TWI453245B - A resin-based composite sanitary ware and preparation method - Google Patents

Description

Resin-based composite material sanitary ware and preparation method thereof

The invention relates to a sanitary ware, in particular to a sanitary ware of a composite material mainly composed of a resin and a ash stone. The invention also discloses a preparation method of the sanitary ware.

Common sanitary wares include bathtubs, washbasins, toilets, urinals and bathtubs. They are made of ceramics, ceramics need to be fired, and they are not environmentally friendly. At the same time, many rare earth resources should be applied in the production process, and rare earth mineral resources are scarce. There is bound to be some pressure on mineral resources.

Recently, artificial agate or acrylic has been used to prepare sanitary ware. See the patent number ZL200410040962.6, the Chinese invention patent “Acrylic Toilet Built by Casting Process” (authorization bulletin number: CN126923C), the toilet in this patent is zero. The parts are prepared by solidly pouring the resin and agate powder mixture into the hollow shell. The obtained product has the general characteristics of the ceramic product, but the method is complicated, the cost is high, the thickness is limited, and the self-cleaning property is not good. On this basis, another toilet with acrylic and FRP composite structure is disclosed. See the Chinese utility model patent "Acrylic and FRP composite structure toilet" with patent number ZL200620034821.8 (authorization bulletin number: CN2926350Y).

Referring to the Chinese invention patent application No. 96106392.0, the Chinese invention patent application discloses "artificial marble products and preparation method thereof" (publication number: CN1167741A), the application Please use marble powder, unsaturated polyester resin, aluminum hydroxide and ash as the main raw material through the casting process, and the product performance and preparation process are improved.

The technical problem to be solved by the present invention is to provide a resin-based composite sanitary ware having high toughness, high strength and low cost in view of the above-mentioned state of the art.

Another technical problem to be solved by the present invention is to provide a method for preparing a resin-based composite sanitary ware which is energy-saving, environmentally friendly and low-cost.

The technical solution adopted by the present invention to solve the above technical problems is: a resin-based composite sanitary ware, which is characterized in that the raw materials are prepared by mixing, injecting, and solidifying a mold, and the components of the raw materials and their weights are as follows:

In order to facilitate subsequent mixing uniformity, the unsaturated polyester resin is prepared by diluting an unsaturated resin with styrene, wherein the weight ratio of styrene to unsaturated resin satisfies:

The unsaturated resin may be an o-phenyl type unsaturated polyester resin or an isophthalic type unsaturated polyester resin.

In order to facilitate subsequent mixing and uniformity, the polyester anti-shrinkage agent is prepared by diluting a polyester having anti-shrinkage function by styrene, wherein the weight ratio of styrene and polyester satisfies:

The reinforcing fibers may be nylon fibers or polyphosphazene microfibers.

The raw material further includes a color paste having a weight ratio of 1% to 4%, and is used for preparing sanitary products of various colors.

The raw material further includes aluminum hydroxide with a weight ratio of 6% to 10%, which can increase the texture and flame retardancy of the product.

Preferably, the initiator comprises tert-butyl peroxybenzoate and benzophenone, and the weight ratio of tert-butyl peroxybenzoate to benzophenone is 1:2.

A method for preparing a resin-based composite sanitary ware, comprising the steps of: (1) taking each raw material component and mixing and mixing into a group-like composite material; (2) injecting the above composite material into a thermosetting plastic machine In the injection equipment; (3), the composite material is injected into the mold, heated, maintained at a temperature of 130 ° C ~ 150 ° C, pressure-proof curing; (4), open the mold, remove the finished product.

Preferably, in the step (3), the mold is subjected to vacuum extraction, the degree of vacuum is -0.06~-0.09 Pa, and the injection is performed by high pressure injection, the injection pressure is 100 kg per square centimeter, and the curing pressure after injection is 2~3. More than a minute.

Compared with the prior art, the invention has the advantages that: cheap limestone and calcium carbonate are used as main raw materials, and are prepared by high-pressure injection into a mold, so that the raw materials are easily obtained. The utility model has the advantages of low cost, no high energy consumption, low energy consumption, reduced labor intensity, injection by a thermosetting plastic machine, high labor efficiency, easy product scale production, and low defect rate; in addition, the obtained product has a smooth appearance as a mirror and self-cleaning. It has good properties, no stain on the surface, can maintain normal temperature, no cold feeling, and the overall product is light, and has the advantages of high toughness and high strength.

The invention is further described in detail below with reference to the embodiments.

The method for preparing the Kunlun spar sanitary ware mainly comprises the following steps: (1) mixing the high-performance modified unsaturated polyester resin into the Kunlun spar powder (the main component is ash stone) and the particles of various particle sizes, Polyester fiber, nylon fiber, pigment and initiator, kneaded and kneaded into a dough-like composite material by kneading machine; (2) injecting the dough-like composite material into the barrel of special injection equipment; (3) according to the production The material usage of the single sanitary product is input into the computer control program of the thermosetting plastic machine, and the quantitative injection mechanism adopts the high pressure injection of the piston barrel into the metal mold of the bathroom; (4) The metal injection mold of the sanitary product is heated by oil introduction, and the heating temperature is maintained at 130 ° C ~ 150 ° C, the vacuum of the metal mold of the bathroom products, vacuum -0.06 ~ -0.09 Pascal, so that the bathroom products produced are dense and no pores; (5), high-pressure composite materials injected into the metal mold, high temperature heating Curing and holding for 2 minutes can eliminate shrinkage and deformation of the product; (6) After the curing of the sanitary product, the metal mold is opened by mechanical means, and the product is ejected from the mold by using the ejector device, and then used Mechanical handle removed from the molds sanitary products placed on the check sum of the product packaging line.

