisocyanate.
[0056] The preparation method is as follows:
[0057] (1) Add YNW-4110, A-30, AC-009 into the reaction kettle and stir, then add B8444, H 2 O, PC-5, Y-27 and PC-41, stirred at room temperature for 30 minutes to obtain component A;
[0058] (2) Mix and react component A and component B according to the weight ratio of 1:1.1 to obtain a degradable polyurethane imitation wood material. The test results are shown in Table 3.
[0059] Table 3 embodiment 3 product detection index
[0060]
[0061] From Examples 1-3, it can be known that the obtained polyurethane imitation wood products have the characteristics of low density and high hardness, and it is completely possible to prepare imitation wood products with complex engraving patterns.
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Abstract
The invention belongs to the technical field of polyurethane, and particularly relates to a degradable polyurethane wood-imitation material and a preparing method thereof. The degradable polyurethane wood-imitation material is prepared from a component A and a component B, wherein the component A is prepared from polyether polyol A, polyether polyol B, polyether polyol C, a foam stabilizer, a chemical foaming agent and a catalyst, and the component B is prepared from polymethylene polyphenyl isocyanate. The multiple kinds of degradable biology-base polyether polyol are matched, and environment-friendly water is selected as the chemical foaming agent to prepare the environment-friendly degradable polyurethane wood-imitation product. The Shorehardness can be D 40 or above when the free bubble density of the product is 120-150 kg / m<3>, the dimensional stability shrinking percentage is smaller than 0.5%, the performance index requirement of the polyurethane wood-imitation material is met, and the degradable polyurethane wood-imitation material can be used for preparing wood-imitation products in complex styles.
Description
technical field [0001] The invention belongs to the technical field of polyurethane, and in particular relates to a degradable polyurethane imitation wood material and a preparation method thereof. Background technique [0002] In recent years, due to the excessive exploitation and utilization of forest resources, the ecological environment has deteriorated and soil erosion has been serious. However, with the gradual improvement of people's living standards, people's demand for wood has also increased. Therefore, the research and development of wood-like materials has become a A new field of technology. Resins that can be used as wood-like materials include polyvinyl chloride, polyurethane, polystyrene, etc. Among them, polyurethane wood-like materials have high rigidity and mechanical strength, have the characteristics of simple production process and beautiful appearance of products, and can perfectly replace wood To be used as high-end products. [0003] Although polyur...
Claims
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Application Information
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