5results about How to "Good anti-mildew effect" patented technology

The present application relates to the technical field of plant specimen preservation, and particularly relates to a plant specimen original color preservation method based on chemical treatment, comprising the following steps: preparing dry plant specimens; preparing a premix solution; uniformly mixing mint, clove and thunder god vine, crushing, adding into an ethanol aqueous solution, sealing and standing for soaking, adding salicylic acid for ultrasonic treatment, filtering, removing solid matters, recovering ethanol, adding the dry plant specimens into the ethanol aqueous solution, soaking at a temperature of 30-40 DEG C, adding sodium salicylate, trehalose and a color protection agent for stirring, taking out the treated plant specimens, and obtaining pretreated plant specimens; uniformly spraying the premix solution to the surface of the pretreated plant specimens, placing the plant specimens into a specimen clamp for flattening, low-temperature cold treatment, then increasing the temperature for heat preservation, decreasing the temperature for cold treatment again, and freeze-drying; the present application can basically maintain the original color of the plant specimens, improves the identification rate for specimen identification, the preservation method has good mildew-proof effect, can effectively prevent specimen damage, is convenient for classification and preservation, and has longer durability.

The application discloses a modified mildew-proof agent, a mildew-proof sealant and a preparation method of the mildew-proof sealant. The modified mildew-proof agent is obtained by the reaction of an alkali metal salt of 1,2-benzisothiazolin-3-one and chlorotrimethoxysilane. The mildew-proof sealant comprises an A component and a B component. The A component is prepared from raw materials comprising silane modified polyether, reinforcing filler, fumed silica, thixotropic agent, the modified mildew-proof agent, light stabilizer and plasticizer. The B component is prepared from raw materials comprising reinforcing filler, plasticizer, coupling agent and catalyst. The modified mildew-proof agent greatly improves the compatibility with the silane modified polyether resin, and when added into the silane modified polyether resin, the mechanical strength and other comprehensive properties of the obtained mildew-proof sealant are not affected, the mildew-proof effect is greatly improved, the obtained mildew-proof sealant has excellent mechanical properties, good elasticity, good mildew-proof performance and good yellowing resistance.

The application discloses a compostable and degradable seedling paper base system and container and a preparation method thereof, and belongs to the technical fields of horticultural seedling containers, paper base forming and biodegradable barrier coating. The system integrates a paper fiber container, an anti-blocking drainage structure and a polyhydroxyaliphatic acid ester-based biodegradable barrier coating. In view of the industry pain point that traditional containers are difficult to maintain wet strength and degradation, the scheme designs a directional failure zone, which ensures excellent wet resistance and structural stability during seedling period, and significantly improves root penetration efficiency and compost disintegration speed after transplanting. Compared with conventional full coverage technology, the system effectively solves the problems of orifice plugging and water accumulation and mold growth, realizes precise timing control of functions from protection to degradation. The product does not contain fluorides, meets the strict ecological compliance requirements, and achieves excellent seedling quality and environmental safety with better material utilization.

This invention discloses a mildew- and corrosion-resistant particleboard and its preparation method. The mildew- and corrosion-resistant particleboard prepared by this invention has high mechanical strength and good anti-corrosion and mildew-resistant effects. It is made from the following raw material components in parts by weight: 800-1200 parts of particleboard and 50-200 parts of composite adhesive. The composite adhesive is made from the following components in parts by weight: 35-160 parts of soybean glue, 5-20 parts of curing agent, 5-10 parts of mildew inhibitor, and 5-10 parts of corrosion inhibitor. The combined use of polyamide polyamine epichlorohydrin and dimethyloldihydroxyethylene urea in the adhesive components improves the static bending strength of the particleboard; the combined use of n-butylbenzisothiazolinone and dimethoxymethylsilylpropyloctadecyldimethylammonium chloride improves the mildew resistance of the particleboard; and the combined use of modified chitosan copper complex and ammonium pentaborate improves the corrosion resistance of the material, with synergistic effects.

This application provides a bio-based chain extender and its application. The bio-based chain extender includes the bio-based compounds 2,5-furandicarboxaldehyde dioxime and / or 5-hydroxymethyl-2-furancarboxaldehyde dioxime. Using these as bio-based chain extenders, modified polyurethanes with antibacterial and antifungal properties can be synthesized. This imparts long-lasting, stable, and broad-spectrum antibacterial and antifungal properties to polyurethane materials, eliminating the need for additional antibacterial agents. This avoids problems such as environmental pollution, short antibacterial time, and unstable antibacterial performance caused by antibacterial agent migration during the use of polyurethane materials. In particular, this bio-based chain extender is bio-based, safe, and environmentally friendly, and has a significant effect on the antibacterial and antifungal modification of polyurethane materials, showing broad application prospects in medical materials, public facilities, and health protection.