阅读说明：本技术 一种抑菌型软质聚氨酯泡沫塑料 (Bacteriostatic soft polyurethane foam plastic ) 是由 邓万学 褚明 于 2018-08-20 设计创作，主要内容包括：本发明公开了一种抑菌型软质聚氨酯泡沫塑料,属于聚氨酯材料技术领域,包括以下质量份组分：聚醚多元醇50～100份、阻燃聚合物多元醇10～60份、汉麻秆芯粉10～40份、硅油0.5～2份、二乙醇胺1～3份、多异氰酸酯80～120份、催化剂1～2.5份、去离子水4～10份,所述聚醚多元醇的平均羟基数为2～3、羟值为70～250mgKOH/g。本发明的抑菌型软质聚氨酯泡沫塑料,其泡沫密度、压缩强度、拉伸强度等物理指标符合要求,具有抗菌性,且廉价易得,可生物降解,工艺简单且操作方便,容易实施。(The invention discloses bacteriostatic soft polyurethane foam plastic, which belongs to the technical field of polyurethane materials and comprises the following components in parts by mass: 50-100 parts of polyether polyol, 10-60 parts of flame-retardant polymer polyol, 10-40 parts of hemp stalk core powder, 0.5-2 parts of silicone oil, 1-3 parts of diethanolamine, 80-120 parts of polyisocyanate, 1-2.5 parts of catalyst and 4-10 parts of deionized water, wherein the average hydroxyl number of the polyether polyol is 2-3, and the hydroxyl value is 70-250 mgKOH/g. The bacteriostatic flexible polyurethane foam plastic provided by the invention meets the requirements on physical indexes such as foam density, compression strength, tensile strength and the like, has antibacterial property, is cheap and easily available, is biodegradable, and has the advantages of simple process, convenience in operation and easiness in implementation.)

1. The bacteriostatic flexible polyurethane foam is characterized by comprising the following components in parts by mass:

50-100 parts of polyether polyol, 10-60 parts of flame-retardant polymer polyol, 10-40 parts of hemp stalk core powder, 0.5-2 parts of silicone oil, 1-3 parts of diethanolamine, 80-120 parts of polyisocyanate, 1-2.5 parts of catalyst and 4-10 parts of deionized water, wherein the average hydroxyl number of the polyether polyol is 2-3, and the hydroxyl value is 70-250 mgKOH/g.

2. The bacteriostatic flexible polyurethane foam according to claim 1, which comprises the following components in parts by mass:

80 parts of polyether polyol, 40 parts of flame-retardant polymer polyol, 25 parts of hemp stalk core powder, 1 part of silicone oil, 2 parts of diethanolamine, 100 parts of polyisocyanate, 1.5 parts of catalyst and 7 parts of deionized water, wherein the average hydroxyl number of the polyether polyol is 2.5, and the hydroxyl value is 150 mgKOH/g.

3. The flexible bacteriostatic polyurethane foam according to any one of claims 1-2, wherein the polyether polyol is polyether 330N or polyether 3050.

4. A bacteriostatic flexible polyurethane foam according to any one of claims 1 to 2, wherein said flame retardant polymer polyol is TM-300.

5. The bacteriostatic flexible polyurethane foam according to any one of claims 1 to 2, wherein the hemp stalk core powder has a particle size of 40 to 100 mm.

6. A bacteriostatic flexible polyurethane foam according to any one of claims 1 to 2, wherein the polyisocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate.

7. A bacteriostatic flexible polyurethane foam according to any one of claims 1 to 2, wherein the catalyst is one or more of triethylene diamine and bis (dimethylaminoethyl) ether.

Technical Field

The invention belongs to the technical field of polyurethane materials, and particularly relates to bacteriostatic soft polyurethane foam.

Background

Flexible Polyurethane Foam (Polyurethane Foam for short) refers to a kind of Flexible Polyurethane Foam having a certain elasticity, which is a Polyurethane product with the largest usage amount. The product mainly comprises High Resilience Foam (HRF), block sponge, slow resilience foam, self-skinning foam (ISF), semi-rigid energy-absorbing foam and the like. The foam structure of the polyurethane flexible foam is mostly open-celled, has the performances of low density, good elastic recovery, sound absorption, ventilation, heat preservation and the like, and is mainly used as furniture cushion materials, vehicle seat cushion materials and various flexible liner laminated composite materials. The soft foam is also used as a filter material, a sound insulation material, a shockproof material, a decorative material, a packaging material, a heat insulation material and the like in industry and civilian use.

Disclosure of Invention

The antibacterial soft polyurethane foam plastic provided by the invention can be used for overcoming the problems in the prior art, meets the requirements on physical indexes such as foam density, compression strength, tensile strength and the like, has antibacterial property, is cheap and easily available, can be biodegraded, and is simple in process, convenient to operate and easy to implement.

In order to solve the problems in the prior art, the following technical scheme is adopted.

The bacteriostatic flexible polyurethane foam plastic comprises the following components in parts by mass:

50-100 parts of polyether polyol, 10-60 parts of flame-retardant polymer polyol, 10-40 parts of hemp stalk core powder, 0.5-2 parts of silicone oil, 1-3 parts of diethanolamine, 80-120 parts of polyisocyanate, 1-2.5 parts of catalyst and 4-10 parts of deionized water, wherein the average hydroxyl number of the polyether polyol is 2-3, and the hydroxyl value is 70-250 mgKOH/g.

Further, the coating comprises the following components in parts by mass:

80 parts of polyether polyol, 40 parts of flame-retardant polymer polyol, 25 parts of hemp stalk core powder, 1 part of silicone oil, 2 parts of diethanolamine, 100 parts of polyisocyanate, 1.5 parts of catalyst and 7 parts of deionized water, wherein the average hydroxyl number of the polyether polyol is 2.5, and the hydroxyl value is 150 mgKOH/g.

Further, the polyether polyol is polyether 330N or polyether 3050.

Further, the flame-retardant polymer polyol is TM-300.

Furthermore, the particle size of the hemp stalk core powder is 40-100 mm.

Further, the polyisocyanate is one or more of toluene diisocyanate, diphenylmethane diisocyanate and polyphenyl polymethylene polyisocyanate.

Further, the catalyst is one or more of triethylene diamine or bis (dimethylaminoethyl) ether.

Compared with the prior art, the invention has the following beneficial effects:

the foam density of the bacteriostatic flexible polyurethane foam plastic reaches 40kg/m³The flame retardant has good flame retardant property, the oxygen index can reach 32, the physical indexes of the foam density, the compression strength, the tensile strength and the like meet the requirements, the process is simple, the operation is convenient, the implementation is easy, the production cost is low, and the environment is protected.

Detailed Description

The technical solution of the invention will be clearly and completely described below with reference to the embodiments of the invention. It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without any inventive step, are within the scope of the present invention.