The following are different embodiments of each formulation.

Example 1:18% unsaturated polyester resin, 10% polyester anti-shrinkage agent, 20% nylon fiber (length 3~5mm), nylon fiber as reinforcing fiber, 10% polyester fiber (length 5~10mm), The polyester fiber is also a reinforcing fiber, 13% of 1200 mesh ash stone particles, 27% of 1000 mesh calcium carbonate powder, 3% color paste, and 1% initiator. The initiator was tert-butyl oxybenzoate (TBPB) and benzophenone (BPO), and the weight ratio of tert-butyl peroxybenzoate to benzophenone was 1:2. The sanitary products obtained in this embodiment are thin and light, the lines and curves are smooth, and the tensile strength is up to 70 MPa, and the compressive and flexural strengths are more than 100 MPa.

The unsaturated polyester resin in this embodiment adopts the upper weft 928 produced by Shangwei Enterprise Co., Ltd., and the unsaturated resin has a solid content of 35% to 40%, and the rest is styrene; the polyester anti-shrinkage agent adopts the upper weft. Shangwei 7310 produced by Enterprise Co., Ltd. has a polyester solid content of 63%~67%, and the rest is styrene.

Example 2: 16% unsaturated polyester resin (upper weft 928), 12% polyester anti-shrinkage agent (upper weft 7310), 5% polyphosphazene micron fiber (length 3~6mm), 10% polyester fiber (length 5~10mm), 15% 1200 mesh ash stone particles, 32% 1000 mesh calcium carbonate powder, 8% aluminum hydroxide powder, 3% color paste, 1% initiator. The sanitary product prepared in this embodiment has excellent flame retardant performance and reaches UL94V-0 level. Colleagues have the characteristics of high temperature resistance and corrosion resistance, and can maintain the normal temperature state, and the hand feels no cold feeling. The polyphosphazene microfibers in this embodiment are all reinforcing fibers and serve to enhance the strength and toughness of the product.

Example 3: 16% polyphosphazene modified unsaturated polyester resin (diphenoxy polyphosphazene), 12% polyester anti-shrinkage agent (upper weft 7310), 6% nylon fiber (length 3~5 mm) , 12% polyester fiber (length 5~10mm), 20% 1200 mesh ash stone particles, 32% 1000 mesh calcium carbonate powder Material, 3% color paste, 1% initiator. The water contact angle of the sanitary product in the embodiment reaches 95°, the waterproof performance is obviously improved, the surface of the product is not easy to accumulate, the self-cleaning effect is obtained, the hardness is high, and the impact resistance and wear resistance are also ideal.

The percentages in the above embodiments are all percentages of quality, and the sanitary products in the examples may be a washbasin, a bathtub, a toilet, a bidet, a urinal, a shower tray, and the like.

Claims (7)

A resin-based composite sanitary ware, which is obtained by mixing, injecting, and solidifying a raw material, and the components of the raw materials and their weights are as follows: The unsaturated polyester resin is prepared by diluting an unsaturated resin with styrene, wherein the weight ratio of styrene to unsaturated resin satisfies: The reinforcing fibers are nylon fibers or polyphosphazene microfibers. The resin-based composite sanitary ware according to claim 1, wherein the unsaturated resin is an ortho-phenyl unsaturated polyester resin or an isophthalic unsaturated polyester resin. The resin-based composite sanitary ware according to claim 1, wherein the polyester anti-shrinkage agent is prepared by diluting a polyester having anti-shrinkage function by styrene, wherein styrene and polyester are used. The weight ratio is satisfied: The resin-based composite sanitary ware according to claim 1, wherein the The raw material also includes a color paste with a weight ratio of 1% to 4%. The resin-based composite sanitary ware according to claim 1, wherein the raw material further comprises aluminum hydroxide in a weight ratio of 6% to 10%. The resin-based composite sanitary ware according to claim 1, wherein the initiator comprises tert-butyl peroxybenzoate and benzophenone, and satisfies t-butyl peroxybenzoate and The weight ratio of benzophenone is 1:2. A method for preparing a resin-based composite sanitary ware according to the first to sixth aspects of the patent application, characterized in that the method comprises the following steps: (1) taking each raw material component and mixing and mixing into a group-like composite material; (2) The above composite material is injected into the injection equipment of the thermosetting plastic machine; (3) the composite material is injected into the mold, heated, maintained at a temperature of 130 ° C to 150 ° C, and pressure-cured and cured; (4), the mold is opened, and the finished product is taken out; In the step (3), the mold is vacuumed, the degree of vacuum is -0.06~-0.09 Pa, and the injection is performed by high pressure injection, the injection pressure is 100 kg per square centimeter, and the curing pressure after injection is 2 to 3 minutes or more. .